/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/default/taipan/svcomp-Reach-32bit-Taipan_Default.epf -tc ../../../trunk/examples/toolchains/AutomizerC.xml --sifa.abstract.domain OctagonDomain -i ../sv-benchmarks/c/ldv-linux-3.12-rc1/linux-3.12-rc1.tar.xz-144_2a-drivers--usb--class--cdc-acm.ko-entry_point.cil.out.i -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-f954360 [2023-04-03 04:45:04,000 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-04-03 04:45:04,002 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-04-03 04:45:04,028 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-04-03 04:45:04,029 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-04-03 04:45:04,029 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-04-03 04:45:04,030 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-04-03 04:45:04,032 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-04-03 04:45:04,033 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-04-03 04:45:04,034 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-04-03 04:45:04,034 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-04-03 04:45:04,035 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-04-03 04:45:04,035 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-04-03 04:45:04,036 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-04-03 04:45:04,037 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-04-03 04:45:04,038 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-04-03 04:45:04,039 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-04-03 04:45:04,040 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-04-03 04:45:04,041 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-04-03 04:45:04,044 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-04-03 04:45:04,045 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-04-03 04:45:04,046 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-04-03 04:45:04,047 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-04-03 04:45:04,048 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-04-03 04:45:04,051 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-04-03 04:45:04,051 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-04-03 04:45:04,051 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-04-03 04:45:04,052 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-04-03 04:45:04,052 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-04-03 04:45:04,053 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-04-03 04:45:04,053 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-04-03 04:45:04,054 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-04-03 04:45:04,055 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-04-03 04:45:04,055 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-04-03 04:45:04,056 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-04-03 04:45:04,056 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-04-03 04:45:04,057 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-04-03 04:45:04,057 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-04-03 04:45:04,057 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-04-03 04:45:04,058 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-04-03 04:45:04,059 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-04-03 04:45:04,060 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/taipan/svcomp-Reach-32bit-Taipan_Default.epf [2023-04-03 04:45:04,080 INFO L113 SettingsManager]: Loading preferences was successful [2023-04-03 04:45:04,087 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-04-03 04:45:04,087 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-04-03 04:45:04,087 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-04-03 04:45:04,088 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-04-03 04:45:04,089 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-04-03 04:45:04,089 INFO L138 SettingsManager]: * User list type=DISABLED [2023-04-03 04:45:04,089 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-04-03 04:45:04,089 INFO L138 SettingsManager]: * Explicit value domain=true [2023-04-03 04:45:04,089 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-04-03 04:45:04,090 INFO L138 SettingsManager]: * Octagon Domain=false [2023-04-03 04:45:04,090 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2023-04-03 04:45:04,090 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-04-03 04:45:04,090 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-04-03 04:45:04,090 INFO L138 SettingsManager]: * Interval Domain=false [2023-04-03 04:45:04,090 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-04-03 04:45:04,091 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-04-03 04:45:04,091 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2023-04-03 04:45:04,091 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-04-03 04:45:04,091 INFO L138 SettingsManager]: * sizeof long=4 [2023-04-03 04:45:04,091 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-04-03 04:45:04,091 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-04-03 04:45:04,092 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-04-03 04:45:04,092 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-04-03 04:45:04,092 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-04-03 04:45:04,092 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-04-03 04:45:04,092 INFO L138 SettingsManager]: * sizeof long double=12 [2023-04-03 04:45:04,092 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-04-03 04:45:04,093 INFO L138 SettingsManager]: * Use constant arrays=true [2023-04-03 04:45:04,093 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-04-03 04:45:04,093 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-04-03 04:45:04,093 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-04-03 04:45:04,093 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-04-03 04:45:04,093 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-04-03 04:45:04,093 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2023-04-03 04:45:04,094 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-04-03 04:45:04,094 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-04-03 04:45:04,094 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-04-03 04:45:04,094 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-04-03 04:45:04,094 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-04-03 04:45:04,094 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-04-03 04:45:04,094 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Abstract Domain -> OctagonDomain [2023-04-03 04:45:04,319 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-04-03 04:45:04,341 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-04-03 04:45:04,343 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-04-03 04:45:04,344 INFO L271 PluginConnector]: Initializing CDTParser... [2023-04-03 04:45:04,345 INFO L275 PluginConnector]: CDTParser initialized [2023-04-03 04:45:04,346 INFO L432 ainManager$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--usb--class--cdc-acm.ko-entry_point.cil.out.i [2023-04-03 04:45:05,473 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-04-03 04:45:05,904 INFO L351 CDTParser]: Found 1 translation units. [2023-04-03 04:45:05,905 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--usb--class--cdc-acm.ko-entry_point.cil.out.i [2023-04-03 04:45:05,944 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c41a4f6b8/2b3ae2b92a1b4a85ae6f4805da2ada7d/FLAG0996e57b3 [2023-04-03 04:45:05,958 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c41a4f6b8/2b3ae2b92a1b4a85ae6f4805da2ada7d [2023-04-03 04:45:05,962 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-04-03 04:45:05,963 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2023-04-03 04:45:05,966 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-04-03 04:45:05,966 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-04-03 04:45:05,968 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-04-03 04:45:05,969 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.04 04:45:05" (1/1) ... [2023-04-03 04:45:05,970 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@34ad3ca and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.04 04:45:05, skipping insertion in model container [2023-04-03 04:45:05,970 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.04 04:45:05" (1/1) ... [2023-04-03 04:45:05,976 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-04-03 04:45:06,074 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-04-03 04:45:07,241 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--usb--class--cdc-acm.ko-entry_point.cil.out.i[116401,116414] [2023-04-03 04:45:07,746 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-04-03 04:45:07,803 INFO L203 MainTranslator]: Completed pre-run [2023-04-03 04:45:07,936 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--usb--class--cdc-acm.ko-entry_point.cil.out.i[116401,116414] [2023-04-03 04:45:08,104 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-04-03 04:45:08,263 WARN L667 CHandler]: The function memcmp is called, but not defined or handled by StandardFunctionHandler. [2023-04-03 04:45:08,263 WARN L667 CHandler]: The function __xadd_wrong_size is called, but not defined or handled by StandardFunctionHandler. [2023-04-03 04:45:08,263 WARN L667 CHandler]: The function sprintf is called, but not defined or handled by StandardFunctionHandler. [2023-04-03 04:45:08,269 INFO L208 MainTranslator]: Completed translation [2023-04-03 04:45:08,271 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.04 04:45:08 WrapperNode [2023-04-03 04:45:08,271 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-04-03 04:45:08,272 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-04-03 04:45:08,272 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-04-03 04:45:08,272 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-04-03 04:45:08,281 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.04 04:45:08" (1/1) ... [2023-04-03 04:45:08,282 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.04 04:45:08" (1/1) ... [2023-04-03 04:45:08,371 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.04 04:45:08" (1/1) ... [2023-04-03 04:45:08,372 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.04 04:45:08" (1/1) ... [2023-04-03 04:45:08,489 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.04 04:45:08" (1/1) ... [2023-04-03 04:45:08,513 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.04 04:45:08" (1/1) ... [2023-04-03 04:45:08,536 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.04 04:45:08" (1/1) ... [2023-04-03 04:45:08,558 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.04 04:45:08" (1/1) ... [2023-04-03 04:45:08,590 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-04-03 04:45:08,591 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-04-03 04:45:08,593 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-04-03 04:45:08,593 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-04-03 04:45:08,594 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.04 04:45:08" (1/1) ... [2023-04-03 04:45:08,599 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-04-03 04:45:08,608 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-03 04:45:08,626 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-04-03 04:45:08,635 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-04-03 04:45:08,662 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2023-04-03 04:45:08,662 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-04-03 04:45:08,662 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2023-04-03 04:45:08,662 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2023-04-03 04:45:08,662 INFO L138 BoogieDeclarations]: Found implementation of procedure __le16_to_cpup [2023-04-03 04:45:08,662 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_dir_in [2023-04-03 04:45:08,662 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_dir_out [2023-04-03 04:45:08,663 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_xfer_bulk [2023-04-03 04:45:08,663 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_xfer_int [2023-04-03 04:45:08,663 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_is_bulk_in [2023-04-03 04:45:08,663 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_is_bulk_out [2023-04-03 04:45:08,663 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_is_int_in [2023-04-03 04:45:08,663 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_maxp [2023-04-03 04:45:08,663 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2023-04-03 04:45:08,663 INFO L138 BoogieDeclarations]: Found implementation of procedure __set_bit [2023-04-03 04:45:08,663 INFO L138 BoogieDeclarations]: Found implementation of procedure test_and_clear_bit [2023-04-03 04:45:08,663 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2023-04-03 04:45:08,663 INFO L138 BoogieDeclarations]: Found implementation of procedure PTR_ERR [2023-04-03 04:45:08,663 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2023-04-03 04:45:08,663 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_add_return [2023-04-03 04:45:08,664 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2023-04-03 04:45:08,664 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2023-04-03 04:45:08,664 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2023-04-03 04:45:08,664 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock_irq [2023-04-03 04:45:08,664 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2023-04-03 04:45:08,664 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irq [2023-04-03 04:45:08,664 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2023-04-03 04:45:08,665 INFO L138 BoogieDeclarations]: Found implementation of procedure queue_work [2023-04-03 04:45:08,665 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule_work [2023-04-03 04:45:08,665 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_from_user [2023-04-03 04:45:08,665 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_to_user [2023-04-03 04:45:08,665 INFO L138 BoogieDeclarations]: Found implementation of procedure kref_get [2023-04-03 04:45:08,665 INFO L138 BoogieDeclarations]: Found implementation of procedure pm_runtime_mark_last_busy [2023-04-03 04:45:08,665 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_mark_last_busy [2023-04-03 04:45:08,665 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_interface_claimed [2023-04-03 04:45:08,666 INFO L138 BoogieDeclarations]: Found implementation of procedure __create_pipe [2023-04-03 04:45:08,666 INFO L138 BoogieDeclarations]: Found implementation of procedure alloc_tty_driver [2023-04-03 04:45:08,666 INFO L138 BoogieDeclarations]: Found implementation of procedure tty_get_baud_rate [2023-04-03 04:45:08,666 INFO L138 BoogieDeclarations]: Found implementation of procedure tty_port_get [2023-04-03 04:45:08,666 INFO L138 BoogieDeclarations]: Found implementation of procedure __kmalloc [2023-04-03 04:45:08,666 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2023-04-03 04:45:08,667 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2023-04-03 04:45:08,667 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-04-03 04:45:08,667 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2023-04-03 04:45:08,667 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2023-04-03 04:45:08,667 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2023-04-03 04:45:08,667 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_ulong [2023-04-03 04:45:08,668 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2023-04-03 04:45:08,668 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2023-04-03 04:45:08,668 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2023-04-03 04:45:08,668 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_trap [2023-04-03 04:45:08,668 INFO L138 BoogieDeclarations]: Found implementation of procedure tty_insert_flip_string [2023-04-03 04:45:08,668 INFO