/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/automizer/svcomp-Reach-32bit-Automizer_Default.epf -tc ../../../trunk/examples/toolchains/AutomizerC.xml -i ../sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--misc--phantom.ko-main.cil.out.i -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-f954360 [2023-03-31 02:38:35,923 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-03-31 02:38:35,924 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-03-31 02:38:35,949 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-03-31 02:38:35,949 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-03-31 02:38:35,950 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-03-31 02:38:35,951 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-03-31 02:38:35,952 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-03-31 02:38:35,956 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-03-31 02:38:35,959 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-03-31 02:38:35,961 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-03-31 02:38:35,962 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-03-31 02:38:35,963 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-03-31 02:38:35,966 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-03-31 02:38:35,966 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-03-31 02:38:35,968 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-03-31 02:38:35,968 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-03-31 02:38:35,969 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-03-31 02:38:35,971 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-03-31 02:38:35,974 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-03-31 02:38:35,975 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-03-31 02:38:35,976 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-03-31 02:38:35,977 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-03-31 02:38:35,978 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-03-31 02:38:35,983 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-03-31 02:38:35,984 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-03-31 02:38:35,984 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-03-31 02:38:35,985 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-03-31 02:38:35,985 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-03-31 02:38:35,985 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-03-31 02:38:35,985 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-03-31 02:38:35,986 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-03-31 02:38:35,987 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-03-31 02:38:35,987 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-03-31 02:38:35,987 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-03-31 02:38:35,988 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-03-31 02:38:35,988 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-03-31 02:38:35,988 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-03-31 02:38:35,988 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-03-31 02:38:35,989 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-03-31 02:38:35,989 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-03-31 02:38:35,990 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2023-03-31 02:38:36,012 INFO L113 SettingsManager]: Loading preferences was successful [2023-03-31 02:38:36,012 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-03-31 02:38:36,012 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-03-31 02:38:36,013 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-03-31 02:38:36,013 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-03-31 02:38:36,014 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-03-31 02:38:36,014 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-03-31 02:38:36,014 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-03-31 02:38:36,014 INFO L138 SettingsManager]: * Use SBE=true [2023-03-31 02:38:36,014 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-03-31 02:38:36,015 INFO L138 SettingsManager]: * sizeof long=4 [2023-03-31 02:38:36,015 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-03-31 02:38:36,015 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-03-31 02:38:36,015 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-03-31 02:38:36,015 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-03-31 02:38:36,015 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-03-31 02:38:36,015 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-03-31 02:38:36,015 INFO L138 SettingsManager]: * sizeof long double=12 [2023-03-31 02:38:36,015 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-03-31 02:38:36,015 INFO L138 SettingsManager]: * Use constant arrays=true [2023-03-31 02:38:36,015 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-03-31 02:38:36,016 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-03-31 02:38:36,016 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-03-31 02:38:36,016 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-03-31 02:38:36,016 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-03-31 02:38:36,016 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-03-31 02:38:36,016 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-03-31 02:38:36,016 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-03-31 02:38:36,017 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-03-31 02:38:36,017 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-03-31 02:38:36,017 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-03-31 02:38:36,017 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-03-31 02:38:36,017 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-03-31 02:38:36,017 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-03-31 02:38:36,017 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-03-31 02:38:36,017 INFO L138 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2023-03-31 02:38:36,177 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-03-31 02:38:36,197 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-03-31 02:38:36,199 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-03-31 02:38:36,199 INFO L271 PluginConnector]: Initializing CDTParser... [2023-03-31 02:38:36,200 INFO L275 PluginConnector]: CDTParser initialized [2023-03-31 02:38:36,200 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--misc--phantom.ko-main.cil.out.i [2023-03-31 02:38:37,042 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-03-31 02:38:37,421 INFO L351 CDTParser]: Found 1 translation units. [2023-03-31 02:38:37,421 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--misc--phantom.ko-main.cil.out.i [2023-03-31 02:38:37,448 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8b709f842/70ab48a5a8ac48ee83d1c8a31e4b11e2/FLAGa6856fb04 [2023-03-31 02:38:37,463 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8b709f842/70ab48a5a8ac48ee83d1c8a31e4b11e2 [2023-03-31 02:38:37,464 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-03-31 02:38:37,466 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2023-03-31 02:38:37,468 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-03-31 02:38:37,468 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-03-31 02:38:37,470 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-03-31 02:38:37,470 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.03 02:38:37" (1/1) ... [2023-03-31 02:38:37,471 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@41022e73 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 02:38:37, skipping insertion in model container [2023-03-31 02:38:37,471 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.03 02:38:37" (1/1) ... [2023-03-31 02:38:37,475 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-03-31 02:38:37,539 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-03-31 02:38:38,222 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-consumption/32_7a_cilled_linux-3.8-rc1-drivers--misc--phantom.ko-main.cil.out.i[129019,129032] [2023-03-31 02:38:38,293 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-03-31 02:38:38,314 INFO L203 MainTranslator]: Completed pre-run [2023-03-31 02:38:38,470 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-consumption/32_7a_cilled_linux-3.8-rc1-drivers--misc--phantom.ko-main.cil.out.i[129019,129032] [2023-03-31 02:38:38,489 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-03-31 02:38:38,528 INFO L208 MainTranslator]: Completed translation [2023-03-31 02:38:38,529 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 02:38:38 WrapperNode [2023-03-31 02:38:38,529 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-03-31 02:38:38,530 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-03-31 02:38:38,530 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-03-31 02:38:38,530 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-03-31 02:38:38,538 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 02:38:38" (1/1) ... [2023-03-31 02:38:38,538 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 02:38:38" (1/1) ... [2023-03-31 02:38:38,577 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 02:38:38" (1/1) ... [2023-03-31 02:38:38,577 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 02:38:38" (1/1) ... [2023-03-31 02:38:38,628 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 02:38:38" (1/1) ... [2023-03-31 02:38:38,649 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 02:38:38" (1/1) ... [2023-03-31 02:38:38,665 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 02:38:38" (1/1) ... [2023-03-31 02:38:38,673 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 02:38:38" (1/1) ... [2023-03-31 02:38:38,688 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-03-31 02:38:38,689 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-03-31 02:38:38,689 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-03-31 02:38:38,689 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-03-31 02:38:38,690 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 02:38:38" (1/1) ... [2023-03-31 02:38:38,694 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-03-31 02:38:38,700 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-03-31 02:38:38,711 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) [2023-03-31 02:38:38,730 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 [2023-03-31 02:38:38,742 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2023-03-31 02:38:38,742 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-03-31 02:38:38,743 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~$Pointer$~TO~VOID [2023-03-31 02:38:38,743 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2023-03-31 02:38:38,743 INFO L138 BoogieDeclarations]: Found implementation of procedure PTR_ERR [2023-03-31 02:38:38,743 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2023-03-31 02:38:38,743 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_read [2023-03-31 02:38:38,743 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_set [2023-03-31 02:38:38,743 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_inc [2023-03-31 02:38:38,743 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2023-03-31 02:38:38,743 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2023-03-31 02:38:38,743 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2023-03-31 02:38:38,743 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2023-03-31 02:38:38,744 INFO L138 BoogieDeclarations]: Found implementation of procedure compat_ptr [2023-03-31 02:38:38,744 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-03-31 