/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/default/taipan/svcomp-Reach-32bit-Taipan_Default.epf -tc ../../../trunk/examples/toolchains/AutomizerC.xml --sifa.abstract.domain IntervalDomain -i ../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--usb--class--cdc-wdm.ko-entry_point.cil.out.i -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-f954360 [2023-04-01 01:39:58,028 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-04-01 01:39:58,029 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-04-01 01:39:58,054 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-04-01 01:39:58,055 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-04-01 01:39:58,055 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-04-01 01:39:58,056 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-04-01 01:39:58,060 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-04-01 01:39:58,062 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-04-01 01:39:58,065 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-04-01 01:39:58,066 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-04-01 01:39:58,067 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-04-01 01:39:58,067 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-04-01 01:39:58,069 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-04-01 01:39:58,070 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-04-01 01:39:58,072 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-04-01 01:39:58,072 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-04-01 01:39:58,073 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-04-01 01:39:58,074 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-04-01 01:39:58,082 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-04-01 01:39:58,083 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-04-01 01:39:58,084 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-04-01 01:39:58,084 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-04-01 01:39:58,085 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-04-01 01:39:58,090 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-04-01 01:39:58,090 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-04-01 01:39:58,090 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-04-01 01:39:58,090 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-04-01 01:39:58,091 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-04-01 01:39:58,091 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-04-01 01:39:58,091 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-04-01 01:39:58,092 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-04-01 01:39:58,092 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-04-01 01:39:58,092 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-04-01 01:39:58,093 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-04-01 01:39:58,093 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-04-01 01:39:58,093 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-04-01 01:39:58,094 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-04-01 01:39:58,094 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-04-01 01:39:58,094 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-04-01 01:39:58,095 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-04-01 01:39:58,097 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/taipan/svcomp-Reach-32bit-Taipan_Default.epf [2023-04-01 01:39:58,119 INFO L113 SettingsManager]: Loading preferences was successful [2023-04-01 01:39:58,119 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-04-01 01:39:58,120 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-04-01 01:39:58,120 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-04-01 01:39:58,120 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-04-01 01:39:58,120 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-04-01 01:39:58,121 INFO L138 SettingsManager]: * User list type=DISABLED [2023-04-01 01:39:58,121 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-04-01 01:39:58,121 INFO L138 SettingsManager]: * Explicit value domain=true [2023-04-01 01:39:58,121 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-04-01 01:39:58,121 INFO L138 SettingsManager]: * Octagon Domain=false [2023-04-01 01:39:58,121 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2023-04-01 01:39:58,122 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-04-01 01:39:58,122 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-04-01 01:39:58,122 INFO L138 SettingsManager]: * Interval Domain=false [2023-04-01 01:39:58,122 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-04-01 01:39:58,122 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-04-01 01:39:58,122 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2023-04-01 01:39:58,122 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-04-01 01:39:58,122 INFO L138 SettingsManager]: * sizeof long=4 [2023-04-01 01:39:58,122 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-04-01 01:39:58,123 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-04-01 01:39:58,123 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-04-01 01:39:58,123 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-04-01 01:39:58,123 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-04-01 01:39:58,123 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-04-01 01:39:58,123 INFO L138 SettingsManager]: * sizeof long double=12 [2023-04-01 01:39:58,123 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-04-01 01:39:58,123 INFO L138 SettingsManager]: * Use constant arrays=true [2023-04-01 01:39:58,123 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-04-01 01:39:58,123 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-04-01 01:39:58,124 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-04-01 01:39:58,124 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-04-01 01:39:58,124 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-04-01 01:39:58,124 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2023-04-01 01:39:58,124 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-04-01 01:39:58,124 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-04-01 01:39:58,124 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-04-01 01:39:58,124 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-04-01 01:39:58,124 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-04-01 01:39:58,124 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-04-01 01:39:58,124 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Abstract Domain -> IntervalDomain [2023-04-01 01:39:58,282 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-04-01 01:39:58,300 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-04-01 01:39:58,302 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-04-01 01:39:58,302 INFO L271 PluginConnector]: Initializing CDTParser... [2023-04-01 01:39:58,303 INFO L275 PluginConnector]: CDTParser initialized [2023-04-01 01:39:58,303 INFO L432 ainManager$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--usb--class--cdc-wdm.ko-entry_point.cil.out.i [2023-04-01 01:39:59,241 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-04-01 01:39:59,569 INFO L351 CDTParser]: Found 1 translation units. [2023-04-01 01:39:59,570 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--usb--class--cdc-wdm.ko-entry_point.cil.out.i [2023-04-01 01:39:59,599 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/71e8272f2/f2e52e68bba549058b3a098102ce3dae/FLAG33c3a20f6 [2023-04-01 01:39:59,611 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/71e8272f2/f2e52e68bba549058b3a098102ce3dae [2023-04-01 01:39:59,613 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-04-01 01:39:59,614 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2023-04-01 01:39:59,616 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-04-01 01:39:59,616 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-04-01 01:39:59,618 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-04-01 01:39:59,619 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.04 01:39:59" (1/1) ... [2023-04-01 01:39:59,620 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@35487942 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 01:39:59, skipping insertion in model container [2023-04-01 01:39:59,620 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.04 01:39:59" (1/1) ... [2023-04-01 01:39:59,624 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-04-01 01:39:59,718 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-04-01 01:40:00,721 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--usb--class--cdc-wdm.ko-entry_point.cil.out.i[185536,185549] [2023-04-01 01:40:00,838 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-04-01 01:40:00,867 INFO L203 MainTranslator]: Completed pre-run [2023-04-01 01:40:00,996 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--usb--class--cdc-wdm.ko-entry_point.cil.out.i[185536,185549] [2023-04-01 01:40:01,008 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-04-01 01:40:01,063 INFO L208 MainTranslator]: Completed translation [2023-04-01 01:40:01,064 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 01:40:01 WrapperNode [2023-04-01 01:40:01,064 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-04-01 01:40:01,065 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-04-01 01:40:01,065 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-04-01 01:40:01,065 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-04-01 01:40:01,072 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 01:40:01" (1/1) ... [2023-04-01 01:40:01,072 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 01:40:01" (1/1) ... [2023-04-01 01:40:01,130 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 01:40:01" (1/1) ... [2023-04-01 01:40:01,131 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 01:40:01" (1/1) ... [2023-04-01 01:40:01,210 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 01:40:01" (1/1) ... [2023-04-01 01:40:01,234 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 01:40:01" (1/1) ... [2023-04-01 01:40:01,248 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 01:40:01" (1/1) ... [2023-04-01 01:40:01,271 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 01:40:01" (1/1) ... [2023-04-01 01:40:01,294 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-04-01 01:40:01,295 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-04-01 01:40:01,295 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-04-01 01:40:01,295 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-04-01 01:40:01,296 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 01:40:01" (1/1) ... [2023-04-01 01:40:01,302 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-04-01 01:40:01,309 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-01 01:40:01,322 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-04-01 01:40:01,337 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-04-01 01:40:01,356 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2023-04-01 01:40:01,357 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-04-01 01:40:01,357 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~$Pointer$~TO~VOID [2023-04-01 01:40:01,357 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~int~TO~int [2023-04-01 01:40:01,359 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2023-04-01 01:40:01,359 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2023-04-01 01:40:01,359 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_bit [2023-04-01 01:40:01,359 INFO L138 BoogieDeclarations]: Found implementation of procedure test_and_set_bit [2023-04-01 01:40:01,359 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2023-04-01 01:40:01,359 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2023-04-01 01:40:01,360 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add [2023-04-01 01:40:01,360 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-04-01 01:40:01,360 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2023-04-01 01:40:01,360 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2023-04-01 01:40:01,360 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_zalloc [2023-04-01 01:40:01,360 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_memset [2023-04-01 01:40:01,360 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2023-04-01 01:40:01,360 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_ulong [2023-04-01 01:40:01,360 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2023-04-01 01:40:01,360 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2023-04-01 01:40:01,360 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2023-04-01 01:40:01,360 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2023-04-01 01:40:01,360 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock_irq [2023-04-01 01:40:01,360 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2023-04-01 01:40:01,361 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irq [2023-04-01 01:40:01,361 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2023-04-01 01:40:01,361 INFO L138 BoogieDeclarations]: Found implementation of procedure queue_work [2023-04-01 01:40:01,361 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule_work [2023-04-01 01:40:01,361 INFO L138 BoogieDeclarations]: Found implementation of procedure __kmalloc [2023-04-01 01:40:01,361 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2023-04-01 01:40:01,361 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2023-04-01 01:40:01,361 INFO L138 BoogieDeclarations]: Found implementation of procedure kobject_name [2023-04-01 01:40:01,361 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_from_user [2023-04-01 01:40:01,361 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_to_user [2023-04-01 01:40:01,361 INFO L138 BoogieDeclarations]: Found implementation of procedure iminor [2023-04-01 01:40:01,361 INFO L138 BoogieDeclarations]: Found implementation of procedure poll_wait [2023-04-01 01:40:01,362 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_dir_in [2023-04-01 01:40:01,362 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_xfer_int [2023-04-01 01:40:01,362 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_is_int_in [2023-04-01 01:40:01,362 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_maxp [2023-04-01 01:40:01,362 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_name [2023-04-01 01:40:01,362 INFO L138 BoogieDeclarations]: Found implementation of procedure pm_runtime_mark_last_busy [2023-04-01 01:40:01,362 INFO L138 BoogieDeclarations]: Found implementation of procedure interface_to_usbdev [2023-04-01 01:40:01,362 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_mark_last_busy [2023-04-01 01:40:01,362 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_fill_control_urb [2023-04-01 01:40:01,363 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_fill_int_urb [2023-04-01 01:40:01,363 INFO L138 BoogieDeclarations]: Found implementation of procedure __create_pipe [2023-04-01 01:40:01,363 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_translate_errors [2023-04-01 01:40:01,363 INFO L138 BoogieDeclarations]: Found implementation of procedure wdm_find_device [2023-04-01 01:40:01,363 INFO L138 BoogieDeclarations]: Found implementation of procedure wdm_find_device_by_minor [2023-04-01 01:40:01,363 INFO L138 BoogieDeclarations]: Found implementation of procedure wdm_out_callback [2023-04-01 01:40:01,364 INFO L138 BoogieDeclarations]: Found implementation of procedure wdm_in_callback [2023-04-01 01:40:01,364 INFO L138 BoogieDeclarations]: Found implementation of procedure wdm_int_callback [2023-04-01 01:40:01,364 INFO L138 BoogieDeclarations]: Found implementation of procedure kill_urbs [2023-04-01 01:40:01,364 INFO L138 BoogieDeclarations]: Found implementation of procedure free_urbs [2023-04-01 01:40:01,364 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2023-04-01 01:40:01,365 INFO L138 BoogieDeclarations]: Found implementation of procedure wdm_write [2023-04-01 01:40:01,365 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_wdm_read_flag [2023-04-01 01:40:01,365 INFO L138 BoogieDeclarations]: Found implementation of procedure wdm_read [2023-04-01 01:40:01,365 INFO L138 BoogieDeclarations]: Found implementation of procedure wdm_flush [2023-04-01 01:40:01,365 INFO L138 BoogieDeclarations]: Found implementation of procedure wdm_poll [2023-04-01 01:40:01,365 INFO L138 BoogieDeclarations]: Found implementation of procedure wdm_open [2023-04-01 01:40:01,365 INFO L138 BoogieDeclarations]: Found implementation of procedure wdm_release [2023-04-01 01:40:01,365 INFO L138 BoogieDeclarations]: Found implementation of procedure wdm_ioctl [2023-04-01 01:40:01,365 INFO L138 BoogieDeclarations]: Found implementation of procedure wdm_rxwork [2023-04-01 01:40:01,365 INFO L138 BoogieDeclarations]: Found implementation of procedure wdm_create [2023-04-01 01:40:01,365 INFO L138 BoogieDeclarations]: Found implementation of procedure wdm_manage_power [2023-04-01 01:40:01,365 INFO L138 BoogieDeclarations]: Found implementation of procedure wdm_probe [2023-04-01 01:40:01,365 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_cdc_wdm_register [2023-04-01 01:40:01,366 INFO L138 BoogieDeclarations]: Found implementation of procedure wdm_disconnect [2023-04-01 01:40:01,366 INFO L138 BoogieDeclarations]: Found implementation of procedure wdm_suspend [2023-04-01 01:40:01,366 INFO L138 BoogieDeclarations]: Found implementation of procedure recover_from_urb_loss [2023-04-01 01:40:01,366 INFO L138 BoogieDeclarations]: Found implementation of procedure wdm_resume [2023-04-01 01:40:01,366 INFO L138 BoogieDeclarations]: Found implementation of procedure wdm_pre_reset [2023-04-01 01:40:01,366 INFO L138 BoogieDeclarations]: Found implementation of procedure wdm_post_reset [2023-04-01 01:40:01,366 INFO L138 BoogieDeclarations]: Found implementation of procedure wdm_driver_init [2023-04-01 01:40:01,366 INFO L138 BoogieDeclarations]: Found implementation of procedure wdm_driver_exit [2023-04-01 01:40:01,366 INFO L138 BoogieDeclarations]: Found implementation of procedure call_and_disable_all_1 [2023-04-01 01:40:01,366 INFO L138 BoogieDeclarations]: Found implementation of procedure invoke_work_1 [2023-04-01 01:40:01,366 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_driver_2 [2023-04-01 