L138 BoogieDeclarations]: Found implementation of procedure get_unaligned_le16 [2023-04-03 04:45:08,668 INFO L138 BoogieDeclarations]: Found implementation of procedure acm_get_by_index [2023-04-03 04:45:08,669 INFO L138 BoogieDeclarations]: Found implementation of procedure acm_alloc_minor [2023-04-03 04:45:08,669 INFO L138 BoogieDeclarations]: Found implementation of procedure acm_release_minor [2023-04-03 04:45:08,669 INFO L138 BoogieDeclarations]: Found implementation of procedure acm_ctrl_msg [2023-04-03 04:45:08,669 INFO L138 BoogieDeclarations]: Found implementation of procedure acm_wb_alloc [2023-04-03 04:45:08,669 INFO L138 BoogieDeclarations]: Found implementation of procedure acm_wb_is_avail [2023-04-03 04:45:08,669 INFO L138 BoogieDeclarations]: Found implementation of procedure acm_write_done [2023-04-03 04:45:08,669 INFO L138 BoogieDeclarations]: Found implementation of procedure acm_start_wb [2023-04-03 04:45:08,669 INFO L138 BoogieDeclarations]: Found implementation of procedure show_caps [2023-04-03 04:45:08,669 INFO L138 BoogieDeclarations]: Found implementation of procedure show_country_codes [2023-04-03 04:45:08,669 INFO L138 BoogieDeclarations]: Found implementation of procedure show_country_rel_date [2023-04-03 04:45:08,669 INFO L138 BoogieDeclarations]: Found implementation of procedure acm_ctrl_irq [2023-04-03 04:45:08,669 INFO L138 BoogieDeclarations]: Found implementation of procedure acm_submit_read_urb [2023-04-03 04:45:08,670 INFO L138 BoogieDeclarations]: Found implementation of procedure acm_submit_read_urbs [2023-04-03 04:45:08,670 INFO L138 BoogieDeclarations]: Found implementation of procedure acm_process_read_urb [2023-04-03 04:45:08,670 INFO L138 BoogieDeclarations]: Found implementation of procedure acm_read_bulk_callback [2023-04-03 04:45:08,670 INFO L138 BoogieDeclarations]: Found implementation of procedure acm_write_bulk [2023-04-03 04:45:08,670 INFO L138 BoogieDeclarations]: Found implementation of procedure acm_softint [2023-04-03 04:45:08,670 INFO L138 BoogieDeclarations]: Found implementation of procedure acm_tty_install [2023-04-03 04:45:08,670 INFO L138 BoogieDeclarations]: Found implementation of procedure acm_tty_open [2023-04-03 04:45:08,670 INFO L138 BoogieDeclarations]: Found implementation of procedure acm_port_activate [2023-04-03 04:45:08,670 INFO L138 BoogieDeclarations]: Found implementation of procedure acm_port_destruct [2023-04-03 04:45:08,671 INFO L138 BoogieDeclarations]: Found implementation of procedure acm_port_shutdown [2023-04-03 04:45:08,671 INFO L138 BoogieDeclarations]: Found implementation of procedure acm_tty_cleanup [2023-04-03 04:45:08,671 INFO L138 BoogieDeclarations]: Found implementation of procedure acm_tty_hangup [2023-04-03 04:45:08,672 INFO L138 BoogieDeclarations]: Found implementation of procedure acm_tty_close [2023-04-03 04:45:08,672 INFO L138 BoogieDeclarations]: Found implementation of procedure acm_tty_write [2023-04-03 04:45:08,672 INFO L138 BoogieDeclarations]: Found implementation of procedure acm_tty_write_room [2023-04-03 04:45:08,672 INFO L138 BoogieDeclarations]: Found implementation of procedure acm_tty_chars_in_buffer [2023-04-03 04:45:08,672 INFO L138 BoogieDeclarations]: Found implementation of procedure acm_tty_throttle [2023-04-03 04:45:08,672 INFO L138 BoogieDeclarations]: Found implementation of procedure acm_tty_unthrottle [2023-04-03 04:45:08,672 INFO L138 BoogieDeclarations]: Found implementation of procedure acm_tty_break_ctl [2023-04-03 04:45:08,673 INFO L138 BoogieDeclarations]: Found implementation of procedure acm_tty_tiocmget [2023-04-03 04:45:08,673 INFO L138 BoogieDeclarations]: Found implementation of procedure acm_tty_tiocmset [2023-04-03 04:45:08,673 INFO L138 BoogieDeclarations]: Found implementation of procedure get_serial_info [2023-04-03 04:45:08,673 INFO L138 BoogieDeclarations]: Found implementation of procedure set_serial_info [2023-04-03 04:45:08,673 INFO L138 BoogieDeclarations]: Found implementation of procedure acm_tty_ioctl [2023-04-03 04:45:08,673 INFO L138 BoogieDeclarations]: Found implementation of procedure acm_tty_set_termios [2023-04-03 04:45:08,673 INFO L138 BoogieDeclarations]: Found implementation of procedure acm_write_buffers_free [2023-04-03 04:45:08,673 INFO L138 BoogieDeclarations]: Found implementation of procedure acm_read_buffers_free [2023-04-03 04:45:08,673 INFO L138 BoogieDeclarations]: Found implementation of procedure acm_write_buffers_alloc [2023-04-03 04:45:08,673 INFO L138 BoogieDeclarations]: Found implementation of procedure acm_probe [2023-04-03 04:45:08,673 INFO L138 BoogieDeclarations]: Found implementation of procedure stop_data_traffic [2023-04-03 04:45:08,673 INFO L138 BoogieDeclarations]: Found implementation of procedure acm_disconnect [2023-04-03 04:45:08,673 INFO L138 BoogieDeclarations]: Found implementation of procedure acm_suspend [2023-04-03 04:45:08,673 INFO L138 BoogieDeclarations]: Found implementation of procedure acm_resume [2023-04-03 04:45:08,674 INFO L138 BoogieDeclarations]: Found implementation of procedure acm_reset_resume [2023-04-03 04:45:08,674 INFO L138 BoogieDeclarations]: Found implementation of procedure acm_init [2023-04-03 04:45:08,674 INFO L138 BoogieDeclarations]: Found implementation of procedure acm_exit [2023-04-03 04:45:08,674 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_driver_2 [2023-04-03 04:45:08,674 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_tty_port_operations_3 [2023-04-03 04:45:08,674 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize_tty_operations_1 [2023-04-03 04:45:08,674 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2023-04-03 04:45:08,674 INFO L138 BoogieDeclarations]: Found implementation of procedure interface_to_usbdev [2023-04-03 04:45:08,675 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_submit_urb_2 [2023-04-03 04:45:08,675 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_get_intfdata_3 [2023-04-03 04:45:08,675 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_submit_urb_6 [2023-04-03 04:45:08,675 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_submit_urb_7 [2023-04-03 04:45:08,675 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_autopm_get_interface_8 [2023-04-03 04:45:08,675 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_submit_urb_9 [2023-04-03 04:45:08,675 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_autopm_put_interface_10 [2023-04-03 04:45:08,675 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_autopm_put_interface_11 [2023-04-03 04:45:08,676 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_put_intf_12 [2023-04-03 04:45:08,676 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_autopm_get_interface_13 [2023-04-03 04:45:08,677 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_autopm_put_interface_14 [2023-04-03 04:45:08,677 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_alloc_urb_15 [2023-04-03 04:45:08,680 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_alloc_urb_16 [2023-04-03 04:45:08,680 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_fill_int_urb_17 [2023-04-03 04:45:08,685 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_fill_bulk_urb_18 [2023-04-03 04:45:08,685 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_alloc_urb_19 [2023-04-03 04:45:08,685 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_set_intfdata_22 [2023-04-03 04:45:08,685 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_free_urb_26 [2023-04-03 04:45:08,685 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_free_urb_27 [2023-04-03 04:45:08,686 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_free_urb_28 [2023-04-03 04:45:08,686 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_free_urb_32 [2023-04-03 04:45:08,686 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_free_urb_33 [2023-04-03 04:45:08,686 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_free_urb_34 [2023-04-03 04:45:08,686 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_submit_urb_37 [2023-04-03 04:45:08,686 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_register_driver_39 [2023-04-03 04:45:08,686 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_deregister_40 [2023-04-03 04:45:08,686 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop___0 [2023-04-03 04:45:08,686 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_get_intfdata [2023-04-03 04:45:08,686 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_set_intfdata [2023-04-03 04:45:08,686 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_put_intf [2023-04-03 04:45:08,686 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_alloc_urb [2023-04-03 04:45:08,686 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_urb [2023-04-03 04:45:08,687 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_fill_int_urb [2023-04-03 04:45:08,687 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_fill_bulk_urb [2023-04-03 04:45:08,687 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_submit_urb [2023-04-03 04:45:08,687 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_interface_to_usbdev [2023-04-03 04:45:08,687 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_get_dev [2023-04-03 04:45:08,687 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_put_dev [2023-04-03 04:45:08,687 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_get_interface [2023-04-03 04:45:08,687 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_put_interface [2023-04-03 04:45:08,687 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_serial_register [2023-04-03 04:45:08,687 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_serial_deregister [2023-04-03 04:45:08,687 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2023-04-03 04:45:08,687 INFO L138 BoogieDeclarations]: Found implementation of procedure __dynamic_dev_dbg [2023-04-03 04:45:08,687 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_work [2023-04-03 04:45:08,687 INFO L138 BoogieDeclarations]: Found implementation of procedure __mutex_init [2023-04-03 04:45:08,687 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2023-04-03 04:45:08,688 INFO L138 BoogieDeclarations]: Found implementation of procedure __tty_alloc_driver [2023-04-03 04:45:08,688 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_from_user [2023-04-03 04:45:08,688 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_to_user [2023-04-03 04:45:08,688 INFO L138 BoogieDeclarations]: Found implementation of procedure _dev_info [2023-04-03 04:45:08,688 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock [2023-04-03 04:45:08,688 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock_irq [2023-04-03 04:45:08,688 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock_irqsave [2023-04-03 04:45:08,688 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_unlock [2023-04-03 04:45:08,688 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_unlock_irq [2023-04-03 04:45:08,688 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_unlock_irqrestore [2023-04-03 04:45:08,688 INFO L138 BoogieDeclarations]: Found implementation of procedure cancel_work_sync [2023-04-03 04:45:08,688 INFO L138 BoogieDeclarations]: Found implementation of procedure capable [2023-04-03 04:45:08,688 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_err [2023-04-03 04:45:08,688 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_warn [2023-04-03 04:45:08,688 INFO L138 BoogieDeclarations]: Found implementation of procedure device_create_file [2023-04-03 04:45:08,688 INFO L138 BoogieDeclarations]: Found implementation of procedure device_remove_file [2023-04-03 04:45:08,688 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize [2023-04-03 04:45:08,689 INFO L138 BoogieDeclarations]: Found implementation of procedure lockdep_init_map [2023-04-03 04:45:08,689 INFO L138 BoogieDeclarations]: Found implementation of procedure might_fault [2023-04-03 04:45:08,689 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_nested [2023-04-03 04:45:08,689 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2023-04-03 04:45:08,689 INFO L138 BoogieDeclarations]: Found implementation of procedure printk [2023-04-03 04:45:08,689 INFO L138 BoogieDeclarations]: Found implementation of procedure put_tty_driver [2023-04-03 04:45:08,689 INFO L138 BoogieDeclarations]: Found implementation of procedure queue_work_on [2023-04-03 04:45:08,689 INFO L138 BoogieDeclarations]: Found implementation of procedure tty_flip_buffer_push [2023-04-03 04:45:08,689 INFO L138 BoogieDeclarations]: Found implementation of procedure tty_insert_flip_string_fixed_flag [2023-04-03 04:45:08,689 INFO L138 BoogieDeclarations]: Found implementation of procedure tty_kref_put [2023-04-03 04:45:08,689 INFO L138 BoogieDeclarations]: Found implementation of procedure tty_port_close [2023-04-03 04:45:08,690 INFO L138 BoogieDeclarations]: Found implementation of procedure tty_port_hangup [2023-04-03 04:45:08,690 INFO L138 BoogieDeclarations]: Found implementation of procedure tty_port_init [2023-04-03 04:45:08,690 INFO L138 BoogieDeclarations]: Found implementation of procedure tty_port_open [2023-04-03 04:45:08,690 INFO L138 BoogieDeclarations]: Found implementation of procedure tty_port_put [2023-04-03 04:45:08,690 INFO L138 BoogieDeclarations]: Found implementation of procedure tty_port_register_device [2023-04-03 04:45:08,690 INFO L138 BoogieDeclarations]: Found implementation of procedure tty_port_tty_get [2023-04-03 04:45:08,690 INFO L138 BoogieDeclarations]: Found implementation of procedure tty_port_tty_hangup [2023-04-03 04:45:08,690 INFO L138 BoogieDeclarations]: Found implementation of procedure tty_port_tty_wakeup [2023-04-03 04:45:08,690 INFO L138 BoogieDeclarations]: Found implementation of procedure tty_register_driver [2023-04-03 04:45:08,690 INFO L138 BoogieDeclarations]: Found implementation of procedure tty_set_operations [2023-04-03 04:45:08,690 INFO L138 BoogieDeclarations]: Found implementation of procedure tty_standard_install [2023-04-03 04:45:08,690 INFO L138 BoogieDeclarations]: Found implementation of procedure tty_termios_baud_rate [2023-04-03 04:45:08,690 INFO L138 BoogieDeclarations]: Found implementation of procedure tty_unregister_device [2023-04-03 04:45:08,690 INFO L138 BoogieDeclarations]: Found implementation of procedure tty_unregister_driver [2023-04-03 04:45:08,690 INFO L138 BoogieDeclarations]: Found implementation of procedure tty_vhangup [2023-04-03 04:45:08,690 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_alloc_coherent [2023-04-03 04:45:08,691 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_autopm_get_interface_async [2023-04-03 04:45:08,691 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_autopm_put_interface_async [2023-04-03 04:45:08,691 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_control_msg [2023-04-03 04:45:08,691 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_deregister [2023-04-03 04:45:08,691 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_driver_claim_interface [2023-04-03 04:45:08,691 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_driver_release_interface [2023-04-03 04:45:08,691 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_free_coherent [2023-04-03 04:45:08,691 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_get_intf [2023-04-03 04:45:08,691 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_ifnum_to_if [2023-04-03 04:45:08,691 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_kill_urb [2023-04-03 04:45:08,691 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_register_driver [2023-04-03 04:45:08,691 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_fmt [2023-04-03 04:45:08,691 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2023-04-03 04:45:08,691 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2023-04-03 04:45:08,692 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2023-04-03 04:45:08,692 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2023-04-03 