02:38:38,744 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2023-03-31 02:38:38,744 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2023-03-31 02:38:38,744 INFO L138 BoogieDeclarations]: Found implementation of procedure __kmalloc [2023-03-31 02:38:38,744 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2023-03-31 02:38:38,744 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2023-03-31 02:38:38,744 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_get_drvdata [2023-03-31 02:38:38,744 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_drvdata [2023-03-31 02:38:38,744 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_from_user [2023-03-31 02:38:38,744 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_to_user [2023-03-31 02:38:38,744 INFO L138 BoogieDeclarations]: Found implementation of procedure poll_wait [2023-03-31 02:38:38,744 INFO L138 BoogieDeclarations]: Found implementation of procedure request_irq [2023-03-31 02:38:38,744 INFO L138 BoogieDeclarations]: Found implementation of procedure phantom_status [2023-03-31 02:38:38,744 INFO L138 BoogieDeclarations]: Found implementation of procedure phantom_ioctl [2023-03-31 02:38:38,744 INFO L138 BoogieDeclarations]: Found implementation of procedure phantom_compat_ioctl [2023-03-31 02:38:38,744 INFO L138 BoogieDeclarations]: Found implementation of procedure phantom_open [2023-03-31 02:38:38,745 INFO L138 BoogieDeclarations]: Found implementation of procedure phantom_release [2023-03-31 02:38:38,745 INFO L138 BoogieDeclarations]: Found implementation of procedure phantom_poll [2023-03-31 02:38:38,745 INFO L138 BoogieDeclarations]: Found implementation of procedure phantom_isr [2023-03-31 02:38:38,745 INFO L138 BoogieDeclarations]: Found implementation of procedure phantom_get_free [2023-03-31 02:38:38,745 INFO L138 BoogieDeclarations]: Found implementation of procedure phantom_probe [2023-03-31 02:38:38,745 INFO L138 BoogieDeclarations]: Found implementation of procedure phantom_remove [2023-03-31 02:38:38,745 INFO L138 BoogieDeclarations]: Found implementation of procedure phantom_suspend [2023-03-31 02:38:38,745 INFO L138 BoogieDeclarations]: Found implementation of procedure phantom_resume [2023-03-31 02:38:38,745 INFO L138 BoogieDeclarations]: Found implementation of procedure phantom_init [2023-03-31 02:38:38,745 INFO L138 BoogieDeclarations]: Found implementation of procedure phantom_exit [2023-03-31 02:38:38,745 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2023-03-31 02:38:38,746 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_1 [2023-03-31 02:38:38,746 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_2 [2023-03-31 02:38:38,746 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_3 [2023-03-31 02:38:38,746 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_4 [2023-03-31 02:38:38,746 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_5 [2023-03-31 02:38:38,746 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_trylock_6 [2023-03-31 02:38:38,746 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_7 [2023-03-31 02:38:38,746 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_8 [2023-03-31 02:38:38,746 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_interruptible_9 [2023-03-31 02:38:38,746 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_10 [2023-03-31 02:38:38,746 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_11 [2023-03-31 02:38:38,746 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_12 [2023-03-31 02:38:38,746 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_13 [2023-03-31 02:38:38,747 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_14 [2023-03-31 02:38:38,747 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_15 [2023-03-31 02:38:38,747 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_16 [2023-03-31 02:38:38,747 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_cdev_init_17 [2023-03-31 02:38:38,747 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_cdev_del_18 [2023-03-31 02:38:38,747 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2023-03-31 02:38:38,748 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2023-03-31 02:38:38,748 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_trap [2023-03-31 02:38:38,748 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_interruptible_cred_guard_mutex_of_signal_struct [2023-03-31 02:38:38,748 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_killable_cred_guard_mutex_of_signal_struct [2023-03-31 02:38:38,748 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_cred_guard_mutex_of_signal_struct [2023-03-31 02:38:38,748 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_trylock_cred_guard_mutex_of_signal_struct [2023-03-31 02:38:38,749 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_dec_and_mutex_lock_cred_guard_mutex_of_signal_struct [2023-03-31 02:38:38,749 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_is_locked_cred_guard_mutex_of_signal_struct [2023-03-31 02:38:38,749 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_cred_guard_mutex_of_signal_struct [2023-03-31 02:38:38,749 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_interruptible_lock [2023-03-31 02:38:38,749 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_killable_lock [2023-03-31 02:38:38,749 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_lock [2023-03-31 02:38:38,749 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_trylock_lock [2023-03-31 02:38:38,749 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_dec_and_mutex_lock_lock [2023-03-31 02:38:38,749 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_is_locked_lock [2023-03-31 02:38:38,749 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_lock [2023-03-31 02:38:38,749 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_interruptible_mutex_of_device [2023-03-31 02:38:38,749 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_killable_mutex_of_device [2023-03-31 02:38:38,749 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_mutex_of_device [2023-03-31 02:38:38,749 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_trylock_mutex_of_device [2023-03-31 02:38:38,749 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_dec_and_mutex_lock_mutex_of_device [2023-03-31 02:38:38,749 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_is_locked_mutex_of_device [2023-03-31 02:38:38,749 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_mutex_of_device [2023-03-31 02:38:38,749 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_interruptible_open_lock_of_phantom_device [2023-03-31 02:38:38,750 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_killable_open_lock_of_phantom_device [2023-03-31 02:38:38,750 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_open_lock_of_phantom_device [2023-03-31 02:38:38,750 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_trylock_open_lock_of_phantom_device [2023-03-31 02:38:38,750 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_dec_and_mutex_lock_open_lock_of_phantom_device [2023-03-31 02:38:38,750 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_is_locked_open_lock_of_phantom_device [2023-03-31 02:38:38,750 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_open_lock_of_phantom_device [2023-03-31 02:38:38,750 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_interruptible_phantom_mutex [2023-03-31 02:38:38,750 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_killable_phantom_mutex [2023-03-31 02:38:38,751 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_phantom_mutex [2023-03-31 02:38:38,751 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_trylock_phantom_mutex [2023-03-31 02:38:38,751 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_dec_and_mutex_lock_phantom_mutex [2023-03-31 02:38:38,751 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_is_locked_phantom_mutex [2023-03-31 02:38:38,751 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_phantom_mutex [2023-03-31 02:38:38,751 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize [2023-03-31 02:38:38,751 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2023-03-31 02:38:38,751 INFO L138 BoogieDeclarations]: Found implementation of procedure __class_create [2023-03-31 02:38:38,751 INFO L138 BoogieDeclarations]: Found implementation of procedure __dynamic_pr_debug [2023-03-31 02:38:38,752 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_waitqueue_head [2023-03-31 02:38:38,752 INFO L138 BoogieDeclarations]: Found implementation of procedure __mutex_init [2023-03-31 02:38:38,752 INFO L138 BoogieDeclarations]: Found implementation of procedure __pci_register_driver [2023-03-31 02:38:38,752 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2023-03-31 02:38:38,752 INFO L138 BoogieDeclarations]: Found implementation of procedure __wake_up [2023-03-31 02:38:38,752 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_from_user [2023-03-31 02:38:38,752 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_to_user [2023-03-31 02:38:38,752 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock [2023-03-31 02:38:38,752 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock_irqsave [2023-03-31 02:38:38,752 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_unlock [2023-03-31 02:38:38,752 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_unlock_irqrestore [2023-03-31 02:38:38,753 INFO L138 BoogieDeclarations]: Found implementation of procedure alloc_chrdev_region [2023-03-31 02:38:38,753 INFO L138 BoogieDeclarations]: Found implementation of procedure cdev_add [2023-03-31 02:38:38,753 INFO L138 BoogieDeclarations]: Found implementation of procedure cdev_del [2023-03-31 02:38:38,753 INFO L138 BoogieDeclarations]: Found implementation of procedure cdev_init [2023-03-31 02:38:38,753 INFO L138 BoogieDeclarations]: Found implementation of procedure class_create_file [2023-03-31 02:38:38,753 INFO L138 BoogieDeclarations]: Found implementation of procedure class_destroy [2023-03-31 02:38:38,753 INFO L138 BoogieDeclarations]: Found implementation of procedure class_remove_file [2023-03-31 02:38:38,753 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_err [2023-03-31 02:38:38,753 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_get_drvdata [2023-03-31 02:38:38,753 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_set_drvdata [2023-03-31 02:38:38,753 INFO L138 BoogieDeclarations]: Found implementation of procedure device_create [2023-03-31 02:38:38,753 INFO L138 BoogieDeclarations]: Found implementation of procedure device_destroy [2023-03-31 02:38:38,754 INFO L138 BoogieDeclarations]: Found implementation of procedure free_irq [2023-03-31 02:38:38,754 INFO L138 BoogieDeclarations]: Found implementation of procedure ioread32 [2023-03-31 02:38:38,754 INFO L138 BoogieDeclarations]: Found implementation of procedure iowrite32 [2023-03-31 02:38:38,755 INFO L138 BoogieDeclarations]: Found implementation of procedure might_fault [2023-03-31 02:38:38,755 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock [2023-03-31 02:38:38,757 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_interruptible [2023-03-31 02:38:38,759 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_trylock [2023-03-31 02:38:38,760 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2023-03-31 02:38:38,760 INFO L138 BoogieDeclarations]: Found implementation of procedure no_llseek [2023-03-31 02:38:38,760 INFO L138 BoogieDeclarations]: Found implementation of procedure nonseekable_open [2023-03-31 02:38:38,760 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_device [2023-03-31 02:38:38,760 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_enable_device [2023-03-31 02:38:38,760 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_iomap [2023-03-31 02:38:38,760 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_iounmap [2023-03-31 02:38:38,760 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_release_regions [2023-03-31 02:38:38,760 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_request_regions [2023-03-31 02:38:38,760 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_unregister_driver [2023-03-31 02:38:38,760 INFO L138 BoogieDeclarations]: Found implementation of procedure printk [2023-03-31 02:38:38,760 INFO L138 BoogieDeclarations]: Found implementation of procedure request_threaded_irq [2023-03-31 02:38:38,760 INFO L138 BoogieDeclarations]: Found implementation of procedure show_class_attr_string [2023-03-31 02:38:38,760 INFO L138 BoogieDeclarations]: Found implementation of procedure synchronize_irq [2023-03-31 02:38:38,761 INFO L138 BoogieDeclarations]: Found implementation of procedure unregister_chrdev_region [2023-03-31 02:38:38,761 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_fmt [2023-03-31 02:38:38,761 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2023-03-31 02:38:38,761 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2023-03-31 02:38:38,761 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2023-03-31 02:38:38,761 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2023-03-31 02:38:38,761 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2023-03-31 02:38:38,761 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_perror_fail [2023-03-31 02:38:38,761 INFO L130 BoogieDeclarations]: Found specification of procedure __assert [2023-03-31 02:38:38,761 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2023-03-31 02:38:38,761 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-03-31 02:38:38,761 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2023-03-31 02:38:38,761 INFO L130 BoogieDeclarations]: Found specification of procedure printk [2023-03-31 02:38:38,761 INFO L130 BoogieDeclarations]: Found specification of procedure __dynamic_pr_debug [2023-03-31 02:38:38,762 INFO L130 BoogieDeclarations]: Found specification of procedure might_fault [2023-03-31 02:38:38,762 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy [2023-03-31 02:38:38,762 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_fmt [2023-03-31 02:38:38,762 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2023-03-31 02:38:38,762 INFO L130 BoogieDeclarations]: Found specification of procedure PTR_ERR [2023-03-31 02:38:38,762 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2023-03-31 02:38:38,762 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_read [2023-03-31 02:38:38,762 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-03-31 02:38:38,762 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_set [2023-03-31 02:38:38,763 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-03-31 02:38:38,763 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_inc [2023-03-31 02:38:38,763 INFO L130 BoogieDeclarations]: Found specification of procedure __mutex_init [2023-03-31 02:38:38,763 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_trylock [2023-03-31 02:38:38,763 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_trylock_6 [2023-03-31 02:38:38,763 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2023-03-31 02:38:38,763 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_2 [2023-03-31 02:38:38,763 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_4 [2023-03-31 02:38:38,763 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_7 [2023-03-31 02:38:38,763 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_10 [2023-03-31 02:38:38,763 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_11 [2023-03-31 02:38:38,763 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_12 [2023-03-31 02:38:38,763 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_13 [2023-03-31 02:38:38,763 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_14 [2023-03-31 02:38:38,764 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_16 [2023-03-31 02:38:38,764 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_interruptible [2023-03-31 02:38:38,764 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_interruptible_9 [2023-03-31 02:38:38,764 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock [2023-03-31 02:38:38,764 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_1 [2023-03-31 02:38:38,764 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_3 [2023-03-31 02:38:38,764 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_5 [2023-03-31 02:38:38,764 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_8 [2023-03-31 02:38:38,764 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_15 [2023-03-31 02:38:38,764 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_cred_guard_mutex_of_signal_struct [2023-03-31 02:38:38,764 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_cred_guard_mutex_of_signal_struct [2023-03-31 02:38:38,764 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_lock [2023-03-31 02:38:38,764 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_lock [2023-03-31 02:38:38,764 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_mutex_of_device [2023-03-31 02:38:38,764 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_trylock_mutex_of_device [2023-03-31 02:38:38,764 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_mutex_of_device [2023-03-31 02:38:38,765 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_interruptible_open_lock_of_phantom_device [2023-03-31 02:38:38,765 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_open_lock_of_phantom_device [2023-03-31 02:38:38,765 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_open_lock_of_phantom_device [2023-03-31 02:38:38,765 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_phantom_mutex [2023-03-31 02:38:38,765 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_phantom_mutex [2023-03-31 02:38:38,765 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2023-03-31 02:38:38,765 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2023-03-31 02:38:38,765 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock [2023-03-31 02:38:38,765 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock_irqsave [2023-03-31 02:38:38,765 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_unlock [2023-03-31 02:38:38,765 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_unlock_irqrestore [2023-03-31 02:38:38,765 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2023-03-31 02:38:38,765 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2023-03-31 02:38:38,765 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2023-03-31 02:38:38,765 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2023-03-31 02:38:38,765 INFO L130 BoogieDeclarations]: Found specification of procedure __init_waitqueue_head [2023-03-31 02:38:38,766 INFO L130 BoogieDeclarations]: Found specification of procedure __wake_up [2023-03-31 02:38:38,766 INFO L130 BoogieDeclarations]: Found specification of procedure ioread32 [2023-03-31 02:38:38,766 INFO L130 BoogieDeclarations]: Found specification of procedure iowrite32 [2023-03-31 02:38:38,766 INFO L130 BoogieDeclarations]: Found specification of procedure pci_iounmap [2023-03-31 02:38:38,766 INFO L130 BoogieDeclarations]: Found specification of procedure pci_iomap [2023-03-31 02:38:38,766 INFO L130 BoogieDeclarations]: Found specification of procedure alloc_chrdev_region [2023-03-31 02:38:38,766 INFO L130 BoogieDeclarations]: Found specification of procedure unregister_chrdev_region [2023-03-31 02:38:38,766 INFO L130 BoogieDeclarations]: Found specification of procedure no_llseek [2023-03-31 02:38:38,766 INFO L130 BoogieDeclarations]: Found specification of procedure nonseekable_open [2023-03-31 02:38:38,766 INFO L130 BoogieDeclarations]: Found specification of procedure compat_ptr [2023-03-31 02:38:38,766 INFO L130 BoogieDeclarations]: Found specification of procedure class_create_file [2023-03-31 02:38:38,766 INFO L130 BoogieDeclarations]: Found specification of procedure class_remove_file [2023-03-31 02:38:38,766 INFO L130 BoogieDeclarations]: Found specification of procedure show_class_attr_string [2023-03-31 02:38:38,766 INFO L130 BoogieDeclarations]: Found specification of procedure __class_create [2023-03-31 02:38:38,766 INFO L130 BoogieDeclarations]: Found specification of procedure class_destroy [2023-03-31 02:38:38,766 INFO L130 BoogieDeclarations]: Found specification of procedure dev_get_drvdata [2023-03-31 02:38:38,766 INFO L130 BoogieDeclarations]: Found specification of procedure dev_set_drvdata [2023-03-31 02:38:38,767 INFO L130 BoogieDeclarations]: Found specification of procedure device_create [2023-03-31 02:38:38,767 INFO L130 BoogieDeclarations]: Found specification of procedure device_destroy [2023-03-31 02:38:38,767 INFO L130 BoogieDeclarations]: Found specification of procedure dev_err [2023-03-31 02:38:38,767 INFO L130 BoogieDeclarations]: Found specification of procedure pci_enable_device [2023-03-31 02:38:38,767 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_device [2023-03-31 02:38:38,767 INFO L130 BoogieDeclarations]: Found specification of procedure pci_request_regions [2023-03-31 02:38:38,767 INFO L130 BoogieDeclarations]: Found specification of procedure pci_release_regions [2023-03-31 02:38:38,767 INFO L130 BoogieDeclarations]: Found specification of procedure __pci_register_driver [2023-03-31 02:38:38,767 INFO L130 BoogieDeclarations]: Found specification of procedure pci_unregister_driver [2023-03-31 02:38:38,767 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2023-03-31 02:38:38,767 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-03-31 02:38:38,767 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2023-03-31 02:38:38,767 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2023-03-31 02:38:38,767 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2023-03-31 02:38:38,767 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-03-31 02:38:38,767 INFO L130 BoogieDeclarations]: Found specification of procedure __kmalloc [2023-03-31 02:38:38,767 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2023-03-31 02:38:38,767 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2023-03-31 02:38:38,767 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2023-03-31 02:38:38,768 INFO L130 BoogieDeclarations]: Found specification of procedure pci_get_drvdata [2023-03-31 02:38:38,768 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_drvdata [2023-03-31 02:38:38,768 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_to_user [2023-03-31 02:38:38,768 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_from_user [2023-03-31 02:38:38,768 INFO L130 BoogieDeclarations]: Found specification of procedure copy_from_user [2023-03-31 02:38:38,768 INFO L130 BoogieDeclarations]: Found specification of procedure copy_to_user [2023-03-31 02:38:38,771 INFO L130 BoogieDeclarations]: Found specification of procedure poll_wait [2023-03-31 02:38:38,771 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~$Pointer$~TO~VOID [2023-03-31 02:38:38,772 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-03-31 02:38:38,773 INFO L130 BoogieDeclarations]: Found specification of procedure synchronize_irq [2023-03-31 02:38:38,773 INFO L130 BoogieDeclarations]: Found specification of procedure request_threaded_irq [2023-03-31 02:38:38,773 INFO L130 BoogieDeclarations]: Found specification of procedure request_irq [2023-03-31 