01:40:01,366 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_file_operations_3 [2023-04-01 01:40:01,367 INFO L138 BoogieDeclarations]: Found implementation of procedure call_and_disable_work_1 [2023-04-01 01:40:01,367 INFO L138 BoogieDeclarations]: Found implementation of procedure disable_work_1 [2023-04-01 01:40:01,368 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_work_1 [2023-04-01 01:40:01,368 INFO L138 BoogieDeclarations]: Found implementation of procedure work_init_1 [2023-04-01 01:40:01,368 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2023-04-01 01:40:01,368 INFO L138 BoogieDeclarations]: Found implementation of procedure ERR_PTR [2023-04-01 01:40:01,368 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_queue_work_on_5 [2023-04-01 01:40:01,368 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_queue_delayed_work_on_6 [2023-04-01 01:40:01,368 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_queue_work_on_7 [2023-04-01 01:40:01,368 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_flush_workqueue_8 [2023-04-01 01:40:01,369 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_queue_delayed_work_on_9 [2023-04-01 01:40:01,369 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_10 [2023-04-01 01:40:01,369 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_11 [2023-04-01 01:40:01,369 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_12 [2023-04-01 01:40:01,369 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_13 [2023-04-01 01:40:01,369 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_14 [2023-04-01 01:40:01,425 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_trylock_15 [2023-04-01 01:40:01,425 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_16 [2023-04-01 01:40:01,425 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_interruptible_17 [2023-04-01 01:40:01,425 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_18 [2023-04-01 01:40:01,425 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_19 [2023-04-01 01:40:01,425 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_interruptible_20 [2023-04-01 01:40:01,425 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_21 [2023-04-01 01:40:01,425 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_22 [2023-04-01 01:40:01,425 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_23 [2023-04-01 01:40:01,425 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_24 [2023-04-01 01:40:01,425 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_25 [2023-04-01 01:40:01,425 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_26 [2023-04-01 01:40:01,425 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_27 [2023-04-01 01:40:01,425 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_28 [2023-04-01 01:40:01,426 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_29 [2023-04-01 01:40:01,426 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_30 [2023-04-01 01:40:01,426 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_31 [2023-04-01 01:40:01,426 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_32 [2023-04-01 01:40:01,426 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_cancel_work_sync_33 [2023-04-01 01:40:01,426 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_34 [2023-04-01 01:40:01,426 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_35 [2023-04-01 01:40:01,426 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_36 [2023-04-01 01:40:01,426 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_37 [2023-04-01 01:40:01,426 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_38 [2023-04-01 01:40:01,426 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_cancel_work_sync_39 [2023-04-01 01:40:01,426 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_40 [2023-04-01 01:40:01,426 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_41 [2023-04-01 01:40:01,426 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_42 [2023-04-01 01:40:01,427 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_43 [2023-04-01 01:40:01,427 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_cancel_work_sync_44 [2023-04-01 01:40:01,427 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_45 [2023-04-01 01:40:01,427 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_46 [2023-04-01 01:40:01,427 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_register_driver_47 [2023-04-01 01:40:01,427 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_deregister_48 [2023-04-01 01:40:01,427 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2023-04-01 01:40:01,427 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int_negative [2023-04-01 01:40:01,427 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2023-04-01 01:40:01,427 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_err_ptr [2023-04-01 01:40:01,427 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_ptr_err [2023-04-01 01:40:01,427 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err_or_null [2023-04-01 01:40:01,427 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_interruptible_i_mutex_of_inode [2023-04-01 01:40:01,427 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_killable_i_mutex_of_inode [2023-04-01 01:40:01,427 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_i_mutex_of_inode [2023-04-01 01:40:01,427 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_trylock_i_mutex_of_inode [2023-04-01 01:40:01,427 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_dec_and_mutex_lock_i_mutex_of_inode [2023-04-01 01:40:01,428 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_is_locked_i_mutex_of_inode [2023-04-01 01:40:01,428 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_i_mutex_of_inode [2023-04-01 01:40:01,428 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_lock_device_i_mutex_of_inode [2023-04-01 01:40:01,428 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_trylock_device_i_mutex_of_inode [2023-04-01 01:40:01,428 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_lock_device_for_reset_i_mutex_of_inode [2023-04-01 01:40:01,428 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_unlock_device_i_mutex_of_inode [2023-04-01 01:40:01,428 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_interruptible_lock [2023-04-01 01:40:01,428 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_killable_lock [2023-04-01 01:40:01,428 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_lock [2023-04-01 01:40:01,428 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_trylock_lock [2023-04-01 01:40:01,428 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_dec_and_mutex_lock_lock [2023-04-01 01:40:01,428 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_is_locked_lock [2023-04-01 01:40:01,428 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_lock [2023-04-01 01:40:01,428 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_lock_device_lock [2023-04-01 01:40:01,428 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_trylock_device_lock [2023-04-01 01:40:01,428 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_lock_device_for_reset_lock [2023-04-01 01:40:01,428 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_unlock_device_lock [2023-04-01 01:40:01,429 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_interruptible_mutex_of_device [2023-04-01 01:40:01,429 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_killable_mutex_of_device [2023-04-01 01:40:01,429 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_mutex_of_device [2023-04-01 01:40:01,429 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_trylock_mutex_of_device [2023-04-01 01:40:01,429 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_dec_and_mutex_lock_mutex_of_device [2023-04-01 01:40:01,429 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_is_locked_mutex_of_device [2023-04-01 01:40:01,429 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_mutex_of_device [2023-04-01 01:40:01,429 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_lock_device_mutex_of_device [2023-04-01 01:40:01,429 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_trylock_device_mutex_of_device [2023-04-01 01:40:01,429 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_lock_device_for_reset_mutex_of_device [2023-04-01 01:40:01,429 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_unlock_device_mutex_of_device [2023-04-01 01:40:01,429 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_interruptible_rlock_of_wdm_device [2023-04-01 01:40:01,429 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_killable_rlock_of_wdm_device [2023-04-01 01:40:01,429 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_rlock_of_wdm_device [2023-04-01 01:40:01,429 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_trylock_rlock_of_wdm_device [2023-04-01 01:40:01,429 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_dec_and_mutex_lock_rlock_of_wdm_device [2023-04-01 01:40:01,429 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_is_locked_rlock_of_wdm_device [2023-04-01 01:40:01,429 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_rlock_of_wdm_device [2023-04-01 01:40:01,430 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_lock_device_rlock_of_wdm_device [2023-04-01 01:40:01,430 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_trylock_device_rlock_of_wdm_device [2023-04-01 01:40:01,430 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_lock_device_for_reset_rlock_of_wdm_device [2023-04-01 01:40:01,430 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_unlock_device_rlock_of_wdm_device [2023-04-01 01:40:01,430 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_interruptible_wdm_mutex [2023-04-01 01:40:01,430 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_killable_wdm_mutex [2023-04-01 01:40:01,430 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_wdm_mutex [2023-04-01 01:40:01,430 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_trylock_wdm_mutex [2023-04-01 01:40:01,430 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_dec_and_mutex_lock_wdm_mutex [2023-04-01 01:40:01,430 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_is_locked_wdm_mutex [2023-04-01 01:40:01,430 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_wdm_mutex [2023-04-01 01:40:01,430 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_lock_device_wdm_mutex [2023-04-01 01:40:01,430 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_trylock_device_wdm_mutex [2023-04-01 01:40:01,430 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_lock_device_for_reset_wdm_mutex [2023-04-01 01:40:01,430 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_unlock_device_wdm_mutex [2023-04-01 01:40:01,430 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_interruptible_wlock_of_wdm_device [2023-04-01 01:40:01,430 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_killable_wlock_of_wdm_device [2023-04-01 01:40:01,430 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_wlock_of_wdm_device [2023-04-01 01:40:01,431 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_trylock_wlock_of_wdm_device [2023-04-01 01:40:01,431 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_dec_and_mutex_lock_wlock_of_wdm_device [2023-04-01 01:40:01,431 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_is_locked_wlock_of_wdm_device [2023-04-01 01:40:01,431 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_wlock_of_wdm_device [2023-04-01 01:40:01,431 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_lock_device_wlock_of_wdm_device [2023-04-01 01:40:01,431 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_trylock_device_wlock_of_wdm_device [2023-04-01 01:40:01,431 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_lock_device_for_reset_wlock_of_wdm_device [2023-04-01 01:40:01,431 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_unlock_device_wlock_of_wdm_device [2023-04-01 01:40:01,431 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2023-04-01 01:40:01,431 INFO L138 BoogieDeclarations]: Found implementation of procedure __copy_from_user_overflow [2023-04-01 01:40:01,431 INFO L138 BoogieDeclarations]: Found implementation of procedure __copy_to_user_overflow [2023-04-01 01:40:01,431 INFO L138 BoogieDeclarations]: Found implementation of procedure __dynamic_dev_dbg [2023-04-01 01:40:01,431 INFO L138 BoogieDeclarations]: Found implementation of procedure __dynamic_pr_debug [2023-04-01 01:40:01,431 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_waitqueue_head [2023-04-01 01:40:01,431 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_work [2023-04-01 01:40:01,431 INFO L138 BoogieDeclarations]: Found implementation of procedure __list_add [2023-04-01 01:40:01,431 INFO L138 BoogieDeclarations]: Found implementation of procedure __might_fault [2023-04-01 01:40:01,431 INFO L138 BoogieDeclarations]: Found implementation of procedure __might_sleep [2023-04-01 01:40:01,431 INFO L138 BoogieDeclarations]: Found implementation of procedure __mutex_init [2023-04-01 01:40:01,432 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2023-04-01 01:40:01,432 INFO L138 BoogieDeclarations]: Found implementation of procedure __wake_up [2023-04-01 01:40:01,432 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_from_user [2023-04-01 01:40:01,432 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_to_user [2023-04-01 01:40:01,432 INFO L138 BoogieDeclarations]: Found implementation of procedure _dev_info [2023-04-01 01:40:01,432 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock [2023-04-01 01:40:01,432 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock_irq [2023-04-01 01:40:01,432 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock_irqsave [2023-04-01 01:40:01,432 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_unlock [2023-04-01 01:40:01,432 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_unlock_irq [2023-04-01 01:40:01,432 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_unlock_irqrestore [2023-04-01 01:40:01,432 INFO L138 BoogieDeclarations]: Found implementation of procedure cancel_work_sync [2023-04-01 01:40:01,432 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_err [2023-04-01 01:40:01,432 INFO L138 BoogieDeclarations]: Found implementation of procedure finish_wait [2023-04-01 01:40:01,432 INFO L138 BoogieDeclarations]: Found implementation of procedure flush_workqueue [2023-04-01 01:40:01,432 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize [2023-04-01 01:40:01,432 INFO L138 BoogieDeclarations]: Found implementation of procedure list_del [2023-04-01 01:40:01,432 INFO L138 BoogieDeclarations]: Found implementation of procedure lockdep_init_map [2023-04-01 01:40:01,432 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock [2023-04-01 01:40:01,433 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_interruptible [2023-04-01 01:40:01,433 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_trylock [2023-04-01 01:40:01,433 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2023-04-01 01:40:01,433 INFO L138 BoogieDeclarations]: Found implementation of procedure noop_llseek [2023-04-01 01:40:01,433 INFO L138 BoogieDeclarations]: Found implementation of procedure prepare_to_wait_event [2023-04-01 01:40:01,433 INFO L138 BoogieDeclarations]: Found implementation of procedure queue_delayed_work_on [2023-04-01 01:40:01,433 INFO L138 BoogieDeclarations]: Found implementation of procedure queue_work_on [2023-04-01 01:40:01,433 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule [2023-04-01 01:40:01,433 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_alloc_urb [2023-04-01 01:40:01,433 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_autopm_get_interface [2023-04-01 01:40:01,433 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_autopm_put_interface [2023-04-01 01:40:01,433 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_deregister [2023-04-01 01:40:01,433 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_deregister_dev [2023-04-01 01:40:01,433 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_free_urb [2023-04-01 01:40:01,433 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_kill_urb [2023-04-01 01:40:01,433 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_register_dev [2023-04-01 01:40:01,434 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_register_driver [2023-04-01 01:40:01,436 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_submit_urb [2023-04-01 01:40:01,437 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2023-04-01 01:40:01,437 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2023-04-01 01:40:01,437 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2023-04-01 01:40:01,437 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memmove [2023-04-01 01:40:01,437 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2023-04-01 01:40:01,437 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2023-04-01 01:40:01,437 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_perror_fail [2023-04-01 01:40:01,437 INFO L130 BoogieDeclarations]: Found specification of procedure __assert [2023-04-01 01:40:01,437 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2023-04-01 01:40:01,437 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-04-01 01:40:01,437 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2023-04-01 01:40:01,437 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2023-04-01 01:40:01,437 INFO L130 BoogieDeclarations]: Found specification of procedure clear_bit [2023-04-01 01:40:01,437 INFO L130 BoogieDeclarations]: Found specification of procedure test_and_set_bit [2023-04-01 01:40:01,438 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2023-04-01 01:40:01,438 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-04-01 01:40:01,438 INFO L130 BoogieDeclarations]: Found specification of procedure __dynamic_pr_debug [2023-04-01 01:40:01,438 INFO L130 BoogieDeclarations]: Found specification of procedure __dynamic_dev_dbg [2023-04-01 01:40:01,438 INFO L130 BoogieDeclarations]: Found specification of procedure __might_sleep [2023-04-01 01:40:01,438 INFO L130 BoogieDeclarations]: Found specification of procedure __might_fault [2023-04-01 01:40:01,438 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_err_ptr [2023-04-01 01:40:01,438 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2023-04-01 01:40:01,438 