04:45:08,692 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2023-04-03 04:45:08,692 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2023-04-03 04:45:08,692 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2023-04-03 04:45:08,692 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_perror_fail [2023-04-03 04:45:08,692 INFO L130 BoogieDeclarations]: Found specification of procedure __assert [2023-04-03 04:45:08,692 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2023-04-03 04:45:08,692 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-04-03 04:45:08,692 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2023-04-03 04:45:08,692 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy [2023-04-03 04:45:08,692 INFO L130 BoogieDeclarations]: Found specification of procedure memset [2023-04-03 04:45:08,692 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2023-04-03 04:45:08,692 INFO L130 BoogieDeclarations]: Found specification of procedure __le16_to_cpup [2023-04-03 04:45:08,692 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-04-03 04:45:08,692 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_dir_in [2023-04-03 04:45:08,693 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_dir_out [2023-04-03 04:45:08,693 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_xfer_bulk [2023-04-03 04:45:08,693 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_xfer_int [2023-04-03 04:45:08,693 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_is_bulk_in [2023-04-03 04:45:08,693 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_is_bulk_out [2023-04-03 04:45:08,693 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_is_int_in [2023-04-03 04:45:08,693 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_maxp [2023-04-03 04:45:08,693 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2023-04-03 04:45:08,693 INFO L130 BoogieDeclarations]: Found specification of procedure __set_bit [2023-04-03 04:45:08,693 INFO L130 BoogieDeclarations]: Found specification of procedure test_and_clear_bit [2023-04-03 04:45:08,693 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2023-04-03 04:45:08,693 INFO L130 BoogieDeclarations]: Found specification of procedure printk [2023-04-03 04:45:08,693 INFO L130 BoogieDeclarations]: Found specification of procedure __dynamic_dev_dbg [2023-04-03 04:45:08,693 INFO L130 BoogieDeclarations]: Found specification of procedure might_fault [2023-04-03 04:45:08,693 INFO L130 BoogieDeclarations]: Found specification of procedure sprintf [2023-04-03 04:45:08,693 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_fmt [2023-04-03 04:45:08,694 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2023-04-03 04:45:08,694 INFO L130 BoogieDeclarations]: Found specification of procedure PTR_ERR [2023-04-03 04:45:08,697 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2023-04-03 04:45:08,697 INFO L130 BoogieDeclarations]: Found specification of procedure __xadd_wrong_size [2023-04-03 04:45:08,698 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_add_return [2023-04-03 04:45:08,698 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2023-04-03 04:45:08,699 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-04-03 04:45:08,699 INFO L130 BoogieDeclarations]: Found specification of procedure lockdep_init_map [2023-04-03 04:45:08,699 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2023-04-03 04:45:08,699 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock [2023-04-03 04:45:08,699 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock_irq [2023-04-03 04:45:08,699 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock_irqsave [2023-04-03 04:45:08,699 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_unlock [2023-04-03 04:45:08,699 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_unlock_irq [2023-04-03 04:45:08,699 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_unlock_irqrestore [2023-04-03 04:45:08,699 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2023-04-03 04:45:08,699 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2023-04-03 04:45:08,699 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock_irq [2023-04-03 04:45:08,699 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2023-04-03 04:45:08,699 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irq [2023-04-03 04:45:08,699 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2023-04-03 04:45:08,699 INFO L130 BoogieDeclarations]: Found specification of procedure __init_work [2023-04-03 04:45:08,699 INFO L130 BoogieDeclarations]: Found specification of procedure queue_work_on [2023-04-03 04:45:08,699 INFO L130 BoogieDeclarations]: Found specification of procedure cancel_work_sync [2023-04-03 04:45:08,700 INFO L130 BoogieDeclarations]: Found specification of procedure queue_work [2023-04-03 04:45:08,700 INFO L130 BoogieDeclarations]: Found specification of procedure schedule_work [2023-04-03 04:45:08,700 INFO L130 BoogieDeclarations]: Found specification of procedure __mutex_init [2023-04-03 04:45:08,700 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_nested [2023-04-03 04:45:08,700 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2023-04-03 04:45:08,700 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_to_user [2023-04-03 04:45:08,700 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_from_user [2023-04-03 04:45:08,700 INFO L130 BoogieDeclarations]: Found specification of procedure copy_from_user [2023-04-03 04:45:08,700 INFO L130 BoogieDeclarations]: Found specification of procedure copy_to_user [2023-04-03 04:45:08,700 INFO L130 BoogieDeclarations]: Found specification of procedure kref_get [2023-04-03 04:45:08,700 INFO L130 BoogieDeclarations]: Found specification of procedure device_create_file [2023-04-03 04:45:08,700 INFO L130 BoogieDeclarations]: Found specification of procedure device_remove_file [2023-04-03 04:45:08,700 INFO L130 BoogieDeclarations]: Found specification of procedure dev_err [2023-04-03 04:45:08,700 INFO L130 BoogieDeclarations]: Found specification of procedure dev_warn [2023-04-03 04:45:08,700 INFO L130 BoogieDeclarations]: Found specification of procedure _dev_info [2023-04-03 04:45:08,700 INFO L130 BoogieDeclarations]: Found specification of procedure capable [2023-04-03 04:45:08,700 INFO L130 BoogieDeclarations]: Found specification of procedure pm_runtime_mark_last_busy [2023-04-03 04:45:08,701 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-04-03 04:45:08,701 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_get_intfdata_3 [2023-04-03 04:45:08,701 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_set_intfdata_22 [2023-04-03 04:45:08,701 INFO L130 BoogieDeclarations]: Found specification of procedure usb_get_intf [2023-04-03 04:45:08,701 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_put_intf_12 [2023-04-03 04:45:08,701 INFO L130 BoogieDeclarations]: Found specification of procedure interface_to_usbdev [2023-04-03 04:45:08,701 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_autopm_get_interface_8 [2023-04-03 04:45:08,701 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_autopm_get_interface_13 [2023-04-03 04:45:08,701 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_autopm_put_interface_10 [2023-04-03 04:45:08,701 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_autopm_put_interface_11 [2023-04-03 04:45:08,701 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_autopm_put_interface_14 [2023-04-03 04:45:08,701 INFO L130 BoogieDeclarations]: Found specification of procedure usb_autopm_get_interface_async [2023-04-03 04:45:08,701 INFO L130 BoogieDeclarations]: Found specification of procedure usb_autopm_put_interface_async [2023-04-03 04:45:08,701 INFO L130 BoogieDeclarations]: Found specification of procedure usb_mark_last_busy [2023-04-03 04:45:08,701 INFO L130 BoogieDeclarations]: Found specification of procedure usb_driver_claim_interface [2023-04-03 04:45:08,701 INFO L130 BoogieDeclarations]: Found specification of procedure usb_interface_claimed [2023-04-03 04:45:08,701 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-04-03 04:45:08,701 INFO L130 BoogieDeclarations]: Found specification of procedure usb_driver_release_interface [2023-04-03 04:45:08,702 INFO L130 BoogieDeclarations]: Found specification of procedure usb_ifnum_to_if [2023-04-03 04:45:08,702 INFO L130 BoogieDeclarations]: Found specification of procedure usb_register_driver [2023-04-03 04:45:08,702 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_register_driver_39 [2023-04-03 04:45:08,702 INFO L130 BoogieDeclarations]: Found specification of procedure usb_deregister [2023-04-03 04:45:08,702 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_deregister_40 [2023-04-03 04:45:08,702 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_fill_bulk_urb_18 [2023-04-03 04:45:08,702 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_fill_int_urb_17 [2023-04-03 04:45:08,702 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_alloc_urb_15 [2023-04-03 04:45:08,702 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_alloc_urb_16 [2023-04-03 04:45:08,702 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_alloc_urb_19 [2023-04-03 04:45:08,702 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_free_urb_26 [2023-04-03 04:45:08,702 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_free_urb_27 [2023-04-03 04:45:08,702 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_free_urb_28 [2023-04-03 04:45:08,702 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_free_urb_32 [2023-04-03 04:45:08,702 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_free_urb_33 [2023-04-03 04:45:08,702 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_free_urb_34 [2023-04-03 04:45:08,702 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_submit_urb_2 [2023-04-03 04:45:08,703 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_submit_urb_6 [2023-04-03 04:45:08,703 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_submit_urb_7 [2023-04-03 04:45:08,703 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_submit_urb_9 [2023-04-03 04:45:08,703 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_submit_urb_37 [2023-04-03 04:45:08,703 INFO L130 BoogieDeclarations]: Found specification of procedure usb_kill_urb [2023-04-03 04:45:08,703 INFO L130 BoogieDeclarations]: Found specification of procedure usb_alloc_coherent [2023-04-03 04:45:08,703 INFO L130 BoogieDeclarations]: Found specification of procedure usb_free_coherent [2023-04-03 04:45:08,703 INFO L130 BoogieDeclarations]: Found specification of procedure usb_control_msg [2023-04-03 04:45:08,703 INFO L130 BoogieDeclarations]: Found specification of procedure __create_pipe [2023-04-03 04:45:08,703 INFO L130 BoogieDeclarations]: Found specification of procedure __tty_alloc_driver [2023-04-03 04:45:08,703 INFO L130 BoogieDeclarations]: Found specification of procedure put_tty_driver [2023-04-03 04:45:08,703 INFO L130 BoogieDeclarations]: Found specification of procedure tty_set_operations [2023-04-03 04:45:08,703 INFO L130 BoogieDeclarations]: Found specification of procedure alloc_tty_driver [2023-04-03 04:45:08,703 INFO L130 BoogieDeclarations]: Found specification of procedure tty_kref_put [2023-04-03 04:45:08,703 INFO L130 BoogieDeclarations]: Found specification of procedure tty_register_driver [2023-04-03 04:45:08,703 INFO L130 BoogieDeclarations]: Found specification of procedure tty_unregister_driver [2023-04-03 04:45:08,703 INFO L130 BoogieDeclarations]: Found specification of procedure tty_unregister_device [2023-04-03 04:45:08,704 INFO L130 BoogieDeclarations]: Found specification of procedure tty_vhangup [2023-04-03 04:45:08,704 INFO L130 BoogieDeclarations]: Found specification of procedure tty_termios_baud_rate [2023-04-03 04:45:08,704 INFO L130 BoogieDeclarations]: Found specification of procedure tty_get_baud_rate [2023-04-03 04:45:08,704 INFO L130 BoogieDeclarations]: Found specification of procedure tty_standard_install [2023-04-03 04:45:08,704 INFO L130 BoogieDeclarations]: Found specification of procedure tty_port_init [2023-04-03 04:45:08,704 INFO L130 BoogieDeclarations]: Found specification of procedure tty_port_register_device [2023-04-03 04:45:08,704 INFO L130 BoogieDeclarations]: Found specification of procedure tty_port_put [2023-04-03 04:45:08,704 INFO L130 BoogieDeclarations]: Found specification of procedure tty_port_get [2023-04-03 04:45:08,704 INFO L130 BoogieDeclarations]: Found specification of procedure tty_port_tty_get [2023-04-03 04:45:08,704 INFO L130 BoogieDeclarations]: Found specification of procedure tty_port_hangup [2023-04-03 04:45:08,704 INFO L130 BoogieDeclarations]: Found specification of procedure tty_port_tty_hangup [2023-04-03 04:45:08,704 INFO L130 BoogieDeclarations]: Found specification of procedure tty_port_tty_wakeup [2023-04-03 04:45:08,704 INFO L130 BoogieDeclarations]: Found specification of procedure tty_port_close [2023-04-03 04:45:08,704 INFO L130 BoogieDeclarations]: Found specification of procedure tty_port_open [2023-04-03 04:45:08,704 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_alloc_urb [2023-04-03 04:45:08,704 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_urb [2023-04-03 04:45:08,704 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_fill_int_urb [2023-04-03 04:45:08,705 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_fill_bulk_urb [2023-04-03 04:45:08,705 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_submit_urb [2023-04-03 04:45:08,705 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_interface_to_usbdev [2023-04-03 04:45:08,705 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_get_interface [2023-04-03 04:45:08,705 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_put_interface [2023-04-03 04:45:08,705 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_get_intfdata [2023-04-03 04:45:08,705 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_set_intfdata [2023-04-03 04:45:08,705 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_put_intf [2023-04-03 04:45:08,705 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2023-04-03 04:45:08,705 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2023-04-03 04:45:08,705 INFO L130 BoogieDeclarations]: Found specification of procedure __kmalloc [2023-04-03 04:45:08,705 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2023-04-03 04:45:08,705 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2023-04-03 04:45:08,705 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2023-04-03 04:45:08,705 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2023-04-03 04:45:08,705 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2023-04-03 04:45:08,705 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2023-04-03 04:45:08,706 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uint [2023-04-03 04:45:08,706 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_ulong [2023-04-03 04:45:08,706 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-04-03 04:45:08,706 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-04-03 04:45:08,706 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2023-04-03 04:45:08,706 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2023-04-03 04:45:08,706 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_ulong [2023-04-03 04:45:08,706 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2023-04-03 04:45:08,706 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2023-04-03 04:45:08,706 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_trap [2023-04-03 04:45:08,706 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_driver_2 [2023-04-03 04:45:08,706 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_tty_port_operations_3 [2023-04-03 04:45:08,706 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize_tty_operations_1 [2023-04-03 04:45:08,706 INFO L130 BoogieDeclarations]: Found specification of procedure tty_insert_flip_string_fixed_flag [2023-04-03 04:45:08,706 INFO L130 BoogieDeclarations]: Found specification of procedure tty_flip_buffer_push [2023-04-03 04:45:08,706 INFO L130 BoogieDeclarations]: Found specification of procedure tty_insert_flip_string [2023-04-03 04:45:08,706 INFO L130 BoogieDeclarations]: Found specification of procedure get_unaligned_le16 [2023-04-03 04:45:08,707 INFO L130 BoogieDeclarations]: Found specification of procedure acm_get_by_index [2023-04-03 04:45:08,707 INFO L130 BoogieDeclarations]: Found specification of procedure acm_alloc_minor [2023-04-03 04:45:08,707 INFO L130 BoogieDeclarations]: Found specification of procedure acm_release_minor [2023-04-03 04:45:08,707 INFO L130 BoogieDeclarations]: Found specification of procedure acm_ctrl_msg [2023-04-03 04:45:08,707 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-04-03 04:45:08,707 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-04-03 04:45:08,707 INFO L130 BoogieDeclarations]: Found specification of procedure acm_wb_alloc [2023-04-03 04:45:08,707 INFO L130 BoogieDeclarations]: Found specification of procedure acm_wb_is_avail [2023-04-03 04:45:08,707 INFO L130 BoogieDeclarations]: Found specification of procedure acm_write_done [2023-04-03 04:45:08,707 INFO L130 BoogieDeclarations]: Found specification of procedure acm_start_wb [2023-04-03 04:45:08,707 INFO L130 BoogieDeclarations]: Found specification of procedure show_caps [2023-04-03 04:45:08,707 INFO L130 BoogieDeclarations]: Found specification of procedure show_country_codes [2023-04-03 04:45:08,707 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2023-04-03 04:45:08,707 INFO L130 BoogieDeclarations]: Found specification of procedure show_country_rel_date [2023-04-03 04:45:08,707 INFO L130 BoogieDeclarations]: Found specification of procedure acm_ctrl_irq [2023-04-03 04:45:08,707 INFO L130 BoogieDeclarations]: Found specification of procedure acm_submit_read_urb [2023-04-03 04:45:08,708 INFO L130 BoogieDeclarations]: Found specification of procedure acm_submit_read_urbs [2023-04-03 04:45:08,708 INFO L130 BoogieDeclarations]: Found specification of procedure acm_process_read_urb [2023-04-03 04:45:08,708 INFO L130 BoogieDeclarations]: Found specification of procedure acm_read_bulk_callback [2023-04-03 04:45:08,708 INFO L130 BoogieDeclarations]: Found specification of procedure acm_write_bulk [2023-04-03 04:45:08,708 INFO L130 BoogieDeclarations]: Found specification of procedure acm_softint [2023-04-03 04:45:08,708 INFO L130 BoogieDeclarations]: Found specification of procedure acm_tty_install [2023-04-03 04:45:08,708 INFO L130 BoogieDeclarations]: Found specification of procedure acm_tty_open [2023-04-03 04:45:08,708 INFO L130 BoogieDeclarations]: Found specification of procedure acm_port_activate [2023-04-03 04:45:08,708 INFO L130 BoogieDeclarations]: Found specification of procedure acm_port_destruct [2023-04-03 04:45:08,708 INFO L130 BoogieDeclarations]: Found specification of procedure acm_port_shutdown [2023-04-03 04:45:08,708 INFO L130 BoogieDeclarations]: Found specification of procedure acm_tty_cleanup [2023-04-03 04:45:08,708 INFO L130 BoogieDeclarations]: Found specification of procedure acm_tty_hangup [2023-04-03 04:45:08,708 INFO L130 BoogieDeclarations]: Found specification of procedure acm_tty_close [2023-04-03 04:45:08,708 INFO L130 BoogieDeclarations]: Found specification of procedure acm_tty_write [2023-04-03 04:45:08,708 INFO L130 BoogieDeclarations]: Found specification of procedure acm_tty_write_room [2023-04-03 04:45:08,708 INFO L130 BoogieDeclarations]: Found specification of procedure acm_tty_chars_in_buffer [2023-04-03 04:45:08,709 INFO L130 BoogieDeclarations]: Found specification of procedure acm_tty_throttle [2023-04-03 04:45:08,709 INFO L130 BoogieDeclarations]: Found specification of procedure acm_tty_unthrottle [2023-04-03 04:45:08,709 INFO L130 BoogieDeclarations]: Found specification of procedure acm_tty_break_ctl [2023-04-03 04:45:08,709 INFO L130 BoogieDeclarations]: Found specification of procedure acm_tty_tiocmget [2023-04-03 04:45:08,709 INFO L130 BoogieDeclarations]: Found specification of procedure acm_tty_tiocmset [2023-04-03 04:45:08,709 INFO L130 BoogieDeclarations]: Found specification of procedure get_serial_info [2023-04-03 04:45:08,709 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2023-04-03 04:45:08,709 INFO L130 BoogieDeclarations]: Found specification of procedure set_serial_info [2023-04-03 04:45:08,709 INFO L130 BoogieDeclarations]: Found specification of procedure acm_tty_ioctl [2023-04-03 04:45:08,709 INFO L130 BoogieDeclarations]: Found specification of procedure acm_tty_set_termios [2023-04-03 04:45:08,709 INFO L130 BoogieDeclarations]: Found specification of procedure acm_write_buffers_free [2023-04-03 04:45:08,709 INFO L130 BoogieDeclarations]: Found specification of procedure acm_read_buffers_free [2023-04-03 04:45:08,709 INFO L130 BoogieDeclarations]: Found specification of procedure acm_write_buffers_alloc [2023-04-03 04:45:08,709 INFO L130 BoogieDeclarations]: Found specification of procedure acm_probe [2023-04-03 04:45:08,709 INFO L130 BoogieDeclarations]: Found specification of procedure stop_data_traffic [2023-04-03 04:45:08,709 INFO L130 BoogieDeclarations]: Found specification of procedure acm_disconnect [2023-04-03 04:45:08,709 INFO L130 BoogieDeclarations]: Found specification of procedure acm_suspend [2023-04-03 04:45:08,709 INFO L130 BoogieDeclarations]: Found specification of procedure acm_resume [2023-04-03 04:45:08,710 INFO L130 BoogieDeclarations]: Found specification of procedure acm_reset_resume [2023-04-03 04:45:08,710 INFO L130 BoogieDeclarations]: Found specification of procedure acm_init [2023-04-03 04:45:08,710 INFO L130 BoogieDeclarations]: Found specification of procedure acm_exit [2023-04-03 04:45:08,710 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize [2023-04-03 04:45:08,710 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2023-04-03 04:45:08,710 INFO L130 BoogieDeclarations]: Found specification of procedure main [2023-04-03 04:45:08,710 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop___0 [2023-04-03 04:45:08,710 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2023-04-03 04:45:08,710 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_get_dev [2023-04-03 04:45:08,710 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_put_dev [2023-04-03 04:45:08,710 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_serial_register [2023-04-03 04:45:08,710 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_serial_deregister [2023-04-03 04:45:08,710 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_bool [2023-04-03 04:45:08,710 INFO L130 BoogieDeclarations]: Found specification of procedure free [2023-04-03 04:45:08,710 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2023-04-03 04:45:08,710 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-04-03 04:45:08,710 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2023-04-03 04:45:08,711 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-04-03 04:45:08,711 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2023-04-03 04:45:08,711 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2023-04-03 04:45:08,711 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2023-04-03 04:45:08,711 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2023-04-03 04:45:09,409 INFO L236 CfgBuilder]: Building ICFG [2023-04-03 04:45:09,414 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-04-03 04:45:09,591 INFO L771 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2023-04-03 04:45:11,817 INFO L771 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stop___0FINAL: assume true; [2023-04-03 04:45:17,351 INFO L277 CfgBuilder]: Performing block encoding [2023-04-03 04:45:18,529 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-04-03 04:45:18,530 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-04-03 04:45:18,535 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.04 04:45:18 BoogieIcfgContainer [2023-04-03 04:45:18,535 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-04-03 04:45:18,538 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-04-03 04:45:18,538 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-04-03 04:45:18,541 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-04-03 04:45:18,541 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.04 04:45:05" (1/3) ... [2023-04-03 04:45:18,542 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@33871944 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.04 04:45:18, skipping insertion in model container [2023-04-03 04:45:18,542 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.04 04:45:08" (2/3) ... [2023-04-03 04:45:18,542 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@33871944 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.04 04:45:18, skipping insertion in model container [2023-04-03 04:45:18,542 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.04 04:45:18" (3/3) ... [2023-04-03 04:45:18,543 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-3.12-rc1.tar.xz-144_2a-drivers--usb--class--cdc-acm.ko-entry_point.cil.out.i [2023-04-03 04:45:18,560 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-04-03 04:45:18,560 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-04-03 04:45:18,652 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-04-03 04:45:18,660 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;@76c3b72e, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-04-03 04:45:18,660 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-04-03 04:45:18,671 INFO L276 IsEmpty]: Start isEmpty. Operand has 1772 states, 1042 states have (on average 1.283109404990403) internal successors, (1337), 1085 states have internal predecessors, (1337), 519 states have call successors, (519), 207 states have call predecessors, (519), 205 states have return successors, (507), 497 states have call predecessors, (507), 507 states have call successors, (507) [2023-04-03 04:45:18,706 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2023-04-03 04:45:18,706 INFO L187 NwaCegarLoop]: Found error trace [2023-04-03 04:45:18,707 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-03 04:45:18,708 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-03 04:45:18,713 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-03 04:45:18,713 INFO L85 PathProgramCache]: Analyzing trace with hash -933415111, now seen corresponding path program 1 times [2023-04-03 04:45:18,721 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-03 04:45:18,724 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1514653716] [2023-04-03 04:45:18,725 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-03 04:45:18,725 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-03 04:45:19,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-03 04:45:19,797 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2023-04-03 04:45:19,797 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-03 04:45:19,798 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1514653716] [2023-04-03 04:45:19,798 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1514653716] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-03 04:45:19,798 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-03 04:45:19,798 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-04-03 04:45:19,799 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1250092034] [2023-04-03 04:45:19,800 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-03 04:45:19,804 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-04-03 04:45:19,805 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-03 04:45:19,839 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-04-03 04:45:19,840 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-04-03 04:45:19,845 INFO L87 Difference]: Start difference. First operand has 1772 states, 1042 states have (on average 1.283109404990403) internal successors, (1337), 1085 states have internal predecessors, (1337), 519 states have call successors, (519), 207 states have call predecessors, (519), 205 states have return successors, (507), 497 states have call predecessors, (507), 507 states have call successors, (507) Second operand has 3 states, 3 states have (on average 13.666666666666666) internal successors, (41), 3 states have internal predecessors, (41), 2 states have call successors, (25), 2 states have call predecessors, (25), 1 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2023-04-03 04:45:21,837 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-03 04:45:21,837 INFO L93 Difference]: Finished difference Result 5105 states and 6910 transitions. [2023-04-03 04:45:21,838 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-04-03 04:45:21,840 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 13.666666666666666) internal successors, (41), 3 states have internal predecessors, (41), 2 states have call successors, (25), 2 states have call predecessors, (25), 1 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) Word has length 127 [2023-04-03 04:45:21,840 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-03 04:45:21,871 INFO L225 Difference]: With dead ends: 5105 [2023-04-03 04:45:21,871 INFO L226 Difference]: Without dead ends: 3351 [2023-04-03 04:45:21,884 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 [2023-04-03 04:45:21,887 INFO L413 NwaCegarLoop]: 2147 mSDtfsCounter, 2228 mSDsluCounter, 2066 mSDsCounter, 0 mSdLazyCounter, 444 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2228 SdHoareTripleChecker+Valid, 4213 SdHoareTripleChecker+Invalid, 447 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 444 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2023-04-03 04:45:21,887 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2228 Valid, 4213 Invalid, 447 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 444 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2023-04-03 04:45:21,907 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3351 states. [2023-04-03 04:45:22,073 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3351 to 3348. [2023-04-03 04:45:22,081 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3348 states, 1995 states have (on average 1.276190476190476) internal successors, (2546), 2048 states have internal predecessors, (2546), 964 states have call successors, (964), 391 states have call predecessors, (964), 388 states have return successors, (956), 936 states have call predecessors, (956), 956 states have call successors, (956) [2023-04-03 04:45:22,102 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3348 states to 3348 states and 4466 transitions. [2023-04-03 04:45:22,104 INFO L78 Accepts]: Start accepts. Automaton has 3348 states and 4466 transitions. Word has length 127 [2023-04-03 04:45:22,105 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-03 04:45:22,105 INFO L495 AbstractCegarLoop]: Abstraction has 3348 states and 4466 transitions. [2023-04-03 04:45:22,105 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 13.666666666666666) internal successors, (41), 3 states have internal predecessors, (41), 2 states have call successors, (25), 2 states have call predecessors, (25), 1 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2023-04-03 04:45:22,106 INFO L276 IsEmpty]: Start isEmpty. Operand 3348 states and 4466 transitions. [2023-04-03 04:45:22,112 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2023-04-03 04:45:22,112 INFO L187 NwaCegarLoop]: Found error trace [2023-04-03 04:45:22,112 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-03 04:45:22,112 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-04-03 04:45:22,112 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-03 04:45:22,113 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-03 04:45:22,113 INFO L85 PathProgramCache]: Analyzing trace with hash -80879006, now seen corresponding path program 1 times [2023-04-03 04:45:22,113 