02:38:38,773 INFO L130 BoogieDeclarations]: Found specification of procedure free_irq [2023-03-31 02:38:38,773 INFO L130 BoogieDeclarations]: Found specification of procedure cdev_init [2023-03-31 02:38:38,773 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_cdev_init_17 [2023-03-31 02:38:38,773 INFO L130 BoogieDeclarations]: Found specification of procedure cdev_add [2023-03-31 02:38:38,773 INFO L130 BoogieDeclarations]: Found specification of procedure cdev_del [2023-03-31 02:38:38,774 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_cdev_del_18 [2023-03-31 02:38:38,774 INFO L130 BoogieDeclarations]: Found specification of procedure phantom_status [2023-03-31 02:38:38,774 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-03-31 02:38:38,774 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-03-31 02:38:38,774 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-03-31 02:38:38,774 INFO L130 BoogieDeclarations]: Found specification of procedure phantom_ioctl [2023-03-31 02:38:38,774 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2023-03-31 02:38:38,774 INFO L130 BoogieDeclarations]: Found specification of procedure phantom_compat_ioctl [2023-03-31 02:38:38,774 INFO L130 BoogieDeclarations]: Found specification of procedure phantom_open [2023-03-31 02:38:38,774 INFO L130 BoogieDeclarations]: Found specification of procedure phantom_release [2023-03-31 02:38:38,774 INFO L130 BoogieDeclarations]: Found specification of procedure phantom_poll [2023-03-31 02:38:38,774 INFO L130 BoogieDeclarations]: Found specification of procedure phantom_isr [2023-03-31 02:38:38,774 INFO L130 BoogieDeclarations]: Found specification of procedure phantom_get_free [2023-03-31 02:38:38,774 INFO L130 BoogieDeclarations]: Found specification of procedure phantom_probe [2023-03-31 02:38:38,774 INFO L130 BoogieDeclarations]: Found specification of procedure phantom_remove [2023-03-31 02:38:38,774 INFO L130 BoogieDeclarations]: Found specification of procedure phantom_suspend [2023-03-31 02:38:38,774 INFO L130 BoogieDeclarations]: Found specification of procedure phantom_resume [2023-03-31 02:38:38,774 INFO L130 BoogieDeclarations]: Found specification of procedure phantom_init [2023-03-31 02:38:38,775 INFO L130 BoogieDeclarations]: Found specification of procedure phantom_exit [2023-03-31 02:38:38,775 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize [2023-03-31 02:38:38,775 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2023-03-31 02:38:38,775 INFO L130 BoogieDeclarations]: Found specification of procedure main [2023-03-31 02:38:38,775 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2023-03-31 02:38:38,775 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_trap [2023-03-31 02:38:38,775 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_interruptible_cred_guard_mutex_of_signal_struct [2023-03-31 02:38:38,775 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_killable_cred_guard_mutex_of_signal_struct [2023-03-31 02:38:38,775 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_trylock_cred_guard_mutex_of_signal_struct [2023-03-31 02:38:38,775 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_dec_and_mutex_lock_cred_guard_mutex_of_signal_struct [2023-03-31 02:38:38,775 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_is_locked_cred_guard_mutex_of_signal_struct [2023-03-31 02:38:38,775 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_interruptible_lock [2023-03-31 02:38:38,775 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_killable_lock [2023-03-31 02:38:38,775 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_trylock_lock [2023-03-31 02:38:38,775 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_dec_and_mutex_lock_lock [2023-03-31 02:38:38,775 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_is_locked_lock [2023-03-31 02:38:38,775 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_interruptible_mutex_of_device [2023-03-31 02:38:38,776 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_killable_mutex_of_device [2023-03-31 02:38:38,776 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_dec_and_mutex_lock_mutex_of_device [2023-03-31 02:38:38,776 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_is_locked_mutex_of_device [2023-03-31 02:38:38,776 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_killable_open_lock_of_phantom_device [2023-03-31 02:38:38,776 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_trylock_open_lock_of_phantom_device [2023-03-31 02:38:38,776 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_dec_and_mutex_lock_open_lock_of_phantom_device [2023-03-31 02:38:38,776 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_is_locked_open_lock_of_phantom_device [2023-03-31 02:38:38,776 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_interruptible_phantom_mutex [2023-03-31 02:38:38,776 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_killable_phantom_mutex [2023-03-31 02:38:38,776 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_trylock_phantom_mutex [2023-03-31 02:38:38,776 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_dec_and_mutex_lock_phantom_mutex [2023-03-31 02:38:38,776 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_is_locked_phantom_mutex [2023-03-31 02:38:38,776 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_ulong [2023-03-31 02:38:38,776 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uint [2023-03-31 02:38:38,776 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_long [2023-03-31 02:38:38,776 INFO L130 BoogieDeclarations]: Found specification of procedure free [2023-03-31 02:38:38,776 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2023-03-31 02:38:38,777 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-03-31 02:38:38,777 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2023-03-31 02:38:38,777 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-03-31 02:38:38,777 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2023-03-31 02:38:38,777 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2023-03-31 02:38:38,777 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2023-03-31 02:38:38,777 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2023-03-31 02:38:39,241 INFO L236 CfgBuilder]: Building ICFG [2023-03-31 02:38:39,245 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-03-31 02:38:40,593 INFO L277 CfgBuilder]: Performing block encoding [2023-03-31 02:38:40,610 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-03-31 02:38:40,610 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-03-31 02:38:40,614 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.03 02:38:40 BoogieIcfgContainer [2023-03-31 02:38:40,614 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-03-31 02:38:40,616 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-03-31 02:38:40,617 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-03-31 02:38:40,619 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-03-31 02:38:40,619 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 31.03 02:38:37" (1/3) ... [2023-03-31 02:38:40,620 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5eba96a2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.03 02:38:40, skipping insertion in model container [2023-03-31 02:38:40,620 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 02:38:38" (2/3) ... [2023-03-31 02:38:40,620 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5eba96a2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.03 02:38:40, skipping insertion in model container [2023-03-31 02:38:40,620 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.03 02:38:40" (3/3) ... [2023-03-31 02:38:40,621 INFO L112 eAbstractionObserver]: Analyzing ICFG 32_7a_cilled_linux-3.8-rc1-drivers--misc--phantom.ko-main.cil.out.i [2023-03-31 02:38:40,634 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-03-31 02:38:40,634 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-03-31 02:38:40,697 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-03-31 02:38:40,702 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=PETRI_NET, 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;@4a367513, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-03-31 02:38:40,702 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-03-31 02:38:40,710 INFO L276 IsEmpty]: Start isEmpty. Operand has 1069 states, 692 states have (on average 1.277456647398844) internal successors, (884), 713 states have internal predecessors, (884), 235 states have call successors, (235), 106 states have call predecessors, (235), 106 states have return successors, (235), 233 states have call predecessors, (235), 235 states have call successors, (235) [2023-03-31 02:38:40,719 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2023-03-31 02:38:40,720 INFO L187 NwaCegarLoop]: Found error trace [2023-03-31 02:38:40,720 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-03-31 02:38:40,720 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-03-31 02:38:40,724 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-03-31 02:38:40,724 INFO L85 PathProgramCache]: Analyzing trace with hash 640375730, now seen corresponding path program 1 times [2023-03-31 02:38:40,731 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-03-31 02:38:40,731 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1462925007] [2023-03-31 02:38:40,731 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-03-31 02:38:40,731 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-03-31 02:38:40,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 02:38:41,296 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-03-31 02:38:41,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 02:38:41,355 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-03-31 02:38:41,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 02:38:41,362 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-03-31 02:38:41,363 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-03-31 02:38:41,363 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1462925007] [2023-03-31 02:38:41,363 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1462925007] provided 1 perfect and 0 imperfect interpolant sequences [2023-03-31 02:38:41,363 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-03-31 02:38:41,363 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-03-31 02:38:41,365 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1001681148] [2023-03-31 02:38:41,365 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-03-31 02:38:41,367 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-03-31 02:38:41,368 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-03-31 02:38:41,385 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-03-31 02:38:41,385 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-03-31 02:38:41,388 INFO L87 Difference]: Start difference. First operand has 1069 states, 692 states have (on average 1.277456647398844) internal successors, (884), 713 states have internal predecessors, (884), 235 states have call successors, (235), 106 states have call predecessors, (235), 106 states have return successors, (235), 233 states have call predecessors, (235), 235 states have call successors, (235) Second operand has 5 states, 5 states have (on average 3.6) internal successors, (18), 3 states have internal predecessors, (18), 2 states have call successors, (7), 4 states have call predecessors, (7), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-03-31 02:38:47,615 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-03-31 02:38:47,615 INFO L93 Difference]: Finished difference Result 2197 states and 2925 transitions. [2023-03-31 02:38:47,617 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-03-31 02:38:47,618 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 3.6) internal successors, (18), 3 states have internal predecessors, (18), 2 states have call successors, (7), 4 states have call predecessors, (7), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 27 [2023-03-31 02:38:47,618 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-03-31 02:38:47,632 INFO L225 Difference]: With dead ends: 2197 [2023-03-31 02:38:47,632 INFO L226 Difference]: Without dead ends: 1289 [2023-03-31 02:38:47,638 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2023-03-31 02:38:47,640 INFO L413 NwaCegarLoop]: 246 mSDtfsCounter, 1932 mSDsluCounter, 308 mSDsCounter, 0 mSdLazyCounter, 2097 mSolverCounterSat, 929 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2090 SdHoareTripleChecker+Valid, 554 SdHoareTripleChecker+Invalid, 3026 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 929 IncrementalHoareTripleChecker+Valid, 2097 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.3s IncrementalHoareTripleChecker+Time [2023-03-31 02:38:47,640 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2090 Valid, 554 Invalid, 3026 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [929 Valid, 2097 Invalid, 0 Unknown, 0 Unchecked, 5.3s Time] [2023-03-31 02:38:47,657 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1289 states. [2023-03-31 02:38:47,998 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1289 to 1254. [2023-03-31 02:38:48,001 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1254 states, 805 states have (on average 1.2546583850931676) internal successors, (1010), 834 states have internal predecessors, (1010), 302 states have call successors, (302), 148 states have call predecessors, (302), 146 states have return successors, (292), 284 states have call predecessors, (292), 290 states have call successors, (292) [2023-03-31 02:38:48,017 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1254 states to 1254 states and 1604 transitions. [2023-03-31 02:38:48,019 INFO L78 Accepts]: Start accepts. Automaton has 1254 states and 1604 transitions. Word has length 27 [2023-03-31 02:38:48,019 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-03-31 02:38:48,019 INFO L495 AbstractCegarLoop]: Abstraction has 1254 states and 1604 transitions. [2023-03-31 02:38:48,019 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 3.6) internal successors, (18), 3 states have internal predecessors, (18), 2 states have call successors, (7), 4 states have call predecessors, (7), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-03-31 02:38:48,020 INFO L276 IsEmpty]: Start isEmpty. Operand 1254 states and 1604 transitions. [2023-03-31 02:38:48,022 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2023-03-31 02:38:48,022 INFO L187 NwaCegarLoop]: Found error trace [2023-03-31 02:38:48,022 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-03-31 02:38:48,022 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-03-31 02:38:48,023 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-03-31 02:38:48,023 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-03-31 02:38:48,023 INFO L85 PathProgramCache]: Analyzing trace with hash 1956443750, now seen corresponding path program 1 times [2023-03-31 02:38:48,023 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-03-31 02:38:48,023 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2095977553] [2023-03-31 02:38:48,023 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-03-31 02:38:48,023 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-03-31 02:38:48,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 02:38:48,365 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-03-31 02:38:48,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 02:38:48,398 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-03-31 02:38:48,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 02:38:48,425 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-03-31 02:38:48,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 02:38:48,441 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-03-31 02:38:48,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 02:38:48,444 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-03-31 02:38:48,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 02:38:48,460 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-03-31 02:38:48,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 02:38:48,463 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-03-31 02:38:48,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 02:38:48,465 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-03-31 02:38:48,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 02:38:48,468 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-03-31 02:38:48,468 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-03-31 02:38:48,468 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2095977553] [2023-03-31 02:38:48,468 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2095977553] provided 1 perfect and 0 imperfect interpolant sequences [2023-03-31 02:38:48,468 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-03-31 02:38:48,469 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-03-31 02:38:48,469 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1976298156] [2023-03-31 02:38:48,469 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-03-31 02:38:48,470 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-03-31 02:38:48,470 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-03-31 02:38:48,470 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-03-31 02:38:48,470 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-03-31 02:38:48,470 INFO L87 Difference]: Start difference. First operand 1254 states and 1604 transitions. Second operand has 6 states, 6 states have (on average 5.166666666666667) internal successors, (31), 3 states have internal predecessors, (31), 2 states have call successors, (11), 5 states have call predecessors, (11), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-03-31 02:38:57,675 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-03-31 02:38:57,675 INFO L93 Difference]: Finished difference Result 3865 states and 5003 transitions. [2023-03-31 02:38:57,676 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-03-31 02:38:57,676 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 5.166666666666667) internal successors, (31), 3 states have internal predecessors, (31), 2 states have call successors, (11), 5 states have call predecessors, (11), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 50 [2023-03-31 02:38:57,676 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-03-31 02:38:57,687 INFO L225 Difference]: With dead ends: 3865 [2023-03-31 02:38:57,688 INFO L226 Difference]: Without dead ends: 2622 [2023-03-31 02:38:57,691 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=54, Invalid=102, Unknown=0, NotChecked=0, Total=156 [2023-03-31 02:38:57,691 INFO L413 NwaCegarLoop]: 160 mSDtfsCounter, 3657 mSDsluCounter, 380 mSDsCounter, 0 mSdLazyCounter, 2810 mSolverCounterSat, 2223 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3816 SdHoareTripleChecker+Valid, 540 SdHoareTripleChecker+Invalid, 5033 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2223 IncrementalHoareTripleChecker+Valid, 2810 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.8s IncrementalHoareTripleChecker+Time [2023-03-31 02:38:57,692 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3816 Valid, 540 Invalid, 5033 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2223 Valid, 2810 Invalid, 0 Unknown, 0 Unchecked, 7.8s Time] [2023-03-31 02:38:57,696 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2622 states. [2023-03-31 02:38:58,228 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2622 to 2321. [2023-03-31 02:38:58,232 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2321 states, 1506 states have (on average 1.2576361221779548) internal successors, (1894), 1550 states have internal predecessors, (1894), 543 states have call successors, (543), 272 states have call predecessors, (543), 271 states have return successors, (535), 520 states have call predecessors, (535), 531 states have call successors, (535) [2023-03-31 02:38:58,240 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2321 states to 2321 states and 2972 transitions. [2023-03-31 02:38:58,241 INFO L78 Accepts]: Start accepts. Automaton has 2321 states and 2972 transitions. Word has length 50 [2023-03-31 02:38:58,241 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-03-31 02:38:58,241 INFO L495 AbstractCegarLoop]: Abstraction has 2321 states and 2972 transitions. [2023-03-31 02:38:58,241 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 5.166666666666667) internal successors, (31), 3 states have internal predecessors, (31), 2 states have call successors, (11), 5 states have call predecessors, (11), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-03-31 02:38:58,241 INFO L276 IsEmpty]: Start isEmpty. Operand 2321 states and 2972 transitions. [2023-03-31 02:38:58,243 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2023-03-31 02:38:58,243 INFO L187 NwaCegarLoop]: Found error trace [2023-03-31 02:38:58,243 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-03-31 02:38:58,243 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-03-31 02:38:58,244 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-03-31 02:38:58,244 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-03-31 02:38:58,244 INFO L85 PathProgramCache]: Analyzing trace with hash -1993096707, now seen corresponding path program 1 times [2023-03-31 02:38:58,244 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-03-31 02:38:58,244 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [545328022] [2023-03-31 02:38:58,244 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-03-31 02:38:58,244 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-03-31 02:38:58,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 02:38:58,627 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-03-31 02:38:58,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 02:38:58,669 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-03-31 02:38:58,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 02:38:58,680 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-03-31 02:38:58,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 02:38:58,759 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-03-31 02:38:58,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 02:38:58,765 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-03-31 02:38:58,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 02:38:58,769 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-03-31 02:38:58,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 02:38:58,878 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-03-31 02:38:58,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 02:38:58,898 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2023-03-31 02:38:58,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 02:38:58,902 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-03-31 02:38:58,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 02:38:58,908 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-03-31 02:38:58,908 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-03-31 02:38:58,909 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [545328022] [2023-03-31 02:38:58,910 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [545328022] provided 1 perfect and 0 imperfect interpolant sequences [2023-03-31 02:38:58,910 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-03-31 02:38:58,910 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2023-03-31 02:38:58,910 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [266102268] [2023-03-31 02:38:58,910 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-03-31 02:38:58,911 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-03-31 02:38:58,911 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-03-31 02:38:58,911 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-03-31 02:38:58,912 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2023-03-31 02:38:58,912 INFO L87 Difference]: Start difference. First operand 2321 states and 2972 transitions. Second operand has 11 states, 11 states have (on average 3.727272727272727) internal successors, (41), 5 states have internal predecessors, (41), 2 states have call successors, (12), 6 states have call predecessors, (12), 4 states have return successors, (9), 4 states have call predecessors, (9), 2 states have call successors, (9) [2023-03-31 02:39:06,717 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-03-31 02:39:06,718 INFO L93 Difference]: Finished difference Result 4899 states and 6325 transitions. [2023-03-31 02:39:06,718 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-03-31 02:39:06,719 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 3.727272727272727) internal successors, (41), 5 states have internal predecessors, (41), 2 states have call successors, (12), 6 states have call predecessors, (12), 4 states have return successors, (9), 4 states have call predecessors, (9), 2 states have call successors, (9) Word has length 62 [2023-03-31 02:39:06,719 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-03-31 02:39:06,731 INFO L225 Difference]: With dead ends: 4899 [2023-03-31 02:39:06,731 INFO L226 Difference]: Without dead ends: 2589 [2023-03-31 02:39:06,736 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=68, Invalid=238, Unknown=0, NotChecked=0, Total=306 [2023-03-31 02:39:06,737 INFO L413 NwaCegarLoop]: 159 mSDtfsCounter, 1447 mSDsluCounter, 973 mSDsCounter, 0 mSdLazyCounter, 6991 mSolverCounterSat, 841 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1590 SdHoareTripleChecker+Valid, 1132 SdHoareTripleChecker+Invalid, 7832 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 841 IncrementalHoareTripleChecker+Valid, 6991 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.3s IncrementalHoareTripleChecker+Time [2023-03-31 02:39:06,737 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1590 Valid, 1132 Invalid, 7832 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [841 Valid, 6991 Invalid, 0 Unknown, 0 Unchecked, 6.3s Time] [2023-03-31 02:39:06,739 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2589 states. [2023-03-31 02:39:07,263 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2589 to 2307. [2023-03-31 02:39:07,266 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2307 states, 1498 states have (on average 1.2576769025367156) internal successors, (1884), 1540 states have internal predecessors, (1884), 539 states have call successors, (539), 270 states have call predecessors, (539), 269 states have return successors, (531), 516 states have call predecessors, (531), 527 states have call successors, (531) [2023-03-31 02:39:07,274 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2307 states to 2307 states and 2954 transitions. [2023-03-31 02:39:07,274 INFO L78 Accepts]: Start accepts. Automaton has 2307 states and 2954 transitions. Word has length 62 [2023-03-31 02:39:07,275 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-03-31 02:39:07,275 INFO L495 AbstractCegarLoop]: Abstraction has 2307 states and 2954 transitions. [2023-03-31 02:39:07,275 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 3.727272727272727) internal successors, (41), 5 states have internal predecessors, (41), 2 states have call successors, (12), 6 states have call predecessors, (12), 4 states have return successors, (9), 4 states have call predecessors, (9), 2 states have call successors, (9) [2023-03-31 02:39:07,275 INFO L276 IsEmpty]: Start isEmpty. Operand 2307 states and 2954 transitions. [2023-03-31 02:39:07,278 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2023-03-31 02:39:07,278 INFO L187 NwaCegarLoop]: Found error trace [2023-03-31 02:39:07,279 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-03-31 02:39:07,279 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-03-31 02:39:07,279 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-03-31 02:39:07,279 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-03-31 02:39:07,279 INFO L85 PathProgramCache]: Analyzing trace with hash 1045259530, now seen corresponding path program 1 times [2023-03-31 02:39:07,279 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-03-31 02:39:07,279 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2034302478] [2023-03-31 02:39:07,280 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-03-31 02:39:07,280 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-03-31 02:39:07,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 02:39:07,574 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-03-31 02:39:07,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 02:39:07,607 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-03-31 02:39:07,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 02:39:07,620 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-03-31 02:39:07,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 02:39:07,637 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-03-31 02:39:07,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 02:39:07,642 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-03-31 02:39:07,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 02:39:07,645 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-03-31 02:39:07,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 02:39:07,648 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-03-31 02:39:07,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 02:39:07,651 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2023-03-31 02:39:07,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 02:39:07,653 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2023-03-31 02:39:07,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 02:39:07,656 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-03-31 02:39:07,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 02:39:07,658 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-03-31 02:39:07,659 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-03-31 02:39:07,659 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2034302478] [2023-03-31 02:39:07,659 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2034302478] provided 1 perfect and 0 imperfect interpolant sequences [2023-03-31 02:39:07,659 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-03-31 02:39:07,659 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-03-31 02:39:07,659 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2010696732] [2023-03-31 02:39:07,659 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-03-31 02:39:07,660 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-03-31 02:39:07,660 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-03-31 02:39:07,660 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-03-31 02:39:07,660 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2023-03-31 02:39:07,660 INFO L87 Difference]: Start difference. First operand 2307 states and 2954 transitions. Second operand has 7 states, 7 states have (on average 6.285714285714286) internal successors, (44), 3 states have internal predecessors, (44), 2 states have call successors, (13), 6 states have call predecessors, (13), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) [2023-03-31 02:39:14,058 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-03-31 02:39:14,059 INFO L93 Difference]: Finished difference Result 2615 states and 3391 transitions. [2023-03-31 02:39:14,059 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-03-31 02:39:14,059 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 6.285714285714286) internal successors, (44), 3 states have internal predecessors, (44), 2 states have call successors, (13), 6 states have call predecessors, (13), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) Word has length 67 [2023-03-31 02:39:14,060 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-03-31 02:39:14,068 INFO L225 Difference]: With dead ends: 2615 [2023-03-31 02:39:14,068 INFO L226 Difference]: Without dead ends: 2602 [2023-03-31 02:39:14,070 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=61, Invalid=121, Unknown=0, NotChecked=0, Total=182 [2023-03-31 02:39:14,078 INFO L413 NwaCegarLoop]: 150 mSDtfsCounter, 1821 mSDsluCounter, 358 mSDsCounter, 0 mSdLazyCounter, 2491 mSolverCounterSat, 1198 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1839 SdHoareTripleChecker+Valid, 508 SdHoareTripleChecker+Invalid, 3689 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1198 IncrementalHoareTripleChecker+Valid, 2491 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.0s IncrementalHoareTripleChecker+Time [2023-03-31 02:39:14,080 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1839 Valid, 508 Invalid, 3689 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1198 Valid, 2491 Invalid, 0 Unknown, 0 Unchecked, 5.0s Time] [2023-03-31 02:39:14,084 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2602 states. [2023-03-31 02:39:14,587 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2602 to 2307. [2023-03-31 02:39:14,591 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2307 states, 1498 states have (on average 1.2563417890520694) internal successors, (1882), 1540 states have internal predecessors, (1882), 539 states have call successors, (539), 270 states have call predecessors, (539), 269 states have return successors, (531), 516 states have call predecessors, (531), 527 states have call successors, (531) [2023-03-31 02:39:14,606 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2307 states to 2307 states and 2952 transitions. [2023-03-31 02:39:14,607 INFO L78 Accepts]: Start accepts. Automaton has 2307 states and 2952 transitions. Word has length 67 [2023-03-31 02:39:14,608 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-03-31 02:39:14,608 INFO L495 AbstractCegarLoop]: Abstraction has 2307 states and 2952 transitions. [2023-03-31 02:39:14,608 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 6.285714285714286) internal successors, (44), 3 states have internal predecessors, (44), 2 states have call successors, (13), 6 states have call predecessors, (13), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) [2023-03-31 02:39:14,608 INFO L276 IsEmpty]: Start isEmpty. Operand 2307 states and 2952 transitions. [2023-03-31 02:39:14,610 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2023-03-31 02:39:14,611 INFO L187 NwaCegarLoop]: Found error trace [2023-03-31 02:39:14,611 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-03-31 02:39:14,611 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-03-31 02:39:14,611 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-03-31 02:39:14,611 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-03-31 02:39:14,612 INFO L85 PathProgramCache]: Analyzing trace with hash 1102517832, now seen corresponding path program 