/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--isdn--mISDN--l1oip.ko-main.cil.out.i -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-f954360 [2023-04-02 08:13:50,470 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-04-02 08:13:50,472 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-04-02 08:13:50,504 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-04-02 08:13:50,505 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-04-02 08:13:50,507 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-04-02 08:13:50,510 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-04-02 08:13:50,512 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-04-02 08:13:50,513 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-04-02 08:13:50,516 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-04-02 08:13:50,518 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-04-02 08:13:50,519 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-04-02 08:13:50,519 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-04-02 08:13:50,521 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-04-02 08:13:50,521 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-04-02 08:13:50,522 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-04-02 08:13:50,523 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-04-02 08:13:50,523 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-04-02 08:13:50,524 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-04-02 08:13:50,528 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-04-02 08:13:50,529 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-04-02 08:13:50,529 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-04-02 08:13:50,530 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-04-02 08:13:50,531 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-04-02 08:13:50,537 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-04-02 08:13:50,537 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-04-02 08:13:50,537 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-04-02 08:13:50,538 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-04-02 08:13:50,538 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-04-02 08:13:50,539 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-04-02 08:13:50,539 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-04-02 08:13:50,539 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-04-02 08:13:50,540 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-04-02 08:13:50,541 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-04-02 08:13:50,541 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-04-02 08:13:50,541 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-04-02 08:13:50,542 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-04-02 08:13:50,542 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-04-02 08:13:50,542 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-04-02 08:13:50,543 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-04-02 08:13:50,543 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-04-02 08:13:50,544 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 [2023-04-02 08:13:50,565 INFO L113 SettingsManager]: Loading preferences was successful [2023-04-02 08:13:50,566 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-04-02 08:13:50,566 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-04-02 08:13:50,566 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-04-02 08:13:50,567 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-04-02 08:13:50,567 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-04-02 08:13:50,567 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-04-02 08:13:50,568 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-04-02 08:13:50,568 INFO L138 SettingsManager]: * Use SBE=true [2023-04-02 08:13:50,568 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-04-02 08:13:50,568 INFO L138 SettingsManager]: * sizeof long=4 [2023-04-02 08:13:50,568 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-04-02 08:13:50,569 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-04-02 08:13:50,569 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-04-02 08:13:50,569 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-04-02 08:13:50,569 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-04-02 08:13:50,569 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-04-02 08:13:50,569 INFO L138 SettingsManager]: * sizeof long double=12 [2023-04-02 08:13:50,569 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-04-02 08:13:50,569 INFO L138 SettingsManager]: * Use constant arrays=true [2023-04-02 08:13:50,569 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-04-02 08:13:50,569 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-04-02 08:13:50,570 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-04-02 08:13:50,570 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-04-02 08:13:50,570 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-04-02 08:13:50,570 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-04-02 08:13:50,570 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-04-02 08:13:50,570 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-04-02 08:13:50,570 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-04-02 08:13:50,570 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-04-02 08:13:50,571 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-04-02 08:13:50,571 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-04-02 08:13:50,571 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-04-02 08:13:50,571 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-04-02 08:13:50,571 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-04-02 08:13:50,571 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2023-04-02 08:13:50,749 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-04-02 08:13:50,767 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-04-02 08:13:50,769 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-04-02 08:13:50,769 INFO L271 PluginConnector]: Initializing CDTParser... [2023-04-02 08:13:50,784 INFO L275 PluginConnector]: CDTParser initialized [2023-04-02 08:13:50,786 INFO L432 ainManager$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--isdn--mISDN--l1oip.ko-main.cil.out.i [2023-04-02 08:13:51,772 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-04-02 08:13:52,169 INFO L351 CDTParser]: Found 1 translation units. [2023-04-02 08:13:52,169 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--isdn--mISDN--l1oip.ko-main.cil.out.i [2023-04-02 08:13:52,198 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f69ad89b7/adca2d821cf5466b88d0db282992c0c4/FLAGa9a4a5c48 [2023-04-02 08:13:52,210 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f69ad89b7/adca2d821cf5466b88d0db282992c0c4 [2023-04-02 08:13:52,212 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-04-02 08:13:52,213 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2023-04-02 08:13:52,214 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-04-02 08:13:52,214 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-04-02 08:13:52,216 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-04-02 08:13:52,217 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.04 08:13:52" (1/1) ... [2023-04-02 08:13:52,218 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@73f2c051 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 08:13:52, skipping insertion in model container [2023-04-02 08:13:52,218 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.04 08:13:52" (1/1) ... [2023-04-02 08:13:52,222 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-04-02 08:13:52,310 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-04-02 08:13:53,334 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--isdn--mISDN--l1oip.ko-main.cil.out.i[220631,220644] [2023-04-02 08:13:53,417 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-04-02 08:13:53,469 INFO L203 MainTranslator]: Completed pre-run [2023-04-02 08:13:53,689 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--isdn--mISDN--l1oip.ko-main.cil.out.i[220631,220644] [2023-04-02 08:13:53,697 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-04-02 08:13:53,787 WARN L667 CHandler]: The function __bad_percpu_size is called, but not defined or handled by StandardFunctionHandler. [2023-04-02 08:13:53,788 WARN L667 CHandler]: The function sprintf is called, but not defined or handled by StandardFunctionHandler. [2023-04-02 08:13:53,792 INFO L208 MainTranslator]: Completed translation [2023-04-02 08:13:53,792 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 08:13:53 WrapperNode [2023-04-02 08:13:53,792 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-04-02 08:13:53,793 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-04-02 08:13:53,793 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-04-02 08:13:53,793 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-04-02 08:13:53,801 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 08:13:53" (1/1) ... [2023-04-02 08:13:53,801 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 08:13:53" (1/1) ... [2023-04-02 08:13:53,854 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 08:13:53" (1/1) ... [2023-04-02 08:13:53,854 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 08:13:53" (1/1) ... [2023-04-02 08:13:53,929 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 08:13:53" (1/1) ... [2023-04-02 08:13:53,940 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 08:13:53" (1/1) ... [2023-04-02 08:13:53,968 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 08:13:53" (1/1) ... [2023-04-02 08:13:53,979 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 08:13:53" (1/1) ... [2023-04-02 08:13:54,017 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-04-02 08:13:54,018 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-04-02 08:13:54,018 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-04-02 08:13:54,018 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-04-02 08:13:54,019 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 08:13:53" (1/1) ... [2023-04-02 08:13:54,023 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-04-02 08:13:54,030 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-02 08:13:54,040 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-04-02 08:13:54,049 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-04-02 08:13:54,071 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2023-04-02 08:13:54,071 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-04-02 08:13:54,072 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2023-04-02 08:13:54,072 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~int~TO~int [2023-04-02 08:13:54,072 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2023-04-02 08:13:54,072 INFO L138 BoogieDeclarations]: Found implementation of procedure test_and_set_bit [2023-04-02 08:13:54,072 INFO L138 BoogieDeclarations]: Found implementation of procedure test_and_clear_bit [2023-04-02 08:13:54,072 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2023-04-02 08:13:54,072 INFO L138 BoogieDeclarations]: Found implementation of procedure variable_test_bit [2023-04-02 08:13:54,072 INFO L138 BoogieDeclarations]: Found implementation of procedure __arch_swab32 [2023-04-02 08:13:54,072 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab16 [2023-04-02 08:13:54,072 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab32 [2023-04-02 08:13:54,072 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2023-04-02 08:13:54,072 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add [2023-04-02 08:13:54,072 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add_tail [2023-04-02 08:13:54,072 INFO L138 BoogieDeclarations]: Found implementation of procedure get_current [2023-04-02 08:13:54,072 INFO L138 BoogieDeclarations]: Found implementation of procedure PTR_ERR [2023-04-02 08:13:54,072 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2023-04-02 08:13:54,072 INFO L138 BoogieDeclarations]: Found implementation of procedure test_ti_thread_flag [2023-04-02 08:13:54,073 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2023-04-02 08:13:54,073 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2023-04-02 08:13:54,073 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2023-04-02 08:13:54,073 INFO L138 BoogieDeclarations]: Found implementation of procedure init_completion [2023-04-02 08:13:54,073 INFO L138 BoogieDeclarations]: Found implementation of procedure timer_pending [2023-04-02 08:13:54,073 INFO L138 BoogieDeclarations]: Found implementation of procedure test_channelmap [2023-04-02 08:13:54,073 INFO L138 BoogieDeclarations]: Found implementation of procedure set_channelmap [2023-04-02 08:13:54,073 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-04-02 08:13:54,073 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2023-04-02 08:13:54,073 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2023-04-02 08:13:54,073 INFO L138 BoogieDeclarations]: Found implementation of procedure __kmalloc [2023-04-02 08:13:54,073 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2023-04-02 08:13:54,073 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2023-04-02 08:13:54,073 INFO L138 BoogieDeclarations]: Found implementation of procedure alloc_skb [2023-04-02 08:13:54,073 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_reserve [2023-04-02 08:13:54,073 INFO L138 BoogieDeclarations]: Found implementation of procedure test_tsk_thread_flag [2023-04-02 08:13:54,073 INFO L138 BoogieDeclarations]: Found implementation of procedure signal_pending [2023-04-02 08:13:54,073 INFO L138 BoogieDeclarations]: Found implementation of procedure mI_alloc_skb [2023-04-02 08:13:54,074 INFO L138 BoogieDeclarations]: Found implementation of procedure _alloc_mISDN_skb [2023-04-02 08:13:54,074 INFO L138 BoogieDeclarations]: Found implementation of procedure _queue_data [2023-04-02 08:13:54,074 INFO L138 BoogieDeclarations]: Found implementation of procedure l1oip_socket_send [2023-04-02 08:13:54,074 INFO L138 BoogieDeclarations]: Found implementation of procedure l1oip_socket_recv [2023-04-02 08:13:54,074 INFO L138 BoogieDeclarations]: Found implementation of procedure l1oip_socket_parse [2023-04-02 08:13:54,074 INFO L138 BoogieDeclarations]: Found implementation of procedure l1oip_socket_thread [2023-04-02 08:13:54,074 INFO L138 BoogieDeclarations]: Found implementation of procedure l1oip_socket_close [2023-04-02 08:13:54,074 INFO L138 BoogieDeclarations]: Found implementation of procedure l1oip_socket_open [2023-04-02 08:13:54,074 INFO L138 BoogieDeclarations]: Found implementation of procedure l1oip_send_bh [2023-04-02 08:13:54,074 INFO L138 BoogieDeclarations]: Found implementation of procedure l1oip_keepalive [2023-04-02 08:13:54,074 INFO L138 BoogieDeclarations]: Found implementation of procedure l1oip_timeout [2023-04-02 08:13:54,074 INFO L138 BoogieDeclarations]: Found implementation of procedure handle_dmsg [2023-04-02 08:13:54,074 INFO L138 BoogieDeclarations]: Found implementation of procedure channel_dctrl [2023-04-02 08:13:54,074 INFO L138 BoogieDeclarations]: Found implementation of procedure open_dchannel [2023-04-02 08:13:54,074 INFO L138 BoogieDeclarations]: Found implementation of procedure open_bchannel [2023-04-02 08:13:54,074 INFO L138 BoogieDeclarations]: Found implementation of procedure l1oip_dctrl [2023-04-02 08:13:54,074 INFO L138 BoogieDeclarations]: Found implementation of procedure handle_bmsg [2023-04-02 08:13:54,074 INFO L138 BoogieDeclarations]: Found implementation of procedure channel_bctrl [2023-04-02 08:13:54,075 INFO L138 BoogieDeclarations]: Found implementation of procedure l1oip_bctrl [2023-04-02 08:13:54,075 INFO L138 BoogieDeclarations]: Found implementation of procedure release_card [2023-04-02 08:13:54,075 INFO L138 BoogieDeclarations]: Found implementation of procedure l1oip_cleanup [2023-04-02 08:13:54,075 INFO L138 BoogieDeclarations]: Found implementation of procedure init_card [2023-04-02 08:13:54,075 INFO L138 BoogieDeclarations]: Found implementation of procedure l1oip_init [2023-04-02 08:13:54,075 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2023-04-02 08:13:54,075 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_1 [2023-04-02 08:13:54,075 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_2 [2023-04-02 08:13:54,075 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_3 [2023-04-02 08:13:54,075 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_trylock_4 [2023-04-02 08:13:54,075 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_5 [2023-04-02 08:13:54,075 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_6 [2023-04-02 08:13:54,075 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_7 [2023-04-02 08:13:54,075 INFO L138 BoogieDeclarations]: Found implementation of procedure l1oip_law_to_4bit [2023-04-02 08:13:54,075 INFO L138 BoogieDeclarations]: Found implementation of procedure l1oip_4bit_to_law [2023-04-02 08:13:54,075 INFO L138 BoogieDeclarations]: Found implementation of procedure l1oip_alaw_to_ulaw [2023-04-02 08:13:54,075 INFO L138 BoogieDeclarations]: Found implementation of procedure l1oip_ulaw_to_alaw [2023-04-02 08:13:54,075 INFO L138 BoogieDeclarations]: Found implementation of procedure l1oip_4bit_free [2023-04-02 08:13:54,076 INFO L138 BoogieDeclarations]: Found implementation of procedure l1oip_4bit_alloc [2023-04-02 08:13:54,076 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_15 [2023-04-02 08:13:54,076 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_16 [2023-04-02 08:13:54,076 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_17 [2023-04-02 08:13:54,076 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_trylock_18 [2023-04-02 08:13:54,076 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_19 [2023-04-02 08:13:54,076 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_20 [2023-04-02 08:13:54,076 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_21 [2023-04-02 08:13:54,076 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2023-04-02 08:13:54,076 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2023-04-02 08:13:54,076 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_trap [2023-04-02 08:13:54,076 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_interruptible_cred_guard_mutex_of_signal_struct [2023-04-02 08:13:54,076 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_killable_cred_guard_mutex_of_signal_struct [2023-04-02 08:13:54,076 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_cred_guard_mutex_of_signal_struct [2023-04-02 08:13:54,076 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_trylock_cred_guard_mutex_of_signal_struct [2023-04-02 08:13:54,076 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_dec_and_mutex_lock_cred_guard_mutex_of_signal_struct [2023-04-02 08:13:54,076 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_is_locked_cred_guard_mutex_of_signal_struct [2023-04-02 08:13:54,077 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_cred_guard_mutex_of_signal_struct [2023-04-02 08:13:54,077 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_interruptible_lock [2023-04-02 08:13:54,077 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_killable_lock [2023-04-02 08:13:54,077 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_lock [2023-04-02 08:13:54,077 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_trylock_lock [2023-04-02 08:13:54,077 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_dec_and_mutex_lock_lock [2023-04-02 08:13:54,077 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_is_locked_lock [2023-04-02 08:13:54,077 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_lock [2023-04-02 08:13:54,077 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_interruptible_mutex_of_device [2023-04-02 08:13:54,077 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_killable_mutex_of_device [2023-04-02 08:13:54,077 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_mutex_of_device [2023-04-02 08:13:54,077 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_trylock_mutex_of_device [2023-04-02 08:13:54,077 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_dec_and_mutex_lock_mutex_of_device [2023-04-02 08:13:54,077 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_is_locked_mutex_of_device [2023-04-02 08:13:54,077 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_mutex_of_device [2023-04-02 08:13:54,077 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize [2023-04-02 08:13:54,077 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2023-04-02 08:13:54,077 INFO L138 BoogieDeclarations]: Found implementation of procedure __alloc_skb [2023-04-02 08:13:54,078 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_waitqueue_head [2023-04-02 08:13:54,078 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_work [2023-04-02 08:13:54,078 INFO L138 BoogieDeclarations]: Found implementation of procedure __list_add [2023-04-02 08:13:54,078 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2023-04-02 08:13:54,078 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock [2023-04-02 08:13:54,078 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_unlock [2023-04-02 08:13:54,078 INFO L138 BoogieDeclarations]: Found implementation of procedure add_timer [2023-04-02 08:13:54,078 INFO L138 BoogieDeclarations]: Found implementation of procedure allow_signal [2023-04-02 08:13:54,078 INFO L138 BoogieDeclarations]: Found implementation of procedure cancel_work_sync [2023-04-02 08:13:54,078 INFO L138 BoogieDeclarations]: Found implementation of procedure complete [2023-04-02 08:13:54,078 INFO L138 BoogieDeclarations]: Found implementation of procedure consume_skb [2023-04-02 08:13:54,078 INFO L138 BoogieDeclarations]: Found implementation of procedure del_timer [2023-04-02 08:13:54,078 INFO L138 BoogieDeclarations]: Found implementation of procedure init_timer_key [2023-04-02 08:13:54,078 INFO L138 BoogieDeclarations]: Found implementation of procedure kernel_recvmsg [2023-04-02 08:13:54,078 INFO L138 BoogieDeclarations]: Found implementation of procedure kernel_sendmsg [2023-04-02 08:13:54,078 INFO L138 BoogieDeclarations]: Found implementation of procedure kthread_create_on_node [2023-04-02 08:13:54,078 INFO L138 BoogieDeclarations]: Found implementation of procedure list_del [2023-04-02 08:13:54,078 INFO L138 BoogieDeclarations]: Found implementation of procedure lockdep_init_map [2023-04-02 08:13:54,079 INFO L138 BoogieDeclarations]: Found implementation of procedure mISDN_freebchannel [2023-04-02 08:13:54,079 INFO L138 BoogieDeclarations]: Found implementation of procedure mISDN_freedchannel [2023-04-02 08:13:54,079 INFO L138 BoogieDeclarations]: Found implementation of procedure mISDN_initbchannel [2023-04-02 08:13:54,079 INFO L138 BoogieDeclarations]: Found implementation of procedure mISDN_initdchannel [2023-04-02 08:13:54,079 INFO L138 BoogieDeclarations]: Found implementation of procedure mISDN_register_device [2023-04-02 08:13:54,079 INFO L138 BoogieDeclarations]: Found implementation of procedure mISDN_unregister_device [2023-04-02 08:13:54,079 INFO L138 BoogieDeclarations]: Found implementation of procedure memchr_inv [2023-04-02 08:13:54,079 INFO L138 BoogieDeclarations]: Found implementation of procedure module_put [2023-04-02 08:13:54,079 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock [2023-04-02 08:13:54,079 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_trylock [2023-04-02 08:13:54,079 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2023-04-02 08:13:54,079 INFO L138 BoogieDeclarations]: Found implementation of procedure printk [2023-04-02 08:13:54,079 INFO L138 BoogieDeclarations]: Found implementation of procedure queue_ch_frame [2023-04-02 08:13:54,079 INFO L138 BoogieDeclarations]: Found implementation of procedure recv_Dchannel [2023-04-02 08:13:54,079 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule_timeout [2023-04-02 08:13:54,079 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule_work [2023-04-02 08:13:54,079 INFO L138 BoogieDeclarations]: Found implementation of procedure send_sig [2023-04-02 08:13:54,079 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_put [2023-04-02 08:13:54,080 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_trim [2023-04-02 08:13:54,080 INFO L138 BoogieDeclarations]: Found implementation of procedure sock_create [2023-04-02 08:13:54,080 INFO L138 BoogieDeclarations]: Found implementation of procedure sock_release [2023-04-02 08:13:54,080 INFO L138 BoogieDeclarations]: Found implementation of procedure try_module_get [2023-04-02 08:13:54,080 INFO L138 BoogieDeclarations]: Found implementation of procedure vfree [2023-04-02 08:13:54,080 INFO L138 BoogieDeclarations]: Found implementation of procedure vzalloc [2023-04-02 08:13:54,080 INFO L138 BoogieDeclarations]: Found implementation of procedure wait_for_completion [2023-04-02 08:13:54,080 INFO L138 BoogieDeclarations]: Found implementation of procedure wake_up_process [2023-04-02 08:13:54,080 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2023-04-02 08:13:54,080 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2023-04-02 08:13:54,080 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2023-04-02 08:13:54,080 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2023-04-02 08:13:54,080 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_perror_fail [2023-04-02 08:13:54,080 INFO L130 BoogieDeclarations]: Found specification of procedure __assert [2023-04-02 08:13:54,080 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2023-04-02 08:13:54,080 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-04-02 08:13:54,080 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2023-04-02 08:13:54,081 INFO L130 BoogieDeclarations]: Found specification of procedure test_and_set_bit [2023-04-02 08:13:54,081 INFO L130 BoogieDeclarations]: Found specification of procedure test_and_clear_bit [2023-04-02 08:13:54,081 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2023-04-02 08:13:54,081 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-04-02 08:13:54,081 INFO L130 BoogieDeclarations]: Found specification of procedure variable_test_bit [2023-04-02 08:13:54,081 INFO L130 BoogieDeclarations]: Found specification of procedure __arch_swab32 [2023-04-02 08:13:54,081 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab16 [2023-04-02 08:13:54,081 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab32 [2023-04-02 08:13:54,081 INFO L130 BoogieDeclarations]: Found specification of procedure printk [2023-04-02 08:13:54,081 INFO L130 BoogieDeclarations]: Found specification of procedure sprintf [2023-04-02 08:13:54,081 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2023-04-02 08:13:54,081 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-04-02 08:13:54,081 INFO L130 BoogieDeclarations]: Found specification of procedure __list_add [2023-04-02 08:13:54,081 INFO L130 BoogieDeclarations]: Found specification of procedure list_add [2023-04-02 08:13:54,081 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-04-02 08:13:54,081 INFO L130 BoogieDeclarations]: Found specification of procedure list_add_tail [2023-04-02 08:13:54,081 INFO L130 BoogieDeclarations]: Found specification of procedure list_del [2023-04-02 08:13:54,082 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2023-04-02 08:13:54,082 INFO L130 BoogieDeclarations]: Found specification of procedure get_current [2023-04-02 08:13:54,082 INFO L130 BoogieDeclarations]: Found specification of procedure memchr_inv [2023-04-02 08:13:54,082 INFO L130 BoogieDeclarations]: Found specification of procedure PTR_ERR [2023-04-02 08:13:54,082 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2023-04-02 08:13:54,082 INFO L130 BoogieDeclarations]: Found specification of procedure lockdep_init_map [2023-04-02 08:13:54,082 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_trylock [2023-04-02 08:13:54,082 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_trylock_4 [2023-04-02 08:13:54,082 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2023-04-02 08:13:54,082 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_2 [2023-04-02 08:13:54,082 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_5 [2023-04-02 08:13:54,082 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_7 [2023-04-02 08:13:54,082 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock [2023-04-02 08:13:54,082 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_1 [2023-04-02 08:13:54,082 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_3 [2023-04-02 08:13:54,082 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_6 [2023-04-02 08:13:54,082 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_cred_guard_mutex_of_signal_struct [2023-04-02 08:13:54,083 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_cred_guard_mutex_of_signal_struct [2023-04-02 08:13:54,083 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_lock [2023-04-02 08:13:54,083 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_lock [2023-04-02 08:13:54,083 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_mutex_of_device [2023-04-02 08:13:54,083 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_trylock_mutex_of_device [2023-04-02 08:13:54,083 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_mutex_of_device [2023-04-02 08:13:54,083 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2023-04-02 08:13:54,083 INFO L130 BoogieDeclarations]: Found specification of procedure test_ti_thread_flag [2023-04-02 08:13:54,083 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2023-04-02 08:13:54,083 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock [2023-04-02 08:13:54,083 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_unlock [2023-04-02 08:13:54,083 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2023-04-02 08:13:54,083 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2023-04-02 08:13:54,083 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2023-04-02 08:13:54,083 INFO L130 BoogieDeclarations]: Found specification of procedure __init_waitqueue_head [2023-04-02 08:13:54,083 INFO L130 BoogieDeclarations]: Found specification of procedure init_completion [2023-04-02 08:13:54,083 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-04-02 08:13:54,083 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-04-02 08:13:54,084 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-04-02 08:13:54,084 INFO L130 BoogieDeclarations]: Found specification of procedure wait_for_completion [2023-04-02 08:13:54,084 INFO L130 BoogieDeclarations]: Found specification of procedure complete [2023-04-02 08:13:54,084 INFO L130 BoogieDeclarations]: Found specification of procedure init_timer_key [2023-04-02 08:13:54,084 INFO L130 BoogieDeclarations]: Found specification of procedure timer_pending [2023-04-02 08:13:54,084 INFO L130 BoogieDeclarations]: Found specification of procedure del_timer [2023-04-02 08:13:54,084 INFO L130 BoogieDeclarations]: Found specification of procedure add_timer [2023-04-02 08:13:54,084 INFO L130 BoogieDeclarations]: Found specification of procedure __init_work [2023-04-02 08:13:54,084 INFO L130 BoogieDeclarations]: Found specification of procedure schedule_work [2023-04-02 08:13:54,084 INFO L130 BoogieDeclarations]: Found specification of procedure cancel_work_sync [2023-04-02 08:13:54,084 INFO L130 BoogieDeclarations]: Found specification of procedure try_module_get [2023-04-02 08:13:54,084 INFO L130 BoogieDeclarations]: Found specification of procedure module_put [2023-04-02 08:13:54,084 INFO L130 BoogieDeclarations]: Found specification of procedure test_channelmap [2023-04-02 08:13:54,084 INFO L130 BoogieDeclarations]: Found specification of procedure set_channelmap [2023-04-02 08:13:54,084 INFO L130 BoogieDeclarations]: Found specification of procedure sock_create [2023-04-02 08:13:54,084 INFO L130 BoogieDeclarations]: Found specification of procedure sock_release [2023-04-02 08:13:54,084 INFO L130 BoogieDeclarations]: Found specification of procedure kernel_sendmsg [2023-04-02 08:13:54,085 INFO L130 BoogieDeclarations]: Found specification of procedure kernel_recvmsg [2023-04-02 08:13:54,103 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2023-04-02 08:13:54,103 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-04-02 08:13:54,103 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2023-04-02 08:13:54,103 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2023-04-02 08:13:54,104 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2023-04-02 08:13:54,104 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-04-02 08:13:54,104 INFO L130 BoogieDeclarations]: Found specification of procedure __kmalloc [2023-04-02 08:13:54,104 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2023-04-02 08:13:54,104 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2023-04-02 08:13:54,104 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2023-04-02 08:13:54,104 INFO L130 BoogieDeclarations]: Found specification of procedure consume_skb [2023-04-02 08:13:54,104 INFO L130 BoogieDeclarations]: Found specification of procedure __alloc_skb [2023-04-02 08:13:54,104 INFO L130 BoogieDeclarations]: Found specification of procedure alloc_skb [2023-04-02 08:13:54,105 INFO L130 BoogieDeclarations]: Found specification of procedure skb_put [2023-04-02 08:13:54,105 INFO L130 BoogieDeclarations]: Found specification of procedure skb_reserve [2023-04-02 08:13:54,105 INFO L130 BoogieDeclarations]: Found specification of procedure skb_trim [2023-04-02 08:13:54,105 INFO L130 BoogieDeclarations]: Found specification of procedure schedule_timeout [2023-04-02 08:13:54,105 INFO L130 BoogieDeclarations]: Found specification of procedure wake_up_process [2023-04-02 08:13:54,106 INFO L130 BoogieDeclarations]: Found specification of procedure send_sig [2023-04-02 08:13:54,106 INFO L130 BoogieDeclarations]: Found specification of procedure allow_signal [2023-04-02 08:13:54,106 INFO L130 BoogieDeclarations]: Found specification of procedure test_tsk_thread_flag [2023-04-02 08:13:54,106 INFO L130 BoogieDeclarations]: Found specification of procedure signal_pending [2023-04-02 08:13:54,106 INFO L130 BoogieDeclarations]: Found specification of procedure mI_alloc_skb [2023-04-02 08:13:54,107 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy [2023-04-02 08:13:54,109 INFO L130 BoogieDeclarations]: Found specification of procedure _alloc_mISDN_skb [2023-04-02 08:13:54,111 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2023-04-02 08:13:54,111 INFO L130 BoogieDeclarations]: Found specification of procedure _queue_data [2023-04-02 08:13:54,111 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2023-04-02 08:13:54,111 INFO L130 BoogieDeclarations]: Found specification of procedure mISDN_register_device [2023-04-02 08:13:54,111 INFO L130 BoogieDeclarations]: Found specification of procedure mISDN_unregister_device [2023-04-02 08:13:54,111 INFO L130 BoogieDeclarations]: Found specification of procedure mISDN_initdchannel [2023-04-02 08:13:54,111 INFO L130 BoogieDeclarations]: Found specification of procedure mISDN_initbchannel [2023-04-02 08:13:54,112 INFO L130 BoogieDeclarations]: Found specification of procedure mISDN_freedchannel [2023-04-02 08:13:54,112 INFO L130 BoogieDeclarations]: Found specification of procedure mISDN_freebchannel [2023-04-02 08:13:54,112 INFO L130 BoogieDeclarations]: Found specification of procedure queue_ch_frame [2023-04-02 08:13:54,112 INFO L130 BoogieDeclarations]: Found specification of procedure recv_Dchannel [2023-04-02 08:13:54,112 INFO L130 BoogieDeclarations]: Found specification of procedure kthread_create_on_node [2023-04-02 08:13:54,112 INFO L130 BoogieDeclarations]: Found specification of procedure l1oip_law_to_4bit [2023-04-02 08:13:54,112 INFO L130 BoogieDeclarations]: Found specification of procedure l1oip_4bit_to_law [2023-04-02 08:13:54,112 INFO L130 BoogieDeclarations]: Found specification of procedure l1oip_alaw_to_ulaw [2023-04-02 08:13:54,112 INFO L130 BoogieDeclarations]: Found specification of procedure l1oip_ulaw_to_alaw [2023-04-02 08:13:54,112 INFO L130 BoogieDeclarations]: Found specification of procedure l1oip_4bit_free [2023-04-02 08:13:54,112 INFO L130 BoogieDeclarations]: Found specification of procedure l1oip_4bit_alloc [2023-04-02 08:13:54,112 INFO L130 BoogieDeclarations]: Found specification of procedure l1oip_socket_send [2023-04-02 08:13:54,112 INFO L130 BoogieDeclarations]: Found specification of procedure l1oip_socket_recv [2023-04-02 08:13:54,112 INFO L130 BoogieDeclarations]: Found specification of procedure l1oip_socket_parse [2023-04-02 08:13:54,112 INFO L130 BoogieDeclarations]: Found specification of procedure l1oip_socket_thread [2023-04-02 08:13:54,112 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~int~TO~int [2023-04-02 08:13:54,112 INFO L130 BoogieDeclarations]: Found specification of procedure l1oip_socket_close [2023-04-02 08:13:54,112 INFO L130 BoogieDeclarations]: Found specification of procedure l1oip_socket_open [2023-04-02 08:13:54,112 INFO L130 BoogieDeclarations]: Found specification of procedure l1oip_send_bh [2023-04-02 08:13:54,113 INFO L130 BoogieDeclarations]: Found specification of procedure l1oip_keepalive [2023-04-02 08:13:54,113 INFO L130 BoogieDeclarations]: Found specification of procedure l1oip_timeout [2023-04-02 08:13:54,113 INFO L130 BoogieDeclarations]: Found specification of procedure handle_dmsg [2023-04-02 08:13:54,113 INFO L130 BoogieDeclarations]: Found specification of procedure channel_dctrl [2023-04-02 08:13:54,113 INFO L130 BoogieDeclarations]: Found specification of procedure open_dchannel [2023-04-02 08:13:54,113 INFO L130 BoogieDeclarations]: Found specification of procedure open_bchannel [2023-04-02 08:13:54,113 INFO L130 BoogieDeclarations]: Found specification of procedure l1oip_dctrl [2023-04-02 08:13:54,113 INFO L130 BoogieDeclarations]: Found specification of procedure handle_bmsg [2023-04-02 08:13:54,113 INFO L130 BoogieDeclarations]: Found specification of procedure channel_bctrl [2023-04-02 08:13:54,113 INFO L130 BoogieDeclarations]: Found specification of procedure l1oip_bctrl [2023-04-02 08:13:54,113 INFO L130 BoogieDeclarations]: Found specification of procedure release_card [2023-04-02 08:13:54,113 INFO L130 BoogieDeclarations]: Found specification of procedure l1oip_cleanup [2023-04-02 08:13:54,113 INFO L130 BoogieDeclarations]: Found specification of procedure init_card [2023-04-02 08:13:54,113 INFO L130 BoogieDeclarations]: Found specification of procedure l1oip_init [2023-04-02 08:13:54,113 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize [2023-04-02 08:13:54,113 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2023-04-02 08:13:54,113 INFO L130 BoogieDeclarations]: Found specification of procedure main [2023-04-02 08:13:54,113 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_trylock_18 [2023-04-02 08:13:54,114 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_16 [2023-04-02 08:13:54,114 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_19 [2023-04-02 08:13:54,114 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_21 [2023-04-02 08:13:54,114 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_15 [2023-04-02 08:13:54,114 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_17 [2023-04-02 08:13:54,114 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_20 [2023-04-02 08:13:54,114 INFO L130 BoogieDeclarations]: Found specification of procedure vzalloc [2023-04-02 08:13:54,114 INFO L130 BoogieDeclarations]: Found specification of procedure vfree [2023-04-02 08:13:54,114 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2023-04-02 08:13:54,114 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_trap [2023-04-02 08:13:54,114 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_interruptible_cred_guard_mutex_of_signal_struct [2023-04-02 08:13:54,114 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_killable_cred_guard_mutex_of_signal_struct [2023-04-02 08:13:54,114 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_trylock_cred_guard_mutex_of_signal_struct [2023-04-02 08:13:54,114 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_dec_and_mutex_lock_cred_guard_mutex_of_signal_struct [2023-04-02 08:13:54,114 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_is_locked_cred_guard_mutex_of_signal_struct [2023-04-02 08:13:54,114 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_interruptible_lock [2023-04-02 08:13:54,114 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_killable_lock [2023-04-02 08:13:54,114 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_trylock_lock [2023-04-02 08:13:54,115 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_dec_and_mutex_lock_lock [2023-04-02 08:13:54,115 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_is_locked_lock [2023-04-02 08:13:54,115 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_interruptible_mutex_of_device [2023-04-02 08:13:54,115 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_killable_mutex_of_device [2023-04-02 08:13:54,115 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_dec_and_mutex_lock_mutex_of_device [2023-04-02 08:13:54,115 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_is_locked_mutex_of_device [2023-04-02 08:13:54,115 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_bool [2023-04-02 08:13:54,115 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_long [2023-04-02 08:13:54,115 INFO L130 BoogieDeclarations]: Found specification of procedure free [2023-04-02 08:13:54,115 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2023-04-02 08:13:54,115 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-04-02 08:13:54,115 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2023-04-02 08:13:54,115 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-04-02 08:13:54,115 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2023-04-02 08:13:54,115 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2023-04-02 08:13:54,115 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2023-04-02 08:13:54,115 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2023-04-02 08:13:54,618 INFO L236 CfgBuilder]: Building ICFG [2023-04-02 08:13:54,624 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-04-02 08:14:00,793 INFO L277 CfgBuilder]: Performing block encoding [2023-04-02 08:14:00,811 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-04-02 08:14:00,811 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-04-02 08:14:00,814 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.04 08:14:00 BoogieIcfgContainer [2023-04-02 08:14:00,814 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-04-02 08:14:00,817 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-04-02 08:14:00,817 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-04-02 08:14:00,819 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-04-02 08:14:00,820 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.04 08:13:52" (1/3) ... [2023-04-02 08:14:00,820 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@22e9c9e6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.04 08:14:00, skipping insertion in model container [2023-04-02 08:14:00,820 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 08:13:53" (2/3) ... [2023-04-02 08:14:00,821 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@22e9c9e6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.04 08:14:00, skipping insertion in model container [2023-04-02 08:14:00,821 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.04 08:14:00" (3/3) ... [2023-04-02 08:14:00,821 INFO L112 eAbstractionObserver]: Analyzing ICFG 32_7a_cilled_linux-3.8-rc1-drivers--isdn--mISDN--l1oip.ko-main.cil.out.i [2023-04-02 08:14:00,834 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-04-02 08:14:00,834 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-04-02 08:14:00,901 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-04-02 08:14:00,905 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;@26823d32, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-04-02 08:14:00,905 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-04-02 08:14:00,913 INFO L276 IsEmpty]: Start isEmpty. Operand has 1492 states, 1048 states have (on average 1.3864503816793894) internal successors, (1453), 1071 states have internal predecessors, (1453), 296 states have call successors, (296), 108 states have call predecessors, (296), 108 states have return successors, (296), 295 states have call predecessors, (296), 296 states have call successors, (296) [2023-04-02 08:14:00,919 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2023-04-02 08:14:00,920 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 08:14:00,921 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] [2023-04-02 08:14:00,921 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 08:14:00,925 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 08:14:00,925 INFO L85 PathProgramCache]: Analyzing trace with hash -1352140955, now seen corresponding path program 1 times [2023-04-02 08:14:00,932 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 08:14:00,932 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [214156207] [2023-04-02 08:14:00,932 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 08:14:00,933 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 08:14:01,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 08:14:01,666 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 08:14:01,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 08:14:01,817 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 08:14:01,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 08:14:01,843 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-04-02 08:14:01,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 08:14:01,874 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-04-02 08:14:01,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 08:14:01,881 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-04-02 08:14:01,882 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 08:14:01,882 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [214156207] [2023-04-02 08:14:01,882 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [214156207] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 08:14:01,883 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 08:14:01,883 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-04-02 08:14:01,887 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1754047191] [2023-04-02 08:14:01,887 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 08:14:01,891 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-04-02 08:14:01,891 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 08:14:01,916 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-04-02 08:14:01,916 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2023-04-02 08:14:01,920 INFO L87 Difference]: Start difference. First operand has 1492 states, 1048 states have (on average 1.3864503816793894) internal successors, (1453), 1071 states have internal predecessors, (1453), 296 states have call successors, (296), 108 states have call predecessors, (296), 108 states have return successors, (296), 295 states have call predecessors, (296), 296 states have call successors, (296) Second operand has 7 states, 7 states have (on average 3.0) internal successors, (21), 3 states have internal predecessors, (21), 2 states have call successors, (7), 6 states have call predecessors, (7), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2023-04-02 08:14:11,987 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 08:14:11,988 INFO L93 Difference]: Finished difference Result 2705 states and 3851 transitions. [2023-04-02 08:14:11,989 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-04-02 08:14:11,990 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 3.0) internal successors, (21), 3 states have internal predecessors, (21), 2 states have call successors, (7), 6 states have call predecessors, (7), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 32 [2023-04-02 08:14:11,990 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 08:14:12,005 INFO L225 Difference]: With dead ends: 2705 [2023-04-02 08:14:12,005 INFO L226 Difference]: Without dead ends: 1844 [2023-04-02 08:14:12,027 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=72, Invalid=138, Unknown=0, NotChecked=0, Total=210 [2023-04-02 08:14:12,030 INFO L413 NwaCegarLoop]: 37 mSDtfsCounter, 2891 mSDsluCounter, 147 mSDsCounter, 0 mSdLazyCounter, 4561 mSolverCounterSat, 1381 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2913 SdHoareTripleChecker+Valid, 184 SdHoareTripleChecker+Invalid, 5942 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1381 IncrementalHoareTripleChecker+Valid, 4561 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.9s IncrementalHoareTripleChecker+Time [2023-04-02 08:14:12,030 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2913 Valid, 184 Invalid, 5942 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1381 Valid, 4561 Invalid, 0 Unknown, 0 Unchecked, 8.9s Time] [2023-04-02 08:14:12,046 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1844 states. [2023-04-02 08:14:12,326 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1844 to 1331. [2023-04-02 08:14:12,329 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1331 states, 934 states have (on average 1.3586723768736617) internal successors, (1269), 956 states have internal predecessors, (1269), 270 states have call successors, (270), 129 states have call predecessors, (270), 126 states have return successors, (265), 265 states have call predecessors, (265), 265 states have call successors, (265) [2023-04-02 08:14:12,334 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1331 states to 1331 states and 1804 transitions. [2023-04-02 08:14:12,335 INFO L78 Accepts]: Start accepts. Automaton has 1331 states and 1804 transitions. Word has length 32 [2023-04-02 08:14:12,335 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 08:14:12,335 INFO L495 AbstractCegarLoop]: Abstraction has 1331 states and 1804 transitions. [2023-04-02 08:14:12,336 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 3.0) internal successors, (21), 3 states have internal predecessors, (21), 2 states have call successors, (7), 6 states have call predecessors, (7), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2023-04-02 08:14:12,336 INFO L276 IsEmpty]: Start isEmpty. Operand 1331 states and 1804 transitions. [2023-04-02 08:14:12,337 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2023-04-02 08:14:12,337 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 08:14:12,337 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] [2023-04-02 08:14:12,338 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-04-02 08:14:12,338 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 08:14:12,338 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 08:14:12,338 INFO L85 PathProgramCache]: Analyzing trace with hash -799911654, now seen corresponding path program 1 times [2023-04-02 08:14:12,338 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 08:14:12,338 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [791406263] [2023-04-02 08:14:12,338 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 08:14:12,339 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 08:14:12,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 08:14:12,756 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 08:14:12,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 08:14:12,851 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 08:14:12,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 08:14:12,876 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-04-02 08:14:12,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 08:14:12,935 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 08:14:12,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 08:14:12,949 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 08:14:12,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 08:14:12,955 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-04-02 08:14:12,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 08:14:12,959 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-04-02 08:14:12,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 08:14:12,982 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2023-04-02 08:14:12,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 08:14:13,035 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-04-02 08:14:13,035 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 08:14:13,035 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [791406263] [2023-04-02 08:14:13,036 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [791406263] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 08:14:13,036 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 08:14:13,036 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-04-02 08:14:13,036 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [402458901] [2023-04-02 08:14:13,036 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 08:14:13,040 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-04-02 08:14:13,040 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 08:14:13,040 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-04-02 08:14:13,041 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2023-04-02 08:14:13,041 INFO L87 Difference]: Start difference. First operand 1331 states and 1804 transitions. Second operand has 10 states, 10 states have (on average 3.4) internal successors, (34), 4 states have internal predecessors, (34), 2 states have call successors, (11), 7 states have call predecessors, (11), 3 states have return successors, (8), 3 states have call predecessors, (8), 1 states have call successors, (8) [2023-04-02 08:14:20,442 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 08:14:20,442 INFO L93 Difference]: Finished difference Result 3131 states and 4319 transitions. [2023-04-02 08:14:20,443 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-04-02 08:14:20,444 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 3.4) internal successors, (34), 4 states have internal predecessors, (34), 2 states have call successors, (11), 7 states have call predecessors, (11), 3 states have return successors, (8), 3 states have call predecessors, (8), 1 states have call successors, (8) Word has length 53 [2023-04-02 08:14:20,444 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 08:14:20,452 INFO L225 Difference]: With dead ends: 3131 [2023-04-02 08:14:20,452 INFO L226 Difference]: Without dead ends: 1811 [2023-04-02 08:14:20,455 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 39 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=72, Invalid=234, Unknown=0, NotChecked=0, Total=306 [2023-04-02 08:14:20,456 INFO L413 NwaCegarLoop]: 35 mSDtfsCounter, 2014 mSDsluCounter, 155 mSDsCounter, 0 mSdLazyCounter, 6184 mSolverCounterSat, 1018 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2104 SdHoareTripleChecker+Valid, 190 SdHoareTripleChecker+Invalid, 7202 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1018 IncrementalHoareTripleChecker+Valid, 6184 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.5s IncrementalHoareTripleChecker+Time [2023-04-02 08:14:20,457 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2104 Valid, 190 Invalid, 7202 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1018 Valid, 6184 Invalid, 0 Unknown, 0 Unchecked, 6.5s Time] [2023-04-02 08:14:20,458 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1811 states. [2023-04-02 08:14:20,709 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1811 to 1335. [2023-04-02 08:14:20,711 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1335 states, 937 states have (on average 1.3575240128068302) internal successors, (1272), 959 states have internal predecessors, (1272), 270 states have call successors, (270), 129 states have call predecessors, (270), 127 states have return successors, (266), 266 states have call predecessors, (266), 265 states have call successors, (266) [2023-04-02 08:14:20,715 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1335 states to 1335 states and 1808 transitions. [2023-04-02 08:14:20,715 INFO L78 Accepts]: Start accepts. Automaton has 1335 states and 1808 transitions. Word has length 53 [2023-04-02 08:14:20,715 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 08:14:20,715 INFO L495 AbstractCegarLoop]: Abstraction has 1335 states and 1808 transitions. [2023-04-02 08:14:20,716 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 3.4) internal successors, (34), 4 states have internal predecessors, (34), 2 states have call successors, (11), 7 states have call predecessors, (11), 3 states have return successors, (8), 3 states have call predecessors, (8), 1 states have call successors, (8) [2023-04-02 08:14:20,716 INFO L276 IsEmpty]: Start isEmpty. Operand 1335 states and 1808 transitions. [2023-04-02 08:14:20,717 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2023-04-02 08:14:20,717 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 08:14:20,717 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 08:14:20,717 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-04-02 08:14:20,717 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 08:14:20,718 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 08:14:20,718 INFO L85 PathProgramCache]: Analyzing trace with hash 2116002995, now seen corresponding path program 1 times [2023-04-02 08:14:20,718 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 08:14:20,718 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [714803146] [2023-04-02 08:14:20,718 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 08:14:20,718 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 08:14:20,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 08:14:21,093 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 08:14:21,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 08:14:21,169 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 08:14:21,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 08:14:21,189 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-04-02 08:14:21,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 08:14:21,240 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 08:14:21,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 08:14:21,257 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 08:14:21,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 08:14:21,263 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-04-02 08:14:21,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 08:14:21,265 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-04-02 08:14:21,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 08:14:21,290 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2023-04-02 08:14:21,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 08:14:21,295 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2023-04-02 08:14:21,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 08:14:21,329 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-04-02 08:14:21,329 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 08:14:21,329 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [714803146] [2023-04-02 08:14:21,329 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [714803146] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 08:14:21,329 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 08:14:21,329 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-04-02 08:14:21,329 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [97588598] [2023-04-02 08:14:21,329 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 08:14:21,329 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-04-02 08:14:21,330 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 08:14:21,330 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-04-02 08:14:21,330 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2023-04-02 08:14:21,330 INFO L87 Difference]: Start difference. First operand 1335 states and 1808 transitions. Second operand has 10 states, 10 states have (on average 3.8) internal successors, (38), 4 states have internal predecessors, (38), 2 states have call successors, (12), 7 states have call predecessors, (12), 2 states have return successors, (9), 2 states have call predecessors, (9), 1 states have call successors, (9) [2023-04-02 08:14:28,740 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 08:14:28,740 INFO L93 Difference]: Finished difference Result 3146 states and 4333 transitions. [2023-04-02 08:14:28,740 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-04-02 08:14:28,740 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 3.8) internal successors, (38), 4 states have internal predecessors, (38), 2 states have call successors, (12), 7 states have call predecessors, (12), 2 states have return successors, (9), 2 states have call predecessors, (9), 1 states have call successors, (9) Word has length 61 [2023-04-02 08:14:28,741 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 08:14:28,747 INFO L225 Difference]: With dead ends: 3146 [2023-04-02 08:14:28,747 INFO L226 Difference]: Without dead ends: 1822 [2023-04-02 08:14:28,750 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=75, Invalid=231, Unknown=0, NotChecked=0, Total=306 [2023-04-02 08:14:28,750 INFO L413 NwaCegarLoop]: 32 mSDtfsCounter, 3009 mSDsluCounter, 136 mSDsCounter, 0 mSdLazyCounter, 5473 mSolverCounterSat, 1539 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3012 SdHoareTripleChecker+Valid, 168 SdHoareTripleChecker+Invalid, 7012 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1539 IncrementalHoareTripleChecker+Valid, 5473 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.4s IncrementalHoareTripleChecker+Time [2023-04-02 08:14:28,751 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3012 Valid, 168 Invalid, 7012 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1539 Valid, 5473 Invalid, 0 Unknown, 0 Unchecked, 6.4s Time] [2023-04-02 08:14:28,752 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1822 states. [2023-04-02 08:14:29,005 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1822 to 1339. [2023-04-02 08:14:29,007 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1339 states, 940 states have (on average 1.3553191489361702) internal successors, (1274), 962 states have internal predecessors, (1274), 270 states have call successors, (270), 129 states have call predecessors, (270), 128 states have return successors, (267), 267 states have call predecessors, (267), 265 states have call successors, (267) [2023-04-02 08:14:29,010 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1339 states to 1339 states and 1811 transitions. [2023-04-02 08:14:29,010 INFO L78 Accepts]: Start accepts. Automaton has 1339 states and 1811 transitions. Word has length 61 [2023-04-02 08:14:29,010 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 08:14:29,010 INFO L495 AbstractCegarLoop]: Abstraction has 1339 states and 1811 transitions. [2023-04-02 08:14:29,011 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 3.8) internal successors, (38), 4 states have internal predecessors, (38), 2 states have call successors, (12), 7 states have call predecessors, (12), 2 states have return successors, (9), 2 states have call predecessors, (9), 1 states have call successors, (9) [2023-04-02 08:14:29,011 INFO L276 IsEmpty]: Start isEmpty. Operand 1339 states and 1811 transitions. [2023-04-02 08:14:29,013 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2023-04-02 08:14:29,013 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 08:14:29,013 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 08:14:29,013 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-04-02 08:14:29,013 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 08:14:29,014 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 08:14:29,014 INFO L85 PathProgramCache]: Analyzing trace with hash 1953606653, now seen corresponding path program 1 times [2023-04-02 08:14:29,014 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 08:14:29,014 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1554508487] [2023-04-02 08:14:29,014 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 08:14:29,014 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 08:14:29,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 08:14:29,311 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 08:14:29,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 08:14:29,379 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 08:14:29,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 08:14:29,401 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-04-02 08:14:29,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 08:14:29,424 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 08:14:29,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 08:14:29,435 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 08:14:29,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 08:14:29,439 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-04-02 08:14:29,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 08:14:29,442 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-04-02 08:14:29,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 08:14:29,459 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2023-04-02 08:14:29,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 08:14:29,463 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2023-04-02 08:14:29,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 08:14:29,479 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-04-02 08:14:29,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 08:14:29,504 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-04-02 08:14:29,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 08:14:29,510 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2023-04-02 08:14:29,511 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 08:14:29,511 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1554508487] [2023-04-02 08:14:29,511 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1554508487] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 08:14:29,511 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 08:14:29,511 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-04-02 08:14:29,511 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2112019734] [2023-04-02 08:14:29,511 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 08:14:29,511 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-04-02 08:14:29,511 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 08:14:29,512 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-04-02 08:14:29,512 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2023-04-02 08:14:29,512 INFO L87 Difference]: Start difference. First operand 1339 states and 1811 transitions. Second operand has 9 states, 9 states have (on average 5.333333333333333) internal successors, (48), 3 states have internal predecessors, (48), 3 states have call successors, (14), 9 states have call predecessors, (14), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2023-04-02 08:14:35,704 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 08:14:35,704 INFO L93 Difference]: Finished difference Result 1875 states and 2632 transitions. [2023-04-02 08:14:35,704 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-04-02 08:14:35,704 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 5.333333333333333) internal successors, (48), 3 states have internal predecessors, (48), 3 states have call successors, (14), 9 states have call predecessors, (14), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 78 [2023-04-02 08:14:35,705 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 08:14:35,711 INFO L225 Difference]: With dead ends: 1875 [2023-04-02 08:14:35,711 INFO L226 Difference]: Without dead ends: 1872 [2023-04-02 08:14:35,711 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=86, Invalid=186, Unknown=0, NotChecked=0, Total=272 [2023-04-02 08:14:35,712 INFO L413 NwaCegarLoop]: 33 mSDtfsCounter, 3108 mSDsluCounter, 113 mSDsCounter, 0 mSdLazyCounter, 3447 mSolverCounterSat, 1449 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3108 SdHoareTripleChecker+Valid, 146 SdHoareTripleChecker+Invalid, 4896 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1449 IncrementalHoareTripleChecker+Valid, 3447 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.3s IncrementalHoareTripleChecker+Time [2023-04-02 08:14:35,712 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3108 Valid, 146 Invalid, 4896 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1449 Valid, 3447 Invalid, 0 Unknown, 0 Unchecked, 5.3s Time] [2023-04-02 08:14:35,714 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1872 states. [2023-04-02 08:14:35,965 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1872 to 1338. [2023-04-02 08:14:35,966 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1338 states, 940 states have (on average 1.3542553191489362) internal successors, (1273), 961 states have internal predecessors, (1273), 269 states have call successors, (269), 129 states have call predecessors, (269), 128 states have return successors, (267), 267 states have call predecessors, (267), 265 states have call successors, (267) [2023-04-02 08:14:35,969 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1338 states to 1338 states and 1809 transitions. [2023-04-02 08:14:35,969 INFO L78 Accepts]: Start accepts. Automaton has 1338 states and 1809 transitions. Word has length 78 [2023-04-02 08:14:35,970 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 08:14:35,970 INFO L495 AbstractCegarLoop]: Abstraction has 1338 states and 1809 transitions. [2023-04-02 08:14:35,970 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 5.333333333333333) internal successors, (48), 3 states have internal predecessors, (48), 3 states have call successors, (14), 9 states have call predecessors, (14), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2023-04-02 08:14:35,970 INFO L276 IsEmpty]: Start isEmpty. Operand 1338 states and 1809 transitions. [2023-04-02 08:14:35,972 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2023-04-02 08:14:35,972 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 08:14:35,972 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 08:14:35,972 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-04-02 08:14:35,972 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 08:14:35,972 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 08:14:35,972 INFO L85 PathProgramCache]: Analyzing trace with hash 431493631, now seen corresponding path program 1 times [2023-04-02 08:14:35,973 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 08:14:35,973 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1953446095] [2023-04-02 08:14:35,973 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 08:14:35,973 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 08:14:36,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 08:14:36,247 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 08:14:36,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 08:14:36,330 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 08:14:36,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 08:14:36,361 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-04-02 08:14:36,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 08:14:36,380 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 08:14:36,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 08:14:36,392 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 08:14:36,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 08:14:36,397 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-04-02 08:14:36,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 08:14:36,400 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-04-02 08:14:36,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 08:14:36,422 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2023-04-02 08:14:36,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 08:14:36,427 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2023-04-02 08:14:36,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 08:14:36,430 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-04-02 08:14:36,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 08:14:36,451 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-04-02 08:14:36,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 08:14:36,457 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2023-04-02 08:14:36,457 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 08:14:36,458 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1953446095] [2023-04-02 08:14:36,458 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1953446095] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 08:14:36,458 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 08:14:36,458 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-04-02 08:14:36,458 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1843584160] [2023-04-02 08:14:36,459 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 08:14:36,460 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-04-02 08:14:36,460 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 08:14:36,460 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-04-02 08:14:36,460 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2023-04-02 08:14:36,460 INFO L87 Difference]: Start difference. First operand 1338 states and 1809 transitions. Second operand has 9 states, 9 states have (on average 5.444444444444445) internal successors, (49), 3 states have internal predecessors, (49), 3 states have call successors, (14), 9 states have call predecessors, (14), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2023-04-02 08:14:42,965 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 08:14:42,965 INFO L93 Difference]: Finished difference Result 1874 states and 2630 transitions. [2023-04-02 08:14:42,965 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-04-02 08:14:42,966 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 5.444444444444445) internal successors, (49), 3 states have internal predecessors, (49), 3 states have call successors, (14), 9 states have call predecessors, (14), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 79 [2023-04-02 08:14:42,966 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 08:14:42,971 INFO L225 Difference]: With dead ends: 1874 [2023-04-02 08:14:42,971 INFO L226 Difference]: Without dead ends: 1871 [2023-04-02 08:14:42,972 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=86, Invalid=186, Unknown=0, NotChecked=0, Total=272 [2023-04-02 08:14:42,974 INFO L413 NwaCegarLoop]: 33 mSDtfsCounter, 3506 mSDsluCounter, 113 mSDsCounter, 0 mSdLazyCounter, 3236 mSolverCounterSat, 1741 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3506 SdHoareTripleChecker+Valid, 146 SdHoareTripleChecker+Invalid, 4977 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1741 IncrementalHoareTripleChecker+Valid, 3236 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.5s IncrementalHoareTripleChecker+Time [2023-04-02 08:14:42,974 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3506 Valid, 146 Invalid, 4977 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1741 Valid, 3236 Invalid, 0 Unknown, 0 Unchecked, 5.5s Time] [2023-04-02 08:14:42,977 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1871 states. [2023-04-02 08:14:43,240 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1871 to 1337. [2023-04-02 08:14:43,241 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1337 states, 940 states have (on average 1.353191489361702) internal successors, (1272), 960 states have internal predecessors, (1272), 268 states have call successors, (268), 129 states have call predecessors, (268), 128 states have return successors, (267), 267 states have call predecessors, (267), 265 states have call successors, (267) [2023-04-02 08:14:43,244 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1337 states to 1337 states and 1807 transitions. [2023-04-02 08:14:43,244 INFO L78 Accepts]: Start accepts. Automaton has 1337 states and 1807 transitions. Word has length 79 [2023-04-02 08:14:43,245 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 08:14:43,245 INFO L495 AbstractCegarLoop]: Abstraction has 1337 states and 1807 transitions. [2023-04-02 08:14:43,245 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 5.444444444444445) internal successors, (49), 3 states have internal predecessors, (49), 3 states have call successors, (14), 9 states have call predecessors, (14), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2023-04-02 08:14:43,245 INFO L276 IsEmpty]: Start isEmpty. Operand 1337 states and 1807 transitions. [2023-04-02 08:14:43,246 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2023-04-02 08:14:43,246 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 08:14:43,246 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 08:14:43,246 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-04-02 08:14:43,246 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 08:14:43,246 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 08:14:43,246 INFO L85 PathProgramCache]: Analyzing trace with hash 490635072, now seen corresponding path program 1 times [2023-04-02 08:14:43,247 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 08:14:43,247 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2061802641] [2023-04-02 08:14:43,247 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 08:14:43,247 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 08:14:43,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 08:14:43,502 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 08:14:43,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 08:14:43,577 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 08:14:43,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 08:14:43,602 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-04-02 08:14:43,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 08:14:43,621 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-04-02 08:14:43,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 08:14:43,632 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-04-02 08:14:43,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 08:14:43,638 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-04-02 08:14:43,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 08:14:43,640 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-04-02 08:14:43,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 08:14:43,658 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2023-04-02 08:14:43,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 08:14:43,661 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2023-04-02 08:14:43,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 08:14:43,664 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-04-02 08:14:43,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 08:14:43,684 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-04-02 08:14:43,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 08:14:43,688 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2023-04-02 08:14:43,688 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 08:14:43,688 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2061802641] [2023-04-02 08:14:43,688 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2061802641] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 08:14:43,688 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 08:14:43,688 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-04-02 08:14:43,688 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1636722543] [2023-04-02 08:14:43,689 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 08:14:43,689 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-04-02 08:14:43,689 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 08:14:43,689 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-04-02 08:14:43,689 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2023-04-02 08:14:43,690 INFO L87 Difference]: Start difference. First operand 1337 states and 1807 transitions. Second operand has 9 states, 9 states have (on average 5.555555555555555) internal successors, (50), 3 states have internal predecessors, (50), 3 states have call successors, (14), 9 states have call predecessors, (14), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2023-04-02 08:14:50,018 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 08:14:50,018 INFO L93 Difference]: Finished difference Result 1871 states and 2627 transitions. [2023-04-02 08:14:50,019 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-04-02 08:14:50,019 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 5.555555555555555) internal successors, (50), 3 states have internal predecessors, (50), 3 states have call successors, (14), 9 states have call predecessors, (14), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 80 [2023-04-02 08:14:50,019 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 08:14:50,019 INFO L225 Difference]: With dead ends: 1871 [2023-04-02 08:14:50,020 INFO L226 Difference]: Without dead ends: 0 [2023-04-02 08:14:50,023 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=86, Invalid=186, Unknown=0, NotChecked=0, Total=272 [2023-04-02 08:14:50,024 INFO L413 NwaCegarLoop]: 33 mSDtfsCounter, 3101 mSDsluCounter, 113 mSDsCounter, 0 mSdLazyCounter, 3425 mSolverCounterSat, 1465 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3101 SdHoareTripleChecker+Valid, 146 SdHoareTripleChecker+Invalid, 4890 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1465 IncrementalHoareTripleChecker+Valid, 3425 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.3s IncrementalHoareTripleChecker+Time [2023-04-02 08:14:50,024 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3101 Valid, 146 Invalid, 4890 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1465 Valid, 3425 Invalid, 0 Unknown, 0 Unchecked, 5.3s Time] [2023-04-02 08:14:50,024 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2023-04-02 08:14:50,024 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2023-04-02 08:14:50,024 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-04-02 08:14:50,025 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2023-04-02 08:14:50,025 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 80 [2023-04-02 08:14:50,025 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 08:14:50,025 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-04-02 08:14:50,025 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 5.555555555555555) internal successors, (50), 3 states have internal predecessors, (50), 3 states have call successors, (14), 9 states have call predecessors, (14), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2023-04-02 08:14:50,025 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2023-04-02 08:14:50,025 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-04-02 08:14:50,027 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-04-02 08:14:50,027 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-04-02 08:14:50,029 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2023-04-02 08:15:00,729 WARN L223 SmtUtils]: Spent 10.27s on a formula simplification. DAG size of input: 193 DAG size of output: 199 (called from [L 182] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.or) [2023-04-02 08:15:13,951 WARN L223 SmtUtils]: Spent 10.16s on a formula simplification. DAG size of input: 193 DAG size of output: 199 (called from [L 182] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.or) [2023-04-02 08:15:27,146 WARN L223 SmtUtils]: Spent 10.18s on a formula simplification. DAG size of input: 193 DAG size of output: 199 (called from [L 182] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.or) [2023-04-02 08:15:37,229 WARN L223 SmtUtils]: Spent 10.08s on a formula simplification. DAG size of input: 193 DAG size of output: 199 (called from [L 182] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.or) [2023-04-02 08:15:47,320 WARN L223 SmtUtils]: Spent 10.09s on a formula simplification. DAG size of input: 193 DAG size of output: 199 (called from [L 182] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.or) [2023-04-02 08:16:07,677 WARN L223 SmtUtils]: Spent 10.70s on a formula simplification. DAG size of input: 193 DAG size of output: 199 (called from [L 182] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.or) [2023-04-02 08:16:18,679 WARN L223 SmtUtils]: Spent 11.00s on a formula simplification. DAG size of input: 193 DAG size of output: 199 (called from [L 182] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.or) [2023-04-02 08:16:29,254 WARN L223 SmtUtils]: Spent 10.57s on a formula simplification. DAG size of input: 193 DAG size of output: 199 (called from [L 182] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.or) [2023-04-02 08:16:48,760 WARN L223 SmtUtils]: Spent 10.75s on a formula simplification. DAG size of input: 193 DAG size of output: 199 (called from [L 182] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.or) [2023-04-02 08:17:06,208 WARN L223 SmtUtils]: Spent 10.88s on a formula simplification. DAG size of input: 193 DAG size of output: 199 (called from [L 182] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.or) [2023-04-02 08:17:17,695 WARN L223 SmtUtils]: Spent 10.34s on a formula simplification. DAG size of input: 193 DAG size of output: 199 (called from [L 182] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.or) [2023-04-02 08:17:28,732 WARN L223 SmtUtils]: Spent 11.04s on a formula simplification. DAG size of input: 193 DAG size of output: 199 (called from [L 182] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.or) [2023-04-02 08:17:42,328 WARN L223 SmtUtils]: Spent 10.50s on a formula simplification. DAG size of input: 193 DAG size of output: 199 (called from [L 182] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.or) [2023-04-02 08:17:52,756 WARN L223 SmtUtils]: Spent 10.43s on a formula simplification. DAG size of input: 193 DAG size of output: 199 (called from [L 182] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.or) [2023-04-02 08:18:03,472 WARN L223 SmtUtils]: Spent 10.71s on a formula simplification. DAG size of input: 193 DAG size of output: 199 (called from [L 182] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.or) [2023-04-02 08:18:13,935 WARN L223 SmtUtils]: Spent 10.46s on a formula simplification. DAG size of input: 193 DAG size of output: 199 (called from [L 182] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.or)