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-03 04:45:22,113 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [481328608] [2023-04-03 04:45:22,114 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-03 04:45:22,114 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-03 04:45:22,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-03 04:45:23,511 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2023-04-03 04:45:23,511 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-03 04:45:23,513 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [481328608] [2023-04-03 04:45:23,513 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [481328608] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-03 04:45:23,514 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-03 04:45:23,514 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-04-03 04:45:23,514 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1846376761] [2023-04-03 04:45:23,514 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-03 04:45:23,516 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-04-03 04:45:23,516 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-03 04:45:23,517 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-04-03 04:45:23,517 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-04-03 04:45:23,518 INFO L87 Difference]: Start difference. First operand 3348 states and 4466 transitions. Second operand has 3 states, 3 states have (on average 17.333333333333332) internal successors, (52), 3 states have internal predecessors, (52), 3 states have call successors, (26), 3 states have call predecessors, (26), 2 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2023-04-03 04:45:25,198 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-03 04:45:25,199 INFO L93 Difference]: Finished difference Result 6338 states and 8456 transitions. [2023-04-03 04:45:25,199 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-04-03 04:45:25,199 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 17.333333333333332) internal successors, (52), 3 states have internal predecessors, (52), 3 states have call successors, (26), 3 states have call predecessors, (26), 2 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) Word has length 140 [2023-04-03 04:45:25,200 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-03 04:45:25,234 INFO L225 Difference]: With dead ends: 6338 [2023-04-03 04:45:25,234 INFO L226 Difference]: Without dead ends: 6335 [2023-04-03 04:45:25,240 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 [2023-04-03 04:45:25,241 INFO L413 NwaCegarLoop]: 2112 mSDtfsCounter, 2048 mSDsluCounter, 2045 mSDsCounter, 0 mSdLazyCounter, 445 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2048 SdHoareTripleChecker+Valid, 4157 SdHoareTripleChecker+Invalid, 446 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 445 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2023-04-03 04:45:25,241 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2048 Valid, 4157 Invalid, 446 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 445 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2023-04-03 04:45:25,248 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6335 states. [2023-04-03 04:45:25,549 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6335 to 6322. [2023-04-03 04:45:25,561 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6322 states, 3785 states have (on average 1.28110964332893) internal successors, (4849), 3886 states have internal predecessors, (4849), 1798 states have call successors, (1798), 746 states have call predecessors, (1798), 738 states have return successors, (1791), 1743 states have call predecessors, (1791), 1789 states have call successors, (1791) [2023-04-03 04:45:25,595 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6322 states to 6322 states and 8438 transitions. [2023-04-03 04:45:25,596 INFO L78 Accepts]: Start accepts. Automaton has 6322 states and 8438 transitions. Word has length 140 [2023-04-03 04:45:25,597 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-03 04:45:25,597 INFO L495 AbstractCegarLoop]: Abstraction has 6322 states and 8438 transitions. [2023-04-03 04:45:25,598 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.333333333333332) internal successors, (52), 3 states have internal predecessors, (52), 3 states have call successors, (26), 3 states have call predecessors, (26), 2 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2023-04-03 04:45:25,598 INFO L276 IsEmpty]: Start isEmpty. Operand 6322 states and 8438 transitions. [2023-04-03 04:45:25,602 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2023-04-03 04:45:25,602 INFO L187 NwaCegarLoop]: Found error trace [2023-04-03 04:45:25,602 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-03 04:45:25,602 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-04-03 04:45:25,603 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-03 04:45:25,603 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-03 04:45:25,603 INFO L85 PathProgramCache]: Analyzing trace with hash 1786650101, now seen corresponding path program 1 times [2023-04-03 04:45:25,603 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-03 04:45:25,603 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [151709150] [2023-04-03 04:45:25,604 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-03 04:45:25,604 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-03 04:45:25,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-03 04:45:26,492 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2023-04-03 04:45:26,492 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-03 04:45:26,493 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [151709150] [2023-04-03 04:45:26,493 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [151709150] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-03 04:45:26,493 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-03 04:45:26,493 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-04-03 04:45:26,494 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1581614359] [2023-04-03 04:45:26,494 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-03 04:45:26,494 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-04-03 04:45:26,494 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-03 04:45:26,495 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-04-03 04:45:26,495 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-04-03 04:45:26,495 INFO L87 Difference]: Start difference. First operand 6322 states and 8438 transitions. Second operand has 3 states, 3 states have (on average 17.666666666666668) internal successors, (53), 3 states have internal predecessors, (53), 3 states have call successors, (26), 3 states have call predecessors, (26), 2 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2023-04-03 04:45:27,836 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-03 04:45:27,836 INFO L93 Difference]: Finished difference Result 6324 states and 8439 transitions. [2023-04-03 04:45:27,836 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-04-03 04:45:27,837 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 17.666666666666668) internal successors, (53), 3 states have internal predecessors, (53), 3 states have call successors, (26), 3 states have call predecessors, (26), 2 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) Word has length 141 [2023-04-03 04:45:27,840 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-03 04:45:27,880 INFO L225 Difference]: With dead ends: 6324 [2023-04-03 04:45:27,880 INFO L226 Difference]: Without dead ends: 6321 [2023-04-03 04:45:27,886 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-04-03 04:45:27,889 INFO L413 NwaCegarLoop]: 2097 mSDtfsCounter, 2264 mSDsluCounter, 1 mSDsCounter, 0 mSdLazyCounter, 218 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2264 SdHoareTripleChecker+Valid, 2098 SdHoareTripleChecker+Invalid, 218 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 218 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2023-04-03 04:45:27,891 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2264 Valid, 2098 Invalid, 218 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 218 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2023-04-03 04:45:27,899 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6321 states. [2023-04-03 04:45:28,203 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6321 to 6321. [2023-04-03 04:45:28,227 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6321 states, 3785 states have (on average 1.2808454425363276) internal successors, (4848), 3885 states have internal predecessors, (4848), 1797 states have call successors, (1797), 746 states have call predecessors, (1797), 738 states have return successors, (1791), 1743 states have call predecessors, (1791), 1789 states have call successors, (1791) [2023-04-03 04:45:28,305 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6321 states to 6321 states and 8436 transitions. [2023-04-03 04:45:28,306 INFO L78 Accepts]: Start accepts. Automaton has 6321 states and 8436 transitions. Word has length 141 [2023-04-03 04:45:28,306 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-03 04:45:28,306 INFO L495 AbstractCegarLoop]: Abstraction has 6321 states and 8436 transitions. [2023-04-03 04:45:28,307 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.666666666666668) internal successors, (53), 3 states have internal predecessors, (53), 3 states have call successors, (26), 3 states have call predecessors, (26), 2 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2023-04-03 04:45:28,307 INFO L276 IsEmpty]: Start isEmpty. Operand 6321 states and 8436 transitions. [2023-04-03 04:45:28,314 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2023-04-03 04:45:28,314 INFO L187 NwaCegarLoop]: Found error trace [2023-04-03 04:45:28,314 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-03 04:45:28,314 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-04-03 04:45:28,314 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-03 04:45:28,315 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-03 04:45:28,316 INFO L85 PathProgramCache]: Analyzing trace with hash -449484859, now seen corresponding path program 1 times [2023-04-03 04:45:28,316 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-03 04:45:28,316 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1227138840] [2023-04-03 04:45:28,316 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-03 04:45:28,316 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-03 04:45:28,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-03 04:45:28,701 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2023-04-03 04:45:28,702 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-03 04:45:28,702 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1227138840] [2023-04-03 04:45:28,702 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1227138840] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-03 04:45:28,702 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-03 04:45:28,702 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-04-03 04:45:28,702 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [174034836] [2023-04-03 04:45:28,703 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-03 04:45:28,703 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-04-03 04:45:28,704 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-03 04:45:28,704 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-04-03 04:45:28,704 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-04-03 04:45:28,705 INFO L87 Difference]: Start difference. First operand 6321 states and 8436 transitions. Second operand has 3 states, 3 states have (on average 18.0) internal successors, (54), 3 states have internal predecessors, (54), 3 states have call successors, (26), 3 states have call predecessors, (26), 2 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2023-04-03 04:45:30,192 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-03 04:45:30,193 INFO L93 Difference]: Finished difference Result 6323 states and 8437 transitions. [2023-04-03 04:45:30,194 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-04-03 04:45:30,194 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 18.0) internal successors, (54), 3 states have internal predecessors, (54), 3 states have call successors, (26), 3 states have call predecessors, (26), 2 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) Word has length 142 [2023-04-03 04:45:30,194 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-03 04:45:30,234 INFO L225 Difference]: With dead ends: 6323 [2023-04-03 04:45:30,234 INFO L226 Difference]: Without dead ends: 6320 [2023-04-03 04:45:30,240 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-04-03 04:45:30,243 INFO L413 NwaCegarLoop]: 2095 mSDtfsCounter, 2261 mSDsluCounter, 1 mSDsCounter, 0 mSdLazyCounter, 218 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2261 SdHoareTripleChecker+Valid, 2096 SdHoareTripleChecker+Invalid, 218 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 218 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2023-04-03 04:45:30,244 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2261 Valid, 2096 Invalid, 218 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 218 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2023-04-03 04:45:30,251 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6320 states. [2023-04-03 04:45:30,550 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6320 to 6320. [2023-04-03 04:45:30,561 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6320 states, 3785 states have (on average 1.2805812417437252) internal successors, (4847), 3884 states have internal predecessors, (4847), 1796 states have call successors, (1796), 746 states have call predecessors, (1796), 738 states have return successors, (1791), 1743 states have call predecessors, (1791), 1789 states have call successors, (1791) [2023-04-03 04:45:30,585 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6320 states to 6320 states and 8434 transitions. [2023-04-03 04:45:30,586 INFO L78 Accepts]: Start accepts. Automaton has 6320 states and 8434 transitions. Word has length 142 [2023-04-03 04:45:30,587 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-03 04:45:30,587 INFO L495 AbstractCegarLoop]: Abstraction has 6320 states and 8434 transitions. [2023-04-03 04:45:30,588 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 18.0) internal successors, (54), 3 states have internal predecessors, (54), 3 states have call successors, (26), 3 states have call predecessors, (26), 2 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2023-04-03 04:45:30,588 INFO L276 IsEmpty]: Start isEmpty. Operand 6320 states and 8434 transitions. [2023-04-03 04:45:30,592 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2023-04-03 04:45:30,592 INFO L187 NwaCegarLoop]: Found error trace [2023-04-03 04:45:30,592 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-03 04:45:30,592 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-04-03 04:45:30,592 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-03 04:45:30,593 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-03 04:45:30,593 INFO L85 PathProgramCache]: Analyzing trace with hash -1050187016, now seen corresponding path program 1 times [2023-04-03 04:45:30,593 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-03 04:45:30,593 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1781337372] [2023-04-03 04:45:30,593 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-03 04:45:30,594 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-03 04:45:30,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-03 04:45:31,155 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2023-04-03 04:45:31,156 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-03 04:45:31,156 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1781337372] [2023-04-03 