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-04-01 01:40:01,438 INFO L130 BoogieDeclarations]: Found specification of procedure __list_add [2023-04-01 01:40:01,438 INFO L130 BoogieDeclarations]: Found specification of procedure list_add [2023-04-01 01:40:01,438 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-04-01 01:40:01,438 INFO L130 BoogieDeclarations]: Found specification of procedure list_del [2023-04-01 01:40:01,438 INFO L130 BoogieDeclarations]: Found specification of procedure memset [2023-04-01 01:40:01,438 INFO L130 BoogieDeclarations]: Found specification of procedure memmove [2023-04-01 01:40:01,438 INFO L130 BoogieDeclarations]: Found specification of procedure ERR_PTR [2023-04-01 01:40:01,438 INFO L130 BoogieDeclarations]: Found specification of procedure lockdep_init_map [2023-04-01 01:40:01,438 INFO L130 BoogieDeclarations]: Found specification of procedure __mutex_init [2023-04-01 01:40:01,438 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_trylock [2023-04-01 01:40:01,439 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_trylock_15 [2023-04-01 01:40:01,439 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2023-04-01 01:40:01,439 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_11 [2023-04-01 01:40:01,439 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_12 [2023-04-01 01:40:01,439 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_16 [2023-04-01 01:40:01,439 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_18 [2023-04-01 01:40:01,439 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_19 [2023-04-01 01:40:01,439 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_21 [2023-04-01 01:40:01,439 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_24 [2023-04-01 01:40:01,439 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_25 [2023-04-01 01:40:01,439 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_28 [2023-04-01 01:40:01,439 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_29 [2023-04-01 01:40:01,439 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_34 [2023-04-01 01:40:01,439 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_35 [2023-04-01 01:40:01,439 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_36 [2023-04-01 01:40:01,439 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_40 [2023-04-01 01:40:01,439 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_41 [2023-04-01 01:40:01,439 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_45 [2023-04-01 01:40:01,439 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_46 [2023-04-01 01:40:01,440 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2023-04-01 01:40:01,440 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2023-04-01 01:40:01,440 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2023-04-01 01:40:01,440 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_ulong [2023-04-01 01:40:01,440 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-04-01 01:40:01,440 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2023-04-01 01:40:01,440 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-04-01 01:40:01,440 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2023-04-01 01:40:01,440 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2023-04-01 01:40:01,440 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_zalloc [2023-04-01 01:40:01,440 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_memset [2023-04-01 01:40:01,440 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2023-04-01 01:40:01,440 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2023-04-01 01:40:01,440 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_ulong [2023-04-01 01:40:01,440 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2023-04-01 01:40:01,440 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_interruptible [2023-04-01 01:40:01,440 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_interruptible_17 [2023-04-01 01:40:01,440 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_interruptible_20 [2023-04-01 01:40:01,440 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock [2023-04-01 01:40:01,440 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_10 [2023-04-01 01:40:01,441 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_13 [2023-04-01 01:40:01,441 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_14 [2023-04-01 01:40:01,441 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_22 [2023-04-01 01:40:01,441 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_23 [2023-04-01 01:40:01,441 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_26 [2023-04-01 01:40:01,441 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_27 [2023-04-01 01:40:01,441 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_30 [2023-04-01 01:40:01,441 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_31 [2023-04-01 01:40:01,441 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_32 [2023-04-01 01:40:01,441 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_37 [2023-04-01 01:40:01,441 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_38 [2023-04-01 01:40:01,441 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_42 [2023-04-01 01:40:01,441 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_43 [2023-04-01 01:40:01,441 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_i_mutex_of_inode [2023-04-01 01:40:01,441 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_i_mutex_of_inode [2023-04-01 01:40:01,441 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_lock [2023-04-01 01:40:01,441 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_lock [2023-04-01 01:40:01,441 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_mutex_of_device [2023-04-01 01:40:01,441 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_trylock_mutex_of_device [2023-04-01 01:40:01,442 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_mutex_of_device [2023-04-01 01:40:01,442 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_interruptible_rlock_of_wdm_device [2023-04-01 01:40:01,442 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_rlock_of_wdm_device [2023-04-01 01:40:01,442 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_rlock_of_wdm_device [2023-04-01 01:40:01,442 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_wdm_mutex [2023-04-01 01:40:01,442 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_wdm_mutex [2023-04-01 01:40:01,442 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_interruptible_wlock_of_wdm_device [2023-04-01 01:40:01,442 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_wlock_of_wdm_device [2023-04-01 01:40:01,442 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_wlock_of_wdm_device [2023-04-01 01:40:01,442 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2023-04-01 01:40:01,442 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock [2023-04-01 01:40:01,442 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock_irq [2023-04-01 01:40:01,442 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock_irqsave [2023-04-01 01:40:01,442 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_unlock [2023-04-01 01:40:01,442 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_unlock_irq [2023-04-01 01:40:01,442 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_unlock_irqrestore [2023-04-01 01:40:01,442 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2023-04-01 01:40:01,442 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2023-04-01 01:40:01,442 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock_irq [2023-04-01 01:40:01,443 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2023-04-01 01:40:01,443 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irq [2023-04-01 01:40:01,443 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2023-04-01 01:40:01,443 INFO L130 BoogieDeclarations]: Found specification of procedure __init_waitqueue_head [2023-04-01 01:40:01,443 INFO L130 BoogieDeclarations]: Found specification of procedure __wake_up [2023-04-01 01:40:01,443 INFO L130 BoogieDeclarations]: Found specification of procedure prepare_to_wait_event [2023-04-01 01:40:01,443 INFO L130 BoogieDeclarations]: Found specification of procedure finish_wait [2023-04-01 01:40:01,443 INFO L130 BoogieDeclarations]: Found specification of procedure __init_work [2023-04-01 01:40:01,443 INFO L130 BoogieDeclarations]: Found specification of procedure queue_work_on [2023-04-01 01:40:01,443 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_queue_work_on_5 [2023-04-01 01:40:01,443 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_queue_work_on_7 [2023-04-01 01:40:01,443 INFO L130 BoogieDeclarations]: Found specification of procedure queue_delayed_work_on [2023-04-01 01:40:01,443 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_queue_delayed_work_on_6 [2023-04-01 01:40:01,443 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_queue_delayed_work_on_9 [2023-04-01 01:40:01,443 INFO L130 BoogieDeclarations]: Found specification of procedure flush_workqueue [2023-04-01 01:40:01,443 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_flush_workqueue_8 [2023-04-01 01:40:01,443 INFO L130 BoogieDeclarations]: Found specification of procedure cancel_work_sync [2023-04-01 01:40:01,443 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_cancel_work_sync_33 [2023-04-01 01:40:01,443 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_cancel_work_sync_39 [2023-04-01 01:40:01,444 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_cancel_work_sync_44 [2023-04-01 01:40:01,444 INFO L130 BoogieDeclarations]: Found specification of procedure queue_work [2023-04-01 01:40:01,444 INFO L130 BoogieDeclarations]: Found specification of procedure schedule_work [2023-04-01 01:40:01,444 INFO L130 BoogieDeclarations]: Found specification of procedure schedule [2023-04-01 01:40:01,444 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2023-04-01 01:40:01,444 INFO L130 BoogieDeclarations]: Found specification of procedure __kmalloc [2023-04-01 01:40:01,444 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2023-04-01 01:40:01,444 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2023-04-01 01:40:01,444 INFO L130 BoogieDeclarations]: Found specification of procedure call_and_disable_all_1 [2023-04-01 01:40:01,444 INFO L130 BoogieDeclarations]: Found specification of procedure invoke_work_1 [2023-04-01 01:40:01,444 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_driver_2 [2023-04-01 01:40:01,444 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_file_operations_3 [2023-04-01 01:40:01,444 INFO L130 BoogieDeclarations]: Found specification of procedure call_and_disable_work_1 [2023-04-01 01:40:01,444 INFO L130 BoogieDeclarations]: Found specification of procedure disable_work_1 [2023-04-01 01:40:01,444 INFO L130 BoogieDeclarations]: Found specification of procedure activate_work_1 [2023-04-01 01:40:01,444 INFO L130 BoogieDeclarations]: Found specification of procedure work_init_1 [2023-04-01 01:40:01,444 INFO L130 BoogieDeclarations]: Found specification of procedure kobject_name [2023-04-01 01:40:01,444 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_from_user [2023-04-01 01:40:01,445 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_to_user [2023-04-01 01:40:01,445 INFO L130 BoogieDeclarations]: Found specification of procedure __copy_from_user_overflow [2023-04-01 01:40:01,445 INFO L130 BoogieDeclarations]: Found specification of procedure __copy_to_user_overflow [2023-04-01 01:40:01,445 INFO L130 BoogieDeclarations]: Found specification of procedure copy_from_user [2023-04-01 01:40:01,445 INFO L130 BoogieDeclarations]: Found specification of procedure copy_to_user [2023-04-01 01:40:01,445 INFO L130 BoogieDeclarations]: Found specification of procedure iminor [2023-04-01 01:40:01,445 INFO L130 BoogieDeclarations]: Found specification of procedure noop_llseek [2023-04-01 01:40:01,445 INFO L130 BoogieDeclarations]: Found specification of procedure poll_wait [2023-04-01 01:40:01,445 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~$Pointer$~TO~VOID [2023-04-01 01:40:01,445 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_dir_in [2023-04-01 01:40:01,445 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_xfer_int [2023-04-01 01:40:01,445 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_is_int_in [2023-04-01 01:40:01,445 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_maxp [2023-04-01 01:40:01,445 INFO L130 BoogieDeclarations]: Found specification of procedure dev_name [2023-04-01 01:40:01,445 INFO L130 BoogieDeclarations]: Found specification of procedure dev_err [2023-04-01 01:40:01,445 INFO L130 BoogieDeclarations]: Found specification of procedure _dev_info [2023-04-01 01:40:01,445 INFO L130 BoogieDeclarations]: Found specification of procedure pm_runtime_mark_last_busy [2023-04-01 01:40:01,445 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-04-01 01:40:01,445 INFO L130 BoogieDeclarations]: Found specification of procedure interface_to_usbdev [2023-04-01 01:40:01,445 INFO L130 BoogieDeclarations]: Found specification of procedure usb_autopm_get_interface [2023-04-01 01:40:01,446 INFO L130 BoogieDeclarations]: Found specification of procedure usb_autopm_put_interface [2023-04-01 01:40:01,446 INFO L130 BoogieDeclarations]: Found specification of procedure usb_mark_last_busy [2023-04-01 01:40:01,446 INFO L130 BoogieDeclarations]: Found specification of procedure usb_register_driver [2023-04-01 01:40:01,446 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_register_driver_47 [2023-04-01 01:40:01,446 INFO L130 BoogieDeclarations]: Found specification of procedure usb_deregister [2023-04-01 01:40:01,446 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_deregister_48 [2023-04-01 01:40:01,446 INFO L130 BoogieDeclarations]: Found specification of procedure usb_register_dev [2023-04-01 01:40:01,446 INFO L130 BoogieDeclarations]: Found specification of procedure usb_deregister_dev [2023-04-01 01:40:01,446 INFO L130 BoogieDeclarations]: Found specification of procedure usb_fill_control_urb [2023-04-01 01:40:01,446 INFO L130 BoogieDeclarations]: Found specification of procedure usb_fill_int_urb [2023-04-01 01:40:01,446 INFO L130 BoogieDeclarations]: Found specification of procedure usb_alloc_urb [2023-04-01 01:40:01,446 INFO L130 BoogieDeclarations]: Found specification of procedure usb_free_urb [2023-04-01 01:40:01,446 INFO L130 BoogieDeclarations]: Found specification of procedure usb_submit_urb [2023-04-01 01:40:01,446 INFO L130 BoogieDeclarations]: Found specification of procedure usb_kill_urb [2023-04-01 01:40:01,446 INFO L130 BoogieDeclarations]: Found specification of procedure __create_pipe [2023-04-01 01:40:01,446 INFO L130 BoogieDeclarations]: Found specification of procedure usb_translate_errors [2023-04-01 01:40:01,446 INFO L130 BoogieDeclarations]: Found specification of procedure usb_cdc_wdm_register [2023-04-01 01:40:01,446 INFO L130 BoogieDeclarations]: Found specification of procedure wdm_find_device [2023-04-01 01:40:01,446 INFO L130 BoogieDeclarations]: Found specification of procedure wdm_find_device_by_minor [2023-04-01 01:40:01,447 INFO L130 BoogieDeclarations]: Found specification of procedure wdm_out_callback [2023-04-01 01:40:01,447 INFO L130 BoogieDeclarations]: Found specification of procedure wdm_in_callback [2023-04-01 01:40:01,447 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-04-01 01:40:01,447 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memmove [2023-04-01 01:40:01,447 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-04-01 01:40:01,447 INFO L130 BoogieDeclarations]: Found specification of procedure wdm_int_callback [2023-04-01 01:40:01,447 INFO L130 BoogieDeclarations]: Found specification of procedure kill_urbs [2023-04-01 01:40:01,447 INFO L130 BoogieDeclarations]: Found specification of procedure free_urbs [2023-04-01 01:40:01,447 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2023-04-01 01:40:01,447 INFO L130 BoogieDeclarations]: Found specification of procedure wdm_write [2023-04-01 01:40:01,447 INFO L130 BoogieDeclarations]: Found specification of procedure clear_wdm_read_flag [2023-04-01 01:40:01,447 INFO L130 BoogieDeclarations]: Found specification of procedure wdm_read [2023-04-01 01:40:01,447 INFO L130 BoogieDeclarations]: Found specification of procedure wdm_flush [2023-04-01 01:40:01,447 INFO L130 BoogieDeclarations]: Found specification of procedure wdm_poll [2023-04-01 01:40:01,447 INFO L130 BoogieDeclarations]: Found specification of procedure wdm_open [2023-04-01 01:40:01,447 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~int~TO~int [2023-04-01 01:40:01,447 INFO L130 BoogieDeclarations]: Found specification of procedure wdm_release [2023-04-01 01:40:01,447 INFO L130 BoogieDeclarations]: Found specification of procedure wdm_ioctl [2023-04-01 01:40:01,447 INFO L130 BoogieDeclarations]: Found specification of procedure wdm_rxwork [2023-04-01 01:40:01,448 INFO L130 BoogieDeclarations]: Found specification of procedure wdm_create [2023-04-01 01:40:01,448 INFO L130 BoogieDeclarations]: Found specification of procedure wdm_manage_power [2023-04-01 01:40:01,448 INFO L130 BoogieDeclarations]: Found specification of procedure wdm_probe [2023-04-01 01:40:01,448 INFO L130 BoogieDeclarations]: Found specification of procedure wdm_disconnect [2023-04-01 01:40:01,448 INFO L130 BoogieDeclarations]: Found specification of procedure wdm_suspend [2023-04-01 01:40:01,448 INFO L130 BoogieDeclarations]: Found specification of procedure recover_from_urb_loss [2023-04-01 01:40:01,448 INFO L130 BoogieDeclarations]: Found specification of procedure wdm_resume [2023-04-01 01:40:01,448 INFO L130 BoogieDeclarations]: Found specification of procedure wdm_pre_reset [2023-04-01 01:40:01,448 INFO L130 BoogieDeclarations]: Found specification of procedure wdm_post_reset [2023-04-01 01:40:01,448 INFO L130 BoogieDeclarations]: Found specification of procedure wdm_driver_init [2023-04-01 01:40:01,448 INFO L130 BoogieDeclarations]: Found specification of procedure wdm_driver_exit [2023-04-01 01:40:01,448 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize [2023-04-01 01:40:01,448 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2023-04-01 01:40:01,448 INFO L130 BoogieDeclarations]: Found specification of procedure main [2023-04-01 01:40:01,448 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2023-04-01 