1 times [2023-03-31 02:39:14,612 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-03-31 02:39:14,612 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1470859368] [2023-03-31 02:39:14,612 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-03-31 02:39:14,612 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-03-31 02:39:14,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 02:39:14,904 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-03-31 02:39:14,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 02:39:14,935 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-03-31 02:39:14,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 02:39:14,950 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-03-31 02:39:14,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 02:39:14,970 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-03-31 02:39:14,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 02:39:14,974 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-03-31 02:39:14,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 02:39:14,977 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-03-31 02:39:14,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 02:39:14,979 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-03-31 02:39:14,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 02:39:14,981 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2023-03-31 02:39:14,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 02:39:14,984 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2023-03-31 02:39:14,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 02:39:14,986 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-03-31 02:39:14,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 02:39:14,988 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-03-31 02:39:14,988 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-03-31 02:39:14,988 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1470859368] [2023-03-31 02:39:14,988 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1470859368] provided 1 perfect and 0 imperfect interpolant sequences [2023-03-31 02:39:14,988 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-03-31 02:39:14,988 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-03-31 02:39:14,988 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [974141194] [2023-03-31 02:39:14,988 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-03-31 02:39:14,989 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-03-31 02:39:14,989 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-03-31 02:39:14,989 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-03-31 02:39:14,989 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2023-03-31 02:39:14,989 INFO L87 Difference]: Start difference. First operand 2307 states and 2952 transitions. Second operand has 7 states, 7 states have (on average 6.285714285714286) internal successors, (44), 3 states have internal predecessors, (44), 3 states have call successors, (13), 7 states have call predecessors, (13), 2 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2023-03-31 02:39:20,581 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-03-31 02:39:20,581 INFO L93 Difference]: Finished difference Result 2591 states and 3358 transitions. [2023-03-31 02:39:20,581 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-03-31 02:39:20,581 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 6.285714285714286) internal successors, (44), 3 states have internal predecessors, (44), 3 states have call successors, (13), 7 states have call predecessors, (13), 2 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 67 [2023-03-31 02:39:20,582 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-03-31 02:39:20,590 INFO L225 Difference]: With dead ends: 2591 [2023-03-31 02:39:20,590 INFO L226 Difference]: Without dead ends: 2588 [2023-03-31 02:39:20,591 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=54, Invalid=102, Unknown=0, NotChecked=0, Total=156 [2023-03-31 02:39:20,592 INFO L413 NwaCegarLoop]: 149 mSDtfsCounter, 2693 mSDsluCounter, 244 mSDsCounter, 0 mSdLazyCounter, 1731 mSolverCounterSat, 1881 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2710 SdHoareTripleChecker+Valid, 393 SdHoareTripleChecker+Invalid, 3612 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1881 IncrementalHoareTripleChecker+Valid, 1731 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.4s IncrementalHoareTripleChecker+Time [2023-03-31 02:39:20,592 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2710 Valid, 393 Invalid, 3612 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1881 Valid, 1731 Invalid, 0 Unknown, 0 Unchecked, 4.4s Time] [2023-03-31 02:39:20,594 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2588 states. [2023-03-31 02:39:21,115 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2588 to 2306. [2023-03-31 02:39:21,118 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2306 states, 1498 states have (on average 1.2556742323097463) internal successors, (1881), 1539 states have internal predecessors, (1881), 538 states have call successors, (538), 270 states have call predecessors, (538), 269 states have return successors, (531), 516 states have call predecessors, (531), 527 states have call successors, (531) [2023-03-31 02:39:21,125 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2306 states to 2306 states and 2950 transitions. [2023-03-31 02:39:21,125 INFO L78 Accepts]: Start accepts. Automaton has 2306 states and 2950 transitions. Word has length 67 [2023-03-31 02:39:21,126 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-03-31 02:39:21,126 INFO L495 AbstractCegarLoop]: Abstraction has 2306 states and 2950 transitions. [2023-03-31 02:39:21,127 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 6.285714285714286) internal successors, (44), 3 states have internal predecessors, (44), 3 states have call successors, (13), 7 states have call predecessors, (13), 2 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2023-03-31 02:39:21,127 INFO L276 IsEmpty]: Start isEmpty. Operand 2306 states and 2950 transitions. [2023-03-31 02:39:21,128 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2023-03-31 02:39:21,128 INFO L187 NwaCegarLoop]: Found error trace [2023-03-31 02:39:21,128 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-03-31 02:39:21,128 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-03-31 02:39:21,128 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-03-31 02:39:21,129 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-03-31 02:39:21,129 INFO L85 PathProgramCache]: Analyzing trace with hash -182552348, now seen corresponding path program 1 times [2023-03-31 02:39:21,129 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-03-31 02:39:21,129 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2027373340] [2023-03-31 02:39:21,129 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-03-31 02:39:21,129 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-03-31 02:39:21,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 02:39:21,392 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-03-31 02:39:21,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 02:39:21,438 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-03-31 02:39:21,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 02:39:21,454 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-03-31 02:39:21,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 02:39:21,478 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-03-31 02:39:21,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 02:39:21,484 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-03-31 02:39:21,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 02:39:21,487 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-03-31 02:39:21,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 02:39:21,490 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-03-31 02:39:21,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 02:39:21,493 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2023-03-31 02:39:21,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 02:39:21,501 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2023-03-31 02:39:21,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 02:39:21,504 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-03-31 02:39:21,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 02:39:21,506 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-03-31 02:39:21,506 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-03-31 02:39:21,506 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2027373340] [2023-03-31 02:39:21,506 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2027373340] provided 1 perfect and 0 imperfect interpolant sequences [2023-03-31 02:39:21,506 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-03-31 02:39:21,506 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-03-31 02:39:21,507 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [352930823] [2023-03-31 02:39:21,507 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-03-31 02:39:21,507 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-03-31 02:39:21,507 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-03-31 02:39:21,507 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-03-31 02:39:21,508 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2023-03-31 02:39:21,508 INFO L87 Difference]: Start difference. First operand 2306 states and 2950 transitions. Second operand has 7 states, 7 states have (on average 6.428571428571429) internal successors, (45), 3 states have internal predecessors, (45), 3 states have call successors, (13), 7 states have call predecessors, (13), 2 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2023-03-31 02:39:27,569 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-03-31 02:39:27,570 INFO L93 Difference]: Finished difference Result 2590 states and 3356 transitions. [2023-03-31 02:39:27,570 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-03-31 02:39:27,570 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 6.428571428571429) internal successors, (45), 3 states have internal predecessors, (45), 3 states have call successors, (13), 7 states have call predecessors, (13), 2 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 68 [2023-03-31 02:39:27,571 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-03-31 02:39:27,580 INFO L225 Difference]: With dead ends: 2590 [2023-03-31 02:39:27,581 INFO L226 Difference]: Without dead ends: 2587 [2023-03-31 02:39:27,582 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=54, Invalid=102, Unknown=0, NotChecked=0, Total=156 [2023-03-31 02:39:27,582 INFO L413 NwaCegarLoop]: 149 mSDtfsCounter, 1794 mSDsluCounter, 360 mSDsCounter, 0 mSdLazyCounter, 2452 mSolverCounterSat, 1187 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1811 SdHoareTripleChecker+Valid, 509 SdHoareTripleChecker+Invalid, 3639 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1187 IncrementalHoareTripleChecker+Valid, 2452 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.9s IncrementalHoareTripleChecker+Time [2023-03-31 02:39:27,582 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1811 Valid, 509 Invalid, 3639 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1187 Valid, 2452 Invalid, 0 Unknown, 0 Unchecked, 4.9s Time] [2023-03-31 02:39:27,591 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2587 states. [2023-03-31 02:39:28,121 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2587 to 2305. [2023-03-31 02:39:28,124 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2305 states, 1498 states have (on average 1.2550066755674232) internal successors, (1880), 1538 states have internal predecessors, (1880), 537 states have call successors, (537), 270 states have call predecessors, (537), 269 states have return successors, (531), 516 states have call predecessors, (531), 527 states have call successors, (531) [2023-03-31 02:39:28,130 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2305 states to 2305 states and 2948 transitions. [2023-03-31 02:39:28,130 INFO L78 Accepts]: Start accepts. Automaton has 2305 states and 2948 transitions. Word has length 68 [2023-03-31 02:39:28,130 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-03-31 02:39:28,130 INFO L495 AbstractCegarLoop]: Abstraction has 2305 states and 2948 transitions. [2023-03-31 02:39:28,131 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 6.428571428571429) internal successors, (45), 3 states have internal predecessors, (45), 3 states have call successors, (13), 7 states have call predecessors, (13), 2 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2023-03-31 02:39:28,131 INFO L276 IsEmpty]: Start isEmpty. Operand 2305 states and 2948 transitions. [2023-03-31 02:39:28,132 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2023-03-31 02:39:28,132 INFO L187 NwaCegarLoop]: Found error trace [2023-03-31 02:39:28,132 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-03-31 02:39:28,132 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-03-31 02:39:28,132 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-03-31 02:39:28,132 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-03-31 02:39:28,132 INFO L85 PathProgramCache]: Analyzing trace with hash -1365017397, now seen corresponding path program 1 times [2023-03-31 02:39:28,132 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-03-31 02:39:28,133 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1183001970] [2023-03-31 02:39:28,133 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-03-31 02:39:28,133 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-03-31 02:39:28,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 02:39:28,374 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-03-31 02:39:28,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 02:39:28,405 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-03-31 02:39:28,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 02:39:28,419 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-03-31 02:39:28,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 02:39:28,446 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-03-31 02:39:28,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 02:39:28,451 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-03-31 02:39:28,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 02:39:28,458 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-03-31 02:39:28,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 02:39:28,463 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-03-31 02:39:28,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 02:39:28,466 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2023-03-31 02:39:28,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 02:39:28,470 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2023-03-31 02:39:28,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 02:39:28,473 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-03-31 02:39:28,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 02:39:28,477 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-03-31 02:39:28,477 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-03-31 02:39:28,477 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1183001970] [2023-03-31 02:39:28,477 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1183001970] provided 1 perfect and 0 imperfect interpolant sequences [2023-03-31 02:39:28,478 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-03-31 02:39:28,478 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-03-31 02:39:28,478 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1075898028] [2023-03-31 02:39:28,478 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-03-31 02:39:28,478 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-03-31 02:39:28,478 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-03-31 02:39:28,479 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-03-31 02:39:28,479 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2023-03-31 02:39:28,479 INFO L87 Difference]: Start difference. First operand 2305 states and 2948 transitions. Second operand has 7 states, 7 states have (on average 6.571428571428571) internal successors, (46), 3 states have internal predecessors, (46), 3 states have call successors, (13), 7 states have call predecessors, (13), 2 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2023-03-31 02:39:34,104 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-03-31 02:39:34,104 INFO L93 Difference]: Finished difference Result 2589 states and 3354 transitions. [2023-03-31 02:39:34,105 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-03-31 02:39:34,105 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 6.571428571428571) internal successors, (46), 3 states have internal predecessors, (46), 3 states have call successors, (13), 7 states have call predecessors, (13), 2 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 69 [2023-03-31 02:39:34,105 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-03-31 02:39:34,115 INFO L225 Difference]: With dead ends: 2589 [2023-03-31 02:39:34,115 INFO L226 Difference]: Without dead ends: 2586 [2023-03-31 02:39:34,116 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=54, Invalid=102, Unknown=0, NotChecked=0, Total=156 [2023-03-31 02:39:34,116 INFO L413 NwaCegarLoop]: 152 mSDtfsCounter, 2678 mSDsluCounter, 247 mSDsCounter, 0 mSdLazyCounter, 1731 mSolverCounterSat, 1867 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2695 SdHoareTripleChecker+Valid, 399 SdHoareTripleChecker+Invalid, 3598 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1867 IncrementalHoareTripleChecker+Valid, 1731 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.3s IncrementalHoareTripleChecker+Time [2023-03-31 02:39:34,117 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2695 Valid, 399 Invalid, 3598 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1867 Valid, 1731 Invalid, 0 Unknown, 0 Unchecked, 4.3s Time] [2023-03-31 02:39:34,119 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2586 states. [2023-03-31 02:39:34,682 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2586 to 2304. [2023-03-31 02:39:34,685 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2304 states, 1498 states have (on average 1.2543391188251) internal successors, (1879), 1537 states have internal predecessors, (1879), 536 states have call successors, (536), 270 states have call predecessors, (536), 269 states have return successors, (531), 516 states have call predecessors, (531), 527 states have call successors, (531) [2023-03-31 02:39:34,691 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2304 states to 2304 states and 2946 transitions. [2023-03-31 02:39:34,691 INFO L78 Accepts]: Start accepts. Automaton has 2304 states and 2946 transitions. Word has length 69 [2023-03-31 02:39:34,691 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-03-31 02:39:34,691 INFO L495 AbstractCegarLoop]: Abstraction has 2304 states and 2946 transitions. [2023-03-31 02:39:34,692 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 6.571428571428571) internal successors, (46), 3 states have internal predecessors, (46), 3 states have call successors, (13), 7 states have call predecessors, (13), 2 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2023-03-31 02:39:34,692 INFO L276 IsEmpty]: Start isEmpty. Operand 2304 states and 2946 transitions. [2023-03-31 02:39:34,693 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2023-03-31 02:39:34,693 INFO L187 NwaCegarLoop]: Found error trace [2023-03-31 02:39:34,693 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-03-31 02:39:34,693 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-03-31 02:39:34,693 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-03-31 02:39:34,693 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-03-31 02:39:34,694 INFO L85 PathProgramCache]: Analyzing trace with hash 633276615, now seen corresponding path program 1 times [2023-03-31 02:39:34,694 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-03-31 02:39:34,694 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [955721599] [2023-03-31 02:39:34,694 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-03-31 02:39:34,694 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-03-31 02:39:34,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 02:39:34,958 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-03-31 02:39:34,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 02:39:34,996 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-03-31 02:39:34,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 02:39:35,012 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-03-31 02:39:35,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 02:39:35,035 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-03-31 02:39:35,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 02:39:35,039 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-03-31 02:39:35,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 02:39:35,043 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-03-31 02:39:35,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 02:39:35,050 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-03-31 02:39:35,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 02:39:35,052 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2023-03-31 02:39:35,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 02:39:35,055 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2023-03-31 02:39:35,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 02:39:35,058 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-03-31 02:39:35,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 02:39:35,061 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-03-31 02:39:35,061 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-03-31 02:39:35,061 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [955721599] [2023-03-31 02:39:35,061 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [955721599] provided 1 perfect and 0 imperfect interpolant sequences [2023-03-31 02:39:35,061 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-03-31 02:39:35,062 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-03-31 02:39:35,062 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1928813848] [2023-03-31 02:39:35,062 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-03-31 02:39:35,063 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-03-31 02:39:35,063 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-03-31 02:39:35,063 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-03-31 02:39:35,063 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2023-03-31 02:39:35,063 INFO L87 Difference]: Start difference. First operand 2304 states and 2946 transitions. Second operand has 7 states, 7 states have (on average 6.714285714285714) internal successors, (47), 3 states have internal predecessors, (47), 3 states have call successors, (13), 7 states have call predecessors, (13), 2 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10)