04:45:31,156 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1781337372] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-03 04:45:31,156 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-03 04:45:31,156 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-04-03 04:45:31,156 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [392644560] [2023-04-03 04:45:31,156 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-03 04:45:31,157 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-04-03 04:45:31,157 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-03 04:45:31,157 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-04-03 04:45:31,157 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-04-03 04:45:31,157 INFO L87 Difference]: Start difference. First operand 6320 states and 8434 transitions. Second operand has 3 states, 3 states have (on average 18.333333333333332) internal successors, (55), 3 states have internal predecessors, (55), 3 states have call successors, (26), 3 states have call predecessors, (26), 2 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2023-04-03 04:45:33,307 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-03 04:45:33,308 INFO L93 Difference]: Finished difference Result 12329 states and 16573 transitions. [2023-04-03 04:45:33,308 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-04-03 04:45:33,308 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 18.333333333333332) internal successors, (55), 3 states have internal predecessors, (55), 3 states have call successors, (26), 3 states have call predecessors, (26), 2 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) Word has length 143 [2023-04-03 04:45:33,309 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-03 04:45:33,397 INFO L225 Difference]: With dead ends: 12329 [2023-04-03 04:45:33,397 INFO L226 Difference]: Without dead ends: 12326 [2023-04-03 04:45:33,410 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 [2023-04-03 04:45:33,412 INFO L413 NwaCegarLoop]: 2297 mSDtfsCounter, 2164 mSDsluCounter, 2066 mSDsCounter, 0 mSdLazyCounter, 458 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2164 SdHoareTripleChecker+Valid, 4363 SdHoareTripleChecker+Invalid, 459 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 458 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2023-04-03 04:45:33,412 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2164 Valid, 4363 Invalid, 459 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 458 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2023-04-03 04:45:33,426 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12326 states. [2023-04-03 04:45:34,049 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12326 to 12311. [2023-04-03 04:45:34,070 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12311 states, 7382 states have (on average 1.2837984286101327) internal successors, (9477), 7585 states have internal predecessors, (9477), 3486 states have call successors, (3486), 1468 states have call predecessors, (3486), 1442 states have return successors, (3593), 3365 states have call predecessors, (3593), 3477 states have call successors, (3593) [2023-04-03 04:45:34,123 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12311 states to 12311 states and 16556 transitions. [2023-04-03 04:45:34,124 INFO L78 Accepts]: Start accepts. Automaton has 12311 states and 16556 transitions. Word has length 143 [2023-04-03 04:45:34,124 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-03 04:45:34,124 INFO L495 AbstractCegarLoop]: Abstraction has 12311 states and 16556 transitions. [2023-04-03 04:45:34,125 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 18.333333333333332) internal successors, (55), 3 states have internal predecessors, (55), 3 states have call successors, (26), 3 states have call predecessors, (26), 2 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2023-04-03 04:45:34,125 INFO L276 IsEmpty]: Start isEmpty. Operand 12311 states and 16556 transitions. [2023-04-03 04:45:34,130 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2023-04-03 04:45:34,130 INFO L187 NwaCegarLoop]: Found error trace [2023-04-03 04:45:34,130 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-03 04:45:34,131 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-04-03 04:45:34,131 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-03 04:45:34,131 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-03 04:45:34,131 INFO L85 PathProgramCache]: Analyzing trace with hash 1802887464, now seen corresponding path program 1 times [2023-04-03 04:45:34,131 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-03 04:45:34,131 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [209194863] [2023-04-03 04:45:34,132 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-03 04:45:34,132 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-03 04:45:34,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-03 04:45:34,473 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2023-04-03 04:45:34,473 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-03 04:45:34,473 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [209194863] [2023-04-03 04:45:34,474 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [209194863] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-03 04:45:34,474 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-03 04:45:34,474 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-04-03 04:45:34,474 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [104301009] [2023-04-03 04:45:34,474 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-03 04:45:34,474 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-04-03 04:45:34,474 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-03 04:45:34,475 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-04-03 04:45:34,475 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-04-03 04:45:34,475 INFO L87 Difference]: Start difference. First operand 12311 states and 16556 transitions. Second operand has 3 states, 3 states have (on average 18.666666666666668) internal successors, (56), 3 states have internal predecessors, (56), 3 states have call successors, (26), 3 states have call predecessors, (26), 2 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2023-04-03 04:45:35,877 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-03 04:45:35,878 INFO L93 Difference]: Finished difference Result 12313 states and 16557 transitions. [2023-04-03 04:45:35,878 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-04-03 04:45:35,878 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 18.666666666666668) internal successors, (56), 3 states have internal predecessors, (56), 3 states have call successors, (26), 3 states have call predecessors, (26), 2 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) Word has length 144 [2023-04-03 04:45:35,879 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-03 04:45:35,932 INFO L225 Difference]: With dead ends: 12313 [2023-04-03 04:45:35,932 INFO L226 Difference]: Without dead ends: 12286 [2023-04-03 04:45:35,943 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-04-03 04:45:35,944 INFO L413 NwaCegarLoop]: 2094 mSDtfsCounter, 2257 mSDsluCounter, 1 mSDsCounter, 0 mSdLazyCounter, 217 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2257 SdHoareTripleChecker+Valid, 2095 SdHoareTripleChecker+Invalid, 217 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 217 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2023-04-03 04:45:35,944 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2257 Valid, 2095 Invalid, 217 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 217 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2023-04-03 04:45:35,958 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12286 states. [2023-04-03 04:45:36,714 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12286 to 12286. [2023-04-03 04:45:36,734 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12286 states, 7369 states have (on average 1.2836205726692902) internal successors, (9459), 7571 states have internal predecessors, (9459), 3479 states have call successors, (3479), 1462 states have call predecessors, (3479), 1437 states have return successors, (3588), 3360 states have call predecessors, (3588), 3472 states have call successors, (3588) [2023-04-03 04:45:36,775 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12286 states to 12286 states and 16526 transitions. [2023-04-03 04:45:36,777 INFO L78 Accepts]: Start accepts. Automaton has 12286 states and 16526 transitions. Word has length 144 [2023-04-03 04:45:36,777 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-03 04:45:36,777 INFO L495 AbstractCegarLoop]: Abstraction has 12286 states and 16526 transitions. [2023-04-03 04:45:36,778 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 18.666666666666668) internal successors, (56), 3 states have internal predecessors, (56), 3 states have call successors, (26), 3 states have call predecessors, (26), 2 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2023-04-03 04:45:36,778 INFO L276 IsEmpty]: Start isEmpty. Operand 12286 states and 16526 transitions. [2023-04-03 04:45:36,784 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 165 [2023-04-03 04:45:36,785 INFO L187 NwaCegarLoop]: Found error trace [2023-04-03 04:45:36,785 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 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] [2023-04-03 04:45:36,785 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-04-03 04:45:36,785 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-03 04:45:36,786 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-03 04:45:36,786 INFO L85 PathProgramCache]: Analyzing trace with hash 314159465, now seen corresponding path program 1 times [2023-04-03 04:45:36,786 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-03 04:45:36,786 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [513077698] [2023-04-03 04:45:36,786 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-03 04:45:36,786 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-03 04:45:36,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-03 04:45:37,153 INFO L134 CoverageAnalysis]: Checked inductivity of 366 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 366 trivial. 0 not checked. [2023-04-03 04:45:37,153 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-03 04:45:37,153 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [513077698] [2023-04-03 04:45:37,153 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [513077698] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-03 04:45:37,153 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-03 04:45:37,154 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-04-03 04:45:37,154 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [774549679] [2023-04-03 04:45:37,154 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-03 04:45:37,154 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-04-03 04:45:37,154 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-03 04:45:37,155 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-04-03 04:45:37,155 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-04-03 04:45:37,155 INFO L87 Difference]: Start difference. First operand 12286 states and 16526 transitions. Second operand has 3 states, 3 states have (on average 21.666666666666668) internal successors, (65), 3 states have internal predecessors, (65), 2 states have call successors, (32), 2 states have call predecessors, (32), 1 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) [2023-04-03 04:45:39,659 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-03 04:45:39,660 INFO L93 Difference]: Finished difference Result 36267 states and 48737 transitions. [2023-04-03 04:45:39,660 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-04-03 04:45:39,660 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 21.666666666666668) internal successors, (65), 3 states have internal predecessors, (65), 2 states have call successors, (32), 2 states have call predecessors, (32), 1 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) Word has length 164 [2023-04-03 04:45:39,661 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-03 04:45:39,753 INFO L225 Difference]: With dead ends: 36267 [2023-04-03 04:45:39,753 INFO L226 Difference]: Without dead ends: 24019 [2023-04-03 04:45:39,803 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-04-03 04:45:39,804 INFO L413 NwaCegarLoop]: 2109 mSDtfsCounter, 2177 mSDsluCounter, 2031 mSDsCounter, 0 mSdLazyCounter, 446 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2177 SdHoareTripleChecker+Valid, 4140 SdHoareTripleChecker+Invalid, 448 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 446 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2023-04-03 04:45:39,804 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2177 Valid, 4140 Invalid, 448 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 446 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2023-04-03 04:45:39,830 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24019 states. [2023-04-03 04:45:41,122 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24019 to 23951. [2023-04-03 04:45:41,157 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23951 states, 14376 states have (on average 1.2841541457985532) internal successors, (18461), 14774 states have internal predecessors, (18461), 6755 states have call successors, (6755), 2860 states have call predecessors, (6755), 2819 states have return successors, (6972), 6532 states have call predecessors, (6972), 6748 states have call successors, (6972) [2023-04-03 04:45:41,240 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23951 states to 23951 states and 32188 transitions. [2023-04-03 04:45:41,244 INFO L78 Accepts]: Start accepts. Automaton has 23951 states and 32188 transitions. Word has length 164 [2023-04-03 04:45:41,246 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-03 04:45:41,246 INFO L495 AbstractCegarLoop]: Abstraction has 23951 states and 32188 transitions. [2023-04-03 04:45:41,246 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 21.666666666666668) internal successors, (65), 3 states have internal predecessors, (65), 2 states have call successors, (32), 2 states have call predecessors, (32), 1 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) [2023-04-03 04:45:41,247 INFO L276 IsEmpty]: Start isEmpty. Operand 23951 states and 32188 transitions. [2023-04-03 04:45:41,259 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 221 [2023-04-03 04:45:41,260 INFO L187 NwaCegarLoop]: Found error trace [2023-04-03 04:45:41,260 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-03 04:45:41,260 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-04-03 04:45:41,260 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-03 04:45:41,260 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-03 04:45:41,260 INFO L85 PathProgramCache]: Analyzing trace with hash 1611863399, now seen corresponding path program 1 times [2023-04-03 04:45:41,261 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-03 04:45:41,261 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [235696231] [2023-04-03 04:45:41,261 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-03 04:45:41,261 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-03 04:45:41,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-03 04:45:41,669 INFO L134 CoverageAnalysis]: Checked inductivity of 368 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 368 trivial. 0 not checked. [2023-04-03 04:45:41,669 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-03 04:45:41,669 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [235696231] [2023-04-03 04:45:41,670 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [235696231] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-03 04:45:41,670 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-03 04:45:41,670 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-04-03 04:45:41,670 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [190410555] [2023-04-03 04:45:41,670 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-03 04:45:41,670 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-04-03 04:45:41,670 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-03 04:45:41,671 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-04-03 04:45:41,671 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-04-03 04:45:41,671 INFO L87 Difference]: Start difference. First operand 23951 states and 32188 transitions. Second operand has 3 states, 3 states have (on average 34.0) internal successors, (102), 3 states have internal predecessors, (102), 2 states have call successors, (44), 2 states have call predecessors, (44), 1 states have return successors, (33), 2 states have call predecessors, (33), 2 states have call successors, (33) [2023-04-03 04:45:45,551 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-03 04:45:45,551 INFO L93 Difference]: Finished difference Result 66046 states and 88426 transitions. [2023-04-03 04:45:45,552 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-04-03 04:45:45,553 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 34.0) internal successors, (102), 3 states have internal predecessors, (102), 2 states have call successors, (44), 2 states have call predecessors, (44), 1 states have return successors, (33), 2 states have call predecessors, (33), 2 states have call successors, (33) Word has length 220 [2023-04-03 04:45:45,553 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-03 04:45:45,754 INFO L225 Difference]: With dead ends: 66046 [2023-04-03 04:45:45,755 INFO L226 Difference]: Without dead ends: 42146 [2023-04-03 04:45:45,861 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-04-03 04:45:45,862 INFO L413 NwaCegarLoop]: 2176 mSDtfsCounter, 1803 mSDsluCounter, 1959 mSDsCounter, 0 mSdLazyCounter, 523 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1803 SdHoareTripleChecker+Valid, 4135 SdHoareTripleChecker+Invalid, 525 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 523 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2023-04-03 04:45:45,862 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1803 Valid, 4135 Invalid, 525 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [2 Valid, 523 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2023-04-03 04:45:45,908 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42146 states. [2023-04-03 04:45:48,138 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42146 to 42074. [2023-04-03 04:45:48,197 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 42074 states, 25138 states have (on average 1.2756782560267323) internal successors, (32068), 25872 states have internal predecessors, (32068), 11871 states have call successors, (11871), 5141 states have call predecessors, (11871), 5064 states have return successors, (12280), 11428 states have call predecessors, (12280), 11864 states have call successors, (12280) [2023-04-03 04:45:48,388 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42074 states to 42074 states and 56219 transitions. [2023-04-03 04:45:48,396 INFO L78 Accepts]: Start accepts. Automaton has 42074 states and 56219 transitions. Word has length 220 [2023-04-03 04:45:48,397 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-03 04:45:48,397 INFO L495 AbstractCegarLoop]: Abstraction has 42074 states and 56219 transitions. [2023-04-03 04:45:48,397 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 34.0) internal successors, (102), 3 states have internal predecessors, (102), 2 states have call successors, (44), 2 states have call predecessors, (44), 1 states have return successors, (33), 2 states have call predecessors, (33), 2 states have call successors, (33) [2023-04-03 04:45:48,397 INFO L276 IsEmpty]: Start isEmpty. Operand 42074 states and 56219 transitions. [2023-04-03 04:45:48,414 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 236 [2023-04-03 04:45:48,414 INFO L187 NwaCegarLoop]: Found error trace [2023-04-03 04:45:48,414 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-03 04:45:48,414 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-04-03 04:45:48,415 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-03 04:45:48,415 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-03 04:45:48,415 INFO L85 PathProgramCache]: Analyzing trace with hash 762945715, now seen corresponding path program 1 times [2023-04-03 04:45:48,415 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-03 04:45:48,415 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [361289105] [2023-04-03 04:45:48,415 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-03 04:45:48,416 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-03 04:45:48,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-03 04:45:48,882 INFO L134 CoverageAnalysis]: Checked inductivity of 376 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 376 trivial. 0 not checked. [2023-04-03 04:45:48,882 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-03 04:45:48,882 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [361289105] [2023-04-03 04:45:48,882 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [361289105] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-03 04:45:48,882 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-03 04:45:48,882 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-04-03 04:45:48,883 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [677499859] [2023-04-03 04:45:48,883 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-03 04:45:48,883 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-04-03 04:45:48,883 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-03 04:45:48,884 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-04-03 04:45:48,884 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-04-03 04:45:48,884 INFO L87 Difference]: Start difference. First operand 42074 states and 56219 transitions. Second operand has 3 states, 3 states have (on average 34.666666666666664) internal successors, (104), 3 states have internal predecessors, (104), 2 states have call successors, (47), 2 states have call predecessors, (47), 1 states have return successors, (37), 2 states have call predecessors, (37), 2 states have call successors, (37) [2023-04-03 04:45:53,253 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-03 04:45:53,253 INFO L93 Difference]: Finished difference Result 104503 states and 139128 transitions. [2023-04-03 04:45:53,254 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-04-03 04:45:53,254 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 34.666666666666664) internal successors, (104), 3 states have internal predecessors, (104), 2 states have call successors, (47), 2 states have call predecessors, (47), 1 states have return successors, (37), 2 states have call predecessors, (37), 2 states have call successors, (37) Word has length 235 [2023-04-03 04:45:53,254 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-03 04:45:53,694 INFO L225 Difference]: With dead ends: 104503 [2023-04-03 04:45:53,694 INFO L226 Difference]: Without dead ends: 62483 [2023-04-03 04:45:53,855 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-04-03 04:45:53,857 INFO L413 NwaCegarLoop]: 2137 mSDtfsCounter, 1514 mSDsluCounter, 2016 mSDsCounter, 0 mSdLazyCounter, 463 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1514 SdHoareTripleChecker+Valid, 4153 SdHoareTripleChecker+Invalid, 467 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 463 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2023-04-03 04:45:53,858 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1514 Valid, 4153 Invalid, 467 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 463 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2023-04-03 04:45:53,933 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62483 states. [2023-04-03 04:45:56,863 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62483 to 62352. [2023-04-03 04:45:56,930 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 62352 states, 37392 states have (on average 1.276609970047069) internal successors, (47735), 38510 states have internal predecessors, (47735), 17234 states have call successors, (17234), 7834 states have call predecessors, (17234), 7725 states have return successors, (17827), 16535 states have call predecessors, (17827), 17227 states have call successors, (17827) [2023-04-03 04:45:57,189 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62352 states to 62352 states and 82796 transitions. [2023-04-03 04:45:57,205 INFO L78 Accepts]: Start accepts. Automaton has 62352 states and 82796 transitions. Word has length 235 [2023-04-03 04:45:57,205 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-03 04:45:57,206 INFO L495 AbstractCegarLoop]: Abstraction has 62352 states and 82796 transitions. [2023-04-03 04:45:57,206 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 34.666666666666664) internal successors, (104), 3 states have internal predecessors, (104), 2 states have call successors, (47), 2 states have call predecessors, (47), 1 states have return successors, (37), 2 states have call predecessors, (37), 2 states have call successors, (37) [2023-04-03 04:45:57,206 INFO L276 IsEmpty]: Start isEmpty. Operand 62352 states and 82796 transitions. [2023-04-03 04:45:57,226 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 230 [2023-04-03 04:45:57,226 INFO L187 NwaCegarLoop]: Found error trace [2023-04-03 04:45:57,226 INFO L195 NwaCegarLoop]: trace histogram [17, 17, 17, 3, 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] [2023-04-03 04:45:57,226 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-04-03 04:45:57,226 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-03 04:45:57,227 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-03 04:45:57,227 INFO L85 PathProgramCache]: Analyzing trace with hash -607584924, now seen corresponding path program 1 times [2023-04-03 04:45:57,227 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-03 04:45:57,227 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1118203915] [2023-04-03 04:45:57,227 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-03 04:45:57,227 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-03 04:45:57,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-03 04:45:57,773 INFO L134 CoverageAnalysis]: Checked inductivity of 555 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 550 trivial. 0 not checked. [2023-04-03 04:45:57,773 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-03 04:45:57,773 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1118203915] [2023-04-03 04:45:57,773 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1118203915] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-03 04:45:57,773 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-03 04:45:57,773 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-04-03 04:45:57,773 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1637454725] [2023-04-03 04:45:57,773 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-03 04:45:57,774 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-04-03 04:45:57,774 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-03 04:45:57,775 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-04-03 04:45:57,775 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-04-03 04:45:57,776 INFO L87 Difference]: Start difference. First operand 62352 states and 82796 transitions. Second operand has 3 states, 3 states have (on average 32.666666666666664) internal successors, (98), 3 states have internal predecessors, (98), 3 states have call successors, (43), 2 states have call predecessors, (43), 1 states have return successors, (38), 3 states have call predecessors, (38), 3 states have call successors, (38) [2023-04-03 04:46:04,044 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-03 04:46:04,045 INFO L93 Difference]: Finished difference Result 154218 states and 204832 transitions. [2023-04-03 04:46:04,045 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-04-03 04:46:04,045 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 32.666666666666664) internal successors, (98), 3 states have internal predecessors, (98), 3 states have call successors, (43), 2 states have call predecessors, (43), 1 states have return successors, (38), 3 states have call predecessors, (38), 3 states have call successors, (38) Word has length 229 [2023-04-03 04:46:04,046 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-03 04:46:04,403 INFO L225 Difference]: With dead ends: 154218 [2023-04-03 04:46:04,403 INFO L226 Difference]: Without dead ends: 91928 [2023-04-03 04:46:04,539 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-04-03 04:46:04,540 INFO L413 NwaCegarLoop]: 3084 mSDtfsCounter, 2233 mSDsluCounter, 1984 mSDsCounter, 0 mSdLazyCounter, 561 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2233 SdHoareTripleChecker+Valid, 5068 SdHoareTripleChecker+Invalid, 567 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 561 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2023-04-03 04:46:04,540 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2233 Valid, 5068 Invalid, 567 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 561 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2023-04-03 04:46:04,634 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 91928 states. [2023-04-03 04:46:09,028 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 91928 to 91832. [2023-04-03 04:46:09,124 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 91832 states, 55212 states have (on average 1.2774215750199232) internal successors, (70529), 56842 states have internal predecessors, (70529), 25238 states have call successors, (25238), 11526 states have call predecessors, (25238), 11381 states have return successors, (26115), 24247 states have call predecessors, (26115), 25231 states have call successors, (26115) [2023-04-03 04:46:09,580 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 91832 states to 91832 states and 121882 transitions. [2023-04-03 04:46:09,613 INFO L78 Accepts]: Start accepts. Automaton has 91832 states and 121882 transitions. Word has length 229 [2023-04-03 04:46:09,614 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-03 04:46:09,614 INFO L495 AbstractCegarLoop]: Abstraction has 91832 states and 121882 transitions. [2023-04-03 04:46:09,614 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 32.666666666666664) internal successors, (98), 3 states have internal predecessors, (98), 3 states have call successors, (43), 2 states have call predecessors, (43), 1 states have return successors, (38), 3 states have call predecessors, (38), 3 states have call successors, (38) [2023-04-03 04:46:09,615 INFO L276 IsEmpty]: Start isEmpty. Operand 91832 states and 121882 transitions. [2023-04-03 04:46:09,635 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 230 [2023-04-03 04:46:09,635 INFO L187 NwaCegarLoop]: Found error trace [2023-04-03 04:46:09,635 INFO L195 NwaCegarLoop]: trace histogram [17, 17, 17, 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] [2023-04-03 04:46:09,635 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-04-03 04:46:09,635 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-03 04:46:09,636 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-03 04:46:09,636 INFO L85 PathProgramCache]: Analyzing trace with hash -1710132908, now seen corresponding path program 1 times [2023-04-03 04:46:09,636 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-03 04:46:09,636 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1691349045] [2023-04-03 04:46:09,637 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-03 04:46:09,637 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-03 04:46:10,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-03 04:46:10,499 INFO L134 CoverageAnalysis]: Checked inductivity of 553 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 548 trivial. 0 not checked. [2023-04-03 04:46:10,500 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-03 04:46:10,500 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1691349045] [2023-04-03 04:46:10,500 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1691349045] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-03 04:46:10,500 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-03 04:46:10,500 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-04-03 04:46:10,500 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [975952274] [2023-04-03 04:46:10,500 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-03 04:46:10,502 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-04-03 04:46:10,502 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-03 04:46:10,502 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-04-03 04:46:10,502 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-04-03 04:46:10,503 INFO L87 Difference]: Start difference. First operand 91832 states and 121882 transitions. Second operand has 5 states, 5 states have (on average 19.6) internal successors, (98), 4 states have internal predecessors, (98), 2 states have call successors, (43), 2 states have call predecessors, (43), 2 states have return successors, (38), 3 states have call predecessors, (38), 2 states have call successors, (38) [2023-04-03 04:46:17,522 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-03 04:46:17,522 INFO L93 Difference]: Finished difference Result 183855 states and 244023 transitions. [2023-04-03 04:46:17,523 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-04-03 04:46:17,523 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 19.6) internal successors, (98), 4 states have internal predecessors, (98), 2 states have call successors, (43), 2 states have call predecessors, (43), 2 states have return successors, (38), 3 states have call predecessors, (38), 2 states have call successors, (38) Word has length 229 [2023-04-03 04:46:17,537 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-03 04:46:18,015 INFO L225 Difference]: With dead ends: 183855 [2023-04-03 04:46:18,015 INFO L226 Difference]: Without dead ends: 92025 [2023-04-03 04:46:18,232 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-04-03 04:46:18,233 INFO L413 NwaCegarLoop]: 2097 mSDtfsCounter, 11 mSDsluCounter, 6277 mSDsCounter, 0 mSdLazyCounter, 886 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 8374 SdHoareTripleChecker+Invalid, 887 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 886 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.9s IncrementalHoareTripleChecker+Time [2023-04-03 04:46:18,233 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 8374 Invalid, 887 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 886 Invalid, 0 Unknown, 0 Unchecked, 2.9s Time] [2023-04-03 04:46:18,305 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 92025 states. [2023-04-03 04:46:22,364 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 92025 to 91913. [2023-04-03 04:46:22,448 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 91913 states, 55257 states have (on average 1.2769784823642254) internal successors, (70562), 56920 states have internal predecessors, (70562), 25238 states have call successors, (25238), 11526 states have call predecessors, (25238), 11417 states have return successors, (26151), 24250 states have call predecessors, (26151), 25231 states have call successors, (26151) [2023-04-03 04:46:22,965 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 91913 states to 91913 states and 121951 transitions. [2023-04-03 04:46:22,988 INFO L78 Accepts]: Start accepts. Automaton has 91913 states and 121951 transitions. Word has length 229 [2023-04-03 04:46:22,989 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-03 04:46:22,989 INFO L495 AbstractCegarLoop]: Abstraction has 91913 states and 121951 transitions. [2023-04-03 04:46:22,989 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.6) internal successors, (98), 4 states have internal predecessors, (98), 2 states have call successors, (43), 2 states have call predecessors, (43), 2 states have return successors, (38), 3 states have call predecessors, (38), 2 states have call successors, (38) [2023-04-03 04:46:22,989 INFO L276 IsEmpty]: Start isEmpty. Operand 91913 states and 121951 transitions. [2023-04-03 04:46:23,014 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 242 [2023-04-03 04:46:23,014 INFO L187 NwaCegarLoop]: Found error trace [2023-04-03 04:46:23,014 INFO L195 NwaCegarLoop]: trace histogram [17, 17, 17, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-03 04:46:23,014 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-04-03 04:46:23,015 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-03 04:46:23,015 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-03 04:46:23,015 INFO L85 PathProgramCache]: Analyzing trace with hash 361173783, now seen corresponding path program 1 times [2023-04-03 04:46:23,015 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-03 04:46:23,015 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1555091869] [2023-04-03 04:46:23,015 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-03 04:46:23,016 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-03 04:46:23,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-03 04:46:26,119 INFO L134 CoverageAnalysis]: Checked inductivity of 553 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 553 trivial. 0 not checked. [2023-04-03 04:46:26,120 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-03 04:46:26,120 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1555091869] [2023-04-03 04:46:26,120 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1555091869] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-03 04:46:26,120 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-03 04:46:26,120 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2023-04-03 04:46:26,120 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1487501003] [2023-04-03 04:46:26,120 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-03 04:46:26,121 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-04-03 04:46:26,121 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-03 04:46:26,121 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-04-03 04:46:26,122 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110 [2023-04-03 04:46:26,122 INFO L87 Difference]: Start difference. First operand 91913 states and 121951 transitions. Second operand has 11 states, 9 states have (on average 11.11111111111111) internal successors, (100), 9 states have internal predecessors, (100), 6 states have call successors, (46), 6 states have call predecessors, (46), 5 states have return successors, (41), 7 states have call predecessors, (41), 5 states have call successors, (41) [2023-04-03 04:46:29,307 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-04-03 04:46:31,314 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-04-03 04:46:33,321 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-04-03 04:46:35,328 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-04-03 04:46:37,350 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-04-03 04:46:39,364 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-04-03 04:46:41,368 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-04-03 04:46:54,739 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-04-03 04:46:56,745 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-04-03 04:46:58,753 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-04-03 04:47:00,761 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-04-03 04:47:02,766 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-04-03 04:47:04,774 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-04-03 04:47:06,780 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-04-03 04:47:08,785 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-04-03 04:47:19,030 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-03 04:47:19,030 INFO L93 Difference]: Finished difference Result 104735 states and 138615 transitions. [2023-04-03 04:47:19,030 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2023-04-03 04:47:19,030 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 9 states have (on average 11.11111111111111) internal successors, (100), 9 states have internal predecessors, (100), 6 states have call successors, (46), 6 states have call predecessors, (46), 5 states have return successors, (41), 7 states have call predecessors, (41), 5 states have call successors, (41) Word has length 241 [2023-04-03 04:47:19,031 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-03 04:47:19,498 INFO L225 Difference]: With dead ends: 104735 [2023-04-03 04:47:19,498 INFO L226 Difference]: Without dead ends: 104732 [2023-04-03 04:47:19,550 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=77, Invalid=229, Unknown=0, NotChecked=0, Total=306 [2023-04-03 04:47:19,551 INFO L413 NwaCegarLoop]: 911 mSDtfsCounter, 4843 mSDsluCounter, 3717 mSDsCounter, 0 mSdLazyCounter, 13746 mSolverCounterSat, 2919 mSolverCounterUnsat, 15 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 47.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5238 SdHoareTripleChecker+Valid, 4628 SdHoareTripleChecker+Invalid, 16680 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2919 IncrementalHoareTripleChecker+Valid, 13746 IncrementalHoareTripleChecker+Invalid, 15 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 48.7s IncrementalHoareTripleChecker+Time [2023-04-03 04:47:19,551 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5238 Valid, 4628 Invalid, 16680 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2919 Valid, 13746 Invalid, 15 Unknown, 0 Unchecked, 48.7s Time] [2023-04-03 04:47:19,636 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 104732 states. [2023-04-03 04:47:24,675 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 104732 to 104473. [2023-04-03 04:47:24,789 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 104473 states, 62545 states have (on average 1.267791190342953) internal successors, (79294), 64624 states have internal predecessors, (79294), 28354 states have call successors, (28354), 12950 states have call predecessors, (28354), 13573 states have return successors, (30651), 27806 states have call predecessors, (30651), 28347 states have call successors, (30651) [2023-04-03 04:47:25,345 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104473 states to 104473 states and 138299 transitions. [2023-04-03 04:47:25,349 INFO L78 Accepts]: Start accepts. Automaton has 104473 states and 138299 transitions. Word has length 241 [2023-04-03 04:47:25,350 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-03 04:47:25,350 INFO L495 AbstractCegarLoop]: Abstraction has 104473 states and 138299 transitions. [2023-04-03 04:47:25,350 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 9 states have (on average 11.11111111111111) internal successors, (100), 9 states have internal predecessors, (100), 6 states have call successors, (46), 6 states have call predecessors, (46), 5 states have return successors, (41), 7 states have call predecessors, (41), 5 states have call successors, (41) [2023-04-03 04:47:25,351 INFO L276 IsEmpty]: Start isEmpty. Operand 104473 states and 138299 transitions. [2023-04-03 04:47:25,380 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 251 [2023-04-03 04:47:25,381 INFO L187 NwaCegarLoop]: Found error trace [2023-04-03 04:47:25,381 INFO L195 NwaCegarLoop]: trace histogram [17, 17, 17, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-03 04:47:25,381 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-04-03 04:47:25,381 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-03 04:47:25,382 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-03 04:47:25,382 INFO L85 PathProgramCache]: Analyzing trace with hash 1144836683, now seen corresponding path program 1 times [2023-04-03 04:47:25,382 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-03 04:47:25,382 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [439750966] [2023-04-03 04:47:25,382 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-03 04:47:25,382 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-03 04:47:25,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-03 04:47:28,764 INFO L134 CoverageAnalysis]: Checked inductivity of 565 backedges. 12 proven. 1 refuted. 0 times theorem prover too weak. 552 trivial. 0 not checked. [2023-04-03 04:47:28,765 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-03 04:47:28,765 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [439750966] [2023-04-03 04:47:28,765 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [439750966] provided 0 perfect and 1 imperfect interpolant sequences [2023-04-03 04:47:28,765 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1474188737] [2023-04-03 04:47:28,765 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-03 04:47:28,765 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-03 04:47:28,766 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-03 04:47:28,769 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-04-03 04:47:28,773 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-04-03 04:47:30,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-03 04:47:30,179 INFO L262 TraceCheckSpWp]: Trace formula consists of 7174 conjuncts, 13 conjunts are in the unsatisfiable core [2023-04-03 04:47:30,196 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-04-03 04:47:30,321 INFO L134 CoverageAnalysis]: Checked inductivity of 565 backedges. 184 proven. 0 refuted. 0 times theorem prover too weak. 381 trivial. 0 not checked. [2023-04-03 04:47:30,321 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-04-03 04:47:30,321 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1474188737] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-03 04:47:30,322 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-04-03 04:47:30,322 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [14] total 18 [2023-04-03 04:47:30,322 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [532550305] [2023-04-03 04:47:30,322 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-03 04:47:30,322 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-04-03 04:47:30,323 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-03 04:47:30,323 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-04-03 04:47:30,323 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=272, Unknown=0, NotChecked=0, Total=306 [2023-04-03 04:47:30,324 INFO L87 Difference]: Start difference. First operand 104473 states and 138299 transitions. Second operand has 6 states, 6 states have (on average 18.666666666666668) internal successors, (112), 5 states have internal predecessors, (112), 3 states have call successors, (46), 2 states have call predecessors, (46), 3 states have return successors, (43), 4 states have call predecessors, (43), 3 states have call successors, (43) [2023-04-03 04:47:36,040 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-03 04:47:36,040 INFO L93 Difference]: Finished difference Result 158882 states and 210006 transitions. [2023-04-03 04:47:36,041 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-04-03 04:47:36,041 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 18.666666666666668) internal successors, (112), 5 states have internal predecessors, (112), 3 states have call successors, (46), 2 states have call predecessors, (46), 3 states have return successors, (43), 4 states have call predecessors, (43), 3 states have call successors, (43) Word has length 250 [2023-04-03 04:47:36,041 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-03 04:47:36,299 INFO L225 Difference]: With dead ends: 158882 [2023-04-03 04:47:36,299 INFO L226 Difference]: Without dead ends: 54327