/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 EqDomain -i ../sv-benchmarks/c/ldv-consumption/linux-3.8-rc1-32_7a-drivers--media--usb--ttusb-dec--ttusb_dec.ko-ldv_main0.cil.out.i -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-f954360 [2023-04-01 13:24:04,132 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-04-01 13:24:04,134 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-04-01 13:24:04,174 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-04-01 13:24:04,175 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-04-01 13:24:04,178 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-04-01 13:24:04,181 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-04-01 13:24:04,183 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-04-01 13:24:04,184 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-04-01 13:24:04,188 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-04-01 13:24:04,189 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-04-01 13:24:04,191 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-04-01 13:24:04,191 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-04-01 13:24:04,193 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-04-01 13:24:04,194 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-04-01 13:24:04,195 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-04-01 13:24:04,196 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-04-01 13:24:04,197 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-04-01 13:24:04,198 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-04-01 13:24:04,203 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-04-01 13:24:04,204 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-04-01 13:24:04,205 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-04-01 13:24:04,206 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-04-01 13:24:04,207 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-04-01 13:24:04,215 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-04-01 13:24:04,215 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-04-01 13:24:04,215 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-04-01 13:24:04,217 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-04-01 13:24:04,217 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-04-01 13:24:04,218 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-04-01 13:24:04,218 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-04-01 13:24:04,219 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-04-01 13:24:04,220 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-04-01 13:24:04,221 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-04-01 13:24:04,221 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-04-01 13:24:04,221 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-04-01 13:24:04,222 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-04-01 13:24:04,222 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-04-01 13:24:04,222 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-04-01 13:24:04,223 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-04-01 13:24:04,223 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-04-01 13:24:04,225 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/taipan/svcomp-Reach-32bit-Taipan_Default.epf [2023-04-01 13:24:04,254 INFO L113 SettingsManager]: Loading preferences was successful [2023-04-01 13:24:04,254 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-04-01 13:24:04,255 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-04-01 13:24:04,255 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-04-01 13:24:04,256 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-04-01 13:24:04,256 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-04-01 13:24:04,256 INFO L138 SettingsManager]: * User list type=DISABLED [2023-04-01 13:24:04,256 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-04-01 13:24:04,256 INFO L138 SettingsManager]: * Explicit value domain=true [2023-04-01 13:24:04,256 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-04-01 13:24:04,257 INFO L138 SettingsManager]: * Octagon Domain=false [2023-04-01 13:24:04,257 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2023-04-01 13:24:04,257 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-04-01 13:24:04,257 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-04-01 13:24:04,258 INFO L138 SettingsManager]: * Interval Domain=false [2023-04-01 13:24:04,258 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-04-01 13:24:04,258 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-04-01 13:24:04,258 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2023-04-01 13:24:04,258 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-04-01 13:24:04,259 INFO L138 SettingsManager]: * sizeof long=4 [2023-04-01 13:24:04,259 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-04-01 13:24:04,259 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-04-01 13:24:04,259 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-04-01 13:24:04,259 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-04-01 13:24:04,259 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-04-01 13:24:04,260 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-04-01 13:24:04,260 INFO L138 SettingsManager]: * sizeof long double=12 [2023-04-01 13:24:04,260 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-04-01 13:24:04,260 INFO L138 SettingsManager]: * Use constant arrays=true [2023-04-01 13:24:04,260 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-04-01 13:24:04,260 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-04-01 13:24:04,261 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-04-01 13:24:04,261 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-04-01 13:24:04,261 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-04-01 13:24:04,261 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2023-04-01 13:24:04,261 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-04-01 13:24:04,261 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-04-01 13:24:04,261 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-04-01 13:24:04,262 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-04-01 13:24:04,262 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-04-01 13:24:04,262 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-04-01 13:24:04,262 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Abstract Domain -> EqDomain [2023-04-01 13:24:04,487 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-04-01 13:24:04,515 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-04-01 13:24:04,518 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-04-01 13:24:04,519 INFO L271 PluginConnector]: Initializing CDTParser... [2023-04-01 13:24:04,519 INFO L275 PluginConnector]: CDTParser initialized [2023-04-01 13:24:04,520 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-consumption/linux-3.8-rc1-32_7a-drivers--media--usb--ttusb-dec--ttusb_dec.ko-ldv_main0.cil.out.i [2023-04-01 13:24:05,686 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-04-01 13:24:06,166 INFO L351 CDTParser]: Found 1 translation units. [2023-04-01 13:24:06,167 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-consumption/linux-3.8-rc1-32_7a-drivers--media--usb--ttusb-dec--ttusb_dec.ko-ldv_main0.cil.out.i [2023-04-01 13:24:06,200 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9407a29bd/799bd8a260aa4220a6343516b7751422/FLAGf03465ea6 [2023-04-01 13:24:06,217 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9407a29bd/799bd8a260aa4220a6343516b7751422 [2023-04-01 13:24:06,219 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-04-01 13:24:06,221 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2023-04-01 13:24:06,222 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-04-01 13:24:06,222 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-04-01 13:24:06,224 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-04-01 13:24:06,225 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.04 01:24:06" (1/1) ... [2023-04-01 13:24:06,226 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@50467168 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 01:24:06, skipping insertion in model container [2023-04-01 13:24:06,226 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.04 01:24:06" (1/1) ... [2023-04-01 13:24:06,231 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-04-01 13:24:06,351 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-04-01 13:24:07,843 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-consumption/linux-3.8-rc1-32_7a-drivers--media--usb--ttusb-dec--ttusb_dec.ko-ldv_main0.cil.out.i[247200,247213] [2023-04-01 13:24:07,939 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-04-01 13:24:07,954 INFO L203 MainTranslator]: Completed pre-run [2023-04-01 13:24:08,266 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-consumption/linux-3.8-rc1-32_7a-drivers--media--usb--ttusb-dec--ttusb_dec.ko-ldv_main0.cil.out.i[247200,247213] [2023-04-01 13:24:08,278 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-04-01 13:24:08,326 INFO L208 MainTranslator]: Completed translation [2023-04-01 13:24:08,327 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 01:24:08 WrapperNode [2023-04-01 13:24:08,327 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-04-01 13:24:08,328 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-04-01 13:24:08,328 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-04-01 13:24:08,328 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-04-01 13:24:08,338 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 01:24:08" (1/1) ... [2023-04-01 13:24:08,339 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 01:24:08" (1/1) ... [2023-04-01 13:24:08,409 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 01:24:08" (1/1) ... [2023-04-01 13:24:08,410 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 01:24:08" (1/1) ... [2023-04-01 13:24:08,519 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 01:24:08" (1/1) ... [2023-04-01 13:24:08,551 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 01:24:08" (1/1) ... [2023-04-01 13:24:08,640 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 01:24:08" (1/1) ... [2023-04-01 13:24:08,653 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 01:24:08" (1/1) ... [2023-04-01 13:24:08,679 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-04-01 13:24:08,680 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-04-01 13:24:08,680 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-04-01 13:24:08,681 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-04-01 13:24:08,681 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 01:24:08" (1/1) ... [2023-04-01 13:24:08,688 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-04-01 13:24:08,697 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-01 13:24:08,714 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-04-01 13:24:08,736 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-04-01 13:24:08,753 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2023-04-01 13:24:08,753 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-04-01 13:24:08,753 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~int~X~$Pointer$~X~~gfp_t~0~X~$Pointer$~TO~$Pointer$ [2023-04-01 13:24:08,753 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~int~X~$Pointer$~X~~dma_addr_t~0~X~$Pointer$~TO~VOID [2023-04-01 13:24:08,753 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~int~X~$Pointer$~X~int~X~$Pointer$~X~int~TO~int [2023-04-01 13:24:08,753 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2023-04-01 13:24:08,753 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2023-04-01 13:24:08,753 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2023-04-01 13:24:08,753 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2023-04-01 13:24:08,753 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2023-04-01 13:24:08,754 INFO L138 BoogieDeclarations]: Found implementation of procedure test_and_set_bit [2023-04-01 13:24:08,754 INFO L138 BoogieDeclarations]: Found implementation of procedure __arch_swab32 [2023-04-01 13:24:08,754 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab16 [2023-04-01 13:24:08,754 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab32 [2023-04-01 13:24:08,754 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2023-04-01 13:24:08,754 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add_tail [2023-04-01 13:24:08,755 INFO L138 BoogieDeclarations]: Found implementation of procedure arch_local_save_flags [2023-04-01 13:24:08,755 INFO L138 BoogieDeclarations]: Found implementation of procedure arch_irqs_disabled_flags [2023-04-01 13:24:08,755 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2023-04-01 13:24:08,755 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2023-04-01 13:24:08,755 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-04-01 13:24:08,755 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2023-04-01 13:24:08,755 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2023-04-01 13:24:08,755 INFO L138 BoogieDeclarations]: Found implementation of procedure __kmalloc [2023-04-01 13:24:08,755 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2023-04-01 13:24:08,756 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2023-04-01 13:24:08,756 INFO L138 BoogieDeclarations]: Found implementation of procedure is_device_dma_capable [2023-04-01 13:24:08,756 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2023-04-01 13:24:08,756 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_alloc_coherent_mask [2023-04-01 13:24:08,756 