01:40:01,448 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int_negative [2023-04-01 01:40:01,452 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2023-04-01 01:40:01,452 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_ptr_err [2023-04-01 01:40:01,452 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err_or_null [2023-04-01 01:40:01,452 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_interruptible_i_mutex_of_inode [2023-04-01 01:40:01,452 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_killable_i_mutex_of_inode [2023-04-01 01:40:01,452 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_trylock_i_mutex_of_inode [2023-04-01 01:40:01,452 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_dec_and_mutex_lock_i_mutex_of_inode [2023-04-01 01:40:01,452 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_is_locked_i_mutex_of_inode [2023-04-01 01:40:01,452 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_lock_device_i_mutex_of_inode [2023-04-01 01:40:01,452 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_trylock_device_i_mutex_of_inode [2023-04-01 01:40:01,453 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_lock_device_for_reset_i_mutex_of_inode [2023-04-01 01:40:01,453 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_unlock_device_i_mutex_of_inode [2023-04-01 01:40:01,453 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_interruptible_lock [2023-04-01 01:40:01,453 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_killable_lock [2023-04-01 01:40:01,453 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_trylock_lock [2023-04-01 01:40:01,453 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_dec_and_mutex_lock_lock [2023-04-01 01:40:01,453 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_is_locked_lock [2023-04-01 01:40:01,453 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_lock_device_lock [2023-04-01 01:40:01,453 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_trylock_device_lock [2023-04-01 01:40:01,453 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_lock_device_for_reset_lock [2023-04-01 01:40:01,453 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_unlock_device_lock [2023-04-01 01:40:01,453 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_interruptible_mutex_of_device [2023-04-01 01:40:01,453 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_killable_mutex_of_device [2023-04-01 01:40:01,453 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_dec_and_mutex_lock_mutex_of_device [2023-04-01 01:40:01,453 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_is_locked_mutex_of_device [2023-04-01 01:40:01,453 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_lock_device_mutex_of_device [2023-04-01 01:40:01,453 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_trylock_device_mutex_of_device [2023-04-01 01:40:01,453 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_lock_device_for_reset_mutex_of_device [2023-04-01 01:40:01,453 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_unlock_device_mutex_of_device [2023-04-01 01:40:01,453 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_killable_rlock_of_wdm_device [2023-04-01 01:40:01,454 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_trylock_rlock_of_wdm_device [2023-04-01 01:40:01,454 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_dec_and_mutex_lock_rlock_of_wdm_device [2023-04-01 01:40:01,454 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_is_locked_rlock_of_wdm_device [2023-04-01 01:40:01,455 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_lock_device_rlock_of_wdm_device [2023-04-01 01:40:01,455 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_trylock_device_rlock_of_wdm_device [2023-04-01 01:40:01,455 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_lock_device_for_reset_rlock_of_wdm_device [2023-04-01 01:40:01,460 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_unlock_device_rlock_of_wdm_device [2023-04-01 01:40:01,460 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_interruptible_wdm_mutex [2023-04-01 01:40:01,461 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_killable_wdm_mutex [2023-04-01 01:40:01,461 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_trylock_wdm_mutex [2023-04-01 01:40:01,461 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_dec_and_mutex_lock_wdm_mutex [2023-04-01 01:40:01,461 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_is_locked_wdm_mutex [2023-04-01 01:40:01,461 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_lock_device_wdm_mutex [2023-04-01 01:40:01,461 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_trylock_device_wdm_mutex [2023-04-01 01:40:01,461 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_lock_device_for_reset_wdm_mutex [2023-04-01 01:40:01,461 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_unlock_device_wdm_mutex [2023-04-01 01:40:01,461 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_killable_wlock_of_wdm_device [2023-04-01 01:40:01,461 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_trylock_wlock_of_wdm_device [2023-04-01 01:40:01,461 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_dec_and_mutex_lock_wlock_of_wdm_device [2023-04-01 01:40:01,461 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_is_locked_wlock_of_wdm_device [2023-04-01 01:40:01,461 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_lock_device_wlock_of_wdm_device [2023-04-01 01:40:01,461 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_trylock_device_wlock_of_wdm_device [2023-04-01 01:40:01,461 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_lock_device_for_reset_wlock_of_wdm_device [2023-04-01 01:40:01,461 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_unlock_device_wlock_of_wdm_device [2023-04-01 01:40:01,461 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_bool [2023-04-01 01:40:01,461 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_long [2023-04-01 01:40:01,462 INFO L130 BoogieDeclarations]: Found specification of procedure free [2023-04-01 01:40:01,462 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2023-04-01 01:40:01,462 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-04-01 01:40:01,462 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2023-04-01 01:40:01,462 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2023-04-01 01:40:01,462 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-04-01 01:40:01,462 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2023-04-01 01:40:01,462 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2023-04-01 01:40:01,462 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2023-04-01 01:40:01,889 INFO L236 CfgBuilder]: Building ICFG [2023-04-01 01:40:01,894 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-04-01 01:40:01,973 INFO L771 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2023-04-01 01:40:05,457 INFO L277 CfgBuilder]: Performing block encoding [2023-04-01 01:40:05,932 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-04-01 01:40:05,932 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-04-01 01:40:05,937 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.04 01:40:05 BoogieIcfgContainer [2023-04-01 01:40:05,937 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-04-01 01:40:05,939 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-04-01 01:40:05,939 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-04-01 01:40:05,941 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-04-01 01:40:05,942 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 01.04 01:39:59" (1/3) ... [2023-04-01 01:40:05,942 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@24573dab and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.04 01:40:05, skipping insertion in model container [2023-04-01 01:40:05,942 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 01:40:01" (2/3) ... [2023-04-01 01:40:05,942 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@24573dab and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.04 01:40:05, skipping insertion in model container [2023-04-01 01:40:05,942 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.04 01:40:05" (3/3) ... [2023-04-01 01:40:05,943 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-4.2-rc1.tar.xz-32_7a-drivers--usb--class--cdc-wdm.ko-entry_point.cil.out.i [2023-04-01 01:40:05,956 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-04-01 01:40:05,956 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-04-01 01:40:06,019 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-04-01 01:40:06,024 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;@5cf7dda0, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-04-01 01:40:06,024 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-04-01 01:40:06,031 INFO L276 IsEmpty]: Start isEmpty. Operand has 1651 states, 879 states have (on average 1.2502844141069398) internal successors, (1099), 931 states have internal predecessors, (1099), 525 states have call successors, (525), 172 states have call predecessors, (525), 171 states have return successors, (519), 516 states have call predecessors, (519), 519 states have call successors, (519) [2023-04-01 01:40:06,043 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 199 [2023-04-01 01:40:06,044 INFO L187 NwaCegarLoop]: Found error trace [2023-04-01 01:40:06,044 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 7, 7, 7, 7, 7, 7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-01 01:40:06,045 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-01 01:40:06,048 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-01 01:40:06,048 INFO L85 PathProgramCache]: Analyzing trace with hash 769597154, now seen corresponding path program 1 times [2023-04-01 01:40:06,054 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-01 01:40:06,055 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1948113948] [2023-04-01 01:40:06,055 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-01 01:40:06,055 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-01 01:40:06,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 01:40:06,814 INFO L134 CoverageAnalysis]: Checked inductivity of 462 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 462 trivial. 0 not checked. [2023-04-01 01:40:06,814 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-01 01:40:06,814 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1948113948] [2023-04-01 01:40:06,815 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1948113948] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-01 01:40:06,815 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-01 01:40:06,815 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-04-01 01:40:06,816 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1698479878] [2023-04-01 01:40:06,816 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-01 01:40:06,819 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-04-01 01:40:06,820 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-01 01:40:06,852 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-04-01 01:40:06,853 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-04-01 01:40:06,857 INFO L87 Difference]: Start difference. First operand has 1651 states, 879 states have (on average 1.2502844141069398) internal successors, (1099), 931 states have internal predecessors, (1099), 525 states have call successors, (525), 172 states have call predecessors, (525), 171 states have return successors, (519), 516 states have call predecessors, (519), 519 states have call successors, (519) Second operand has 3 states, 3 states have (on average 14.333333333333334) internal successors, (43), 3 states have internal predecessors, (43), 2 states have call successors, (28), 2 states have call predecessors, (28), 1 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) [2023-04-01 01:40:08,089 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-01 01:40:08,089 INFO L93 Difference]: Finished difference Result 3494 states and 4785 transitions. [2023-04-01 01:40:08,090 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-04-01 01:40:08,091 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 14.333333333333334) internal successors, (43), 3 states have internal predecessors, (43), 2 states have call successors, (28), 2 states have call predecessors, (28), 1 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) Word has length 198 [2023-04-01 01:40:08,092 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-01 01:40:08,109 INFO L225 Difference]: With dead ends: 3494 [2023-04-01 01:40:08,109 INFO L226 Difference]: Without dead ends: 2309 [2023-04-01 01:40:08,117 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-04-01 01:40:08,120 INFO L413 NwaCegarLoop]: 1473 mSDtfsCounter, 1491 mSDsluCounter, 1444 mSDsCounter, 0 mSdLazyCounter, 294 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1491 SdHoareTripleChecker+Valid, 2917 SdHoareTripleChecker+Invalid, 297 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 294 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2023-04-01 01:40:08,120 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1491 Valid, 2917 Invalid, 297 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 294 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2023-04-01 01:40:08,134 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2309 states. [2023-04-01 01:40:08,280 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2309 to 2299. [2023-04-01 01:40:08,284 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2299 states, 1254 states have (on average 1.2551834130781498) internal successors, (1574), 1315 states have internal predecessors, (1574), 747 states have call successors, (747), 300 states have call predecessors, (747), 297 states have return successors, (731), 725 states have call predecessors, (731), 731 states have call successors, (731) [2023-04-01 01:40:08,294 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2299 states to 2299 states and 3052 transitions. [2023-04-01 01:40:08,296 INFO L78 Accepts]: Start accepts. Automaton has 2299 states and 3052 transitions. Word has length 198 [2023-04-01 01:40:08,297 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-01 01:40:08,297 INFO L495 AbstractCegarLoop]: Abstraction has 2299 states and 3052 transitions. [2023-04-01 01:40:08,297 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.333333333333334) internal successors, (43), 3 states have internal predecessors, (43), 2 states have call successors, (28), 2 states have call predecessors, (28), 1 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) [2023-04-01 01:40:08,297 INFO L276 IsEmpty]: Start isEmpty. Operand 2299 states and 3052 transitions. [2023-04-01 01:40:08,300 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 199 [2023-04-01 01:40:08,300 INFO L187 NwaCegarLoop]: Found error trace [2023-04-01 01:40:08,300 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 7, 7, 7, 7, 7, 7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-01 01:40:08,300 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-04-01 01:40:08,300 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-01 01:40:08,301 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-01 01:40:08,301 INFO L85 PathProgramCache]: Analyzing trace with hash -1039450243, now seen corresponding path program 1 times [2023-04-01 01:40:08,301 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-01 01:40:08,301 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [692922916] [2023-04-01 01:40:08,301 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-01 01:40:08,301 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-01 01:40:08,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 01:40:08,503 INFO L134 CoverageAnalysis]: Checked inductivity of 462 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 462 trivial. 0 not checked. [2023-04-01 01:40:08,503 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-01 01:40:08,503 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [692922916] [2023-04-01 01:40:08,503 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [692922916] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-01 01:40:08,504 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-01 01:40:08,504 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-04-01 01:40:08,504 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1777036084] [2023-04-01 01:40:08,504 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-01 01:40:08,506 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-04-01 01:40:08,506 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-01 01:40:08,506 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-04-01 01:40:08,506 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-04-01 01:40:08,506 INFO L87 Difference]: Start difference. First operand 2299 states and 3052 transitions. Second operand has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 2 states have call successors, (28), 2 states have call predecessors, (28), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2023-04-01 01:40:09,377 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-01 01:40:09,378 INFO L93 Difference]: Finished difference Result 5771 states and 7583 transitions. [2023-04-01 01:40:09,378 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-04-01 01:40:09,378 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 2 states have call successors, (28), 2 states have call predecessors, (28), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) Word has length 198 [2023-04-01 01:40:09,379 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-01 01:40:09,392 INFO L225 Difference]: With dead ends: 5771 [2023-04-01 01:40:09,392 INFO L226 Difference]: Without dead ends: 3523 [2023-04-01 01:40:09,399 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-04-01 01:40:09,400 INFO L413 NwaCegarLoop]: 1473 mSDtfsCounter, 862 mSDsluCounter, 1354 mSDsCounter, 0 mSdLazyCounter, 323 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 862 SdHoareTripleChecker+Valid, 2827 SdHoareTripleChecker+Invalid, 325 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 323 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-04-01 01:40:09,400 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [862 Valid, 2827 Invalid, 325 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 323 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-04-01 01:40:09,403 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3523 states. [2023-04-01 01:40:09,488 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3523 to 3491. [2023-04-01 01:40:09,492 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3491 states, 1899 states have (on average 1.2469720905739863) internal successors, (2368), 1978 states have internal predecessors, (2368), 1104 states have call successors, (1104), 490 states have call predecessors, (1104), 487 states have return successors, (1088), 1078 states have call predecessors, (1088), 1088 states have call successors, (1088) [2023-04-01 01:40:09,506 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3491 states to 3491 states and 4560 transitions. [2023-04-01 01:40:09,507 INFO L78 Accepts]: Start accepts. Automaton has 3491 states and 4560 transitions. Word has length 198 [2023-04-01 01:40:09,509 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-01 01:40:09,509 INFO L495 AbstractCegarLoop]: Abstraction has 3491 states and 4560 transitions. [2023-04-01 01:40:09,509 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 2 states have call successors, (28), 2 states have call predecessors, (28), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2023-04-01 01:40:09,509 INFO L276 IsEmpty]: Start isEmpty. Operand 3491 states and 4560 transitions. [2023-04-01 01:40:09,513 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 222 [2023-04-01 01:40:09,514 INFO L187 NwaCegarLoop]: Found error trace [2023-04-01 01:40:09,514 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 7, 7, 7, 7, 7, 7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-01 01:40:09,514 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-04-01 01:40:09,514 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-01 01:40:09,514 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-01 01:40:09,514 INFO L85 PathProgramCache]: Analyzing trace with hash -1233800042, now seen corresponding path program 1 times [2023-04-01 01:40:09,514 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-01 01:40:09,514 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [397365832] [2023-04-01 01:40:09,515 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-01 01:40:09,515 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-01 01:40:09,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 01:40:09,807 INFO L134 CoverageAnalysis]: Checked inductivity of 462 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 462 trivial. 0 not checked. [2023-04-01 01:40:09,807 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-01 01:40:09,807 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [397365832] [2023-04-01 01:40:09,807 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [397365832] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-01 01:40:09,807 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-01 01:40:09,807 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-04-01 01:40:09,808 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2045450092] [2023-04-01 01:40:09,808 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-01 01:40:09,808 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-04-01 01:40:09,808 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-01 01:40:09,809 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-04-01 01:40:09,809 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-04-01 01:40:09,809 INFO L87 Difference]: Start difference. First operand 3491 states and 4560 transitions. Second operand has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 2 states have call successors, (33), 2 states have call predecessors, (33), 1 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) [2023-04-01 01:40:10,876 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-01 01:40:10,876 INFO L93 Difference]: Finished difference Result 8634 states and 11283 transitions. [2023-04-01 01:40:10,876 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-04-01 01:40:10,876 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 2 states have call successors, (33), 2 states have call predecessors, (33), 1 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) Word has length 221 [2023-04-01 01:40:10,877 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-01 01:40:10,899 INFO L225 Difference]: With dead ends: 8634 [2023-04-01 01:40:10,899 INFO L226 Difference]: Without dead ends: 5202 [2023-04-01 01:40:10,911 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-04-01 01:40:10,914 INFO L413 NwaCegarLoop]: 1980 mSDtfsCounter, 1068 mSDsluCounter, 1370 mSDsCounter, 0 mSdLazyCounter, 351 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1068 SdHoareTripleChecker+Valid, 3350 SdHoareTripleChecker+Invalid, 354 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 351 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2023-04-01 01:40:10,917 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1068 Valid, 3350 Invalid, 354 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 351 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2023-04-01 01:40:10,923 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5202 states. [2023-04-01 01:40:11,063 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5202 to 5155. [2023-04-01 01:40:11,071 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5155 states, 2858 states have (on average 1.254373687893632) internal successors, (3585), 2979 states have internal predecessors, (3585), 1584 states have call successors, (1584), 715 states have call predecessors, (1584), 712 states have return successors, (1568), 1552 states have call predecessors, (1568), 1568 states have call successors, (1568) [2023-04-01 01:40:11,091 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5155 states to 5155 states and 6737 transitions. [2023-04-01 01:40:11,093 INFO L78 Accepts]: Start accepts. Automaton has 5155 states and 6737 transitions. Word has length 221 [2023-04-01 01:40:11,095 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-01 01:40:11,095 INFO L495 AbstractCegarLoop]: Abstraction has 5155 states and 6737 transitions. [2023-04-01 01:40:11,095 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 2 states have call successors, (33), 2 states have call predecessors, (33), 1 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) [2023-04-01 01:40:11,095 INFO L276 IsEmpty]: Start isEmpty. Operand 5155 states and 6737 transitions. [2023-04-01 01:40:11,097 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 219 [2023-04-01 01:40:11,097 INFO L187 NwaCegarLoop]: Found error trace [2023-04-01 01:40:11,097 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 8, 8, 8, 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] [2023-04-01 01:40:11,097 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-04-01 01:40:11,097 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-01 01:40:11,098 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-01 01:40:11,098 INFO L85 PathProgramCache]: Analyzing trace with hash 367493536, now seen corresponding path program 1 times [2023-04-01 01:40:11,098 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-01 01:40:11,098 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1091296594] [2023-04-01 01:40:11,099 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-01 01:40:11,099 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-01 01:40:11,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 01:40:11,385 INFO L134 CoverageAnalysis]: Checked inductivity of 532 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 532 trivial. 0 not checked. [2023-04-01 01:40:11,385 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-01 01:40:11,385 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1091296594] [2023-04-01 01:40:11,385 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1091296594] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-01 01:40:11,385 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-01 01:40:11,385 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-04-01 01:40:11,386 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [586096690] [2023-04-01 01:40:11,386 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-01 01:40:11,386 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-04-01 01:40:11,386 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-01 01:40:11,387 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-04-01 01:40:11,387 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-04-01 01:40:11,387 INFO L87 Difference]: Start difference. First operand 5155 states and 6737 transitions. Second operand has 3 states, 3 states have (on average 16.666666666666668) internal successors, (50), 3 states have internal predecessors, (50), 3 states have call successors, (30), 3 states have call predecessors, (30), 2 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) [2023-04-01 01:40:12,023 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-01 01:40:12,023 INFO L93 Difference]: Finished difference Result 5157 states and 6738 transitions. [2023-04-01 01:40:12,023 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-04-01 01:40:12,024 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 16.666666666666668) internal successors, (50), 3 states have internal predecessors, (50), 3 states have call successors, (30), 3 states have call predecessors, (30), 2 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) Word has length 218 [2023-04-01 01:40:12,024 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-01 01:40:12,047 INFO L225 Difference]: With dead ends: 5157 [2023-04-01 01:40:12,047 INFO L226 Difference]: Without dead ends: 5154 [2023-04-01 01:40:12,050 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-04-01 01:40:12,053 INFO L413 NwaCegarLoop]: 1451 mSDtfsCounter, 1541 mSDsluCounter, 1 mSDsCounter, 0 mSdLazyCounter, 142 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1541 SdHoareTripleChecker+Valid, 1452 SdHoareTripleChecker+Invalid, 142 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 142 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-04-01 01:40:12,054 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1541 Valid, 1452 Invalid, 142 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 142 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-04-01 01:40:12,060 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5154 states. [2023-04-01 01:40:12,271 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5154 to 5154. [2023-04-01 01:40:12,287 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5154 states, 2858 states have (on average 1.2540237928621414) internal successors, (3584), 2978 states have internal predecessors, (3584), 1583 states have call successors, (1583), 715 states have call predecessors, (1583), 712 states have return successors, (1568), 1552 states have call predecessors, (1568), 1568 states have call successors, (1568) [2023-04-01 01:40:12,306 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5154 states to 5154 states and 6735 transitions. [2023-04-01 01:40:12,307 INFO L78 Accepts]: Start accepts. Automaton has 5154 states and 6735 transitions. Word has length 218 [2023-04-01 01:40:12,308 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-01 01:40:12,308 INFO L495 AbstractCegarLoop]: Abstraction has 5154 states and 6735 transitions. [2023-04-01 01:40:12,309 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.666666666666668) internal successors, (50), 3 states have internal predecessors, (50), 3 states have call successors, (30), 3 states have call predecessors, (30), 2 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) [2023-04-01 01:40:12,309 INFO L276 IsEmpty]: Start isEmpty. Operand 5154 states and 6735 transitions. [2023-04-01 01:40:12,311 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 220 [2023-04-01 01:40:12,311 INFO L187 NwaCegarLoop]: Found error trace [2023-04-01 01:40:12,311 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 8, 8, 8, 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] [2023-04-01 01:40:12,311 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-04-01 01:40:12,311 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-01 01:40:12,311 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-01 01:40:12,312 INFO L85 PathProgramCache]: Analyzing trace with hash -1493603523, now seen corresponding path program 1 times [2023-04-01 01:40:12,312 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-01 01:40:12,312 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [947558371] [2023-04-01 01:40:12,312 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-01 01:40:12,312 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-01 01:40:12,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 01:40:12,538 INFO L134 CoverageAnalysis]: Checked inductivity of 532 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 532 trivial. 0 not checked. [2023-04-01 01:40:12,538 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-01 01:40:12,538 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [947558371] [2023-04-01 01:40:12,538 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [947558371] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-01 01:40:12,538 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-01 01:40:12,538 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-04-01 01:40:12,538 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1509509133] [2023-04-01 01:40:12,539 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-01 01:40:12,539 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-04-01 01:40:12,539 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-01 01:40:12,539 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-04-01 01:40:12,539 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-04-01 01:40:12,540 INFO L87 Difference]: Start difference. First operand 5154 states and 6735 transitions. Second operand has 3 states, 3 states have (on average 17.0) internal successors, (51), 3 states have internal predecessors, (51), 3 states have call successors, (30), 3 states have call predecessors, (30), 2 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) [2023-04-01 01:40:13,275 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-01 01:40:13,275 INFO L93 Difference]: Finished difference Result 5156 states and 6736 transitions. [2023-04-01 01:40:13,276 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-04-01 01:40:13,276 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 17.0) internal successors, (51), 3 states have internal predecessors, (51), 3 states have call successors, (30), 3 states have call predecessors, (30), 2 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) Word has length 219 [2023-04-01 01:40:13,276 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-01 01:40:13,297 INFO L225 Difference]: With dead ends: 5156 [2023-04-01 01:40:13,297 INFO L226 Difference]: Without dead ends: 5153 [2023-04-01 01:40:13,301 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-04-01 01:40:13,301 INFO L413 NwaCegarLoop]: 1449 mSDtfsCounter, 1538 mSDsluCounter, 1 mSDsCounter, 0 mSdLazyCounter, 142 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1538 SdHoareTripleChecker+Valid, 1450 SdHoareTripleChecker+Invalid, 142 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 142 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-04-01 01:40:13,301 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1538 Valid, 1450 Invalid, 142 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 142 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-04-01 01:40:13,306 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5153 states. [2023-04-01 01:40:13,514 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5153 to 5153. [2023-04-01 01:40:13,520 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5153 states, 2858 states have (on average 1.2536738978306508) internal successors, (3583), 2977 states have internal predecessors, (3583), 1582 states have call successors, (1582), 715 states have call predecessors, (1582), 712 states have return successors, (1568), 1552 states have call predecessors, (1568), 1568 states have call successors, (1568) [2023-04-01 01:40:13,535 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5153 states to 5153 states and 6733 transitions. [2023-04-01 01:40:13,536 INFO L78 Accepts]: Start accepts. Automaton has 5153 states and 6733 transitions. Word has length 219 [2023-04-01 01:40:13,536 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-01 01:40:13,536 INFO L495 AbstractCegarLoop]: Abstraction has 5153 states and 6733 transitions. [2023-04-01 01:40:13,536 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.0) internal successors, (51), 3 states have internal predecessors, (51), 3 states have call successors, (30), 3 states have call predecessors, (30), 2 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) [2023-04-01 01:40:13,536 INFO L276 IsEmpty]: Start isEmpty. Operand 5153 states and 6733 transitions. [2023-04-01 01:40:13,538 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 221 [2023-04-01 01:40:13,538 INFO L187 NwaCegarLoop]: Found error trace [2023-04-01 01:40:13,538 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 8, 8, 8, 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] [2023-04-01 01:40:13,539 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-04-01 01:40:13,539 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-01 01:40:13,539 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-01 01:40:13,539 INFO L85 PathProgramCache]: Analyzing trace with hash 941934659, now seen corresponding path program 1 times [2023-04-01 01:40:13,539 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-01 01:40:13,539 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1165275566] [2023-04-01 01:40:13,539 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-01 01:40:13,539 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-01 01:40:13,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 01:40:13,740 INFO L134 CoverageAnalysis]: Checked inductivity of 532 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 532 trivial. 0 not checked. [2023-04-01 01:40:13,740 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-01 01:40:13,741 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1165275566] [2023-04-01 01:40:13,741 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1165275566] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-01 01:40:13,741 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-01 01:40:13,741 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-04-01 01:40:13,741 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [42414115] [2023-04-01 01:40:13,741 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-01 01:40:13,741 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-04-01 01:40:13,741 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-01 01:40:13,742 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-04-01 01:40:13,742 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-04-01 01:40:13,742 INFO L87 Difference]: Start difference. First operand 5153 states and 6733 transitions. Second operand has 3 states, 3 states have (on average 17.333333333333332) internal successors, (52), 3 states have internal predecessors, (52), 3 states have call successors, (30), 3 states have call predecessors, (30), 2 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) [2023-04-01 01:40:14,397 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-01 01:40:14,397 INFO L93 Difference]: Finished difference Result 5155 states and 6734 transitions. [2023-04-01 01:40:14,398 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-04-01 01:40:14,398 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 17.333333333333332) internal successors, (52), 3 states have internal predecessors, (52), 3 states have call successors, (30), 3 states have call predecessors, (30), 2 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) Word has length 220 [2023-04-01 01:40:14,398 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-01 01:40:14,419 INFO L225 Difference]: With dead ends: 5155 [2023-04-01 01:40:14,420 INFO L226 Difference]: Without dead ends: 5152 [2023-04-01 01:40:14,423 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-04-01 01:40:14,424 INFO L413 NwaCegarLoop]: 1447 mSDtfsCounter, 1535 mSDsluCounter, 1 mSDsCounter, 0 mSdLazyCounter, 142 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1535 SdHoareTripleChecker+Valid, 1448 SdHoareTripleChecker+Invalid, 142 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 142 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-04-01 01:40:14,424 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1535 Valid, 1448 Invalid, 142 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 142 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-04-01 01:40:14,428 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5152 states. [2023-04-01 01:40:14,594 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5152 to 5152. [2023-04-01 01:40:14,600 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5152 states, 2858 states have (on average 1.2533240027991603) internal successors, (3582), 2976 states have internal predecessors, (3582), 1581 states have call successors, (1581), 715 states have call predecessors, (1581), 712 states have return successors, (1568), 1552 states have call predecessors, (1568), 1568 states have call successors, (1568) [2023-04-01 01:40:14,614 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5152 states to 5152 states and 6731 transitions. [2023-04-01 01:40:14,614 INFO L78 Accepts]: Start accepts. Automaton has 5152 states and 6731 transitions. Word has length 220 [2023-04-01 01:40:14,615 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-01 01:40:14,615 INFO L495 AbstractCegarLoop]: Abstraction has 5152 states and 6731 transitions. [2023-04-01 01:40:14,615 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.333333333333332) internal successors, (52), 3 states have internal predecessors, (52), 3 states have call successors, (30), 3 states have call predecessors, (30), 2 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) [2023-04-01 01:40:14,615 INFO L276 IsEmpty]: Start isEmpty. Operand 5152 states and 6731 transitions. [2023-04-01 01:40:14,616 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 222 [2023-04-01 01:40:14,616 INFO L187 NwaCegarLoop]: Found error trace [2023-04-01 01:40:14,617 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 8, 8, 8, 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] [2023-04-01 01:40:14,617 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-04-01 01:40:14,617 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-01 01:40:14,617 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-01 01:40:14,617 INFO L85 PathProgramCache]: Analyzing trace with hash -865788160, now seen corresponding path program 1 times [2023-04-01 01:40:14,617 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-01 01:40:14,617 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [972170585] [2023-04-01 01:40:14,617 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-01 01:40:14,617 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-01 01:40:14,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 01:40:14,936 INFO L134 CoverageAnalysis]: Checked inductivity of 532 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 532 trivial. 0 not checked. [2023-04-01 01:40:14,937 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-01 01:40:14,937 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [972170585] [2023-04-01 01:40:14,937 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [972170585] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-01 01:40:14,937 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-01 01:40:14,937 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-04-01 01:40:14,937 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1549569900] [2023-04-01 01:40:14,937 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-01 01:40:14,938 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-04-01 01:40:14,938 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-01 01:40:14,938 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-04-01 01:40:14,938 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-04-01 01:40:14,939 INFO L87 Difference]: Start difference. First operand 5152 states and 6731 transitions. Second operand has 3 states, 3 states have (on average 17.666666666666668) internal successors, (53), 3 states have internal predecessors, (53), 3 states have call successors, (30), 3 states have call predecessors, (30), 2 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) [2023-04-01 01:40:15,985 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-01 01:40:15,985 INFO L93 Difference]: Finished difference Result 14591 states and 19013 transitions. [2023-04-01 01:40:15,986 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-04-01 01:40:15,986 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 17.666666666666668) internal successors, (53), 3 states have internal predecessors, (53), 3 states have call successors, (30), 3 states have call predecessors, (30), 2 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) Word has length 221 [2023-04-01 01:40:15,986 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-01 01:40:16,033 INFO L225 Difference]: With dead ends: 14591 [2023-04-01 01:40:16,033 INFO L226 Difference]: Without dead ends: 9500 [2023-04-01 01:40:16,051 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-04-01 01:40:16,051 INFO L413 NwaCegarLoop]: 1629 mSDtfsCounter, 1315 mSDsluCounter, 1324 mSDsCounter, 0 mSdLazyCounter, 303 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1315 SdHoareTripleChecker+Valid, 2953 SdHoareTripleChecker+Invalid, 310 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 303 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-04-01 01:40:16,052 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1315 Valid, 2953 Invalid, 310 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 303 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-04-01 01:40:16,061 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9500 states. [2023-04-01 01:40:16,422 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9500 to 9477. [2023-04-01 01:40:16,432 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9477 states, 5292 states have (on average 1.250755857898715) internal successors, (6619), 5501 states have internal predecessors, (6619), 2846 states have call successors, (2846), 1368 states have call predecessors, (2846), 1338 states have return successors, (2846), 2763 states have call predecessors, (2846), 2830 states have call successors, (2846) [2023-04-01 01:40:16,456 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9477 states to 9477 states and 12311 transitions. [2023-04-01 01:40:16,458 INFO L78 Accepts]: Start accepts. Automaton has 9477 states and 12311 transitions. Word has length 221 [2023-04-01 01:40:16,458 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-01 01:40:16,459 INFO L495 AbstractCegarLoop]: Abstraction has 9477 states and 12311 transitions. [2023-04-01 01:40:16,459 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.666666666666668) internal successors, (53), 3 states have internal predecessors, (53), 3 states have call successors, (30), 3 states have call predecessors, (30), 2 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) [2023-04-01 01:40:16,459 INFO L276 IsEmpty]: Start isEmpty. Operand 9477 states and 12311 transitions. [2023-04-01 01:40:16,460 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 223 [2023-04-01 01:40:16,460 INFO L187 NwaCegarLoop]: Found error trace [2023-04-01 01:40:16,460 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 8, 8, 8, 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] [2023-04-01 01:40:16,461 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-04-01 01:40:16,461 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-01 01:40:16,461 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-01 01:40:16,461 INFO L85 PathProgramCache]: Analyzing trace with hash -1070615834, now seen corresponding path program 1 times [2023-04-01 01:40:16,461 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-01 01:40:16,461 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [961975912] [2023-04-01 01:40:16,461 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-01 01:40:16,461 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-01 01:40:16,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 01:40:16,744 INFO L134 CoverageAnalysis]: Checked inductivity of 532 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 532 trivial. 0 not checked. [2023-04-01 01:40:16,744 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-01 01:40:16,744 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [961975912] [2023-04-01 01:40:16,744 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [961975912] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-01 01:40:16,744 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-01 01:40:16,744 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-04-01 01:40:16,744 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [681089729] [2023-04-01 01:40:16,744 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-01 01:40:16,745 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-04-01 01:40:16,745 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-01 01:40:16,745 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-04-01 01:40:16,745 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-04-01 01:40:16,745 INFO L87 Difference]: Start difference. First operand 9477 states and 12311 transitions. Second operand has 3 states, 3 states have (on average 18.0) internal successors, (54), 3 states have internal predecessors, (54), 3 states have call successors, (30), 3 states have call predecessors, (30), 2 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) [2023-04-01 01:40:17,625 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-01 01:40:17,626 INFO L93 Difference]: Finished difference Result 10283 states and 12989 transitions. [2023-04-01 01:40:17,626 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-04-01 01:40:17,626 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 18.0) internal successors, (54), 3 states have internal predecessors, (54), 3 states have call successors, (30), 3 states have call predecessors, (30), 2 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) Word has length 222 [2023-04-01 01:40:17,626 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-01 01:40:17,660 INFO L225 Difference]: With dead ends: 10283 [2023-04-01 01:40:17,661 INFO L226 Difference]: Without dead ends: 10279 [2023-04-01 01:40:17,666 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-04-01 01:40:17,668 INFO L413 NwaCegarLoop]: 1472 mSDtfsCounter, 1283 mSDsluCounter, 312 mSDsCounter, 0 mSdLazyCounter, 189 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1283 SdHoareTripleChecker+Valid, 1784 SdHoareTripleChecker+Invalid, 191 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 189 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-04-01 01:40:17,668 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1283 Valid, 1784 Invalid, 191 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 189 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-04-01 01:40:17,676 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10279 states. [2023-04-01 01:40:18,207 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10279 to 10273. [2023-04-01 01:40:18,219 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10273 states, 5714 states have (on average 1.2338116905845293) internal successors, (7050), 5917 states have internal predecessors, (7050), 2958 states have call successors, (2958), 1634 states have call predecessors, (2958), 1600 states have return successors, (2960), 2877 states have call predecessors, (2960), 2944 states have call successors, (2960) [2023-04-01 01:40:18,246 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10273 states to 10273 states and 12968 transitions. [2023-04-01 01:40:18,247 INFO L78 Accepts]: Start accepts. Automaton has 10273 states and 12968 transitions. Word has length 222 [2023-04-01 01:40:18,247 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-01 01:40:18,247 INFO L495 AbstractCegarLoop]: Abstraction has 10273 states and 12968 transitions. [2023-04-01 01:40:18,247 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 18.0) internal successors, (54), 3 states have internal predecessors, (54), 3 states have call successors, (30), 3 states have call predecessors, (30), 2 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) [2023-04-01 01:40:18,248 INFO L276 IsEmpty]: Start isEmpty. Operand 10273 states and 12968 transitions. [2023-04-01 01:40:18,249 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 224 [2023-04-01 01:40:18,249 INFO L187 NwaCegarLoop]: Found error trace [2023-04-01 01:40:18,249 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 8, 8, 8, 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] [2023-04-01 01:40:18,249 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-04-01 01:40:18,250 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-01 01:40:18,250 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-01 01:40:18,250 INFO L85 PathProgramCache]: Analyzing trace with hash 1169665731, now seen corresponding path program 1 times [2023-04-01 01:40:18,250 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-01 01:40:18,250 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1455497365] [2023-04-01 01:40:18,250 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-01 01:40:18,250 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-01 01:40:18,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 01:40:18,510 INFO L134 CoverageAnalysis]: Checked inductivity of 532 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 532 trivial. 0 not checked. [2023-04-01 01:40:18,511 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-01 01:40:18,511 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1455497365] [2023-04-01 01:40:18,511 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1455497365] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-01 01:40:18,511 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-01 01:40:18,511 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-04-01 01:40:18,511 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1367038888] [2023-04-01 01:40:18,511 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-01 01:40:18,512 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-04-01 01:40:18,512 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-01 01:40:18,512 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-04-01 01:40:18,512 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-04-01 01:40:18,512 INFO L87 Difference]: Start difference. First operand 10273 states and 12968 transitions. Second operand has 3 states, 3 states have (on average 18.333333333333332) internal successors, (55), 3 states have internal predecessors, (55), 3 states have call successors, (30), 3 states have call predecessors, (30), 2 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) [2023-04-01 01:40:20,079 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-01 01:40:20,079 INFO L93 Difference]: Finished difference Result 28371 states and 35958 transitions. [2023-04-01 01:40:20,079 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-04-01 01:40:20,080 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 18.333333333333332) internal successors, (55), 3 states have internal predecessors, (55), 3 states have call successors, (30), 3 states have call predecessors, (30), 2 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) Word has length 223 [2023-04-01 01:40:20,080 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-01 01:40:20,138 INFO L225 Difference]: With dead ends: 28371 [2023-04-01 01:40:20,138 INFO L226 Difference]: Without dead ends: 18141 [2023-04-01 01:40:20,173 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-04-01 01:40:20,174 INFO L413 NwaCegarLoop]: 1470 mSDtfsCounter, 1363 mSDsluCounter, 1230 mSDsCounter, 0 mSdLazyCounter, 282 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1363 SdHoareTripleChecker+Valid, 2700 SdHoareTripleChecker+Invalid, 288 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 282 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2023-04-01 01:40:20,174 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1363 Valid, 2700 Invalid, 288 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 282 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2023-04-01 01:40:20,191 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18141 states. [2023-04-01 01:40:20,905 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18141 to 18098. [2023-04-01 01:40:20,927 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18098 states, 10170 states have (on average 1.2417895771878074) internal successors, (12629), 10519 states have internal predecessors, (12629), 5128 states have call successors, (5128), 2930 states have call predecessors, (5128), 2799 states have return successors, (5191), 4900 states have call predecessors, (5191), 5111 states have call successors, (5191) [2023-04-01 01:40:20,981 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18098 states to 18098 states and 22948 transitions. [2023-04-01 01:40:20,985 INFO L78 Accepts]: Start accepts. Automaton has 18098 states and 22948 transitions. Word has length 223 [2023-04-01 01:40:20,986 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-01 01:40:20,986 INFO L495 AbstractCegarLoop]: Abstraction has 18098 states and 22948 transitions. [2023-04-01 01:40:20,986 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 18.333333333333332) internal successors, (55), 3 states have internal predecessors, (55), 3 states have call successors, (30), 3 states have call predecessors, (30), 2 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) [2023-04-01 01:40:20,986 INFO L276 IsEmpty]: Start isEmpty. Operand 18098 states and 22948 transitions. [2023-04-01 01:40:20,991 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 283 [2023-04-01 01:40:20,991 INFO L187 NwaCegarLoop]: Found error trace [2023-04-01 01:40:20,991 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 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] [2023-04-01 01:40:20,991 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-04-01 01:40:20,991 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-01 01:40:20,991 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-01 01:40:20,992 INFO L85 PathProgramCache]: Analyzing trace with hash -1553281389, now seen corresponding path program 1 times [2023-04-01 01:40:20,992 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-01 01:40:20,992 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1958947209] [2023-04-01 01:40:20,992 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-01 01:40:20,992 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-01 01:40:21,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 01:40:21,312 INFO L134 CoverageAnalysis]: Checked inductivity of 705 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 702 trivial. 0 not checked. [2023-04-01 01:40:21,312 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-01 01:40:21,312 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1958947209] [2023-04-01 01:40:21,312 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1958947209] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-01 01:40:21,313 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-01 01:40:21,313 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-04-01 01:40:21,313 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [927530907] [2023-04-01 01:40:21,313 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-01 01:40:21,313 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-04-01 01:40:21,313 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-01 01:40:21,314 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-04-01 01:40:21,314 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-04-01 01:40:21,314 INFO L87 Difference]: Start difference. First operand 18098 states and 22948 transitions. Second operand has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 states have internal predecessors, (78), 3 states have call successors, (40), 2 states have call predecessors, (40), 1 states have return successors, (35), 3 states have call predecessors, (35), 3 states have call successors, (35) [2023-04-01 01:40:23,483 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-01 01:40:23,483 INFO L93 Difference]: Finished difference Result 44903 states and 56873 transitions. [2023-04-01 01:40:23,483 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-04-01 01:40:23,484 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 states have internal predecessors, (78), 3 states have call successors, (40), 2 states have call predecessors, (40), 1 states have return successors, (35), 3 states have call predecessors, (35), 3 states have call successors, (35) Word has length 282 [2023-04-01 01:40:23,484 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-01 01:40:23,565 INFO L225 Difference]: With dead ends: 44903 [2023-04-01 01:40:23,565 INFO L226 Difference]: Without dead ends: 26866 [2023-04-01 01:40:23,611 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-04-01 01:40:23,611 INFO L413 NwaCegarLoop]: 2101 mSDtfsCounter, 1188 mSDsluCounter, 1302 mSDsCounter, 0 mSdLazyCounter, 401 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1188 SdHoareTripleChecker+Valid, 3403 SdHoareTripleChecker+Invalid, 421 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 401 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2023-04-01 01:40:23,612 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1188 Valid, 3403 Invalid, 421 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 401 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2023-04-01 01:40:23,633 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26866 states. [2023-04-01 01:40:24,902 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26866 to 26796. [2023-04-01 01:40:24,927 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26796 states, 15194 states have (on average 1.2375937870211926) internal successors, (18804), 15719 states have internal predecessors, (18804), 7422 states have call successors, (7422), 4362 states have call predecessors, (7422), 4179 states have return successors, (7497), 7100 states have call predecessors, (7497), 7405 states have call successors, (7497) [2023-04-01 01:40:25,084 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26796 states to 26796 states and 33723 transitions. [2023-04-01 01:40:25,090 INFO L78 Accepts]: Start accepts. Automaton has 26796 states and 33723 transitions. Word has length 282 [2023-04-01 01:40:25,093 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-01 01:40:25,093 INFO L495 AbstractCegarLoop]: Abstraction has 26796 states and 33723 transitions. [2023-04-01 01:40:25,093 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 states have internal predecessors, (78), 3 states have call successors, (40), 2 states have call predecessors, (40), 1 states have return successors, (35), 3 states have call predecessors, (35), 3 states have call successors, (35) [2023-04-01 01:40:25,093 INFO L276 IsEmpty]: Start isEmpty. Operand 26796 states and 33723 transitions. [2023-04-01 01:40:25,103 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 285 [2023-04-01 01:40:25,103 INFO L187 NwaCegarLoop]: Found error trace [2023-04-01 01:40:25,103 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 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] [2023-04-01 01:40:25,103 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-04-01 01:40:25,103 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-01 01:40:25,104 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-01 01:40:25,104 INFO L85 PathProgramCache]: Analyzing trace with hash 204664204, now seen corresponding path program 1 times [2023-04-01 01:40:25,104 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-01 01:40:25,104 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1926496671] [2023-04-01 01:40:25,104 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-01 01:40:25,105 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-01 01:40:25,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 01:40:25,356 INFO L134 CoverageAnalysis]: Checked inductivity of 535 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 532 trivial. 0 not checked. [2023-04-01 01:40:25,356 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-01 01:40:25,356 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1926496671] [2023-04-01 01:40:25,356 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1926496671] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-01 01:40:25,356 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-01 01:40:25,356 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-04-01 01:40:25,356 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [568266648] [2023-04-01 01:40:25,357 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-01 01:40:25,357 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-04-01 01:40:25,357 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-01 01:40:25,357 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-04-01 01:40:25,357 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-04-01 01:40:25,358 INFO L87 Difference]: Start difference. First operand 26796 states and 33723 transitions. Second operand has 3 states, 3 states have (on average 30.666666666666668) internal successors, (92), 3 states have internal predecessors, (92), 2 states have call successors, (43), 2 states have call predecessors, (43), 1 states have return successors, (38), 2 states have call predecessors, (38), 2 states have call successors, (38) [2023-04-01 01:40:26,818 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-01 01:40:26,819 INFO L93 Difference]: Finished difference Result 40554 states and 51007 transitions. [2023-04-01 01:40:26,819 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-04-01 01:40:26,819 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), 2 states have call successors, (43), 2 states have call predecessors, (43), 1 states have return successors, (38), 2 states have call predecessors, (38), 2 states have call successors, (38) Word has length 284 [2023-04-01 01:40:26,820 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-01 01:40:26,864 INFO L225 Difference]: With dead ends: 40554 [2023-04-01 01:40:26,864 INFO L226 Difference]: Without dead ends: 13816 [2023-04-01 01:40:26,922 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-04-01 01:40:26,923 INFO L413 NwaCegarLoop]: 1454 mSDtfsCounter, 12 mSDsluCounter, 1439 mSDsCounter, 0 mSdLazyCounter, 286 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 2893 SdHoareTripleChecker+Invalid, 287 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 286 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-04-01 01:40:26,923 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 2893 Invalid, 287 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 286 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-04-01 01:40:26,933 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13816 states. [2023-04-01 01:40:27,520 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13816 to 13557. [2023-04-01 01:40:27,533 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13557 states, 7691 states have (on average 1.240800936159147) internal successors, (9543), 7960 states have internal predecessors, (9543), 3754 states have call successors, (3754), 2207 states have call predecessors, (3754), 2111 states have return successors, (3783), 3584 states have call predecessors, (3783), 3737 states have call successors, (3783) [2023-04-01 01:40:27,570 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13557 states to 13557 states and 17080 transitions. [2023-04-01 01:40:27,579 INFO L78 Accepts]: Start accepts. Automaton has 13557 states and 17080 transitions. Word has length 284 [2023-04-01 01:40:27,579 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-01 01:40:27,579 INFO L495 AbstractCegarLoop]: Abstraction has 13557 states and 17080 transitions. [2023-04-01 01:40:27,579 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), 2 states have call successors, (43), 2 states have call predecessors, (43), 1 states have return successors, (38), 2 states have call predecessors, (38), 2 states have call successors, (38) [2023-04-01 01:40:27,580 INFO L276 IsEmpty]: Start isEmpty. Operand 13557 states and 17080 transitions. [2023-04-01 01:40:27,583 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 301 [2023-04-01 01:40:27,583 INFO L187 NwaCegarLoop]: Found error trace [2023-04-01 01:40:27,583 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 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] [2023-04-01 01:40:27,583 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-04-01 01:40:27,583 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-01 01:40:27,584 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-01 01:40:27,584 INFO L85 PathProgramCache]: Analyzing trace with hash 1834061168, now seen corresponding path program 1 times [2023-04-01 01:40:27,584 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-01 01:40:27,584 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1098462367] [2023-04-01 01:40:27,584 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-01 01:40:27,584 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-01 01:40:27,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 01:40:28,021 INFO L134 CoverageAnalysis]: Checked inductivity of 705 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 705 trivial. 0 not checked. [2023-04-01 01:40:28,021 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-01 01:40:28,021 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1098462367] [2023-04-01 01:40:28,021 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1098462367] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-01 01:40:28,021 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-01 01:40:28,022 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-04-01 01:40:28,022 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1037737028] [2023-04-01 01:40:28,022 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-01 01:40:28,022 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-04-01 01:40:28,022 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-01 01:40:28,022 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-04-01 01:40:28,023 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-04-01 01:40:28,023 INFO L87 Difference]: Start difference. First operand 13557 states and 17080 transitions. Second operand has 3 states, 3 states have (on average 28.666666666666668) internal successors, (86), 3 states have internal predecessors, (86), 3 states have call successors, (44), 3 states have call predecessors, (44), 2 states have return successors, (39), 2 states have call predecessors, (39), 2 states have call successors, (39) [2023-04-01 01:40:29,534 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-01 01:40:29,534 INFO L93 Difference]: Finished difference Result 13565 states and 17086 transitions. [2023-04-01 01:40:29,534 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-04-01 01:40:29,535 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 28.666666666666668) internal successors, (86), 3 states have internal predecessors, (86), 3 states have call successors, (44), 3 states have call predecessors, (44), 2 states have return successors, (39), 2 states have call predecessors, (39), 2 states have call successors, (39) Word has length 300 [2023-04-01 01:40:29,535 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-01 01:40:29,565 INFO L225 Difference]: With dead ends: 13565 [2023-04-01 01:40:29,565 INFO L226 Difference]: Without dead ends: 13562 [2023-04-01 01:40:29,569 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 [2023-04-01 01:40:29,570 INFO L413 NwaCegarLoop]: 1469 mSDtfsCounter, 338 mSDsluCounter, 1205 mSDsCounter, 0 mSdLazyCounter, 299 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 338 SdHoareTripleChecker+Valid, 2674 SdHoareTripleChecker+Invalid, 299 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 299 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2023-04-01 01:40:29,570 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [338 Valid, 2674 Invalid, 299 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 299 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2023-04-01 01:40:29,579 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13562 states. [2023-04-01 01:40:29,987 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13562 to 13556. [2023-04-01 01:40:29,998 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13556 states, 7691 states have (on average 1.2391106488102976) internal successors, (9530), 7959 states have internal predecessors, (9530), 3753 states have call successors, (3753), 2207 states have call predecessors, (3753), 2111 states have return successors, (3783), 3584 states have call predecessors, (3783), 3737 states have call successors, (3783) [2023-04-01 01:40:30,033 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13556 states to 13556 states and 17066 transitions. [2023-04-01 01:40:30,034 INFO L78 Accepts]: Start accepts. Automaton has 13556 states and 17066 transitions. Word has length 300 [2023-04-01 01:40:30,035 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-01 01:40:30,035 INFO L495 AbstractCegarLoop]: Abstraction has 13556 states and 17066 transitions. [2023-04-01 01:40:30,035 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 28.666666666666668) internal successors, (86), 3 states have internal predecessors, (86), 3 states have call successors, (44), 3 states have call predecessors, (44), 2 states have return successors, (39), 2 states have call predecessors, (39), 2 states have call successors, (39) [2023-04-01 01:40:30,035 INFO L276 IsEmpty]: Start isEmpty. Operand 13556 states and 17066 transitions. [2023-04-01 01:40:30,038 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 312 [2023-04-01 01:40:30,038 INFO L187 NwaCegarLoop]: Found error trace [2023-04-01 01:40:30,039 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-01 01:40:30,039 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-04-01 01:40:30,039 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-01 01:40:30,039 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-01 01:40:30,039 INFO L85 PathProgramCache]: Analyzing trace with hash -1362017319, now seen corresponding path program 1 times [2023-04-01 01:40:30,039 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-01 01:40:30,039 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [43498164] [2023-04-01 01:40:30,039 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-01 01:40:30,039 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-01 01:40:30,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 01:40:30,421 INFO L134 CoverageAnalysis]: Checked inductivity of 705 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 702 trivial. 0 not checked. [2023-04-01 01:40:30,421 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-01 01:40:30,421 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [43498164] [2023-04-01 01:40:30,421 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [43498164] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-01 01:40:30,421 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-01 01:40:30,421 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-04-01 01:40:30,421 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [611875194] [2023-04-01 01:40:30,421 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-01 01:40:30,422 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-04-01 01:40:30,422 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-01 01:40:30,422 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-04-01 01:40:30,423 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-04-01 01:40:30,423 INFO L87 Difference]: Start difference. First operand 13556 states and 17066 transitions. Second operand has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 3 states have internal predecessors, (95), 3 states have call successors, (46), 2 states have call predecessors, (46), 2 states have return successors, (41), 3 states have call predecessors, (41), 3 states have call successors, (41) [2023-04-01 01:40:31,973 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-01 01:40:31,973 INFO L93 Difference]: Finished difference Result 31474 states and 39613 transitions. [2023-04-01 01:40:31,973 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-04-01 01:40:31,973 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 3 states have internal predecessors, (95), 3 states have call successors, (46), 2 states have call predecessors, (46), 2 states have return successors, (41), 3 states have call predecessors, (41), 3 states have call successors, (41) Word has length 311 [2023-04-01 01:40:31,975 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-01 01:40:32,024 INFO L225 Difference]: With dead ends: 31474 [2023-04-01 01:40:32,024 INFO L226 Difference]: Without dead ends: 18083 [2023-04-01 01:40:32,054 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-04-01 01:40:32,055 INFO L413 NwaCegarLoop]: 1771 mSDtfsCounter, 1222 mSDsluCounter, 1224 mSDsCounter, 0 mSdLazyCounter, 312 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1222 SdHoareTripleChecker+Valid, 2995 SdHoareTripleChecker+Invalid, 321 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 312 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2023-04-01 01:40:32,055 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1222 Valid, 2995 Invalid, 321 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 312 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2023-04-01 01:40:32,068 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18083 states. [2023-04-01 01:40:32,718 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18083 to 18004. [2023-04-01 01:40:32,733 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18004 states, 10367 states have (on average 1.2434648403588309) internal successors, (12891), 10735 states have internal predecessors, (12891), 4821 states have call successors, (4821), 2933 states have call predecessors, (4821), 2815 states have return successors, (4865), 4610 states have call predecessors, (4865), 4805 states have call successors, (4865) [2023-04-01 01:40:32,776 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18004 states to 18004 states and 22577 transitions. [2023-04-01 01:40:32,780 INFO L78 Accepts]: Start accepts. Automaton has 18004 states and 22577 transitions. Word has length 311 [2023-04-01 01:40:32,781 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-01 01:40:32,781 INFO L495 AbstractCegarLoop]: Abstraction has 18004 states and 22577 transitions. [2023-04-01 01:40:32,781 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 3 states have internal predecessors, (95), 3 states have call successors, (46), 2 states have call predecessors, (46), 2 states have return successors, (41), 3 states have call predecessors, (41), 3 states have call successors, (41) [2023-04-01 01:40:32,781 INFO L276 IsEmpty]: Start isEmpty. Operand 18004 states and 22577 transitions. [2023-04-01 01:40:32,786 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 329 [2023-04-01 01:40:32,786 INFO L187 NwaCegarLoop]: Found error trace [2023-04-01 01:40:32,786 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 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] [2023-04-01 01:40:32,786 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2023-04-01 01:40:32,786 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-01 01:40:32,786 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-01 01:40:32,787 INFO L85 PathProgramCache]: Analyzing trace with hash 1149315496, now seen corresponding path program 1 times [2023-04-01 01:40:32,787 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-01 01:40:32,787 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [832292039] [2023-04-01 01:40:32,787 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-01 01:40:32,787 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-01 01:40:32,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 01:40:33,664 INFO L134 CoverageAnalysis]: Checked inductivity of 705 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 705 trivial. 0 not checked. [2023-04-01 01:40:33,664 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-01 01:40:33,664 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [832292039] [2023-04-01 01:40:33,664 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [832292039] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-01 01:40:33,664 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-01 01:40:33,664 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-04-01 01:40:33,665 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1439792512] [2023-04-01 01:40:33,665 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-01 01:40:33,665 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-04-01 01:40:33,665 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-01 01:40:33,665 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-04-01 01:40:33,666 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2023-04-01 01:40:33,666 INFO L87 Difference]: Start difference. First operand 18004 states and 22577 transitions. Second operand has 8 states, 6 states have (on average 16.666666666666668) internal successors, (100), 6 states have internal predecessors, (100), 3 states have call successors, (51), 3 states have call predecessors, (51), 3 states have return successors, (46), 4 states have call predecessors, (46), 2 states have call successors, (46) [2023-04-01 01:40:38,578 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-01 01:40:38,579 INFO L93 Difference]: Finished difference Result 43591 states and 54746 transitions. [2023-04-01 01:40:38,579 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-04-01 01:40:38,579 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 6 states have (on average 16.666666666666668) internal successors, (100), 6 states have internal predecessors, (100), 3 states have call successors, (51), 3 states have call predecessors, (51), 3 states have return successors, (46), 4 states have call predecessors, (46), 2 states have call successors, (46) Word has length 328 [2023-04-01 01:40:38,580 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-01 01:40:38,647 INFO L225 Difference]: With dead ends: 43591 [2023-04-01 01:40:38,648 INFO L226 Difference]: Without dead ends: 25752 [2023-04-01 01:40:38,684 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 [2023-04-01 01:40:38,685 INFO L413 NwaCegarLoop]: 2450 mSDtfsCounter, 2063 mSDsluCounter, 6387 mSDsCounter, 0 mSdLazyCounter, 1006 mSolverCounterSat, 637 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2064 SdHoareTripleChecker+Valid, 8837 SdHoareTripleChecker+Invalid, 1643 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 637 IncrementalHoareTripleChecker+Valid, 1006 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.9s IncrementalHoareTripleChecker+Time [2023-04-01 01:40:38,685 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2064 Valid, 8837 Invalid, 1643 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [637 Valid, 1006 Invalid, 0 Unknown, 0 Unchecked, 3.9s Time] [2023-04-01 01:40:38,704 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25752 states. [2023-04-01 01:40:39,729 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25752 to 25566. [2023-04-01 01:40:39,750 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25566 states, 14775 states have (on average 1.246362098138748) internal successors, (18415), 15317 states have internal predecessors, (18415), 6777 states have call successors, (6777), 4162 states have call predecessors, (6777), 4013 states have return successors, (6823), 6451 states have call predecessors, (6823), 6727 states have call successors, (6823) [2023-04-01 01:40:39,828 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25566 states to 25566 states and 32015 transitions. [2023-04-01 01:40:39,834 INFO L78 Accepts]: Start accepts. Automaton has 25566 states and 32015 transitions. Word has length 328 [2023-04-01 01:40:39,834 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-01 01:40:39,834 INFO L495 AbstractCegarLoop]: Abstraction has 25566 states and 32015 transitions. [2023-04-01 01:40:39,835 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 6 states have (on average 16.666666666666668) internal successors, (100), 6 states have internal predecessors, (100), 3 states have call successors, (51), 3 states have call predecessors, (51), 3 states have return successors, (46), 4 states have call predecessors, (46), 2 states have call successors, (46) [2023-04-01 01:40:39,835 INFO L276 IsEmpty]: Start isEmpty. Operand 25566 states and 32015 transitions. [2023-04-01 01:40:39,841 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 326 [2023-04-01 01:40:39,841 INFO L187 NwaCegarLoop]: Found error trace [2023-04-01 01:40:39,841 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-01 01:40:39,841 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2023-04-01 01:40:39,841 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-01 01:40:39,842 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-01 01:40:39,842 INFO L85 PathProgramCache]: Analyzing trace with hash -200237643, now seen corresponding path program 1 times [2023-04-01 01:40:39,842 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-01 01:40:39,842 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [253270239] [2023-04-01 01:40:39,842 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-01 01:40:39,842 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-01 01:40:39,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 01:40:40,889 INFO L134 CoverageAnalysis]: Checked inductivity of 715 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 709 trivial. 0 not checked. [2023-04-01 01:40:40,889 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-01 01:40:40,889 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [253270239] [2023-04-01 01:40:40,889 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [253270239] provided 0 perfect and 1 imperfect interpolant sequences [2023-04-01 01:40:40,889 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1070119863] [2023-04-01 01:40:40,889 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-01 01:40:40,889 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-01 01:40:40,889 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-01 01:40:40,892 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-04-01 01:40:40,895 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-04-01 01:40:41,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 01:40:41,769 INFO L262 TraceCheckSpWp]: Trace formula consists of 4005 conjuncts, 28 conjunts are in the unsatisfiable core [2023-04-01 01:40:41,784 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-04-01 01:40:42,219 INFO L134 CoverageAnalysis]: Checked inductivity of 715 backedges. 216 proven. 0 refuted. 0 times theorem prover too weak. 499 trivial. 0 not checked. [2023-04-01 01:40:42,219 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-04-01 01:40:42,219 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1070119863] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-01 01:40:42,219 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-04-01 01:40:42,219 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [9] total 13 [2023-04-01 01:40:42,220 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1426256527] [2023-04-01 01:40:42,220 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-01 01:40:42,220 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-04-01 01:40:42,220 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-01 01:40:42,221 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-04-01 01:40:42,221 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=114, Unknown=0, NotChecked=0, Total=156 [2023-04-01 01:40:42,221 INFO L87 Difference]: Start difference. First operand 25566 states and 32015 transitions. Second operand has 7 states, 6 states have (on average 17.666666666666668) internal successors, (106), 5 states have internal predecessors, (106), 4 states have call successors, (49), 4 states have call predecessors, (49), 4 states have return successors, (44), 4 states have call predecessors, (44), 4 states have call successors, (44) [2023-04-01 01:40:47,447 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-01 01:40:47,448 INFO L93 Difference]: Finished difference Result 54615 states and 68453 transitions. [2023-04-01 01:40:47,448 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-04-01 01:40:47,448 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 17.666666666666668) internal successors, (106), 5 states have internal predecessors, (106), 4 states have call successors, (49), 4 states have call predecessors, (49), 4 states have return successors, (44), 4 states have call predecessors, (44), 4 states have call successors, (44) Word has length 325 [2023-04-01 01:40:47,449 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-01 01:40:47,542 INFO L225 Difference]: With dead ends: 54615 [2023-04-01 01:40:47,543 INFO L226 Difference]: Without dead ends: 29214 [2023-04-01 01:40:47,610 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 339 GetRequests, 327 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=52, Invalid=130, Unknown=0, NotChecked=0, Total=182 [2023-04-01 01:40:47,611 INFO L413 NwaCegarLoop]: 1807 mSDtfsCounter, 2463 mSDsluCounter, 3700 mSDsCounter, 0 mSdLazyCounter, 3816 mSolverCounterSat, 361 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2468 SdHoareTripleChecker+Valid, 5507 SdHoareTripleChecker+Invalid, 4177 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 361 IncrementalHoareTripleChecker+Valid, 3816 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.2s IncrementalHoareTripleChecker+Time [2023-04-01 01:40:47,611 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2468 Valid, 5507 Invalid, 4177 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [361 Valid, 3816 Invalid, 0 Unknown, 0 Unchecked, 4.2s Time] [2023-04-01 01:40:47,638 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29214 states. [2023-04-01 01:40:48,689 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29214 to 28770. [2023-04-01 01:40:48,716 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28770 states, 16751 states have (on average 1.2504328099814936) internal successors, (20946), 17371 states have internal predecessors, (20946), 7519 states have call successors, (7519), 4654 states have call predecessors, (7519), 4499 states have return successors, (7595), 7165 states have call predecessors, (7595), 7469 states have call successors, (7595) [2023-04-01 01:40:48,799 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28770 states to 28770 states and 36060 transitions. [2023-04-01 01:40:48,805 INFO L78 Accepts]: Start accepts. Automaton has 28770 states and 36060 transitions. Word has length 325 [2023-04-01 01:40:48,806 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-01 01:40:48,806 INFO L495 AbstractCegarLoop]: Abstraction has 28770 states and 36060 transitions. [2023-04-01 01:40:48,806 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 17.666666666666668) internal successors, (106), 5 states have internal predecessors, (106), 4 states have call successors, (49), 4 states have call predecessors, (49), 4 states have return successors, (44), 4 states have call predecessors, (44), 4 states have call successors, (44) [2023-04-01 01:40:48,806 INFO L276 IsEmpty]: Start isEmpty. Operand 28770 states and 36060 transitions. [2023-04-01 01:40:48,814 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 351 [2023-04-01 01:40:48,815 INFO L187 NwaCegarLoop]: Found error trace [2023-04-01 01:40:48,817 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 3, 3, 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] [2023-04-01 01:40:48,833 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2023-04-01 01:40:49,028 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2023-04-01 01:40:49,029 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-01 01:40:49,029 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-01 01:40:49,029 INFO L85 PathProgramCache]: Analyzing trace with hash -1449028550, now seen corresponding path program 1 times [2023-04-01 01:40:49,030 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-01 01:40:49,030 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2087901191] [2023-04-01 01:40:49,030 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-01 01:40:49,030 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-01 01:40:49,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat