/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/default/taipan/svcomp-Reach-32bit-Taipan_Default.epf -tc ../../../trunk/examples/toolchains/AutomizerC.xml --sifa.abstract.domain OctagonDomain -i ../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--isdn--hardware--mISDN--w6692.ko-entry_point.cil.out.i -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-f954360 [2023-04-03 06:12:27,982 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-04-03 06:12:27,983 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-04-03 06:12:28,008 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-04-03 06:12:28,009 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-04-03 06:12:28,010 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-04-03 06:12:28,011 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-04-03 06:12:28,012 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-04-03 06:12:28,014 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-04-03 06:12:28,014 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-04-03 06:12:28,015 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-04-03 06:12:28,016 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-04-03 06:12:28,016 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-04-03 06:12:28,017 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-04-03 06:12:28,018 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-04-03 06:12:28,019 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-04-03 06:12:28,020 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-04-03 06:12:28,020 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-04-03 06:12:28,022 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-04-03 06:12:28,024 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-04-03 06:12:28,025 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-04-03 06:12:28,026 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-04-03 06:12:28,027 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-04-03 06:12:28,028 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-04-03 06:12:28,037 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-04-03 06:12:28,037 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-04-03 06:12:28,037 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-04-03 06:12:28,038 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-04-03 06:12:28,039 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-04-03 06:12:28,039 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-04-03 06:12:28,040 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-04-03 06:12:28,040 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-04-03 06:12:28,041 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-04-03 06:12:28,042 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-04-03 06:12:28,042 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-04-03 06:12:28,043 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-04-03 06:12:28,043 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-04-03 06:12:28,044 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-04-03 06:12:28,044 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-04-03 06:12:28,055 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-04-03 06:12:28,056 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-04-03 06:12:28,059 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/taipan/svcomp-Reach-32bit-Taipan_Default.epf [2023-04-03 06:12:28,096 INFO L113 SettingsManager]: Loading preferences was successful [2023-04-03 06:12:28,096 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-04-03 06:12:28,096 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-04-03 06:12:28,097 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-04-03 06:12:28,097 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-04-03 06:12:28,097 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-04-03 06:12:28,098 INFO L138 SettingsManager]: * User list type=DISABLED [2023-04-03 06:12:28,098 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-04-03 06:12:28,098 INFO L138 SettingsManager]: * Explicit value domain=true [2023-04-03 06:12:28,098 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-04-03 06:12:28,099 INFO L138 SettingsManager]: * Octagon Domain=false [2023-04-03 06:12:28,099 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2023-04-03 06:12:28,099 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-04-03 06:12:28,099 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-04-03 06:12:28,099 INFO L138 SettingsManager]: * Interval Domain=false [2023-04-03 06:12:28,099 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-04-03 06:12:28,100 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-04-03 06:12:28,100 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2023-04-03 06:12:28,101 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-04-03 06:12:28,101 INFO L138 SettingsManager]: * sizeof long=4 [2023-04-03 06:12:28,101 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-04-03 06:12:28,101 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-04-03 06:12:28,101 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-04-03 06:12:28,102 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-04-03 06:12:28,102 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-04-03 06:12:28,102 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-04-03 06:12:28,102 INFO L138 SettingsManager]: * sizeof long double=12 [2023-04-03 06:12:28,102 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-04-03 06:12:28,102 INFO L138 SettingsManager]: * Use constant arrays=true [2023-04-03 06:12:28,102 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-04-03 06:12:28,103 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-04-03 06:12:28,103 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-04-03 06:12:28,103 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-04-03 06:12:28,103 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-04-03 06:12:28,103 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2023-04-03 06:12:28,103 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-04-03 06:12:28,103 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-04-03 06:12:28,104 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-04-03 06:12:28,104 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-04-03 06:12:28,104 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-04-03 06:12:28,104 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-04-03 06:12:28,104 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Abstract Domain -> OctagonDomain [2023-04-03 06:12:28,352 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-04-03 06:12:28,374 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-04-03 06:12:28,376 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-04-03 06:12:28,377 INFO L271 PluginConnector]: Initializing CDTParser... [2023-04-03 06:12:28,379 INFO L275 PluginConnector]: CDTParser initialized [2023-04-03 06:12:28,380 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--isdn--hardware--mISDN--w6692.ko-entry_point.cil.out.i [2023-04-03 06:12:29,623 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-04-03 06:12:30,135 INFO L351 CDTParser]: Found 1 translation units. [2023-04-03 06:12:30,136 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--isdn--hardware--mISDN--w6692.ko-entry_point.cil.out.i [2023-04-03 06:12:30,176 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4d92b9ff6/1d918051467e471385a13e1ed4327104/FLAGf829506bb [2023-04-03 06:12:30,191 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4d92b9ff6/1d918051467e471385a13e1ed4327104 [2023-04-03 06:12:30,193 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-04-03 06:12:30,197 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2023-04-03 06:12:30,199 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-04-03 06:12:30,199 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-04-03 06:12:30,203 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-04-03 06:12:30,204 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.04 06:12:30" (1/1) ... [2023-04-03 06:12:30,205 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7b2008f5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.04 06:12:30, skipping insertion in model container [2023-04-03 06:12:30,205 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.04 06:12:30" (1/1) ... [2023-04-03 06:12:30,213 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-04-03 06:12:30,342 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-04-03 06:12:32,326 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--isdn--hardware--mISDN--w6692.ko-entry_point.cil.out.i[284626,284639] [2023-04-03 06:12:32,415 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-04-03 06:12:32,443 INFO L203 MainTranslator]: Completed pre-run [2023-04-03 06:12:32,737 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--isdn--hardware--mISDN--w6692.ko-entry_point.cil.out.i[284626,284639] [2023-04-03 06:12:32,751 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-04-03 06:12:32,900 INFO L208 MainTranslator]: Completed translation [2023-04-03 06:12:32,900 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.04 06:12:32 WrapperNode [2023-04-03 06:12:32,900 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-04-03 06:12:32,901 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-04-03 06:12:32,902 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-04-03 06:12:32,902 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-04-03 06:12:32,913 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.04 06:12:32" (1/1) ... [2023-04-03 06:12:32,913 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.04 06:12:32" (1/1) ... [2023-04-03 06:12:33,055 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.04 06:12:32" (1/1) ... [2023-04-03 06:12:33,056 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.04 06:12:32" (1/1) ... [2023-04-03 06:12:33,193 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.04 06:12:32" (1/1) ... [2023-04-03 06:12:33,217 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.04 06:12:32" (1/1) ... [2023-04-03 06:12:33,242 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.04 06:12:32" (1/1) ... [2023-04-03 06:12:33,264 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.04 06:12:32" (1/1) ... [2023-04-03 06:12:33,295 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-04-03 06:12:33,297 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-04-03 06:12:33,297 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-04-03 06:12:33,297 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-04-03 06:12:33,298 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.04 06:12:32" (1/1) ... [2023-04-03 06:12:33,306 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-04-03 06:12:33,317 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-03 06:12:33,332 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-04-03 06:12:33,346 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-04-03 06:12:33,385 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2023-04-03 06:12:33,385 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-04-03 06:12:33,385 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2023-04-03 06:12:33,385 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~TO~VOID [2023-04-03 06:12:33,386 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2023-04-03 06:12:33,386 INFO L138 BoogieDeclarations]: Found implementation of procedure test_and_set_bit [2023-04-03 06:12:33,386 INFO L138 BoogieDeclarations]: Found implementation of procedure test_and_clear_bit [2023-04-03 06:12:33,386 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2023-04-03 06:12:33,386 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-04-03 06:12:33,386 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2023-04-03 06:12:33,386 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2023-04-03 06:12:33,386 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_zalloc [2023-04-03 06:12:33,386 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_memset [2023-04-03 06:12:33,386 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2023-04-03 06:12:33,386 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_ulong [2023-04-03 06:12:33,387 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2023-04-03 06:12:33,387 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2023-04-03 06:12:33,387 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add [2023-04-03 06:12:33,387 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add_tail [2023-04-03 06:12:33,388 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2023-04-03 06:12:33,388 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_5 [2023-04-03 06:12:33,388 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_9 [2023-04-03 06:12:33,388 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irqrestore_12 [2023-04-03 06:12:33,388 INFO L138 BoogieDeclarations]: Found implementation of procedure queue_work [2023-04-03 06:12:33,388 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule_work [2023-04-03 06:12:33,388 INFO L138 BoogieDeclarations]: Found implementation of procedure outb [2023-04-03 06:12:33,388 INFO L138 BoogieDeclarations]: Found implementation of procedure inb [2023-04-03 06:12:33,388 INFO L138 BoogieDeclarations]: Found implementation of procedure outsb [2023-04-03 06:12:33,388 INFO L138 BoogieDeclarations]: Found implementation of procedure insb [2023-04-03 06:12:33,389 INFO L138 BoogieDeclarations]: Found implementation of procedure kobject_name [2023-04-03 06:12:33,389 INFO L138 BoogieDeclarations]: Found implementation of procedure request_irq [2023-04-03 06:12:33,389 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_name [2023-04-03 06:12:33,389 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_get_drvdata [2023-04-03 06:12:33,389 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_set_drvdata [2023-04-03 06:12:33,389 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_get_drvdata [2023-04-03 06:12:33,389 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_drvdata [2023-04-03 06:12:33,390 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_name [2023-04-03 06:12:33,390 INFO L138 BoogieDeclarations]: Found implementation of procedure set_channelmap [2023-04-03 06:12:33,390 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_reserve [2023-04-03 06:12:33,390 INFO L138 BoogieDeclarations]: Found implementation of procedure mI_alloc_skb [2023-04-03 06:12:33,390 INFO L138 BoogieDeclarations]: Found implementation of procedure _alloc_mISDN_skb [2023-04-03 06:12:33,390 INFO L138 BoogieDeclarations]: Found implementation of procedure _queue_data [2023-04-03 06:12:33,390 INFO L138 BoogieDeclarations]: Found implementation of procedure _set_debug [2023-04-03 06:12:33,390 INFO L138 BoogieDeclarations]: Found implementation of procedure set_debug [2023-04-03 06:12:33,391 INFO L138 BoogieDeclarations]: Found implementation of procedure ReadW6692 [2023-04-03 06:12:33,391 INFO L138 BoogieDeclarations]: Found implementation of procedure WriteW6692 [2023-04-03 06:12:33,391 INFO L138 BoogieDeclarations]: Found implementation of procedure ReadW6692B [2023-04-03 06:12:33,391 INFO L138 BoogieDeclarations]: Found implementation of procedure WriteW6692B [2023-04-03 06:12:33,392 INFO L138 BoogieDeclarations]: Found implementation of procedure enable_hwirq [2023-04-03 06:12:33,392 INFO L138 BoogieDeclarations]: Found implementation of procedure disable_hwirq [2023-04-03 06:12:33,392 INFO L138 BoogieDeclarations]: Found implementation of procedure W6692Version [2023-04-03 06:12:33,392 INFO L138 BoogieDeclarations]: Found implementation of procedure w6692_led_handler [2023-04-03 06:12:33,392 INFO L138 BoogieDeclarations]: Found implementation of procedure ph_command [2023-04-03 06:12:33,392 INFO L138 BoogieDeclarations]: Found implementation of procedure W6692_new_ph [2023-04-03 06:12:33,393 INFO L138 BoogieDeclarations]: Found implementation of procedure W6692_ph_bh [2023-04-03 06:12:33,393 INFO L138 BoogieDeclarations]: Found implementation of procedure W6692_empty_Dfifo [2023-04-03 06:12:33,393 INFO L138 BoogieDeclarations]: Found implementation of procedure W6692_fill_Dfifo [2023-04-03 06:12:33,393 INFO L138 BoogieDeclarations]: Found implementation of procedure d_retransmit [2023-04-03 06:12:33,393 INFO L138 BoogieDeclarations]: Found implementation of procedure handle_rxD [2023-04-03 06:12:33,393 INFO L138 BoogieDeclarations]: Found implementation of procedure handle_txD [2023-04-03 06:12:33,393 INFO L138 BoogieDeclarations]: Found implementation of procedure handle_statusD [2023-04-03 06:12:33,393 INFO L138 BoogieDeclarations]: Found implementation of procedure W6692_empty_Bfifo [2023-04-03 06:12:33,393 INFO L138 BoogieDeclarations]: Found implementation of procedure W6692_fill_Bfifo [2023-04-03 06:12:33,393 INFO L138 BoogieDeclarations]: Found implementation of procedure disable_pots [2023-04-03 06:12:33,393 INFO L138 BoogieDeclarations]: Found implementation of procedure w6692_mode [2023-04-03 06:12:33,394 INFO L138 BoogieDeclarations]: Found implementation of procedure send_next [2023-04-03 06:12:33,394 INFO L138 BoogieDeclarations]: Found implementation of procedure W6692B_interrupt [2023-04-03 06:12:33,394 INFO L138 BoogieDeclarations]: Found implementation of procedure w6692_irq [2023-04-03 06:12:33,394 INFO L138 BoogieDeclarations]: Found implementation of procedure dbusy_timer_handler [2023-04-03 06:12:33,394 INFO L138 BoogieDeclarations]: Found implementation of procedure initW6692 [2023-04-03 06:12:33,394 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_w6692 [2023-04-03 06:12:33,394 INFO L138 BoogieDeclarations]: Found implementation of procedure init_card [2023-04-03 06:12:33,394 INFO L138 BoogieDeclarations]: Found implementation of procedure w6692_l2l1B [2023-04-03 06:12:33,394 INFO L138 BoogieDeclarations]: Found implementation of procedure channel_bctrl [2023-04-03 06:12:33,394 INFO L138 BoogieDeclarations]: Found implementation of procedure open_bchannel [2023-04-03 06:12:33,395 INFO L138 BoogieDeclarations]: Found implementation of procedure channel_ctrl [2023-04-03 06:12:33,395 INFO L138 BoogieDeclarations]: Found implementation of procedure w6692_bctrl [2023-04-03 06:12:33,395 INFO L138 BoogieDeclarations]: Found implementation of procedure w6692_l2l1D [2023-04-03 06:12:33,395 INFO L138 BoogieDeclarations]: Found implementation of procedure w6692_l1callback [2023-04-03 06:12:33,395 INFO L138 BoogieDeclarations]: Found implementation of procedure open_dchannel [2023-04-03 06:12:33,395 INFO L138 BoogieDeclarations]: Found implementation of procedure w6692_dctrl [2023-04-03 06:12:33,395 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_w6692 [2023-04-03 06:12:33,395 INFO L138 BoogieDeclarations]: Found implementation of procedure release_card [2023-04-03 06:12:33,395 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_instance [2023-04-03 06:12:33,395 INFO L138 BoogieDeclarations]: Found implementation of procedure w6692_probe [2023-04-03 06:12:33,395 INFO L138 BoogieDeclarations]: Found implementation of procedure w6692_remove_pci [2023-04-03 06:12:33,396 INFO L138 BoogieDeclarations]: Found implementation of procedure w6692_init [2023-04-03 06:12:33,396 INFO L138 BoogieDeclarations]: Found implementation of procedure w6692_cleanup [2023-04-03 06:12:33,396 INFO L138 BoogieDeclarations]: Found implementation of procedure disable_suitable_timer_3 [2023-04-03 06:12:33,396 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize_kernel_param_ops_5 [2023-04-03 06:12:33,396 INFO L138 BoogieDeclarations]: Found implementation of procedure choose_timer_2 [2023-04-03 06:12:33,396 INFO L138 BoogieDeclarations]: Found implementation of procedure reg_timer_2 [2023-04-03 06:12:33,396 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_pending_timer_2 [2023-04-03 06:12:33,396 INFO L138 BoogieDeclarations]: Found implementation of procedure choose_timer_3 [2023-04-03 06:12:33,396 INFO L138 BoogieDeclarations]: Found implementation of procedure disable_suitable_timer_2 [2023-04-03 06:12:33,396 INFO L138 BoogieDeclarations]: Found implementation of procedure disable_suitable_irq_1 [2023-04-03 06:12:33,396 INFO L138 BoogieDeclarations]: Found implementation of procedure reg_check_1 [2023-04-03 06:12:33,415 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_suitable_irq_1 [2023-04-03 06:12:33,415 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_irq_1 [2023-04-03 06:12:33,415 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_pending_timer_3 [2023-04-03 06:12:33,415 INFO L138 BoogieDeclarations]: Found implementation of procedure reg_timer_3 [2023-04-03 06:12:33,415 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_pci_driver_4 [2023-04-03 06:12:33,415 INFO L138 BoogieDeclarations]: Found implementation of procedure choose_interrupt_1 [2023-04-03 06:12:33,416 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2023-04-03 06:12:33,416 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2023-04-03 06:12:33,416 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2023-04-03 06:12:33,416 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2023-04-03 06:12:33,416 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2023-04-03 06:12:33,416 INFO L138 BoogieDeclarations]: Found implementation of procedure alloc_skb [2023-04-03 06:12:33,416 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_pskb_expand_head_26 [2023-04-03 06:12:33,417 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_skb_clone_28 [2023-04-03 06:12:33,417 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_skb_copy_30 [2023-04-03 06:12:33,417 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv___netdev_alloc_skb_31 [2023-04-03 06:12:33,417 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv___netdev_alloc_skb_32 [2023-04-03 06:12:33,417 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv___netdev_alloc_skb_33 [2023-04-03 06:12:33,417 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_pskb_expand_head_34 [2023-04-03 06:12:33,418 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_pskb_expand_head_35 [2023-04-03 06:12:33,418 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_skb_clone_36 [2023-04-03 06:12:33,418 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_del_timer_37 [2023-04-03 06:12:33,418 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_del_timer_38 [2023-04-03 06:12:33,418 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_del_timer_39 [2023-04-03 06:12:33,419 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_request_irq_40 [2023-04-03 06:12:33,421 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_irq_41 [2023-04-03 06:12:33,422 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_del_timer_42 [2023-04-03 06:12:33,427 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_irq_43 [2023-04-03 06:12:33,427 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_irq_44 [2023-04-03 06:12:33,427 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv___pci_register_driver_45 [2023-04-03 06:12:33,427 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_pci_unregister_driver_46 [2023-04-03 06:12:33,427 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2023-04-03 06:12:33,427 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2023-04-03 06:12:33,427 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_err_ptr [2023-04-03 06:12:33,427 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_ptr_err [2023-04-03 06:12:33,428 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err_or_null [2023-04-03 06:12:33,428 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags [2023-04-03 06:12:33,428 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags_and_return_some_page [2023-04-03 06:12:33,428 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_nonatomic [2023-04-03 06:12:33,428 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock [2023-04-03 06:12:33,428 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock [2023-04-03 06:12:33,428 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_trylock [2023-04-03 06:12:33,428 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2023-04-03 06:12:33,428 INFO L138 BoogieDeclarations]: Found implementation of procedure __dynamic_pr_debug [2023-04-03 06:12:33,428 INFO L138 BoogieDeclarations]: Found implementation of procedure __list_add [2023-04-03 06:12:33,428 INFO L138 BoogieDeclarations]: Found implementation of procedure __pci_register_driver [2023-04-03 06:12:33,428 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2023-04-03 06:12:33,428 INFO L138 BoogieDeclarations]: Found implementation of procedure __release_region [2023-04-03 06:12:33,428 INFO L138 BoogieDeclarations]: Found implementation of procedure __request_region [2023-04-03 06:12:33,428 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_read_lock [2023-04-03 06:12:33,429 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_read_unlock [2023-04-03 06:12:33,429 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock [2023-04-03 06:12:33,429 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_unlock [2023-04-03 06:12:33,429 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_unlock_irqrestore [2023-04-03 06:12:33,429 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_write_lock_irqsave [2023-04-03 06:12:33,429 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_write_unlock_irqrestore [2023-04-03 06:12:33,429 INFO L138 BoogieDeclarations]: Found implementation of procedure add_timer [2023-04-03 06:12:33,429 INFO L138 BoogieDeclarations]: Found implementation of procedure bchannel_get_rxbuf [2023-04-03 06:12:33,429 INFO L138 BoogieDeclarations]: Found implementation of procedure bchannel_senddata [2023-04-03 06:12:33,429 INFO L138 BoogieDeclarations]: Found implementation of procedure cancel_work_sync [2023-04-03 06:12:33,429 INFO L138 BoogieDeclarations]: Found implementation of procedure consume_skb [2023-04-03 06:12:33,429 INFO L138 BoogieDeclarations]: Found implementation of procedure create_l1 [2023-04-03 06:12:33,429 INFO L138 BoogieDeclarations]: Found implementation of procedure dchannel_senddata [2023-04-03 06:12:33,429 INFO L138 BoogieDeclarations]: Found implementation of procedure del_timer [2023-04-03 06:12:33,430 INFO L138 BoogieDeclarations]: Found implementation of procedure free_irq [2023-04-03 06:12:33,430 INFO L138 BoogieDeclarations]: Found implementation of procedure get_next_bframe [2023-04-03 06:12:33,430 INFO L138 BoogieDeclarations]: Found implementation of procedure get_next_dframe [2023-04-03 06:12:33,430 INFO L138 BoogieDeclarations]: Found implementation of procedure l1_event [2023-04-03 06:12:33,430 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2023-04-03 06:12:33,430 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize [2023-04-03 06:12:33,430 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_shutdown_4 [2023-04-03 06:12:33,430 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_some_page [2023-04-03 06:12:33,430 INFO L138 BoogieDeclarations]: Found implementation of procedure list_del [2023-04-03 06:12:33,430 INFO L138 BoogieDeclarations]: Found implementation of procedure mISDN_clear_bchannel [2023-04-03 06:12:33,430 INFO L138 BoogieDeclarations]: Found implementation of procedure mISDN_ctrl_bchannel [2023-04-03 06:12:33,430 INFO L138 BoogieDeclarations]: Found implementation of procedure mISDN_freebchannel [2023-04-03 06:12:33,430 INFO L138 BoogieDeclarations]: Found implementation of procedure mISDN_freedchannel [2023-04-03 06:12:33,430 INFO L138 BoogieDeclarations]: Found implementation of procedure mISDN_initbchannel [2023-04-03 06:12:33,430 INFO L138 BoogieDeclarations]: Found implementation of procedure mISDN_initdchannel [2023-04-03 06:12:33,431 INFO L138 BoogieDeclarations]: Found implementation of procedure mISDN_register_device [2023-04-03 06:12:33,431 INFO L138 BoogieDeclarations]: Found implementation of procedure mISDN_unregister_device [2023-04-03 06:12:33,431 INFO L138 BoogieDeclarations]: Found implementation of procedure module_put [2023-04-03 06:12:33,431 INFO L138 BoogieDeclarations]: Found implementation of procedure msleep_interruptible [2023-04-03 06:12:33,431 INFO L138 BoogieDeclarations]: Found implementation of procedure param_get_uint [2023-04-03 06:12:33,431 INFO L138 BoogieDeclarations]: Found implementation of procedure param_set_uint [2023-04-03 06:12:33,431 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_device [2023-04-03 06:12:33,431 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_enable_device [2023-04-03 06:12:33,431 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_unregister_driver [2023-04-03 06:12:33,431 INFO L138 BoogieDeclarations]: Found implementation of procedure print_hex_dump [2023-04-03 06:12:33,431 INFO L138 BoogieDeclarations]: Found implementation of procedure printk [2023-04-03 06:12:33,431 INFO L138 BoogieDeclarations]: Found implementation of procedure queue_ch_frame [2023-04-03 06:12:33,431 INFO L138 BoogieDeclarations]: Found implementation of procedure queue_work_on [2023-04-03 06:12:33,431 INFO L138 BoogieDeclarations]: Found implementation of procedure recv_Bchannel [2023-04-03 06:12:33,432 INFO L138 BoogieDeclarations]: Found implementation of procedure recv_Dchannel [2023-04-03 06:12:33,432 INFO L138 BoogieDeclarations]: Found implementation of procedure request_threaded_irq [2023-04-03 06:12:33,432 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_put [2023-04-03 06:12:33,432 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_queue_purge [2023-04-03 06:12:33,432 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_trim [2023-04-03 06:12:33,432 INFO L138 BoogieDeclarations]: Found implementation of procedure try_module_get [2023-04-03 06:12:33,432 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2023-04-03 06:12:33,432 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2023-04-03 06:12:33,432 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2023-04-03 06:12:33,432 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2023-04-03 06:12:33,432 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2023-04-03 06:12:33,432 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2023-04-03 06:12:33,432 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_perror_fail [2023-04-03 06:12:33,433 INFO L130 BoogieDeclarations]: Found specification of procedure __assert [2023-04-03 06:12:33,433 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2023-04-03 06:12:33,433 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-04-03 06:12:33,433 INFO L130 BoogieDeclarations]: Found specification of procedure __builtin_return_address [2023-04-03 06:12:33,433 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2023-04-03 06:12:33,433 INFO L130 BoogieDeclarations]: Found specification of procedure test_and_set_bit [2023-04-03 06:12:33,433 INFO L130 BoogieDeclarations]: Found specification of procedure test_and_clear_bit [2023-04-03 06:12:33,433 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2023-04-03 06:12:33,433 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-04-03 06:12:33,433 INFO L130 BoogieDeclarations]: Found specification of procedure printk [2023-04-03 06:12:33,433 INFO L130 BoogieDeclarations]: Found specification of procedure __dynamic_pr_debug [2023-04-03 06:12:33,433 INFO L130 BoogieDeclarations]: Found specification of procedure print_hex_dump [2023-04-03 06:12:33,433 INFO L130 BoogieDeclarations]: Found specification of procedure snprintf [2023-04-03 06:12:33,433 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock [2023-04-03 06:12:33,434 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock [2023-04-03 06:12:33,434 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2023-04-03 06:12:33,434 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2023-04-03 06:12:33,434 INFO L130 BoogieDeclarations]: Found specification of procedure memset [2023-04-03 06:12:33,434 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2023-04-03 06:12:33,434 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_ulong [2023-04-03 06:12:33,434 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-04-03 06:12:33,434 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2023-04-03 06:12:33,434 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-04-03 06:12:33,434 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2023-04-03 06:12:33,434 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2023-04-03 06:12:33,434 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_zalloc [2023-04-03 06:12:33,434 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_memset [2023-04-03 06:12:33,434 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2023-04-03 06:12:33,435 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2023-04-03 06:12:33,435 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_ulong [2023-04-03 06:12:33,435 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2023-04-03 06:12:33,435 INFO L130 BoogieDeclarations]: Found specification of procedure __list_add [2023-04-03 06:12:33,435 INFO L130 BoogieDeclarations]: Found specification of procedure list_add [2023-04-03 06:12:33,435 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-04-03 06:12:33,435 INFO L130 BoogieDeclarations]: Found specification of procedure list_add_tail [2023-04-03 06:12:33,435 INFO L130 BoogieDeclarations]: Found specification of procedure list_del [2023-04-03 06:12:33,435 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy [2023-04-03 06:12:33,435 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2023-04-03 06:12:33,435 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock [2023-04-03 06:12:33,435 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_unlock [2023-04-03 06:12:33,435 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_unlock_irqrestore [2023-04-03 06:12:33,435 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_read_lock [2023-04-03 06:12:33,436 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_write_lock_irqsave [2023-04-03 06:12:33,436 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_read_unlock [2023-04-03 06:12:33,436 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_write_unlock_irqrestore [2023-04-03 06:12:33,436 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2023-04-03 06:12:33,436 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_5 [2023-04-03 06:12:33,436 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2023-04-03 06:12:33,436 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_9 [2023-04-03 06:12:33,436 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2023-04-03 06:12:33,436 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irqrestore_12 [2023-04-03 06:12:33,436 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2023-04-03 06:12:33,436 INFO L130 BoogieDeclarations]: Found specification of procedure del_timer [2023-04-03 06:12:33,436 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_del_timer_37 [2023-04-03 06:12:33,438 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_del_timer_38 [2023-04-03 06:12:33,438 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_del_timer_39 [2023-04-03 06:12:33,438 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_del_timer_42 [2023-04-03 06:12:33,438 INFO L130 BoogieDeclarations]: Found specification of procedure add_timer [2023-04-03 06:12:33,438 INFO L130 BoogieDeclarations]: Found specification of procedure queue_work_on [2023-04-03 06:12:33,438 INFO L130 BoogieDeclarations]: Found specification of procedure cancel_work_sync [2023-04-03 06:12:33,439 INFO L130 BoogieDeclarations]: Found specification of procedure queue_work [2023-04-03 06:12:33,439 INFO L130 BoogieDeclarations]: Found specification of procedure schedule_work [2023-04-03 06:12:33,439 INFO L130 BoogieDeclarations]: Found specification of procedure __request_region [2023-04-03 06:12:33,439 INFO L130 BoogieDeclarations]: Found specification of procedure __release_region [2023-04-03 06:12:33,439 INFO L130 BoogieDeclarations]: Found specification of procedure outb [2023-04-03 06:12:33,439 INFO L130 BoogieDeclarations]: Found specification of procedure inb [2023-04-03 06:12:33,439 INFO L130 BoogieDeclarations]: Found specification of procedure outsb [2023-04-03 06:12:33,439 INFO L130 BoogieDeclarations]: Found specification of procedure insb [2023-04-03 06:12:33,439 INFO L130 BoogieDeclarations]: Found specification of procedure kobject_name [2023-04-03 06:12:33,439 INFO L130 BoogieDeclarations]: Found specification of procedure param_set_uint [2023-04-03 06:12:33,439 INFO L130 BoogieDeclarations]: Found specification of procedure param_get_uint [2023-04-03 06:12:33,439 INFO L130 BoogieDeclarations]: Found specification of procedure try_module_get [2023-04-03 06:12:33,439 INFO L130 BoogieDeclarations]: Found specification of procedure module_put [2023-04-03 06:12:33,439 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2023-04-03 06:12:33,440 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2023-04-03 06:12:33,440 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags [2023-04-03 06:12:33,440 INFO L130 BoogieDeclarations]: Found specification of procedure disable_suitable_timer_3 [2023-04-03 06:12:33,440 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize_kernel_param_ops_5 [2023-04-03 06:12:33,440 INFO L130 BoogieDeclarations]: Found specification of procedure choose_timer_2 [2023-04-03 06:12:33,440 INFO L130 BoogieDeclarations]: Found specification of procedure reg_timer_2 [2023-04-03 06:12:33,440 INFO L130 BoogieDeclarations]: Found specification of procedure activate_pending_timer_2 [2023-04-03 06:12:33,440 INFO L130 BoogieDeclarations]: Found specification of procedure choose_timer_3 [2023-04-03 06:12:33,440 INFO L130 BoogieDeclarations]: Found specification of procedure disable_suitable_timer_2 [2023-04-03 06:12:33,440 INFO L130 BoogieDeclarations]: Found specification of procedure disable_suitable_irq_1 [2023-04-03 06:12:33,440 INFO L130 BoogieDeclarations]: Found specification of procedure reg_check_1 [2023-04-03 06:12:33,440 INFO L130 BoogieDeclarations]: Found specification of procedure activate_suitable_irq_1 [2023-04-03 06:12:33,440 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_irq_1 [2023-04-03 06:12:33,440 INFO L130 BoogieDeclarations]: Found specification of procedure activate_pending_timer_3 [2023-04-03 06:12:33,440 INFO L130 BoogieDeclarations]: Found specification of procedure reg_timer_3 [2023-04-03 06:12:33,441 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_pci_driver_4 [2023-04-03 06:12:33,441 INFO L130 BoogieDeclarations]: Found specification of procedure choose_interrupt_1 [2023-04-03 06:12:33,441 INFO L130 BoogieDeclarations]: Found specification of procedure request_threaded_irq [2023-04-03 06:12:33,441 INFO L130 BoogieDeclarations]: Found specification of procedure request_irq [2023-04-03 06:12:33,441 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_request_irq_40 [2023-04-03 06:12:33,441 INFO L130 BoogieDeclarations]: Found specification of procedure free_irq [2023-04-03 06:12:33,441 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_irq_41 [2023-04-03 06:12:33,441 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_irq_43 [2023-04-03 06:12:33,441 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_irq_44 [2023-04-03 06:12:33,441 INFO L130 BoogieDeclarations]: Found specification of procedure dev_name [2023-04-03 06:12:33,441 INFO L130 BoogieDeclarations]: Found specification of procedure dev_get_drvdata [2023-04-03 06:12:33,441 INFO L130 BoogieDeclarations]: Found specification of procedure dev_set_drvdata [2023-04-03 06:12:33,441 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-04-03 06:12:33,441 INFO L130 BoogieDeclarations]: Found specification of procedure pci_enable_device [2023-04-03 06:12:33,441 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_device [2023-04-03 06:12:33,442 INFO L130 BoogieDeclarations]: Found specification of procedure __pci_register_driver [2023-04-03 06:12:33,442 INFO L130 BoogieDeclarations]: Found specification of procedure ldv___pci_register_driver_45 [2023-04-03 06:12:33,442 INFO L130 BoogieDeclarations]: Found specification of procedure pci_unregister_driver [2023-04-03 06:12:33,442 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_pci_unregister_driver_46 [2023-04-03 06:12:33,442 INFO L130 BoogieDeclarations]: Found specification of procedure pci_get_drvdata [2023-04-03 06:12:33,442 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_drvdata [2023-04-03 06:12:33,442 INFO L130 BoogieDeclarations]: Found specification of procedure pci_name [2023-04-03 06:12:33,442 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2023-04-03 06:12:33,442 INFO L130 BoogieDeclarations]: Found specification of procedure msleep_interruptible [2023-04-03 06:12:33,442 INFO L130 BoogieDeclarations]: Found specification of procedure set_channelmap [2023-04-03 06:12:33,442 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-04-03 06:12:33,442 INFO L130 BoogieDeclarations]: Found specification of procedure consume_skb [2023-04-03 06:12:33,442 INFO L130 BoogieDeclarations]: Found specification of procedure alloc_skb [2023-04-03 06:12:33,442 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_skb_clone_28 [2023-04-03 06:12:33,442 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_skb_clone_36 [2023-04-03 06:12:33,442 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_skb_copy_30 [2023-04-03 06:12:33,443 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_pskb_expand_head_26 [2023-04-03 06:12:33,443 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_pskb_expand_head_34 [2023-04-03 06:12:33,443 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_pskb_expand_head_35 [2023-04-03 06:12:33,443 INFO L130 BoogieDeclarations]: Found specification of procedure skb_put [2023-04-03 06:12:33,443 INFO L130 BoogieDeclarations]: Found specification of procedure skb_reserve [2023-04-03 06:12:33,443 INFO L130 BoogieDeclarations]: Found specification of procedure skb_trim [2023-04-03 06:12:33,443 INFO L130 BoogieDeclarations]: Found specification of procedure skb_queue_purge [2023-04-03 06:12:33,443 INFO L130 BoogieDeclarations]: Found specification of procedure ldv___netdev_alloc_skb_31 [2023-04-03 06:12:33,443 INFO L130 BoogieDeclarations]: Found specification of procedure ldv___netdev_alloc_skb_32 [2023-04-03 06:12:33,443 INFO L130 BoogieDeclarations]: Found specification of procedure ldv___netdev_alloc_skb_33 [2023-04-03 06:12:33,443 INFO L130 BoogieDeclarations]: Found specification of procedure mI_alloc_skb [2023-04-03 06:12:33,443 INFO L130 BoogieDeclarations]: Found specification of procedure _alloc_mISDN_skb [2023-04-03 06:12:33,443 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2023-04-03 06:12:33,443 INFO L130 BoogieDeclarations]: Found specification of procedure _queue_data [2023-04-03 06:12:33,443 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2023-04-03 06:12:33,443 INFO L130 BoogieDeclarations]: Found specification of procedure mISDN_register_device [2023-04-03 06:12:33,444 INFO L130 BoogieDeclarations]: Found specification of procedure mISDN_unregister_device [2023-04-03 06:12:33,444 INFO L130 BoogieDeclarations]: Found specification of procedure create_l1 [2023-04-03 06:12:33,444 INFO L130 BoogieDeclarations]: Found specification of procedure l1_event [2023-04-03 06:12:33,444 INFO L130 BoogieDeclarations]: Found specification of procedure mISDN_initdchannel [2023-04-03 06:12:33,444 INFO L130 BoogieDeclarations]: Found specification of procedure mISDN_initbchannel [2023-04-03 06:12:33,444 INFO L130 BoogieDeclarations]: Found specification of procedure mISDN_freedchannel [2023-04-03 06:12:33,444 INFO L130 BoogieDeclarations]: Found specification of procedure mISDN_clear_bchannel [2023-04-03 06:12:33,444 INFO L130 BoogieDeclarations]: Found specification of procedure mISDN_freebchannel [2023-04-03 06:12:33,444 INFO L130 BoogieDeclarations]: Found specification of procedure mISDN_ctrl_bchannel [2023-04-03 06:12:33,444 INFO L130 BoogieDeclarations]: Found specification of procedure queue_ch_frame [2023-04-03 06:12:33,444 INFO L130 BoogieDeclarations]: Found specification of procedure dchannel_senddata [2023-04-03 06:12:33,444 INFO L130 BoogieDeclarations]: Found specification of procedure bchannel_senddata [2023-04-03 06:12:33,444 INFO L130 BoogieDeclarations]: Found specification of procedure bchannel_get_rxbuf [2023-04-03 06:12:33,444 INFO L130 BoogieDeclarations]: Found specification of procedure recv_Dchannel [2023-04-03 06:12:33,444 INFO L130 BoogieDeclarations]: Found specification of procedure recv_Bchannel [2023-04-03 06:12:33,445 INFO L130 BoogieDeclarations]: Found specification of procedure get_next_bframe [2023-04-03 06:12:33,445 INFO L130 BoogieDeclarations]: Found specification of procedure get_next_dframe [2023-04-03 06:12:33,445 INFO L130 BoogieDeclarations]: Found specification of procedure _set_debug [2023-04-03 06:12:33,445 INFO L130 BoogieDeclarations]: Found specification of procedure set_debug [2023-04-03 06:12:33,445 INFO L130 BoogieDeclarations]: Found specification of procedure ReadW6692 [2023-04-03 06:12:33,445 INFO L130 BoogieDeclarations]: Found specification of procedure WriteW6692 [2023-04-03 06:12:33,445 INFO L130 BoogieDeclarations]: Found specification of procedure ReadW6692B [2023-04-03 06:12:33,445 INFO L130 BoogieDeclarations]: Found specification of procedure WriteW6692B [2023-04-03 06:12:33,445 INFO L130 BoogieDeclarations]: Found specification of procedure enable_hwirq [2023-04-03 06:12:33,445 INFO L130 BoogieDeclarations]: Found specification of procedure disable_hwirq [2023-04-03 06:12:33,445 INFO L130 BoogieDeclarations]: Found specification of procedure W6692Version [2023-04-03 06:12:33,445 INFO L130 BoogieDeclarations]: Found specification of procedure w6692_led_handler [2023-04-03 06:12:33,445 INFO L130 BoogieDeclarations]: Found specification of procedure ph_command [2023-04-03 06:12:33,445 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-04-03 06:12:33,445 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-04-03 06:12:33,445 INFO L130 BoogieDeclarations]: Found specification of procedure W6692_new_ph [2023-04-03 06:12:33,446 INFO L130 BoogieDeclarations]: Found specification of procedure W6692_ph_bh [2023-04-03 06:12:33,446 INFO L130 BoogieDeclarations]: Found specification of procedure W6692_empty_Dfifo [2023-04-03 06:12:33,446 INFO L130 BoogieDeclarations]: Found specification of procedure W6692_fill_Dfifo [2023-04-03 06:12:33,446 INFO L130 BoogieDeclarations]: Found specification of procedure d_retransmit [2023-04-03 06:12:33,446 INFO L130 BoogieDeclarations]: Found specification of procedure handle_rxD [2023-04-03 06:12:33,446 INFO L130 BoogieDeclarations]: Found specification of procedure handle_txD [2023-04-03 06:12:33,446 INFO L130 BoogieDeclarations]: Found specification of procedure handle_statusD [2023-04-03 06:12:33,449 INFO L130 BoogieDeclarations]: Found specification of procedure W6692_empty_Bfifo [2023-04-03 06:12:33,449 INFO L130 BoogieDeclarations]: Found specification of procedure W6692_fill_Bfifo [2023-04-03 06:12:33,450 INFO L130 BoogieDeclarations]: Found specification of procedure disable_pots [2023-04-03 06:12:33,450 INFO L130 BoogieDeclarations]: Found specification of procedure w6692_mode [2023-04-03 06:12:33,450 INFO L130 BoogieDeclarations]: Found specification of procedure send_next [2023-04-03 06:12:33,450 INFO L130 BoogieDeclarations]: Found specification of procedure W6692B_interrupt [2023-04-03 06:12:33,450 INFO L130 BoogieDeclarations]: Found specification of procedure w6692_irq [2023-04-03 06:12:33,450 INFO L130 BoogieDeclarations]: Found specification of procedure dbusy_timer_handler [2023-04-03 06:12:33,450 INFO L130 BoogieDeclarations]: Found specification of procedure initW6692 [2023-04-03 06:12:33,451 INFO L130 BoogieDeclarations]: Found specification of procedure reset_w6692 [2023-04-03 06:12:33,451 INFO L130 BoogieDeclarations]: Found specification of procedure init_card [2023-04-03 06:12:33,451 INFO L130 BoogieDeclarations]: Found specification of procedure w6692_l2l1B [2023-04-03 06:12:33,451 INFO L130 BoogieDeclarations]: Found specification of procedure channel_bctrl [2023-04-03 06:12:33,451 INFO L130 BoogieDeclarations]: Found specification of procedure open_bchannel [2023-04-03 06:12:33,451 INFO L130 BoogieDeclarations]: Found specification of procedure channel_ctrl [2023-04-03 06:12:33,451 INFO L130 BoogieDeclarations]: Found specification of procedure w6692_bctrl [2023-04-03 06:12:33,451 INFO L130 BoogieDeclarations]: Found specification of procedure w6692_l2l1D [2023-04-03 06:12:33,451 INFO L130 BoogieDeclarations]: Found specification of procedure w6692_l1callback [2023-04-03 06:12:33,451 INFO L130 BoogieDeclarations]: Found specification of procedure open_dchannel [2023-04-03 06:12:33,451 INFO L130 BoogieDeclarations]: Found specification of procedure w6692_dctrl [2023-04-03 06:12:33,451 INFO L130 BoogieDeclarations]: Found specification of procedure setup_w6692 [2023-04-03 06:12:33,452 INFO L130 BoogieDeclarations]: Found specification of procedure release_card [2023-04-03 06:12:33,452 INFO L130 BoogieDeclarations]: Found specification of procedure setup_instance [2023-04-03 06:12:33,452 INFO L130 BoogieDeclarations]: Found specification of procedure w6692_probe [2023-04-03 06:12:33,452 INFO L130 BoogieDeclarations]: Found specification of procedure w6692_remove_pci [2023-04-03 06:12:33,452 INFO L130 BoogieDeclarations]: Found specification of procedure w6692_init [2023-04-03 06:12:33,452 INFO L130 BoogieDeclarations]: Found specification of procedure w6692_cleanup [2023-04-03 06:12:33,453 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize [2023-04-03 06:12:33,453 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2023-04-03 06:12:33,453 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_shutdown_4 [2023-04-03 06:12:33,453 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~TO~VOID [2023-04-03 06:12:33,453 INFO L130 BoogieDeclarations]: Found specification of procedure main [2023-04-03 06:12:33,453 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2023-04-03 06:12:33,453 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2023-04-03 06:12:33,453 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_err_ptr [2023-04-03 06:12:33,453 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_ptr_err [2023-04-03 06:12:33,453 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err_or_null [2023-04-03 06:12:33,453 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_some_page [2023-04-03 06:12:33,453 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags_and_return_some_page [2023-04-03 06:12:33,453 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_nonatomic [2023-04-03 06:12:33,453 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_trylock [2023-04-03 06:12:33,453 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_bool [2023-04-03 06:12:33,453 INFO L130 BoogieDeclarations]: Found specification of procedure free [2023-04-03 06:12:33,454 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2023-04-03 06:12:33,454 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-04-03 06:12:33,454 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2023-04-03 06:12:33,454 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-04-03 06:12:33,454 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2023-04-03 06:12:33,454 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2023-04-03 06:12:33,454 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2023-04-03 06:12:33,454 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2023-04-03 06:12:34,081 INFO L236 CfgBuilder]: Building ICFG [2023-04-03 06:12:34,086 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-04-03 06:12:34,325 INFO L771 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2023-04-03 06:12:38,189 INFO L277 CfgBuilder]: Performing block encoding [2023-04-03 06:12:39,407 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-04-03 06:12:39,407 INFO L302 CfgBuilder]: Removed 5 assume(true) statements. [2023-04-03 06:12:39,413 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.04 06:12:39 BoogieIcfgContainer [2023-04-03 06:12:39,413 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-04-03 06:12:39,415 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-04-03 06:12:39,415 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-04-03 06:12:39,418 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-04-03 06:12:39,418 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.04 06:12:30" (1/3) ... [2023-04-03 06:12:39,419 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4e388db7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.04 06:12:39, skipping insertion in model container [2023-04-03 06:12:39,419 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.04 06:12:32" (2/3) ... [2023-04-03 06:12:39,420 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4e388db7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.04 06:12:39, skipping insertion in model container [2023-04-03 06:12:39,420 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.04 06:12:39" (3/3) ... [2023-04-03 06:12:39,421 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-4.2-rc1.tar.xz-43_2a-drivers--isdn--hardware--mISDN--w6692.ko-entry_point.cil.out.i [2023-04-03 06:12:39,440 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-04-03 06:12:39,440 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-04-03 06:12:39,524 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-04-03 06:12:39,530 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@53aa4ccb, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-04-03 06:12:39,530 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-04-03 06:12:39,542 INFO L276 IsEmpty]: Start isEmpty. Operand has 1638 states, 932 states have (on average 1.2918454935622317) internal successors, (1204), 1014 states have internal predecessors, (1204), 519 states have call successors, (519), 169 states have call predecessors, (519), 168 states have return successors, (513), 498 states have call predecessors, (513), 513 states have call successors, (513) [2023-04-03 06:12:39,553 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2023-04-03 06:12:39,553 INFO L187 NwaCegarLoop]: Found error trace [2023-04-03 06:12:39,554 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-03 06:12:39,555 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-03 06:12:39,559 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-03 06:12:39,560 INFO L85 PathProgramCache]: Analyzing trace with hash 655176775, now seen corresponding path program 1 times [2023-04-03 06:12:39,569 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-03 06:12:39,569 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [936761020] [2023-04-03 06:12:39,570 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-03 06:12:39,570 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-03 06:12:40,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-03 06:12:40,516 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2023-04-03 06:12:40,516 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-03 06:12:40,517 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [936761020] [2023-04-03 06:12:40,517 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [936761020] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-03 06:12:40,517 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-03 06:12:40,517 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-04-03 06:12:40,519 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [848906781] [2023-04-03 06:12:40,520 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-03 06:12:40,525 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-04-03 06:12:40,527 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-03 06:12:40,568 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-04-03 06:12:40,569 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-04-03 06:12:40,576 INFO L87 Difference]: Start difference. First operand has 1638 states, 932 states have (on average 1.2918454935622317) internal successors, (1204), 1014 states have internal predecessors, (1204), 519 states have call successors, (519), 169 states have call predecessors, (519), 168 states have return successors, (513), 498 states have call predecessors, (513), 513 states have call successors, (513) Second operand has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 2 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2023-04-03 06:12:41,473 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-03 06:12:41,474 INFO L93 Difference]: Finished difference Result 3332 states and 4586 transitions. [2023-04-03 06:12:41,475 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-04-03 06:12:41,476 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 2 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) Word has length 59 [2023-04-03 06:12:41,477 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-03 06:12:41,521 INFO L225 Difference]: With dead ends: 3332 [2023-04-03 06:12:41,522 INFO L226 Difference]: Without dead ends: 2020 [2023-04-03 06:12:41,560 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-04-03 06:12:41,563 INFO L413 NwaCegarLoop]: 1582 mSDtfsCounter, 1107 mSDsluCounter, 1543 mSDsCounter, 0 mSdLazyCounter, 339 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1107 SdHoareTripleChecker+Valid, 3125 SdHoareTripleChecker+Invalid, 343 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 339 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-04-03 06:12:41,564 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1107 Valid, 3125 Invalid, 343 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 339 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-04-03 06:12:41,602 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2020 states. [2023-04-03 06:12:41,797 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2020 to 2010. [2023-04-03 06:12:41,803 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2010 states, 1173 states have (on average 1.300085251491901) internal successors, (1525), 1291 states have internal predecessors, (1525), 620 states have call successors, (620), 219 states have call predecessors, (620), 216 states have return successors, (618), 598 states have call predecessors, (618), 618 states have call successors, (618) [2023-04-03 06:12:41,821 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2010 states to 2010 states and 2763 transitions. [2023-04-03 06:12:41,825 INFO L78 Accepts]: Start accepts. Automaton has 2010 states and 2763 transitions. Word has length 59 [2023-04-03 06:12:41,826 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-03 06:12:41,826 INFO L495 AbstractCegarLoop]: Abstraction has 2010 states and 2763 transitions. [2023-04-03 06:12:41,826 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 2 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2023-04-03 06:12:41,826 INFO L276 IsEmpty]: Start isEmpty. Operand 2010 states and 2763 transitions. [2023-04-03 06:12:41,837 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2023-04-03 06:12:41,838 INFO L187 NwaCegarLoop]: Found error trace [2023-04-03 06:12:41,838 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 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] [2023-04-03 06:12:41,838 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-04-03 06:12:41,839 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-03 06:12:41,839 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-03 06:12:41,839 INFO L85 PathProgramCache]: Analyzing trace with hash -1713226345, now seen corresponding path program 1 times [2023-04-03 06:12:41,839 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-03 06:12:41,839 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1174611370] [2023-04-03 06:12:41,840 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-03 06:12:41,840 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-03 06:12:41,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-03 06:12:42,230 INFO L134 CoverageAnalysis]: Checked inductivity of 62 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2023-04-03 06:12:42,231 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-03 06:12:42,231 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1174611370] [2023-04-03 06:12:42,232 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1174611370] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-03 06:12:42,232 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-03 06:12:42,232 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-04-03 06:12:42,232 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1045106812] [2023-04-03 06:12:42,232 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-03 06:12:42,234 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-04-03 06:12:42,234 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-03 06:12:42,235 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-04-03 06:12:42,235 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-04-03 06:12:42,235 INFO L87 Difference]: Start difference. First operand 2010 states and 2763 transitions. Second operand has 3 states, 3 states have (on average 14.333333333333334) internal successors, (43), 3 states have internal predecessors, (43), 2 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2023-04-03 06:12:42,727 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-03 06:12:42,728 INFO L93 Difference]: Finished difference Result 3998 states and 5501 transitions. [2023-04-03 06:12:42,728 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-04-03 06:12:42,728 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 14.333333333333334) internal successors, (43), 3 states have internal predecessors, (43), 2 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) Word has length 101 [2023-04-03 06:12:42,729 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-03 06:12:42,745 INFO L225 Difference]: With dead ends: 3998 [2023-04-03 06:12:42,745 INFO L226 Difference]: Without dead ends: 2010 [2023-04-03 06:12:42,756 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-04-03 06:12:42,757 INFO L413 NwaCegarLoop]: 1545 mSDtfsCounter, 0 mSDsluCounter, 1541 mSDsCounter, 0 mSdLazyCounter, 325 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 3086 SdHoareTripleChecker+Invalid, 325 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 325 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-04-03 06:12:42,758 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 3086 Invalid, 325 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 325 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-04-03 06:12:42,762 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2010 states. [2023-04-03 06:12:42,854 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2010 to 2010. [2023-04-03 06:12:42,859 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2010 states, 1173 states have (on average 1.29923273657289) internal successors, (1524), 1290 states have internal predecessors, (1524), 620 states have call successors, (620), 219 states have call predecessors, (620), 216 states have return successors, (618), 598 states have call predecessors, (618), 618 states have call successors, (618) [2023-04-03 06:12:42,940 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2010 states to 2010 states and 2762 transitions. [2023-04-03 06:12:42,941 INFO L78 Accepts]: Start accepts. Automaton has 2010 states and 2762 transitions. Word has length 101 [2023-04-03 06:12:42,942 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-03 06:12:42,942 INFO L495 AbstractCegarLoop]: Abstraction has 2010 states and 2762 transitions. [2023-04-03 06:12:42,942 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.333333333333334) internal successors, (43), 3 states have internal predecessors, (43), 2 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2023-04-03 06:12:42,942 INFO L276 IsEmpty]: Start isEmpty. Operand 2010 states and 2762 transitions. [2023-04-03 06:12:42,945 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2023-04-03 06:12:42,945 INFO L187 NwaCegarLoop]: Found error trace [2023-04-03 06:12:42,945 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-03 06:12:42,945 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-04-03 06:12:42,945 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-03 06:12:42,946 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-03 06:12:42,946 INFO L85 PathProgramCache]: Analyzing trace with hash 234284385, now seen corresponding path program 1 times [2023-04-03 06:12:42,947 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-03 06:12:42,947 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [398482450] [2023-04-03 06:12:42,947 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-03 06:12:42,947 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-03 06:12:43,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-03 06:12:43,961 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2023-04-03 06:12:43,962 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-03 06:12:43,962 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [398482450] [2023-04-03 06:12:43,962 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [398482450] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-03 06:12:43,962 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-03 06:12:43,962 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-04-03 06:12:43,962 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1277689952] [2023-04-03 06:12:43,963 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-03 06:12:43,964 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-04-03 06:12:43,964 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-03 06:12:43,966 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-04-03 06:12:43,966 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-04-03 06:12:43,966 INFO L87 Difference]: Start difference. First operand 2010 states and 2762 transitions. Second operand has 5 states, 5 states have (on average 10.6) internal successors, (53), 4 states have internal predecessors, (53), 3 states have call successors, (24), 4 states have call predecessors, (24), 2 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) [2023-04-03 06:12:45,058 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-03 06:12:45,058 INFO L93 Difference]: Finished difference Result 6005 states and 8276 transitions. [2023-04-03 06:12:45,059 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-04-03 06:12:45,059 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.6) internal successors, (53), 4 states have internal predecessors, (53), 3 states have call successors, (24), 4 states have call predecessors, (24), 2 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) Word has length 111 [2023-04-03 06:12:45,060 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-03 06:12:45,094 INFO L225 Difference]: With dead ends: 6005 [2023-04-03 06:12:45,094 INFO L226 Difference]: Without dead ends: 4018 [2023-04-03 06:12:45,108 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2023-04-03 06:12:45,115 INFO L413 NwaCegarLoop]: 1542 mSDtfsCounter, 1694 mSDsluCounter, 4602 mSDsCounter, 0 mSdLazyCounter, 666 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1698 SdHoareTripleChecker+Valid, 6144 SdHoareTripleChecker+Invalid, 669 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 666 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-04-03 06:12:45,119 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1698 Valid, 6144 Invalid, 669 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 666 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-04-03 06:12:45,126 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4018 states. [2023-04-03 06:12:45,375 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4018 to 3993. [2023-04-03 06:12:45,385 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3993 states, 2333 states have (on average 1.3009001285897985) internal successors, (3035), 2574 states have internal predecessors, (3035), 1230 states have call successors, (1230), 433 states have call predecessors, (1230), 429 states have return successors, (1234), 1180 states have call predecessors, (1234), 1228 states have call successors, (1234) [2023-04-03 06:12:45,423 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3993 states to 3993 states and 5499 transitions. [2023-04-03 06:12:45,424 INFO L78 Accepts]: Start accepts. Automaton has 3993 states and 5499 transitions. Word has length 111 [2023-04-03 06:12:45,426 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-03 06:12:45,426 INFO L495 AbstractCegarLoop]: Abstraction has 3993 states and 5499 transitions. [2023-04-03 06:12:45,427 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.6) internal successors, (53), 4 states have internal predecessors, (53), 3 states have call successors, (24), 4 states have call predecessors, (24), 2 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) [2023-04-03 06:12:45,427 INFO L276 IsEmpty]: Start isEmpty. Operand 3993 states and 5499 transitions. [2023-04-03 06:12:45,431 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2023-04-03 06:12:45,431 INFO L187 NwaCegarLoop]: Found error trace [2023-04-03 06:12:45,431 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-03 06:12:45,432 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-04-03 06:12:45,433 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-03 06:12:45,434 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-03 06:12:45,435 INFO L85 PathProgramCache]: Analyzing trace with hash -1278361066, now seen corresponding path program 1 times [2023-04-03 06:12:45,435 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-03 06:12:45,435 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1857534490] [2023-04-03 06:12:45,435 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-03 06:12:45,436 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-03 06:12:45,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-03 06:12:45,989 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2023-04-03 06:12:45,989 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-03 06:12:45,989 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1857534490] [2023-04-03 06:12:45,989 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1857534490] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-03 06:12:45,989 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-03 06:12:45,989 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-04-03 06:12:45,990 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [344233195] [2023-04-03 06:12:45,990 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-03 06:12:45,990 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-04-03 06:12:45,990 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-03 06:12:45,991 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-04-03 06:12:45,991 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-04-03 06:12:45,991 INFO L87 Difference]: Start difference. First operand 3993 states and 5499 transitions. Second operand has 5 states, 5 states have (on average 10.8) internal successors, (54), 4 states have internal predecessors, (54), 3 states have call successors, (24), 4 states have call predecessors, (24), 2 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) [2023-04-03 06:12:47,063 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-03 06:12:47,063 INFO L93 Difference]: Finished difference Result 9312 states and 12879 transitions. [2023-04-03 06:12:47,063 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-04-03 06:12:47,064 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.8) internal successors, (54), 4 states have internal predecessors, (54), 3 states have call successors, (24), 4 states have call predecessors, (24), 2 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) Word has length 112 [2023-04-03 06:12:47,065 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-03 06:12:47,104 INFO L225 Difference]: With dead ends: 9312 [2023-04-03 06:12:47,105 INFO L226 Difference]: Without dead ends: 6017 [2023-04-03 06:12:47,123 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2023-04-03 06:12:47,128 INFO L413 NwaCegarLoop]: 1672 mSDtfsCounter, 1690 mSDsluCounter, 4858 mSDsCounter, 0 mSdLazyCounter, 681 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1694 SdHoareTripleChecker+Valid, 6530 SdHoareTripleChecker+Invalid, 684 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 681 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-04-03 06:12:47,131 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1694 Valid, 6530 Invalid, 684 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 681 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-04-03 06:12:47,141 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6017 states. [2023-04-03 06:12:47,403 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6017 to 5982. [2023-04-03 06:12:47,430 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5982 states, 3501 states have (on average 1.300771208226221) internal successors, (4554), 3856 states have internal predecessors, (4554), 1838 states have call successors, (1838), 647 states have call predecessors, (1838), 642 states have return successors, (1846), 1770 states have call predecessors, (1846), 1836 states have call successors, (1846) [2023-04-03 06:12:47,460 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5982 states to 5982 states and 8238 transitions. [2023-04-03 06:12:47,462 INFO L78 Accepts]: Start accepts. Automaton has 5982 states and 8238 transitions. Word has length 112 [2023-04-03 06:12:47,462 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-03 06:12:47,462 INFO L495 AbstractCegarLoop]: Abstraction has 5982 states and 8238 transitions. [2023-04-03 06:12:47,463 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.8) internal successors, (54), 4 states have internal predecessors, (54), 3 states have call successors, (24), 4 states have call predecessors, (24), 2 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) [2023-04-03 06:12:47,463 INFO L276 IsEmpty]: Start isEmpty. Operand 5982 states and 8238 transitions. [2023-04-03 06:12:47,472 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2023-04-03 06:12:47,472 INFO L187 NwaCegarLoop]: Found error trace [2023-04-03 06:12:47,473 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-03 06:12:47,473 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-04-03 06:12:47,473 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-03 06:12:47,473 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-03 06:12:47,473 INFO L85 PathProgramCache]: Analyzing trace with hash 139529822, now seen corresponding path program 1 times [2023-04-03 06:12:47,474 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-03 06:12:47,474 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1534503964] [2023-04-03 06:12:47,474 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-03 06:12:47,474 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-03 06:12:47,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-03 06:12:47,985 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2023-04-03 06:12:47,985 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-03 06:12:47,986 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1534503964] [2023-04-03 06:12:47,986 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1534503964] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-03 06:12:47,986 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-03 06:12:47,986 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-04-03 06:12:47,986 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [220324764] [2023-04-03 06:12:47,986 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-03 06:12:47,987 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-04-03 06:12:47,987 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-03 06:12:47,988 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-04-03 06:12:47,988 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-04-03 06:12:47,988 INFO L87 Difference]: Start difference. First operand 5982 states and 8238 transitions. Second operand has 5 states, 5 states have (on average 11.0) internal successors, (55), 4 states have internal predecessors, (55), 3 states have call successors, (24), 4 states have call predecessors, (24), 2 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) [2023-04-03 06:12:49,016 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-03 06:12:49,016 INFO L93 Difference]: Finished difference Result 11311 states and 15622 transitions. [2023-04-03 06:12:49,016 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-04-03 06:12:49,017 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.0) internal successors, (55), 4 states have internal predecessors, (55), 3 states have call successors, (24), 4 states have call predecessors, (24), 2 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) Word has length 113 [2023-04-03 06:12:49,017 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-03 06:12:49,058 INFO L225 Difference]: With dead ends: 11311 [2023-04-03 06:12:49,058 INFO L226 Difference]: Without dead ends: 6025 [2023-04-03 06:12:49,085 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2023-04-03 06:12:49,086 INFO L413 NwaCegarLoop]: 1680 mSDtfsCounter, 1688 mSDsluCounter, 4874 mSDsCounter, 0 mSdLazyCounter, 678 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1692 SdHoareTripleChecker+Valid, 6554 SdHoareTripleChecker+Invalid, 681 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 678 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-04-03 06:12:49,086 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1692 Valid, 6554 Invalid, 681 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 678 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-04-03 06:12:49,095 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6025 states. [2023-04-03 06:12:49,360 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6025 to 5990. [2023-04-03 06:12:49,372 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5990 states, 3509 states have (on average 1.3000854944428613) internal successors, (4562), 3862 states have internal predecessors, (4562), 1836 states have call successors, (1836), 649 states have call predecessors, (1836), 644 states have return successors, (1844), 1770 states have call predecessors, (1844), 1834 states have call successors, (1844) [2023-04-03 06:12:49,400 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5990 states to 5990 states and 8242 transitions. [2023-04-03 06:12:49,402 INFO L78 Accepts]: Start accepts. Automaton has 5990 states and 8242 transitions. Word has length 113 [2023-04-03 06:12:49,404 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-03 06:12:49,405 INFO L495 AbstractCegarLoop]: Abstraction has 5990 states and 8242 transitions. [2023-04-03 06:12:49,405 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.0) internal successors, (55), 4 states have internal predecessors, (55), 3 states have call successors, (24), 4 states have call predecessors, (24), 2 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) [2023-04-03 06:12:49,405 INFO L276 IsEmpty]: Start isEmpty. Operand 5990 states and 8242 transitions. [2023-04-03 06:12:49,408 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2023-04-03 06:12:49,408 INFO L187 NwaCegarLoop]: Found error trace [2023-04-03 06:12:49,409 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 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] [2023-04-03 06:12:49,409 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-04-03 06:12:49,409 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-03 06:12:49,409 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-03 06:12:49,409 INFO L85 PathProgramCache]: Analyzing trace with hash 444166985, now seen corresponding path program 1 times [2023-04-03 06:12:49,410 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-03 06:12:49,410 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1807375230] [2023-04-03 06:12:49,410 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-03 06:12:49,410 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-03 06:12:49,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-03 06:12:50,166 INFO L134 CoverageAnalysis]: Checked inductivity of 102 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 102 trivial. 0 not checked. [2023-04-03 06:12:50,166 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-03 06:12:50,166 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1807375230] [2023-04-03 06:12:50,166 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1807375230] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-03 06:12:50,166 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-03 06:12:50,166 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-04-03 06:12:50,166 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2032323574] [2023-04-03 06:12:50,166 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-03 06:12:50,167 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-04-03 06:12:50,167 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-03 06:12:50,168 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-04-03 06:12:50,168 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-04-03 06:12:50,169 INFO L87 Difference]: Start difference. First operand 5990 states and 8242 transitions. Second operand has 4 states, 4 states have (on average 11.0) internal successors, (44), 4 states have internal predecessors, (44), 3 states have call successors, (20), 3 states have call predecessors, (20), 2 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2023-04-03 06:12:50,782 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-03 06:12:50,782 INFO L93 Difference]: Finished difference Result 6079 states and 8317 transitions. [2023-04-03 06:12:50,782 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-04-03 06:12:50,783 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 11.0) internal successors, (44), 4 states have internal predecessors, (44), 3 states have call successors, (20), 3 states have call predecessors, (20), 2 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) Word has length 116 [2023-04-03 06:12:50,783 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-03 06:12:50,829 INFO L225 Difference]: With dead ends: 6079 [2023-04-03 06:12:50,829 INFO L226 Difference]: Without dead ends: 6076 [2023-04-03 06:12:50,834 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-04-03 06:12:50,835 INFO L413 NwaCegarLoop]: 1558 mSDtfsCounter, 616 mSDsluCounter, 2530 mSDsCounter, 0 mSdLazyCounter, 437 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 616 SdHoareTripleChecker+Valid, 4088 SdHoareTripleChecker+Invalid, 438 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 437 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-04-03 06:12:50,836 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [616 Valid, 4088 Invalid, 438 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 437 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-04-03 06:12:50,844 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6076 states. [2023-04-03 06:12:51,127 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6076 to 6076. [2023-04-03 06:12:51,137 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6076 states, 3558 states have (on average 1.296795952782462) internal successors, (4614), 3911 states have internal predecessors, (4614), 1845 states have call successors, (1845), 677 states have call predecessors, (1845), 672 states have return successors, (1853), 1779 states have call predecessors, (1853), 1843 states have call successors, (1853) [2023-04-03 06:12:51,161 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6076 states to 6076 states and 8312 transitions. [2023-04-03 06:12:51,162 INFO L78 Accepts]: Start accepts. Automaton has 6076 states and 8312 transitions. Word has length 116 [2023-04-03 06:12:51,162 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-03 06:12:51,163 INFO L495 AbstractCegarLoop]: Abstraction has 6076 states and 8312 transitions. [2023-04-03 06:12:51,163 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.0) internal successors, (44), 4 states have internal predecessors, (44), 3 states have call successors, (20), 3 states have call predecessors, (20), 2 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2023-04-03 06:12:51,163 INFO L276 IsEmpty]: Start isEmpty. Operand 6076 states and 8312 transitions. [2023-04-03 06:12:51,166 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2023-04-03 06:12:51,166 INFO L187 NwaCegarLoop]: Found error trace [2023-04-03 06:12:51,166 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-03 06:12:51,166 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-04-03 06:12:51,166 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-03 06:12:51,167 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-03 06:12:51,167 INFO L85 PathProgramCache]: Analyzing trace with hash -2085233293, now seen corresponding path program 1 times [2023-04-03 06:12:51,167 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-03 06:12:51,167 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [794404860] [2023-04-03 06:12:51,167 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-03 06:12:51,167 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-03 06:12:51,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-03 06:12:51,613 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2023-04-03 06:12:51,614 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-03 06:12:51,614 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [794404860] [2023-04-03 06:12:51,614 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [794404860] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-03 06:12:51,614 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-03 06:12:51,614 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-04-03 06:12:51,614 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1240995488] [2023-04-03 06:12:51,614 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-03 06:12:51,615 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-04-03 06:12:51,615 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-03 06:12:51,615 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-04-03 06:12:51,615 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-04-03 06:12:51,616 INFO L87 Difference]: Start difference. First operand 6076 states and 8312 transitions. Second operand has 5 states, 5 states have (on average 11.2) internal successors, (56), 4 states have internal predecessors, (56), 3 states have call successors, (24), 4 states have call predecessors, (24), 2 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) [2023-04-03 06:12:52,664 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-03 06:12:52,664 INFO L93 Difference]: Finished difference Result 10193 states and 13923 transitions. [2023-04-03 06:12:52,665 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-04-03 06:12:52,665 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.2) internal successors, (56), 4 states have internal predecessors, (56), 3 states have call successors, (24), 4 states have call predecessors, (24), 2 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) Word has length 114 [2023-04-03 06:12:52,667 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-03 06:12:52,695 INFO L225 Difference]: With dead ends: 10193 [2023-04-03 06:12:52,695 INFO L226 Difference]: Without dead ends: 4841 [2023-04-03 06:12:52,721 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2023-04-03 06:12:52,722 INFO L413 NwaCegarLoop]: 1672 mSDtfsCounter, 1686 mSDsluCounter, 4858 mSDsCounter, 0 mSdLazyCounter, 681 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1690 SdHoareTripleChecker+Valid, 6530 SdHoareTripleChecker+Invalid, 684 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 681 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-04-03 06:12:52,722 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1690 Valid, 6530 Invalid, 684 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 681 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-04-03 06:12:52,728 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4841 states. [2023-04-03 06:12:52,957 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4841 to 4812. [2023-04-03 06:12:52,965 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4812 states, 2806 states have (on average 1.2854597291518175) internal successors, (3607), 3056 states have internal predecessors, (3607), 1441 states have call successors, (1441), 569 states have call predecessors, (1441), 564 states have return successors, (1449), 1391 states have call predecessors, (1449), 1439 states have call successors, (1449) [2023-04-03 06:12:52,986 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4812 states to 4812 states and 6497 transitions. [2023-04-03 06:12:52,988 INFO L78 Accepts]: Start accepts. Automaton has 4812 states and 6497 transitions. Word has length 114 [2023-04-03 06:12:52,990 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-03 06:12:52,990 INFO L495 AbstractCegarLoop]: Abstraction has 4812 states and 6497 transitions. [2023-04-03 06:12:52,990 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.2) internal successors, (56), 4 states have internal predecessors, (56), 3 states have call successors, (24), 4 states have call predecessors, (24), 2 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) [2023-04-03 06:12:52,990 INFO L276 IsEmpty]: Start isEmpty. Operand 4812 states and 6497 transitions. [2023-04-03 06:12:52,993 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2023-04-03 06:12:52,993 INFO L187 NwaCegarLoop]: Found error trace [2023-04-03 06:12:52,993 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-03 06:12:52,994 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-04-03 06:12:52,994 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-03 06:12:52,994 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-03 06:12:52,994 INFO L85 PathProgramCache]: Analyzing trace with hash 1896132987, now seen corresponding path program 1 times [2023-04-03 06:12:52,994 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-03 06:12:52,995 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1320091904] [2023-04-03 06:12:52,995 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-03 06:12:52,995 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-03 06:12:53,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-03 06:12:53,825 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 1 proven. 4 refuted. 0 times theorem prover too weak. 37 trivial. 0 not checked. [2023-04-03 06:12:53,825 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-03 06:12:53,825 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1320091904] [2023-04-03 06:12:53,826 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1320091904] provided 0 perfect and 1 imperfect interpolant sequences [2023-04-03 06:12:53,826 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1925368827] [2023-04-03 06:12:53,826 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-03 06:12:53,826 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-03 06:12:53,826 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-03 06:12:53,833 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-04-03 06:12:53,837 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-04-03 06:12:54,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-03 06:12:54,722 INFO L262 TraceCheckSpWp]: Trace formula consists of 3586 conjuncts, 9 conjunts are in the unsatisfiable core [2023-04-03 06:12:54,741 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-04-03 06:12:54,866 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2023-04-03 06:12:54,867 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-04-03 06:12:54,867 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1925368827] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-03 06:12:54,867 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-04-03 06:12:54,867 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [9] total 14 [2023-04-03 06:12:54,867 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [39762776] [2023-04-03 06:12:54,867 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-03 06:12:54,868 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-04-03 06:12:54,868 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-03 06:12:54,868 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-04-03 06:12:54,869 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2023-04-03 06:12:54,869 INFO L87 Difference]: Start difference. First operand 4812 states and 6497 transitions. Second operand has 7 states, 7 states have (on average 9.285714285714286) internal successors, (65), 5 states have internal predecessors, (65), 3 states have call successors, (26), 4 states have call predecessors, (26), 4 states have return successors, (17), 4 states have call predecessors, (17), 2 states have call successors, (17) [2023-04-03 06:12:56,599 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-03 06:12:56,599 INFO L93 Difference]: Finished difference Result 11705 states and 15858 transitions. [2023-04-03 06:12:56,601 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-04-03 06:12:56,601 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.285714285714286) internal successors, (65), 5 states have internal predecessors, (65), 3 states have call successors, (26), 4 states have call predecessors, (26), 4 states have return successors, (17), 4 states have call predecessors, (17), 2 states have call successors, (17) Word has length 127 [2023-04-03 06:12:56,601 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-03 06:12:56,647 INFO L225 Difference]: With dead ends: 11705 [2023-04-03 06:12:56,647 INFO L226 Difference]: Without dead ends: 7651 [2023-04-03 06:12:56,672 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 147 GetRequests, 128 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=69, Invalid=351, Unknown=0, NotChecked=0, Total=420 [2023-04-03 06:12:56,673 INFO L413 NwaCegarLoop]: 2486 mSDtfsCounter, 1718 mSDsluCounter, 11471 mSDsCounter, 0 mSdLazyCounter, 1507 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1722 SdHoareTripleChecker+Valid, 13957 SdHoareTripleChecker+Invalid, 1509 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 1507 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2023-04-03 06:12:56,673 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1722 Valid, 13957 Invalid, 1509 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 1507 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2023-04-03 06:12:56,684 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7651 states. [2023-04-03 06:12:57,058 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7651 to 7588. [2023-04-03 06:12:57,071 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7588 states, 4426 states have (on average 1.2842295526434704) internal successors, (5684), 4817 states have internal predecessors, (5684), 2259 states have call successors, (2259), 905 states have call predecessors, (2259), 902 states have return successors, (2295), 2177 states have call predecessors, (2295), 2257 states have call successors, (2295) [2023-04-03 06:12:57,106 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7588 states to 7588 states and 10238 transitions. [2023-04-03 06:12:57,109 INFO L78 Accepts]: Start accepts. Automaton has 7588 states and 10238 transitions. Word has length 127 [2023-04-03 06:12:57,109 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-03 06:12:57,109 INFO L495 AbstractCegarLoop]: Abstraction has 7588 states and 10238 transitions. [2023-04-03 06:12:57,110 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 9.285714285714286) internal successors, (65), 5 states have internal predecessors, (65), 3 states have call successors, (26), 4 states have call predecessors, (26), 4 states have return successors, (17), 4 states have call predecessors, (17), 2 states have call successors, (17) [2023-04-03 06:12:57,110 INFO L276 IsEmpty]: Start isEmpty. Operand 7588 states and 10238 transitions. [2023-04-03 06:12:57,113 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2023-04-03 06:12:57,113 INFO L187 NwaCegarLoop]: Found error trace [2023-04-03 06:12:57,113 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-03 06:12:57,136 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-04-03 06:12:57,337 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-03 06:12:57,337 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-03 06:12:57,338 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-03 06:12:57,338 INFO L85 PathProgramCache]: Analyzing trace with hash -1195822603, now seen corresponding path program 1 times [2023-04-03 06:12:57,338 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-03 06:12:57,338 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [263394232] [2023-04-03 06:12:57,338 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-03 06:12:57,338 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-03 06:12:57,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-03 06:12:58,131 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 3 proven. 6 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2023-04-03 06:12:58,132 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-03 06:12:58,132 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [263394232] [2023-04-03 06:12:58,132 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [263394232] provided 0 perfect and 1 imperfect interpolant sequences [2023-04-03 06:12:58,132 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1849794847] [2023-04-03 06:12:58,132 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-03 06:12:58,132 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-03 06:12:58,132 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-03 06:12:58,134 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-04-03 06:12:58,137 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-04-03 06:12:59,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-03 06:12:59,073 INFO L262 TraceCheckSpWp]: Trace formula consists of 3588 conjuncts, 9 conjunts are in the unsatisfiable core [2023-04-03 06:12:59,080 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-04-03 06:12:59,175 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2023-04-03 06:12:59,175 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-04-03 06:12:59,175 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1849794847] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-03 06:12:59,175 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-04-03 06:12:59,175 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [10] total 15 [2023-04-03 06:12:59,175 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [914509984] [2023-04-03 06:12:59,175 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-03 06:12:59,176 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-04-03 06:12:59,176 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-03 06:12:59,177 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-04-03 06:12:59,177 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=180, Unknown=0, NotChecked=0, Total=210 [2023-04-03 06:12:59,177 INFO L87 Difference]: Start difference. First operand 7588 states and 10238 transitions. Second operand has 7 states, 7 states have (on average 9.428571428571429) internal successors, (66), 5 states have internal predecessors, (66), 3 states have call successors, (26), 4 states have call predecessors, (26), 4 states have return successors, (17), 4 states have call predecessors, (17), 2 states have call successors, (17) [2023-04-03 06:13:01,044 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-03 06:13:01,045 INFO L93 Difference]: Finished difference Result 17279 states and 23366 transitions. [2023-04-03 06:13:01,045 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-04-03 06:13:01,046 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.428571428571429) internal successors, (66), 5 states have internal predecessors, (66), 3 states have call successors, (26), 4 states have call predecessors, (26), 4 states have return successors, (17), 4 states have call predecessors, (17), 2 states have call successors, (17) Word has length 128 [2023-04-03 06:13:01,046 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-03 06:13:01,117 INFO L225 Difference]: With dead ends: 17279 [2023-04-03 06:13:01,117 INFO L226 Difference]: Without dead ends: 10449 [2023-04-03 06:13:01,160 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 147 GetRequests, 127 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=71, Invalid=391, Unknown=0, NotChecked=0, Total=462 [2023-04-03 06:13:01,163 INFO L413 NwaCegarLoop]: 2492 mSDtfsCounter, 1718 mSDsluCounter, 11483 mSDsCounter, 0 mSdLazyCounter, 1509 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1722 SdHoareTripleChecker+Valid, 13975 SdHoareTripleChecker+Invalid, 1511 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 1509 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2023-04-03 06:13:01,163 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1722 Valid, 13975 Invalid, 1511 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2 Valid, 1509 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2023-04-03 06:13:01,178 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10449 states. [2023-04-03 06:13:01,718 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10449 to 9712. [2023-04-03 06:13:01,734 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9712 states, 5660 states have (on average 1.2803886925795054) internal successors, (7247), 6143 states have internal predecessors, (7247), 2870 states have call successors, (2870), 1179 states have call predecessors, (2870), 1181 states have return successors, (2945), 2764 states have call predecessors, (2945), 2868 states have call successors, (2945) [2023-04-03 06:13:01,780 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9712 states to 9712 states and 13062 transitions. [2023-04-03 06:13:01,782 INFO L78 Accepts]: Start accepts. Automaton has 9712 states and 13062 transitions. Word has length 128 [2023-04-03 06:13:01,783 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-03 06:13:01,783 INFO L495 AbstractCegarLoop]: Abstraction has 9712 states and 13062 transitions. [2023-04-03 06:13:01,783 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 9.428571428571429) internal successors, (66), 5 states have internal predecessors, (66), 3 states have call successors, (26), 4 states have call predecessors, (26), 4 states have return successors, (17), 4 states have call predecessors, (17), 2 states have call successors, (17) [2023-04-03 06:13:01,783 INFO L276 IsEmpty]: Start isEmpty. Operand 9712 states and 13062 transitions. [2023-04-03 06:13:01,787 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2023-04-03 06:13:01,787 INFO L187 NwaCegarLoop]: Found error trace [2023-04-03 06:13:01,787 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-03 06:13:01,806 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-04-03 06:13:02,001 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable8 [2023-04-03 06:13:02,001 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-03 06:13:02,002 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-03 06:13:02,002 INFO L85 PathProgramCache]: Analyzing trace with hash -806970366, now seen corresponding path program 1 times [2023-04-03 06:13:02,002 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-03 06:13:02,002 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1974324690] [2023-04-03 06:13:02,002 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-03 06:13:02,002 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-03 06:13:02,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-03 06:13:02,695 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 3 proven. 6 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2023-04-03 06:13:02,695 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-03 06:13:02,695 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1974324690] [2023-04-03 06:13:02,695 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1974324690] provided 0 perfect and 1 imperfect interpolant sequences [2023-04-03 06:13:02,696 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [841505427] [2023-04-03 06:13:02,696 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-03 06:13:02,696 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-03 06:13:02,696 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-03 06:13:02,697 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-04-03 06:13:02,701 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-04-03 06:13:03,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-03 06:13:03,540 INFO L262 TraceCheckSpWp]: Trace formula consists of 3590 conjuncts, 9 conjunts are in the unsatisfiable core [2023-04-03 06:13:03,546 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-04-03 06:13:03,626 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2023-04-03 06:13:03,626 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-04-03 06:13:03,627 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [841505427] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-03 06:13:03,627 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-04-03 06:13:03,627 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [10] total 15 [2023-04-03 06:13:03,627 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1696132173] [2023-04-03 06:13:03,627 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-03 06:13:03,627 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-04-03 06:13:03,628 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-03 06:13:03,628 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-04-03 06:13:03,628 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=180, Unknown=0, NotChecked=0, Total=210 [2023-04-03 06:13:03,628 INFO L87 Difference]: Start difference. First operand 9712 states and 13062 transitions. Second operand has 7 states, 7 states have (on average 9.571428571428571) internal successors, (67), 5 states have internal predecessors, (67), 3 states have call successors, (26), 4 states have call predecessors, (26), 4 states have return successors, (17), 4 states have call predecessors, (17), 2 states have call successors, (17) [2023-04-03 06:13:05,487 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-03 06:13:05,487 INFO L93 Difference]: Finished difference Result 21523 states and 29012 transitions. [2023-04-03 06:13:05,488 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-04-03 06:13:05,488 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.571428571428571) internal successors, (67), 5 states have internal predecessors, (67), 3 states have call successors, (26), 4 states have call predecessors, (26), 4 states have return successors, (17), 4 states have call predecessors, (17), 2 states have call successors, (17) Word has length 129 [2023-04-03 06:13:05,488 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-03 06:13:05,558 INFO L225 Difference]: With dead ends: 21523 [2023-04-03 06:13:05,559 INFO L226 Difference]: Without dead ends: 12569 [2023-04-03 06:13:05,598 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 148 GetRequests, 128 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=71, Invalid=391, Unknown=0, NotChecked=0, Total=462 [2023-04-03 06:13:05,598 INFO L413 NwaCegarLoop]: 2492 mSDtfsCounter, 1718 mSDsluCounter, 11483 mSDsCounter, 0 mSdLazyCounter, 1509 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1722 SdHoareTripleChecker+Valid, 13975 SdHoareTripleChecker+Invalid, 1511 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 1509 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2023-04-03 06:13:05,599 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1722 Valid, 13975 Invalid, 1511 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 1509 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2023-04-03 06:13:05,612 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12569 states. [2023-04-03 06:13:06,070 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12569 to 9714. [2023-04-03 06:13:06,087 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9714 states, 5662 states have (on average 1.2802896503002472) internal successors, (7249), 6143 states have internal predecessors, (7249), 2870 states have call successors, (2870), 1179 states have call predecessors, (2870), 1181 states have return successors, (2945), 2766 states have call predecessors, (2945), 2868 states have call successors, (2945) [2023-04-03 06:13:06,130 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9714 states to 9714 states and 13064 transitions. [2023-04-03 06:13:06,134 INFO L78 Accepts]: Start accepts. Automaton has 9714 states and 13064 transitions. Word has length 129 [2023-04-03 06:13:06,135 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-03 06:13:06,135 INFO L495 AbstractCegarLoop]: Abstraction has 9714 states and 13064 transitions. [2023-04-03 06:13:06,135 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 9.571428571428571) internal successors, (67), 5 states have internal predecessors, (67), 3 states have call successors, (26), 4 states have call predecessors, (26), 4 states have return successors, (17), 4 states have call predecessors, (17), 2 states have call successors, (17) [2023-04-03 06:13:06,135 INFO L276 IsEmpty]: Start isEmpty. Operand 9714 states and 13064 transitions. [2023-04-03 06:13:06,139 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2023-04-03 06:13:06,141 INFO L187 NwaCegarLoop]: Found error trace [2023-04-03 06:13:06,142 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-03 06:13:06,159 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-04-03 06:13:06,357 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-03 06:13:06,357 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-03 06:13:06,358 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-03 06:13:06,358 INFO L85 PathProgramCache]: Analyzing trace with hash 112742108, now seen corresponding path program 1 times [2023-04-03 06:13:06,358 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-03 06:13:06,358 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1613786910] [2023-04-03 06:13:06,358 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-03 06:13:06,358 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-03 06:13:06,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-03 06:13:07,082 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 3 proven. 6 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2023-04-03 06:13:07,082 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-03 06:13:07,082 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1613786910] [2023-04-03 06:13:07,082 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1613786910] provided 0 perfect and 1 imperfect interpolant sequences [2023-04-03 06:13:07,082 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [969009098] [2023-04-03 06:13:07,083 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-03 06:13:07,083 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-03 06:13:07,083 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-03 06:13:07,084 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-04-03 06:13:07,093 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-04-03 06:13:07,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-03 06:13:07,895 INFO L262 TraceCheckSpWp]: Trace formula consists of 3592 conjuncts, 9 conjunts are in the unsatisfiable core [2023-04-03 06:13:07,901 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-04-03 06:13:08,012 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2023-04-03 06:13:08,012 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-04-03 06:13:08,013 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [969009098] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-03 06:13:08,013 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-04-03 06:13:08,013 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [10] total 15 [2023-04-03 06:13:08,013 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [31472682] [2023-04-03 06:13:08,013 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-03 06:13:08,013 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-04-03 06:13:08,014 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-03 06:13:08,014 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-04-03 06:13:08,014 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=180, Unknown=0, NotChecked=0, Total=210 [2023-04-03 06:13:08,014 INFO L87 Difference]: Start difference. First operand 9714 states and 13064 transitions. Second operand has 7 states, 7 states have (on average 9.714285714285714) internal successors, (68), 5 states have internal predecessors, (68), 3 states have call successors, (26), 4 states have call predecessors, (26), 4 states have return successors, (17), 4 states have call predecessors, (17), 2 states have call successors, (17) [2023-04-03 06:13:09,685 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-03 06:13:09,685 INFO L93 Difference]: Finished difference Result 21529 states and 29014 transitions. [2023-04-03 06:13:09,686 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-04-03 06:13:09,686 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.714285714285714) internal successors, (68), 5 states have internal predecessors, (68), 3 states have call successors, (26), 4 states have call predecessors, (26), 4 states have return successors, (17), 4 states have call predecessors, (17), 2 states have call successors, (17) Word has length 130 [2023-04-03 06:13:09,686 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-03 06:13:09,773 INFO L225 Difference]: With dead ends: 21529 [2023-04-03 06:13:09,773 INFO L226 Difference]: Without dead ends: 12573 [2023-04-03 06:13:09,814 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 149 GetRequests, 129 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=71, Invalid=391, Unknown=0, NotChecked=0, Total=462 [2023-04-03 06:13:09,815 INFO L413 NwaCegarLoop]: 2492 mSDtfsCounter, 1718 mSDsluCounter, 11483 mSDsCounter, 0 mSdLazyCounter, 1509 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1722 SdHoareTripleChecker+Valid, 13975 SdHoareTripleChecker+Invalid, 1511 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 1509 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2023-04-03 06:13:09,815 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1722 Valid, 13975 Invalid, 1511 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 1509 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2023-04-03 06:13:09,831 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12573 states. [2023-04-03 06:13:10,403 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12573 to 9716. [2023-04-03 06:13:10,419 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9716 states, 5664 states have (on average 1.2801906779661016) internal successors, (7251), 6143 states have internal predecessors, (7251), 2870 states have call successors, (2870), 1179 states have call predecessors, (2870), 1181 states have return successors, (2941), 2768 states have call predecessors, (2941), 2868 states have call successors, (2941) [2023-04-03 06:13:10,461 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9716 states to 9716 states and 13062 transitions. [2023-04-03 06:13:10,466 INFO L78 Accepts]: Start accepts. Automaton has 9716 states and 13062 transitions. Word has length 130 [2023-04-03 06:13:10,466 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-03 06:13:10,467 INFO L495 AbstractCegarLoop]: Abstraction has 9716 states and 13062 transitions. [2023-04-03 06:13:10,467 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 9.714285714285714) internal successors, (68), 5 states have internal predecessors, (68), 3 states have call successors, (26), 4 states have call predecessors, (26), 4 states have return successors, (17), 4 states have call predecessors, (17), 2 states have call successors, (17) [2023-04-03 06:13:10,467 INFO L276 IsEmpty]: Start isEmpty. Operand 9716 states and 13062 transitions. [2023-04-03 06:13:10,472 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2023-04-03 06:13:10,472 INFO L187 NwaCegarLoop]: Found error trace [2023-04-03 06:13:10,472 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-03 06:13:10,488 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2023-04-03 06:13:10,687 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-03 06:13:10,687 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-03 06:13:10,687 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-03 06:13:10,687 INFO L85 PathProgramCache]: Analyzing trace with hash -1969877729, now seen corresponding path program 1 times [2023-04-03 06:13:10,688 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-03 06:13:10,688 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [154282211] [2023-04-03 06:13:10,688 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-03 06:13:10,688 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-03 06:13:10,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-03 06:13:11,367 INFO L134 CoverageAnalysis]: Checked inductivity of 67 backedges. 23 proven. 10 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2023-04-03 06:13:11,367 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-03 06:13:11,367 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [154282211] [2023-04-03 06:13:11,367 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [154282211] provided 0 perfect and 1 imperfect interpolant sequences [2023-04-03 06:13:11,367 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [512216642] [2023-04-03 06:13:11,367 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-03 06:13:11,368 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-03 06:13:11,368 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-03 06:13:11,369 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-04-03 06:13:11,372 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-04-03 06:13:12,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-03 06:13:12,229 INFO L262 TraceCheckSpWp]: Trace formula consists of 3705 conjuncts, 16 conjunts are in the unsatisfiable core [2023-04-03 06:13:12,235 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-04-03 06:13:12,383 INFO L134 CoverageAnalysis]: Checked inductivity of 67 backedges. 18 proven. 11 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2023-04-03 06:13:12,384 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-04-03 06:13:12,876 INFO L134 CoverageAnalysis]: Checked inductivity of 67 backedges. 24 proven. 5 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2023-04-03 06:13:12,877 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [512216642] provided 0 perfect and 2 imperfect interpolant sequences [2023-04-03 06:13:12,877 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [433972546] [2023-04-03 06:13:12,902 INFO L159 IcfgInterpreter]: Started Sifa with 99 locations of interest [2023-04-03 06:13:12,902 INFO L166 IcfgInterpreter]: Building call graph [2023-04-03 06:13:12,906 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2023-04-03 06:13:12,911 INFO L176 IcfgInterpreter]: Starting interpretation [2023-04-03 06:13:12,911 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2023-04-03 06:13:44,403 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.init with input of size 190 for LOIs [2023-04-03 06:13:57,012 INFO L197 IcfgInterpreter]: Interpreting procedure main with input of size 210 for LOIs [2023-04-03 06:16:10,001 WARN L223 SmtUtils]: Spent 2.16m on a formula simplification. DAG size of input: 14654 DAG size of output: 229 (called from [L 212] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.BasicPredicateFactory.xJunctTerm)