/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/default/taipan/svcomp-Reach-32bit-Taipan_Default.epf -tc ../../../trunk/examples/toolchains/AutomizerC.xml --sifa.abstract.domain OctagonDomain -i ../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--scsi--osst.ko-entry_point.cil.out.i -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-f954360 [2023-04-03 06:00:25,395 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-04-03 06:00:25,396 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-04-03 06:00:25,433 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-04-03 06:00:25,433 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-04-03 06:00:25,438 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-04-03 06:00:25,442 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-04-03 06:00:25,444 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-04-03 06:00:25,446 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-04-03 06:00:25,453 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-04-03 06:00:25,455 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-04-03 06:00:25,457 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-04-03 06:00:25,458 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-04-03 06:00:25,460 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-04-03 06:00:25,462 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-04-03 06:00:25,463 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-04-03 06:00:25,464 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-04-03 06:00:25,465 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-04-03 06:00:25,469 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-04-03 06:00:25,474 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-04-03 06:00:25,475 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-04-03 06:00:25,476 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-04-03 06:00:25,477 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-04-03 06:00:25,481 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-04-03 06:00:25,484 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-04-03 06:00:25,484 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-04-03 06:00:25,485 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-04-03 06:00:25,485 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-04-03 06:00:25,486 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-04-03 06:00:25,486 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-04-03 06:00:25,487 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-04-03 06:00:25,487 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-04-03 06:00:25,488 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-04-03 06:00:25,488 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-04-03 06:00:25,489 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-04-03 06:00:25,489 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-04-03 06:00:25,490 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-04-03 06:00:25,490 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-04-03 06:00:25,490 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-04-03 06:00:25,491 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-04-03 06:00:25,491 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-04-03 06:00:25,495 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/taipan/svcomp-Reach-32bit-Taipan_Default.epf [2023-04-03 06:00:25,532 INFO L113 SettingsManager]: Loading preferences was successful [2023-04-03 06:00:25,532 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-04-03 06:00:25,533 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-04-03 06:00:25,533 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-04-03 06:00:25,534 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-04-03 06:00:25,534 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-04-03 06:00:25,534 INFO L138 SettingsManager]: * User list type=DISABLED [2023-04-03 06:00:25,534 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-04-03 06:00:25,535 INFO L138 SettingsManager]: * Explicit value domain=true [2023-04-03 06:00:25,535 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-04-03 06:00:25,535 INFO L138 SettingsManager]: * Octagon Domain=false [2023-04-03 06:00:25,536 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2023-04-03 06:00:25,536 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-04-03 06:00:25,536 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-04-03 06:00:25,536 INFO L138 SettingsManager]: * Interval Domain=false [2023-04-03 06:00:25,536 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-04-03 06:00:25,536 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-04-03 06:00:25,536 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2023-04-03 06:00:25,537 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-04-03 06:00:25,537 INFO L138 SettingsManager]: * sizeof long=4 [2023-04-03 06:00:25,537 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-04-03 06:00:25,538 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-04-03 06:00:25,538 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-04-03 06:00:25,538 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-04-03 06:00:25,538 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-04-03 06:00:25,538 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-04-03 06:00:25,538 INFO L138 SettingsManager]: * sizeof long double=12 [2023-04-03 06:00:25,539 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-04-03 06:00:25,539 INFO L138 SettingsManager]: * Use constant arrays=true [2023-04-03 06:00:25,539 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-04-03 06:00:25,539 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-04-03 06:00:25,539 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-04-03 06:00:25,540 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-04-03 06:00:25,540 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-04-03 06:00:25,540 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2023-04-03 06:00:25,540 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-04-03 06:00:25,540 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-04-03 06:00:25,540 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-04-03 06:00:25,540 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-04-03 06:00:25,541 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-04-03 06:00:25,541 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-04-03 06:00:25,541 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Abstract Domain -> OctagonDomain [2023-04-03 06:00:25,802 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-04-03 06:00:25,827 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-04-03 06:00:25,830 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-04-03 06:00:25,831 INFO L271 PluginConnector]: Initializing CDTParser... [2023-04-03 06:00:25,832 INFO L275 PluginConnector]: CDTParser initialized [2023-04-03 06:00:25,833 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--scsi--osst.ko-entry_point.cil.out.i [2023-04-03 06:00:27,194 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-04-03 06:00:27,839 INFO L351 CDTParser]: Found 1 translation units. [2023-04-03 06:00:27,840 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--scsi--osst.ko-entry_point.cil.out.i [2023-04-03 06:00:27,901 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/17684c119/7ee31591139c486db51e51e4768d1adc/FLAGb7aa9af63 [2023-04-03 06:00:27,921 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/17684c119/7ee31591139c486db51e51e4768d1adc [2023-04-03 06:00:27,924 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-04-03 06:00:27,926 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2023-04-03 06:00:27,928 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-04-03 06:00:27,928 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-04-03 06:00:27,931 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-04-03 06:00:27,932 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.04 06:00:27" (1/1) ... [2023-04-03 06:00:27,933 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7d1b9b4b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.04 06:00:27, skipping insertion in model container [2023-04-03 06:00:27,934 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.04 06:00:27" (1/1) ... [2023-04-03 06:00:27,940 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-04-03 06:00:28,096 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-04-03 06:00:30,827 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--scsi--osst.ko-entry_point.cil.out.i[358518,358531] [2023-04-03 06:00:31,217 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-04-03 06:00:31,252 INFO L203 MainTranslator]: Completed pre-run [2023-04-03 06:00:31,640 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--scsi--osst.ko-entry_point.cil.out.i[358518,358531] [2023-04-03 06:00:31,653 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-04-03 06:00:31,736 WARN L667 CHandler]: The function strncmp is called, but not defined or handled by StandardFunctionHandler. [2023-04-03 06:00:31,737 WARN L667 CHandler]: The function memcmp is called, but not defined or handled by StandardFunctionHandler. [2023-04-03 06:00:31,737 WARN L667 CHandler]: The function sprintf is called, but not defined or handled by StandardFunctionHandler. [2023-04-03 06:00:31,737 WARN L667 CHandler]: The function __bad_percpu_size is called, but not defined or handled by StandardFunctionHandler. [2023-04-03 06:00:31,743 INFO L208 MainTranslator]: Completed translation [2023-04-03 06:00:31,744 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.04 06:00:31 WrapperNode [2023-04-03 06:00:31,744 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-04-03 06:00:31,745 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-04-03 06:00:31,745 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-04-03 06:00:31,745 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-04-03 06:00:31,758 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.04 06:00:31" (1/1) ... [2023-04-03 06:00:31,758 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.04 06:00:31" (1/1) ... [2023-04-03 06:00:31,985 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.04 06:00:31" (1/1) ... [2023-04-03 06:00:31,986 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.04 06:00:31" (1/1) ... [2023-04-03 06:00:32,190 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.04 06:00:31" (1/1) ... [2023-04-03 06:00:32,234 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.04 06:00:31" (1/1) ... [2023-04-03 06:00:32,269 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.04 06:00:31" (1/1) ... [2023-04-03 06:00:32,306 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.04 06:00:31" (1/1) ... [2023-04-03 06:00:32,367 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-04-03 06:00:32,370 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-04-03 06:00:32,370 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-04-03 06:00:32,370 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-04-03 06:00:32,371 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.04 06:00:31" (1/1) ... [2023-04-03 06:00:32,377 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-04-03 06:00:32,387 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-03 06:00:32,404 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-04-03 06:00:32,436 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-04-03 06:00:32,455 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2023-04-03 06:00:32,456 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-04-03 06:00:32,456 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~int~X~$Pointer$~TO~int [2023-04-03 06:00:32,456 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2023-04-03 06:00:32,456 INFO L138 BoogieDeclarations]: Found implementation of procedure variable_test_bit [2023-04-03 06:00:32,456 INFO L138 BoogieDeclarations]: Found implementation of procedure fls64 [2023-04-03 06:00:32,456 INFO L138 BoogieDeclarations]: Found implementation of procedure __arch_swab32 [2023-04-03 06:00:32,456 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab16 [2023-04-03 06:00:32,456 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab32 [2023-04-03 06:00:32,456 INFO L138 BoogieDeclarations]: Found implementation of procedure get_current [2023-04-03 06:00:32,457 INFO L138 BoogieDeclarations]: Found implementation of procedure __get_order [2023-04-03 06:00:32,457 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic64_read [2023-04-03 06:00:32,457 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_long_read [2023-04-03 06:00:32,457 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-04-03 06:00:32,457 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2023-04-03 06:00:32,457 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2023-04-03 06:00:32,457 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_zalloc [2023-04-03 06:00:32,457 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_memset [2023-04-03 06:00:32,457 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2023-04-03 06:00:32,457 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_ulong [2023-04-03 06:00:32,457 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2023-04-03 06:00:32,457 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2023-04-03 06:00:32,457 INFO L138 BoogieDeclarations]: Found implementation of procedure test_ti_thread_flag [2023-04-03 06:00:32,458 INFO L138 BoogieDeclarations]: Found implementation of procedure init_completion [2023-04-03 06:00:32,458 INFO L138 BoogieDeclarations]: Found implementation of procedure msecs_to_jiffies [2023-04-03 06:00:32,458 INFO L138 BoogieDeclarations]: Found implementation of procedure alloc_pages [2023-04-03 06:00:32,458 INFO L138 BoogieDeclarations]: Found implementation of procedure test_tsk_thread_flag [2023-04-03 06:00:32,458 INFO L138 BoogieDeclarations]: Found implementation of procedure signal_pending [2023-04-03 06:00:32,458 INFO L138 BoogieDeclarations]: Found implementation of procedure __kmalloc [2023-04-03 06:00:32,458 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2023-04-03 06:00:32,458 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2023-04-03 06:00:32,458 INFO L138 BoogieDeclarations]: Found implementation of procedure iminor [2023-04-03 06:00:32,459 INFO L138 BoogieDeclarations]: Found implementation of procedure register_chrdev [2023-04-03 06:00:32,459 INFO L138 BoogieDeclarations]: Found implementation of procedure unregister_chrdev [2023-04-03 06:00:32,459 INFO L138 BoogieDeclarations]: Found implementation of procedure lowmem_page_address [2023-04-03 06:00:32,459 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_get_drvdata [2023-04-03 06:00:32,459 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_from_user [2023-04-03 06:00:32,460 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_to_user [2023-04-03 06:00:32,460 INFO L138 BoogieDeclarations]: Found implementation of procedure sg_assign_page [2023-04-03 06:00:32,460 INFO L138 BoogieDeclarations]: Found implementation of procedure sg_set_page [2023-04-03 06:00:32,460 INFO L138 BoogieDeclarations]: Found implementation of procedure sg_page [2023-04-03 06:00:32,461 INFO L138 BoogieDeclarations]: Found implementation of procedure tape_name [2023-04-03 06:00:32,461 INFO L138 BoogieDeclarations]: Found implementation of procedure osst_analyze_sense [2023-04-03 06:00:32,461 INFO L138 BoogieDeclarations]: Found implementation of procedure osst_chk_result [2023-04-03 06:00:32,461 INFO L138 BoogieDeclarations]: Found implementation of procedure osst_end_async [2023-04-03 06:00:32,461 INFO L138 BoogieDeclarations]: Found implementation of procedure osst_allocate_request [2023-04-03 06:00:32,461 INFO L138 BoogieDeclarations]: Found implementation of procedure osst_release_request [2023-04-03 06:00:32,461 INFO L138 BoogieDeclarations]: Found implementation of procedure osst_execute [2023-04-03 06:00:32,461 INFO L138 BoogieDeclarations]: Found implementation of procedure osst_do_scsi [2023-04-03 06:00:32,462 INFO L138 BoogieDeclarations]: Found implementation of procedure osst_write_behind_check [2023-04-03 06:00:32,462 INFO L138 BoogieDeclarations]: Found implementation of procedure osst_init_aux [2023-04-03 06:00:32,462 INFO L138 BoogieDeclarations]: Found implementation of procedure osst_verify_frame [2023-04-03 06:00:32,462 INFO L138 BoogieDeclarations]: Found implementation of procedure osst_wait_ready [2023-04-03 06:00:32,462 INFO L138 BoogieDeclarations]: Found implementation of procedure osst_wait_for_medium [2023-04-03 06:00:32,462 INFO L138 BoogieDeclarations]: Found implementation of procedure osst_position_tape_and_confirm [2023-04-03 06:00:32,462 INFO L138 BoogieDeclarations]: Found implementation of procedure osst_flush_drive_buffer [2023-04-03 06:00:32,463 INFO L138 BoogieDeclarations]: Found implementation of procedure osst_wait_frame [2023-04-03 06:00:32,463 INFO L138 BoogieDeclarations]: Found implementation of procedure osst_recover_wait_frame [2023-04-03 06:00:32,463 INFO L138 BoogieDeclarations]: Found implementation of procedure osst_read_frame [2023-04-03 06:00:32,463 INFO L138 BoogieDeclarations]: Found implementation of procedure osst_initiate_read [2023-04-03 06:00:32,463 INFO L138 BoogieDeclarations]: Found implementation of procedure osst_get_logical_frame [2023-04-03 06:00:32,463 INFO L138 BoogieDeclarations]: Found implementation of procedure osst_seek_logical_blk [2023-04-03 06:00:32,463 INFO L138 BoogieDeclarations]: Found implementation of procedure osst_get_sector [2023-04-03 06:00:32,463 INFO L138 BoogieDeclarations]: Found implementation of procedure osst_seek_sector [2023-04-03 06:00:32,463 INFO L138 BoogieDeclarations]: Found implementation of procedure osst_read_back_buffer_and_rewrite [2023-04-03 06:00:32,463 INFO L138 BoogieDeclarations]: Found implementation of procedure osst_reposition_and_retry [2023-04-03 06:00:32,463 INFO L138 BoogieDeclarations]: Found implementation of procedure osst_write_error_recovery [2023-04-03 06:00:32,463 INFO L138 BoogieDeclarations]: Found implementation of procedure osst_space_over_filemarks_backward [2023-04-03 06:00:32,464 INFO L138 BoogieDeclarations]: Found implementation of procedure osst_space_over_filemarks_forward_slow [2023-04-03 06:00:32,464 INFO L138 BoogieDeclarations]: Found implementation of procedure osst_space_over_filemarks_forward_fast [2023-04-03 06:00:32,464 INFO L138 BoogieDeclarations]: Found implementation of procedure osst_write_filemark [2023-04-03 06:00:32,464 INFO L138 BoogieDeclarations]: Found implementation of procedure osst_write_eod [2023-04-03 06:00:32,464 INFO L138 BoogieDeclarations]: Found implementation of procedure osst_write_filler [2023-04-03 06:00:32,464 INFO L138 BoogieDeclarations]: Found implementation of procedure __osst_write_header [2023-04-03 06:00:32,464 INFO L138 BoogieDeclarations]: Found implementation of procedure osst_write_header [2023-04-03 06:00:32,465 INFO L138 BoogieDeclarations]: Found implementation of procedure osst_reset_header [2023-04-03 06:00:32,465 INFO L138 BoogieDeclarations]: Found implementation of procedure __osst_analyze_headers [2023-04-03 06:00:32,466 INFO L138 BoogieDeclarations]: Found implementation of procedure osst_analyze_headers [2023-04-03 06:00:32,466 INFO L138 BoogieDeclarations]: Found implementation of procedure osst_verify_position [2023-04-03 06:00:32,466 INFO L138 BoogieDeclarations]: Found implementation of procedure osst_parse_firmware_rev [2023-04-03 06:00:32,466 INFO L138 BoogieDeclarations]: Found implementation of procedure osst_configure_onstream [2023-04-03 06:00:32,466 INFO L138 BoogieDeclarations]: Found implementation of procedure cross_eof [2023-04-03 06:00:32,466 INFO L138 BoogieDeclarations]: Found implementation of procedure osst_get_frame_position [2023-04-03 06:00:32,466 INFO L138 BoogieDeclarations]: Found implementation of procedure osst_set_frame_position [2023-04-03 06:00:32,467 INFO L138 BoogieDeclarations]: Found implementation of procedure osst_write_trailer [2023-04-03 06:00:32,467 INFO L138 BoogieDeclarations]: Found implementation of procedure osst_flush_write_buffer [2023-04-03 06:00:32,467 INFO L138 BoogieDeclarations]: Found implementation of procedure osst_flush_buffer [2023-04-03 06:00:32,467 INFO L138 BoogieDeclarations]: Found implementation of procedure osst_write_frame [2023-04-03 06:00:32,467 INFO L138 BoogieDeclarations]: Found implementation of procedure do_door_lock [2023-04-03 06:00:32,467 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_state [2023-04-03 06:00:32,467 INFO L138 BoogieDeclarations]: Found implementation of procedure osst_write [2023-04-03 06:00:32,467 INFO L138 BoogieDeclarations]: Found implementation of procedure osst_read [2023-04-03 06:00:32,467 INFO L138 BoogieDeclarations]: Found implementation of procedure osst_log_options [2023-04-03 06:00:32,467 INFO L138 BoogieDeclarations]: Found implementation of procedure osst_set_options [2023-04-03 06:00:32,467 INFO L138 BoogieDeclarations]: Found implementation of procedure osst_int_ioctl [2023-04-03 06:00:32,467 INFO L138 BoogieDeclarations]: Found implementation of procedure __os_scsi_tape_open [2023-04-03 06:00:32,467 INFO L138 BoogieDeclarations]: Found implementation of procedure os_scsi_tape_open [2023-04-03 06:00:32,468 INFO L138 BoogieDeclarations]: Found implementation of procedure os_scsi_tape_flush [2023-04-03 06:00:32,468 INFO L138 BoogieDeclarations]: Found implementation of procedure os_scsi_tape_close [2023-04-03 06:00:32,468 INFO L138 BoogieDeclarations]: Found implementation of procedure osst_ioctl [2023-04-03 06:00:32,468 INFO L138 BoogieDeclarations]: Found implementation of procedure osst_compat_ioctl [2023-04-03 06:00:32,468 INFO L138 BoogieDeclarations]: Found implementation of procedure new_tape_buffer [2023-04-03 06:00:32,468 INFO L138 BoogieDeclarations]: Found implementation of procedure enlarge_buffer [2023-04-03 06:00:32,468 INFO L138 BoogieDeclarations]: Found implementation of procedure normalize_buffer [2023-04-03 06:00:32,468 INFO L138 BoogieDeclarations]: Found implementation of procedure append_to_buffer [2023-04-03 06:00:32,468 INFO L138 BoogieDeclarations]: Found implementation of procedure from_buffer [2023-04-03 06:00:32,469 INFO L138 BoogieDeclarations]: Found implementation of procedure osst_zero_buffer_tail [2023-04-03 06:00:32,469 INFO L138 BoogieDeclarations]: Found implementation of procedure osst_copy_to_buffer [2023-04-03 06:00:32,469 INFO L138 BoogieDeclarations]: Found implementation of procedure osst_copy_from_buffer [2023-04-03 06:00:32,469 INFO L138 BoogieDeclarations]: Found implementation of procedure validate_options [2023-04-03 06:00:32,469 INFO L138 BoogieDeclarations]: Found implementation of procedure osst_supports [2023-04-03 06:00:32,469 INFO L138 BoogieDeclarations]: Found implementation of procedure osst_version_show [2023-04-03 06:00:32,469 INFO L138 BoogieDeclarations]: Found implementation of procedure osst_create_sysfs_files [2023-04-03 06:00:32,470 INFO L138 BoogieDeclarations]: Found implementation of procedure osst_remove_sysfs_files [2023-04-03 06:00:32,470 INFO L138 BoogieDeclarations]: Found implementation of procedure osst_adr_rev_show [2023-04-03 06:00:32,470 INFO L138 BoogieDeclarations]: Found implementation of procedure osst_linux_media_version_show [2023-04-03 06:00:32,471 INFO L138 BoogieDeclarations]: Found implementation of procedure osst_capacity_show [2023-04-03 06:00:32,471 INFO L138 BoogieDeclarations]: Found implementation of procedure osst_first_data_ppos_show [2023-04-03 06:00:32,474 INFO L138 BoogieDeclarations]: Found implementation of procedure osst_eod_frame_ppos_show [2023-04-03 06:00:32,474 INFO L138 BoogieDeclarations]: Found implementation of procedure osst_filemark_cnt_show [2023-04-03 06:00:32,480 INFO L138 BoogieDeclarations]: Found implementation of procedure osst_sysfs_init [2023-04-03 06:00:32,480 INFO L138 BoogieDeclarations]: Found implementation of procedure osst_sysfs_destroy [2023-04-03 06:00:32,480 INFO L138 BoogieDeclarations]: Found implementation of procedure osst_sysfs_add [2023-04-03 06:00:32,480 INFO L138 BoogieDeclarations]: Found implementation of procedure osst_sysfs_cleanup [2023-04-03 06:00:32,480 INFO L138 BoogieDeclarations]: Found implementation of procedure osst_probe [2023-04-03 06:00:32,480 INFO L138 BoogieDeclarations]: Found implementation of procedure osst_remove [2023-04-03 06:00:32,480 INFO L138 BoogieDeclarations]: Found implementation of procedure init_osst [2023-04-03 06:00:32,480 INFO L138 BoogieDeclarations]: Found implementation of procedure exit_osst [2023-04-03 06:00:32,481 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize_scsi_driver_9 [2023-04-03 06:00:32,481 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_file_operations_8 [2023-04-03 06:00:32,481 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2023-04-03 06:00:32,481 INFO L138 BoogieDeclarations]: Found implementation of procedure PTR_ERR [2023-04-03 06:00:32,481 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2023-04-03 06:00:32,481 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_5 [2023-04-03 06:00:32,481 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_6 [2023-04-03 06:00:32,481 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_7 [2023-04-03 06:00:32,481 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_8 [2023-04-03 06:00:32,481 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_9 [2023-04-03 06:00:32,481 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_trylock_10 [2023-04-03 06:00:32,481 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_11 [2023-04-03 06:00:32,481 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_interruptible_12 [2023-04-03 06:00:32,481 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_13 [2023-04-03 06:00:32,481 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_interruptible_14 [2023-04-03 06:00:32,482 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_15 [2023-04-03 06:00:32,482 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_16 [2023-04-03 06:00:32,482 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_17 [2023-04-03 06:00:32,482 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_18 [2023-04-03 06:00:32,482 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_interruptible_19 [2023-04-03 06:00:32,482 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_20 [2023-04-03 06:00:32,482 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_21 [2023-04-03 06:00:32,482 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_22 [2023-04-03 06:00:32,482 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_23 [2023-04-03 06:00:32,482 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_24 [2023-04-03 06:00:32,482 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_register_chrdev_25 [2023-04-03 06:00:32,482 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_unregister_chrdev_26 [2023-04-03 06:00:32,482 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2023-04-03 06:00:32,482 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int_negative [2023-04-03 06:00:32,482 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2023-04-03 06:00:32,482 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_err_ptr [2023-04-03 06:00:32,482 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_ptr_err [2023-04-03 06:00:32,483 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err_or_null [2023-04-03 06:00:32,483 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_interruptible_i_mutex_of_inode [2023-04-03 06:00:32,483 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_killable_i_mutex_of_inode [2023-04-03 06:00:32,483 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_i_mutex_of_inode [2023-04-03 06:00:32,483 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_trylock_i_mutex_of_inode [2023-04-03 06:00:32,483 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_dec_and_mutex_lock_i_mutex_of_inode [2023-04-03 06:00:32,483 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_is_locked_i_mutex_of_inode [2023-04-03 06:00:32,483 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_i_mutex_of_inode [2023-04-03 06:00:32,483 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_lock_device_i_mutex_of_inode [2023-04-03 06:00:32,483 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_trylock_device_i_mutex_of_inode [2023-04-03 06:00:32,483 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_lock_device_for_reset_i_mutex_of_inode [2023-04-03 06:00:32,484 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_unlock_device_i_mutex_of_inode [2023-04-03 06:00:32,484 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_interruptible_lock [2023-04-03 06:00:32,484 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_killable_lock [2023-04-03 06:00:32,484 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_lock [2023-04-03 06:00:32,484 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_trylock_lock [2023-04-03 06:00:32,484 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_dec_and_mutex_lock_lock [2023-04-03 06:00:32,484 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_is_locked_lock [2023-04-03 06:00:32,484 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_lock [2023-04-03 06:00:32,484 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_lock_device_lock [2023-04-03 06:00:32,484 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_trylock_device_lock [2023-04-03 06:00:32,484 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_lock_device_for_reset_lock [2023-04-03 06:00:32,484 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_unlock_device_lock [2023-04-03 06:00:32,484 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_interruptible_lock_of_osst_tape [2023-04-03 06:00:32,484 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_killable_lock_of_osst_tape [2023-04-03 06:00:32,485 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_lock_of_osst_tape [2023-04-03 06:00:32,485 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_trylock_lock_of_osst_tape [2023-04-03 06:00:32,485 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_dec_and_mutex_lock_lock_of_osst_tape [2023-04-03 06:00:32,485 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_is_locked_lock_of_osst_tape [2023-04-03 06:00:32,485 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_lock_of_osst_tape [2023-04-03 06:00:32,485 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_lock_device_lock_of_osst_tape [2023-04-03 06:00:32,485 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_trylock_device_lock_of_osst_tape [2023-04-03 06:00:32,485 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_lock_device_for_reset_lock_of_osst_tape [2023-04-03 06:00:32,485 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_unlock_device_lock_of_osst_tape [2023-04-03 06:00:32,485 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_interruptible_mutex_of_device [2023-04-03 06:00:32,485 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_killable_mutex_of_device [2023-04-03 06:00:32,485 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_mutex_of_device [2023-04-03 06:00:32,485 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_trylock_mutex_of_device [2023-04-03 06:00:32,485 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_dec_and_mutex_lock_mutex_of_device [2023-04-03 06:00:32,485 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_is_locked_mutex_of_device [2023-04-03 06:00:32,486 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_mutex_of_device [2023-04-03 06:00:32,486 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_lock_device_mutex_of_device [2023-04-03 06:00:32,486 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_trylock_device_mutex_of_device [2023-04-03 06:00:32,486 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_lock_device_for_reset_mutex_of_device [2023-04-03 06:00:32,486 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_unlock_device_mutex_of_device [2023-04-03 06:00:32,486 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_interruptible_osst_int_mutex [2023-04-03 06:00:32,486 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_killable_osst_int_mutex [2023-04-03 06:00:32,486 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_osst_int_mutex [2023-04-03 06:00:32,486 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_trylock_osst_int_mutex [2023-04-03 06:00:32,486 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_dec_and_mutex_lock_osst_int_mutex [2023-04-03 06:00:32,486 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_is_locked_osst_int_mutex [2023-04-03 06:00:32,486 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_osst_int_mutex [2023-04-03 06:00:32,486 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_lock_device_osst_int_mutex [2023-04-03 06:00:32,486 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_trylock_device_osst_int_mutex [2023-04-03 06:00:32,486 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_lock_device_for_reset_osst_int_mutex [2023-04-03 06:00:32,486 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_unlock_device_osst_int_mutex [2023-04-03 06:00:32,487 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2023-04-03 06:00:32,487 INFO L138 BoogieDeclarations]: Found implementation of procedure __blk_put_request [2023-04-03 06:00:32,487 INFO L138 BoogieDeclarations]: Found implementation of procedure __class_create [2023-04-03 06:00:32,487 INFO L138 BoogieDeclarations]: Found implementation of procedure __copy_from_user_overflow [2023-04-03 06:00:32,487 INFO L138 BoogieDeclarations]: Found implementation of procedure __copy_to_user_overflow [2023-04-03 06:00:32,487 INFO L138 BoogieDeclarations]: Found implementation of procedure __free_pages [2023-04-03 06:00:32,487 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_waitqueue_head [2023-04-03 06:00:32,487 INFO L138 BoogieDeclarations]: Found implementation of procedure __might_fault [2023-04-03 06:00:32,487 INFO L138 BoogieDeclarations]: Found implementation of procedure __msecs_to_jiffies [2023-04-03 06:00:32,487 INFO L138 BoogieDeclarations]: Found implementation of procedure __mutex_init [2023-04-03 06:00:32,487 INFO L138 BoogieDeclarations]: Found implementation of procedure __register_chrdev [2023-04-03 06:00:32,487 INFO L138 BoogieDeclarations]: Found implementation of procedure __scsi_print_sense [2023-04-03 06:00:32,487 INFO L138 BoogieDeclarations]: Found implementation of procedure __unregister_chrdev [2023-04-03 06:00:32,487 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_from_user [2023-04-03 06:00:32,487 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_to_user [2023-04-03 06:00:32,487 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_write_lock [2023-04-03 06:00:32,488 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_write_unlock [2023-04-03 06:00:32,488 INFO L138 BoogieDeclarations]: Found implementation of procedure alloc_disk [2023-04-03 06:00:32,488 INFO L138 BoogieDeclarations]: Found implementation of procedure alloc_pages_current [2023-04-03 06:00:32,488 INFO L138 BoogieDeclarations]: Found implementation of procedure blk_execute_rq_nowait [2023-04-03 06:00:32,488 INFO L138 BoogieDeclarations]: Found implementation of procedure blk_get_request [2023-04-03 06:00:32,488 INFO L138 BoogieDeclarations]: Found implementation of procedure blk_put_request [2023-04-03 06:00:32,488 INFO L138 BoogieDeclarations]: Found implementation of procedure blk_rq_map_kern [2023-04-03 06:00:32,488 INFO L138 BoogieDeclarations]: Found implementation of procedure blk_rq_map_user [2023-04-03 06:00:32,488 INFO L138 BoogieDeclarations]: Found implementation of procedure blk_rq_set_block_pc [2023-04-03 06:00:32,488 INFO L138 BoogieDeclarations]: Found implementation of procedure blk_rq_unmap_user [2023-04-03 06:00:32,488 INFO L138 BoogieDeclarations]: Found implementation of procedure capable [2023-04-03 06:00:32,488 INFO L138 BoogieDeclarations]: Found implementation of procedure class_destroy [2023-04-03 06:00:32,489 INFO L138 BoogieDeclarations]: Found implementation of procedure complete [2023-04-03 06:00:32,492 INFO L138 BoogieDeclarations]: Found implementation of procedure device_create [2023-04-03 06:00:32,492 INFO L138 BoogieDeclarations]: Found implementation of procedure device_create_file [2023-04-03 06:00:32,493 INFO L138 BoogieDeclarations]: Found implementation of procedure device_destroy [2023-04-03 06:00:32,493 INFO L138 BoogieDeclarations]: Found implementation of procedure driver_create_file [2023-04-03 06:00:32,493 INFO L138 BoogieDeclarations]: Found implementation of procedure driver_remove_file [2023-04-03 06:00:32,493 INFO L138 BoogieDeclarations]: Found implementation of procedure driver_unregister [2023-04-03 06:00:32,493 INFO L138 BoogieDeclarations]: Found implementation of procedure jiffies_to_msecs [2023-04-03 06:00:32,494 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize [2023-04-03 06:00:32,494 INFO L138 BoogieDeclarations]: Found implementation of procedure msleep [2023-04-03 06:00:32,494 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock [2023-04-03 06:00:32,494 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_interruptible [2023-04-03 06:00:32,494 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_trylock [2023-04-03 06:00:32,494 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2023-04-03 06:00:32,494 INFO L138 BoogieDeclarations]: Found implementation of procedure noop_llseek [2023-04-03 06:00:32,494 INFO L138 BoogieDeclarations]: Found implementation of procedure panic [2023-04-03 06:00:32,494 INFO L138 BoogieDeclarations]: Found implementation of procedure printk [2023-04-03 06:00:32,494 INFO L138 BoogieDeclarations]: Found implementation of procedure put_disk [2023-04-03 06:00:32,494 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule_timeout_interruptible [2023-04-03 06:00:32,494 INFO L138 BoogieDeclarations]: Found implementation of procedure scsi_block_when_processing_errors [2023-04-03 06:00:32,494 INFO L138 BoogieDeclarations]: Found implementation of procedure scsi_device_get [2023-04-03 06:00:32,494 INFO L138 BoogieDeclarations]: Found implementation of procedure scsi_device_put [2023-04-03 06:00:32,494 INFO L138 BoogieDeclarations]: Found implementation of procedure scsi_get_sense_info_fld [2023-04-03 06:00:32,494 INFO L138 BoogieDeclarations]: Found implementation of procedure scsi_ioctl [2023-04-03 06:00:32,495 INFO L138 BoogieDeclarations]: Found implementation of procedure scsi_ioctl_block_when_processing_errors [2023-04-03 06:00:32,495 INFO L138 BoogieDeclarations]: Found implementation of procedure scsi_normalize_sense [2023-04-03 06:00:32,495 INFO L138 BoogieDeclarations]: Found implementation of procedure scsi_register_driver [2023-04-03 06:00:32,495 INFO L138 BoogieDeclarations]: Found implementation of procedure scsi_sense_desc_find [2023-04-03 06:00:32,495 INFO L138 BoogieDeclarations]: Found implementation of procedure scsi_set_medium_removal [2023-04-03 06:00:32,495 INFO L138 BoogieDeclarations]: Found implementation of procedure sdev_prefix_printk [2023-04-03 06:00:32,495 INFO L138 BoogieDeclarations]: Found implementation of procedure sg_next [2023-04-03 06:00:32,495 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcpy [2023-04-03 06:00:32,495 INFO L138 BoogieDeclarations]: Found implementation of procedure vfree [2023-04-03 06:00:32,495 INFO L138 BoogieDeclarations]: Found implementation of procedure vmalloc [2023-04-03 06:00:32,495 INFO L138 BoogieDeclarations]: Found implementation of procedure wait_for_completion [2023-04-03 06:00:32,495 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2023-04-03 06:00:32,495 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2023-04-03 06:00:32,495 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2023-04-03 06:00:32,495 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2023-04-03 06:00:32,495 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_strcpy [2023-04-03 06:00:32,496 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2023-04-03 06:00:32,496 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2023-04-03 06:00:32,496 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_perror_fail [2023-04-03 06:00:32,496 INFO L130 BoogieDeclarations]: Found specification of procedure __assert [2023-04-03 06:00:32,496 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2023-04-03 06:00:32,496 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-04-03 06:00:32,496 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2023-04-03 06:00:32,496 INFO L130 BoogieDeclarations]: Found specification of procedure variable_test_bit [2023-04-03 06:00:32,496 INFO L130 BoogieDeclarations]: Found specification of procedure fls64 [2023-04-03 06:00:32,496 INFO L130 BoogieDeclarations]: Found specification of procedure __arch_swab32 [2023-04-03 06:00:32,496 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab16 [2023-04-03 06:00:32,496 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab32 [2023-04-03 06:00:32,496 INFO L130 BoogieDeclarations]: Found specification of procedure printk [2023-04-03 06:00:32,496 INFO L130 BoogieDeclarations]: Found specification of procedure __might_fault [2023-04-03 06:00:32,496 INFO L130 BoogieDeclarations]: Found specification of procedure panic [2023-04-03 06:00:32,497 INFO L130 BoogieDeclarations]: Found specification of procedure sprintf [2023-04-03 06:00:32,497 INFO L130 BoogieDeclarations]: Found specification of procedure snprintf [2023-04-03 06:00:32,497 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2023-04-03 06:00:32,497 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_ptr_err [2023-04-03 06:00:32,497 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2023-04-03 06:00:32,497 INFO L130 BoogieDeclarations]: Found specification of procedure get_current [2023-04-03 06:00:32,497 INFO L130 BoogieDeclarations]: Found specification of procedure __get_order [2023-04-03 06:00:32,497 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy [2023-04-03 06:00:32,497 INFO L130 BoogieDeclarations]: Found specification of procedure memset [2023-04-03 06:00:32,497 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2023-04-03 06:00:32,497 INFO L130 BoogieDeclarations]: Found specification of procedure strlen [2023-04-03 06:00:32,497 INFO L130 BoogieDeclarations]: Found specification of procedure strcpy [2023-04-03 06:00:32,497 INFO L130 BoogieDeclarations]: Found specification of procedure strlcpy [2023-04-03 06:00:32,497 INFO L130 BoogieDeclarations]: Found specification of procedure strncmp [2023-04-03 06:00:32,497 INFO L130 BoogieDeclarations]: Found specification of procedure PTR_ERR [2023-04-03 06:00:32,497 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2023-04-03 06:00:32,498 INFO L130 BoogieDeclarations]: Found specification of procedure atomic64_read [2023-04-03 06:00:32,498 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-04-03 06:00:32,498 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_long_read [2023-04-03 06:00:32,498 INFO L130 BoogieDeclarations]: Found specification of procedure __mutex_init [2023-04-03 06:00:32,498 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_trylock [2023-04-03 06:00:32,498 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_trylock_10 [2023-04-03 06:00:32,498 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2023-04-03 06:00:32,498 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_6 [2023-04-03 06:00:32,498 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_7 [2023-04-03 06:00:32,498 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_11 [2023-04-03 06:00:32,498 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_13 [2023-04-03 06:00:32,498 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_15 [2023-04-03 06:00:32,498 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_17 [2023-04-03 06:00:32,498 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_20 [2023-04-03 06:00:32,498 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_21 [2023-04-03 06:00:32,498 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_22 [2023-04-03 06:00:32,498 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_23 [2023-04-03 06:00:32,499 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_24 [2023-04-03 06:00:32,499 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2023-04-03 06:00:32,499 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2023-04-03 06:00:32,499 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2023-04-03 06:00:32,499 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_ulong [2023-04-03 06:00:32,499 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-04-03 06:00:32,499 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2023-04-03 06:00:32,499 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-04-03 06:00:32,499 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2023-04-03 06:00:32,499 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2023-04-03 06:00:32,499 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_zalloc [2023-04-03 06:00:32,499 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_memset [2023-04-03 06:00:32,499 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2023-04-03 06:00:32,499 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2023-04-03 06:00:32,499 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_ulong [2023-04-03 06:00:32,499 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2023-04-03 06:00:32,499 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_interruptible [2023-04-03 06:00:32,499 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_interruptible_12 [2023-04-03 06:00:32,500 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_interruptible_14 [2023-04-03 06:00:32,500 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_interruptible_19 [2023-04-03 06:00:32,500 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock [2023-04-03 06:00:32,500 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_5 [2023-04-03 06:00:32,500 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_8 [2023-04-03 06:00:32,500 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_9 [2023-04-03 06:00:32,500 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_16 [2023-04-03 06:00:32,500 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_18 [2023-04-03 06:00:32,500 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_i_mutex_of_inode [2023-04-03 06:00:32,500 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_i_mutex_of_inode [2023-04-03 06:00:32,500 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_lock [2023-04-03 06:00:32,500 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_lock [2023-04-03 06:00:32,500 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_interruptible_lock_of_osst_tape [2023-04-03 06:00:32,500 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_lock_of_osst_tape [2023-04-03 06:00:32,500 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_mutex_of_device [2023-04-03 06:00:32,500 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_trylock_mutex_of_device [2023-04-03 06:00:32,501 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_mutex_of_device [2023-04-03 06:00:32,501 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_osst_int_mutex [2023-04-03 06:00:32,501 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_osst_int_mutex [2023-04-03 06:00:32,501 INFO L130 BoogieDeclarations]: Found specification of procedure test_ti_thread_flag [2023-04-03 06:00:32,501 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_write_lock [2023-04-03 06:00:32,501 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_write_unlock [2023-04-03 06:00:32,501 INFO L130 BoogieDeclarations]: Found specification of procedure __init_waitqueue_head [2023-04-03 06:00:32,501 INFO L130 BoogieDeclarations]: Found specification of procedure init_completion [2023-04-03 06:00:32,501 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-04-03 06:00:32,501 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-04-03 06:00:32,501 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-04-03 06:00:32,501 INFO L130 BoogieDeclarations]: Found specification of procedure wait_for_completion [2023-04-03 06:00:32,501 INFO L130 BoogieDeclarations]: Found specification of procedure complete [2023-04-03 06:00:32,501 INFO L130 BoogieDeclarations]: Found specification of procedure jiffies_to_msecs [2023-04-03 06:00:32,501 INFO L130 BoogieDeclarations]: Found specification of procedure __msecs_to_jiffies [2023-04-03 06:00:32,501 INFO L130 BoogieDeclarations]: Found specification of procedure msecs_to_jiffies [2023-04-03 06:00:32,501 INFO L130 BoogieDeclarations]: Found specification of procedure alloc_pages_current [2023-04-03 06:00:32,502 INFO L130 BoogieDeclarations]: Found specification of procedure alloc_pages [2023-04-03 06:00:32,502 INFO L130 BoogieDeclarations]: Found specification of procedure __free_pages [2023-04-03 06:00:32,502 INFO L130 BoogieDeclarations]: Found specification of procedure capable [2023-04-03 06:00:32,502 INFO L130 BoogieDeclarations]: Found specification of procedure schedule_timeout_interruptible [2023-04-03 06:00:32,502 INFO L130 BoogieDeclarations]: Found specification of procedure test_tsk_thread_flag [2023-04-03 06:00:32,502 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-04-03 06:00:32,502 INFO L130 BoogieDeclarations]: Found specification of procedure signal_pending [2023-04-03 06:00:32,502 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2023-04-03 06:00:32,502 INFO L130 BoogieDeclarations]: Found specification of procedure __kmalloc [2023-04-03 06:00:32,502 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2023-04-03 06:00:32,502 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2023-04-03 06:00:32,502 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize_scsi_driver_9 [2023-04-03 06:00:32,502 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_file_operations_8 [2023-04-03 06:00:32,502 INFO L130 BoogieDeclarations]: Found specification of procedure iminor [2023-04-03 06:00:32,502 INFO L130 BoogieDeclarations]: Found specification of procedure __register_chrdev [2023-04-03 06:00:32,502 INFO L130 BoogieDeclarations]: Found specification of procedure __unregister_chrdev [2023-04-03 06:00:32,503 INFO L130 BoogieDeclarations]: Found specification of procedure register_chrdev [2023-04-03 06:00:32,503 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_register_chrdev_25 [2023-04-03 06:00:32,503 INFO L130 BoogieDeclarations]: Found specification of procedure unregister_chrdev [2023-04-03 06:00:32,503 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_unregister_chrdev_26 [2023-04-03 06:00:32,503 INFO L130 BoogieDeclarations]: Found specification of procedure noop_llseek [2023-04-03 06:00:32,503 INFO L130 BoogieDeclarations]: Found specification of procedure lowmem_page_address [2023-04-03 06:00:32,503 INFO L130 BoogieDeclarations]: Found specification of procedure vmalloc [2023-04-03 06:00:32,503 INFO L130 BoogieDeclarations]: Found specification of procedure vfree [2023-04-03 06:00:32,503 INFO L130 BoogieDeclarations]: Found specification of procedure driver_unregister [2023-04-03 06:00:32,503 INFO L130 BoogieDeclarations]: Found specification of procedure driver_create_file [2023-04-03 06:00:32,503 INFO L130 BoogieDeclarations]: Found specification of procedure driver_remove_file [2023-04-03 06:00:32,503 INFO L130 BoogieDeclarations]: Found specification of procedure __class_create [2023-04-03 06:00:32,503 INFO L130 BoogieDeclarations]: Found specification of procedure class_destroy [2023-04-03 06:00:32,503 INFO L130 BoogieDeclarations]: Found specification of procedure device_create_file [2023-04-03 06:00:32,503 INFO L130 BoogieDeclarations]: Found specification of procedure dev_get_drvdata [2023-04-03 06:00:32,503 INFO L130 BoogieDeclarations]: Found specification of procedure device_create [2023-04-03 06:00:32,504 INFO L130 BoogieDeclarations]: Found specification of procedure device_destroy [2023-04-03 06:00:32,504 INFO L130 BoogieDeclarations]: Found specification of procedure alloc_disk [2023-04-03 06:00:32,504 INFO L130 BoogieDeclarations]: Found specification of procedure put_disk [2023-04-03 06:00:32,504 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_from_user [2023-04-03 06:00:32,504 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_to_user [2023-04-03 06:00:32,504 INFO L130 BoogieDeclarations]: Found specification of procedure __copy_from_user_overflow [2023-04-03 06:00:32,504 INFO L130 BoogieDeclarations]: Found specification of procedure __copy_to_user_overflow [2023-04-03 06:00:32,504 INFO L130 BoogieDeclarations]: Found specification of procedure copy_from_user [2023-04-03 06:00:32,504 INFO L130 BoogieDeclarations]: Found specification of procedure copy_to_user [2023-04-03 06:00:32,504 INFO L130 BoogieDeclarations]: Found specification of procedure sg_assign_page [2023-04-03 06:00:32,504 INFO L130 BoogieDeclarations]: Found specification of procedure sg_set_page [2023-04-03 06:00:32,504 INFO L130 BoogieDeclarations]: Found specification of procedure sg_page [2023-04-03 06:00:32,504 INFO L130 BoogieDeclarations]: Found specification of procedure sg_next [2023-04-03 06:00:32,504 INFO L130 BoogieDeclarations]: Found specification of procedure blk_put_request [2023-04-03 06:00:32,504 INFO L130 BoogieDeclarations]: Found specification of procedure __blk_put_request [2023-04-03 06:00:32,504 INFO L130 BoogieDeclarations]: Found specification of procedure blk_get_request [2023-04-03 06:00:32,505 INFO L130 BoogieDeclarations]: Found specification of procedure blk_rq_set_block_pc [2023-04-03 06:00:32,505 INFO L130 BoogieDeclarations]: Found specification of procedure blk_rq_map_user [2023-04-03 06:00:32,505 INFO L130 BoogieDeclarations]: Found specification of procedure blk_rq_unmap_user [2023-04-03 06:00:32,505 INFO L130 BoogieDeclarations]: Found specification of procedure blk_rq_map_kern [2023-04-03 06:00:32,505 INFO L130 BoogieDeclarations]: Found specification of procedure blk_execute_rq_nowait [2023-04-03 06:00:32,505 INFO L130 BoogieDeclarations]: Found specification of procedure msleep [2023-04-03 06:00:32,505 INFO L130 BoogieDeclarations]: Found specification of procedure scsi_normalize_sense [2023-04-03 06:00:32,505 INFO L130 BoogieDeclarations]: Found specification of procedure __scsi_print_sense [2023-04-03 06:00:32,505 INFO L130 BoogieDeclarations]: Found specification of procedure sdev_prefix_printk [2023-04-03 06:00:32,505 INFO L130 BoogieDeclarations]: Found specification of procedure scsi_device_get [2023-04-03 06:00:32,505 INFO L130 BoogieDeclarations]: Found specification of procedure scsi_device_put [2023-04-03 06:00:32,505 INFO L130 BoogieDeclarations]: Found specification of procedure scsi_set_medium_removal [2023-04-03 06:00:32,505 INFO L130 BoogieDeclarations]: Found specification of procedure scsi_register_driver [2023-04-03 06:00:32,505 INFO L130 BoogieDeclarations]: Found specification of procedure scsi_block_when_processing_errors [2023-04-03 06:00:32,505 INFO L130 BoogieDeclarations]: Found specification of procedure scsi_sense_desc_find [2023-04-03 06:00:32,505 INFO L130 BoogieDeclarations]: Found specification of procedure scsi_get_sense_info_fld [2023-04-03 06:00:32,506 INFO L130 BoogieDeclarations]: Found specification of procedure scsi_ioctl_block_when_processing_errors [2023-04-03 06:00:32,506 INFO L130 BoogieDeclarations]: Found specification of procedure scsi_ioctl [2023-04-03 06:00:32,506 INFO L130 BoogieDeclarations]: Found specification of procedure new_tape_buffer [2023-04-03 06:00:32,506 INFO L130 BoogieDeclarations]: Found specification of procedure enlarge_buffer [2023-04-03 06:00:32,506 INFO L130 BoogieDeclarations]: Found specification of procedure normalize_buffer [2023-04-03 06:00:32,506 INFO L130 BoogieDeclarations]: Found specification of procedure append_to_buffer [2023-04-03 06:00:32,506 INFO L130 BoogieDeclarations]: Found specification of procedure from_buffer [2023-04-03 06:00:32,506 INFO L130 BoogieDeclarations]: Found specification of procedure osst_zero_buffer_tail [2023-04-03 06:00:32,506 INFO L130 BoogieDeclarations]: Found specification of procedure osst_copy_to_buffer [2023-04-03 06:00:32,506 INFO L130 BoogieDeclarations]: Found specification of procedure osst_copy_from_buffer [2023-04-03 06:00:32,506 INFO L130 BoogieDeclarations]: Found specification of procedure osst_probe [2023-04-03 06:00:32,506 INFO L130 BoogieDeclarations]: Found specification of procedure osst_remove [2023-04-03 06:00:32,506 INFO L130 BoogieDeclarations]: Found specification of procedure osst_int_ioctl [2023-04-03 06:00:32,506 INFO L130 BoogieDeclarations]: Found specification of procedure osst_set_frame_position [2023-04-03 06:00:32,506 INFO L130 BoogieDeclarations]: Found specification of procedure osst_get_frame_position [2023-04-03 06:00:32,506 INFO L130 BoogieDeclarations]: Found specification of procedure osst_flush_write_buffer [2023-04-03 06:00:32,506 INFO L130 BoogieDeclarations]: Found specification of procedure osst_write_error_recovery [2023-04-03 06:00:32,507 INFO L130 BoogieDeclarations]: Found specification of procedure tape_name [2023-04-03 06:00:32,507 INFO L130 BoogieDeclarations]: Found specification of procedure osst_analyze_sense [2023-04-03 06:00:32,507 INFO L130 BoogieDeclarations]: Found specification of procedure osst_chk_result [2023-04-03 06:00:32,507 INFO L130 BoogieDeclarations]: Found specification of procedure osst_end_async [2023-04-03 06:00:32,507 INFO L130 BoogieDeclarations]: Found specification of procedure osst_allocate_request [2023-04-03 06:00:32,507 INFO L130 BoogieDeclarations]: Found specification of procedure osst_release_request [2023-04-03 06:00:32,507 INFO L130 BoogieDeclarations]: Found specification of procedure osst_execute [2023-04-03 06:00:32,507 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2023-04-03 06:00:32,507 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-04-03 06:00:32,507 INFO L130 BoogieDeclarations]: Found specification of procedure osst_do_scsi [2023-04-03 06:00:32,507 INFO L130 BoogieDeclarations]: Found specification of procedure osst_write_behind_check [2023-04-03 06:00:32,507 INFO L130 BoogieDeclarations]: Found specification of procedure osst_init_aux [2023-04-03 06:00:32,507 INFO L130 BoogieDeclarations]: Found specification of procedure osst_verify_frame [2023-04-03 06:00:32,507 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_strcpy [2023-04-03 06:00:32,507 INFO L130 BoogieDeclarations]: Found specification of procedure osst_wait_ready [2023-04-03 06:00:32,508 INFO L130 BoogieDeclarations]: Found specification of procedure osst_wait_for_medium [2023-04-03 06:00:32,508 INFO L130 BoogieDeclarations]: Found specification of procedure osst_position_tape_and_confirm [2023-04-03 06:00:32,508 INFO L130 BoogieDeclarations]: Found specification of procedure osst_flush_drive_buffer [2023-04-03 06:00:32,508 INFO L130 BoogieDeclarations]: Found specification of procedure osst_wait_frame [2023-04-03 06:00:32,508 INFO L130 BoogieDeclarations]: Found specification of procedure osst_recover_wait_frame [2023-04-03 06:00:32,508 INFO L130 BoogieDeclarations]: Found specification of procedure osst_read_frame [2023-04-03 06:00:32,508 INFO L130 BoogieDeclarations]: Found specification of procedure osst_initiate_read [2023-04-03 06:00:32,508 INFO L130 BoogieDeclarations]: Found specification of procedure osst_get_logical_frame [2023-04-03 06:00:32,508 INFO L130 BoogieDeclarations]: Found specification of procedure osst_seek_logical_blk [2023-04-03 06:00:32,508 INFO L130 BoogieDeclarations]: Found specification of procedure osst_get_sector [2023-04-03 06:00:32,508 INFO L130 BoogieDeclarations]: Found specification of procedure osst_seek_sector [2023-04-03 06:00:32,508 INFO L130 BoogieDeclarations]: Found specification of procedure osst_read_back_buffer_and_rewrite [2023-04-03 06:00:32,508 INFO L130 BoogieDeclarations]: Found specification of procedure osst_reposition_and_retry [2023-04-03 06:00:32,508 INFO L130 BoogieDeclarations]: Found specification of procedure osst_space_over_filemarks_backward [2023-04-03 06:00:32,508 INFO L130 BoogieDeclarations]: Found specification of procedure osst_space_over_filemarks_forward_slow [2023-04-03 06:00:32,508 INFO L130 BoogieDeclarations]: Found specification of procedure osst_space_over_filemarks_forward_fast [2023-04-03 06:00:32,509 INFO L130 BoogieDeclarations]: Found specification of procedure osst_write_filemark [2023-04-03 06:00:32,509 INFO L130 BoogieDeclarations]: Found specification of procedure osst_write_eod [2023-04-03 06:00:32,509 INFO L130 BoogieDeclarations]: Found specification of procedure osst_write_filler [2023-04-03 06:00:32,509 INFO L130 BoogieDeclarations]: Found specification of procedure __osst_write_header [2023-04-03 06:00:32,509 INFO L130 BoogieDeclarations]: Found specification of procedure osst_write_header [2023-04-03 06:00:32,509 INFO L130 BoogieDeclarations]: Found specification of procedure osst_reset_header [2023-04-03 06:00:32,509 INFO L130 BoogieDeclarations]: Found specification of procedure __osst_analyze_headers [2023-04-03 06:00:32,509 INFO L130 BoogieDeclarations]: Found specification of procedure osst_analyze_headers [2023-04-03 06:00:32,509 INFO L130 BoogieDeclarations]: Found specification of procedure osst_verify_position [2023-04-03 06:00:32,509 INFO L130 BoogieDeclarations]: Found specification of procedure osst_parse_firmware_rev [2023-04-03 06:00:32,509 INFO L130 BoogieDeclarations]: Found specification of procedure osst_configure_onstream [2023-04-03 06:00:32,512 INFO L130 BoogieDeclarations]: Found specification of procedure cross_eof [2023-04-03 06:00:32,512 INFO L130 BoogieDeclarations]: Found specification of procedure osst_write_trailer [2023-04-03 06:00:32,512 INFO L130 BoogieDeclarations]: Found specification of procedure osst_flush_buffer [2023-04-03 06:00:32,513 INFO L130 BoogieDeclarations]: Found specification of procedure osst_write_frame [2023-04-03 06:00:32,513 INFO L130 BoogieDeclarations]: Found specification of procedure do_door_lock [2023-04-03 06:00:32,513 INFO L130 BoogieDeclarations]: Found specification of procedure reset_state [2023-04-03 06:00:32,513 INFO L130 BoogieDeclarations]: Found specification of procedure osst_write [2023-04-03 06:00:32,513 INFO L130 BoogieDeclarations]: Found specification of procedure osst_read [2023-04-03 06:00:32,513 INFO L130 BoogieDeclarations]: Found specification of procedure osst_log_options [2023-04-03 06:00:32,513 INFO L130 BoogieDeclarations]: Found specification of procedure osst_set_options [2023-04-03 06:00:32,513 INFO L130 BoogieDeclarations]: Found specification of procedure __os_scsi_tape_open [2023-04-03 06:00:32,513 INFO L130 BoogieDeclarations]: Found specification of procedure os_scsi_tape_open [2023-04-03 06:00:32,513 INFO L130 BoogieDeclarations]: Found specification of procedure os_scsi_tape_flush [2023-04-03 06:00:32,513 INFO L130 BoogieDeclarations]: Found specification of procedure os_scsi_tape_close [2023-04-03 06:00:32,513 INFO L130 BoogieDeclarations]: Found specification of procedure osst_ioctl [2023-04-03 06:00:32,513 INFO L130 BoogieDeclarations]: Found specification of procedure osst_compat_ioctl [2023-04-03 06:00:32,513 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~int~X~$Pointer$~TO~int [2023-04-03 06:00:32,513 INFO L130 BoogieDeclarations]: Found specification of procedure validate_options [2023-04-03 06:00:32,513 INFO L130 BoogieDeclarations]: Found specification of procedure osst_supports [2023-04-03 06:00:32,513 INFO L130 BoogieDeclarations]: Found specification of procedure osst_version_show [2023-04-03 06:00:32,514 INFO L130 BoogieDeclarations]: Found specification of procedure osst_create_sysfs_files [2023-04-03 06:00:32,514 INFO L130 BoogieDeclarations]: Found specification of procedure osst_remove_sysfs_files [2023-04-03 06:00:32,514 INFO L130 BoogieDeclarations]: Found specification of procedure osst_adr_rev_show [2023-04-03 06:00:32,514 INFO L130 BoogieDeclarations]: Found specification of procedure osst_linux_media_version_show [2023-04-03 06:00:32,514 INFO L130 BoogieDeclarations]: Found specification of procedure osst_capacity_show [2023-04-03 06:00:32,514 INFO L130 BoogieDeclarations]: Found specification of procedure osst_first_data_ppos_show [2023-04-03 06:00:32,514 INFO L130 BoogieDeclarations]: Found specification of procedure osst_eod_frame_ppos_show [2023-04-03 06:00:32,514 INFO L130 BoogieDeclarations]: Found specification of procedure osst_filemark_cnt_show [2023-04-03 06:00:32,514 INFO L130 BoogieDeclarations]: Found specification of procedure osst_sysfs_init [2023-04-03 06:00:32,514 INFO L130 BoogieDeclarations]: Found specification of procedure osst_sysfs_destroy [2023-04-03 06:00:32,514 INFO L130 BoogieDeclarations]: Found specification of procedure osst_sysfs_add [2023-04-03 06:00:32,514 INFO L130 BoogieDeclarations]: Found specification of procedure osst_sysfs_cleanup [2023-04-03 06:00:32,514 INFO L130 BoogieDeclarations]: Found specification of procedure init_osst [2023-04-03 06:00:32,514 INFO L130 BoogieDeclarations]: Found specification of procedure exit_osst [2023-04-03 06:00:32,514 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize [2023-04-03 06:00:32,514 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2023-04-03 06:00:32,514 INFO L130 BoogieDeclarations]: Found specification of procedure main [2023-04-03 06:00:32,515 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2023-04-03 06:00:32,515 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int_negative [2023-04-03 06:00:32,515 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_err_ptr [2023-04-03 06:00:32,515 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err_or_null [2023-04-03 06:00:32,515 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_interruptible_i_mutex_of_inode [2023-04-03 06:00:32,515 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_killable_i_mutex_of_inode [2023-04-03 06:00:32,515 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_trylock_i_mutex_of_inode [2023-04-03 06:00:32,515 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_dec_and_mutex_lock_i_mutex_of_inode [2023-04-03 06:00:32,515 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_is_locked_i_mutex_of_inode [2023-04-03 06:00:32,515 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_lock_device_i_mutex_of_inode [2023-04-03 06:00:32,515 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_trylock_device_i_mutex_of_inode [2023-04-03 06:00:32,515 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_lock_device_for_reset_i_mutex_of_inode [2023-04-03 06:00:32,515 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_unlock_device_i_mutex_of_inode [2023-04-03 06:00:32,515 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_interruptible_lock [2023-04-03 06:00:32,515 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_killable_lock [2023-04-03 06:00:32,515 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_trylock_lock [2023-04-03 06:00:32,516 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_dec_and_mutex_lock_lock [2023-04-03 06:00:32,516 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_is_locked_lock [2023-04-03 06:00:32,516 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_lock_device_lock [2023-04-03 06:00:32,516 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_trylock_device_lock [2023-04-03 06:00:32,516 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_lock_device_for_reset_lock [2023-04-03 06:00:32,516 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_unlock_device_lock [2023-04-03 06:00:32,516 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_killable_lock_of_osst_tape [2023-04-03 06:00:32,516 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_lock_of_osst_tape [2023-04-03 06:00:32,516 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_trylock_lock_of_osst_tape [2023-04-03 06:00:32,516 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_dec_and_mutex_lock_lock_of_osst_tape [2023-04-03 06:00:32,516 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_is_locked_lock_of_osst_tape [2023-04-03 06:00:32,516 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_lock_device_lock_of_osst_tape [2023-04-03 06:00:32,516 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_trylock_device_lock_of_osst_tape [2023-04-03 06:00:32,516 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_lock_device_for_reset_lock_of_osst_tape [2023-04-03 06:00:32,516 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_unlock_device_lock_of_osst_tape [2023-04-03 06:00:32,517 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_interruptible_mutex_of_device [2023-04-03 06:00:32,517 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_killable_mutex_of_device [2023-04-03 06:00:32,517 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_dec_and_mutex_lock_mutex_of_device [2023-04-03 06:00:32,517 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_is_locked_mutex_of_device [2023-04-03 06:00:32,517 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_lock_device_mutex_of_device [2023-04-03 06:00:32,517 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_trylock_device_mutex_of_device [2023-04-03 06:00:32,517 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_lock_device_for_reset_mutex_of_device [2023-04-03 06:00:32,517 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_unlock_device_mutex_of_device [2023-04-03 06:00:32,517 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_interruptible_osst_int_mutex [2023-04-03 06:00:32,517 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_killable_osst_int_mutex [2023-04-03 06:00:32,517 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_trylock_osst_int_mutex [2023-04-03 06:00:32,517 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_dec_and_mutex_lock_osst_int_mutex [2023-04-03 06:00:32,517 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_is_locked_osst_int_mutex [2023-04-03 06:00:32,517 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_lock_device_osst_int_mutex [2023-04-03 06:00:32,517 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_trylock_device_osst_int_mutex [2023-04-03 06:00:32,517 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_lock_device_for_reset_osst_int_mutex [2023-04-03 06:00:32,518 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_unlock_device_osst_int_mutex [2023-04-03 06:00:32,518 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_bool [2023-04-03 06:00:32,518 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uint [2023-04-03 06:00:32,518 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_long [2023-04-03 06:00:32,518 INFO L130 BoogieDeclarations]: Found specification of procedure free [2023-04-03 06:00:32,518 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2023-04-03 06:00:32,518 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-04-03 06:00:32,518 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2023-04-03 06:00:32,518 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-04-03 06:00:32,518 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2023-04-03 06:00:32,518 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2023-04-03 06:00:32,518 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2023-04-03 06:00:32,518 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2023-04-03 06:00:33,734 INFO L236 CfgBuilder]: Building ICFG [2023-04-03 06:00:33,744 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-04-03 06:00:34,062 INFO L771 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2023-04-03 06:00:47,641 INFO L277 CfgBuilder]: Performing block encoding [2023-04-03 06:00:53,639 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-04-03 06:00:53,639 INFO L302 CfgBuilder]: Removed 2 assume(true) statements. [2023-04-03 06:00:53,646 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.04 06:00:53 BoogieIcfgContainer [2023-04-03 06:00:53,647 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-04-03 06:00:53,649 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-04-03 06:00:53,649 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-04-03 06:00:53,653 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-04-03 06:00:53,653 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.04 06:00:27" (1/3) ... [2023-04-03 06:00:53,654 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6b0c59a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.04 06:00:53, skipping insertion in model container [2023-04-03 06:00:53,654 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.04 06:00:31" (2/3) ... [2023-04-03 06:00:53,654 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6b0c59a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.04 06:00:53, skipping insertion in model container [2023-04-03 06:00:53,654 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.04 06:00:53" (3/3) ... [2023-04-03 06:00:53,655 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-4.2-rc1.tar.xz-32_7a-drivers--scsi--osst.ko-entry_point.cil.out.i [2023-04-03 06:00:53,673 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-04-03 06:00:53,674 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-04-03 06:00:53,794 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-04-03 06:00:53,803 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;@3e659494, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-04-03 06:00:53,803 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-04-03 06:00:53,821 INFO L276 IsEmpty]: Start isEmpty. Operand has 3275 states, 2063 states have (on average 1.3383422200678623) internal successors, (2761), 2108 states have internal predecessors, (2761), 933 states have call successors, (933), 221 states have call predecessors, (933), 220 states have return successors, (921), 918 states have call predecessors, (921), 921 states have call successors, (921) [2023-04-03 06:00:53,852 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 404 [2023-04-03 06:00:53,852 INFO L187 NwaCegarLoop]: Found error trace [2023-04-03 06:00:53,853 INFO L195 NwaCegarLoop]: trace histogram [25, 25, 25, 25, 25, 25, 25, 25, 25, 8, 8, 8, 8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-03 06:00:53,854 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-03 06:00:53,858 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-03 06:00:53,859 INFO L85 PathProgramCache]: Analyzing trace with hash -1872214715, now seen corresponding path program 1 times [2023-04-03 06:00:53,867 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-03 06:00:53,872 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1405146250] [2023-04-03 06:00:53,872 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-03 06:00:53,873 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-03 06:00:54,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-03 06:00:55,073 INFO L134 CoverageAnalysis]: Checked inductivity of 3196 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3196 trivial. 0 not checked. [2023-04-03 06:00:55,074 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-03 06:00:55,074 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1405146250] [2023-04-03 06:00:55,075 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1405146250] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-03 06:00:55,075 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-03 06:00:55,075 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-04-03 06:00:55,077 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [861922887] [2023-04-03 06:00:55,077 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-03 06:00:55,084 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-04-03 06:00:55,085 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-03 06:00:55,119 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-04-03 06:00:55,119 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-04-03 06:00:55,129 INFO L87 Difference]: Start difference. First operand has 3275 states, 2063 states have (on average 1.3383422200678623) internal successors, (2761), 2108 states have internal predecessors, (2761), 933 states have call successors, (933), 221 states have call predecessors, (933), 220 states have return successors, (921), 918 states have call predecessors, (921), 921 states have call successors, (921) Second operand has 3 states, 3 states have (on average 21.333333333333332) internal successors, (64), 3 states have internal predecessors, (64), 2 states have call successors, (43), 2 states have call predecessors, (43), 1 states have return successors, (38), 1 states have call predecessors, (38), 1 states have call successors, (38) [2023-04-03 06:00:59,043 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2023-04-03 06:01:01,055 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2023-04-03 06:01:04,132 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-04-03 06:01:05,824 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.69s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-04-03 06:01:06,990 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-03 06:01:06,991 INFO L93 Difference]: Finished difference Result 6526 states and 9443 transitions. [2023-04-03 06:01:06,992 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-04-03 06:01:06,993 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 21.333333333333332) internal successors, (64), 3 states have internal predecessors, (64), 2 states have call successors, (43), 2 states have call predecessors, (43), 1 states have return successors, (38), 1 states have call predecessors, (38), 1 states have call successors, (38) Word has length 403 [2023-04-03 06:01:06,995 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-03 06:01:07,037 INFO L225 Difference]: With dead ends: 6526 [2023-04-03 06:01:07,037 INFO L226 Difference]: Without dead ends: 3503 [2023-04-03 06:01:07,064 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-04-03 06:01:07,068 INFO L413 NwaCegarLoop]: 4001 mSDtfsCounter, 778 mSDsluCounter, 3826 mSDsCounter, 0 mSdLazyCounter, 820 mSolverCounterSat, 4 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 778 SdHoareTripleChecker+Valid, 7827 SdHoareTripleChecker+Invalid, 827 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 820 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.4s IncrementalHoareTripleChecker+Time [2023-04-03 06:01:07,073 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [778 Valid, 7827 Invalid, 827 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [4 Valid, 820 Invalid, 3 Unknown, 0 Unchecked, 11.4s Time] [2023-04-03 06:01:07,097 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3503 states. [2023-04-03 06:01:07,340 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3503 to 3470. [2023-04-03 06:01:07,349 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3470 states, 2227 states have (on average 1.3426133812303547) internal successors, (2990), 2257 states have internal predecessors, (2990), 977 states have call successors, (977), 269 states have call predecessors, (977), 265 states have return successors, (968), 960 states have call predecessors, (968), 966 states have call successors, (968) [2023-04-03 06:01:07,376 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3470 states to 3470 states and 4935 transitions. [2023-04-03 06:01:07,380 INFO L78 Accepts]: Start accepts. Automaton has 3470 states and 4935 transitions. Word has length 403 [2023-04-03 06:01:07,385 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-03 06:01:07,385 INFO L495 AbstractCegarLoop]: Abstraction has 3470 states and 4935 transitions. [2023-04-03 06:01:07,385 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 21.333333333333332) internal successors, (64), 3 states have internal predecessors, (64), 2 states have call successors, (43), 2 states have call predecessors, (43), 1 states have return successors, (38), 1 states have call predecessors, (38), 1 states have call successors, (38) [2023-04-03 06:01:07,385 INFO L276 IsEmpty]: Start isEmpty. Operand 3470 states and 4935 transitions. [2023-04-03 06:01:07,398 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 434 [2023-04-03 06:01:07,398 INFO L187 NwaCegarLoop]: Found error trace [2023-04-03 06:01:07,399 INFO L195 NwaCegarLoop]: trace histogram [25, 25, 25, 25, 25, 25, 25, 25, 25, 8, 8, 8, 8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-03 06:01:07,399 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-04-03 06:01:07,399 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-03 06:01:07,401 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-03 06:01:07,401 INFO L85 PathProgramCache]: Analyzing trace with hash 707513539, now seen corresponding path program 1 times [2023-04-03 06:01:07,401 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-03 06:01:07,401 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [857986565] [2023-04-03 06:01:07,401 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-03 06:01:07,401 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-03 06:01:07,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-03 06:01:08,286 INFO L134 CoverageAnalysis]: Checked inductivity of 3196 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3196 trivial. 0 not checked. [2023-04-03 06:01:08,287 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-03 06:01:08,287 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [857986565] [2023-04-03 06:01:08,287 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [857986565] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-03 06:01:08,287 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-03 06:01:08,287 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-04-03 06:01:08,287 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [416677718] [2023-04-03 06:01:08,288 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-03 06:01:08,289 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-04-03 06:01:08,289 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-03 06:01:08,290 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-04-03 06:01:08,290 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-04-03 06:01:08,290 INFO L87 Difference]: Start difference. First operand 3470 states and 4935 transitions. Second operand has 3 states, 3 states have (on average 25.333333333333332) internal successors, (76), 3 states have internal predecessors, (76), 2 states have call successors, (51), 2 states have call predecessors, (51), 1 states have return successors, (48), 2 states have call predecessors, (48), 2 states have call successors, (48) [2023-04-03 06:01:12,297 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2023-04-03 06:01:14,350 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2023-04-03 06:01:16,240 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.89s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2023-04-03 06:01:18,360 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.35s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-04-03 06:01:21,066 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-04-03 06:01:22,755 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-03 06:01:22,755 INFO L93 Difference]: Finished difference Result 10063 states and 14342 transitions. [2023-04-03 06:01:22,756 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-04-03 06:01:22,756 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 25.333333333333332) internal successors, (76), 3 states have internal predecessors, (76), 2 states have call successors, (51), 2 states have call predecessors, (51), 1 states have return successors, (48), 2 states have call predecessors, (48), 2 states have call successors, (48) Word has length 433 [2023-04-03 06:01:22,757 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-03 06:01:22,820 INFO L225 Difference]: With dead ends: 10063 [2023-04-03 06:01:22,820 INFO L226 Difference]: Without dead ends: 6674 [2023-04-03 06:01:22,844 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-04-03 06:01:22,845 INFO L413 NwaCegarLoop]: 4230 mSDtfsCounter, 4162 mSDsluCounter, 3872 mSDsCounter, 0 mSdLazyCounter, 820 mSolverCounterSat, 3 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 13.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4162 SdHoareTripleChecker+Valid, 8102 SdHoareTripleChecker+Invalid, 826 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 820 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 14.0s IncrementalHoareTripleChecker+Time [2023-04-03 06:01:22,846 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4162 Valid, 8102 Invalid, 826 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 820 Invalid, 3 Unknown, 0 Unchecked, 14.0s Time] [2023-04-03 06:01:22,858 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6674 states. [2023-04-03 06:01:23,180 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6674 to 6656. [2023-04-03 06:01:23,194 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6656 states, 4312 states have (on average 1.3478664192949907) internal successors, (5812), 4359 states have internal predecessors, (5812), 1847 states have call successors, (1847), 499 states have call predecessors, (1847), 496 states have return successors, (1838), 1828 states have call predecessors, (1838), 1836 states have call successors, (1838) [2023-04-03 06:01:23,232 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6656 states to 6656 states and 9497 transitions. [2023-04-03 06:01:23,234 INFO L78 Accepts]: Start accepts. Automaton has 6656 states and 9497 transitions. Word has length 433 [2023-04-03 06:01:23,237 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-03 06:01:23,238 INFO L495 AbstractCegarLoop]: Abstraction has 6656 states and 9497 transitions. [2023-04-03 06:01:23,251 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 25.333333333333332) internal successors, (76), 3 states have internal predecessors, (76), 2 states have call successors, (51), 2 states have call predecessors, (51), 1 states have return successors, (48), 2 states have call predecessors, (48), 2 states have call successors, (48) [2023-04-03 06:01:23,251 INFO L276 IsEmpty]: Start isEmpty. Operand 6656 states and 9497 transitions. [2023-04-03 06:01:23,259 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 437 [2023-04-03 06:01:23,259 INFO L187 NwaCegarLoop]: Found error trace [2023-04-03 06:01:23,259 INFO L195 NwaCegarLoop]: trace histogram [25, 25, 25, 25, 25, 25, 25, 25, 25, 8, 8, 8, 8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-03 06:01:23,260 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-04-03 06:01:23,260 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-03 06:01:23,260 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-03 06:01:23,260 INFO L85 PathProgramCache]: Analyzing trace with hash 1193338457, now seen corresponding path program 1 times [2023-04-03 06:01:23,261 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-03 06:01:23,261 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1494254464] [2023-04-03 06:01:23,261 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-03 06:01:23,261 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-03 06:01:23,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-03 06:01:24,182 INFO L134 CoverageAnalysis]: Checked inductivity of 3196 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3196 trivial. 0 not checked. [2023-04-03 06:01:24,183 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-03 06:01:24,183 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1494254464] [2023-04-03 06:01:24,183 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1494254464] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-03 06:01:24,183 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-03 06:01:24,183 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-04-03 06:01:24,183 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1697547350] [2023-04-03 06:01:24,183 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-03 06:01:24,184 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-04-03 06:01:24,184 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-03 06:01:24,185 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-04-03 06:01:24,185 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-04-03 06:01:24,186 INFO L87 Difference]: Start difference. First operand 6656 states and 9497 transitions. Second operand has 5 states, 5 states have (on average 16.6) internal successors, (83), 4 states have internal predecessors, (83), 2 states have call successors, (49), 2 states have call predecessors, (49), 3 states have return successors, (46), 3 states have call predecessors, (46), 1 states have call successors, (46) [2023-04-03 06:01:29,138 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2023-04-03 06:01:31,151 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2023-04-03 06:01:33,157 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2023-04-03 06:01:35,163 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2023-04-03 06:01:39,814 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-04-03 06:01:41,104 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.29s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-04-03 06:01:43,382 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-03 06:01:43,382 INFO L93 Difference]: Finished difference Result 13241 states and 18895 transitions. [2023-04-03 06:01:43,382 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-04-03 06:01:43,383 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.6) internal successors, (83), 4 states have internal predecessors, (83), 2 states have call successors, (49), 2 states have call predecessors, (49), 3 states have return successors, (46), 3 states have call predecessors, (46), 1 states have call successors, (46) Word has length 436 [2023-04-03 06:01:43,384 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-03 06:01:43,434 INFO L225 Difference]: With dead ends: 13241 [2023-04-03 06:01:43,434 INFO L226 Difference]: Without dead ends: 6666 [2023-04-03 06:01:43,469 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 06:01:43,470 INFO L413 NwaCegarLoop]: 3961 mSDtfsCounter, 2 mSDsluCounter, 11865 mSDsCounter, 0 mSdLazyCounter, 1602 mSolverCounterSat, 3 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 18.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 15826 SdHoareTripleChecker+Invalid, 1610 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1602 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 18.9s IncrementalHoareTripleChecker+Time [2023-04-03 06:01:43,470 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 15826 Invalid, 1610 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 1602 Invalid, 5 Unknown, 0 Unchecked, 18.9s Time] [2023-04-03 06:01:43,480 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6666 states. [2023-04-03 06:01:43,742 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6666 to 6662. [2023-04-03 06:01:43,753 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6662 states, 4316 states have (on average 1.3475440222428174) internal successors, (5816), 4364 states have internal predecessors, (5816), 1847 states have call successors, (1847), 499 states have call predecessors, (1847), 498 states have return successors, (1840), 1829 states have call predecessors, (1840), 1836 states have call successors, (1840) [2023-04-03 06:01:43,786 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6662 states to 6662 states and 9503 transitions. [2023-04-03 06:01:43,789 INFO L78 Accepts]: Start accepts. Automaton has 6662 states and 9503 transitions. Word has length 436 [2023-04-03 06:01:43,791 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-03 06:01:43,791 INFO L495 AbstractCegarLoop]: Abstraction has 6662 states and 9503 transitions. [2023-04-03 06:01:43,791 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.6) internal successors, (83), 4 states have internal predecessors, (83), 2 states have call successors, (49), 2 states have call predecessors, (49), 3 states have return successors, (46), 3 states have call predecessors, (46), 1 states have call successors, (46) [2023-04-03 06:01:43,791 INFO L276 IsEmpty]: Start isEmpty. Operand 6662 states and 9503 transitions. [2023-04-03 06:01:43,798 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 449 [2023-04-03 06:01:43,798 INFO L187 NwaCegarLoop]: Found error trace [2023-04-03 06:01:43,799 INFO L195 NwaCegarLoop]: trace histogram [25, 25, 25, 25, 25, 25, 25, 25, 25, 8, 8, 8, 8, 8, 8, 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] [2023-04-03 06:01:43,799 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-04-03 06:01:43,799 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-03 06:01:43,799 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-03 06:01:43,800 INFO L85 PathProgramCache]: Analyzing trace with hash 344799182, now seen corresponding path program 1 times [2023-04-03 06:01:43,800 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-03 06:01:43,800 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [509684389] [2023-04-03 06:01:43,800 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-03 06:01:43,800 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-03 06:01:43,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-03 06:01:44,295 INFO L134 CoverageAnalysis]: Checked inductivity of 3198 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3198 trivial. 0 not checked. [2023-04-03 06:01:44,295 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-03 06:01:44,296 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [509684389] [2023-04-03 06:01:44,296 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [509684389] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-03 06:01:44,296 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-03 06:01:44,296 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-04-03 06:01:44,296 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1146967369] [2023-04-03 06:01:44,296 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-03 06:01:44,298 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-04-03 06:01:44,298 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-03 06:01:44,298 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-04-03 06:01:44,299 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-04-03 06:01:44,299 INFO L87 Difference]: Start difference. First operand 6662 states and 9503 transitions. Second operand has 3 states, 3 states have (on average 29.333333333333332) internal successors, (88), 3 states have internal predecessors, (88), 3 states have call successors, (52), 3 states have call predecessors, (52), 2 states have return successors, (49), 2 states have call predecessors, (49), 2 states have call successors, (49) [2023-04-03 06:01:46,911 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.43s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2023-04-03 06:01:48,781 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-03 06:01:48,782 INFO L93 Difference]: Finished difference Result 6664 states and 9504 transitions. [2023-04-03 06:01:48,782 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-04-03 06:01:48,782 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 29.333333333333332) internal successors, (88), 3 states have internal predecessors, (88), 3 states have call successors, (52), 3 states have call predecessors, (52), 2 states have return successors, (49), 2 states have call predecessors, (49), 2 states have call successors, (49) Word has length 448 [2023-04-03 06:01:48,783 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-03 06:01:48,830 INFO L225 Difference]: With dead ends: 6664 [2023-04-03 06:01:48,830 INFO L226 Difference]: Without dead ends: 6661 [2023-04-03 06:01:48,842 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-04-03 06:01:48,843 INFO L413 NwaCegarLoop]: 3958 mSDtfsCounter, 4266 mSDsluCounter, 1 mSDsCounter, 0 mSdLazyCounter, 398 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4266 SdHoareTripleChecker+Valid, 3959 SdHoareTripleChecker+Invalid, 398 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 398 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.2s IncrementalHoareTripleChecker+Time [2023-04-03 06:01:48,846 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4266 Valid, 3959 Invalid, 398 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 398 Invalid, 0 Unknown, 0 Unchecked, 4.2s Time] [2023-04-03 06:01:48,857 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6661 states. [2023-04-03 06:01:49,143 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6661 to 6661. [2023-04-03 06:01:49,156 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6661 states, 4316 states have (on average 1.347312326227989) internal successors, (5815), 4363 states have internal predecessors, (5815), 1846 states have call successors, (1846), 499 states have call predecessors, (1846), 498 states have return successors, (1840), 1829 states have call predecessors, (1840), 1836 states have call successors, (1840) [2023-04-03 06:01:49,196 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6661 states to 6661 states and 9501 transitions. [2023-04-03 06:01:49,197 INFO L78 Accepts]: Start accepts. Automaton has 6661 states and 9501 transitions. Word has length 448 [2023-04-03 06:01:49,198 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-03 06:01:49,198 INFO L495 AbstractCegarLoop]: Abstraction has 6661 states and 9501 transitions. [2023-04-03 06:01:49,198 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 29.333333333333332) internal successors, (88), 3 states have internal predecessors, (88), 3 states have call successors, (52), 3 states have call predecessors, (52), 2 states have return successors, (49), 2 states have call predecessors, (49), 2 states have call successors, (49) [2023-04-03 06:01:49,199 INFO L276 IsEmpty]: Start isEmpty. Operand 6661 states and 9501 transitions. [2023-04-03 06:01:49,203 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 450 [2023-04-03 06:01:49,203 INFO L187 NwaCegarLoop]: Found error trace [2023-04-03 06:01:49,203 INFO L195 NwaCegarLoop]: trace histogram [25, 25, 25, 25, 25, 25, 25, 25, 25, 8, 8, 8, 8, 8, 8, 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 06:01:49,203 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-04-03 06:01:49,204 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-03 06:01:49,204 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-03 06:01:49,205 INFO L85 PathProgramCache]: Analyzing trace with hash 2097318046, now seen corresponding path program 1 times [2023-04-03 06:01:49,205 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-03 06:01:49,205 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2040908221] [2023-04-03 06:01:49,205 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-03 06:01:49,205 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-03 06:01:49,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-03 06:01:49,677 INFO L134 CoverageAnalysis]: Checked inductivity of 3198 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3198 trivial. 0 not checked. [2023-04-03 06:01:49,677 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-03 06:01:49,677 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2040908221] [2023-04-03 06:01:49,677 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2040908221] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-03 06:01:49,677 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-03 06:01:49,678 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-04-03 06:01:49,678 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1079880567] [2023-04-03 06:01:49,678 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-03 06:01:49,678 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-04-03 06:01:49,679 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-03 06:01:49,679 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-04-03 06:01:49,679 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-04-03 06:01:49,680 INFO L87 Difference]: Start difference. First operand 6661 states and 9501 transitions. Second operand has 3 states, 3 states have (on average 29.666666666666668) internal successors, (89), 3 states have internal predecessors, (89), 3 states have call successors, (52), 3 states have call predecessors, (52), 2 states have return successors, (49), 2 states have call predecessors, (49), 2 states have call successors, (49) [2023-04-03 06:01:52,740 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2023-04-03 06:01:54,609 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.36s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-04-03 06:01:55,513 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-03 06:01:55,513 INFO L93 Difference]: Finished difference Result 6663 states and 9502 transitions. [2023-04-03 06:01:55,513 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-04-03 06:01:55,513 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 29.666666666666668) internal successors, (89), 3 states have internal predecessors, (89), 3 states have call successors, (52), 3 states have call predecessors, (52), 2 states have return successors, (49), 2 states have call predecessors, (49), 2 states have call successors, (49) Word has length 449 [2023-04-03 06:01:55,515 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-03 06:01:55,562 INFO L225 Difference]: With dead ends: 6663 [2023-04-03 06:01:55,562 INFO L226 Difference]: Without dead ends: 6660 [2023-04-03 06:01:55,570 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-04-03 06:01:55,571 INFO L413 NwaCegarLoop]: 3956 mSDtfsCounter, 4263 mSDsluCounter, 1 mSDsCounter, 0 mSdLazyCounter, 397 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4263 SdHoareTripleChecker+Valid, 3957 SdHoareTripleChecker+Invalid, 398 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 397 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.6s IncrementalHoareTripleChecker+Time [2023-04-03 06:01:55,571 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4263 Valid, 3957 Invalid, 398 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 397 Invalid, 1 Unknown, 0 Unchecked, 5.6s Time] [2023-04-03 06:01:55,581 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6660 states. [2023-04-03 06:01:55,961 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6660 to 6660. [2023-04-03 06:01:55,973 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6660 states, 4316 states have (on average 1.3470806302131604) internal successors, (5814), 4362 states have internal predecessors, (5814), 1845 states have call successors, (1845), 499 states have call predecessors, (1845), 498 states have return successors, (1840), 1829 states have call predecessors, (1840), 1836 states have call successors, (1840) [2023-04-03 06:01:56,009 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6660 states to 6660 states and 9499 transitions. [2023-04-03 06:01:56,010 INFO L78 Accepts]: Start accepts. Automaton has 6660 states and 9499 transitions. Word has length 449 [2023-04-03 06:01:56,011 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-03 06:01:56,011 INFO L495 AbstractCegarLoop]: Abstraction has 6660 states and 9499 transitions. [2023-04-03 06:01:56,011 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 29.666666666666668) internal successors, (89), 3 states have internal predecessors, (89), 3 states have call successors, (52), 3 states have call predecessors, (52), 2 states have return successors, (49), 2 states have call predecessors, (49), 2 states have call successors, (49) [2023-04-03 06:01:56,012 INFO L276 IsEmpty]: Start isEmpty. Operand 6660 states and 9499 transitions. [2023-04-03 06:01:56,015 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 451 [2023-04-03 06:01:56,015 INFO L187 NwaCegarLoop]: Found error trace [2023-04-03 06:01:56,015 INFO L195 NwaCegarLoop]: trace histogram [25, 25, 25, 25, 25, 25, 25, 25, 25, 8, 8, 8, 8, 8, 8, 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] [2023-04-03 06:01:56,015 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-04-03 06:01:56,016 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-03 06:01:56,016 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-03 06:01:56,016 INFO L85 PathProgramCache]: Analyzing trace with hash 590832849, now seen corresponding path program 1 times [2023-04-03 06:01:56,016 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-03 06:01:56,016 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [674041661] [2023-04-03 06:01:56,016 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-03 06:01:56,017 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-03 06:01:56,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-03 06:01:56,719 INFO L134 CoverageAnalysis]: Checked inductivity of 3198 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3198 trivial. 0 not checked. [2023-04-03 06:01:56,719 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-03 06:01:56,719 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [674041661] [2023-04-03 06:01:56,719 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [674041661] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-03 06:01:56,719 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-03 06:01:56,719 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-04-03 06:01:56,720 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [762476818] [2023-04-03 06:01:56,720 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-03 06:01:56,720 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-04-03 06:01:56,720 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-03 06:01:56,722 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-04-03 06:01:56,722 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-04-03 06:01:56,722 INFO L87 Difference]: Start difference. First operand 6660 states and 9499 transitions. Second operand has 3 states, 3 states have (on average 30.0) internal successors, (90), 3 states have internal predecessors, (90), 3 states have call successors, (52), 3 states have call predecessors, (52), 2 states have return successors, (49), 2 states have call predecessors, (49), 2 states have call successors, (49) [2023-04-03 06:02:01,277 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2023-04-03 06:02:03,287 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2023-04-03 06:02:06,322 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-04-03 06:02:07,523 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.20s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-04-03 06:02:09,555 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-03 06:02:09,555 INFO L93 Difference]: Finished difference Result 11674 states and 16525 transitions. [2023-04-03 06:02:09,555 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-04-03 06:02:09,556 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 30.0) internal successors, (90), 3 states have internal predecessors, (90), 3 states have call successors, (52), 3 states have call predecessors, (52), 2 states have return successors, (49), 2 states have call predecessors, (49), 2 states have call successors, (49) Word has length 450 [2023-04-03 06:02:09,557 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-03 06:02:09,619 INFO L225 Difference]: With dead ends: 11674 [2023-04-03 06:02:09,619 INFO L226 Difference]: Without dead ends: 11670 [2023-04-03 06:02:09,631 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 06:02:09,632 INFO L413 NwaCegarLoop]: 4955 mSDtfsCounter, 3117 mSDsluCounter, 3795 mSDsCounter, 0 mSdLazyCounter, 880 mSolverCounterSat, 4 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3117 SdHoareTripleChecker+Valid, 8750 SdHoareTripleChecker+Invalid, 887 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 880 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.5s IncrementalHoareTripleChecker+Time [2023-04-03 06:02:09,632 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3117 Valid, 8750 Invalid, 887 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 880 Invalid, 3 Unknown, 0 Unchecked, 12.5s Time] [2023-04-03 06:02:09,645 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11670 states. [2023-04-03 06:02:10,150 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11670 to 11666. [2023-04-03 06:02:10,168 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11666 states, 7513 states have (on average 1.3355517103686942) internal successors, (10034), 7595 states have internal predecessors, (10034), 3234 states have call successors, (3234), 926 states have call predecessors, (3234), 918 states have return successors, (3248), 3200 states have call predecessors, (3248), 3224 states have call successors, (3248) [2023-04-03 06:02:10,221 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11666 states to 11666 states and 16516 transitions. [2023-04-03 06:02:10,222 INFO L78 Accepts]: Start accepts. Automaton has 11666 states and 16516 transitions. Word has length 450 [2023-04-03 06:02:10,223 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-03 06:02:10,223 INFO L495 AbstractCegarLoop]: Abstraction has 11666 states and 16516 transitions. [2023-04-03 06:02:10,223 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 30.0) internal successors, (90), 3 states have internal predecessors, (90), 3 states have call successors, (52), 3 states have call predecessors, (52), 2 states have return successors, (49), 2 states have call predecessors, (49), 2 states have call successors, (49) [2023-04-03 06:02:10,223 INFO L276 IsEmpty]: Start isEmpty. Operand 11666 states and 16516 transitions. [2023-04-03 06:02:10,227 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 452 [2023-04-03 06:02:10,227 INFO L187 NwaCegarLoop]: Found error trace [2023-04-03 06:02:10,227 INFO L195 NwaCegarLoop]: trace histogram [25, 25, 25, 25, 25, 25, 25, 25, 25, 8, 8, 8, 8, 8, 8, 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] [2023-04-03 06:02:10,228 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-04-03 06:02:10,228 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-03 06:02:10,228 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-03 06:02:10,228 INFO L85 PathProgramCache]: Analyzing trace with hash 1134436865, now seen corresponding path program 1 times [2023-04-03 06:02:10,228 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-03 06:02:10,229 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1317595419] [2023-04-03 06:02:10,229 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-03 06:02:10,229 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-03 06:02:10,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-03 06:02:10,733 INFO L134 CoverageAnalysis]: Checked inductivity of 3198 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3198 trivial. 0 not checked. [2023-04-03 06:02:10,733 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-03 06:02:10,733 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1317595419] [2023-04-03 06:02:10,733 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1317595419] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-03 06:02:10,733 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-03 06:02:10,733 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-04-03 06:02:10,734 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1377589928] [2023-04-03 06:02:10,734 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-03 06:02:10,734 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-04-03 06:02:10,734 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-03 06:02:10,735 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-04-03 06:02:10,735 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-04-03 06:02:10,735 INFO L87 Difference]: Start difference. First operand 11666 states and 16516 transitions. Second operand has 3 states, 3 states have (on average 30.333333333333332) internal successors, (91), 3 states have internal predecessors, (91), 3 states have call successors, (52), 3 states have call predecessors, (52), 2 states have return successors, (49), 2 states have call predecessors, (49), 2 states have call successors, (49) [2023-04-03 06:02:13,738 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2023-04-03 06:02:15,647 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.52s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-04-03 06:02:16,372 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-03 06:02:16,372 INFO L93 Difference]: Finished difference Result 11668 states and 16517 transitions. [2023-04-03 06:02:16,372 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-04-03 06:02:16,373 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 30.333333333333332) internal successors, (91), 3 states have internal predecessors, (91), 3 states have call successors, (52), 3 states have call predecessors, (52), 2 states have return successors, (49), 2 states have call predecessors, (49), 2 states have call successors, (49) Word has length 451 [2023-04-03 06:02:16,374 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-03 06:02:16,439 INFO L225 Difference]: With dead ends: 11668 [2023-04-03 06:02:16,439 INFO L226 Difference]: Without dead ends: 11665 [2023-04-03 06:02:16,451 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-04-03 06:02:16,452 INFO L413 NwaCegarLoop]: 3954 mSDtfsCounter, 4259 mSDsluCounter, 1 mSDsCounter, 0 mSdLazyCounter, 397 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4259 SdHoareTripleChecker+Valid, 3955 SdHoareTripleChecker+Invalid, 398 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 397 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.3s IncrementalHoareTripleChecker+Time [2023-04-03 06:02:16,453 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4259 Valid, 3955 Invalid, 398 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 397 Invalid, 1 Unknown, 0 Unchecked, 5.3s Time] [2023-04-03 06:02:16,467 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11665 states. [2023-04-03 06:02:17,124 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11665 to 11665. [2023-04-03 06:02:17,141 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11665 states, 7513 states have (on average 1.3354186077465726) internal successors, (10033), 7594 states have internal predecessors, (10033), 3233 states have call successors, (3233), 926 states have call predecessors, (3233), 918 states have return successors, (3248), 3200 states have call predecessors, (3248), 3224 states have call successors, (3248) [2023-04-03 06:02:17,191 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11665 states to 11665 states and 16514 transitions. [2023-04-03 06:02:17,192 INFO L78 Accepts]: Start accepts. Automaton has 11665 states and 16514 transitions. Word has length 451 [2023-04-03 06:02:17,192 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-03 06:02:17,192 INFO L495 AbstractCegarLoop]: Abstraction has 11665 states and 16514 transitions. [2023-04-03 06:02:17,193 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 30.333333333333332) internal successors, (91), 3 states have internal predecessors, (91), 3 states have call successors, (52), 3 states have call predecessors, (52), 2 states have return successors, (49), 2 states have call predecessors, (49), 2 states have call successors, (49) [2023-04-03 06:02:17,193 INFO L276 IsEmpty]: Start isEmpty. Operand 11665 states and 16514 transitions. [2023-04-03 06:02:17,196 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 453 [2023-04-03 06:02:17,196 INFO L187 NwaCegarLoop]: Found error trace [2023-04-03 06:02:17,197 INFO L195 NwaCegarLoop]: trace histogram [25, 25, 25, 25, 25, 25, 25, 25, 25, 8, 8, 8, 8, 8, 8, 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 06:02:17,197 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-04-03 06:02:17,197 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-03 06:02:17,197 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-03 06:02:17,198 INFO L85 PathProgramCache]: Analyzing trace with hash 806297044, now seen corresponding path program 1 times [2023-04-03 06:02:17,198 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-03 06:02:17,198 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1231580507] [2023-04-03 06:02:17,198 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-03 06:02:17,198 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-03 06:02:17,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-03 06:02:17,791 INFO L134 CoverageAnalysis]: Checked inductivity of 3198 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3198 trivial. 0 not checked. [2023-04-03 06:02:17,792 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-03 06:02:17,792 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1231580507] [2023-04-03 06:02:17,792 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1231580507] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-03 06:02:17,792 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-03 06:02:17,792 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-04-03 06:02:17,792 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1281810248] [2023-04-03 06:02:17,792 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-03 06:02:17,793 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-04-03 06:02:17,793 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-03 06:02:17,794 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-04-03 06:02:17,794 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-04-03 06:02:17,794 INFO L87 Difference]: Start difference. First operand 11665 states and 16514 transitions. Second operand has 3 states, 3 states have (on average 30.666666666666668) internal successors, (92), 3 states have internal predecessors, (92), 3 states have call successors, (52), 3 states have call predecessors, (52), 2 states have return successors, (49), 2 states have call predecessors, (49), 2 states have call successors, (49) [2023-04-03 06:02:20,597 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2023-04-03 06:02:22,601 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2023-04-03 06:02:26,056 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-03 06:02:26,056 INFO L93 Difference]: Finished difference Result 15481 states and 21700 transitions. [2023-04-03 06:02:26,056 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-04-03 06:02:26,057 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 30.666666666666668) internal successors, (92), 3 states have internal predecessors, (92), 3 states have call successors, (52), 3 states have call predecessors, (52), 2 states have return successors, (49), 2 states have call predecessors, (49), 2 states have call successors, (49) Word has length 452 [2023-04-03 06:02:26,057 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-03 06:02:26,211 INFO L225 Difference]: With dead ends: 15481 [2023-04-03 06:02:26,212 INFO L226 Difference]: Without dead ends: 15422 [2023-04-03 06:02:26,222 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 06:02:26,224 INFO L413 NwaCegarLoop]: 3968 mSDtfsCounter, 2865 mSDsluCounter, 2685 mSDsCounter, 0 mSdLazyCounter, 678 mSolverCounterSat, 2 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2865 SdHoareTripleChecker+Valid, 6653 SdHoareTripleChecker+Invalid, 682 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 678 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.8s IncrementalHoareTripleChecker+Time [2023-04-03 06:02:26,224 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2865 Valid, 6653 Invalid, 682 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 678 Invalid, 2 Unknown, 0 Unchecked, 7.8s Time] [2023-04-03 06:02:26,235 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15422 states. [2023-04-03 06:02:26,855 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15422 to 15418. [2023-04-03 06:02:26,877 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15418 states, 9840 states have (on average 1.320020325203252) internal successors, (12989), 9947 states have internal predecessors, (12989), 4306 states have call successors, (4306), 1280 states have call predecessors, (4306), 1271 states have return successors, (4324), 4272 states have call predecessors, (4324), 4300 states have call successors, (4324) [2023-04-03 06:02:26,950 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15418 states to 15418 states and 21619 transitions. [2023-04-03 06:02:26,951 INFO L78 Accepts]: Start accepts. Automaton has 15418 states and 21619 transitions. Word has length 452 [2023-04-03 06:02:26,951 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-03 06:02:26,951 INFO L495 AbstractCegarLoop]: Abstraction has 15418 states and 21619 transitions. [2023-04-03 06:02:26,952 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 30.666666666666668) internal successors, (92), 3 states have internal predecessors, (92), 3 states have call successors, (52), 3 states have call predecessors, (52), 2 states have return successors, (49), 2 states have call predecessors, (49), 2 states have call successors, (49) [2023-04-03 06:02:26,952 INFO L276 IsEmpty]: Start isEmpty. Operand 15418 states and 21619 transitions. [2023-04-03 06:02:26,960 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 535 [2023-04-03 06:02:26,960 INFO L187 NwaCegarLoop]: Found error trace [2023-04-03 06:02:26,961 INFO L195 NwaCegarLoop]: trace histogram [27, 27, 27, 27, 27, 27, 27, 27, 27, 8, 8, 8, 8, 8, 8, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-03 06:02:26,961 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-04-03 06:02:26,961 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-03 06:02:26,961 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-03 06:02:26,961 INFO L85 PathProgramCache]: Analyzing trace with hash -1380673406, now seen corresponding path program 1 times [2023-04-03 06:02:26,961 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-03 06:02:26,962 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [988466106] [2023-04-03 06:02:26,962 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-03 06:02:26,962 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-03 06:02:27,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-03 06:02:27,402 INFO L134 CoverageAnalysis]: Checked inductivity of 3715 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 3708 trivial. 0 not checked. [2023-04-03 06:02:27,402 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-03 06:02:27,402 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [988466106] [2023-04-03 06:02:27,403 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [988466106] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-03 06:02:27,403 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-03 06:02:27,403 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-04-03 06:02:27,403 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1956482584] [2023-04-03 06:02:27,403 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-03 06:02:27,404 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-04-03 06:02:27,404 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-03 06:02:27,405 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-04-03 06:02:27,405 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-04-03 06:02:27,405 INFO L87 Difference]: Start difference. First operand 15418 states and 21619 transitions. Second operand has 3 states, 3 states have (on average 43.333333333333336) internal successors, (130), 3 states have internal predecessors, (130), 2 states have call successors, (66), 2 states have call predecessors, (66), 1 states have return successors, (61), 2 states have call predecessors, (61), 2 states have call successors, (61) [2023-04-03 06:02:30,364 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2023-04-03 06:02:33,121 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-04-03 06:02:34,137 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-03 06:02:34,137 INFO L93 Difference]: Finished difference Result 23732 states and 33176 transitions. [2023-04-03 06:02:34,137 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-04-03 06:02:34,138 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 43.333333333333336) internal successors, (130), 3 states have internal predecessors, (130), 2 states have call successors, (66), 2 states have call predecessors, (66), 1 states have return successors, (61), 2 states have call predecessors, (61), 2 states have call successors, (61) Word has length 534 [2023-04-03 06:02:34,138 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-03 06:02:34,186 INFO L225 Difference]: With dead ends: 23732 [2023-04-03 06:02:34,186 INFO L226 Difference]: Without dead ends: 8395 [2023-04-03 06:02:34,250 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-04-03 06:02:34,250 INFO L413 NwaCegarLoop]: 3947 mSDtfsCounter, 4340 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 398 mSolverCounterSat, 1 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4340 SdHoareTripleChecker+Valid, 3954 SdHoareTripleChecker+Invalid, 401 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 398 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.3s IncrementalHoareTripleChecker+Time [2023-04-03 06:02:34,251 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4340 Valid, 3954 Invalid, 401 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 398 Invalid, 2 Unknown, 0 Unchecked, 6.3s Time] [2023-04-03 06:02:34,258 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8395 states. [2023-04-03 06:02:34,613 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8395 to 8388. [2023-04-03 06:02:34,624 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8388 states, 5324 states have (on average 1.3149887302779866) internal successors, (7001), 5385 states have internal predecessors, (7001), 2325 states have call successors, (2325), 742 states have call predecessors, (2325), 738 states have return successors, (2335), 2305 states have call predecessors, (2335), 2319 states have call successors, (2335) [2023-04-03 06:02:34,662 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8388 states to 8388 states and 11661 transitions. [2023-04-03 06:02:34,667 INFO L78 Accepts]: Start accepts. Automaton has 8388 states and 11661 transitions. Word has length 534 [2023-04-03 06:02:34,668 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-03 06:02:34,668 INFO L495 AbstractCegarLoop]: Abstraction has 8388 states and 11661 transitions. [2023-04-03 06:02:34,668 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 43.333333333333336) internal successors, (130), 3 states have internal predecessors, (130), 2 states have call successors, (66), 2 states have call predecessors, (66), 1 states have return successors, (61), 2 states have call predecessors, (61), 2 states have call successors, (61) [2023-04-03 06:02:34,668 INFO L276 IsEmpty]: Start isEmpty. Operand 8388 states and 11661 transitions. [2023-04-03 06:02:34,677 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 551 [2023-04-03 06:02:34,677 INFO L187 NwaCegarLoop]: Found error trace [2023-04-03 06:02:34,677 INFO L195 NwaCegarLoop]: trace histogram [28, 28, 28, 28, 28, 28, 28, 28, 28, 8, 8, 8, 8, 8, 8, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-03 06:02:34,677 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-04-03 06:02:34,678 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-03 06:02:34,678 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-03 06:02:34,678 INFO L85 PathProgramCache]: Analyzing trace with hash 853595367, now seen corresponding path program 1 times [2023-04-03 06:02:34,678 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-03 06:02:34,678 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [986210265] [2023-04-03 06:02:34,678 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-03 06:02:34,679 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-03 06:02:34,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-03 06:02:36,339 INFO L134 CoverageAnalysis]: Checked inductivity of 3985 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 3978 trivial. 0 not checked. [2023-04-03 06:02:36,340 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-03 06:02:36,340 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [986210265] [2023-04-03 06:02:36,340 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [986210265] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-03 06:02:36,340 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-03 06:02:36,340 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-04-03 06:02:36,340 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1684528770] [2023-04-03 06:02:36,340 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-03 06:02:36,341 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-04-03 06:02:36,341 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-03 06:02:36,342 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-04-03 06:02:36,342 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-04-03 06:02:36,342 INFO L87 Difference]: Start difference. First operand 8388 states and 11661 transitions. Second operand has 6 states, 6 states have (on average 22.166666666666668) internal successors, (133), 5 states have internal predecessors, (133), 3 states have call successors, (68), 2 states have call predecessors, (68), 2 states have return successors, (63), 4 states have call predecessors, (63), 3 states have call successors, (63) [2023-04-03 06:02:41,070 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2023-04-03 06:02:42,900 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.83s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2023-04-03 06:02:44,674 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.77s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2023-04-03 06:02:46,685 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2023-04-03 06:02:48,690 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2023-04-03 06:02:50,911 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.21s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-04-03 06:02:54,158 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-04-03 06:02:59,263 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-03 06:02:59,263 INFO L93 Difference]: Finished difference Result 16344 states and 22730 transitions. [2023-04-03 06:02:59,264 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-04-03 06:02:59,264 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 22.166666666666668) internal successors, (133), 5 states have internal predecessors, (133), 3 states have call successors, (68), 2 states have call predecessors, (68), 2 states have return successors, (63), 4 states have call predecessors, (63), 3 states have call successors, (63) Word has length 550 [2023-04-03 06:02:59,265 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-03 06:02:59,306 INFO L225 Difference]: With dead ends: 16344 [2023-04-03 06:02:59,307 INFO L226 Difference]: Without dead ends: 8343 [2023-04-03 06:02:59,336 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2023-04-03 06:02:59,337 INFO L413 NwaCegarLoop]: 3951 mSDtfsCounter, 9 mSDsluCounter, 15775 mSDsCounter, 0 mSdLazyCounter, 2006 mSolverCounterSat, 5 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 21.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 19726 SdHoareTripleChecker+Invalid, 2015 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 2006 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 22.4s IncrementalHoareTripleChecker+Time [2023-04-03 06:02:59,337 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 19726 Invalid, 2015 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [5 Valid, 2006 Invalid, 4 Unknown, 0 Unchecked, 22.4s Time] [2023-04-03 06:02:59,347 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8343 states. [2023-04-03 06:02:59,764 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8343 to 8315. [2023-04-03 06:02:59,778 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8315 states, 5285 states have (on average 1.3159886471144748) internal successors, (6955), 5347 states have internal predecessors, (6955), 2308 states have call successors, (2308), 728 states have call predecessors, (2308), 721 states have return successors, (2314), 2284 states have call predecessors, (2314), 2302 states have call successors, (2314) [2023-04-03 06:02:59,824 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8315 states to 8315 states and 11577 transitions. [2023-04-03 06:02:59,828 INFO L78 Accepts]: Start accepts. Automaton has 8315 states and 11577 transitions. Word has length 550 [2023-04-03 06:02:59,828 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-03 06:02:59,828 INFO L495 AbstractCegarLoop]: Abstraction has 8315 states and 11577 transitions. [2023-04-03 06:02:59,829 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 22.166666666666668) internal successors, (133), 5 states have internal predecessors, (133), 3 states have call successors, (68), 2 states have call predecessors, (68), 2 states have return successors, (63), 4 states have call predecessors, (63), 3 states have call successors, (63) [2023-04-03 06:02:59,829 INFO L276 IsEmpty]: Start isEmpty. Operand 8315 states and 11577 transitions. [2023-04-03 06:02:59,837 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 554 [2023-04-03 06:02:59,837 INFO L187 NwaCegarLoop]: Found error trace [2023-04-03 06:02:59,837 INFO L195 NwaCegarLoop]: trace histogram [28, 28, 28, 28, 28, 28, 28, 28, 28, 8, 8, 8, 8, 8, 8, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-03 06:02:59,838 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-04-03 06:02:59,838 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-03 06:02:59,838 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-03 06:02:59,838 INFO L85 PathProgramCache]: Analyzing trace with hash 1613479543, now seen corresponding path program 1 times [2023-04-03 06:02:59,839 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-03 06:02:59,839 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [768513613] [2023-04-03 06:02:59,839 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-03 06:02:59,839 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-03 06:03:00,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-03 06:03:00,317 INFO L134 CoverageAnalysis]: Checked inductivity of 3983 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 3976 trivial. 0 not checked. [2023-04-03 06:03:00,317 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-03 06:03:00,317 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [768513613] [2023-04-03 06:03:00,317 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [768513613] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-03 06:03:00,317 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-03 06:03:00,318 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-04-03 06:03:00,318 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1013279632] [2023-04-03 06:03:00,318 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-03 06:03:00,318 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-04-03 06:03:00,318 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-03 06:03:00,319 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-04-03 06:03:00,319 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-04-03 06:03:00,319 INFO L87 Difference]: Start difference. First operand 8315 states and 11577 transitions. Second operand has 3 states, 3 states have (on average 45.666666666666664) internal successors, (137), 3 states have internal predecessors, (137), 3 states have call successors, (68), 2 states have call predecessors, (68), 2 states have return successors, (63), 3 states have call predecessors, (63), 3 states have call successors, (63) [2023-04-03 06:03:03,574 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.98s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2023-04-03 06:03:05,586 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2023-04-03 06:03:08,725 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-04-03 06:03:10,732 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-04-03 06:03:12,799 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-03 06:03:12,800 INFO L93 Difference]: Finished difference Result 20327 states and 28281 transitions. [2023-04-03 06:03:12,800 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-04-03 06:03:12,800 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 45.666666666666664) internal successors, (137), 3 states have internal predecessors, (137), 3 states have call successors, (68), 2 states have call predecessors, (68), 2 states have return successors, (63), 3 states have call predecessors, (63), 3 states have call successors, (63) Word has length 553 [2023-04-03 06:03:12,801 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-03 06:03:12,883 INFO L225 Difference]: With dead ends: 20327 [2023-04-03 06:03:12,884 INFO L226 Difference]: Without dead ends: 12445 [2023-04-03 06:03:12,928 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-04-03 06:03:12,928 INFO L413 NwaCegarLoop]: 4538 mSDtfsCounter, 3199 mSDsluCounter, 3246 mSDsCounter, 0 mSdLazyCounter, 854 mSolverCounterSat, 16 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3199 SdHoareTripleChecker+Valid, 7784 SdHoareTripleChecker+Invalid, 873 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 854 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.8s IncrementalHoareTripleChecker+Time [2023-04-03 06:03:12,929 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3199 Valid, 7784 Invalid, 873 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 854 Invalid, 3 Unknown, 0 Unchecked, 11.8s Time] [2023-04-03 06:03:12,944 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12445 states. [2023-04-03 06:03:13,596 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12445 to 12326. [2023-04-03 06:03:13,612 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12326 states, 7864 states have (on average 1.3142166836215667) internal successors, (10335), 7955 states have internal predecessors, (10335), 3401 states have call successors, (3401), 1070 states have call predecessors, (3401), 1060 states have return successors, (3407), 3368 states have call predecessors, (3407), 3395 states have call successors, (3407) [2023-04-03 06:03:13,690 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12326 states to 12326 states and 17143 transitions. [2023-04-03 06:03:13,695 INFO L78 Accepts]: Start accepts. Automaton has 12326 states and 17143 transitions. Word has length 553 [2023-04-03 06:03:13,696 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-03 06:03:13,696 INFO L495 AbstractCegarLoop]: Abstraction has 12326 states and 17143 transitions. [2023-04-03 06:03:13,697 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 45.666666666666664) internal successors, (137), 3 states have internal predecessors, (137), 3 states have call successors, (68), 2 states have call predecessors, (68), 2 states have return successors, (63), 3 states have call predecessors, (63), 3 states have call successors, (63) [2023-04-03 06:03:13,697 INFO L276 IsEmpty]: Start isEmpty. Operand 12326 states and 17143 transitions. [2023-04-03 06:03:13,704 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 553 [2023-04-03 06:03:13,704 INFO L187 NwaCegarLoop]: Found error trace [2023-04-03 06:03:13,704 INFO L195 NwaCegarLoop]: trace histogram [28, 28, 28, 28, 28, 28, 28, 28, 28, 8, 8, 8, 8, 8, 8, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-03 06:03:13,704 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-04-03 06:03:13,705 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-03 06:03:13,705 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-03 06:03:13,705 INFO L85 PathProgramCache]: Analyzing trace with hash 1403561561, now seen corresponding path program 1 times [2023-04-03 06:03:13,705 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-03 06:03:13,705 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [516340689] [2023-04-03 06:03:13,706 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-03 06:03:13,706 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-03 06:03:13,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-03 06:03:15,589 INFO L134 CoverageAnalysis]: Checked inductivity of 3983 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3983 trivial. 0 not checked. [2023-04-03 06:03:15,589 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-03 06:03:15,589 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [516340689] [2023-04-03 06:03:15,589 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [516340689] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-03 06:03:15,589 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-03 06:03:15,590 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-04-03 06:03:15,590 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [685330733] [2023-04-03 06:03:15,590 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-03 06:03:15,591 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-04-03 06:03:15,591 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-03 06:03:15,591 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-04-03 06:03:15,592 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2023-04-03 06:03:15,593 INFO L87 Difference]: Start difference. First operand 12326 states and 17143 transitions. Second operand has 8 states, 6 states have (on average 21.666666666666668) internal successors, (130), 6 states have internal predecessors, (130), 3 states have call successors, (68), 3 states have call predecessors, (68), 3 states have return successors, (63), 4 states have call predecessors, (63), 2 states have call successors, (63) [2023-04-03 06:03:20,440 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2023-04-03 06:03:22,454 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2023-04-03 06:03:24,459 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2023-04-03 06:03:26,463 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2023-04-03 06:03:27,530 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.07s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2023-04-03 06:03:29,251 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.72s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2023-04-03 06:03:31,266 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2023-04-03 06:03:34,199 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-04-03 06:03:37,072 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.79s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-04-03 06:03:39,345 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-04-03 06:03:42,405 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-04-03 06:03:44,999 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-04-03 06:03:50,121 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-03 06:03:50,122 INFO L93 Difference]: Finished difference Result 14425 states and 20065 transitions. [2023-04-03 06:03:50,122 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-04-03 06:03:50,122 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 6 states have (on average 21.666666666666668) internal successors, (130), 6 states have internal predecessors, (130), 3 states have call successors, (68), 3 states have call predecessors, (68), 3 states have return successors, (63), 4 states have call predecessors, (63), 2 states have call successors, (63) Word has length 552 [2023-04-03 06:03:50,123 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-03 06:03:50,197 INFO L225 Difference]: With dead ends: 14425 [2023-04-03 06:03:50,198 INFO L226 Difference]: Without dead ends: 14422 [2023-04-03 06:03:50,212 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2023-04-03 06:03:50,213 INFO L413 NwaCegarLoop]: 4327 mSDtfsCounter, 4861 mSDsluCounter, 18464 mSDsCounter, 0 mSdLazyCounter, 2359 mSolverCounterSat, 2101 mSolverCounterUnsat, 9 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 33.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4861 SdHoareTripleChecker+Valid, 22791 SdHoareTripleChecker+Invalid, 4469 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2101 IncrementalHoareTripleChecker+Valid, 2359 IncrementalHoareTripleChecker+Invalid, 9 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 33.8s IncrementalHoareTripleChecker+Time [2023-04-03 06:03:50,213 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4861 Valid, 22791 Invalid, 4469 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2101 Valid, 2359 Invalid, 9 Unknown, 0 Unchecked, 33.8s Time] [2023-04-03 06:03:50,228 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14422 states. [2023-04-03 06:03:51,013 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14422 to 14422. [2023-04-03 06:03:51,029 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14422 states, 9180 states have (on average 1.3101307189542484) internal successors, (12027), 9285 states have internal predecessors, (12027), 4014 states have call successors, (4014), 1238 states have call predecessors, (4014), 1227 states have return successors, (4020), 3979 states have call predecessors, (4020), 4008 states have call successors, (4020) [2023-04-03 06:03:51,098 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14422 states to 14422 states and 20061 transitions. [2023-04-03 06:03:51,099 INFO L78 Accepts]: Start accepts. Automaton has 14422 states and 20061 transitions. Word has length 552 [2023-04-03 06:03:51,100 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-03 06:03:51,100 INFO L495 AbstractCegarLoop]: Abstraction has 14422 states and 20061 transitions. [2023-04-03 06:03:51,100 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 6 states have (on average 21.666666666666668) internal successors, (130), 6 states have internal predecessors, (130), 3 states have call successors, (68), 3 states have call predecessors, (68), 3 states have return successors, (63), 4 states have call predecessors, (63), 2 states have call successors, (63) [2023-04-03 06:03:51,100 INFO L276 IsEmpty]: Start isEmpty. Operand 14422 states and 20061 transitions. [2023-04-03 06:03:51,108 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 561 [2023-04-03 06:03:51,108 INFO L187 NwaCegarLoop]: Found error trace [2023-04-03 06:03:51,109 INFO L195 NwaCegarLoop]: trace histogram [28, 28, 28, 28, 28, 28, 28, 28, 28, 8, 8, 8, 8, 8, 8, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-03 06:03:51,109 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-04-03 06:03:51,109 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-03 06:03:51,110 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-03 06:03:51,110 INFO L85 PathProgramCache]: Analyzing trace with hash 1121384536, now seen corresponding path program 1 times [2023-04-03 06:03:51,110 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-03 06:03:51,110 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [746722944] [2023-04-03 06:03:51,110 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-03 06:03:51,110 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-03 06:03:51,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-03 06:03:51,922 INFO L134 CoverageAnalysis]: Checked inductivity of 3985 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3985 trivial. 0 not checked. [2023-04-03 06:03:51,922 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-03 06:03:51,923 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [746722944] [2023-04-03 06:03:51,923 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [746722944] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-03 06:03:51,923 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-03 06:03:51,923 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-04-03 06:03:51,923 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [170526592] [2023-04-03 06:03:51,923 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-03 06:03:51,924 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-04-03 06:03:51,924 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-03 06:03:51,925 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-04-03 06:03:51,925 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-04-03 06:03:51,925 INFO L87 Difference]: Start difference. First operand 14422 states and 20061 transitions. Second operand has 3 states, 3 states have (on average 44.333333333333336) internal successors, (133), 3 states have internal predecessors, (133), 3 states have call successors, (70), 3 states have call predecessors, (70), 2 states have return successors, (65), 2 states have call predecessors, (65), 2 states have call successors, (65) [2023-04-03 06:03:54,979 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2023-04-03 06:03:57,494 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.31s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-04-03 06:03:59,172 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-03 06:03:59,172 INFO L93 Difference]: Finished difference Result 14428 states and 20065 transitions. [2023-04-03 06:03:59,173 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-04-03 06:03:59,173 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 44.333333333333336) internal successors, (133), 3 states have internal predecessors, (133), 3 states have call successors, (70), 3 states have call predecessors, (70), 2 states have return successors, (65), 2 states have call predecessors, (65), 2 states have call successors, (65) Word has length 560 [2023-04-03 06:03:59,173 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-03 06:03:59,252 INFO L225 Difference]: With dead ends: 14428 [2023-04-03 06:03:59,252 INFO L226 Difference]: Without dead ends: 14425 [2023-04-03 06:03:59,266 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-04-03 06:03:59,266 INFO L413 NwaCegarLoop]: 5331 mSDtfsCounter, 2950 mSDsluCounter, 2677 mSDsCounter, 0 mSdLazyCounter, 832 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2950 SdHoareTripleChecker+Valid, 8008 SdHoareTripleChecker+Invalid, 833 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 832 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.6s IncrementalHoareTripleChecker+Time [2023-04-03 06:03:59,267 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2950 Valid, 8008 Invalid, 833 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 832 Invalid, 1 Unknown, 0 Unchecked, 6.6s Time] [2023-04-03 06:03:59,282 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14425 states. [2023-04-03 06:04:00,007 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14425 to 14421. [2023-04-03 06:04:00,023 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14421 states, 9180 states have (on average 1.3096949891067537) internal successors, (12023), 9284 states have internal predecessors, (12023), 4013 states have call successors, (4013), 1238 states have call predecessors, (4013), 1227 states have return successors, (4020), 3979 states have call predecessors, (4020), 4008 states have call successors, (4020) [2023-04-03 06:04:00,083 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14421 states to 14421 states and 20056 transitions. [2023-04-03 06:04:00,084 INFO L78 Accepts]: Start accepts. Automaton has 14421 states and 20056 transitions. Word has length 560 [2023-04-03 06:04:00,085 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-03 06:04:00,085 INFO L495 AbstractCegarLoop]: Abstraction has 14421 states and 20056 transitions. [2023-04-03 06:04:00,085 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 44.333333333333336) internal successors, (133), 3 states have internal predecessors, (133), 3 states have call successors, (70), 3 states have call predecessors, (70), 2 states have return successors, (65), 2 states have call predecessors, (65), 2 states have call successors, (65) [2023-04-03 06:04:00,085 INFO L276 IsEmpty]: Start isEmpty. Operand 14421 states and 20056 transitions. [2023-04-03 06:04:00,095 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 570 [2023-04-03 06:04:00,095 INFO L187 NwaCegarLoop]: Found error trace [2023-04-03 06:04:00,095 INFO L195 NwaCegarLoop]: trace histogram [28, 28, 28, 28, 28, 28, 28, 28, 28, 8, 8, 8, 8, 8, 8, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-03 06:04:00,095 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2023-04-03 06:04:00,096 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-03 06:04:00,096 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-03 06:04:00,096 INFO L85 PathProgramCache]: Analyzing trace with hash 1120949899, now seen corresponding path program 1 times [2023-04-03 06:04:00,096 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-03 06:04:00,096 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [36231345] [2023-04-03 06:04:00,097 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-03 06:04:00,097 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-03 06:04:00,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-03 06:04:02,293 INFO L134 CoverageAnalysis]: Checked inductivity of 4015 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 4005 trivial. 0 not checked. [2023-04-03 06:04:02,294 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-03 06:04:02,294 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [36231345] [2023-04-03 06:04:02,294 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [36231345] provided 0 perfect and 1 imperfect interpolant sequences [2023-04-03 06:04:02,294 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [79262769] [2023-04-03 06:04:02,294 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-03 06:04:02,294 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-03 06:04:02,294 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-03 06:04:02,298 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-04-03 06:04:02,299 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-04-03 06:04:03,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-03 06:04:03,969 INFO L262 TraceCheckSpWp]: Trace formula consists of 5897 conjuncts, 27 conjunts are in the unsatisfiable core [2023-04-03 06:04:04,004 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-04-03 06:04:04,315 INFO L134 CoverageAnalysis]: Checked inductivity of 4015 backedges. 32 proven. 0 refuted. 0 times theorem prover too weak. 3983 trivial. 0 not checked. [2023-04-03 06:04:04,315 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-04-03 06:04:04,316 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [79262769] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-03 06:04:04,316 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-04-03 06:04:04,316 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [9] total 14 [2023-04-03 06:04:04,316 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [380522424] [2023-04-03 06:04:04,316 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-03 06:04:04,317 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-04-03 06:04:04,317 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-03 06:04:04,318 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-04-03 06:04:04,318 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=152, Unknown=0, NotChecked=0, Total=182 [2023-04-03 06:04:04,318 INFO L87 Difference]: Start difference. First operand 14421 states and 20056 transitions. Second operand has 8 states, 6 states have (on average 23.833333333333332) internal successors, (143), 6 states have internal predecessors, (143), 3 states have call successors, (70), 3 states have call predecessors, (70), 4 states have return successors, (65), 4 states have call predecessors, (65), 2 states have call successors, (65)