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_alloc_coherent_gfp_flags [2023-04-01 13:24:08,756 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_alloc_attrs [2023-04-01 13:24:08,756 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_free_attrs [2023-04-01 13:24:08,756 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_alloc_consistent [2023-04-01 13:24:08,756 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_free_consistent [2023-04-01 13:24:08,756 INFO L138 BoogieDeclarations]: Found implementation of procedure tasklet_schedule [2023-04-01 13:24:08,756 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_get_intfdata [2023-04-01 13:24:08,757 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_set_intfdata [2023-04-01 13:24:08,757 INFO L138 BoogieDeclarations]: Found implementation of procedure interface_to_usbdev [2023-04-01 13:24:08,757 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_make_path [2023-04-01 13:24:08,757 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_fill_int_urb [2023-04-01 13:24:08,757 INFO L138 BoogieDeclarations]: Found implementation of procedure __create_pipe [2023-04-01 13:24:08,757 INFO L138 BoogieDeclarations]: Found implementation of procedure input_allocate_device [2023-04-01 13:24:08,757 INFO L138 BoogieDeclarations]: Found implementation of procedure input_report_key [2023-04-01 13:24:08,758 INFO L138 BoogieDeclarations]: Found implementation of procedure input_sync [2023-04-01 13:24:08,758 INFO L138 BoogieDeclarations]: Found implementation of procedure ttusb_dec_handle_irq [2023-04-01 13:24:08,758 INFO L138 BoogieDeclarations]: Found implementation of procedure crc16 [2023-04-01 13:24:08,759 INFO L138 BoogieDeclarations]: Found implementation of procedure ttusb_dec_send_command [2023-04-01 13:24:08,759 INFO L138 BoogieDeclarations]: Found implementation of procedure ttusb_dec_get_stb_state [2023-04-01 13:24:08,759 INFO L138 BoogieDeclarations]: Found implementation of procedure ttusb_dec_audio_pes2ts_cb [2023-04-01 13:24:08,759 INFO L138 BoogieDeclarations]: Found implementation of procedure ttusb_dec_video_pes2ts_cb [2023-04-01 13:24:08,759 INFO L138 BoogieDeclarations]: Found implementation of procedure ttusb_dec_set_pids [2023-04-01 13:24:08,759 INFO L138 BoogieDeclarations]: Found implementation of procedure ttusb_dec_process_pva [2023-04-01 13:24:08,759 INFO L138 BoogieDeclarations]: Found implementation of procedure ttusb_dec_process_filter [2023-04-01 13:24:08,759 INFO L138 BoogieDeclarations]: Found implementation of procedure ttusb_dec_process_packet [2023-04-01 13:24:08,760 INFO L138 BoogieDeclarations]: Found implementation of procedure swap_bytes [2023-04-01 13:24:08,760 INFO L138 BoogieDeclarations]: Found implementation of procedure ttusb_dec_process_urb_frame [2023-04-01 13:24:08,760 INFO L138 BoogieDeclarations]: Found implementation of procedure ttusb_dec_process_urb_frame_list [2023-04-01 13:24:08,761 INFO L138 BoogieDeclarations]: Found implementation of procedure ttusb_dec_process_urb [2023-04-01 13:24:08,761 INFO L138 BoogieDeclarations]: Found implementation of procedure ttusb_dec_setup_urbs [2023-04-01 13:24:08,761 INFO L138 BoogieDeclarations]: Found implementation of procedure ttusb_dec_stop_iso_xfer [2023-04-01 13:24:08,762 INFO L138 BoogieDeclarations]: Found implementation of procedure ttusb_dec_set_interface [2023-04-01 13:24:08,762 INFO L138 BoogieDeclarations]: Found implementation of procedure ttusb_dec_start_iso_xfer [2023-04-01 13:24:08,762 INFO L138 BoogieDeclarations]: Found implementation of procedure ttusb_dec_start_ts_feed [2023-04-01 13:24:08,762 INFO L138 BoogieDeclarations]: Found implementation of procedure ttusb_dec_start_sec_feed [2023-04-01 13:24:08,762 INFO L138 BoogieDeclarations]: Found implementation of procedure ttusb_dec_start_feed [2023-04-01 13:24:08,762 INFO L138 BoogieDeclarations]: Found implementation of procedure ttusb_dec_stop_ts_feed [2023-04-01 13:24:08,762 INFO L138 BoogieDeclarations]: Found implementation of procedure ttusb_dec_stop_sec_feed [2023-04-01 13:24:08,762 INFO L138 BoogieDeclarations]: Found implementation of procedure ttusb_dec_stop_feed [2023-04-01 13:24:08,762 INFO L138 BoogieDeclarations]: Found implementation of procedure ttusb_dec_free_iso_urbs [2023-04-01 13:24:08,762 INFO L138 BoogieDeclarations]: Found implementation of procedure ttusb_dec_alloc_iso_urbs [2023-04-01 13:24:08,762 INFO L138 BoogieDeclarations]: Found implementation of procedure ttusb_dec_init_tasklet [2023-04-01 13:24:08,762 INFO L138 BoogieDeclarations]: Found implementation of procedure ttusb_init_rc [2023-04-01 13:24:08,763 INFO L138 BoogieDeclarations]: Found implementation of procedure ttusb_dec_init_v_pes [2023-04-01 13:24:08,763 INFO L138 BoogieDeclarations]: Found implementation of procedure ttusb_dec_init_usb [2023-04-01 13:24:08,763 INFO L138 BoogieDeclarations]: Found implementation of procedure ttusb_dec_boot_dsp [2023-04-01 13:24:08,763 INFO L138 BoogieDeclarations]: Found implementation of procedure ttusb_dec_init_stb [2023-04-01 13:24:08,763 INFO L138 BoogieDeclarations]: Found implementation of procedure ttusb_dec_init_dvb [2023-04-01 13:24:08,763 INFO L138 BoogieDeclarations]: Found implementation of procedure ttusb_dec_exit_dvb [2023-04-01 13:24:08,763 INFO L138 BoogieDeclarations]: Found implementation of procedure ttusb_dec_exit_rc [2023-04-01 13:24:08,763 INFO L138 BoogieDeclarations]: Found implementation of procedure ttusb_dec_exit_usb [2023-04-01 13:24:08,763 INFO L138 BoogieDeclarations]: Found implementation of procedure ttusb_dec_exit_tasklet [2023-04-01 13:24:08,764 INFO L138 BoogieDeclarations]: Found implementation of procedure ttusb_dec_init_filters [2023-04-01 13:24:08,764 INFO L138 BoogieDeclarations]: Found implementation of procedure ttusb_dec_exit_filters [2023-04-01 13:24:08,765 INFO L138 BoogieDeclarations]: Found implementation of procedure fe_send_command [2023-04-01 13:24:08,765 INFO L138 BoogieDeclarations]: Found implementation of procedure ttusb_dec_probe [2023-04-01 13:24:08,765 INFO L138 BoogieDeclarations]: Found implementation of procedure ttusb_dec_disconnect [2023-04-01 13:24:08,765 INFO L138 BoogieDeclarations]: Found implementation of procedure ttusb_dec_set_model [2023-04-01 13:24:08,765 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2023-04-01 13:24:08,765 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_1 [2023-04-01 13:24:08,765 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_2 [2023-04-01 13:24:08,765 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_3 [2023-04-01 13:24:08,765 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_trylock_4 [2023-04-01 13:24:08,765 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_5 [2023-04-01 13:24:08,765 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_interruptible_6 [2023-04-01 13:24:08,766 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_7 [2023-04-01 13:24:08,766 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_8 [2023-04-01 13:24:08,766 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_9 [2023-04-01 13:24:08,766 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_interruptible_10 [2023-04-01 13:24:08,766 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_11 [2023-04-01 13:24:08,766 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_interruptible_12 [2023-04-01 13:24:08,766 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_13 [2023-04-01 13:24:08,766 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_14 [2023-04-01 13:24:08,766 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2023-04-01 13:24:08,766 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2023-04-01 13:24:08,766 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_interruptible_iso_mutex_of_ttusb_dec [2023-04-01 13:24:08,766 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_killable_iso_mutex_of_ttusb_dec [2023-04-01 13:24:08,767 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_iso_mutex_of_ttusb_dec [2023-04-01 13:24:08,767 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_trylock_iso_mutex_of_ttusb_dec [2023-04-01 13:24:08,767 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_dec_and_mutex_lock_iso_mutex_of_ttusb_dec [2023-04-01 13:24:08,767 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_is_locked_iso_mutex_of_ttusb_dec [2023-04-01 13:24:08,767 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_iso_mutex_of_ttusb_dec [2023-04-01 13:24:08,767 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_interruptible_lock [2023-04-01 13:24:08,767 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_killable_lock [2023-04-01 13:24:08,767 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_lock [2023-04-01 13:24:08,767 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_trylock_lock [2023-04-01 13:24:08,768 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_dec_and_mutex_lock_lock [2023-04-01 13:24:08,768 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_is_locked_lock [2023-04-01 13:24:08,768 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_lock [2023-04-01 13:24:08,768 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_interruptible_mutex_of_device [2023-04-01 13:24:08,768 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_killable_mutex_of_device [2023-04-01 13:24:08,769 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_mutex_of_device [2023-04-01 13:24:08,769 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_trylock_mutex_of_device [2023-04-01 13:24:08,771 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_dec_and_mutex_lock_mutex_of_device [2023-04-01 13:24:08,771 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_is_locked_mutex_of_device [2023-04-01 13:24:08,776 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_mutex_of_device [2023-04-01 13:24:08,776 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_interruptible_usb_mutex_of_ttusb_dec [2023-04-01 13:24:08,776 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_killable_usb_mutex_of_ttusb_dec [2023-04-01 13:24:08,776 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_usb_mutex_of_ttusb_dec [2023-04-01 13:24:08,776 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_trylock_usb_mutex_of_ttusb_dec [2023-04-01 13:24:08,776 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_dec_and_mutex_lock_usb_mutex_of_ttusb_dec [2023-04-01 13:24:08,776 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_is_locked_usb_mutex_of_ttusb_dec [2023-04-01 13:24:08,776 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_usb_mutex_of_ttusb_dec [2023-04-01 13:24:08,776 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize [2023-04-01 13:24:08,776 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2023-04-01 13:24:08,777 INFO L138 BoogieDeclarations]: Found implementation of procedure __list_add [2023-04-01 13:24:08,777 INFO L138 BoogieDeclarations]: Found implementation of procedure __mutex_init [2023-04-01 13:24:08,777 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2023-04-01 13:24:08,777 INFO L138 BoogieDeclarations]: Found implementation of procedure __tasklet_schedule [2023-04-01 13:24:08,777 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock_irqsave [2023-04-01 13:24:08,777 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_unlock_irqrestore [2023-04-01 13:24:08,777 INFO L138 BoogieDeclarations]: Found implementation of procedure crc32_le [2023-04-01 13:24:08,777 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_dma_alloc_coherent [2023-04-01 13:24:08,777 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_dma_free_coherent [2023-04-01 13:24:08,778 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_get_drvdata [2023-04-01 13:24:08,778 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_set_drvdata [2023-04-01 13:24:08,778 INFO L138 BoogieDeclarations]: Found implementation of procedure dvb_dmx_init [2023-04-01 13:24:08,778 INFO L138 BoogieDeclarations]: Found implementation of procedure dvb_dmx_release [2023-04-01 13:24:08,778 INFO L138 BoogieDeclarations]: Found implementation of procedure dvb_dmxdev_init [2023-04-01 13:24:08,778 INFO L138 BoogieDeclarations]: Found implementation of procedure dvb_dmxdev_release [2023-04-01 13:24:08,778 INFO L138 BoogieDeclarations]: Found implementation of procedure dvb_filter_pes2ts [2023-04-01 13:24:08,778 INFO L138 BoogieDeclarations]: Found implementation of procedure dvb_filter_pes2ts_init [2023-04-01 13:24:08,778 INFO L138 BoogieDeclarations]: Found implementation of procedure dvb_net_init [2023-04-01 13:24:08,778 INFO L138 BoogieDeclarations]: Found implementation of procedure dvb_net_release [2023-04-01 13:24:08,778 INFO L138 BoogieDeclarations]: Found implementation of procedure dvb_register_adapter [2023-04-01 13:24:08,778 INFO L138 BoogieDeclarations]: Found implementation of procedure dvb_register_frontend [2023-04-01 13:24:08,778 INFO L138 BoogieDeclarations]: Found implementation of procedure dvb_unregister_adapter [2023-04-01 13:24:08,778 INFO L138 BoogieDeclarations]: Found implementation of procedure dvb_unregister_frontend [2023-04-01 13:24:08,778 INFO L138 BoogieDeclarations]: Found implementation of procedure input_event [2023-04-01 13:24:08,779 INFO L138 BoogieDeclarations]: Found implementation of procedure input_free_device [2023-04-01 13:24:08,779 INFO L138 BoogieDeclarations]: Found implementation of procedure input_register_device [2023-04-01 13:24:08,779 INFO L138 BoogieDeclarations]: Found implementation of procedure input_unregister_device [2023-04-01 13:24:08,779 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_return_value [2023-04-01 13:24:08,779 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_return_value_probe [2023-04-01 13:24:08,779 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_handler_precall [2023-04-01 13:24:08,779 INFO L138 BoogieDeclarations]: Found implementation of procedure list_del [2023-04-01 13:24:08,779 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock [2023-04-01 13:24:08,779 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_interruptible [2023-04-01 13:24:08,779 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_trylock [2023-04-01 13:24:08,779 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2023-04-01 13:24:08,779 INFO L138 BoogieDeclarations]: Found implementation of procedure printk [2023-04-01 13:24:08,780 INFO L138 BoogieDeclarations]: Found implementation of procedure release_firmware [2023-04-01 13:24:08,780 INFO L138 BoogieDeclarations]: Found implementation of procedure request_firmware [2023-04-01 13:24:08,780 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcat [2023-04-01 13:24:08,780 INFO L138 BoogieDeclarations]: Found implementation of procedure tasklet_init [2023-04-01 13:24:08,780 INFO L138 BoogieDeclarations]: Found implementation of procedure tasklet_kill [2023-04-01 13:24:08,780 INFO L138 BoogieDeclarations]: Found implementation of procedure ttusbdecfe_dvbs_attach [2023-04-01 13:24:08,780 INFO L138 BoogieDeclarations]: Found implementation of procedure ttusbdecfe_dvbt_attach [2023-04-01 13:24:08,781 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_alloc_coherent [2023-04-01 13:24:08,781 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_alloc_urb [2023-04-01 13:24:08,781 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_bulk_msg [2023-04-01 13:24:08,781 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_free_coherent [2023-04-01 13:24:08,781 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_free_urb [2023-04-01 13:24:08,781 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_kill_urb [2023-04-01 13:24:08,781 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_set_interface [2023-04-01 13:24:08,781 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_submit_urb [2023-04-01 13:24:08,781 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2023-04-01 13:24:08,782 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2023-04-01 13:24:08,782 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2023-04-01 13:24:08,783 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2023-04-01 13:24:08,783 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2023-04-01 13:24:08,783 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2023-04-01 13:24:08,783 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_perror_fail [2023-04-01 13:24:08,783 INFO L130 BoogieDeclarations]: Found specification of procedure __assert [2023-04-01 13:24:08,783 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2023-04-01 13:24:08,783 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-04-01 13:24:08,783 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2023-04-01 13:24:08,783 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2023-04-01 13:24:08,783 INFO L130 BoogieDeclarations]: Found specification of procedure test_and_set_bit [2023-04-01 13:24:08,783 INFO L130 BoogieDeclarations]: Found specification of procedure __arch_swab32 [2023-04-01 13:24:08,783 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab16 [2023-04-01 13:24:08,784 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab32 [2023-04-01 13:24:08,784 INFO L130 BoogieDeclarations]: Found specification of procedure printk [2023-04-01 13:24:08,784 INFO L130 BoogieDeclarations]: Found specification of procedure snprintf [2023-04-01 13:24:08,784 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2023-04-01 13:24:08,784 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-04-01 13:24:08,784 INFO L130 BoogieDeclarations]: Found specification of procedure __list_add [2023-04-01 13:24:08,784 INFO L130 BoogieDeclarations]: Found specification of procedure list_add_tail [2023-04-01 13:24:08,784 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-04-01 13:24:08,784 INFO L130 BoogieDeclarations]: Found specification of procedure list_del [2023-04-01 13:24:08,784 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy [2023-04-01 13:24:08,784 INFO L130 BoogieDeclarations]: Found specification of procedure memset [2023-04-01 13:24:08,784 INFO L130 BoogieDeclarations]: Found specification of procedure strlcat [2023-04-01 13:24:08,784 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2023-04-01 13:24:08,784 INFO L130 BoogieDeclarations]: Found specification of procedure arch_local_save_flags [2023-04-01 13:24:08,784 INFO L130 BoogieDeclarations]: Found specification of procedure arch_irqs_disabled_flags [2023-04-01 13:24:08,784 INFO L130 BoogieDeclarations]: Found specification of procedure __mutex_init [2023-04-01 13:24:08,785 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_trylock [2023-04-01 13:24:08,785 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_trylock_4 [2023-04-01 13:24:08,785 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2023-04-01 13:24:08,785 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_2 [2023-04-01 13:24:08,785 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_5 [2023-04-01 13:24:08,785 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_7 [2023-04-01 13:24:08,785 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_8 [2023-04-01 13:24:08,785 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_9 [2023-04-01 13:24:08,785 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_11 [2023-04-01 13:24:08,785 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_13 [2023-04-01 13:24:08,785 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_14 [2023-04-01 13:24:08,785 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_interruptible [2023-04-01 13:24:08,785 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_interruptible_6 [2023-04-01 13:24:08,785 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_interruptible_10 [2023-04-01 13:24:08,785 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_interruptible_12 [2023-04-01 13:24:08,785 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock [2023-04-01 13:24:08,785 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_1 [2023-04-01 13:24:08,786 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_3 [2023-04-01 13:24:08,786 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_interruptible_iso_mutex_of_ttusb_dec [2023-04-01 13:24:08,786 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_iso_mutex_of_ttusb_dec [2023-04-01 13:24:08,786 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_lock [2023-04-01 13:24:08,786 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_lock [2023-04-01 13:24:08,786 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_mutex_of_device [2023-04-01 13:24:08,786 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_trylock_mutex_of_device [2023-04-01 13:24:08,786 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_mutex_of_device [2023-04-01 13:24:08,786 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_interruptible_usb_mutex_of_ttusb_dec [2023-04-01 13:24:08,786 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_usb_mutex_of_ttusb_dec [2023-04-01 13:24:08,786 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2023-04-01 13:24:08,786 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock_irqsave [2023-04-01 13:24:08,786 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_unlock_irqrestore [2023-04-01 13:24:08,786 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2023-04-01 13:24:08,786 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2023-04-01 13:24:08,787 INFO L130 BoogieDeclarations]: Found specification of procedure dev_get_drvdata [2023-04-01 13:24:08,790 INFO L130 BoogieDeclarations]: Found specification of procedure dev_set_drvdata [2023-04-01 13:24:08,790 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2023-04-01 13:24:08,791 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2023-04-01 13:24:08,791 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-04-01 13:24:08,791 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2023-04-01 13:24:08,791 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2023-04-01 13:24:08,791 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2023-04-01 13:24:08,791 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-04-01 13:24:08,791 INFO L130 BoogieDeclarations]: Found specification of procedure __kmalloc [2023-04-01 13:24:08,791 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2023-04-01 13:24:08,791 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2023-04-01 13:24:08,791 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2023-04-01 13:24:08,791 INFO L130 BoogieDeclarations]: Found specification of procedure is_device_dma_capable [2023-04-01 13:24:08,791 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-04-01 13:24:08,792 INFO L130 BoogieDeclarations]: Found specification of procedure debug_dma_alloc_coherent [2023-04-01 13:24:08,792 INFO L130 BoogieDeclarations]: Found specification of procedure debug_dma_free_coherent [2023-04-01 13:24:08,792 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2023-04-01 13:24:08,792 INFO L130 BoogieDeclarations]: Found specification of procedure dma_alloc_coherent_mask [2023-04-01 13:24:08,792 INFO L130 BoogieDeclarations]: Found specification of procedure dma_alloc_coherent_gfp_flags [2023-04-01 13:24:08,792 INFO L130 BoogieDeclarations]: Found specification of procedure dma_alloc_attrs [2023-04-01 13:24:08,792 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~int~X~$Pointer$~X~~gfp_t~0~X~$Pointer$~TO~$Pointer$ [2023-04-01 13:24:08,792 INFO L130 BoogieDeclarations]: Found specification of procedure dma_free_attrs [2023-04-01 13:24:08,792 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~int~X~$Pointer$~X~~dma_addr_t~0~X~$Pointer$~TO~VOID [2023-04-01 13:24:08,792 INFO L130 BoogieDeclarations]: Found specification of procedure pci_alloc_consistent [2023-04-01 13:24:08,792 INFO L130 BoogieDeclarations]: Found specification of procedure pci_free_consistent [2023-04-01 13:24:08,792 INFO L130 BoogieDeclarations]: Found specification of procedure __tasklet_schedule [2023-04-01 13:24:08,792 INFO L130 BoogieDeclarations]: Found specification of procedure tasklet_schedule [2023-04-01 13:24:08,792 INFO L130 BoogieDeclarations]: Found specification of procedure tasklet_kill [2023-04-01 13:24:08,792 INFO L130 BoogieDeclarations]: Found specification of procedure tasklet_init [2023-04-01 13:24:08,792 INFO L130 BoogieDeclarations]: Found specification of procedure usb_get_intfdata [2023-04-01 13:24:08,792 INFO L130 BoogieDeclarations]: Found specification of procedure usb_set_intfdata [2023-04-01 13:24:08,793 INFO L130 BoogieDeclarations]: Found specification of procedure interface_to_usbdev [2023-04-01 13:24:08,793 INFO L130 BoogieDeclarations]: Found specification of procedure usb_make_path [2023-04-01 13:24:08,793 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-04-01 13:24:08,793 INFO L130 BoogieDeclarations]: Found specification of procedure usb_fill_int_urb [2023-04-01 13:24:08,793 INFO L130 BoogieDeclarations]: Found specification of procedure usb_alloc_urb [2023-04-01 13:24:08,793 INFO L130 BoogieDeclarations]: Found specification of procedure usb_free_urb [2023-04-01 13:24:08,793 INFO L130 BoogieDeclarations]: Found specification of procedure usb_submit_urb [2023-04-01 13:24:08,793 INFO L130 BoogieDeclarations]: Found specification of procedure usb_kill_urb [2023-04-01 13:24:08,793 INFO L130 BoogieDeclarations]: Found specification of procedure usb_alloc_coherent [2023-04-01 13:24:08,793 INFO L130 BoogieDeclarations]: Found specification of procedure usb_free_coherent [2023-04-01 13:24:08,793 INFO L130 BoogieDeclarations]: Found specification of procedure usb_bulk_msg [2023-04-01 13:24:08,793 INFO L130 BoogieDeclarations]: Found specification of procedure usb_set_interface [2023-04-01 13:24:08,793 INFO L130 BoogieDeclarations]: Found specification of procedure __create_pipe [2023-04-01 13:24:08,793 INFO L130 BoogieDeclarations]: Found specification of procedure request_firmware [2023-04-01 13:24:08,793 INFO L130 BoogieDeclarations]: Found specification of procedure release_firmware [2023-04-01 13:24:08,793 INFO L130 BoogieDeclarations]: Found specification of procedure crc32_le [2023-04-01 13:24:08,793 INFO L130 BoogieDeclarations]: Found specification of procedure input_allocate_device [2023-04-01 13:24:08,794 INFO L130 BoogieDeclarations]: Found specification of procedure input_free_device [2023-04-01 13:24:08,794 INFO L130 BoogieDeclarations]: Found specification of procedure input_register_device [2023-04-01 13:24:08,794 INFO L130 BoogieDeclarations]: Found specification of procedure input_unregister_device [2023-04-01 13:24:08,794 INFO L130 BoogieDeclarations]: Found specification of procedure input_event [2023-04-01 13:24:08,794 INFO L130 BoogieDeclarations]: Found specification of procedure input_report_key [2023-04-01 13:24:08,794 INFO L130 BoogieDeclarations]: Found specification of procedure input_sync [2023-04-01 13:24:08,794 INFO L130 BoogieDeclarations]: Found specification of procedure dvb_register_adapter [2023-04-01 13:24:08,794 INFO L130 BoogieDeclarations]: Found specification of procedure dvb_unregister_adapter [2023-04-01 13:24:08,794 INFO L130 BoogieDeclarations]: Found specification of procedure dvb_dmxdev_init [2023-04-01 13:24:08,794 INFO L130 BoogieDeclarations]: Found specification of procedure dvb_dmxdev_release [2023-04-01 13:24:08,794 INFO L130 BoogieDeclarations]: Found specification of procedure dvb_dmx_init [2023-04-01 13:24:08,794 INFO L130 BoogieDeclarations]: Found specification of procedure dvb_dmx_release [2023-04-01 13:24:08,794 INFO L130 BoogieDeclarations]: Found specification of procedure dvb_filter_pes2ts_init [2023-04-01 13:24:08,794 INFO L130 BoogieDeclarations]: Found specification of procedure dvb_filter_pes2ts [2023-04-01 13:24:08,794 INFO L130 BoogieDeclarations]: Found specification of procedure dvb_register_frontend [2023-04-01 13:24:08,794 INFO L130 BoogieDeclarations]: Found specification of procedure dvb_unregister_frontend [2023-04-01 13:24:08,794 INFO L130 BoogieDeclarations]: Found specification of procedure dvb_net_release [2023-04-01 13:24:08,795 INFO L130 BoogieDeclarations]: Found specification of procedure dvb_net_init [2023-04-01 13:24:08,795 INFO L130 BoogieDeclarations]: Found specification of procedure ttusbdecfe_dvbs_attach [2023-04-01 13:24:08,795 INFO L130 BoogieDeclarations]: Found specification of procedure ttusbdecfe_dvbt_attach [2023-04-01 13:24:08,795 INFO L130 BoogieDeclarations]: Found specification of procedure ttusb_dec_set_model [2023-04-01 13:24:08,795 INFO L130 BoogieDeclarations]: Found specification of procedure ttusb_dec_handle_irq [2023-04-01 13:24:08,795 INFO L130 BoogieDeclarations]: Found specification of procedure crc16 [2023-04-01 13:24:08,795 INFO L130 BoogieDeclarations]: Found specification of procedure ttusb_dec_send_command [2023-04-01 13:24:08,795 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-04-01 13:24:08,795 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2023-04-01 13:24:08,795 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-04-01 13:24:08,795 INFO L130 BoogieDeclarations]: Found specification of procedure ttusb_dec_get_stb_state [2023-04-01 13:24:08,796 INFO L130 BoogieDeclarations]: Found specification of procedure ttusb_dec_audio_pes2ts_cb [2023-04-01 13:24:08,796 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~int~X~$Pointer$~X~int~X~$Pointer$~X~int~TO~int [2023-04-01 13:24:08,796 INFO L130 BoogieDeclarations]: Found specification of procedure ttusb_dec_video_pes2ts_cb [2023-04-01 13:24:08,796 INFO L130 BoogieDeclarations]: Found specification of procedure ttusb_dec_set_pids [2023-04-01 13:24:08,796 INFO L130 BoogieDeclarations]: Found specification of procedure ttusb_dec_process_pva [2023-04-01 13:24:08,796 INFO L130 BoogieDeclarations]: Found specification of procedure ttusb_dec_process_filter [2023-04-01 13:24:08,796 INFO L130 BoogieDeclarations]: Found specification of procedure ttusb_dec_process_packet [2023-04-01 13:24:08,796 INFO L130 BoogieDeclarations]: Found specification of procedure swap_bytes [2023-04-01 13:24:08,796 INFO L130 BoogieDeclarations]: Found specification of procedure ttusb_dec_process_urb_frame [2023-04-01 13:24:08,796 INFO L130 BoogieDeclarations]: Found specification of procedure ttusb_dec_process_urb_frame_list [2023-04-01 13:24:08,796 INFO L130 BoogieDeclarations]: Found specification of procedure ttusb_dec_process_urb [2023-04-01 13:24:08,796 INFO L130 BoogieDeclarations]: Found specification of procedure ttusb_dec_setup_urbs [2023-04-01 13:24:08,796 INFO L130 BoogieDeclarations]: Found specification of procedure ttusb_dec_stop_iso_xfer [2023-04-01 13:24:08,796 INFO L130 BoogieDeclarations]: Found specification of procedure ttusb_dec_set_interface [2023-04-01 13:24:08,796 INFO L130 BoogieDeclarations]: Found specification of procedure ttusb_dec_start_iso_xfer [2023-04-01 13:24:08,796 INFO L130 BoogieDeclarations]: Found specification of procedure ttusb_dec_start_ts_feed [2023-04-01 13:24:08,796 INFO L130 BoogieDeclarations]: Found specification of procedure ttusb_dec_start_sec_feed [2023-04-01 13:24:08,797 INFO L130 BoogieDeclarations]: Found specification of procedure ttusb_dec_start_feed [2023-04-01 13:24:08,797 INFO L130 BoogieDeclarations]: Found specification of procedure ttusb_dec_stop_ts_feed [2023-04-01 13:24:08,797 INFO L130 BoogieDeclarations]: Found specification of procedure ttusb_dec_stop_sec_feed [2023-04-01 13:24:08,797 INFO L130 BoogieDeclarations]: Found specification of procedure ttusb_dec_stop_feed [2023-04-01 13:24:08,797 INFO L130 BoogieDeclarations]: Found specification of procedure ttusb_dec_free_iso_urbs [2023-04-01 13:24:08,797 INFO L130 BoogieDeclarations]: Found specification of procedure ttusb_dec_alloc_iso_urbs [2023-04-01 13:24:08,797 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2023-04-01 13:24:08,797 INFO L130 BoogieDeclarations]: Found specification of procedure ttusb_dec_init_tasklet [2023-04-01 13:24:08,797 INFO L130 BoogieDeclarations]: Found specification of procedure ttusb_init_rc [2023-04-01 13:24:08,797 INFO L130 BoogieDeclarations]: Found specification of procedure ttusb_dec_init_v_pes [2023-04-01 13:24:08,797 INFO L130 BoogieDeclarations]: Found specification of procedure ttusb_dec_init_usb [2023-04-01 13:24:08,797 INFO L130 BoogieDeclarations]: Found specification of procedure ttusb_dec_boot_dsp [2023-04-01 13:24:08,797 INFO L130 BoogieDeclarations]: Found specification of procedure ttusb_dec_init_stb [2023-04-01 13:24:08,797 INFO L130 BoogieDeclarations]: Found specification of procedure ttusb_dec_init_dvb [2023-04-01 13:24:08,797 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2023-04-01 13:24:08,797 INFO L130 BoogieDeclarations]: Found specification of procedure ttusb_dec_exit_dvb [2023-04-01 13:24:08,797 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2023-04-01 13:24:08,798 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2023-04-01 13:24:08,798 INFO L130 BoogieDeclarations]: Found specification of procedure ttusb_dec_exit_rc [2023-04-01 13:24:08,798 INFO L130 BoogieDeclarations]: Found specification of procedure ttusb_dec_exit_usb [2023-04-01 13:24:08,798 INFO L130 BoogieDeclarations]: Found specification of procedure ttusb_dec_exit_tasklet [2023-04-01 13:24:08,798 INFO L130 BoogieDeclarations]: Found specification of procedure ttusb_dec_init_filters [2023-04-01 13:24:08,798 INFO L130 BoogieDeclarations]: Found specification of procedure ttusb_dec_exit_filters [2023-04-01 13:24:08,798 INFO L130 BoogieDeclarations]: Found specification of procedure fe_send_command [2023-04-01 13:24:08,798 INFO L130 BoogieDeclarations]: Found specification of procedure ttusb_dec_probe [2023-04-01 13:24:08,798 INFO L130 BoogieDeclarations]: Found specification of procedure ttusb_dec_disconnect [2023-04-01 13:24:08,798 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2023-04-01 13:24:08,798 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_return_value [2023-04-01 13:24:08,798 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_return_value_probe [2023-04-01 13:24:08,798 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize [2023-04-01 13:24:08,798 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_handler_precall [2023-04-01 13:24:08,798 INFO L130 BoogieDeclarations]: Found specification of procedure main [2023-04-01 13:24:08,798 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2023-04-01 13:24:08,798 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_killable_iso_mutex_of_ttusb_dec [2023-04-01 13:24:08,799 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_iso_mutex_of_ttusb_dec [2023-04-01 13:24:08,799 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_trylock_iso_mutex_of_ttusb_dec [2023-04-01 13:24:08,799 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_dec_and_mutex_lock_iso_mutex_of_ttusb_dec [2023-04-01 13:24:08,799 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_is_locked_iso_mutex_of_ttusb_dec [2023-04-01 13:24:08,799 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_interruptible_lock [2023-04-01 13:24:08,799 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_killable_lock [2023-04-01 13:24:08,799 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_trylock_lock [2023-04-01 13:24:08,799 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_dec_and_mutex_lock_lock [2023-04-01 13:24:08,799 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_is_locked_lock [2023-04-01 13:24:08,799 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_interruptible_mutex_of_device [2023-04-01 13:24:08,799 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_killable_mutex_of_device [2023-04-01 13:24:08,799 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_dec_and_mutex_lock_mutex_of_device [2023-04-01 13:24:08,799 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_is_locked_mutex_of_device [2023-04-01 13:24:08,799 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_killable_usb_mutex_of_ttusb_dec [2023-04-01 13:24:08,799 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_usb_mutex_of_ttusb_dec [2023-04-01 13:24:08,799 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_trylock_usb_mutex_of_ttusb_dec [2023-04-01 13:24:08,799 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_dec_and_mutex_lock_usb_mutex_of_ttusb_dec [2023-04-01 13:24:08,800 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_is_locked_usb_mutex_of_ttusb_dec [2023-04-01 13:24:08,800 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_ulong [2023-04-01 13:24:08,800 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uint [2023-04-01 13:24:08,800 INFO L130 BoogieDeclarations]: Found specification of procedure free [2023-04-01 13:24:08,800 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2023-04-01 13:24:08,800 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-04-01 13:24:08,800 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2023-04-01 13:24:08,800 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-04-01 13:24:08,800 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2023-04-01 13:24:08,800 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2023-04-01 13:24:08,800 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2023-04-01 13:24:08,800 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2023-04-01 13:24:09,483 INFO L236 CfgBuilder]: Building ICFG [2023-04-01 13:24:09,487 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-04-01 13:24:15,394 INFO L277 CfgBuilder]: Performing block encoding [2023-04-01 13:24:16,385 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-04-01 13:24:16,386 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-04-01 13:24:16,390 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.04 01:24:16 BoogieIcfgContainer [2023-04-01 13:24:16,391 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-04-01 13:24:16,393 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-04-01 13:24:16,393 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-04-01 13:24:16,395 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-04-01 13:24:16,395 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 01.04 01:24:06" (1/3) ... [2023-04-01 13:24:16,396 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@16bedf7c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.04 01:24:16, skipping insertion in model container [2023-04-01 13:24:16,396 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 01:24:08" (2/3) ... [2023-04-01 13:24:16,396 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@16bedf7c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.04 01:24:16, skipping insertion in model container [2023-04-01 13:24:16,396 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.04 01:24:16" (3/3) ... [2023-04-01 13:24:16,397 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-3.8-rc1-32_7a-drivers--media--usb--ttusb-dec--ttusb_dec.ko-ldv_main0.cil.out.i [2023-04-01 13:24:16,414 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-04-01 13:24:16,414 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-04-01 13:24:16,490 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-04-01 13:24:16,496 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;@340fd801, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-04-01 13:24:16,496 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-04-01 13:24:16,505 INFO L276 IsEmpty]: Start isEmpty. Operand has 1434 states, 842 states have (on average 1.2767220902612826) internal successors, (1075), 872 states have internal predecessors, (1075), 408 states have call successors, (408), 155 states have call predecessors, (408), 155 states have return successors, (408), 400 states have call predecessors, (408), 408 states have call successors, (408) [2023-04-01 13:24:16,511 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2023-04-01 13:24:16,511 INFO L187 NwaCegarLoop]: Found error trace [2023-04-01 13:24:16,511 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-01 13:24:16,512 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-01 13:24:16,516 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-01 13:24:16,517 INFO L85 PathProgramCache]: Analyzing trace with hash 1588755671, now seen corresponding path program 1 times [2023-04-01 13:24:16,524 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-01 13:24:16,524 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [400423053] [2023-04-01 13:24:16,524 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-01 13:24:16,525 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-01 13:24:16,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 13:24:16,962 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-04-01 13:24:16,962 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-01 13:24:16,963 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [400423053] [2023-04-01 13:24:16,963 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [400423053] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-01 13:24:16,963 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-01 13:24:16,963 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-04-01 13:24:16,965 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1535711604] [2023-04-01 13:24:16,965 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-01 13:24:16,968 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-04-01 13:24:16,968 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-01 13:24:16,991 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-04-01 13:24:16,991 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-04-01 13:24:16,995 INFO L87 Difference]: Start difference. First operand has 1434 states, 842 states have (on average 1.2767220902612826) internal successors, (1075), 872 states have internal predecessors, (1075), 408 states have call successors, (408), 155 states have call predecessors, (408), 155 states have return successors, (408), 400 states have call predecessors, (408), 408 states have call successors, (408) Second operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 3 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2023-04-01 13:24:18,845 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-01 13:24:18,846 INFO L93 Difference]: Finished difference Result 3654 states and 4994 transitions. [2023-04-01 13:24:18,849 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-04-01 13:24:18,850 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 3 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 14 [2023-04-01 13:24:18,850 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-01 13:24:18,887 INFO L225 Difference]: With dead ends: 3654 [2023-04-01 13:24:18,887 INFO L226 Difference]: Without dead ends: 2408 [2023-04-01 13:24:18,902 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-04-01 13:24:18,905 INFO L413 NwaCegarLoop]: 1544 mSDtfsCounter, 1594 mSDsluCounter, 1463 mSDsCounter, 0 mSdLazyCounter, 312 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1594 SdHoareTripleChecker+Valid, 3007 SdHoareTripleChecker+Invalid, 316 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 312 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2023-04-01 13:24:18,906 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1594 Valid, 3007 Invalid, 316 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 312 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2023-04-01 13:24:18,928 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2408 states. [2023-04-01 13:24:19,203 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2408 to 2404. [2023-04-01 13:24:19,209 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2404 states, 1411 states have (on average 1.26293408929837) internal successors, (1782), 1454 states have internal predecessors, (1782), 711 states have call successors, (711), 288 states have call predecessors, (711), 281 states have return successors, (726), 680 states have call predecessors, (726), 700 states have call successors, (726) [2023-04-01 13:24:19,228 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2404 states to 2404 states and 3219 transitions. [2023-04-01 13:24:19,231 INFO L78 Accepts]: Start accepts. Automaton has 2404 states and 3219 transitions. Word has length 14 [2023-04-01 13:24:19,232 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-01 13:24:19,232 INFO L495 AbstractCegarLoop]: Abstraction has 2404 states and 3219 transitions. [2023-04-01 13:24:19,233 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 3 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2023-04-01 13:24:19,233 INFO L276 IsEmpty]: Start isEmpty. Operand 2404 states and 3219 transitions. [2023-04-01 13:24:19,233 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2023-04-01 13:24:19,233 INFO L187 NwaCegarLoop]: Found error trace [2023-04-01 13:24:19,234 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-01 13:24:19,234 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-04-01 13:24:19,234 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-01 13:24:19,235 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-01 13:24:19,235 INFO L85 PathProgramCache]: Analyzing trace with hash 2005965968, now seen corresponding path program 1 times [2023-04-01 13:24:19,235 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-01 13:24:19,235 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1204687325] [2023-04-01 13:24:19,235 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-01 13:24:19,235 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-01 13:24:19,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 13:24:19,401 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-04-01 13:24:19,402 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-01 13:24:19,402 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1204687325] [2023-04-01 13:24:19,402 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1204687325] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-01 13:24:19,403 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-01 13:24:19,403 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-04-01 13:24:19,403 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1337359304] [2023-04-01 13:24:19,403 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-01 13:24:19,404 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-04-01 13:24:19,404 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-01 13:24:19,405 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-04-01 13:24:19,405 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-04-01 13:24:19,405 INFO L87 Difference]: Start difference. First operand 2404 states and 3219 transitions. Second operand has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 3 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2023-04-01 13:24:20,131 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-01 13:24:20,131 INFO L93 Difference]: Finished difference Result 2406 states and 3220 transitions. [2023-04-01 13:24:20,133 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-04-01 13:24:20,133 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 3 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 15 [2023-04-01 13:24:20,133 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-01 13:24:20,146 INFO L225 Difference]: With dead ends: 2406 [2023-04-01 13:24:20,146 INFO L226 Difference]: Without dead ends: 2403 [2023-04-01 13:24:20,148 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-04-01 13:24:20,149 INFO L413 NwaCegarLoop]: 1490 mSDtfsCounter, 1628 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 151 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1628 SdHoareTripleChecker+Valid, 1495 SdHoareTripleChecker+Invalid, 151 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 151 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-04-01 13:24:20,149 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1628 Valid, 1495 Invalid, 151 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 151 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-04-01 13:24:20,152 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2403 states. [2023-04-01 13:24:20,257 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2403 to 2403. [2023-04-01 13:24:20,262 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2403 states, 1411 states have (on average 1.2622253720765415) internal successors, (1781), 1453 states have internal predecessors, (1781), 710 states have call successors, (710), 288 states have call predecessors, (710), 281 states have return successors, (726), 680 states have call predecessors, (726), 700 states have call successors, (726) [2023-04-01 13:24:20,278 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2403 states to 2403 states and 3217 transitions. [2023-04-01 13:24:20,278 INFO L78 Accepts]: Start accepts. Automaton has 2403 states and 3217 transitions. Word has length 15 [2023-04-01 13:24:20,278 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-01 13:24:20,279 INFO L495 AbstractCegarLoop]: Abstraction has 2403 states and 3217 transitions. [2023-04-01 13:24:20,279 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 3 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2023-04-01 13:24:20,279 INFO L276 IsEmpty]: Start isEmpty. Operand 2403 states and 3217 transitions. [2023-04-01 13:24:20,280 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2023-04-01 13:24:20,280 INFO L187 NwaCegarLoop]: Found error trace [2023-04-01 13:24:20,280 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-01 13:24:20,280 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-04-01 13:24:20,280 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-01 13:24:20,280 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-01 13:24:20,281 INFO L85 PathProgramCache]: Analyzing trace with hash 2054588154, now seen corresponding path program 1 times [2023-04-01 13:24:20,281 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-01 13:24:20,281 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1586670726] [2023-04-01 13:24:20,281 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-01 13:24:20,281 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-01 13:24:20,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 13:24:20,425 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-04-01 13:24:20,425 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-01 13:24:20,425 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1586670726] [2023-04-01 13:24:20,425 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1586670726] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-01 13:24:20,426 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-01 13:24:20,426 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-04-01 13:24:20,426 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1267005554] [2023-04-01 13:24:20,426 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-01 13:24:20,427 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-04-01 13:24:20,428 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-01 13:24:20,428 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-04-01 13:24:20,428 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-04-01 13:24:20,429 INFO L87 Difference]: Start difference. First operand 2403 states and 3217 transitions. Second operand has 3 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 3 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2023-04-01 13:24:21,336 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-01 13:24:21,336 INFO L93 Difference]: Finished difference Result 2405 states and 3218 transitions. [2023-04-01 13:24:21,338 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-04-01 13:24:21,339 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 3 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 16 [2023-04-01 13:24:21,339 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-01 13:24:21,351 INFO L225 Difference]: With dead ends: 2405 [2023-04-01 13:24:21,351 INFO L226 Difference]: Without dead ends: 2402 [2023-04-01 13:24:21,353 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-04-01 13:24:21,353 INFO L413 NwaCegarLoop]: 1488 mSDtfsCounter, 1625 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 151 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1625 SdHoareTripleChecker+Valid, 1493 SdHoareTripleChecker+Invalid, 151 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 151 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-04-01 13:24:21,354 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1625 Valid, 1493 Invalid, 151 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 151 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-04-01 13:24:21,357 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2402 states. [2023-04-01 13:24:21,464 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2402 to 2402. [2023-04-01 13:24:21,468 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2402 states, 1411 states have (on average 1.261516654854713) internal successors, (1780), 1452 states have internal predecessors, (1780), 709 states have call successors, (709), 288 states have call predecessors, (709), 281 states have return successors, (726), 680 states have call predecessors, (726), 700 states have call successors, (726) [2023-04-01 13:24:21,481 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2402 states to 2402 states and 3215 transitions. [2023-04-01 13:24:21,482 INFO L78 Accepts]: Start accepts. Automaton has 2402 states and 3215 transitions. Word has length 16 [2023-04-01 13:24:21,482 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-01 13:24:21,483 INFO L495 AbstractCegarLoop]: Abstraction has 2402 states and 3215 transitions. [2023-04-01 13:24:21,483 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 3 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2023-04-01 13:24:21,483 INFO L276 IsEmpty]: Start isEmpty. Operand 2402 states and 3215 transitions. [2023-04-01 13:24:21,483 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2023-04-01 13:24:21,483 INFO L187 NwaCegarLoop]: Found error trace [2023-04-01 13:24:21,483 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-01 13:24:21,484 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-04-01 13:24:21,484 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-01 13:24:21,484 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-01 13:24:21,484 INFO L85 PathProgramCache]: Analyzing trace with hash -733086509, now seen corresponding path program 1 times [2023-04-01 13:24:21,484 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-01 13:24:21,484 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [570351639] [2023-04-01 13:24:21,485 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-01 13:24:21,485 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-01 13:24:21,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 13:24:21,603 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-04-01 13:24:21,603 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-01 13:24:21,604 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [570351639] [2023-04-01 13:24:21,604 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [570351639] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-01 13:24:21,604 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-01 13:24:21,604 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-04-01 13:24:21,604 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [658526174] [2023-04-01 13:24:21,604 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-01 13:24:21,605 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-04-01 13:24:21,605 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-01 13:24:21,605 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-04-01 13:24:21,605 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-04-01 13:24:21,606 INFO L87 Difference]: Start difference. First operand 2402 states and 3215 transitions. Second operand has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 3 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2023-04-01 13:24:23,257 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-01 13:24:23,257 INFO L93 Difference]: Finished difference Result 4651 states and 6365 transitions. [2023-04-01 13:24:23,259 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-04-01 13:24:23,259 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 3 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 17 [2023-04-01 13:24:23,259 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-01 13:24:23,283 INFO L225 Difference]: With dead ends: 4651 [2023-04-01 13:24:23,283 INFO L226 Difference]: Without dead ends: 4642 [2023-04-01 13:24:23,286 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-04-01 13:24:23,287 INFO L413 NwaCegarLoop]: 1551 mSDtfsCounter, 1567 mSDsluCounter, 1466 mSDsCounter, 0 mSdLazyCounter, 312 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1567 SdHoareTripleChecker+Valid, 3017 SdHoareTripleChecker+Invalid, 315 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 312 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2023-04-01 13:24:23,288 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1567 Valid, 3017 Invalid, 315 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 312 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2023-04-01 13:24:23,293 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4642 states. [2023-04-01 13:24:23,525 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4642 to 4637. [2023-04-01 13:24:23,534 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4637 states, 2733 states have (on average 1.2608854738382729) internal successors, (3446), 2809 states have internal predecessors, (3446), 1356 states have call successors, (1356), 562 states have call predecessors, (1356), 547 states have return successors, (1546), 1302 states have call predecessors, (1546), 1346 states have call successors, (1546) [2023-04-01 13:24:23,553 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4637 states to 4637 states and 6348 transitions. [2023-04-01 13:24:23,554 INFO L78 Accepts]: Start accepts. Automaton has 4637 states and 6348 transitions. Word has length 17 [2023-04-01 13:24:23,554 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-01 13:24:23,554 INFO L495 AbstractCegarLoop]: Abstraction has 4637 states and 6348 transitions. [2023-04-01 13:24:23,554 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 3 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2023-04-01 13:24:23,554 INFO L276 IsEmpty]: Start isEmpty. Operand 4637 states and 6348 transitions. [2023-04-01 13:24:23,562 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2023-04-01 13:24:23,562 INFO L187 NwaCegarLoop]: Found error trace [2023-04-01 13:24:23,562 INFO L195 NwaCegarLoop]: trace histogram [5, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-01 13:24:23,562 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-04-01 13:24:23,563 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-01 13:24:23,563 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-01 13:24:23,563 INFO L85 PathProgramCache]: Analyzing trace with hash 534228533, now seen corresponding path program 1 times [2023-04-01 13:24:23,563 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-01 13:24:23,563 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1360787312] [2023-04-01 13:24:23,564 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-01 13:24:23,564 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-01 13:24:23,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 13:24:23,906 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2023-04-01 13:24:23,906 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-01 13:24:23,906 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1360787312] [2023-04-01 13:24:23,906 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1360787312] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-01 13:24:23,907 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-01 13:24:23,907 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-04-01 13:24:23,907 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [593583230] [2023-04-01 13:24:23,907 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-01 13:24:23,908 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-04-01 13:24:23,908 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-01 13:24:23,908 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-04-01 13:24:23,908 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-04-01 13:24:23,909 INFO L87 Difference]: Start difference. First operand 4637 states and 6348 transitions. Second operand has 4 states, 4 states have (on average 19.0) internal successors, (76), 4 states have internal predecessors, (76), 4 states have call successors, (34), 3 states have call predecessors, (34), 3 states have return successors, (26), 4 states have call predecessors, (26), 4 states have call successors, (26) [2023-04-01 13:24:26,196 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-01 13:24:26,196 INFO L93 Difference]: Finished difference Result 8946 states and 12308 transitions. [2023-04-01 13:24:26,197 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-04-01 13:24:26,197 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 19.0) internal successors, (76), 4 states have internal predecessors, (76), 4 states have call successors, (34), 3 states have call predecessors, (34), 3 states have return successors, (26), 4 states have call predecessors, (26), 4 states have call successors, (26) Word has length 155 [2023-04-01 13:24:26,198 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-01 13:24:26,230 INFO L225 Difference]: With dead ends: 8946 [2023-04-01 13:24:26,230 INFO L226 Difference]: Without dead ends: 4317 [2023-04-01 13:24:26,296 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-04-01 13:24:26,297 INFO L413 NwaCegarLoop]: 1395 mSDtfsCounter, 1512 mSDsluCounter, 717 mSDsCounter, 0 mSdLazyCounter, 959 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1512 SdHoareTripleChecker+Valid, 2112 SdHoareTripleChecker+Invalid, 962 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 959 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2023-04-01 13:24:26,297 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1512 Valid, 2112 Invalid, 962 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 959 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2023-04-01 13:24:26,301 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4317 states. [2023-04-01 13:24:26,574 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4317 to 4317. [2023-04-01 13:24:26,594 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4317 states, 2549 states have (on average 1.2593173793644568) internal successors, (3210), 2621 states have internal predecessors, (3210), 1268 states have call successors, (1268), 514 states have call predecessors, (1268), 499 states have return successors, (1450), 1214 states have call predecessors, (1450), 1258 states have call successors, (1450) [2023-04-01 13:24:26,614 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4317 states to 4317 states and 5928 transitions. [2023-04-01 13:24:26,616 INFO L78 Accepts]: Start accepts. Automaton has 4317 states and 5928 transitions. Word has length 155 [2023-04-01 13:24:26,618 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-01 13:24:26,618 INFO L495 AbstractCegarLoop]: Abstraction has 4317 states and 5928 transitions. [2023-04-01 13:24:26,619 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 19.0) internal successors, (76), 4 states have internal predecessors, (76), 4 states have call successors, (34), 3 states have call predecessors, (34), 3 states have return successors, (26), 4 states have call predecessors, (26), 4 states have call successors, (26) [2023-04-01 13:24:26,619 INFO L276 IsEmpty]: Start isEmpty. Operand 4317 states and 5928 transitions. [2023-04-01 13:24:26,629 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2023-04-01 13:24:26,629 INFO L187 NwaCegarLoop]: Found error trace [2023-04-01 13:24:26,629 INFO L195 NwaCegarLoop]: trace histogram [4, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-01 13:24:26,629 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-04-01 13:24:26,629 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-01 13:24:26,630 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-01 13:24:26,630 INFO L85 PathProgramCache]: Analyzing trace with hash 673050570, now seen corresponding path program 1 times [2023-04-01 13:24:26,630 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-01 13:24:26,630 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1154604855] [2023-04-01 13:24:26,630 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-01 13:24:26,630 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-01 13:24:26,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 13:24:26,940 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2023-04-01 13:24:26,940 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-01 13:24:26,940 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1154604855] [2023-04-01 13:24:26,940 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1154604855] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-01 13:24:26,940 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-01 13:24:26,940 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-04-01 13:24:26,941 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [710900438] [2023-04-01 13:24:26,941 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-01 13:24:26,942 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-04-01 13:24:26,942 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-01 13:24:26,943 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-04-01 13:24:26,943 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-04-01 13:24:26,943 INFO L87 Difference]: Start difference. First operand 4317 states and 5928 transitions. Second operand has 3 states, 3 states have (on average 34.0) internal successors, (102), 3 states have internal predecessors, (102), 3 states have call successors, (42), 2 states have call predecessors, (42), 1 states have return successors, (32), 3 states have call predecessors, (32), 3 states have call successors, (32) [2023-04-01 13:24:27,964 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-01 13:24:27,965 INFO L93 Difference]: Finished difference Result 8650 states and 11891 transitions. [2023-04-01 13:24:27,968 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-04-01 13:24:27,968 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 34.0) internal successors, (102), 3 states have internal predecessors, (102), 3 states have call successors, (42), 2 states have call predecessors, (42), 1 states have return successors, (32), 3 states have call predecessors, (32), 3 states have call successors, (32) Word has length 182 [2023-04-01 13:24:27,968 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-01 13:24:27,996 INFO L225 Difference]: With dead ends: 8650 [2023-04-01 13:24:27,997 INFO L226 Difference]: Without dead ends: 4341 [2023-04-01 13:24:28,015 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-04-01 13:24:28,017 INFO L413 NwaCegarLoop]: 1394 mSDtfsCounter, 7 mSDsluCounter, 1384 mSDsCounter, 0 mSdLazyCounter, 282 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 2778 SdHoareTripleChecker+Invalid, 286 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 282 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-04-01 13:24:28,018 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 2778 Invalid, 286 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 282 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-04-01 13:24:28,024 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4341 states. [2023-04-01 13:24:28,243 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4341 to 4341. [2023-04-01 13:24:28,251 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4341 states, 2573 states have (on average 1.2611737271667314) internal successors, (3245), 2645 states have internal predecessors, (3245), 1268 states have call successors, (1268), 514 states have call predecessors, (1268), 499 states have return successors, (1450), 1214 states have call predecessors, (1450), 1258 states have call successors, (1450) [2023-04-01 13:24:28,270 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4341 states to 4341 states and 5963 transitions. [2023-04-01 13:24:28,272 INFO L78 Accepts]: Start accepts. Automaton has 4341 states and 5963 transitions. Word has length 182 [2023-04-01 13:24:28,272 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-01 13:24:28,272 INFO L495 AbstractCegarLoop]: Abstraction has 4341 states and 5963 transitions. [2023-04-01 13:24:28,272 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 34.0) internal successors, (102), 3 states have internal predecessors, (102), 3 states have call successors, (42), 2 states have call predecessors, (42), 1 states have return successors, (32), 3 states have call predecessors, (32), 3 states have call successors, (32) [2023-04-01 13:24:28,272 INFO L276 IsEmpty]: Start isEmpty. Operand 4341 states and 5963 transitions. [2023-04-01 13:24:28,275 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 176 [2023-04-01 13:24:28,275 INFO L187 NwaCegarLoop]: Found error trace [2023-04-01 13:24:28,275 INFO L195 NwaCegarLoop]: trace histogram [5, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-01 13:24:28,275 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-04-01 13:24:28,276 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-01 13:24:28,276 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-01 13:24:28,276 INFO L85 PathProgramCache]: Analyzing trace with hash 35908683, now seen corresponding path program 1 times [2023-04-01 13:24:28,276 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-01 13:24:28,276 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1007242791] [2023-04-01 13:24:28,276 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-01 13:24:28,277 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-01 13:24:28,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 13:24:28,974 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2023-04-01 13:24:28,975 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-01 13:24:28,975 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1007242791] [2023-04-01 13:24:28,975 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1007242791] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-01 13:24:28,975 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-01 13:24:28,975 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-04-01 13:24:28,975 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [677060235] [2023-04-01 13:24:28,976 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-01 13:24:28,977 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-04-01 13:24:28,977 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-01 13:24:28,977 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-04-01 13:24:28,977 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-04-01 13:24:28,978 INFO L87 Difference]: Start difference. First operand 4341 states and 5963 transitions. Second operand has 7 states, 7 states have (on average 13.0) internal successors, (91), 5 states have internal predecessors, (91), 2 states have call successors, (38), 2 states have call predecessors, (38), 3 states have return successors, (30), 4 states have call predecessors, (30), 2 states have call successors, (30) [2023-04-01 13:24:30,954 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-01 13:24:30,955 INFO L93 Difference]: Finished difference Result 8710 states and 11966 transitions. [2023-04-01 13:24:30,957 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-04-01 13:24:30,957 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 13.0) internal successors, (91), 5 states have internal predecessors, (91), 2 states have call successors, (38), 2 states have call predecessors, (38), 3 states have return successors, (30), 4 states have call predecessors, (30), 2 states have call successors, (30) Word has length 175 [2023-04-01 13:24:30,959 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-01 13:24:30,982 INFO L225 Difference]: With dead ends: 8710 [2023-04-01 13:24:30,982 INFO L226 Difference]: Without dead ends: 4377 [2023-04-01 13:24:31,000 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-04-01 13:24:31,003 INFO L413 NwaCegarLoop]: 1397 mSDtfsCounter, 2 mSDsluCounter, 6977 mSDsCounter, 0 mSdLazyCounter, 844 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 8374 SdHoareTripleChecker+Invalid, 846 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 844 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2023-04-01 13:24:31,003 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 8374 Invalid, 846 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 844 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2023-04-01 13:24:31,009 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4377 states. [2023-04-01 13:24:31,266 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4377 to 4377. [2023-04-01 13:24:31,272 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4377 states, 2597 states have (on average 1.2587601078167117) internal successors, (3269), 2673 states have internal predecessors, (3269), 1268 states have call successors, (1268), 514 states have call predecessors, (1268), 511 states have return successors, (1462), 1222 states have call predecessors, (1462), 1258 states have call successors, (1462) [2023-04-01 13:24:31,289 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4377 states to 4377 states and 5999 transitions. [2023-04-01 13:24:31,291 INFO L78 Accepts]: Start accepts. Automaton has 4377 states and 5999 transitions. Word has length 175 [2023-04-01 13:24:31,293 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-01 13:24:31,293 INFO L495 AbstractCegarLoop]: Abstraction has 4377 states and 5999 transitions. [2023-04-01 13:24:31,293 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 13.0) internal successors, (91), 5 states have internal predecessors, (91), 2 states have call successors, (38), 2 states have call predecessors, (38), 3 states have return successors, (30), 4 states have call predecessors, (30), 2 states have call successors, (30) [2023-04-01 13:24:31,294 INFO L276 IsEmpty]: Start isEmpty. Operand 4377 states and 5999 transitions. [2023-04-01 13:24:31,297 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 187 [2023-04-01 13:24:31,297 INFO L187 NwaCegarLoop]: Found error trace [2023-04-01 13:24:31,298 INFO L195 NwaCegarLoop]: trace histogram [5, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-01 13:24:31,298 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-04-01 13:24:31,298 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-01 13:24:31,298 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-01 13:24:31,298 INFO L85 PathProgramCache]: Analyzing trace with hash -2020537037, now seen corresponding path program 1 times [2023-04-01 13:24:31,298 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-01 13:24:31,299 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1800780406] [2023-04-01 13:24:31,299 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-01 13:24:31,299 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-01 13:24:31,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 13:24:31,605 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2023-04-01 13:24:31,605 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-01 13:24:31,605 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1800780406] [2023-04-01 13:24:31,605 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1800780406] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-01 13:24:31,606 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-01 13:24:31,606 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-04-01 13:24:31,606 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [497618669] [2023-04-01 13:24:31,606 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-01 13:24:31,606 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-04-01 13:24:31,606 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-01 13:24:31,607 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-04-01 13:24:31,607 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-04-01 13:24:31,608 INFO L87 Difference]: Start difference. First operand 4377 states and 5999 transitions. Second operand has 3 states, 3 states have (on average 32.666666666666664) internal successors, (98), 3 states have internal predecessors, (98), 2 states have call successors, (40), 2 states have call predecessors, (40), 2 states have return successors, (32), 2 states have call predecessors, (32), 2 states have call successors, (32) [2023-04-01 13:24:32,703 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-01 13:24:32,703 INFO L93 Difference]: Finished difference Result 8778 states and 12058 transitions. [2023-04-01 13:24:32,706 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-04-01 13:24:32,706 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 32.666666666666664) internal successors, (98), 3 states have internal predecessors, (98), 2 states have call successors, (40), 2 states have call predecessors, (40), 2 states have return successors, (32), 2 states have call predecessors, (32), 2 states have call successors, (32) Word has length 186 [2023-04-01 13:24:32,706 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-01 13:24:32,800 INFO L225 Difference]: With dead ends: 8778 [2023-04-01 13:24:32,800 INFO L226 Difference]: Without dead ends: 4409 [2023-04-01 13:24:32,817 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-04-01 13:24:32,820 INFO L413 NwaCegarLoop]: 1398 mSDtfsCounter, 5 mSDsluCounter, 1394 mSDsCounter, 0 mSdLazyCounter, 280 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 2792 SdHoareTripleChecker+Invalid, 280 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 280 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2023-04-01 13:24:32,820 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 2792 Invalid, 280 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 280 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2023-04-01 13:24:32,825 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4409 states. [2023-04-01 13:24:33,073 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4409 to 4381. [2023-04-01 13:24:33,080 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4381 states, 2601 states have (on average 1.2583621683967705) internal successors, (3273), 2677 states have internal predecessors, (3273), 1268 states have call successors, (1268), 514 states have call predecessors, (1268), 511 states have return successors, (1462), 1222 states have call predecessors, (1462), 1258 states have call successors, (1462) [2023-04-01 13:24:33,097 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4381 states to 4381 states and 6003 transitions. [2023-04-01 13:24:33,099 INFO L78 Accepts]: Start accepts. Automaton has 4381 states and 6003 transitions. Word has length 186 [2023-04-01 13:24:33,100 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-01 13:24:33,100 INFO L495 AbstractCegarLoop]: Abstraction has 4381 states and 6003 transitions. [2023-04-01 13:24:33,100 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 32.666666666666664) internal successors, (98), 3 states have internal predecessors, (98), 2 states have call successors, (40), 2 states have call predecessors, (40), 2 states have return successors, (32), 2 states have call predecessors, (32), 2 states have call successors, (32) [2023-04-01 13:24:33,100 INFO L276 IsEmpty]: Start isEmpty. Operand 4381 states and 6003 transitions. [2023-04-01 13:24:33,103 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 199 [2023-04-01 13:24:33,103 INFO L187 NwaCegarLoop]: Found error trace [2023-04-01 13:24:33,104 INFO L195 NwaCegarLoop]: trace histogram [5, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-01 13:24:33,104 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-04-01 13:24:33,104 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-01 13:24:33,104 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-01 13:24:33,104 INFO L85 PathProgramCache]: Analyzing trace with hash -350511499, now seen corresponding path program 1 times [2023-04-01 13:24:33,104 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-01 13:24:33,105 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [422537301] [2023-04-01 13:24:33,105 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-01 13:24:33,105 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-01 13:24:33,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 13:24:33,476 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2023-04-01 13:24:33,476 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-01 13:24:33,476 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [422537301] [2023-04-01 13:24:33,477 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [422537301] provided 0 perfect and 1 imperfect interpolant sequences [2023-04-01 13:24:33,477 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [87640224] [2023-04-01 13:24:33,477 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-01 13:24:33,477 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-01 13:24:33,477 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-01 13:24:33,485 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-04-01 13:24:33,512 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-04-01 13:24:34,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 13:24:34,334 INFO L262 TraceCheckSpWp]: Trace formula consists of 2617 conjuncts, 2 conjunts are in the unsatisfiable core [2023-04-01 13:24:34,348 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-04-01 13:24:34,395 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2023-04-01 13:24:34,395 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-04-01 13:24:34,395 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [87640224] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-01 13:24:34,395 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-04-01 13:24:34,395 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 5 [2023-04-01 13:24:34,395 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [331398928] [2023-04-01 13:24:34,396 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-01 13:24:34,396 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-04-01 13:24:34,396 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-01 13:24:34,397 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-04-01 13:24:34,397 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-04-01 13:24:34,397 INFO L87 Difference]: Start difference. First operand 4381 states and 6003 transitions. Second operand has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 3 states have internal predecessors, (110), 2 states have call successors, (44), 2 states have call predecessors, (44), 2 states have return successors, (36), 2 states have call predecessors, (36), 2 states have call successors, (36) [2023-04-01 13:24:35,398 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-01 13:24:35,399 INFO L93 Difference]: Finished difference Result 8762 states and 12096 transitions. [2023-04-01 13:24:35,401 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-04-01 13:24:35,401 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 3 states have internal predecessors, (110), 2 states have call successors, (44), 2 states have call predecessors, (44), 2 states have return successors, (36), 2 states have call predecessors, (36), 2 states have call successors, (36) Word has length 198 [2023-04-01 13:24:35,402 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-01 13:24:35,431 INFO L225 Difference]: With dead ends: 8762 [2023-04-01 13:24:35,432 INFO L226 Difference]: Without dead ends: 4389 [2023-04-01 13:24:35,452 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 201 GetRequests, 198 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-04-01 13:24:35,454 INFO L413 NwaCegarLoop]: 1397 mSDtfsCounter, 2 mSDsluCounter, 1395 mSDsCounter, 0 mSdLazyCounter, 277 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 2792 SdHoareTripleChecker+Invalid, 277 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 277 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-04-01 13:24:35,455 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 2792 Invalid, 277 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 277 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-04-01 13:24:35,460 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4389 states. [2023-04-01 13:24:35,651 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4389 to 4385. [2023-04-01 13:24:35,657 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4385 states, 2605 states have (on average 1.2579654510556622) internal successors, (3277), 2681 states have internal predecessors, (3277), 1268 states have call successors, (1268), 514 states have call predecessors, (1268), 511 states have return successors, (1462), 1222 states have call predecessors, (1462), 1258 states have call successors, (1462) [2023-04-01 13:24:35,672 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4385 states to 4385 states and 6007 transitions. [2023-04-01 13:24:35,675 INFO L78 Accepts]: Start accepts. Automaton has 4385 states and 6007 transitions. Word has length 198 [2023-04-01 13:24:35,676 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-01 13:24:35,677 INFO L495 AbstractCegarLoop]: Abstraction has 4385 states and 6007 transitions. [2023-04-01 13:24:35,677 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 3 states have internal predecessors, (110), 2 states have call successors, (44), 2 states have call predecessors, (44), 2 states have return successors, (36), 2 states have call predecessors, (36), 2 states have call successors, (36) [2023-04-01 13:24:35,677 INFO L276 IsEmpty]: Start isEmpty. Operand 4385 states and 6007 transitions. [2023-04-01 13:24:35,680 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 201 [2023-04-01 13:24:35,680 INFO L187 NwaCegarLoop]: Found error trace [2023-04-01 13:24:35,680 INFO L195 NwaCegarLoop]: trace histogram [5, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-01 13:24:35,695 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-04-01 13:24:35,892 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-01 13:24:35,893 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-01 13:24:35,894 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-01 13:24:35,894 INFO L85 PathProgramCache]: Analyzing trace with hash 714326886, now seen corresponding path program 1 times [2023-04-01 13:24:35,894 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-01 13:24:35,894 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1758665730] [2023-04-01 13:24:35,894 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-01 13:24:35,894 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-01 13:24:36,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 13:24:36,246 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 43 trivial. 0 not checked. [2023-04-01 13:24:36,246 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-01 13:24:36,247 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1758665730] [2023-04-01 13:24:36,247 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1758665730] provided 0 perfect and 1 imperfect interpolant sequences [2023-04-01 13:24:36,247 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1218774506] [2023-04-01 13:24:36,247 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-01 13:24:36,247 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-01 13:24:36,247 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-01 13:24:36,248 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) [2023-04-01 13:24:36,251 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-04-01 13:24:37,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 13:24:37,226 INFO L262 TraceCheckSpWp]: Trace formula consists of 2717 conjuncts, 2 conjunts are in the unsatisfiable core [2023-04-01 13:24:37,234 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-04-01 13:24:37,259 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2023-04-01 13:24:37,259 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-04-01 13:24:37,259 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1218774506] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-01 13:24:37,259 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-04-01 13:24:37,259 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 5 [2023-04-01 13:24:37,259 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2036598914] [2023-04-01 13:24:37,259 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-01 13:24:37,260 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-04-01 13:24:37,260 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-01 13:24:37,260 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-04-01 13:24:37,261 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-04-01 13:24:37,261 INFO L87 Difference]: Start difference. First operand 4385 states and 6007 transitions. Second operand has 3 states, 3 states have (on average 37.333333333333336) internal successors, (112), 3 states have internal predecessors, (112), 2 states have call successors, (44), 2 states have call predecessors, (44), 2 states have return successors, (36), 2 states have call predecessors, (36), 2 states have call successors, (36) [2023-04-01 13:24:38,273 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-01 13:24:38,274 INFO L93 Difference]: Finished difference Result 8766 states and 12096 transitions. [2023-04-01 13:24:38,276 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-04-01 13:24:38,276 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 37.333333333333336) internal successors, (112), 3 states have internal predecessors, (112), 2 states have call successors, (44), 2 states have call predecessors, (44), 2 states have return successors, (36), 2 states have call predecessors, (36), 2 states have call successors, (36) Word has length 200 [2023-04-01 13:24:38,277 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-01 13:24:38,309 INFO L225 Difference]: With dead ends: 8766 [2023-04-01 13:24:38,309 INFO L226 Difference]: Without dead ends: 4389 [2023-04-01 13:24:38,327 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 203 GetRequests, 200 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-04-01 13:24:38,328 INFO L413 NwaCegarLoop]: 1398 mSDtfsCounter, 0 mSDsluCounter, 1396 mSDsCounter, 0 mSdLazyCounter, 275 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 2794 SdHoareTripleChecker+Invalid, 275 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 275 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-04-01 13:24:38,328 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 2794 Invalid, 275 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 275 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-04-01 13:24:38,333 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4389 states. [2023-04-01 13:24:38,527 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4389 to 4389. [2023-04-01 13:24:38,533 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4389 states, 2609 states have (on average 1.25756995017248) internal successors, (3281), 2685 states have internal predecessors, (3281), 1268 states have call successors, (1268), 514 states have call predecessors, (1268), 511 states have return successors, (1462), 1222 states have call predecessors, (1462), 1258 states have call successors, (1462) [2023-04-01 13:24:38,548 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4389 states to 4389 states and 6011 transitions. [2023-04-01 13:24:38,550 INFO L78 Accepts]: Start accepts. Automaton has 4389 states and 6011 transitions. Word has length 200 [2023-04-01 13:24:38,550 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-01 13:24:38,550 INFO L495 AbstractCegarLoop]: Abstraction has 4389 states and 6011 transitions. [2023-04-01 13:24:38,550 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 37.333333333333336) internal successors, (112), 3 states have internal predecessors, (112), 2 states have call successors, (44), 2 states have call predecessors, (44), 2 states have return successors, (36), 2 states have call predecessors, (36), 2 states have call successors, (36) [2023-04-01 13:24:38,551 INFO L276 IsEmpty]: Start isEmpty. Operand 4389 states and 6011 transitions. [2023-04-01 13:24:38,554 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 202 [2023-04-01 13:24:38,554 INFO L187 NwaCegarLoop]: Found error trace [2023-04-01 13:24:38,554 INFO L195 NwaCegarLoop]: trace histogram [5, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-01 13:24:38,566 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-04-01 13:24:38,766 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,SelfDestructingSolverStorable9 [2023-04-01 13:24:38,767 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-01 13:24:38,767 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-01 13:24:38,767 INFO L85 PathProgramCache]: Analyzing trace with hash -58562024, now seen corresponding path program 1 times [2023-04-01 13:24:38,767 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-01 13:24:38,767 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1542232129] [2023-04-01 13:24:38,767 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-01 13:24:38,767 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-01 13:24:38,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 13:24:39,144 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked. [2023-04-01 13:24:39,145 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-01 13:24:39,145 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1542232129] [2023-04-01 13:24:39,145 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1542232129] provided 0 perfect and 1 imperfect interpolant sequences [2023-04-01 13:24:39,145 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1644809095] [2023-04-01 13:24:39,145 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-01 13:24:39,145 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-01 13:24:39,146 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-01 13:24:39,147 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) [2023-04-01 13:24:39,150 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-04-01 13:24:39,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 13:24:39,960 INFO L262 TraceCheckSpWp]: Trace formula consists of 2744 conjuncts, 3 conjunts are in the unsatisfiable core [2023-04-01 13:24:39,967 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-04-01 13:24:40,003 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 16 proven. 1 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2023-04-01 13:24:40,003 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-04-01 13:24:40,226 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked. [2023-04-01 13:24:40,226 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1644809095] provided 0 perfect and 2 imperfect interpolant sequences [2023-04-01 13:24:40,226 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [393280137] [2023-04-01 13:24:40,276 INFO L159 IcfgInterpreter]: Started Sifa with 173 locations of interest [2023-04-01 13:24:40,276 INFO L166 IcfgInterpreter]: Building call graph [2023-04-01 13:24:40,282 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2023-04-01 13:24:40,299 INFO L176 IcfgInterpreter]: Starting interpretation [2023-04-01 13:24:40,299 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs