/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/default/taipan/svcomp-Reach-32bit-Taipan_Default.epf -tc ../../../trunk/examples/toolchains/AutomizerC.xml --sifa.abstract.domain IntervalDomain -i ../sv-benchmarks/c/ldv-linux-3.12-rc1/linux-3.12-rc1.tar.xz-144_2a-drivers--net--wireless--libertas--usb8xxx.ko-entry_point.cil.out.i -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-f954360 [2023-04-01 01:16:04,243 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-04-01 01:16:04,245 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-04-01 01:16:04,283 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-04-01 01:16:04,283 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-04-01 01:16:04,284 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-04-01 01:16:04,288 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-04-01 01:16:04,290 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-04-01 01:16:04,291 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-04-01 01:16:04,292 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-04-01 01:16:04,293 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-04-01 01:16:04,293 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-04-01 01:16:04,294 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-04-01 01:16:04,294 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-04-01 01:16:04,295 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-04-01 01:16:04,296 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-04-01 01:16:04,297 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-04-01 01:16:04,297 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-04-01 01:16:04,298 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-04-01 01:16:04,300 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-04-01 01:16:04,301 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-04-01 01:16:04,301 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-04-01 01:16:04,302 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-04-01 01:16:04,303 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-04-01 01:16:04,306 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-04-01 01:16:04,306 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-04-01 01:16:04,306 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-04-01 01:16:04,307 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-04-01 01:16:04,307 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-04-01 01:16:04,308 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-04-01 01:16:04,308 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-04-01 01:16:04,309 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-04-01 01:16:04,309 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-04-01 01:16:04,310 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-04-01 01:16:04,311 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-04-01 01:16:04,311 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-04-01 01:16:04,311 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-04-01 01:16:04,311 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-04-01 01:16:04,312 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-04-01 01:16:04,312 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-04-01 01:16:04,318 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-04-01 01:16:04,319 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/taipan/svcomp-Reach-32bit-Taipan_Default.epf [2023-04-01 01:16:04,336 INFO L113 SettingsManager]: Loading preferences was successful [2023-04-01 01:16:04,337 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-04-01 01:16:04,337 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-04-01 01:16:04,337 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-04-01 01:16:04,338 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-04-01 01:16:04,338 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-04-01 01:16:04,338 INFO L138 SettingsManager]: * User list type=DISABLED [2023-04-01 01:16:04,338 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-04-01 01:16:04,338 INFO L138 SettingsManager]: * Explicit value domain=true [2023-04-01 01:16:04,338 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-04-01 01:16:04,338 INFO L138 SettingsManager]: * Octagon Domain=false [2023-04-01 01:16:04,338 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2023-04-01 01:16:04,339 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-04-01 01:16:04,339 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-04-01 01:16:04,339 INFO L138 SettingsManager]: * Interval Domain=false [2023-04-01 01:16:04,339 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-04-01 01:16:04,339 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-04-01 01:16:04,339 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2023-04-01 01:16:04,340 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-04-01 01:16:04,340 INFO L138 SettingsManager]: * sizeof long=4 [2023-04-01 01:16:04,340 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-04-01 01:16:04,340 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-04-01 01:16:04,340 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-04-01 01:16:04,340 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-04-01 01:16:04,340 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-04-01 01:16:04,341 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-04-01 01:16:04,341 INFO L138 SettingsManager]: * sizeof long double=12 [2023-04-01 01:16:04,341 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-04-01 01:16:04,341 INFO L138 SettingsManager]: * Use constant arrays=true [2023-04-01 01:16:04,341 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-04-01 01:16:04,341 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-04-01 01:16:04,341 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-04-01 01:16:04,341 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-04-01 01:16:04,342 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-04-01 01:16:04,342 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2023-04-01 01:16:04,342 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-04-01 01:16:04,342 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-04-01 01:16:04,342 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-04-01 01:16:04,342 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-04-01 01:16:04,342 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-04-01 01:16:04,342 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-04-01 01:16:04,343 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Abstract Domain -> IntervalDomain [2023-04-01 01:16:04,547 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-04-01 01:16:04,569 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-04-01 01:16:04,571 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-04-01 01:16:04,573 INFO L271 PluginConnector]: Initializing CDTParser... [2023-04-01 01:16:04,573 INFO L275 PluginConnector]: CDTParser initialized [2023-04-01 01:16:04,574 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-linux-3.12-rc1/linux-3.12-rc1.tar.xz-144_2a-drivers--net--wireless--libertas--usb8xxx.ko-entry_point.cil.out.i [2023-04-01 01:16:05,708 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-04-01 01:16:06,180 INFO L351 CDTParser]: Found 1 translation units. [2023-04-01 01:16:06,180 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.12-rc1/linux-3.12-rc1.tar.xz-144_2a-drivers--net--wireless--libertas--usb8xxx.ko-entry_point.cil.out.i [2023-04-01 01:16:06,231 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c7a4201a2/f83884112021403ba4fe4d531bce5f74/FLAG9c31a6276 [2023-04-01 01:16:06,247 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c7a4201a2/f83884112021403ba4fe4d531bce5f74 [2023-04-01 01:16:06,249 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-04-01 01:16:06,252 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2023-04-01 01:16:06,255 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-04-01 01:16:06,256 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-04-01 01:16:06,259 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-04-01 01:16:06,260 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.04 01:16:06" (1/1) ... [2023-04-01 01:16:06,262 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@74f7cf33 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 01:16:06, skipping insertion in model container [2023-04-01 01:16:06,262 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.04 01:16:06" (1/1) ... [2023-04-01 01:16:06,268 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-04-01 01:16:06,364 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-04-01 01:16:07,374 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.12-rc1/linux-3.12-rc1.tar.xz-144_2a-drivers--net--wireless--libertas--usb8xxx.ko-entry_point.cil.out.i[182154,182167] [2023-04-01 01:16:07,971 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-04-01 01:16:08,001 INFO L203 MainTranslator]: Completed pre-run [2023-04-01 01:16:08,126 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.12-rc1/linux-3.12-rc1.tar.xz-144_2a-drivers--net--wireless--libertas--usb8xxx.ko-entry_point.cil.out.i[182154,182167] [2023-04-01 01:16:08,302 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-04-01 01:16:08,388 WARN L667 CHandler]: The function __bad_percpu_size is called, but not defined or handled by StandardFunctionHandler. [2023-04-01 01:16:08,394 INFO L208 MainTranslator]: Completed translation [2023-04-01 01:16:08,395 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 01:16:08 WrapperNode [2023-04-01 01:16:08,395 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-04-01 01:16:08,396 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-04-01 01:16:08,396 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-04-01 01:16:08,396 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-04-01 01:16:08,407 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 01:16:08" (1/1) ... [2023-04-01 01:16:08,407 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 01:16:08" (1/1) ... [2023-04-01 01:16:08,482 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 01:16:08" (1/1) ... [2023-04-01 01:16:08,483 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 01:16:08" (1/1) ... [2023-04-01 01:16:08,554 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 01:16:08" (1/1) ... [2023-04-01 01:16:08,569 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 01:16:08" (1/1) ... [2023-04-01 01:16:08,586 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 01:16:08" (1/1) ... [2023-04-01 01:16:08,601 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 01:16:08" (1/1) ... [2023-04-01 01:16:08,622 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-04-01 01:16:08,623 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-04-01 01:16:08,623 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-04-01 01:16:08,623 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-04-01 01:16:08,624 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 01:16:08" (1/1) ... [2023-04-01 01:16:08,629 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-04-01 01:16:08,638 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-01 01:16:08,650 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-04-01 01:16:08,678 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-04-01 01:16:08,694 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2023-04-01 01:16:08,694 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-04-01 01:16:08,694 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2023-04-01 01:16:08,695 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2023-04-01 01:16:08,695 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_num [2023-04-01 01:16:08,695 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_dir_in [2023-04-01 01:16:08,695 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_dir_out [2023-04-01 01:16:08,695 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_xfer_bulk [2023-04-01 01:16:08,695 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_is_bulk_in [2023-04-01 01:16:08,695 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_is_bulk_out [2023-04-01 01:16:08,696 INFO L138 BoogieDeclarations]: Found implementation of procedure variable_test_bit [2023-04-01 01:16:08,696 INFO L138 BoogieDeclarations]: Found implementation of procedure get_current [2023-04-01 01:16:08,696 INFO L138 BoogieDeclarations]: Found implementation of procedure current_thread_info [2023-04-01 01:16:08,696 INFO L138 BoogieDeclarations]: Found implementation of procedure test_ti_thread_flag [2023-04-01 01:16:08,696 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2023-04-01 01:16:08,696 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2023-04-01 01:16:08,696 INFO L138 BoogieDeclarations]: Found implementation of procedure kobject_name [2023-04-01 01:16:08,696 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_name [2023-04-01 01:16:08,696 INFO L138 BoogieDeclarations]: Found implementation of procedure test_tsk_thread_flag [2023-04-01 01:16:08,696 INFO L138 BoogieDeclarations]: Found implementation of procedure signal_pending [2023-04-01 01:16:08,696 INFO L138 BoogieDeclarations]: Found implementation of procedure __create_pipe [2023-04-01 01:16:08,696 INFO L138 BoogieDeclarations]: Found implementation of procedure __kmalloc [2023-04-01 01:16:08,697 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2023-04-01 01:16:08,697 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2023-04-01 01:16:08,697 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-04-01 01:16:08,697 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2023-04-01 01:16:08,697 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2023-04-01 01:16:08,697 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2023-04-01 01:16:08,697 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_ulong [2023-04-01 01:16:08,697 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2023-04-01 01:16:08,697 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2023-04-01 01:16:08,697 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2023-04-01 01:16:08,697 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_trap [2023-04-01 01:16:08,698 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_reserve [2023-04-01 01:16:08,698 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_alloc_skb [2023-04-01 01:16:08,698 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_alloc_skb [2023-04-01 01:16:08,698 INFO L138 BoogieDeclarations]: Found implementation of procedure if_usb_write_bulk_callback [2023-04-01 01:16:08,698 INFO L138 BoogieDeclarations]: Found implementation of procedure if_usb_free [2023-04-01 01:16:08,698 INFO L138 BoogieDeclarations]: Found implementation of procedure if_usb_setup_firmware [2023-04-01 01:16:08,698 INFO L138 BoogieDeclarations]: Found implementation of procedure if_usb_fw_timeo [2023-04-01 01:16:08,699 INFO L138 BoogieDeclarations]: Found implementation of procedure if_usb_probe [2023-04-01 01:16:08,699 INFO L138 BoogieDeclarations]: Found implementation of procedure if_usb_disconnect [2023-04-01 01:16:08,699 INFO L138 BoogieDeclarations]: Found implementation of procedure if_usb_send_fw_pkt [2023-04-01 01:16:08,699 INFO L138 BoogieDeclarations]: Found implementation of procedure if_usb_reset_device [2023-04-01 01:16:08,700 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_tx_block [2023-04-01 01:16:08,700 INFO L138 BoogieDeclarations]: Found implementation of procedure __if_usb_submit_rx_urb [2023-04-01 01:16:08,700 INFO L138 BoogieDeclarations]: Found implementation of procedure if_usb_submit_rx_urb_fwload [2023-04-01 01:16:08,700 INFO L138 BoogieDeclarations]: Found implementation of procedure if_usb_submit_rx_urb [2023-04-01 01:16:08,700 INFO L138 BoogieDeclarations]: Found implementation of procedure if_usb_receive_fwload [2023-04-01 01:16:08,700 INFO L138 BoogieDeclarations]: Found implementation of procedure process_cmdtypedata [2023-04-01 01:16:08,700 INFO L138 BoogieDeclarations]: Found implementation of procedure process_cmdrequest [2023-04-01 01:16:08,700 INFO L138 BoogieDeclarations]: Found implementation of procedure if_usb_receive [2023-04-01 01:16:08,700 INFO L138 BoogieDeclarations]: Found implementation of procedure if_usb_host_to_card [2023-04-01 01:16:08,701 INFO L138 BoogieDeclarations]: Found implementation of procedure if_usb_issue_boot_command [2023-04-01 01:16:08,701 INFO L138 BoogieDeclarations]: Found implementation of procedure check_fwfile_format [2023-04-01 01:16:08,701 INFO L138 BoogieDeclarations]: Found implementation of procedure if_usb_prog_firmware [2023-04-01 01:16:08,701 INFO L138 BoogieDeclarations]: Found implementation of procedure if_usb_suspend [2023-04-01 01:16:08,701 INFO L138 BoogieDeclarations]: Found implementation of procedure if_usb_resume [2023-04-01 01:16:08,702 INFO L138 BoogieDeclarations]: Found implementation of procedure if_usb_driver_init [2023-04-01 01:16:08,702 INFO L138 BoogieDeclarations]: Found implementation of procedure if_usb_driver_exit [2023-04-01 01:16:08,702 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_suitable_timer_1 [2023-04-01 01:16:08,702 INFO L138 BoogieDeclarations]: Found implementation of procedure timer_init_1 [2023-04-01 01:16:08,702 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_driver_2 [2023-04-01 01:16:08,702 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_pending_timer_1 [2023-04-01 01:16:08,703 INFO L138 BoogieDeclarations]: Found implementation of procedure choose_timer_1 [2023-04-01 01:16:08,703 INFO L138 BoogieDeclarations]: Found implementation of procedure reg_timer_1 [2023-04-01 01:16:08,703 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_timer_1 [2023-04-01 01:16:08,703 INFO L138 BoogieDeclarations]: Found implementation of procedure disable_suitable_timer_1 [2023-04-01 01:16:08,703 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2023-04-01 01:16:08,703 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_del_timer_1 [2023-04-01 01:16:08,703 INFO L138 BoogieDeclarations]: Found implementation of procedure interface_to_usbdev [2023-04-01 01:16:08,703 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_free_urb_3 [2023-04-01 01:16:08,703 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_free_urb_4 [2023-04-01 01:16:08,703 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_alloc_urb_5 [2023-04-01 01:16:08,703 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_alloc_urb_6 [2023-04-01 01:16:08,703 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_get_dev_7 [2023-04-01 01:16:08,704 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_set_intfdata_8 [2023-04-01 01:16:08,704 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_get_intfdata_9 [2023-04-01 01:16:08,704 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_put_dev_11 [2023-04-01 01:16:08,704 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_fill_bulk_urb_12 [2023-04-01 01:16:08,705 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_submit_urb_13 [2023-04-01 01:16:08,705 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_submit_urb_15 [2023-04-01 01:16:08,705 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mod_timer_16 [2023-04-01 01:16:08,705 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_del_timer_sync_17 [2023-04-01 01:16:08,705 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_register_driver_20 [2023-04-01 01:16:08,705 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_deregister_21 [2023-04-01 01:16:08,706 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop___0 [2023-04-01 01:16:08,706 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_get_intfdata [2023-04-01 01:16:08,706 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_set_intfdata [2023-04-01 01:16:08,706 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_put_intf [2023-04-01 01:16:08,706 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_alloc_urb [2023-04-01 01:16:08,706 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_urb [2023-04-01 01:16:08,706 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_fill_int_urb [2023-04-01 01:16:08,706 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_fill_bulk_urb [2023-04-01 01:16:08,706 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_submit_urb [2023-04-01 01:16:08,706 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_interface_to_usbdev [2023-04-01 01:16:08,706 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_get_dev [2023-04-01 01:16:08,706 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_put_dev [2023-04-01 01:16:08,706 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_get_interface [2023-04-01 01:16:08,706 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_put_interface [2023-04-01 01:16:08,707 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_serial_register [2023-04-01 01:16:08,707 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_serial_deregister [2023-04-01 01:16:08,707 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2023-04-01 01:16:08,707 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_waitqueue_head [2023-04-01 01:16:08,707 INFO L138 BoogieDeclarations]: Found implementation of procedure __lbs_cmd [2023-04-01 01:16:08,707 INFO L138 BoogieDeclarations]: Found implementation of procedure __netdev_alloc_skb [2023-04-01 01:16:08,707 INFO L138 BoogieDeclarations]: Found implementation of procedure __wake_up [2023-04-01 01:16:08,707 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock [2023-04-01 01:16:08,707 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_unlock [2023-04-01 01:16:08,708 INFO L138 BoogieDeclarations]: Found implementation of procedure del_timer [2023-04-01 01:16:08,708 INFO L138 BoogieDeclarations]: Found implementation of procedure del_timer_sync [2023-04-01 01:16:08,708 INFO L138 BoogieDeclarations]: Found implementation of procedure finish_wait [2023-04-01 01:16:08,708 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree_skb [2023-04-01 01:16:08,708 INFO L138 BoogieDeclarations]: Found implementation of procedure kmemdup [2023-04-01 01:16:08,708 INFO L138 BoogieDeclarations]: Found implementation of procedure lbs_add_card [2023-04-01 01:16:08,708 INFO L138 BoogieDeclarations]: Found implementation of procedure lbs_get_firmware_async [2023-04-01 01:16:08,709 INFO L138 BoogieDeclarations]: Found implementation of procedure lbs_host_sleep_cfg [2023-04-01 01:16:08,709 INFO L138 BoogieDeclarations]: Found implementation of procedure lbs_host_to_card_done [2023-04-01 01:16:08,709 INFO L138 BoogieDeclarations]: Found implementation of procedure lbs_notify_command_response [2023-04-01 01:16:08,710 INFO L138 BoogieDeclarations]: Found implementation of procedure lbs_process_rxed_packet [2023-04-01 01:16:08,710 INFO L138 BoogieDeclarations]: Found implementation of procedure lbs_queue_event [2023-04-01 01:16:08,712 INFO L138 BoogieDeclarations]: Found implementation of procedure lbs_remove_card [2023-04-01 01:16:08,712 INFO L138 BoogieDeclarations]: Found implementation of procedure lbs_resume [2023-04-01 01:16:08,716 INFO L138 BoogieDeclarations]: Found implementation of procedure lbs_send_tx_feedback [2023-04-01 01:16:08,716 INFO L138 BoogieDeclarations]: Found implementation of procedure lbs_start_card [2023-04-01 01:16:08,716 INFO L138 BoogieDeclarations]: Found implementation of procedure lbs_stop_card [2023-04-01 01:16:08,716 INFO L138 BoogieDeclarations]: Found implementation of procedure lbs_suspend [2023-04-01 01:16:08,717 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize [2023-04-01 01:16:08,717 INFO L138 BoogieDeclarations]: Found implementation of procedure mod_timer [2023-04-01 01:16:08,717 INFO L138 BoogieDeclarations]: Found implementation of procedure msleep [2023-04-01 01:16:08,717 INFO L138 BoogieDeclarations]: Found implementation of procedure msleep_interruptible [2023-04-01 01:16:08,717 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_info [2023-04-01 01:16:08,717 INFO L138 BoogieDeclarations]: Found implementation of procedure prepare_to_wait [2023-04-01 01:16:08,717 INFO L138 BoogieDeclarations]: Found implementation of procedure printk [2023-04-01 01:16:08,718 INFO L138 BoogieDeclarations]: Found implementation of procedure release_firmware [2023-04-01 01:16:08,718 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule [2023-04-01 01:16:08,718 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_pull [2023-04-01 01:16:08,718 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_put [2023-04-01 01:16:08,718 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_deregister [2023-04-01 01:16:08,718 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_kill_urb [2023-04-01 01:16:08,718 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_register_driver [2023-04-01 01:16:08,718 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_reset_device [2023-04-01 01:16:08,718 INFO L138 BoogieDeclarations]: Found implementation of procedure autoremove_wake_function [2023-04-01 01:16:08,718 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2023-04-01 01:16:08,718 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2023-04-01 01:16:08,718 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2023-04-01 01:16:08,718 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2023-04-01 01:16:08,718 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2023-04-01 01:16:08,718 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2023-04-01 01:16:08,719 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_perror_fail [2023-04-01 01:16:08,719 INFO L130 BoogieDeclarations]: Found specification of procedure __assert [2023-04-01 01:16:08,719 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2023-04-01 01:16:08,719 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-04-01 01:16:08,719 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2023-04-01 01:16:08,719 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy [2023-04-01 01:16:08,719 INFO L130 BoogieDeclarations]: Found specification of procedure memset [2023-04-01 01:16:08,719 INFO L130 BoogieDeclarations]: Found specification of procedure kmemdup [2023-04-01 01:16:08,719 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_num [2023-04-01 01:16:08,719 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-04-01 01:16:08,719 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_dir_in [2023-04-01 01:16:08,719 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_dir_out [2023-04-01 01:16:08,719 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_xfer_bulk [2023-04-01 01:16:08,719 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_is_bulk_in [2023-04-01 01:16:08,719 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_is_bulk_out [2023-04-01 01:16:08,719 INFO L130 BoogieDeclarations]: Found specification of procedure variable_test_bit [2023-04-01 01:16:08,719 INFO L130 BoogieDeclarations]: Found specification of procedure printk [2023-04-01 01:16:08,719 INFO L130 BoogieDeclarations]: Found specification of procedure msleep [2023-04-01 01:16:08,720 INFO L130 BoogieDeclarations]: Found specification of procedure msleep_interruptible [2023-04-01 01:16:08,720 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2023-04-01 01:16:08,720 INFO L130 BoogieDeclarations]: Found specification of procedure get_current [2023-04-01 01:16:08,720 INFO L130 BoogieDeclarations]: Found specification of procedure current_thread_info [2023-04-01 01:16:08,720 INFO L130 BoogieDeclarations]: Found specification of procedure test_ti_thread_flag [2023-04-01 01:16:08,720 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock [2023-04-01 01:16:08,720 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_unlock [2023-04-01 01:16:08,720 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2023-04-01 01:16:08,720 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2023-04-01 01:16:08,720 INFO L130 BoogieDeclarations]: Found specification of procedure del_timer [2023-04-01 01:16:08,720 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_del_timer_1 [2023-04-01 01:16:08,720 INFO L130 BoogieDeclarations]: Found specification of procedure mod_timer [2023-04-01 01:16:08,720 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mod_timer_16 [2023-04-01 01:16:08,721 INFO L130 BoogieDeclarations]: Found specification of procedure del_timer_sync [2023-04-01 01:16:08,721 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_del_timer_sync_17 [2023-04-01 01:16:08,721 INFO L130 BoogieDeclarations]: Found specification of procedure __init_waitqueue_head [2023-04-01 01:16:08,721 INFO L130 BoogieDeclarations]: Found specification of procedure __wake_up [2023-04-01 01:16:08,721 INFO L130 BoogieDeclarations]: Found specification of procedure prepare_to_wait [2023-04-01 01:16:08,721 INFO L130 BoogieDeclarations]: Found specification of procedure finish_wait [2023-04-01 01:16:08,721 INFO L130 BoogieDeclarations]: Found specification of procedure autoremove_wake_function [2023-04-01 01:16:08,722 INFO L130 BoogieDeclarations]: Found specification of procedure kobject_name [2023-04-01 01:16:08,722 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-04-01 01:16:08,722 INFO L130 BoogieDeclarations]: Found specification of procedure dev_name [2023-04-01 01:16:08,722 INFO L130 BoogieDeclarations]: Found specification of procedure schedule [2023-04-01 01:16:08,723 INFO L130 BoogieDeclarations]: Found specification of procedure test_tsk_thread_flag [2023-04-01 01:16:08,723 INFO L130 BoogieDeclarations]: Found specification of procedure signal_pending [2023-04-01 01:16:08,723 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_get_intfdata_9 [2023-04-01 01:16:08,723 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_set_intfdata_8 [2023-04-01 01:16:08,723 INFO L130 BoogieDeclarations]: Found specification of procedure interface_to_usbdev [2023-04-01 01:16:08,723 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_get_dev_7 [2023-04-01 01:16:08,723 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_put_dev_11 [2023-04-01 01:16:08,723 INFO L130 BoogieDeclarations]: Found specification of procedure usb_reset_device [2023-04-01 01:16:08,723 INFO L130 BoogieDeclarations]: Found specification of procedure usb_register_driver [2023-04-01 01:16:08,723 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_register_driver_20 [2023-04-01 01:16:08,723 INFO L130 BoogieDeclarations]: Found specification of procedure usb_deregister [2023-04-01 01:16:08,723 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_deregister_21 [2023-04-01 01:16:08,723 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_fill_bulk_urb_12 [2023-04-01 01:16:08,723 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_alloc_urb_5 [2023-04-01 01:16:08,723 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_alloc_urb_6 [2023-04-01 01:16:08,723 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_free_urb_3 [2023-04-01 01:16:08,723 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_free_urb_4 [2023-04-01 01:16:08,724 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_submit_urb_13 [2023-04-01 01:16:08,724 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_submit_urb_15 [2023-04-01 01:16:08,724 INFO L130 BoogieDeclarations]: Found specification of procedure usb_kill_urb [2023-04-01 01:16:08,724 INFO L130 BoogieDeclarations]: Found specification of procedure __create_pipe [2023-04-01 01:16:08,724 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_alloc_urb [2023-04-01 01:16:08,724 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_urb [2023-04-01 01:16:08,724 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_fill_bulk_urb [2023-04-01 01:16:08,724 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_submit_urb [2023-04-01 01:16:08,724 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_interface_to_usbdev [2023-04-01 01:16:08,724 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_get_dev [2023-04-01 01:16:08,724 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_put_dev [2023-04-01 01:16:08,724 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_get_intfdata [2023-04-01 01:16:08,724 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_set_intfdata [2023-04-01 01:16:08,724 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2023-04-01 01:16:08,724 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2023-04-01 01:16:08,724 INFO L130 BoogieDeclarations]: Found specification of procedure __kmalloc [2023-04-01 01:16:08,725 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2023-04-01 01:16:08,725 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2023-04-01 01:16:08,725 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2023-04-01 01:16:08,725 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2023-04-01 01:16:08,725 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2023-04-01 01:16:08,725 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2023-04-01 01:16:08,725 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_ulong [2023-04-01 01:16:08,725 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-04-01 01:16:08,725 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-04-01 01:16:08,725 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2023-04-01 01:16:08,725 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2023-04-01 01:16:08,725 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_ulong [2023-04-01 01:16:08,725 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2023-04-01 01:16:08,725 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2023-04-01 01:16:08,725 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_trap [2023-04-01 01:16:08,725 INFO L130 BoogieDeclarations]: Found specification of procedure activate_suitable_timer_1 [2023-04-01 01:16:08,726 INFO L130 BoogieDeclarations]: Found specification of procedure timer_init_1 [2023-04-01 01:16:08,726 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_driver_2 [2023-04-01 01:16:08,726 INFO L130 BoogieDeclarations]: Found specification of procedure activate_pending_timer_1 [2023-04-01 01:16:08,726 INFO L130 BoogieDeclarations]: Found specification of procedure choose_timer_1 [2023-04-01 01:16:08,726 INFO L130 BoogieDeclarations]: Found specification of procedure reg_timer_1 [2023-04-01 01:16:08,726 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_timer_1 [2023-04-01 01:16:08,726 INFO L130 BoogieDeclarations]: Found specification of procedure disable_suitable_timer_1 [2023-04-01 01:16:08,727 INFO L130 BoogieDeclarations]: Found specification of procedure release_firmware [2023-04-01 01:16:08,730 INFO L130 BoogieDeclarations]: Found specification of procedure kfree_skb [2023-04-01 01:16:08,730 INFO L130 BoogieDeclarations]: Found specification of procedure skb_put [2023-04-01 01:16:08,731 INFO L130 BoogieDeclarations]: Found specification of procedure skb_pull [2023-04-01 01:16:08,731 INFO L130 BoogieDeclarations]: Found specification of procedure skb_reserve [2023-04-01 01:16:08,731 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-04-01 01:16:08,731 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-04-01 01:16:08,731 INFO L130 BoogieDeclarations]: Found specification of procedure __netdev_alloc_skb [2023-04-01 01:16:08,731 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_alloc_skb [2023-04-01 01:16:08,731 INFO L130 BoogieDeclarations]: Found specification of procedure dev_alloc_skb [2023-04-01 01:16:08,731 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_info [2023-04-01 01:16:08,731 INFO L130 BoogieDeclarations]: Found specification of procedure lbs_send_tx_feedback [2023-04-01 01:16:08,731 INFO L130 BoogieDeclarations]: Found specification of procedure lbs_process_rxed_packet [2023-04-01 01:16:08,731 INFO L130 BoogieDeclarations]: Found specification of procedure lbs_add_card [2023-04-01 01:16:08,731 INFO L130 BoogieDeclarations]: Found specification of procedure lbs_remove_card [2023-04-01 01:16:08,731 INFO L130 BoogieDeclarations]: Found specification of procedure lbs_start_card [2023-04-01 01:16:08,731 INFO L130 BoogieDeclarations]: Found specification of procedure lbs_stop_card [2023-04-01 01:16:08,731 INFO L130 BoogieDeclarations]: Found specification of procedure lbs_host_to_card_done [2023-04-01 01:16:08,731 INFO L130 BoogieDeclarations]: Found specification of procedure lbs_suspend [2023-04-01 01:16:08,732 INFO L130 BoogieDeclarations]: Found specification of procedure lbs_resume [2023-04-01 01:16:08,732 INFO L130 BoogieDeclarations]: Found specification of procedure lbs_queue_event [2023-04-01 01:16:08,732 INFO L130 BoogieDeclarations]: Found specification of procedure lbs_notify_command_response [2023-04-01 01:16:08,732 INFO L130 BoogieDeclarations]: Found specification of procedure lbs_get_firmware_async [2023-04-01 01:16:08,732 INFO L130 BoogieDeclarations]: Found specification of procedure __lbs_cmd [2023-04-01 01:16:08,732 INFO L130 BoogieDeclarations]: Found specification of procedure lbs_cmd_copyback [2023-04-01 01:16:08,732 INFO L130 BoogieDeclarations]: Found specification of procedure lbs_host_sleep_cfg [2023-04-01 01:16:08,732 INFO L130 BoogieDeclarations]: Found specification of procedure if_usb_receive [2023-04-01 01:16:08,732 INFO L130 BoogieDeclarations]: Found specification of procedure if_usb_receive_fwload [2023-04-01 01:16:08,732 INFO L130 BoogieDeclarations]: Found specification of procedure if_usb_prog_firmware [2023-04-01 01:16:08,732 INFO L130 BoogieDeclarations]: Found specification of procedure if_usb_host_to_card [2023-04-01 01:16:08,732 INFO L130 BoogieDeclarations]: Found specification of procedure usb_tx_block [2023-04-01 01:16:08,732 INFO L130 BoogieDeclarations]: Found specification of procedure if_usb_free [2023-04-01 01:16:08,732 INFO L130 BoogieDeclarations]: Found specification of procedure if_usb_submit_rx_urb [2023-04-01 01:16:08,732 INFO L130 BoogieDeclarations]: Found specification of procedure if_usb_reset_device [2023-04-01 01:16:08,732 INFO L130 BoogieDeclarations]: Found specification of procedure if_usb_write_bulk_callback [2023-04-01 01:16:08,732 INFO L130 BoogieDeclarations]: Found specification of procedure if_usb_setup_firmware [2023-04-01 01:16:08,732 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-04-01 01:16:08,733 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-04-01 01:16:08,733 INFO L130 BoogieDeclarations]: Found specification of procedure if_usb_fw_timeo [2023-04-01 01:16:08,733 INFO L130 BoogieDeclarations]: Found specification of procedure if_usb_probe [2023-04-01 01:16:08,733 INFO L130 BoogieDeclarations]: Found specification of procedure if_usb_disconnect [2023-04-01 01:16:08,733 INFO L130 BoogieDeclarations]: Found specification of procedure if_usb_send_fw_pkt [2023-04-01 01:16:08,733 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2023-04-01 01:16:08,733 INFO L130 BoogieDeclarations]: Found specification of procedure __if_usb_submit_rx_urb [2023-04-01 01:16:08,733 INFO L130 BoogieDeclarations]: Found specification of procedure if_usb_submit_rx_urb_fwload [2023-04-01 01:16:08,733 INFO L130 BoogieDeclarations]: Found specification of procedure process_cmdtypedata [2023-04-01 01:16:08,733 INFO L130 BoogieDeclarations]: Found specification of procedure process_cmdrequest [2023-04-01 01:16:08,733 INFO L130 BoogieDeclarations]: Found specification of procedure if_usb_issue_boot_command [2023-04-01 01:16:08,733 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2023-04-01 01:16:08,733 INFO L130 BoogieDeclarations]: Found specification of procedure check_fwfile_format [2023-04-01 01:16:08,733 INFO L130 BoogieDeclarations]: Found specification of procedure if_usb_suspend [2023-04-01 01:16:08,733 INFO L130 BoogieDeclarations]: Found specification of procedure if_usb_resume [2023-04-01 01:16:08,733 INFO L130 BoogieDeclarations]: Found specification of procedure if_usb_driver_init [2023-04-01 01:16:08,733 INFO L130 BoogieDeclarations]: Found specification of procedure if_usb_driver_exit [2023-04-01 01:16:08,733 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize [2023-04-01 01:16:08,734 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2023-04-01 01:16:08,734 INFO L130 BoogieDeclarations]: Found specification of procedure main [2023-04-01 01:16:08,734 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop___0 [2023-04-01 01:16:08,734 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_put_intf [2023-04-01 01:16:08,734 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_fill_int_urb [2023-04-01 01:16:08,734 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2023-04-01 01:16:08,734 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_get_interface [2023-04-01 01:16:08,734 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_put_interface [2023-04-01 01:16:08,734 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_serial_register [2023-04-01 01:16:08,734 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_serial_deregister [2023-04-01 01:16:08,734 INFO L130 BoogieDeclarations]: Found specification of procedure free [2023-04-01 01:16:08,734 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2023-04-01 01:16:08,734 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-04-01 01:16:08,734 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2023-04-01 01:16:08,734 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-04-01 01:16:08,734 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2023-04-01 01:16:08,734 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2023-04-01 01:16:08,734 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2023-04-01 01:16:08,735 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2023-04-01 01:16:09,339 INFO L236 CfgBuilder]: Building ICFG [2023-04-01 01:16:09,348 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-04-01 01:16:09,673 INFO L771 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2023-04-01 01:16:10,917 INFO L771 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stop___0FINAL: assume true; [2023-04-01 01:16:12,069 INFO L277 CfgBuilder]: Performing block encoding [2023-04-01 01:16:13,354 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-04-01 01:16:13,354 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-04-01 01:16:13,359 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.04 01:16:13 BoogieIcfgContainer [2023-04-01 01:16:13,359 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-04-01 01:16:13,361 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-04-01 01:16:13,361 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-04-01 01:16:13,364 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-04-01 01:16:13,364 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 01.04 01:16:06" (1/3) ... [2023-04-01 01:16:13,365 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@a7ddbc2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.04 01:16:13, skipping insertion in model container [2023-04-01 01:16:13,365 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 01:16:08" (2/3) ... [2023-04-01 01:16:13,365 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@a7ddbc2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.04 01:16:13, skipping insertion in model container [2023-04-01 01:16:13,365 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.04 01:16:13" (3/3) ... [2023-04-01 01:16:13,366 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-3.12-rc1.tar.xz-144_2a-drivers--net--wireless--libertas--usb8xxx.ko-entry_point.cil.out.i [2023-04-01 01:16:13,384 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-04-01 01:16:13,384 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-04-01 01:16:13,447 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-04-01 01:16:13,453 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;@28449cb4, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-04-01 01:16:13,453 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-04-01 01:16:13,461 INFO L276 IsEmpty]: Start isEmpty. Operand has 1174 states, 681 states have (on average 1.2584434654919237) internal successors, (857), 721 states have internal predecessors, (857), 353 states have call successors, (353), 132 states have call predecessors, (353), 130 states have return successors, (345), 334 states have call predecessors, (345), 345 states have call successors, (345) [2023-04-01 01:16:13,472 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2023-04-01 01:16:13,473 INFO L187 NwaCegarLoop]: Found error trace [2023-04-01 01:16:13,473 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-01 01:16:13,474 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-01 01:16:13,478 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-01 01:16:13,478 INFO L85 PathProgramCache]: Analyzing trace with hash -1568254858, now seen corresponding path program 1 times [2023-04-01 01:16:13,486 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-01 01:16:13,487 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [995719340] [2023-04-01 01:16:13,487 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-01 01:16:13,487 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-01 01:16:13,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 01:16:14,158 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-04-01 01:16:14,158 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-01 01:16:14,159 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [995719340] [2023-04-01 01:16:14,159 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [995719340] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-01 01:16:14,159 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-01 01:16:14,159 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-04-01 01:16:14,161 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1021414081] [2023-04-01 01:16:14,162 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-01 01:16:14,166 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-04-01 01:16:14,167 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-01 01:16:14,203 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-04-01 01:16:14,204 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-04-01 01:16:14,210 INFO L87 Difference]: Start difference. First operand has 1174 states, 681 states have (on average 1.2584434654919237) internal successors, (857), 721 states have internal predecessors, (857), 353 states have call successors, (353), 132 states have call predecessors, (353), 130 states have return successors, (345), 334 states have call predecessors, (345), 345 states have call successors, (345) Second operand has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 3 states have internal predecessors, (25), 2 states have call successors, (11), 2 states have call predecessors, (11), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-04-01 01:16:15,227 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-01 01:16:15,227 INFO L93 Difference]: Finished difference Result 2776 states and 3727 transitions. [2023-04-01 01:16:15,228 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-04-01 01:16:15,229 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 3 states have internal predecessors, (25), 2 states have call successors, (11), 2 states have call predecessors, (11), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 44 [2023-04-01 01:16:15,230 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-01 01:16:15,251 INFO L225 Difference]: With dead ends: 2776 [2023-04-01 01:16:15,251 INFO L226 Difference]: Without dead ends: 1814 [2023-04-01 01:16:15,262 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-04-01 01:16:15,265 INFO L413 NwaCegarLoop]: 1091 mSDtfsCounter, 1205 mSDsluCounter, 1061 mSDsCounter, 0 mSdLazyCounter, 380 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1205 SdHoareTripleChecker+Valid, 2152 SdHoareTripleChecker+Invalid, 383 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 380 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-04-01 01:16:15,266 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1205 Valid, 2152 Invalid, 383 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 380 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-04-01 01:16:15,284 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1814 states. [2023-04-01 01:16:15,399 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1814 to 1814. [2023-04-01 01:16:15,403 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1814 states, 1062 states have (on average 1.253295668549906) internal successors, (1331), 1114 states have internal predecessors, (1331), 548 states have call successors, (548), 206 states have call predecessors, (548), 203 states have return successors, (541), 519 states have call predecessors, (541), 541 states have call successors, (541) [2023-04-01 01:16:15,413 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1814 states to 1814 states and 2420 transitions. [2023-04-01 01:16:15,416 INFO L78 Accepts]: Start accepts. Automaton has 1814 states and 2420 transitions. Word has length 44 [2023-04-01 01:16:15,416 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-01 01:16:15,416 INFO L495 AbstractCegarLoop]: Abstraction has 1814 states and 2420 transitions. [2023-04-01 01:16:15,416 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 3 states have internal predecessors, (25), 2 states have call successors, (11), 2 states have call predecessors, (11), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-04-01 01:16:15,417 INFO L276 IsEmpty]: Start isEmpty. Operand 1814 states and 2420 transitions. [2023-04-01 01:16:15,420 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2023-04-01 01:16:15,420 INFO L187 NwaCegarLoop]: Found error trace [2023-04-01 01:16:15,421 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-01 01:16:15,421 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-04-01 01:16:15,421 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-01 01:16:15,422 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-01 01:16:15,422 INFO L85 PathProgramCache]: Analyzing trace with hash 124533922, now seen corresponding path program 1 times [2023-04-01 01:16:15,422 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-01 01:16:15,422 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [910789340] [2023-04-01 01:16:15,422 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-01 01:16:15,422 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-01 01:16:15,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 01:16:16,208 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-04-01 01:16:16,209 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-01 01:16:16,209 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [910789340] [2023-04-01 01:16:16,209 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [910789340] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-01 01:16:16,209 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-01 01:16:16,209 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-04-01 01:16:16,209 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1835954067] [2023-04-01 01:16:16,209 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-01 01:16:16,211 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-04-01 01:16:16,211 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-01 01:16:16,212 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-04-01 01:16:16,212 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-04-01 01:16:16,212 INFO L87 Difference]: Start difference. First operand 1814 states and 2420 transitions. Second operand has 3 states, 3 states have (on average 10.333333333333334) internal successors, (31), 3 states have internal predecessors, (31), 3 states have call successors, (13), 3 states have call predecessors, (13), 2 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2023-04-01 01:16:17,083 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-01 01:16:17,084 INFO L93 Difference]: Finished difference Result 3419 states and 4569 transitions. [2023-04-01 01:16:17,084 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-04-01 01:16:17,084 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 10.333333333333334) internal successors, (31), 3 states have internal predecessors, (31), 3 states have call successors, (13), 3 states have call predecessors, (13), 2 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 57 [2023-04-01 01:16:17,085 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-01 01:16:17,103 INFO L225 Difference]: With dead ends: 3419 [2023-04-01 01:16:17,103 INFO L226 Difference]: Without dead ends: 3416 [2023-04-01 01:16:17,108 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-04-01 01:16:17,110 INFO L413 NwaCegarLoop]: 1059 mSDtfsCounter, 1096 mSDsluCounter, 1040 mSDsCounter, 0 mSdLazyCounter, 374 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1096 SdHoareTripleChecker+Valid, 2099 SdHoareTripleChecker+Invalid, 375 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 374 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-04-01 01:16:17,111 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1096 Valid, 2099 Invalid, 375 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 374 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-04-01 01:16:17,116 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3416 states. [2023-04-01 01:16:17,293 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3416 to 3404. [2023-04-01 01:16:17,299 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3404 states, 1998 states have (on average 1.2552552552552552) internal successors, (2508), 2098 states have internal predecessors, (2508), 1025 states have call successors, (1025), 388 states have call predecessors, (1025), 380 states have return successors, (1019), 967 states have call predecessors, (1019), 1017 states have call successors, (1019) [2023-04-01 01:16:17,317 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3404 states to 3404 states and 4552 transitions. [2023-04-01 01:16:17,318 INFO L78 Accepts]: Start accepts. Automaton has 3404 states and 4552 transitions. Word has length 57 [2023-04-01 01:16:17,318 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-01 01:16:17,318 INFO L495 AbstractCegarLoop]: Abstraction has 3404 states and 4552 transitions. [2023-04-01 01:16:17,319 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 10.333333333333334) internal successors, (31), 3 states have internal predecessors, (31), 3 states have call successors, (13), 3 states have call predecessors, (13), 2 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2023-04-01 01:16:17,319 INFO L276 IsEmpty]: Start isEmpty. Operand 3404 states and 4552 transitions. [2023-04-01 01:16:17,321 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2023-04-01 01:16:17,321 INFO L187 NwaCegarLoop]: Found error trace [2023-04-01 01:16:17,321 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-01 01:16:17,322 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-04-01 01:16:17,322 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-01 01:16:17,322 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-01 01:16:17,322 INFO L85 PathProgramCache]: Analyzing trace with hash -435137181, now seen corresponding path program 1 times [2023-04-01 01:16:17,322 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-01 01:16:17,322 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1834943203] [2023-04-01 01:16:17,323 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-01 01:16:17,323 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-01 01:16:17,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 01:16:17,854 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-04-01 01:16:17,854 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-01 01:16:17,854 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1834943203] [2023-04-01 01:16:17,854 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1834943203] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-01 01:16:17,854 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-01 01:16:17,854 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-04-01 01:16:17,854 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [586087153] [2023-04-01 01:16:17,855 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-01 01:16:17,855 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-04-01 01:16:17,855 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-01 01:16:17,856 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-04-01 01:16:17,856 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-04-01 01:16:17,856 INFO L87 Difference]: Start difference. First operand 3404 states and 4552 transitions. Second operand has 3 states, 3 states have (on average 10.666666666666666) internal successors, (32), 3 states have internal predecessors, (32), 3 states have call successors, (13), 3 states have call predecessors, (13), 2 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2023-04-01 01:16:18,775 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-01 01:16:18,775 INFO L93 Difference]: Finished difference Result 6947 states and 9311 transitions. [2023-04-01 01:16:18,776 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-04-01 01:16:18,776 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 10.666666666666666) internal successors, (32), 3 states have internal predecessors, (32), 3 states have call successors, (13), 3 states have call predecessors, (13), 2 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 58 [2023-04-01 01:16:18,776 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-01 01:16:18,811 INFO L225 Difference]: With dead ends: 6947 [2023-04-01 01:16:18,811 INFO L226 Difference]: Without dead ends: 5162 [2023-04-01 01:16:18,822 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-04-01 01:16:18,823 INFO L413 NwaCegarLoop]: 1086 mSDtfsCounter, 1201 mSDsluCounter, 1041 mSDsCounter, 0 mSdLazyCounter, 377 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1201 SdHoareTripleChecker+Valid, 2127 SdHoareTripleChecker+Invalid, 379 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 377 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-04-01 01:16:18,823 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1201 Valid, 2127 Invalid, 379 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 377 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-04-01 01:16:18,830 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5162 states. [2023-04-01 01:16:19,120 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5162 to 5151. [2023-04-01 01:16:19,130 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5151 states, 3025 states have (on average 1.2545454545454546) internal successors, (3795), 3173 states have internal predecessors, (3795), 1554 states have call successors, (1554), 584 states have call predecessors, (1554), 571 states have return successors, (1551), 1467 states have call predecessors, (1551), 1545 states have call successors, (1551) [2023-04-01 01:16:19,161 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5151 states to 5151 states and 6900 transitions. [2023-04-01 01:16:19,162 INFO L78 Accepts]: Start accepts. Automaton has 5151 states and 6900 transitions. Word has length 58 [2023-04-01 01:16:19,162 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-01 01:16:19,162 INFO L495 AbstractCegarLoop]: Abstraction has 5151 states and 6900 transitions. [2023-04-01 01:16:19,163 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 10.666666666666666) internal successors, (32), 3 states have internal predecessors, (32), 3 states have call successors, (13), 3 states have call predecessors, (13), 2 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2023-04-01 01:16:19,163 INFO L276 IsEmpty]: Start isEmpty. Operand 5151 states and 6900 transitions. [2023-04-01 01:16:19,165 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2023-04-01 01:16:19,165 INFO L187 NwaCegarLoop]: Found error trace [2023-04-01 01:16:19,165 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-01 01:16:19,165 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-04-01 01:16:19,165 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-01 01:16:19,166 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-01 01:16:19,166 INFO L85 PathProgramCache]: Analyzing trace with hash -605067323, now seen corresponding path program 1 times [2023-04-01 01:16:19,166 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-01 01:16:19,166 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [62883199] [2023-04-01 01:16:19,166 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-01 01:16:19,166 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-01 01:16:19,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 01:16:19,457 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-04-01 01:16:19,457 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-01 01:16:19,457 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [62883199] [2023-04-01 01:16:19,457 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [62883199] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-01 01:16:19,457 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-01 01:16:19,457 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-04-01 01:16:19,458 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1023479317] [2023-04-01 01:16:19,458 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-01 01:16:19,458 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-04-01 01:16:19,458 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-01 01:16:19,459 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-04-01 01:16:19,459 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-04-01 01:16:19,459 INFO L87 Difference]: Start difference. First operand 5151 states and 6900 transitions. Second operand has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 3 states have call successors, (13), 3 states have call predecessors, (13), 2 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2023-04-01 01:16:20,608 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-01 01:16:20,609 INFO L93 Difference]: Finished difference Result 8445 states and 11424 transitions. [2023-04-01 01:16:20,609 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-04-01 01:16:20,609 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 3 states have call successors, (13), 3 states have call predecessors, (13), 2 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 59 [2023-04-01 01:16:20,610 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-01 01:16:20,662 INFO L225 Difference]: With dead ends: 8445 [2023-04-01 01:16:20,662 INFO L226 Difference]: Without dead ends: 8442 [2023-04-01 01:16:20,669 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-04-01 01:16:20,672 INFO L413 NwaCegarLoop]: 1087 mSDtfsCounter, 1180 mSDsluCounter, 1053 mSDsCounter, 0 mSdLazyCounter, 374 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1180 SdHoareTripleChecker+Valid, 2140 SdHoareTripleChecker+Invalid, 375 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 374 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-04-01 01:16:20,673 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1180 Valid, 2140 Invalid, 375 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 374 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-04-01 01:16:20,684 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8442 states. [2023-04-01 01:16:21,091 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8442 to 8417. [2023-04-01 01:16:21,108 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8417 states, 4945 states have (on average 1.2562184024266936) internal successors, (6212), 5197 states have internal predecessors, (6212), 2544 states have call successors, (2544), 954 states have call predecessors, (2544), 927 states have return successors, (2633), 2387 states have call predecessors, (2633), 2533 states have call successors, (2633) [2023-04-01 01:16:21,150 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8417 states to 8417 states and 11389 transitions. [2023-04-01 01:16:21,151 INFO L78 Accepts]: Start accepts. Automaton has 8417 states and 11389 transitions. Word has length 59 [2023-04-01 01:16:21,152 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-01 01:16:21,152 INFO L495 AbstractCegarLoop]: Abstraction has 8417 states and 11389 transitions. [2023-04-01 01:16:21,152 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 3 states have call successors, (13), 3 states have call predecessors, (13), 2 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2023-04-01 01:16:21,152 INFO L276 IsEmpty]: Start isEmpty. Operand 8417 states and 11389 transitions. [2023-04-01 01:16:21,156 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2023-04-01 01:16:21,156 INFO L187 NwaCegarLoop]: Found error trace [2023-04-01 01:16:21,156 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-01 01:16:21,156 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-04-01 01:16:21,156 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-01 01:16:21,157 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-01 01:16:21,157 INFO L85 PathProgramCache]: Analyzing trace with hash -1577929562, now seen corresponding path program 1 times [2023-04-01 01:16:21,157 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-01 01:16:21,157 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [503138618] [2023-04-01 01:16:21,157 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-01 01:16:21,157 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-01 01:16:21,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 01:16:21,359 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-04-01 01:16:21,359 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-01 01:16:21,359 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [503138618] [2023-04-01 01:16:21,360 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [503138618] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-01 01:16:21,360 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-01 01:16:21,360 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-04-01 01:16:21,360 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1553524334] [2023-04-01 01:16:21,360 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-01 01:16:21,361 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-04-01 01:16:21,361 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-01 01:16:21,361 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-04-01 01:16:21,362 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-04-01 01:16:21,368 INFO L87 Difference]: Start difference. First operand 8417 states and 11389 transitions. Second operand has 3 states, 3 states have (on average 11.333333333333334) internal successors, (34), 3 states have internal predecessors, (34), 3 states have call successors, (13), 3 states have call predecessors, (13), 2 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2023-04-01 01:16:22,006 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-01 01:16:22,007 INFO L93 Difference]: Finished difference Result 8419 states and 11390 transitions. [2023-04-01 01:16:22,007 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-04-01 01:16:22,008 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 11.333333333333334) internal successors, (34), 3 states have internal predecessors, (34), 3 states have call successors, (13), 3 states have call predecessors, (13), 2 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 60 [2023-04-01 01:16:22,009 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-01 01:16:22,068 INFO L225 Difference]: With dead ends: 8419 [2023-04-01 01:16:22,069 INFO L226 Difference]: Without dead ends: 8416 [2023-04-01 01:16:22,077 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-04-01 01:16:22,078 INFO L413 NwaCegarLoop]: 1058 mSDtfsCounter, 1218 mSDsluCounter, 1 mSDsCounter, 0 mSdLazyCounter, 186 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1218 SdHoareTripleChecker+Valid, 1059 SdHoareTripleChecker+Invalid, 186 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 186 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-04-01 01:16:22,078 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1218 Valid, 1059 Invalid, 186 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 186 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-04-01 01:16:22,088 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8416 states. [2023-04-01 01:16:22,557 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8416 to 8416. [2023-04-01 01:16:22,571 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8416 states, 4945 states have (on average 1.256016177957533) internal successors, (6211), 5196 states have internal predecessors, (6211), 2543 states have call successors, (2543), 954 states have call predecessors, (2543), 927 states have return successors, (2633), 2387 states have call predecessors, (2633), 2533 states have call successors, (2633) [2023-04-01 01:16:22,610 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8416 states to 8416 states and 11387 transitions. [2023-04-01 01:16:22,611 INFO L78 Accepts]: Start accepts. Automaton has 8416 states and 11387 transitions. Word has length 60 [2023-04-01 01:16:22,613 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-01 01:16:22,613 INFO L495 AbstractCegarLoop]: Abstraction has 8416 states and 11387 transitions. [2023-04-01 01:16:22,613 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.333333333333334) internal successors, (34), 3 states have internal predecessors, (34), 3 states have call successors, (13), 3 states have call predecessors, (13), 2 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2023-04-01 01:16:22,613 INFO L276 IsEmpty]: Start isEmpty. Operand 8416 states and 11387 transitions. [2023-04-01 01:16:22,615 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2023-04-01 01:16:22,615 INFO L187 NwaCegarLoop]: Found error trace [2023-04-01 01:16:22,615 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-01 01:16:22,615 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-04-01 01:16:22,615 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-01 01:16:22,616 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-01 01:16:22,616 INFO L85 PathProgramCache]: Analyzing trace with hash -1671883032, now seen corresponding path program 1 times [2023-04-01 01:16:22,618 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-01 01:16:22,619 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1983261445] [2023-04-01 01:16:22,619 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-01 01:16:22,619 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-01 01:16:22,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 01:16:22,774 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-04-01 01:16:22,774 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-01 01:16:22,774 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1983261445] [2023-04-01 01:16:22,775 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1983261445] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-01 01:16:22,775 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-01 01:16:22,775 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-04-01 01:16:22,775 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [851076512] [2023-04-01 01:16:22,775 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-01 01:16:22,775 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-04-01 01:16:22,775 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-01 01:16:22,776 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-04-01 01:16:22,776 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-04-01 01:16:22,776 INFO L87 Difference]: Start difference. First operand 8416 states and 11387 transitions. Second operand has 3 states, 3 states have (on average 11.666666666666666) internal successors, (35), 3 states have internal predecessors, (35), 3 states have call successors, (13), 3 states have call predecessors, (13), 2 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2023-04-01 01:16:23,455 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-01 01:16:23,455 INFO L93 Difference]: Finished difference Result 8418 states and 11388 transitions. [2023-04-01 01:16:23,456 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-04-01 01:16:23,456 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 11.666666666666666) internal successors, (35), 3 states have internal predecessors, (35), 3 states have call successors, (13), 3 states have call predecessors, (13), 2 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 61 [2023-04-01 01:16:23,456 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-01 01:16:23,498 INFO L225 Difference]: With dead ends: 8418 [2023-04-01 01:16:23,498 INFO L226 Difference]: Without dead ends: 8398 [2023-04-01 01:16:23,505 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-04-01 01:16:23,506 INFO L413 NwaCegarLoop]: 1057 mSDtfsCounter, 1215 mSDsluCounter, 1 mSDsCounter, 0 mSdLazyCounter, 185 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1215 SdHoareTripleChecker+Valid, 1058 SdHoareTripleChecker+Invalid, 185 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 185 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-04-01 01:16:23,506 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1215 Valid, 1058 Invalid, 185 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 185 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-04-01 01:16:23,516 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8398 states. [2023-04-01 01:16:24,010 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8398 to 8398. [2023-04-01 01:16:24,023 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8398 states, 4935 states have (on average 1.2557244174265452) internal successors, (6197), 5185 states have internal predecessors, (6197), 2538 states have call successors, (2538), 950 states have call predecessors, (2538), 924 states have return successors, (2630), 2384 states have call predecessors, (2630), 2530 states have call successors, (2630) [2023-04-01 01:16:24,064 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8398 states to 8398 states and 11365 transitions. [2023-04-01 01:16:24,064 INFO L78 Accepts]: Start accepts. Automaton has 8398 states and 11365 transitions. Word has length 61 [2023-04-01 01:16:24,064 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-01 01:16:24,065 INFO L495 AbstractCegarLoop]: Abstraction has 8398 states and 11365 transitions. [2023-04-01 01:16:24,065 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.666666666666666) internal successors, (35), 3 states have internal predecessors, (35), 3 states have call successors, (13), 3 states have call predecessors, (13), 2 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2023-04-01 01:16:24,065 INFO L276 IsEmpty]: Start isEmpty. Operand 8398 states and 11365 transitions. [2023-04-01 01:16:24,079 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2023-04-01 01:16:24,080 INFO L187 NwaCegarLoop]: Found error trace [2023-04-01 01:16:24,080 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-01 01:16:24,080 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-04-01 01:16:24,080 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-01 01:16:24,081 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-01 01:16:24,081 INFO L85 PathProgramCache]: Analyzing trace with hash -796985530, now seen corresponding path program 1 times [2023-04-01 01:16:24,081 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-01 01:16:24,081 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1681050654] [2023-04-01 01:16:24,081 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-01 01:16:24,082 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-01 01:16:24,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 01:16:24,286 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2023-04-01 01:16:24,287 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-01 01:16:24,287 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1681050654] [2023-04-01 01:16:24,287 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1681050654] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-01 01:16:24,287 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-01 01:16:24,287 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-04-01 01:16:24,287 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [4778950] [2023-04-01 01:16:24,288 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-01 01:16:24,289 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-04-01 01:16:24,289 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-01 01:16:24,289 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-04-01 01:16:24,289 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-04-01 01:16:24,290 INFO L87 Difference]: Start difference. First operand 8398 states and 11365 transitions. Second operand has 3 states, 3 states have (on average 29.333333333333332) internal successors, (88), 3 states have internal predecessors, (88), 2 states have call successors, (31), 2 states have call predecessors, (31), 1 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) [2023-04-01 01:16:25,156 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-01 01:16:25,157 INFO L93 Difference]: Finished difference Result 13111 states and 17729 transitions. [2023-04-01 01:16:25,157 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-04-01 01:16:25,157 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 29.333333333333332) internal successors, (88), 3 states have internal predecessors, (88), 2 states have call successors, (31), 2 states have call predecessors, (31), 1 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) Word has length 152 [2023-04-01 01:16:25,158 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-01 01:16:25,182 INFO L225 Difference]: With dead ends: 13111 [2023-04-01 01:16:25,182 INFO L226 Difference]: Without dead ends: 4742 [2023-04-01 01:16:25,215 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-04-01 01:16:25,216 INFO L413 NwaCegarLoop]: 1064 mSDtfsCounter, 131 mSDsluCounter, 1017 mSDsCounter, 0 mSdLazyCounter, 385 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 131 SdHoareTripleChecker+Valid, 2081 SdHoareTripleChecker+Invalid, 388 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 385 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-04-01 01:16:25,216 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [131 Valid, 2081 Invalid, 388 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 385 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-04-01 01:16:25,222 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4742 states. [2023-04-01 01:16:25,462 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4742 to 4658. [2023-04-01 01:16:25,469 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4658 states, 2769 states have (on average 1.2726616106897797) internal successors, (3524), 2925 states have internal predecessors, (3524), 1360 states have call successors, (1360), 544 states have call predecessors, (1360), 528 states have return successors, (1402), 1261 states have call predecessors, (1402), 1352 states have call successors, (1402) [2023-04-01 01:16:25,489 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4658 states to 4658 states and 6286 transitions. [2023-04-01 01:16:25,492 INFO L78 Accepts]: Start accepts. Automaton has 4658 states and 6286 transitions. Word has length 152 [2023-04-01 01:16:25,492 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-01 01:16:25,492 INFO L495 AbstractCegarLoop]: Abstraction has 4658 states and 6286 transitions. [2023-04-01 01:16:25,492 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 29.333333333333332) internal successors, (88), 3 states have internal predecessors, (88), 2 states have call successors, (31), 2 states have call predecessors, (31), 1 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) [2023-04-01 01:16:25,493 INFO L276 IsEmpty]: Start isEmpty. Operand 4658 states and 6286 transitions. [2023-04-01 01:16:25,499 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 170 [2023-04-01 01:16:25,499 INFO L187 NwaCegarLoop]: Found error trace [2023-04-01 01:16:25,500 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-01 01:16:25,500 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-04-01 01:16:25,500 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-01 01:16:25,500 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-01 01:16:25,501 INFO L85 PathProgramCache]: Analyzing trace with hash 942227060, now seen corresponding path program 1 times [2023-04-01 01:16:25,501 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-01 01:16:25,501 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [436164720] [2023-04-01 01:16:25,501 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-01 01:16:25,501 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-01 01:16:25,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 01:16:25,810 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2023-04-01 01:16:25,810 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-01 01:16:25,810 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [436164720] [2023-04-01 01:16:25,810 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [436164720] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-01 01:16:25,811 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-01 01:16:25,811 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-04-01 01:16:25,811 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1945953553] [2023-04-01 01:16:25,811 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-01 01:16:25,811 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-04-01 01:16:25,811 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-01 01:16:25,812 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-04-01 01:16:25,812 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-04-01 01:16:25,812 INFO L87 Difference]: Start difference. First operand 4658 states and 6286 transitions. Second operand has 3 states, 3 states have (on average 33.0) internal successors, (99), 3 states have internal predecessors, (99), 3 states have call successors, (34), 2 states have call predecessors, (34), 2 states have return successors, (31), 3 states have call predecessors, (31), 3 states have call successors, (31) [2023-04-01 01:16:26,824 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-01 01:16:26,824 INFO L93 Difference]: Finished difference Result 11343 states and 15309 transitions. [2023-04-01 01:16:26,824 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-04-01 01:16:26,825 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 33.0) internal successors, (99), 3 states have internal predecessors, (99), 3 states have call successors, (34), 2 states have call predecessors, (34), 2 states have return successors, (31), 3 states have call predecessors, (31), 3 states have call successors, (31) Word has length 169 [2023-04-01 01:16:26,825 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-01 01:16:26,860 INFO L225 Difference]: With dead ends: 11343 [2023-04-01 01:16:26,860 INFO L226 Difference]: Without dead ends: 6771 [2023-04-01 01:16:26,884 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-04-01 01:16:26,885 INFO L413 NwaCegarLoop]: 1650 mSDtfsCounter, 1109 mSDsluCounter, 792 mSDsCounter, 0 mSdLazyCounter, 432 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1109 SdHoareTripleChecker+Valid, 2442 SdHoareTripleChecker+Invalid, 441 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 432 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-04-01 01:16:26,885 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1109 Valid, 2442 Invalid, 441 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 432 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-04-01 01:16:26,894 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6771 states. [2023-04-01 01:16:27,277 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6771 to 6687. [2023-04-01 01:16:27,287 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6687 states, 3992 states have (on average 1.2732965931863727) internal successors, (5083), 4221 states have internal predecessors, (5083), 1925 states have call successors, (1925), 786 states have call predecessors, (1925), 769 states have return successors, (1984), 1786 states have call predecessors, (1984), 1917 states have call successors, (1984) [2023-04-01 01:16:27,311 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6687 states to 6687 states and 8992 transitions. [2023-04-01 01:16:27,312 INFO L78 Accepts]: Start accepts. Automaton has 6687 states and 8992 transitions. Word has length 169 [2023-04-01 01:16:27,312 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-01 01:16:27,313 INFO L495 AbstractCegarLoop]: Abstraction has 6687 states and 8992 transitions. [2023-04-01 01:16:27,313 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 33.0) internal successors, (99), 3 states have internal predecessors, (99), 3 states have call successors, (34), 2 states have call predecessors, (34), 2 states have return successors, (31), 3 states have call predecessors, (31), 3 states have call successors, (31) [2023-04-01 01:16:27,313 INFO L276 IsEmpty]: Start isEmpty. Operand 6687 states and 8992 transitions. [2023-04-01 01:16:27,318 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 193 [2023-04-01 01:16:27,318 INFO L187 NwaCegarLoop]: Found error trace [2023-04-01 01:16:27,319 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-01 01:16:27,319 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-04-01 01:16:27,319 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-01 01:16:27,319 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-01 01:16:27,320 INFO L85 PathProgramCache]: Analyzing trace with hash -1938014808, now seen corresponding path program 1 times [2023-04-01 01:16:27,320 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-01 01:16:27,320 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1199592516] [2023-04-01 01:16:27,320 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-01 01:16:27,320 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-01 01:16:27,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 01:16:28,187 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 8 proven. 4 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2023-04-01 01:16:28,188 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-01 01:16:28,188 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1199592516] [2023-04-01 01:16:28,188 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1199592516] provided 0 perfect and 1 imperfect interpolant sequences [2023-04-01 01:16:28,188 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1349240315] [2023-04-01 01:16:28,188 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-01 01:16:28,188 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-01 01:16:28,188 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-01 01:16:28,191 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-04-01 01:16:28,192 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-04-01 01:16:29,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 01:16:29,098 INFO L262 TraceCheckSpWp]: Trace formula consists of 3451 conjuncts, 63 conjunts are in the unsatisfiable core [2023-04-01 01:16:29,112 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-04-01 01:16:29,479 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 23 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2023-04-01 01:16:29,479 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-04-01 01:16:29,480 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1349240315] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-01 01:16:29,480 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-04-01 01:16:29,480 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [5] total 17 [2023-04-01 01:16:29,480 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1168887832] [2023-04-01 01:16:29,480 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-01 01:16:29,481 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-04-01 01:16:29,481 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-01 01:16:29,481 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-04-01 01:16:29,481 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=231, Unknown=0, NotChecked=0, Total=272 [2023-04-01 01:16:29,482 INFO L87 Difference]: Start difference. First operand 6687 states and 8992 transitions. Second operand has 14 states, 11 states have (on average 10.454545454545455) internal successors, (115), 9 states have internal predecessors, (115), 3 states have call successors, (38), 3 states have call predecessors, (38), 8 states have return successors, (35), 8 states have call predecessors, (35), 3 states have call successors, (35) [2023-04-01 01:16:36,715 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-01 01:16:36,716 INFO L93 Difference]: Finished difference Result 19996 states and 26963 transitions. [2023-04-01 01:16:36,717 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2023-04-01 01:16:36,717 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 11 states have (on average 10.454545454545455) internal successors, (115), 9 states have internal predecessors, (115), 3 states have call successors, (38), 3 states have call predecessors, (38), 8 states have return successors, (35), 8 states have call predecessors, (35), 3 states have call successors, (35) Word has length 192 [2023-04-01 01:16:36,718 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-01 01:16:36,781 INFO L225 Difference]: With dead ends: 19996 [2023-04-01 01:16:36,781 INFO L226 Difference]: Without dead ends: 13395 [2023-04-01 01:16:36,813 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 199 GetRequests, 182 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=49, Invalid=293, Unknown=0, NotChecked=0, Total=342 [2023-04-01 01:16:36,815 INFO L413 NwaCegarLoop]: 1353 mSDtfsCounter, 1205 mSDsluCounter, 9683 mSDsCounter, 0 mSdLazyCounter, 7951 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1215 SdHoareTripleChecker+Valid, 11036 SdHoareTripleChecker+Invalid, 7952 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 7951 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.4s IncrementalHoareTripleChecker+Time [2023-04-01 01:16:36,815 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1215 Valid, 11036 Invalid, 7952 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1 Valid, 7951 Invalid, 0 Unknown, 0 Unchecked, 6.4s Time] [2023-04-01 01:16:36,832 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13395 states. [2023-04-01 01:16:37,646 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13395 to 12907. [2023-04-01 01:16:37,667 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12907 states, 7687 states have (on average 1.268245089111487) internal successors, (9749), 8116 states have internal predecessors, (9749), 3728 states have call successors, (3728), 1476 states have call predecessors, (3728), 1491 states have return successors, (3925), 3516 states have call predecessors, (3925), 3720 states have call successors, (3925) [2023-04-01 01:16:37,718 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12907 states to 12907 states and 17402 transitions. [2023-04-01 01:16:37,721 INFO L78 Accepts]: Start accepts. Automaton has 12907 states and 17402 transitions. Word has length 192 [2023-04-01 01:16:37,723 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-01 01:16:37,723 INFO L495 AbstractCegarLoop]: Abstraction has 12907 states and 17402 transitions. [2023-04-01 01:16:37,723 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 11 states have (on average 10.454545454545455) internal successors, (115), 9 states have internal predecessors, (115), 3 states have call successors, (38), 3 states have call predecessors, (38), 8 states have return successors, (35), 8 states have call predecessors, (35), 3 states have call successors, (35) [2023-04-01 01:16:37,723 INFO L276 IsEmpty]: Start isEmpty. Operand 12907 states and 17402 transitions. [2023-04-01 01:16:37,733 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 197 [2023-04-01 01:16:37,733 INFO L187 NwaCegarLoop]: Found error trace [2023-04-01 01:16:37,733 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-01 01:16:37,754 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-04-01 01:16:37,952 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-01 01:16:37,953 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-01 01:16:37,953 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-01 01:16:37,953 INFO L85 PathProgramCache]: Analyzing trace with hash 593516691, now seen corresponding path program 1 times [2023-04-01 01:16:37,953 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-01 01:16:37,954 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [530292972] [2023-04-01 01:16:37,954 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-01 01:16:37,954 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-01 01:16:38,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 01:16:38,795 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 8 proven. 4 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2023-04-01 01:16:38,795 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-01 01:16:38,795 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [530292972] [2023-04-01 01:16:38,795 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [530292972] provided 0 perfect and 1 imperfect interpolant sequences [2023-04-01 01:16:38,796 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [880747199] [2023-04-01 01:16:38,796 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-01 01:16:38,796 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-01 01:16:38,796 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-01 01:16:38,797 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-04-01 01:16:38,800 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-04-01 01:16:39,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 01:16:39,693 INFO L262 TraceCheckSpWp]: Trace formula consists of 3476 conjuncts, 11 conjunts are in the unsatisfiable core [2023-04-01 01:16:39,701 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-04-01 01:16:39,754 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2023-04-01 01:16:39,755 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-04-01 01:16:39,755 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [880747199] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-01 01:16:39,755 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-04-01 01:16:39,755 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [5] total 7 [2023-04-01 01:16:39,755 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1388348631] [2023-04-01 01:16:39,755 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-01 01:16:39,756 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-04-01 01:16:39,756 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-01 01:16:39,757 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-04-01 01:16:39,757 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-04-01 01:16:39,757 INFO L87 Difference]: Start difference. First operand 12907 states and 17402 transitions. Second operand has 4 states, 4 states have (on average 28.0) internal successors, (112), 4 states have internal predecessors, (112), 2 states have call successors, (39), 2 states have call predecessors, (39), 3 states have return successors, (36), 2 states have call predecessors, (36), 2 states have call successors, (36) [2023-04-01 01:16:41,136 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-01 01:16:41,136 INFO L93 Difference]: Finished difference Result 25748 states and 34742 transitions. [2023-04-01 01:16:41,137 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-04-01 01:16:41,137 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 28.0) internal successors, (112), 4 states have internal predecessors, (112), 2 states have call successors, (39), 2 states have call predecessors, (39), 3 states have return successors, (36), 2 states have call predecessors, (36), 2 states have call successors, (36) Word has length 196 [2023-04-01 01:16:41,138 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-01 01:16:41,198 INFO L225 Difference]: With dead ends: 25748 [2023-04-01 01:16:41,199 INFO L226 Difference]: Without dead ends: 12907 [2023-04-01 01:16:41,254 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 202 GetRequests, 196 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2023-04-01 01:16:41,255 INFO L413 NwaCegarLoop]: 1052 mSDtfsCounter, 4 mSDsluCounter, 2098 mSDsCounter, 0 mSdLazyCounter, 564 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 3150 SdHoareTripleChecker+Invalid, 564 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 564 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-04-01 01:16:41,256 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 3150 Invalid, 564 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 564 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-04-01 01:16:41,269 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12907 states. [2023-04-01 01:16:42,058 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12907 to 12907. [2023-04-01 01:16:42,079 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12907 states, 7687 states have (on average 1.2669441914921296) internal successors, (9739), 8106 states have internal predecessors, (9739), 3728 states have call successors, (3728), 1476 states have call predecessors, (3728), 1491 states have return successors, (3925), 3516 states have call predecessors, (3925), 3720 states have call successors, (3925) [2023-04-01 01:16:42,134 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12907 states to 12907 states and 17392 transitions. [2023-04-01 01:16:42,138 INFO L78 Accepts]: Start accepts. Automaton has 12907 states and 17392 transitions. Word has length 196 [2023-04-01 01:16:42,138 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-01 01:16:42,138 INFO L495 AbstractCegarLoop]: Abstraction has 12907 states and 17392 transitions. [2023-04-01 01:16:42,138 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 28.0) internal successors, (112), 4 states have internal predecessors, (112), 2 states have call successors, (39), 2 states have call predecessors, (39), 3 states have return successors, (36), 2 states have call predecessors, (36), 2 states have call successors, (36) [2023-04-01 01:16:42,139 INFO L276 IsEmpty]: Start isEmpty. Operand 12907 states and 17392 transitions. [2023-04-01 01:16:42,148 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 200 [2023-04-01 01:16:42,149 INFO L187 NwaCegarLoop]: Found error trace [2023-04-01 01:16:42,149 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-01 01:16:42,166 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-04-01 01:16:42,362 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2023-04-01 01:16:42,363 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-01 01:16:42,363 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-01 01:16:42,363 INFO L85 PathProgramCache]: Analyzing trace with hash 1949998428, now seen corresponding path program 1 times [2023-04-01 01:16:42,363 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-01 01:16:42,363 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [222696200] [2023-04-01 01:16:42,363 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-01 01:16:42,364 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-01 01:16:42,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 01:16:43,251 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 8 proven. 4 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2023-04-01 01:16:43,252 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-01 01:16:43,252 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [222696200] [2023-04-01 01:16:43,252 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [222696200] provided 0 perfect and 1 imperfect interpolant sequences [2023-04-01 01:16:43,252 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1604633278] [2023-04-01 01:16:43,252 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-01 01:16:43,252 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-01 01:16:43,253 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-01 01:16:43,254 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-04-01 01:16:43,257 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-04-01 01:16:44,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 01:16:44,199 INFO L262 TraceCheckSpWp]: Trace formula consists of 3581 conjuncts, 14 conjunts are in the unsatisfiable core [2023-04-01 01:16:44,205 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-04-01 01:16:44,261 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2023-04-01 01:16:44,261 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-04-01 01:16:44,262 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1604633278] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-01 01:16:44,262 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-04-01 01:16:44,262 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [5] total 7 [2023-04-01 01:16:44,262 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [691256983] [2023-04-01 01:16:44,262 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-01 01:16:44,263 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-04-01 01:16:44,263 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-01 01:16:44,263 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-04-01 01:16:44,263 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-04-01 01:16:44,264 INFO L87 Difference]: Start difference. First operand 12907 states and 17392 transitions. Second operand has 4 states, 3 states have (on average 36.333333333333336) internal successors, (109), 4 states have internal predecessors, (109), 2 states have call successors, (40), 2 states have call predecessors, (40), 3 states have return successors, (37), 2 states have call predecessors, (37), 2 states have call successors, (37) [2023-04-01 01:16:45,432 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-01 01:16:45,433 INFO L93 Difference]: Finished difference Result 25790 states and 34759 transitions. [2023-04-01 01:16:45,433 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-04-01 01:16:45,434 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 36.333333333333336) internal successors, (109), 4 states have internal predecessors, (109), 2 states have call successors, (40), 2 states have call predecessors, (40), 3 states have return successors, (37), 2 states have call predecessors, (37), 2 states have call successors, (37) Word has length 199 [2023-04-01 01:16:45,434 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-01 01:16:45,484 INFO L225 Difference]: With dead ends: 25790 [2023-04-01 01:16:45,484 INFO L226 Difference]: Without dead ends: 12908 [2023-04-01 01:16:45,522 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 205 GetRequests, 199 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2023-04-01 01:16:45,523 INFO L413 NwaCegarLoop]: 1053 mSDtfsCounter, 1 mSDsluCounter, 2104 mSDsCounter, 0 mSdLazyCounter, 559 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 3157 SdHoareTripleChecker+Invalid, 559 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 559 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-04-01 01:16:45,523 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 3157 Invalid, 559 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 559 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-04-01 01:16:45,535 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12908 states. [2023-04-01 01:16:46,383 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12908 to 12908. [2023-04-01 01:16:46,396 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12908 states, 7688 states have (on average 1.2669094693028096) internal successors, (9740), 8107 states have internal predecessors, (9740), 3728 states have call successors, (3728), 1476 states have call predecessors, (3728), 1491 states have return successors, (3925), 3516 states have call predecessors, (3925), 3720 states have call successors, (3925) [2023-04-01 01:16:46,435 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12908 states to 12908 states and 17393 transitions. [2023-04-01 01:16:46,440 INFO L78 Accepts]: Start accepts. Automaton has 12908 states and 17393 transitions. Word has length 199 [2023-04-01 01:16:46,440 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-01 01:16:46,440 INFO L495 AbstractCegarLoop]: Abstraction has 12908 states and 17393 transitions. [2023-04-01 01:16:46,440 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 36.333333333333336) internal successors, (109), 4 states have internal predecessors, (109), 2 states have call successors, (40), 2 states have call predecessors, (40), 3 states have return successors, (37), 2 states have call predecessors, (37), 2 states have call successors, (37) [2023-04-01 01:16:46,441 INFO L276 IsEmpty]: Start isEmpty. Operand 12908 states and 17393 transitions. [2023-04-01 01:16:46,451 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 201 [2023-04-01 01:16:46,451 INFO L187 NwaCegarLoop]: Found error trace [2023-04-01 01:16:46,451 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-01 01:16:46,468 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-04-01 01:16:46,666 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-01 01:16:46,667 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-01 01:16:46,667 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-01 01:16:46,667 INFO L85 PathProgramCache]: Analyzing trace with hash -309978027, now seen corresponding path program 1 times [2023-04-01 01:16:46,668 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-01 01:16:46,668 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1004971990] [2023-04-01 01:16:46,668 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-01 01:16:46,668 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-01 01:16:46,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 01:16:47,388 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 8 proven. 4 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2023-04-01 01:16:47,388 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-01 01:16:47,388 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1004971990] [2023-04-01 01:16:47,388 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1004971990] provided 0 perfect and 1 imperfect interpolant sequences [2023-04-01 01:16:47,388 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [254693709] [2023-04-01 01:16:47,389 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-01 01:16:47,389 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-01 01:16:47,389 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-01 01:16:47,390 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-04-01 01:16:47,393 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-04-01 01:16:48,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 01:16:48,384 INFO L262 TraceCheckSpWp]: Trace formula consists of 3596 conjuncts, 7 conjunts are in the unsatisfiable core [2023-04-01 01:16:48,392 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-04-01 01:16:48,428 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 4 proven. 1 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2023-04-01 01:16:48,428 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-04-01 01:16:48,716 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2023-04-01 01:16:48,716 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [254693709] provided 0 perfect and 2 imperfect interpolant sequences [2023-04-01 01:16:48,717 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [753869990] [2023-04-01 01:16:48,746 INFO L159 IcfgInterpreter]: Started Sifa with 176 locations of interest [2023-04-01 01:16:48,747 INFO L166 IcfgInterpreter]: Building call graph [2023-04-01 01:16:48,752 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2023-04-01 01:16:48,756 INFO L176 IcfgInterpreter]: Starting interpretation [2023-04-01 01:16:48,757 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs