/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/default/taipan/svcomp-Reach-32bit-Taipan_Default.epf -tc ../../../trunk/examples/toolchains/AutomizerC.xml --sifa.abstract.domain OctagonDomain -i ../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--usb--class--cdc-wdm.ko-entry_point.cil.out.i -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-f954360 [2023-04-03 06:04:38,069 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-04-03 06:04:38,084 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-04-03 06:04:38,141 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-04-03 06:04:38,142 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-04-03 06:04:38,144 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-04-03 06:04:38,147 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-04-03 06:04:38,149 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-04-03 06:04:38,150 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-04-03 06:04:38,154 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-04-03 06:04:38,155 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-04-03 06:04:38,156 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-04-03 06:04:38,156 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-04-03 06:04:38,165 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-04-03 06:04:38,166 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-04-03 06:04:38,167 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-04-03 06:04:38,167 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-04-03 06:04:38,168 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-04-03 06:04:38,170 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-04-03 06:04:38,188 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-04-03 06:04:38,189 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-04-03 06:04:38,190 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-04-03 06:04:38,191 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-04-03 06:04:38,192 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-04-03 06:04:38,199 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-04-03 06:04:38,199 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-04-03 06:04:38,199 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-04-03 06:04:38,201 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-04-03 06:04:38,201 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-04-03 06:04:38,202 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-04-03 06:04:38,202 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-04-03 06:04:38,202 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-04-03 06:04:38,204 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-04-03 06:04:38,204 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-04-03 06:04:38,205 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-04-03 06:04:38,205 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-04-03 06:04:38,206 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-04-03 06:04:38,206 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-04-03 06:04:38,206 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-04-03 06:04:38,207 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-04-03 06:04:38,207 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-04-03 06:04:38,209 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/taipan/svcomp-Reach-32bit-Taipan_Default.epf [2023-04-03 06:04:38,265 INFO L113 SettingsManager]: Loading preferences was successful [2023-04-03 06:04:38,265 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-04-03 06:04:38,266 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-04-03 06:04:38,266 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-04-03 06:04:38,267 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-04-03 06:04:38,267 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-04-03 06:04:38,267 INFO L138 SettingsManager]: * User list type=DISABLED [2023-04-03 06:04:38,267 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-04-03 06:04:38,267 INFO L138 SettingsManager]: * Explicit value domain=true [2023-04-03 06:04:38,267 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-04-03 06:04:38,268 INFO L138 SettingsManager]: * Octagon Domain=false [2023-04-03 06:04:38,268 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2023-04-03 06:04:38,268 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-04-03 06:04:38,268 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-04-03 06:04:38,268 INFO L138 SettingsManager]: * Interval Domain=false [2023-04-03 06:04:38,269 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-04-03 06:04:38,269 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-04-03 06:04:38,269 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2023-04-03 06:04:38,269 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-04-03 06:04:38,269 INFO L138 SettingsManager]: * sizeof long=4 [2023-04-03 06:04:38,270 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-04-03 06:04:38,270 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-04-03 06:04:38,270 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-04-03 06:04:38,270 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-04-03 06:04:38,270 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-04-03 06:04:38,270 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-04-03 06:04:38,270 INFO L138 SettingsManager]: * sizeof long double=12 [2023-04-03 06:04:38,270 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-04-03 06:04:38,271 INFO L138 SettingsManager]: * Use constant arrays=true [2023-04-03 06:04:38,271 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-04-03 06:04:38,271 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-04-03 06:04:38,271 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-04-03 06:04:38,271 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-04-03 06:04:38,271 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-04-03 06:04:38,271 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2023-04-03 06:04:38,271 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-04-03 06:04:38,272 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-04-03 06:04:38,272 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-04-03 06:04:38,272 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-04-03 06:04:38,272 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-04-03 06:04:38,272 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-04-03 06:04:38,272 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Abstract Domain -> OctagonDomain [2023-04-03 06:04:38,708 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-04-03 06:04:38,754 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-04-03 06:04:38,759 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-04-03 06:04:38,760 INFO L271 PluginConnector]: Initializing CDTParser... [2023-04-03 06:04:38,760 INFO L275 PluginConnector]: CDTParser initialized [2023-04-03 06:04:38,761 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--usb--class--cdc-wdm.ko-entry_point.cil.out.i [2023-04-03 06:04:40,847 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-04-03 06:04:41,637 INFO L351 CDTParser]: Found 1 translation units. [2023-04-03 06:04:41,638 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--usb--class--cdc-wdm.ko-entry_point.cil.out.i [2023-04-03 06:04:41,673 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b53ca88c0/06c048b6e2a446bfa45bfab3d32db115/FLAG6b7345416 [2023-04-03 06:04:41,687 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b53ca88c0/06c048b6e2a446bfa45bfab3d32db115 [2023-04-03 06:04:41,690 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-04-03 06:04:41,691 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2023-04-03 06:04:41,693 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-04-03 06:04:41,694 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-04-03 06:04:41,707 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-04-03 06:04:41,708 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.04 06:04:41" (1/1) ... [2023-04-03 06:04:41,709 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2848466b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.04 06:04:41, skipping insertion in model container [2023-04-03 06:04:41,709 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.04 06:04:41" (1/1) ... [2023-04-03 06:04:41,715 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-04-03 06:04:41,866 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-04-03 06:04:44,873 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--usb--class--cdc-wdm.ko-entry_point.cil.out.i[185536,185549] [2023-04-03 06:04:45,413 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-04-03 06:04:45,492 INFO L203 MainTranslator]: Completed pre-run [2023-04-03 06:04:45,779 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--usb--class--cdc-wdm.ko-entry_point.cil.out.i[185536,185549] [2023-04-03 06:04:45,799 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-04-03 06:04:45,894 INFO L208 MainTranslator]: Completed translation [2023-04-03 06:04:45,894 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.04 06:04:45 WrapperNode [2023-04-03 06:04:45,894 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-04-03 06:04:45,905 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-04-03 06:04:45,905 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-04-03 06:04:45,905 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-04-03 06:04:45,929 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.04 06:04:45" (1/1) ... [2023-04-03 06:04:45,929 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.04 06:04:45" (1/1) ... [2023-04-03 06:04:46,020 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.04 06:04:45" (1/1) ... [2023-04-03 06:04:46,021 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.04 06:04:45" (1/1) ... [2023-04-03 06:04:46,197 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.04 06:04:45" (1/1) ... [2023-04-03 06:04:46,234 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.04 06:04:45" (1/1) ... [2023-04-03 06:04:46,264 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.04 06:04:45" (1/1) ... [2023-04-03 06:04:46,300 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.04 06:04:45" (1/1) ... [2023-04-03 06:04:46,347 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-04-03 06:04:46,356 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-04-03 06:04:46,356 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-04-03 06:04:46,356 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-04-03 06:04:46,358 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.04 06:04:45" (1/1) ... [2023-04-03 06:04:46,383 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-04-03 06:04:46,393 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-03 06:04:46,443 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-04-03 06:04:46,475 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-04-03 06:04:46,536 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2023-04-03 06:04:46,536 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-04-03 06:04:46,536 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~$Pointer$~TO~VOID [2023-04-03 06:04:46,536 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~int~TO~int [2023-04-03 06:04:46,536 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2023-04-03 06:04:46,536 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2023-04-03 06:04:46,536 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_bit [2023-04-03 06:04:46,536 INFO L138 BoogieDeclarations]: Found implementation of procedure test_and_set_bit [2023-04-03 06:04:46,536 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2023-04-03 06:04:46,536 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2023-04-03 06:04:46,537 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add [2023-04-03 06:04:46,537 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-04-03 06:04:46,537 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2023-04-03 06:04:46,537 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2023-04-03 06:04:46,537 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_zalloc [2023-04-03 06:04:46,537 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_memset [2023-04-03 06:04:46,537 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2023-04-03 06:04:46,537 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_ulong [2023-04-03 06:04:46,537 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2023-04-03 06:04:46,537 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2023-04-03 06:04:46,537 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2023-04-03 06:04:46,537 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2023-04-03 06:04:46,537 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock_irq [2023-04-03 06:04:46,537 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2023-04-03 06:04:46,537 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irq [2023-04-03 06:04:46,538 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2023-04-03 06:04:46,538 INFO L138 BoogieDeclarations]: Found implementation of procedure queue_work [2023-04-03 06:04:46,538 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule_work [2023-04-03 06:04:46,538 INFO L138 BoogieDeclarations]: Found implementation of procedure __kmalloc [2023-04-03 06:04:46,538 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2023-04-03 06:04:46,538 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2023-04-03 06:04:46,538 INFO L138 BoogieDeclarations]: Found implementation of procedure kobject_name [2023-04-03 06:04:46,538 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_from_user [2023-04-03 06:04:46,538 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_to_user [2023-04-03 06:04:46,538 INFO L138 BoogieDeclarations]: Found implementation of procedure iminor [2023-04-03 06:04:46,538 INFO L138 BoogieDeclarations]: Found implementation of procedure poll_wait [2023-04-03 06:04:46,552 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_dir_in [2023-04-03 06:04:46,553 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_xfer_int [2023-04-03 06:04:46,553 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_is_int_in [2023-04-03 06:04:46,553 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_maxp [2023-04-03 06:04:46,553 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_name [2023-04-03 06:04:46,554 INFO L138 BoogieDeclarations]: Found implementation of procedure pm_runtime_mark_last_busy [2023-04-03 06:04:46,554 INFO L138 BoogieDeclarations]: Found implementation of procedure interface_to_usbdev [2023-04-03 06:04:46,554 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_mark_last_busy [2023-04-03 06:04:46,554 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_fill_control_urb [2023-04-03 06:04:46,555 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_fill_int_urb [2023-04-03 06:04:46,555 INFO L138 BoogieDeclarations]: Found implementation of procedure __create_pipe [2023-04-03 06:04:46,555 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_translate_errors [2023-04-03 06:04:46,555 INFO L138 BoogieDeclarations]: Found implementation of procedure wdm_find_device [2023-04-03 06:04:46,555 INFO L138 BoogieDeclarations]: Found implementation of procedure wdm_find_device_by_minor [2023-04-03 06:04:46,555 INFO L138 BoogieDeclarations]: Found implementation of procedure wdm_out_callback [2023-04-03 06:04:46,555 INFO L138 BoogieDeclarations]: Found implementation of procedure wdm_in_callback [2023-04-03 06:04:46,555 INFO L138 BoogieDeclarations]: Found implementation of procedure wdm_int_callback [2023-04-03 06:04:46,555 INFO L138 BoogieDeclarations]: Found implementation of procedure kill_urbs [2023-04-03 06:04:46,556 INFO L138 BoogieDeclarations]: Found implementation of procedure free_urbs [2023-04-03 06:04:46,556 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2023-04-03 06:04:46,556 INFO L138 BoogieDeclarations]: Found implementation of procedure wdm_write [2023-04-03 06:04:46,556 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_wdm_read_flag [2023-04-03 06:04:46,556 INFO L138 BoogieDeclarations]: Found implementation of procedure wdm_read [2023-04-03 06:04:46,556 INFO L138 BoogieDeclarations]: Found implementation of procedure wdm_flush [2023-04-03 06:04:46,556 INFO L138 BoogieDeclarations]: Found implementation of procedure wdm_poll [2023-04-03 06:04:46,556 INFO L138 BoogieDeclarations]: Found implementation of procedure wdm_open [2023-04-03 06:04:46,557 INFO L138 BoogieDeclarations]: Found implementation of procedure wdm_release [2023-04-03 06:04:46,557 INFO L138 BoogieDeclarations]: Found implementation of procedure wdm_ioctl [2023-04-03 06:04:46,557 INFO L138 BoogieDeclarations]: Found implementation of procedure wdm_rxwork [2023-04-03 06:04:46,557 INFO L138 BoogieDeclarations]: Found implementation of procedure wdm_create [2023-04-03 06:04:46,557 INFO L138 BoogieDeclarations]: Found implementation of procedure wdm_manage_power [2023-04-03 06:04:46,557 INFO L138 BoogieDeclarations]: Found implementation of procedure wdm_probe [2023-04-03 06:04:46,557 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_cdc_wdm_register [2023-04-03 06:04:46,557 INFO L138 BoogieDeclarations]: Found implementation of procedure wdm_disconnect [2023-04-03 06:04:46,557 INFO L138 BoogieDeclarations]: Found implementation of procedure wdm_suspend [2023-04-03 06:04:46,557 INFO L138 BoogieDeclarations]: Found implementation of procedure recover_from_urb_loss [2023-04-03 06:04:46,557 INFO L138 BoogieDeclarations]: Found implementation of procedure wdm_resume [2023-04-03 06:04:46,557 INFO L138 BoogieDeclarations]: Found implementation of procedure wdm_pre_reset [2023-04-03 06:04:46,557 INFO L138 BoogieDeclarations]: Found implementation of procedure wdm_post_reset [2023-04-03 06:04:46,557 INFO L138 BoogieDeclarations]: Found implementation of procedure wdm_driver_init [2023-04-03 06:04:46,558 INFO L138 BoogieDeclarations]: Found implementation of procedure wdm_driver_exit [2023-04-03 06:04:46,558 INFO L138 BoogieDeclarations]: Found implementation of procedure call_and_disable_all_1 [2023-04-03 06:04:46,558 INFO L138 BoogieDeclarations]: Found implementation of procedure invoke_work_1 [2023-04-03 06:04:46,559 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_driver_2 [2023-04-03 06:04:46,559 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_file_operations_3 [2023-04-03 06:04:46,559 INFO L138 BoogieDeclarations]: Found implementation of procedure call_and_disable_work_1 [2023-04-03 06:04:46,559 INFO L138 BoogieDeclarations]: Found implementation of procedure disable_work_1 [2023-04-03 06:04:46,559 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_work_1 [2023-04-03 06:04:46,559 INFO L138 BoogieDeclarations]: Found implementation of procedure work_init_1 [2023-04-03 06:04:46,560 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2023-04-03 06:04:46,560 INFO L138 BoogieDeclarations]: Found implementation of procedure ERR_PTR [2023-04-03 06:04:46,560 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_queue_work_on_5 [2023-04-03 06:04:46,560 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_queue_delayed_work_on_6 [2023-04-03 06:04:46,560 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_queue_work_on_7 [2023-04-03 06:04:46,560 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_flush_workqueue_8 [2023-04-03 06:04:46,560 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_queue_delayed_work_on_9 [2023-04-03 06:04:46,560 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_10 [2023-04-03 06:04:46,560 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_11 [2023-04-03 06:04:46,561 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_12 [2023-04-03 06:04:46,561 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_13 [2023-04-03 06:04:46,561 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_14 [2023-04-03 06:04:46,561 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_trylock_15 [2023-04-03 06:04:46,561 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_16 [2023-04-03 06:04:46,561 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_interruptible_17 [2023-04-03 06:04:46,561 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_18 [2023-04-03 06:04:46,561 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_19 [2023-04-03 06:04:46,561 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_interruptible_20 [2023-04-03 06:04:46,561 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_21 [2023-04-03 06:04:46,561 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_22 [2023-04-03 06:04:46,561 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_23 [2023-04-03 06:04:46,562 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_24 [2023-04-03 06:04:46,562 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_25 [2023-04-03 06:04:46,562 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_26 [2023-04-03 06:04:46,562 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_27 [2023-04-03 06:04:46,562 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_28 [2023-04-03 06:04:46,562 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_29 [2023-04-03 06:04:46,562 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_30 [2023-04-03 06:04:46,562 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_31 [2023-04-03 06:04:46,562 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_32 [2023-04-03 06:04:46,562 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_cancel_work_sync_33 [2023-04-03 06:04:46,563 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_34 [2023-04-03 06:04:46,564 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_35 [2023-04-03 06:04:46,564 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_36 [2023-04-03 06:04:46,564 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_37 [2023-04-03 06:04:46,564 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_38 [2023-04-03 06:04:46,565 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_cancel_work_sync_39 [2023-04-03 06:04:46,567 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_40 [2023-04-03 06:04:46,568 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_41 [2023-04-03 06:04:46,573 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_42 [2023-04-03 06:04:46,573 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_43 [2023-04-03 06:04:46,573 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_cancel_work_sync_44 [2023-04-03 06:04:46,574 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_45 [2023-04-03 06:04:46,574 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_46 [2023-04-03 06:04:46,574 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_register_driver_47 [2023-04-03 06:04:46,574 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_deregister_48 [2023-04-03 06:04:46,574 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2023-04-03 06:04:46,574 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int_negative [2023-04-03 06:04:46,574 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2023-04-03 06:04:46,574 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_err_ptr [2023-04-03 06:04:46,574 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_ptr_err [2023-04-03 06:04:46,574 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err_or_null [2023-04-03 06:04:46,574 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_interruptible_i_mutex_of_inode [2023-04-03 06:04:46,574 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_killable_i_mutex_of_inode [2023-04-03 06:04:46,574 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_i_mutex_of_inode [2023-04-03 06:04:46,574 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_trylock_i_mutex_of_inode [2023-04-03 06:04:46,574 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_dec_and_mutex_lock_i_mutex_of_inode [2023-04-03 06:04:46,574 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_is_locked_i_mutex_of_inode [2023-04-03 06:04:46,574 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_i_mutex_of_inode [2023-04-03 06:04:46,575 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_lock_device_i_mutex_of_inode [2023-04-03 06:04:46,575 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_trylock_device_i_mutex_of_inode [2023-04-03 06:04:46,575 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_lock_device_for_reset_i_mutex_of_inode [2023-04-03 06:04:46,575 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_unlock_device_i_mutex_of_inode [2023-04-03 06:04:46,575 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_interruptible_lock [2023-04-03 06:04:46,575 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_killable_lock [2023-04-03 06:04:46,575 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_lock [2023-04-03 06:04:46,575 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_trylock_lock [2023-04-03 06:04:46,575 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_dec_and_mutex_lock_lock [2023-04-03 06:04:46,575 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_is_locked_lock [2023-04-03 06:04:46,575 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_lock [2023-04-03 06:04:46,575 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_lock_device_lock [2023-04-03 06:04:46,575 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_trylock_device_lock [2023-04-03 06:04:46,575 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_lock_device_for_reset_lock [2023-04-03 06:04:46,575 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_unlock_device_lock [2023-04-03 06:04:46,575 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_interruptible_mutex_of_device [2023-04-03 06:04:46,575 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_killable_mutex_of_device [2023-04-03 06:04:46,576 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_mutex_of_device [2023-04-03 06:04:46,576 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_trylock_mutex_of_device [2023-04-03 06:04:46,576 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_dec_and_mutex_lock_mutex_of_device [2023-04-03 06:04:46,576 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_is_locked_mutex_of_device [2023-04-03 06:04:46,576 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_mutex_of_device [2023-04-03 06:04:46,576 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_lock_device_mutex_of_device [2023-04-03 06:04:46,576 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_trylock_device_mutex_of_device [2023-04-03 06:04:46,576 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_lock_device_for_reset_mutex_of_device [2023-04-03 06:04:46,576 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_unlock_device_mutex_of_device [2023-04-03 06:04:46,576 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_interruptible_rlock_of_wdm_device [2023-04-03 06:04:46,576 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_killable_rlock_of_wdm_device [2023-04-03 06:04:46,576 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_rlock_of_wdm_device [2023-04-03 06:04:46,576 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_trylock_rlock_of_wdm_device [2023-04-03 06:04:46,576 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_dec_and_mutex_lock_rlock_of_wdm_device [2023-04-03 06:04:46,577 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_is_locked_rlock_of_wdm_device [2023-04-03 06:04:46,577 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_rlock_of_wdm_device [2023-04-03 06:04:46,577 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_lock_device_rlock_of_wdm_device [2023-04-03 06:04:46,577 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_trylock_device_rlock_of_wdm_device [2023-04-03 06:04:46,577 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_lock_device_for_reset_rlock_of_wdm_device [2023-04-03 06:04:46,577 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_unlock_device_rlock_of_wdm_device [2023-04-03 06:04:46,577 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_interruptible_wdm_mutex [2023-04-03 06:04:46,577 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_killable_wdm_mutex [2023-04-03 06:04:46,577 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_wdm_mutex [2023-04-03 06:04:46,577 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_trylock_wdm_mutex [2023-04-03 06:04:46,577 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_dec_and_mutex_lock_wdm_mutex [2023-04-03 06:04:46,577 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_is_locked_wdm_mutex [2023-04-03 06:04:46,577 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_wdm_mutex [2023-04-03 06:04:46,577 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_lock_device_wdm_mutex [2023-04-03 06:04:46,578 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_trylock_device_wdm_mutex [2023-04-03 06:04:46,578 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_lock_device_for_reset_wdm_mutex [2023-04-03 06:04:46,578 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_unlock_device_wdm_mutex [2023-04-03 06:04:46,578 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_interruptible_wlock_of_wdm_device [2023-04-03 06:04:46,578 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_killable_wlock_of_wdm_device [2023-04-03 06:04:46,578 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_wlock_of_wdm_device [2023-04-03 06:04:46,578 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_trylock_wlock_of_wdm_device [2023-04-03 06:04:46,578 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_dec_and_mutex_lock_wlock_of_wdm_device [2023-04-03 06:04:46,578 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_is_locked_wlock_of_wdm_device [2023-04-03 06:04:46,578 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_wlock_of_wdm_device [2023-04-03 06:04:46,578 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_lock_device_wlock_of_wdm_device [2023-04-03 06:04:46,578 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_trylock_device_wlock_of_wdm_device [2023-04-03 06:04:46,578 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_lock_device_for_reset_wlock_of_wdm_device [2023-04-03 06:04:46,578 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_unlock_device_wlock_of_wdm_device [2023-04-03 06:04:46,578 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2023-04-03 06:04:46,579 INFO L138 BoogieDeclarations]: Found implementation of procedure __copy_from_user_overflow [2023-04-03 06:04:46,579 INFO L138 BoogieDeclarations]: Found implementation of procedure __copy_to_user_overflow [2023-04-03 06:04:46,579 INFO L138 BoogieDeclarations]: Found implementation of procedure __dynamic_dev_dbg [2023-04-03 06:04:46,579 INFO L138 BoogieDeclarations]: Found implementation of procedure __dynamic_pr_debug [2023-04-03 06:04:46,579 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_waitqueue_head [2023-04-03 06:04:46,579 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_work [2023-04-03 06:04:46,579 INFO L138 BoogieDeclarations]: Found implementation of procedure __list_add [2023-04-03 06:04:46,579 INFO L138 BoogieDeclarations]: Found implementation of procedure __might_fault [2023-04-03 06:04:46,579 INFO L138 BoogieDeclarations]: Found implementation of procedure __might_sleep [2023-04-03 06:04:46,579 INFO L138 BoogieDeclarations]: Found implementation of procedure __mutex_init [2023-04-03 06:04:46,579 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2023-04-03 06:04:46,579 INFO L138 BoogieDeclarations]: Found implementation of procedure __wake_up [2023-04-03 06:04:46,579 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_from_user [2023-04-03 06:04:46,579 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_to_user [2023-04-03 06:04:46,579 INFO L138 BoogieDeclarations]: Found implementation of procedure _dev_info [2023-04-03 06:04:46,580 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock [2023-04-03 06:04:46,580 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock_irq [2023-04-03 06:04:46,580 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock_irqsave [2023-04-03 06:04:46,580 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_unlock [2023-04-03 06:04:46,580 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_unlock_irq [2023-04-03 06:04:46,580 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_unlock_irqrestore [2023-04-03 06:04:46,580 INFO L138 BoogieDeclarations]: Found implementation of procedure cancel_work_sync [2023-04-03 06:04:46,580 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_err [2023-04-03 06:04:46,580 INFO L138 BoogieDeclarations]: Found implementation of procedure finish_wait [2023-04-03 06:04:46,580 INFO L138 BoogieDeclarations]: Found implementation of procedure flush_workqueue [2023-04-03 06:04:46,580 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize [2023-04-03 06:04:46,580 INFO L138 BoogieDeclarations]: Found implementation of procedure list_del [2023-04-03 06:04:46,580 INFO L138 BoogieDeclarations]: Found implementation of procedure lockdep_init_map [2023-04-03 06:04:46,581 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock [2023-04-03 06:04:46,581 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_interruptible [2023-04-03 06:04:46,581 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_trylock [2023-04-03 06:04:46,581 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2023-04-03 06:04:46,581 INFO L138 BoogieDeclarations]: Found implementation of procedure noop_llseek [2023-04-03 06:04:46,581 INFO L138 BoogieDeclarations]: Found implementation of procedure prepare_to_wait_event [2023-04-03 06:04:46,581 INFO L138 BoogieDeclarations]: Found implementation of procedure queue_delayed_work_on [2023-04-03 06:04:46,581 INFO L138 BoogieDeclarations]: Found implementation of procedure queue_work_on [2023-04-03 06:04:46,581 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule [2023-04-03 06:04:46,581 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_alloc_urb [2023-04-03 06:04:46,581 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_autopm_get_interface [2023-04-03 06:04:46,581 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_autopm_put_interface [2023-04-03 06:04:46,582 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_deregister [2023-04-03 06:04:46,582 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_deregister_dev [2023-04-03 06:04:46,582 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_free_urb [2023-04-03 06:04:46,582 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_kill_urb [2023-04-03 06:04:46,596 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_register_dev [2023-04-03 06:04:46,599 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_register_driver [2023-04-03 06:04:46,599 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_submit_urb [2023-04-03 06:04:46,600 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2023-04-03 06:04:46,600 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2023-04-03 06:04:46,600 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2023-04-03 06:04:46,600 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memmove [2023-04-03 06:04:46,600 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2023-04-03 06:04:46,601 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2023-04-03 06:04:46,601 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_perror_fail [2023-04-03 06:04:46,601 INFO L130 BoogieDeclarations]: Found specification of procedure __assert [2023-04-03 06:04:46,601 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2023-04-03 06:04:46,601 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-04-03 06:04:46,601 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2023-04-03 06:04:46,601 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2023-04-03 06:04:46,601 INFO L130 BoogieDeclarations]: Found specification of procedure clear_bit [2023-04-03 06:04:46,601 INFO L130 BoogieDeclarations]: Found specification of procedure test_and_set_bit [2023-04-03 06:04:46,601 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2023-04-03 06:04:46,601 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-04-03 06:04:46,601 INFO L130 BoogieDeclarations]: Found specification of procedure __dynamic_pr_debug [2023-04-03 06:04:46,601 INFO L130 BoogieDeclarations]: Found specification of procedure __dynamic_dev_dbg [2023-04-03 06:04:46,601 INFO L130 BoogieDeclarations]: Found specification of procedure __might_sleep [2023-04-03 06:04:46,601 INFO L130 BoogieDeclarations]: Found specification of procedure __might_fault [2023-04-03 06:04:46,602 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_err_ptr [2023-04-03 06:04:46,602 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2023-04-03 06:04:46,602 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-04-03 06:04:46,602 INFO L130 BoogieDeclarations]: Found specification of procedure __list_add [2023-04-03 06:04:46,602 INFO L130 BoogieDeclarations]: Found specification of procedure list_add [2023-04-03 06:04:46,602 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-04-03 06:04:46,602 INFO L130 BoogieDeclarations]: Found specification of procedure list_del [2023-04-03 06:04:46,602 INFO L130 BoogieDeclarations]: Found specification of procedure memset [2023-04-03 06:04:46,602 INFO L130 BoogieDeclarations]: Found specification of procedure memmove [2023-04-03 06:04:46,602 INFO L130 BoogieDeclarations]: Found specification of procedure ERR_PTR [2023-04-03 06:04:46,602 INFO L130 BoogieDeclarations]: Found specification of procedure lockdep_init_map [2023-04-03 06:04:46,602 INFO L130 BoogieDeclarations]: Found specification of procedure __mutex_init [2023-04-03 06:04:46,602 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_trylock [2023-04-03 06:04:46,603 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_trylock_15 [2023-04-03 06:04:46,603 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2023-04-03 06:04:46,603 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_11 [2023-04-03 06:04:46,603 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_12 [2023-04-03 06:04:46,603 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_16 [2023-04-03 06:04:46,603 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_18 [2023-04-03 06:04:46,603 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_19 [2023-04-03 06:04:46,603 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_21 [2023-04-03 06:04:46,603 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_24 [2023-04-03 06:04:46,603 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_25 [2023-04-03 06:04:46,603 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_28 [2023-04-03 06:04:46,603 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_29 [2023-04-03 06:04:46,603 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_34 [2023-04-03 06:04:46,604 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_35 [2023-04-03 06:04:46,604 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_36 [2023-04-03 06:04:46,604 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_40 [2023-04-03 06:04:46,604 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_41 [2023-04-03 06:04:46,604 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_45 [2023-04-03 06:04:46,604 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_46 [2023-04-03 06:04:46,604 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2023-04-03 06:04:46,604 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2023-04-03 06:04:46,604 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2023-04-03 06:04:46,604 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_ulong [2023-04-03 06:04:46,604 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-04-03 06:04:46,604 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2023-04-03 06:04:46,604 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-04-03 06:04:46,604 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2023-04-03 06:04:46,605 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2023-04-03 06:04:46,605 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_zalloc [2023-04-03 06:04:46,605 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_memset [2023-04-03 06:04:46,605 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2023-04-03 06:04:46,605 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2023-04-03 06:04:46,605 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_ulong [2023-04-03 06:04:46,605 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2023-04-03 06:04:46,605 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_interruptible [2023-04-03 06:04:46,605 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_interruptible_17 [2023-04-03 06:04:46,605 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_interruptible_20 [2023-04-03 06:04:46,605 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock [2023-04-03 06:04:46,605 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_10 [2023-04-03 06:04:46,605 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_13 [2023-04-03 06:04:46,605 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_14 [2023-04-03 06:04:46,605 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_22 [2023-04-03 06:04:46,606 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_23 [2023-04-03 06:04:46,606 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_26 [2023-04-03 06:04:46,606 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_27 [2023-04-03 06:04:46,606 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_30 [2023-04-03 06:04:46,606 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_31 [2023-04-03 06:04:46,606 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_32 [2023-04-03 06:04:46,606 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_37 [2023-04-03 06:04:46,606 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_38 [2023-04-03 06:04:46,606 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_42 [2023-04-03 06:04:46,606 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_43 [2023-04-03 06:04:46,606 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_i_mutex_of_inode [2023-04-03 06:04:46,606 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_i_mutex_of_inode [2023-04-03 06:04:46,606 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_lock [2023-04-03 06:04:46,606 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_lock [2023-04-03 06:04:46,606 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_mutex_of_device [2023-04-03 06:04:46,606 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_trylock_mutex_of_device [2023-04-03 06:04:46,607 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_mutex_of_device [2023-04-03 06:04:46,607 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_interruptible_rlock_of_wdm_device [2023-04-03 06:04:46,607 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_rlock_of_wdm_device [2023-04-03 06:04:46,607 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_rlock_of_wdm_device [2023-04-03 06:04:46,607 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_wdm_mutex [2023-04-03 06:04:46,607 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_wdm_mutex [2023-04-03 06:04:46,607 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_interruptible_wlock_of_wdm_device [2023-04-03 06:04:46,607 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_wlock_of_wdm_device [2023-04-03 06:04:46,607 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_wlock_of_wdm_device [2023-04-03 06:04:46,607 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2023-04-03 06:04:46,607 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock [2023-04-03 06:04:46,607 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock_irq [2023-04-03 06:04:46,607 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock_irqsave [2023-04-03 06:04:46,607 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_unlock [2023-04-03 06:04:46,608 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_unlock_irq [2023-04-03 06:04:46,608 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_unlock_irqrestore [2023-04-03 06:04:46,608 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2023-04-03 06:04:46,608 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2023-04-03 06:04:46,608 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock_irq [2023-04-03 06:04:46,608 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2023-04-03 06:04:46,608 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irq [2023-04-03 06:04:46,608 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2023-04-03 06:04:46,608 INFO L130 BoogieDeclarations]: Found specification of procedure __init_waitqueue_head [2023-04-03 06:04:46,608 INFO L130 BoogieDeclarations]: Found specification of procedure __wake_up [2023-04-03 06:04:46,608 INFO L130 BoogieDeclarations]: Found specification of procedure prepare_to_wait_event [2023-04-03 06:04:46,608 INFO L130 BoogieDeclarations]: Found specification of procedure finish_wait [2023-04-03 06:04:46,608 INFO L130 BoogieDeclarations]: Found specification of procedure __init_work [2023-04-03 06:04:46,608 INFO L130 BoogieDeclarations]: Found specification of procedure queue_work_on [2023-04-03 06:04:46,609 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_queue_work_on_5 [2023-04-03 06:04:46,609 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_queue_work_on_7 [2023-04-03 06:04:46,609 INFO L130 BoogieDeclarations]: Found specification of procedure queue_delayed_work_on [2023-04-03 06:04:46,609 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_queue_delayed_work_on_6 [2023-04-03 06:04:46,609 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_queue_delayed_work_on_9 [2023-04-03 06:04:46,609 INFO L130 BoogieDeclarations]: Found specification of procedure flush_workqueue [2023-04-03 06:04:46,609 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_flush_workqueue_8 [2023-04-03 06:04:46,609 INFO L130 BoogieDeclarations]: Found specification of procedure cancel_work_sync [2023-04-03 06:04:46,609 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_cancel_work_sync_33 [2023-04-03 06:04:46,609 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_cancel_work_sync_39 [2023-04-03 06:04:46,609 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_cancel_work_sync_44 [2023-04-03 06:04:46,609 INFO L130 BoogieDeclarations]: Found specification of procedure queue_work [2023-04-03 06:04:46,609 INFO L130 BoogieDeclarations]: Found specification of procedure schedule_work [2023-04-03 06:04:46,610 INFO L130 BoogieDeclarations]: Found specification of procedure schedule [2023-04-03 06:04:46,610 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2023-04-03 06:04:46,610 INFO L130 BoogieDeclarations]: Found specification of procedure __kmalloc [2023-04-03 06:04:46,610 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2023-04-03 06:04:46,610 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2023-04-03 06:04:46,610 INFO L130 BoogieDeclarations]: Found specification of procedure call_and_disable_all_1 [2023-04-03 06:04:46,610 INFO L130 BoogieDeclarations]: Found specification of procedure invoke_work_1 [2023-04-03 06:04:46,610 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_driver_2 [2023-04-03 06:04:46,610 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_file_operations_3 [2023-04-03 06:04:46,610 INFO L130 BoogieDeclarations]: Found specification of procedure call_and_disable_work_1 [2023-04-03 06:04:46,610 INFO L130 BoogieDeclarations]: Found specification of procedure disable_work_1 [2023-04-03 06:04:46,610 INFO L130 BoogieDeclarations]: Found specification of procedure activate_work_1 [2023-04-03 06:04:46,610 INFO L130 BoogieDeclarations]: Found specification of procedure work_init_1 [2023-04-03 06:04:46,610 INFO L130 BoogieDeclarations]: Found specification of procedure kobject_name [2023-04-03 06:04:46,611 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_from_user [2023-04-03 06:04:46,611 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_to_user [2023-04-03 06:04:46,611 INFO L130 BoogieDeclarations]: Found specification of procedure __copy_from_user_overflow [2023-04-03 06:04:46,611 INFO L130 BoogieDeclarations]: Found specification of procedure __copy_to_user_overflow [2023-04-03 06:04:46,611 INFO L130 BoogieDeclarations]: Found specification of procedure copy_from_user [2023-04-03 06:04:46,611 INFO L130 BoogieDeclarations]: Found specification of procedure copy_to_user [2023-04-03 06:04:46,611 INFO L130 BoogieDeclarations]: Found specification of procedure iminor [2023-04-03 06:04:46,611 INFO L130 BoogieDeclarations]: Found specification of procedure noop_llseek [2023-04-03 06:04:46,611 INFO L130 BoogieDeclarations]: Found specification of procedure poll_wait [2023-04-03 06:04:46,611 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~$Pointer$~TO~VOID [2023-04-03 06:04:46,611 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_dir_in [2023-04-03 06:04:46,611 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_xfer_int [2023-04-03 06:04:46,611 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_is_int_in [2023-04-03 06:04:46,611 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_maxp [2023-04-03 06:04:46,612 INFO L130 BoogieDeclarations]: Found specification of procedure dev_name [2023-04-03 06:04:46,612 INFO L130 BoogieDeclarations]: Found specification of procedure dev_err [2023-04-03 06:04:46,612 INFO L130 BoogieDeclarations]: Found specification of procedure _dev_info [2023-04-03 06:04:46,717 INFO L130 BoogieDeclarations]: Found specification of procedure pm_runtime_mark_last_busy [2023-04-03 06:04:46,717 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-04-03 06:04:46,717 INFO L130 BoogieDeclarations]: Found specification of procedure interface_to_usbdev [2023-04-03 06:04:46,717 INFO L130 BoogieDeclarations]: Found specification of procedure usb_autopm_get_interface [2023-04-03 06:04:46,717 INFO L130 BoogieDeclarations]: Found specification of procedure usb_autopm_put_interface [2023-04-03 06:04:46,717 INFO L130 BoogieDeclarations]: Found specification of procedure usb_mark_last_busy [2023-04-03 06:04:46,717 INFO L130 BoogieDeclarations]: Found specification of procedure usb_register_driver [2023-04-03 06:04:46,717 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_register_driver_47 [2023-04-03 06:04:46,717 INFO L130 BoogieDeclarations]: Found specification of procedure usb_deregister [2023-04-03 06:04:46,717 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_deregister_48 [2023-04-03 06:04:46,717 INFO L130 BoogieDeclarations]: Found specification of procedure usb_register_dev [2023-04-03 06:04:46,717 INFO L130 BoogieDeclarations]: Found specification of procedure usb_deregister_dev [2023-04-03 06:04:46,717 INFO L130 BoogieDeclarations]: Found specification of procedure usb_fill_control_urb [2023-04-03 06:04:46,717 INFO L130 BoogieDeclarations]: Found specification of procedure usb_fill_int_urb [2023-04-03 06:04:46,717 INFO L130 BoogieDeclarations]: Found specification of procedure usb_alloc_urb [2023-04-03 06:04:46,717 INFO L130 BoogieDeclarations]: Found specification of procedure usb_free_urb [2023-04-03 06:04:46,717 INFO L130 BoogieDeclarations]: Found specification of procedure usb_submit_urb [2023-04-03 06:04:46,718 INFO L130 BoogieDeclarations]: Found specification of procedure usb_kill_urb [2023-04-03 06:04:46,718 INFO L130 BoogieDeclarations]: Found specification of procedure __create_pipe [2023-04-03 06:04:46,718 INFO L130 BoogieDeclarations]: Found specification of procedure usb_translate_errors [2023-04-03 06:04:46,718 INFO L130 BoogieDeclarations]: Found specification of procedure usb_cdc_wdm_register [2023-04-03 06:04:46,718 INFO L130 BoogieDeclarations]: Found specification of procedure wdm_find_device [2023-04-03 06:04:46,718 INFO L130 BoogieDeclarations]: Found specification of procedure wdm_find_device_by_minor [2023-04-03 06:04:46,718 INFO L130 BoogieDeclarations]: Found specification of procedure wdm_out_callback [2023-04-03 06:04:46,718 INFO L130 BoogieDeclarations]: Found specification of procedure wdm_in_callback [2023-04-03 06:04:46,718 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-04-03 06:04:46,718 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memmove [2023-04-03 06:04:46,718 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-04-03 06:04:46,718 INFO L130 BoogieDeclarations]: Found specification of procedure wdm_int_callback [2023-04-03 06:04:46,718 INFO L130 BoogieDeclarations]: Found specification of procedure kill_urbs [2023-04-03 06:04:46,718 INFO L130 BoogieDeclarations]: Found specification of procedure free_urbs [2023-04-03 06:04:46,718 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2023-04-03 06:04:46,718 INFO L130 BoogieDeclarations]: Found specification of procedure wdm_write [2023-04-03 06:04:46,718 INFO L130 BoogieDeclarations]: Found specification of procedure clear_wdm_read_flag [2023-04-03 06:04:46,718 INFO L130 BoogieDeclarations]: Found specification of procedure wdm_read [2023-04-03 06:04:46,719 INFO L130 BoogieDeclarations]: Found specification of procedure wdm_flush [2023-04-03 06:04:46,719 INFO L130 BoogieDeclarations]: Found specification of procedure wdm_poll [2023-04-03 06:04:46,719 INFO L130 BoogieDeclarations]: Found specification of procedure wdm_open [2023-04-03 06:04:46,719 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~int~TO~int [2023-04-03 06:04:46,719 INFO L130 BoogieDeclarations]: Found specification of procedure wdm_release [2023-04-03 06:04:46,719 INFO L130 BoogieDeclarations]: Found specification of procedure wdm_ioctl [2023-04-03 06:04:46,719 INFO L130 BoogieDeclarations]: Found specification of procedure wdm_rxwork [2023-04-03 06:04:46,719 INFO L130 BoogieDeclarations]: Found specification of procedure wdm_create [2023-04-03 06:04:46,719 INFO L130 BoogieDeclarations]: Found specification of procedure wdm_manage_power [2023-04-03 06:04:46,719 INFO L130 BoogieDeclarations]: Found specification of procedure wdm_probe [2023-04-03 06:04:46,719 INFO L130 BoogieDeclarations]: Found specification of procedure wdm_disconnect [2023-04-03 06:04:46,719 INFO L130 BoogieDeclarations]: Found specification of procedure wdm_suspend [2023-04-03 06:04:46,719 INFO L130 BoogieDeclarations]: Found specification of procedure recover_from_urb_loss [2023-04-03 06:04:46,719 INFO L130 BoogieDeclarations]: Found specification of procedure wdm_resume [2023-04-03 06:04:46,719 INFO L130 BoogieDeclarations]: Found specification of procedure wdm_pre_reset [2023-04-03 06:04:46,719 INFO L130 BoogieDeclarations]: Found specification of procedure wdm_post_reset [2023-04-03 06:04:46,719 INFO L130 BoogieDeclarations]: Found specification of procedure wdm_driver_init [2023-04-03 06:04:46,719 INFO L130 BoogieDeclarations]: Found specification of procedure wdm_driver_exit [2023-04-03 06:04:46,719 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize [2023-04-03 06:04:46,719 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2023-04-03 06:04:46,720 INFO L130 BoogieDeclarations]: Found specification of procedure main [2023-04-03 06:04:46,720 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2023-04-03 06:04:46,720 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int_negative [2023-04-03 06:04:46,720 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2023-04-03 06:04:46,720 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_ptr_err [2023-04-03 06:04:46,720 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err_or_null [2023-04-03 06:04:46,720 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_interruptible_i_mutex_of_inode [2023-04-03 06:04:46,720 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_killable_i_mutex_of_inode [2023-04-03 06:04:46,720 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_trylock_i_mutex_of_inode [2023-04-03 06:04:46,720 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_dec_and_mutex_lock_i_mutex_of_inode [2023-04-03 06:04:46,720 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_is_locked_i_mutex_of_inode [2023-04-03 06:04:46,720 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_lock_device_i_mutex_of_inode [2023-04-03 06:04:46,720 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_trylock_device_i_mutex_of_inode [2023-04-03 06:04:46,720 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_lock_device_for_reset_i_mutex_of_inode [2023-04-03 06:04:46,720 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_unlock_device_i_mutex_of_inode [2023-04-03 06:04:46,720 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_interruptible_lock [2023-04-03 06:04:46,720 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_killable_lock [2023-04-03 06:04:46,720 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_trylock_lock [2023-04-03 06:04:46,720 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_dec_and_mutex_lock_lock [2023-04-03 06:04:46,721 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_is_locked_lock [2023-04-03 06:04:46,721 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_lock_device_lock [2023-04-03 06:04:46,721 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_trylock_device_lock [2023-04-03 06:04:46,721 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_lock_device_for_reset_lock [2023-04-03 06:04:46,721 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_unlock_device_lock [2023-04-03 06:04:46,721 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_interruptible_mutex_of_device [2023-04-03 06:04:46,721 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_killable_mutex_of_device [2023-04-03 06:04:46,721 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_dec_and_mutex_lock_mutex_of_device [2023-04-03 06:04:46,721 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_is_locked_mutex_of_device [2023-04-03 06:04:46,721 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_lock_device_mutex_of_device [2023-04-03 06:04:46,721 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_trylock_device_mutex_of_device [2023-04-03 06:04:46,721 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_lock_device_for_reset_mutex_of_device [2023-04-03 06:04:46,721 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_unlock_device_mutex_of_device [2023-04-03 06:04:46,721 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_killable_rlock_of_wdm_device [2023-04-03 06:04:46,721 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_trylock_rlock_of_wdm_device [2023-04-03 06:04:46,721 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_dec_and_mutex_lock_rlock_of_wdm_device [2023-04-03 06:04:46,721 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_is_locked_rlock_of_wdm_device [2023-04-03 06:04:46,721 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_lock_device_rlock_of_wdm_device [2023-04-03 06:04:46,722 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_trylock_device_rlock_of_wdm_device [2023-04-03 06:04:46,722 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_lock_device_for_reset_rlock_of_wdm_device [2023-04-03 06:04:46,724 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_unlock_device_rlock_of_wdm_device [2023-04-03 06:04:46,724 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_interruptible_wdm_mutex [2023-04-03 06:04:46,724 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_killable_wdm_mutex [2023-04-03 06:04:46,724 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_trylock_wdm_mutex [2023-04-03 06:04:46,724 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_dec_and_mutex_lock_wdm_mutex [2023-04-03 06:04:46,724 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_is_locked_wdm_mutex [2023-04-03 06:04:46,724 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_lock_device_wdm_mutex [2023-04-03 06:04:46,724 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_trylock_device_wdm_mutex [2023-04-03 06:04:46,724 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_lock_device_for_reset_wdm_mutex [2023-04-03 06:04:46,724 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_unlock_device_wdm_mutex [2023-04-03 06:04:46,724 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_killable_wlock_of_wdm_device [2023-04-03 06:04:46,725 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_trylock_wlock_of_wdm_device [2023-04-03 06:04:46,725 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_dec_and_mutex_lock_wlock_of_wdm_device [2023-04-03 06:04:46,725 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_is_locked_wlock_of_wdm_device [2023-04-03 06:04:46,725 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_lock_device_wlock_of_wdm_device [2023-04-03 06:04:46,725 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_trylock_device_wlock_of_wdm_device [2023-04-03 06:04:46,725 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_lock_device_for_reset_wlock_of_wdm_device [2023-04-03 06:04:46,725 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_unlock_device_wlock_of_wdm_device [2023-04-03 06:04:46,725 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_bool [2023-04-03 06:04:46,725 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_long [2023-04-03 06:04:46,725 INFO L130 BoogieDeclarations]: Found specification of procedure free [2023-04-03 06:04:46,725 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2023-04-03 06:04:46,725 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-04-03 06:04:46,725 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2023-04-03 06:04:46,725 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2023-04-03 06:04:46,725 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-04-03 06:04:46,725 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2023-04-03 06:04:46,725 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2023-04-03 06:04:46,725 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2023-04-03 06:04:47,613 INFO L236 CfgBuilder]: Building ICFG [2023-04-03 06:04:47,635 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-04-03 06:04:47,855 INFO L771 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2023-04-03 06:04:55,530 INFO L277 CfgBuilder]: Performing block encoding [2023-04-03 06:04:56,307 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-04-03 06:04:56,307 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-04-03 06:04:56,314 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.04 06:04:56 BoogieIcfgContainer [2023-04-03 06:04:56,314 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-04-03 06:04:56,316 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-04-03 06:04:56,317 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-04-03 06:04:56,319 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-04-03 06:04:56,320 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.04 06:04:41" (1/3) ... [2023-04-03 06:04:56,320 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2fd53a17 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.04 06:04:56, skipping insertion in model container [2023-04-03 06:04:56,320 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.04 06:04:45" (2/3) ... [2023-04-03 06:04:56,321 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2fd53a17 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.04 06:04:56, skipping insertion in model container [2023-04-03 06:04:56,321 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.04 06:04:56" (3/3) ... [2023-04-03 06:04:56,322 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-4.2-rc1.tar.xz-32_7a-drivers--usb--class--cdc-wdm.ko-entry_point.cil.out.i [2023-04-03 06:04:56,340 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-04-03 06:04:56,340 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-04-03 06:04:56,440 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-04-03 06:04:56,447 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;@1d473373, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-04-03 06:04:56,447 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-04-03 06:04:56,459 INFO L276 IsEmpty]: Start isEmpty. Operand has 1651 states, 879 states have (on average 1.2502844141069398) internal successors, (1099), 931 states have internal predecessors, (1099), 525 states have call successors, (525), 172 states have call predecessors, (525), 171 states have return successors, (519), 516 states have call predecessors, (519), 519 states have call successors, (519) [2023-04-03 06:04:56,496 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 199 [2023-04-03 06:04:56,497 INFO L187 NwaCegarLoop]: Found error trace [2023-04-03 06:04:56,498 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 7, 7, 7, 7, 7, 7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-03 06:04:56,498 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-03 06:04:56,502 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-03 06:04:56,503 INFO L85 PathProgramCache]: Analyzing trace with hash 769597154, now seen corresponding path program 1 times [2023-04-03 06:04:56,532 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-03 06:04:56,533 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1121301569] [2023-04-03 06:04:56,533 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-03 06:04:56,533 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-03 06:04:57,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-03 06:04:57,670 INFO L134 CoverageAnalysis]: Checked inductivity of 462 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 462 trivial. 0 not checked. [2023-04-03 06:04:57,670 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-03 06:04:57,670 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1121301569] [2023-04-03 06:04:57,672 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1121301569] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-03 06:04:57,672 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-03 06:04:57,672 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-04-03 06:04:57,674 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1783616546] [2023-04-03 06:04:57,675 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-03 06:04:57,683 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-04-03 06:04:57,684 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-03 06:04:57,722 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-04-03 06:04:57,724 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-04-03 06:04:57,729 INFO L87 Difference]: Start difference. First operand has 1651 states, 879 states have (on average 1.2502844141069398) internal successors, (1099), 931 states have internal predecessors, (1099), 525 states have call successors, (525), 172 states have call predecessors, (525), 171 states have return successors, (519), 516 states have call predecessors, (519), 519 states have call successors, (519) Second operand has 3 states, 3 states have (on average 14.333333333333334) internal successors, (43), 3 states have internal predecessors, (43), 2 states have call successors, (28), 2 states have call predecessors, (28), 1 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) [2023-04-03 06:04:59,425 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-03 06:04:59,425 INFO L93 Difference]: Finished difference Result 3494 states and 4785 transitions. [2023-04-03 06:04:59,433 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-04-03 06:04:59,434 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 14.333333333333334) internal successors, (43), 3 states have internal predecessors, (43), 2 states have call successors, (28), 2 states have call predecessors, (28), 1 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) Word has length 198 [2023-04-03 06:04:59,435 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-03 06:04:59,485 INFO L225 Difference]: With dead ends: 3494 [2023-04-03 06:04:59,485 INFO L226 Difference]: Without dead ends: 2309 [2023-04-03 06:04:59,503 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-04-03 06:04:59,507 INFO L413 NwaCegarLoop]: 1473 mSDtfsCounter, 1491 mSDsluCounter, 1444 mSDsCounter, 0 mSdLazyCounter, 294 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1491 SdHoareTripleChecker+Valid, 2917 SdHoareTripleChecker+Invalid, 297 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 294 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2023-04-03 06:04:59,508 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1491 Valid, 2917 Invalid, 297 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 294 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2023-04-03 06:04:59,530 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2309 states. [2023-04-03 06:04:59,698 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2309 to 2299. [2023-04-03 06:04:59,703 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2299 states, 1254 states have (on average 1.2551834130781498) internal successors, (1574), 1315 states have internal predecessors, (1574), 747 states have call successors, (747), 300 states have call predecessors, (747), 297 states have return successors, (731), 725 states have call predecessors, (731), 731 states have call successors, (731) [2023-04-03 06:04:59,719 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2299 states to 2299 states and 3052 transitions. [2023-04-03 06:04:59,722 INFO L78 Accepts]: Start accepts. Automaton has 2299 states and 3052 transitions. Word has length 198 [2023-04-03 06:04:59,724 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-03 06:04:59,724 INFO L495 AbstractCegarLoop]: Abstraction has 2299 states and 3052 transitions. [2023-04-03 06:04:59,724 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.333333333333334) internal successors, (43), 3 states have internal predecessors, (43), 2 states have call successors, (28), 2 states have call predecessors, (28), 1 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) [2023-04-03 06:04:59,724 INFO L276 IsEmpty]: Start isEmpty. Operand 2299 states and 3052 transitions. [2023-04-03 06:04:59,731 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 199 [2023-04-03 06:04:59,732 INFO L187 NwaCegarLoop]: Found error trace [2023-04-03 06:04:59,732 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 7, 7, 7, 7, 7, 7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-03 06:04:59,732 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-04-03 06:04:59,733 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-03 06:04:59,733 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-03 06:04:59,733 INFO L85 PathProgramCache]: Analyzing trace with hash -1039450243, now seen corresponding path program 1 times [2023-04-03 06:04:59,733 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-03 06:04:59,734 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [111323973] [2023-04-03 06:04:59,734 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-03 06:04:59,734 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-03 06:04:59,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-03 06:05:00,219 INFO L134 CoverageAnalysis]: Checked inductivity of 462 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 462 trivial. 0 not checked. [2023-04-03 06:05:00,219 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-03 06:05:00,220 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [111323973] [2023-04-03 06:05:00,220 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [111323973] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-03 06:05:00,220 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-03 06:05:00,220 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-04-03 06:05:00,220 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [314486296] [2023-04-03 06:05:00,220 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-03 06:05:00,222 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-04-03 06:05:00,223 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-03 06:05:00,223 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-04-03 06:05:00,223 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-04-03 06:05:00,224 INFO L87 Difference]: Start difference. First operand 2299 states and 3052 transitions. Second operand has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 2 states have call successors, (28), 2 states have call predecessors, (28), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2023-04-03 06:05:01,503 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-03 06:05:01,504 INFO L93 Difference]: Finished difference Result 5771 states and 7583 transitions. [2023-04-03 06:05:01,504 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-04-03 06:05:01,504 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 2 states have call successors, (28), 2 states have call predecessors, (28), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) Word has length 198 [2023-04-03 06:05:01,505 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-03 06:05:01,525 INFO L225 Difference]: With dead ends: 5771 [2023-04-03 06:05:01,525 INFO L226 Difference]: Without dead ends: 3523 [2023-04-03 06:05:01,535 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-04-03 06:05:01,536 INFO L413 NwaCegarLoop]: 1473 mSDtfsCounter, 862 mSDsluCounter, 1354 mSDsCounter, 0 mSdLazyCounter, 323 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 862 SdHoareTripleChecker+Valid, 2827 SdHoareTripleChecker+Invalid, 325 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 323 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2023-04-03 06:05:01,537 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [862 Valid, 2827 Invalid, 325 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 323 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2023-04-03 06:05:01,541 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3523 states. [2023-04-03 06:05:01,677 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3523 to 3491. [2023-04-03 06:05:01,684 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3491 states, 1899 states have (on average 1.2469720905739863) internal successors, (2368), 1978 states have internal predecessors, (2368), 1104 states have call successors, (1104), 490 states have call predecessors, (1104), 487 states have return successors, (1088), 1078 states have call predecessors, (1088), 1088 states have call successors, (1088) [2023-04-03 06:05:01,704 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3491 states to 3491 states and 4560 transitions. [2023-04-03 06:05:01,706 INFO L78 Accepts]: Start accepts. Automaton has 3491 states and 4560 transitions. Word has length 198 [2023-04-03 06:05:01,706 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-03 06:05:01,706 INFO L495 AbstractCegarLoop]: Abstraction has 3491 states and 4560 transitions. [2023-04-03 06:05:01,707 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 2 states have call successors, (28), 2 states have call predecessors, (28), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2023-04-03 06:05:01,707 INFO L276 IsEmpty]: Start isEmpty. Operand 3491 states and 4560 transitions. [2023-04-03 06:05:01,710 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 222 [2023-04-03 06:05:01,710 INFO L187 NwaCegarLoop]: Found error trace [2023-04-03 06:05:01,710 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 7, 7, 7, 7, 7, 7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-03 06:05:01,710 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-04-03 06:05:01,711 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-03 06:05:01,711 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-03 06:05:01,711 INFO L85 PathProgramCache]: Analyzing trace with hash -1233800042, now seen corresponding path program 1 times [2023-04-03 06:05:01,711 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-03 06:05:01,712 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [112588724] [2023-04-03 06:05:01,712 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-03 06:05:01,712 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-03 06:05:01,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-03 06:05:02,016 INFO L134 CoverageAnalysis]: Checked inductivity of 462 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 462 trivial. 0 not checked. [2023-04-03 06:05:02,017 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-03 06:05:02,017 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [112588724] [2023-04-03 06:05:02,017 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [112588724] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-03 06:05:02,017 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-03 06:05:02,017 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-04-03 06:05:02,017 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1265307998] [2023-04-03 06:05:02,018 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-03 06:05:02,019 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-04-03 06:05:02,019 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-03 06:05:02,020 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-04-03 06:05:02,020 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-04-03 06:05:02,020 INFO L87 Difference]: Start difference. First operand 3491 states and 4560 transitions. Second operand has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 2 states have call successors, (33), 2 states have call predecessors, (33), 1 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) [2023-04-03 06:05:03,826 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-03 06:05:03,827 INFO L93 Difference]: Finished difference Result 8634 states and 11283 transitions. [2023-04-03 06:05:03,827 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-04-03 06:05:03,827 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 2 states have call successors, (33), 2 states have call predecessors, (33), 1 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) Word has length 221 [2023-04-03 06:05:03,828 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-03 06:05:03,859 INFO L225 Difference]: With dead ends: 8634 [2023-04-03 06:05:03,859 INFO L226 Difference]: Without dead ends: 5202 [2023-04-03 06:05:03,873 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-04-03 06:05:03,874 INFO L413 NwaCegarLoop]: 1980 mSDtfsCounter, 1068 mSDsluCounter, 1370 mSDsCounter, 0 mSdLazyCounter, 351 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1068 SdHoareTripleChecker+Valid, 3350 SdHoareTripleChecker+Invalid, 354 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 351 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2023-04-03 06:05:03,875 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1068 Valid, 3350 Invalid, 354 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 351 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2023-04-03 06:05:03,881 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5202 states. [2023-04-03 06:05:04,085 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5202 to 5155. [2023-04-03 06:05:04,096 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5155 states, 2858 states have (on average 1.254373687893632) internal successors, (3585), 2979 states have internal predecessors, (3585), 1584 states have call successors, (1584), 715 states have call predecessors, (1584), 712 states have return successors, (1568), 1552 states have call predecessors, (1568), 1568 states have call successors, (1568) [2023-04-03 06:05:04,127 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5155 states to 5155 states and 6737 transitions. [2023-04-03 06:05:04,129 INFO L78 Accepts]: Start accepts. Automaton has 5155 states and 6737 transitions. Word has length 221 [2023-04-03 06:05:04,130 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-03 06:05:04,130 INFO L495 AbstractCegarLoop]: Abstraction has 5155 states and 6737 transitions. [2023-04-03 06:05:04,131 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 2 states have call successors, (33), 2 states have call predecessors, (33), 1 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) [2023-04-03 06:05:04,131 INFO L276 IsEmpty]: Start isEmpty. Operand 5155 states and 6737 transitions. [2023-04-03 06:05:04,133 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 219 [2023-04-03 06:05:04,133 INFO L187 NwaCegarLoop]: Found error trace [2023-04-03 06:05:04,133 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-03 06:05:04,134 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-04-03 06:05:04,134 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-03 06:05:04,134 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-03 06:05:04,134 INFO L85 PathProgramCache]: Analyzing trace with hash 367493536, now seen corresponding path program 1 times [2023-04-03 06:05:04,134 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-03 06:05:04,134 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [536453114] [2023-04-03 06:05:04,135 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-03 06:05:04,135 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-03 06:05:04,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-03 06:05:04,488 INFO L134 CoverageAnalysis]: Checked inductivity of 532 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 532 trivial. 0 not checked. [2023-04-03 06:05:04,489 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-03 06:05:04,489 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [536453114] [2023-04-03 06:05:04,489 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [536453114] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-03 06:05:04,489 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-03 06:05:04,489 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-04-03 06:05:04,489 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [679662164] [2023-04-03 06:05:04,489 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-03 06:05:04,490 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-04-03 06:05:04,490 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-03 06:05:04,490 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-04-03 06:05:04,491 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-04-03 06:05:04,491 INFO L87 Difference]: Start difference. First operand 5155 states and 6737 transitions. Second operand has 3 states, 3 states have (on average 16.666666666666668) internal successors, (50), 3 states have internal predecessors, (50), 3 states have call successors, (30), 3 states have call predecessors, (30), 2 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) [2023-04-03 06:05:05,325 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-03 06:05:05,325 INFO L93 Difference]: Finished difference Result 5157 states and 6738 transitions. [2023-04-03 06:05:05,325 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-04-03 06:05:05,326 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 16.666666666666668) internal successors, (50), 3 states have internal predecessors, (50), 3 states have call successors, (30), 3 states have call predecessors, (30), 2 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) Word has length 218 [2023-04-03 06:05:05,326 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-03 06:05:05,361 INFO L225 Difference]: With dead ends: 5157 [2023-04-03 06:05:05,361 INFO L226 Difference]: Without dead ends: 5154 [2023-04-03 06:05:05,366 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-04-03 06:05:05,369 INFO L413 NwaCegarLoop]: 1451 mSDtfsCounter, 1541 mSDsluCounter, 1 mSDsCounter, 0 mSdLazyCounter, 142 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1541 SdHoareTripleChecker+Valid, 1452 SdHoareTripleChecker+Invalid, 142 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 142 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-04-03 06:05:05,370 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1541 Valid, 1452 Invalid, 142 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 142 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-04-03 06:05:05,379 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5154 states. [2023-04-03 06:05:05,692 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5154 to 5154. [2023-04-03 06:05:05,714 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5154 states, 2858 states have (on average 1.2540237928621414) internal successors, (3584), 2978 states have internal predecessors, (3584), 1583 states have call successors, (1583), 715 states have call predecessors, (1583), 712 states have return successors, (1568), 1552 states have call predecessors, (1568), 1568 states have call successors, (1568) [2023-04-03 06:05:05,736 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5154 states to 5154 states and 6735 transitions. [2023-04-03 06:05:05,737 INFO L78 Accepts]: Start accepts. Automaton has 5154 states and 6735 transitions. Word has length 218 [2023-04-03 06:05:05,740 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-03 06:05:05,740 INFO L495 AbstractCegarLoop]: Abstraction has 5154 states and 6735 transitions. [2023-04-03 06:05:05,741 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.666666666666668) internal successors, (50), 3 states have internal predecessors, (50), 3 states have call successors, (30), 3 states have call predecessors, (30), 2 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) [2023-04-03 06:05:05,741 INFO L276 IsEmpty]: Start isEmpty. Operand 5154 states and 6735 transitions. [2023-04-03 06:05:05,743 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 220 [2023-04-03 06:05:05,743 INFO L187 NwaCegarLoop]: Found error trace [2023-04-03 06:05:05,743 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-03 06:05:05,743 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-04-03 06:05:05,743 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-03 06:05:05,744 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-03 06:05:05,744 INFO L85 PathProgramCache]: Analyzing trace with hash -1493603523, now seen corresponding path program 1 times [2023-04-03 06:05:05,744 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-03 06:05:05,744 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [997358295] [2023-04-03 06:05:05,744 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-03 06:05:05,744 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-03 06:05:05,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-03 06:05:06,063 INFO L134 CoverageAnalysis]: Checked inductivity of 532 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 532 trivial. 0 not checked. [2023-04-03 06:05:06,063 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-03 06:05:06,063 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [997358295] [2023-04-03 06:05:06,063 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [997358295] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-03 06:05:06,064 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-03 06:05:06,064 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-04-03 06:05:06,064 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [121425126] [2023-04-03 06:05:06,064 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-03 06:05:06,064 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-04-03 06:05:06,064 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-03 06:05:06,065 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-04-03 06:05:06,065 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-04-03 06:05:06,065 INFO L87 Difference]: Start difference. First operand 5154 states and 6735 transitions. Second operand has 3 states, 3 states have (on average 17.0) internal successors, (51), 3 states have internal predecessors, (51), 3 states have call successors, (30), 3 states have call predecessors, (30), 2 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) [2023-04-03 06:05:07,042 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-03 06:05:07,043 INFO L93 Difference]: Finished difference Result 5156 states and 6736 transitions. [2023-04-03 06:05:07,043 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-04-03 06:05:07,043 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 17.0) internal successors, (51), 3 states have internal predecessors, (51), 3 states have call successors, (30), 3 states have call predecessors, (30), 2 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) Word has length 219 [2023-04-03 06:05:07,044 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-03 06:05:07,087 INFO L225 Difference]: With dead ends: 5156 [2023-04-03 06:05:07,087 INFO L226 Difference]: Without dead ends: 5153 [2023-04-03 06:05:07,108 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-04-03 06:05:07,108 INFO L413 NwaCegarLoop]: 1449 mSDtfsCounter, 1538 mSDsluCounter, 1 mSDsCounter, 0 mSdLazyCounter, 142 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1538 SdHoareTripleChecker+Valid, 1450 SdHoareTripleChecker+Invalid, 142 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 142 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-04-03 06:05:07,109 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1538 Valid, 1450 Invalid, 142 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 142 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-04-03 06:05:07,114 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5153 states. [2023-04-03 06:05:07,429 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5153 to 5153. [2023-04-03 06:05:07,438 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5153 states, 2858 states have (on average 1.2536738978306508) internal successors, (3583), 2977 states have internal predecessors, (3583), 1582 states have call successors, (1582), 715 states have call predecessors, (1582), 712 states have return successors, (1568), 1552 states have call predecessors, (1568), 1568 states have call successors, (1568) [2023-04-03 06:05:07,494 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5153 states to 5153 states and 6733 transitions. [2023-04-03 06:05:07,495 INFO L78 Accepts]: Start accepts. Automaton has 5153 states and 6733 transitions. Word has length 219 [2023-04-03 06:05:07,496 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-03 06:05:07,496 INFO L495 AbstractCegarLoop]: Abstraction has 5153 states and 6733 transitions. [2023-04-03 06:05:07,496 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.0) internal successors, (51), 3 states have internal predecessors, (51), 3 states have call successors, (30), 3 states have call predecessors, (30), 2 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) [2023-04-03 06:05:07,496 INFO L276 IsEmpty]: Start isEmpty. Operand 5153 states and 6733 transitions. [2023-04-03 06:05:07,499 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 221 [2023-04-03 06:05:07,499 INFO L187 NwaCegarLoop]: Found error trace [2023-04-03 06:05:07,500 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-03 06:05:07,500 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-04-03 06:05:07,500 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-03 06:05:07,500 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-03 06:05:07,500 INFO L85 PathProgramCache]: Analyzing trace with hash 941934659, now seen corresponding path program 1 times [2023-04-03 06:05:07,502 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-03 06:05:07,503 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [680043732] [2023-04-03 06:05:07,503 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-03 06:05:07,503 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-03 06:05:07,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-03 06:05:08,066 INFO L134 CoverageAnalysis]: Checked inductivity of 532 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 532 trivial. 0 not checked. [2023-04-03 06:05:08,066 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-03 06:05:08,067 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [680043732] [2023-04-03 06:05:08,067 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [680043732] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-03 06:05:08,067 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-03 06:05:08,067 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-04-03 06:05:08,067 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1065234776] [2023-04-03 06:05:08,067 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-03 06:05:08,067 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-04-03 06:05:08,068 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-03 06:05:08,068 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-04-03 06:05:08,068 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-04-03 06:05:08,068 INFO L87 Difference]: Start difference. First operand 5153 states and 6733 transitions. Second operand has 3 states, 3 states have (on average 17.333333333333332) internal successors, (52), 3 states have internal predecessors, (52), 3 states have call successors, (30), 3 states have call predecessors, (30), 2 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) [2023-04-03 06:05:09,194 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-03 06:05:09,194 INFO L93 Difference]: Finished difference Result 5155 states and 6734 transitions. [2023-04-03 06:05:09,194 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-04-03 06:05:09,195 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 17.333333333333332) internal successors, (52), 3 states have internal predecessors, (52), 3 states have call successors, (30), 3 states have call predecessors, (30), 2 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) Word has length 220 [2023-04-03 06:05:09,195 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-03 06:05:09,267 INFO L225 Difference]: With dead ends: 5155 [2023-04-03 06:05:09,268 INFO L226 Difference]: Without dead ends: 5152 [2023-04-03 06:05:09,272 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-04-03 06:05:09,273 INFO L413 NwaCegarLoop]: 1447 mSDtfsCounter, 1535 mSDsluCounter, 1 mSDsCounter, 0 mSdLazyCounter, 142 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1535 SdHoareTripleChecker+Valid, 1448 SdHoareTripleChecker+Invalid, 142 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 142 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2023-04-03 06:05:09,273 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1535 Valid, 1448 Invalid, 142 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 142 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2023-04-03 06:05:09,293 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5152 states. [2023-04-03 06:05:09,699 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5152 to 5152. [2023-04-03 06:05:09,707 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5152 states, 2858 states have (on average 1.2533240027991603) internal successors, (3582), 2976 states have internal predecessors, (3582), 1581 states have call successors, (1581), 715 states have call predecessors, (1581), 712 states have return successors, (1568), 1552 states have call predecessors, (1568), 1568 states have call successors, (1568) [2023-04-03 06:05:09,765 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5152 states to 5152 states and 6731 transitions. [2023-04-03 06:05:09,766 INFO L78 Accepts]: Start accepts. Automaton has 5152 states and 6731 transitions. Word has length 220 [2023-04-03 06:05:09,767 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-03 06:05:09,767 INFO L495 AbstractCegarLoop]: Abstraction has 5152 states and 6731 transitions. [2023-04-03 06:05:09,767 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.333333333333332) internal successors, (52), 3 states have internal predecessors, (52), 3 states have call successors, (30), 3 states have call predecessors, (30), 2 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) [2023-04-03 06:05:09,767 INFO L276 IsEmpty]: Start isEmpty. Operand 5152 states and 6731 transitions. [2023-04-03 06:05:09,770 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 222 [2023-04-03 06:05:09,770 INFO L187 NwaCegarLoop]: Found error trace [2023-04-03 06:05:09,770 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-03 06:05:09,770 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-04-03 06:05:09,770 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-03 06:05:09,770 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-03 06:05:09,771 INFO L85 PathProgramCache]: Analyzing trace with hash -865788160, now seen corresponding path program 1 times [2023-04-03 06:05:09,771 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-03 06:05:09,771 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1999286707] [2023-04-03 06:05:09,771 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-03 06:05:09,771 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-03 06:05:10,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-03 06:05:10,655 INFO L134 CoverageAnalysis]: Checked inductivity of 532 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 532 trivial. 0 not checked. [2023-04-03 06:05:10,656 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-03 06:05:10,656 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1999286707] [2023-04-03 06:05:10,656 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1999286707] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-03 06:05:10,656 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-03 06:05:10,656 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-04-03 06:05:10,656 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1530497340] [2023-04-03 06:05:10,656 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-03 06:05:10,658 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-04-03 06:05:10,658 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-03 06:05:10,658 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-04-03 06:05:10,658 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-04-03 06:05:10,659 INFO L87 Difference]: Start difference. First operand 5152 states and 6731 transitions. Second operand has 3 states, 3 states have (on average 17.666666666666668) internal successors, (53), 3 states have internal predecessors, (53), 3 states have call successors, (30), 3 states have call predecessors, (30), 2 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) [2023-04-03 06:05:12,928 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-03 06:05:12,928 INFO L93 Difference]: Finished difference Result 14591 states and 19013 transitions. [2023-04-03 06:05:12,928 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-04-03 06:05:12,928 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 17.666666666666668) internal successors, (53), 3 states have internal predecessors, (53), 3 states have call successors, (30), 3 states have call predecessors, (30), 2 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) Word has length 221 [2023-04-03 06:05:12,929 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-03 06:05:12,992 INFO L225 Difference]: With dead ends: 14591 [2023-04-03 06:05:12,992 INFO L226 Difference]: Without dead ends: 9500 [2023-04-03 06:05:13,020 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-04-03 06:05:13,021 INFO L413 NwaCegarLoop]: 1629 mSDtfsCounter, 1315 mSDsluCounter, 1324 mSDsCounter, 0 mSdLazyCounter, 303 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1315 SdHoareTripleChecker+Valid, 2953 SdHoareTripleChecker+Invalid, 310 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 303 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2023-04-03 06:05:13,021 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1315 Valid, 2953 Invalid, 310 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 303 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2023-04-03 06:05:13,030 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9500 states. [2023-04-03 06:05:13,651 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9500 to 9477. [2023-04-03 06:05:13,666 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9477 states, 5292 states have (on average 1.250755857898715) internal successors, (6619), 5501 states have internal predecessors, (6619), 2846 states have call successors, (2846), 1368 states have call predecessors, (2846), 1338 states have return successors, (2846), 2763 states have call predecessors, (2846), 2830 states have call successors, (2846) [2023-04-03 06:05:13,704 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9477 states to 9477 states and 12311 transitions. [2023-04-03 06:05:13,706 INFO L78 Accepts]: Start accepts. Automaton has 9477 states and 12311 transitions. Word has length 221 [2023-04-03 06:05:13,707 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-03 06:05:13,707 INFO L495 AbstractCegarLoop]: Abstraction has 9477 states and 12311 transitions. [2023-04-03 06:05:13,707 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.666666666666668) internal successors, (53), 3 states have internal predecessors, (53), 3 states have call successors, (30), 3 states have call predecessors, (30), 2 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) [2023-04-03 06:05:13,707 INFO L276 IsEmpty]: Start isEmpty. Operand 9477 states and 12311 transitions. [2023-04-03 06:05:13,709 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 223 [2023-04-03 06:05:13,709 INFO L187 NwaCegarLoop]: Found error trace [2023-04-03 06:05:13,710 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-03 06:05:13,710 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-04-03 06:05:13,710 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-03 06:05:13,710 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-03 06:05:13,710 INFO L85 PathProgramCache]: Analyzing trace with hash -1070615834, now seen corresponding path program 1 times [2023-04-03 06:05:13,711 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-03 06:05:13,711 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [308859690] [2023-04-03 06:05:13,711 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-03 06:05:13,711 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-03 06:05:13,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-03 06:05:14,316 INFO L134 CoverageAnalysis]: Checked inductivity of 532 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 532 trivial. 0 not checked. [2023-04-03 06:05:14,317 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-03 06:05:14,317 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [308859690] [2023-04-03 06:05:14,317 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [308859690] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-03 06:05:14,317 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-03 06:05:14,317 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-04-03 06:05:14,317 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1215705433] [2023-04-03 06:05:14,317 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-03 06:05:14,318 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-04-03 06:05:14,318 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-03 06:05:14,318 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-04-03 06:05:14,319 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-04-03 06:05:14,319 INFO L87 Difference]: Start difference. First operand 9477 states and 12311 transitions. Second operand has 3 states, 3 states have (on average 18.0) internal successors, (54), 3 states have internal predecessors, (54), 3 states have call successors, (30), 3 states have call predecessors, (30), 2 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) [2023-04-03 06:05:16,628 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-03 06:05:16,628 INFO L93 Difference]: Finished difference Result 10283 states and 12989 transitions. [2023-04-03 06:05:16,632 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-04-03 06:05:16,632 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 18.0) internal successors, (54), 3 states have internal predecessors, (54), 3 states have call successors, (30), 3 states have call predecessors, (30), 2 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) Word has length 222 [2023-04-03 06:05:16,632 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-03 06:05:16,717 INFO L225 Difference]: With dead ends: 10283 [2023-04-03 06:05:16,717 INFO L226 Difference]: Without dead ends: 10279 [2023-04-03 06:05:16,736 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-04-03 06:05:16,738 INFO L413 NwaCegarLoop]: 1472 mSDtfsCounter, 1283 mSDsluCounter, 312 mSDsCounter, 0 mSdLazyCounter, 189 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1283 SdHoareTripleChecker+Valid, 1784 SdHoareTripleChecker+Invalid, 191 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 189 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2023-04-03 06:05:16,738 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1283 Valid, 1784 Invalid, 191 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 189 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2023-04-03 06:05:16,762 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10279 states. [2023-04-03 06:05:17,665 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10279 to 10273. [2023-04-03 06:05:17,698 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10273 states, 5714 states have (on average 1.2338116905845293) internal successors, (7050), 5917 states have internal predecessors, (7050), 2958 states have call successors, (2958), 1634 states have call predecessors, (2958), 1600 states have return successors, (2960), 2877 states have call predecessors, (2960), 2944 states have call successors, (2960) [2023-04-03 06:05:17,735 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10273 states to 10273 states and 12968 transitions. [2023-04-03 06:05:17,736 INFO L78 Accepts]: Start accepts. Automaton has 10273 states and 12968 transitions. Word has length 222 [2023-04-03 06:05:17,737 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-03 06:05:17,737 INFO L495 AbstractCegarLoop]: Abstraction has 10273 states and 12968 transitions. [2023-04-03 06:05:17,737 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 18.0) internal successors, (54), 3 states have internal predecessors, (54), 3 states have call successors, (30), 3 states have call predecessors, (30), 2 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) [2023-04-03 06:05:17,737 INFO L276 IsEmpty]: Start isEmpty. Operand 10273 states and 12968 transitions. [2023-04-03 06:05:17,739 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 224 [2023-04-03 06:05:17,739 INFO L187 NwaCegarLoop]: Found error trace [2023-04-03 06:05:17,739 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-03 06:05:17,739 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-04-03 06:05:17,739 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-03 06:05:17,740 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-03 06:05:17,740 INFO L85 PathProgramCache]: Analyzing trace with hash 1169665731, now seen corresponding path program 1 times [2023-04-03 06:05:17,740 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-03 06:05:17,740 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1368429994] [2023-04-03 06:05:17,740 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-03 06:05:17,740 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-03 06:05:17,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-03 06:05:18,597 INFO L134 CoverageAnalysis]: Checked inductivity of 532 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 532 trivial. 0 not checked. [2023-04-03 06:05:18,598 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-03 06:05:18,598 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1368429994] [2023-04-03 06:05:18,598 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1368429994] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-03 06:05:18,598 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-03 06:05:18,598 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-04-03 06:05:18,598 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2055607262] [2023-04-03 06:05:18,598 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-03 06:05:18,599 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-04-03 06:05:18,599 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-03 06:05:18,599 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-04-03 06:05:18,599 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-04-03 06:05:18,600 INFO L87 Difference]: Start difference. First operand 10273 states and 12968 transitions. Second operand has 3 states, 3 states have (on average 18.333333333333332) internal successors, (55), 3 states have internal predecessors, (55), 3 states have call successors, (30), 3 states have call predecessors, (30), 2 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) [2023-04-03 06:05:22,397 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-03 06:05:22,398 INFO L93 Difference]: Finished difference Result 28371 states and 35958 transitions. [2023-04-03 06:05:22,413 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-04-03 06:05:22,413 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 18.333333333333332) internal successors, (55), 3 states have internal predecessors, (55), 3 states have call successors, (30), 3 states have call predecessors, (30), 2 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) Word has length 223 [2023-04-03 06:05:22,413 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-03 06:05:22,714 INFO L225 Difference]: With dead ends: 28371 [2023-04-03 06:05:22,714 INFO L226 Difference]: Without dead ends: 18141 [2023-04-03 06:05:22,848 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-04-03 06:05:22,848 INFO L413 NwaCegarLoop]: 1470 mSDtfsCounter, 1363 mSDsluCounter, 1230 mSDsCounter, 0 mSdLazyCounter, 282 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1363 SdHoareTripleChecker+Valid, 2700 SdHoareTripleChecker+Invalid, 288 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 282 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2023-04-03 06:05:22,849 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1363 Valid, 2700 Invalid, 288 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 282 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2023-04-03 06:05:22,895 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18141 states. [2023-04-03 06:05:24,587 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18141 to 18098. [2023-04-03 06:05:24,637 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18098 states, 10170 states have (on average 1.2417895771878074) internal successors, (12629), 10519 states have internal predecessors, (12629), 5128 states have call successors, (5128), 2930 states have call predecessors, (5128), 2799 states have return successors, (5191), 4900 states have call predecessors, (5191), 5111 states have call successors, (5191) [2023-04-03 06:05:24,834 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18098 states to 18098 states and 22948 transitions. [2023-04-03 06:05:24,847 INFO L78 Accepts]: Start accepts. Automaton has 18098 states and 22948 transitions. Word has length 223 [2023-04-03 06:05:24,848 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-03 06:05:24,848 INFO L495 AbstractCegarLoop]: Abstraction has 18098 states and 22948 transitions. [2023-04-03 06:05:24,848 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 18.333333333333332) internal successors, (55), 3 states have internal predecessors, (55), 3 states have call successors, (30), 3 states have call predecessors, (30), 2 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) [2023-04-03 06:05:24,848 INFO L276 IsEmpty]: Start isEmpty. Operand 18098 states and 22948 transitions. [2023-04-03 06:05:24,871 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 283 [2023-04-03 06:05:24,871 INFO L187 NwaCegarLoop]: Found error trace [2023-04-03 06:05:24,871 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-03 06:05:24,871 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-04-03 06:05:24,872 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-03 06:05:24,872 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-03 06:05:24,872 INFO L85 PathProgramCache]: Analyzing trace with hash -1553281389, now seen corresponding path program 1 times [2023-04-03 06:05:24,872 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-03 06:05:24,872 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1668645580] [2023-04-03 06:05:24,872 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-03 06:05:24,873 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-03 06:05:25,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-03 06:05:25,796 INFO L134 CoverageAnalysis]: Checked inductivity of 705 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 702 trivial. 0 not checked. [2023-04-03 06:05:25,796 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-03 06:05:25,796 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1668645580] [2023-04-03 06:05:25,796 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1668645580] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-03 06:05:25,796 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-03 06:05:25,796 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-04-03 06:05:25,797 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [321976030] [2023-04-03 06:05:25,797 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-03 06:05:25,797 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-04-03 06:05:25,797 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-03 06:05:25,798 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-04-03 06:05:25,798 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-04-03 06:05:25,798 INFO L87 Difference]: Start difference. First operand 18098 states and 22948 transitions. Second operand has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 states have internal predecessors, (78), 3 states have call successors, (40), 2 states have call predecessors, (40), 1 states have return successors, (35), 3 states have call predecessors, (35), 3 states have call successors, (35) [2023-04-03 06:05:30,847 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-03 06:05:30,848 INFO L93 Difference]: Finished difference Result 44903 states and 56873 transitions. [2023-04-03 06:05:30,848 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-04-03 06:05:30,861 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 states have internal predecessors, (78), 3 states have call successors, (40), 2 states have call predecessors, (40), 1 states have return successors, (35), 3 states have call predecessors, (35), 3 states have call successors, (35) Word has length 282 [2023-04-03 06:05:30,868 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-03 06:05:31,055 INFO L225 Difference]: With dead ends: 44903 [2023-04-03 06:05:31,056 INFO L226 Difference]: Without dead ends: 26866 [2023-04-03 06:05:31,130 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-04-03 06:05:31,131 INFO L413 NwaCegarLoop]: 2101 mSDtfsCounter, 1188 mSDsluCounter, 1302 mSDsCounter, 0 mSdLazyCounter, 401 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1188 SdHoareTripleChecker+Valid, 3403 SdHoareTripleChecker+Invalid, 421 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 401 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2023-04-03 06:05:31,132 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1188 Valid, 3403 Invalid, 421 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [20 Valid, 401 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time] [2023-04-03 06:05:31,159 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26866 states. [2023-04-03 06:05:33,763 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26866 to 26796. [2023-04-03 06:05:33,878 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26796 states, 15194 states have (on average 1.2375937870211926) internal successors, (18804), 15719 states have internal predecessors, (18804), 7422 states have call successors, (7422), 4362 states have call predecessors, (7422), 4179 states have return successors, (7497), 7100 states have call predecessors, (7497), 7405 states have call successors, (7497) [2023-04-03 06:05:34,174 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26796 states to 26796 states and 33723 transitions. [2023-04-03 06:05:34,184 INFO L78 Accepts]: Start accepts. Automaton has 26796 states and 33723 transitions. Word has length 282 [2023-04-03 06:05:34,186 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-03 06:05:34,186 INFO L495 AbstractCegarLoop]: Abstraction has 26796 states and 33723 transitions. [2023-04-03 06:05:34,201 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 states have internal predecessors, (78), 3 states have call successors, (40), 2 states have call predecessors, (40), 1 states have return successors, (35), 3 states have call predecessors, (35), 3 states have call successors, (35) [2023-04-03 06:05:34,201 INFO L276 IsEmpty]: Start isEmpty. Operand 26796 states and 33723 transitions. [2023-04-03 06:05:34,232 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 285 [2023-04-03 06:05:34,232 INFO L187 NwaCegarLoop]: Found error trace [2023-04-03 06:05:34,232 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-03 06:05:34,232 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-04-03 06:05:34,232 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-03 06:05:34,233 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-03 06:05:34,233 INFO L85 PathProgramCache]: Analyzing trace with hash 204664204, now seen corresponding path program 1 times [2023-04-03 06:05:34,234 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-03 06:05:34,234 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1867262841] [2023-04-03 06:05:34,234 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-03 06:05:34,234 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-03 06:05:34,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-03 06:05:34,804 INFO L134 CoverageAnalysis]: Checked inductivity of 535 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 532 trivial. 0 not checked. [2023-04-03 06:05:34,805 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-03 06:05:34,805 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1867262841] [2023-04-03 06:05:34,805 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1867262841] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-03 06:05:34,805 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-03 06:05:34,805 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-04-03 06:05:34,805 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1859158928] [2023-04-03 06:05:34,805 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-03 06:05:34,806 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-04-03 06:05:34,806 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-03 06:05:34,806 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-04-03 06:05:34,806 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-04-03 06:05:34,807 INFO L87 Difference]: Start difference. First operand 26796 states and 33723 transitions. Second operand has 3 states, 3 states have (on average 30.666666666666668) internal successors, (92), 3 states have internal predecessors, (92), 2 states have call successors, (43), 2 states have call predecessors, (43), 1 states have return successors, (38), 2 states have call predecessors, (38), 2 states have call successors, (38) [2023-04-03 06:05:38,269 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-03 06:05:38,269 INFO L93 Difference]: Finished difference Result 40554 states and 51007 transitions. [2023-04-03 06:05:38,272 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-04-03 06:05:38,272 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 30.666666666666668) internal successors, (92), 3 states have internal predecessors, (92), 2 states have call successors, (43), 2 states have call predecessors, (43), 1 states have return successors, (38), 2 states have call predecessors, (38), 2 states have call successors, (38) Word has length 284 [2023-04-03 06:05:38,274 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-03 06:05:38,403 INFO L225 Difference]: With dead ends: 40554 [2023-04-03 06:05:38,403 INFO L226 Difference]: Without dead ends: 13816 [2023-04-03 06:05:38,530 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-04-03 06:05:38,531 INFO L413 NwaCegarLoop]: 1454 mSDtfsCounter, 12 mSDsluCounter, 1439 mSDsCounter, 0 mSdLazyCounter, 286 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 2893 SdHoareTripleChecker+Invalid, 287 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 286 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2023-04-03 06:05:38,531 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 2893 Invalid, 287 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 286 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2023-04-03 06:05:38,553 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13816 states. [2023-04-03 06:05:39,906 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13816 to 13557. [2023-04-03 06:05:39,939 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13557 states, 7691 states have (on average 1.240800936159147) internal successors, (9543), 7960 states have internal predecessors, (9543), 3754 states have call successors, (3754), 2207 states have call predecessors, (3754), 2111 states have return successors, (3783), 3584 states have call predecessors, (3783), 3737 states have call successors, (3783) [2023-04-03 06:05:40,053 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13557 states to 13557 states and 17080 transitions. [2023-04-03 06:05:40,079 INFO L78 Accepts]: Start accepts. Automaton has 13557 states and 17080 transitions. Word has length 284 [2023-04-03 06:05:40,080 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-03 06:05:40,080 INFO L495 AbstractCegarLoop]: Abstraction has 13557 states and 17080 transitions. [2023-04-03 06:05:40,080 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 30.666666666666668) internal successors, (92), 3 states have internal predecessors, (92), 2 states have call successors, (43), 2 states have call predecessors, (43), 1 states have return successors, (38), 2 states have call predecessors, (38), 2 states have call successors, (38) [2023-04-03 06:05:40,080 INFO L276 IsEmpty]: Start isEmpty. Operand 13557 states and 17080 transitions. [2023-04-03 06:05:40,086 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 301 [2023-04-03 06:05:40,087 INFO L187 NwaCegarLoop]: Found error trace [2023-04-03 06:05:40,087 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-03 06:05:40,087 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-04-03 06:05:40,087 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-03 06:05:40,087 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-03 06:05:40,088 INFO L85 PathProgramCache]: Analyzing trace with hash 1834061168, now seen corresponding path program 1 times [2023-04-03 06:05:40,088 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-03 06:05:40,088 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1144260034] [2023-04-03 06:05:40,088 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-03 06:05:40,088 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-03 06:05:40,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-03 06:05:40,960 INFO L134 CoverageAnalysis]: Checked inductivity of 705 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 705 trivial. 0 not checked. [2023-04-03 06:05:40,960 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-03 06:05:40,960 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1144260034] [2023-04-03 06:05:40,960 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1144260034] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-03 06:05:40,960 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-03 06:05:40,960 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-04-03 06:05:40,961 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [809854021] [2023-04-03 06:05:40,962 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-03 06:05:40,962 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-04-03 06:05:40,963 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-03 06:05:40,963 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-04-03 06:05:40,963 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-04-03 06:05:40,963 INFO L87 Difference]: Start difference. First operand 13557 states and 17080 transitions. Second operand has 3 states, 3 states have (on average 28.666666666666668) internal successors, (86), 3 states have internal predecessors, (86), 3 states have call successors, (44), 3 states have call predecessors, (44), 2 states have return successors, (39), 2 states have call predecessors, (39), 2 states have call successors, (39) [2023-04-03 06:05:43,163 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-03 06:05:43,164 INFO L93 Difference]: Finished difference Result 13565 states and 17086 transitions. [2023-04-03 06:05:43,164 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-04-03 06:05:43,164 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 28.666666666666668) internal successors, (86), 3 states have internal predecessors, (86), 3 states have call successors, (44), 3 states have call predecessors, (44), 2 states have return successors, (39), 2 states have call predecessors, (39), 2 states have call successors, (39) Word has length 300 [2023-04-03 06:05:43,165 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-03 06:05:43,212 INFO L225 Difference]: With dead ends: 13565 [2023-04-03 06:05:43,213 INFO L226 Difference]: Without dead ends: 13562 [2023-04-03 06:05:43,219 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-04-03 06:05:43,220 INFO L413 NwaCegarLoop]: 1469 mSDtfsCounter, 338 mSDsluCounter, 1205 mSDsCounter, 0 mSdLazyCounter, 299 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 338 SdHoareTripleChecker+Valid, 2674 SdHoareTripleChecker+Invalid, 299 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 299 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2023-04-03 06:05:43,220 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [338 Valid, 2674 Invalid, 299 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 299 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2023-04-03 06:05:43,230 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13562 states. [2023-04-03 06:05:43,975 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13562 to 13556. [2023-04-03 06:05:43,989 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13556 states, 7691 states have (on average 1.2391106488102976) internal successors, (9530), 7959 states have internal predecessors, (9530), 3753 states have call successors, (3753), 2207 states have call predecessors, (3753), 2111 states have return successors, (3783), 3584 states have call predecessors, (3783), 3737 states have call successors, (3783) [2023-04-03 06:05:44,029 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13556 states to 13556 states and 17066 transitions. [2023-04-03 06:05:44,031 INFO L78 Accepts]: Start accepts. Automaton has 13556 states and 17066 transitions. Word has length 300 [2023-04-03 06:05:44,032 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-03 06:05:44,032 INFO L495 AbstractCegarLoop]: Abstraction has 13556 states and 17066 transitions. [2023-04-03 06:05:44,032 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 28.666666666666668) internal successors, (86), 3 states have internal predecessors, (86), 3 states have call successors, (44), 3 states have call predecessors, (44), 2 states have return successors, (39), 2 states have call predecessors, (39), 2 states have call successors, (39) [2023-04-03 06:05:44,032 INFO L276 IsEmpty]: Start isEmpty. Operand 13556 states and 17066 transitions. [2023-04-03 06:05:44,039 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 312 [2023-04-03 06:05:44,039 INFO L187 NwaCegarLoop]: Found error trace [2023-04-03 06:05:44,039 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-03 06:05:44,039 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-04-03 06:05:44,040 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-03 06:05:44,040 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-03 06:05:44,040 INFO L85 PathProgramCache]: Analyzing trace with hash -1362017319, now seen corresponding path program 1 times [2023-04-03 06:05:44,040 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-03 06:05:44,040 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1000976705] [2023-04-03 06:05:44,040 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-03 06:05:44,040 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-03 06:05:44,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-03 06:05:44,399 INFO L134 CoverageAnalysis]: Checked inductivity of 705 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 702 trivial. 0 not checked. [2023-04-03 06:05:44,399 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-03 06:05:44,399 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1000976705] [2023-04-03 06:05:44,399 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1000976705] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-03 06:05:44,400 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-03 06:05:44,400 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-04-03 06:05:44,400 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1527212610] [2023-04-03 06:05:44,400 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-03 06:05:44,400 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-04-03 06:05:44,400 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-03 06:05:44,401 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-04-03 06:05:44,401 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-04-03 06:05:44,402 INFO L87 Difference]: Start difference. First operand 13556 states and 17066 transitions. Second operand has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 3 states have internal predecessors, (95), 3 states have call successors, (46), 2 states have call predecessors, (46), 2 states have return successors, (41), 3 states have call predecessors, (41), 3 states have call successors, (41) [2023-04-03 06:05:46,596 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-03 06:05:46,597 INFO L93 Difference]: Finished difference Result 31474 states and 39613 transitions. [2023-04-03 06:05:46,601 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-04-03 06:05:46,601 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 3 states have internal predecessors, (95), 3 states have call successors, (46), 2 states have call predecessors, (46), 2 states have return successors, (41), 3 states have call predecessors, (41), 3 states have call successors, (41) Word has length 311 [2023-04-03 06:05:46,601 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-03 06:05:46,728 INFO L225 Difference]: With dead ends: 31474 [2023-04-03 06:05:46,729 INFO L226 Difference]: Without dead ends: 18083 [2023-04-03 06:05:46,757 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-04-03 06:05:46,758 INFO L413 NwaCegarLoop]: 1771 mSDtfsCounter, 1222 mSDsluCounter, 1224 mSDsCounter, 0 mSdLazyCounter, 312 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1222 SdHoareTripleChecker+Valid, 2995 SdHoareTripleChecker+Invalid, 321 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 312 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2023-04-03 06:05:46,758 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1222 Valid, 2995 Invalid, 321 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 312 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2023-04-03 06:05:46,770 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18083 states. [2023-04-03 06:05:47,622 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18083 to 18004. [2023-04-03 06:05:47,648 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18004 states, 10367 states have (on average 1.2434648403588309) internal successors, (12891), 10735 states have internal predecessors, (12891), 4821 states have call successors, (4821), 2933 states have call predecessors, (4821), 2815 states have return successors, (4865), 4610 states have call predecessors, (4865), 4805 states have call successors, (4865) [2023-04-03 06:05:47,703 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18004 states to 18004 states and 22577 transitions. [2023-04-03 06:05:47,708 INFO L78 Accepts]: Start accepts. Automaton has 18004 states and 22577 transitions. Word has length 311 [2023-04-03 06:05:47,709 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-03 06:05:47,709 INFO L495 AbstractCegarLoop]: Abstraction has 18004 states and 22577 transitions. [2023-04-03 06:05:47,709 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 3 states have internal predecessors, (95), 3 states have call successors, (46), 2 states have call predecessors, (46), 2 states have return successors, (41), 3 states have call predecessors, (41), 3 states have call successors, (41) [2023-04-03 06:05:47,709 INFO L276 IsEmpty]: Start isEmpty. Operand 18004 states and 22577 transitions. [2023-04-03 06:05:47,718 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 329 [2023-04-03 06:05:47,718 INFO L187 NwaCegarLoop]: Found error trace [2023-04-03 06:05:47,718 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-03 06:05:47,718 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2023-04-03 06:05:47,719 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-03 06:05:47,719 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-03 06:05:47,719 INFO L85 PathProgramCache]: Analyzing trace with hash 1149315496, now seen corresponding path program 1 times [2023-04-03 06:05:47,719 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-03 06:05:47,720 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1033464635] [2023-04-03 06:05:47,720 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-03 06:05:47,720 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-03 06:05:47,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-03 06:05:48,869 INFO L134 CoverageAnalysis]: Checked inductivity of 705 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 705 trivial. 0 not checked. [2023-04-03 06:05:48,869 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-03 06:05:48,869 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1033464635] [2023-04-03 06:05:48,869 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1033464635] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-03 06:05:48,869 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-03 06:05:48,869 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-04-03 06:05:48,869 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1053044432] [2023-04-03 06:05:48,870 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-03 06:05:48,870 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-04-03 06:05:48,870 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-03 06:05:48,871 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-04-03 06:05:48,871 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2023-04-03 06:05:48,871 INFO L87 Difference]: Start difference. First operand 18004 states and 22577 transitions. Second operand has 8 states, 6 states have (on average 16.666666666666668) internal successors, (100), 6 states have internal predecessors, (100), 3 states have call successors, (51), 3 states have call predecessors, (51), 3 states have return successors, (46), 4 states have call predecessors, (46), 2 states have call successors, (46) [2023-04-03 06:05:55,987 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-03 06:05:55,987 INFO L93 Difference]: Finished difference Result 43591 states and 54746 transitions. [2023-04-03 06:05:55,988 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-04-03 06:05:55,988 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 6 states have (on average 16.666666666666668) internal successors, (100), 6 states have internal predecessors, (100), 3 states have call successors, (51), 3 states have call predecessors, (51), 3 states have return successors, (46), 4 states have call predecessors, (46), 2 states have call successors, (46) Word has length 328 [2023-04-03 06:05:56,004 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-03 06:05:56,201 INFO L225 Difference]: With dead ends: 43591 [2023-04-03 06:05:56,202 INFO L226 Difference]: Without dead ends: 25752 [2023-04-03 06:05:56,336 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2023-04-03 06:05:56,337 INFO L413 NwaCegarLoop]: 2450 mSDtfsCounter, 2063 mSDsluCounter, 6387 mSDsCounter, 0 mSdLazyCounter, 1006 mSolverCounterSat, 637 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2064 SdHoareTripleChecker+Valid, 8837 SdHoareTripleChecker+Invalid, 1643 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 637 IncrementalHoareTripleChecker+Valid, 1006 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.2s IncrementalHoareTripleChecker+Time [2023-04-03 06:05:56,339 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2064 Valid, 8837 Invalid, 1643 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [637 Valid, 1006 Invalid, 0 Unknown, 0 Unchecked, 5.2s Time] [2023-04-03 06:05:56,372 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25752 states. [2023-04-03 06:05:59,077 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25752 to 25566. [2023-04-03 06:05:59,122 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25566 states, 14775 states have (on average 1.246362098138748) internal successors, (18415), 15317 states have internal predecessors, (18415), 6777 states have call successors, (6777), 4162 states have call predecessors, (6777), 4013 states have return successors, (6823), 6451 states have call predecessors, (6823), 6727 states have call successors, (6823) [2023-04-03 06:05:59,231 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25566 states to 25566 states and 32015 transitions. [2023-04-03 06:05:59,256 INFO L78 Accepts]: Start accepts. Automaton has 25566 states and 32015 transitions. Word has length 328 [2023-04-03 06:05:59,257 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-03 06:05:59,257 INFO L495 AbstractCegarLoop]: Abstraction has 25566 states and 32015 transitions. [2023-04-03 06:05:59,257 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 6 states have (on average 16.666666666666668) internal successors, (100), 6 states have internal predecessors, (100), 3 states have call successors, (51), 3 states have call predecessors, (51), 3 states have return successors, (46), 4 states have call predecessors, (46), 2 states have call successors, (46) [2023-04-03 06:05:59,257 INFO L276 IsEmpty]: Start isEmpty. Operand 25566 states and 32015 transitions. [2023-04-03 06:05:59,275 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 326 [2023-04-03 06:05:59,275 INFO L187 NwaCegarLoop]: Found error trace [2023-04-03 06:05:59,275 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-03 06:05:59,275 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2023-04-03 06:05:59,276 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-03 06:05:59,276 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-03 06:05:59,276 INFO L85 PathProgramCache]: Analyzing trace with hash -200237643, now seen corresponding path program 1 times [2023-04-03 06:05:59,276 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-03 06:05:59,276 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [633491273] [2023-04-03 06:05:59,277 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-03 06:05:59,277 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-03 06:05:59,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-03 06:06:02,332 INFO L134 CoverageAnalysis]: Checked inductivity of 715 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 709 trivial. 0 not checked. [2023-04-03 06:06:02,332 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-03 06:06:02,333 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [633491273] [2023-04-03 06:06:02,333 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [633491273] provided 0 perfect and 1 imperfect interpolant sequences [2023-04-03 06:06:02,333 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1461098799] [2023-04-03 06:06:02,333 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-03 06:06:02,333 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-03 06:06:02,333 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-03 06:06:02,336 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-04-03 06:06:02,375 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-04-03 06:06:03,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-03 06:06:04,033 INFO L262 TraceCheckSpWp]: Trace formula consists of 4005 conjuncts, 28 conjunts are in the unsatisfiable core [2023-04-03 06:06:04,086 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-04-03 06:06:04,827 INFO L134 CoverageAnalysis]: Checked inductivity of 715 backedges. 216 proven. 0 refuted. 0 times theorem prover too weak. 499 trivial. 0 not checked. [2023-04-03 06:06:04,827 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-04-03 06:06:04,827 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1461098799] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-03 06:06:04,827 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-04-03 06:06:04,827 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [9] total 13 [2023-04-03 06:06:04,829 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1077340389] [2023-04-03 06:06:04,829 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-03 06:06:04,830 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-04-03 06:06:04,830 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-03 06:06:04,831 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-04-03 06:06:04,831 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=114, Unknown=0, NotChecked=0, Total=156 [2023-04-03 06:06:04,832 INFO L87 Difference]: Start difference. First operand 25566 states and 32015 transitions. Second operand has 7 states, 6 states have (on average 17.666666666666668) internal successors, (106), 5 states have internal predecessors, (106), 4 states have call successors, (49), 4 states have call predecessors, (49), 4 states have return successors, (44), 4 states have call predecessors, (44), 4 states have call successors, (44) [2023-04-03 06:06:13,092 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-03 06:06:13,093 INFO L93 Difference]: Finished difference Result 54615 states and 68453 transitions. [2023-04-03 06:06:13,093 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-04-03 06:06:13,094 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 17.666666666666668) internal successors, (106), 5 states have internal predecessors, (106), 4 states have call successors, (49), 4 states have call predecessors, (49), 4 states have return successors, (44), 4 states have call predecessors, (44), 4 states have call successors, (44) Word has length 325 [2023-04-03 06:06:13,105 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-03 06:06:13,296 INFO L225 Difference]: With dead ends: 54615 [2023-04-03 06:06:13,296 INFO L226 Difference]: Without dead ends: 29214 [2023-04-03 06:06:13,394 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 339 GetRequests, 327 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=52, Invalid=130, Unknown=0, NotChecked=0, Total=182 [2023-04-03 06:06:13,395 INFO L413 NwaCegarLoop]: 1807 mSDtfsCounter, 2463 mSDsluCounter, 3700 mSDsCounter, 0 mSdLazyCounter, 3816 mSolverCounterSat, 361 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2468 SdHoareTripleChecker+Valid, 5507 SdHoareTripleChecker+Invalid, 4177 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 361 IncrementalHoareTripleChecker+Valid, 3816 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.2s IncrementalHoareTripleChecker+Time [2023-04-03 06:06:13,395 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2468 Valid, 5507 Invalid, 4177 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [361 Valid, 3816 Invalid, 0 Unknown, 0 Unchecked, 6.2s Time] [2023-04-03 06:06:13,422 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29214 states. [2023-04-03 06:06:15,685 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29214 to 28770. [2023-04-03 06:06:15,724 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28770 states, 16751 states have (on average 1.2504328099814936) internal successors, (20946), 17371 states have internal predecessors, (20946), 7519 states have call successors, (7519), 4654 states have call predecessors, (7519), 4499 states have return successors, (7595), 7165 states have call predecessors, (7595), 7469 states have call successors, (7595) [2023-04-03 06:06:15,813 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28770 states to 28770 states and 36060 transitions. [2023-04-03 06:06:15,823 INFO L78 Accepts]: Start accepts. Automaton has 28770 states and 36060 transitions. Word has length 325 [2023-04-03 06:06:15,824 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-03 06:06:15,824 INFO L495 AbstractCegarLoop]: Abstraction has 28770 states and 36060 transitions. [2023-04-03 06:06:15,824 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 17.666666666666668) internal successors, (106), 5 states have internal predecessors, (106), 4 states have call successors, (49), 4 states have call predecessors, (49), 4 states have return successors, (44), 4 states have call predecessors, (44), 4 states have call successors, (44) [2023-04-03 06:06:15,824 INFO L276 IsEmpty]: Start isEmpty. Operand 28770 states and 36060 transitions. [2023-04-03 06:06:15,865 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 351 [2023-04-03 06:06:15,865 INFO L187 NwaCegarLoop]: Found error trace [2023-04-03 06:06:15,865 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-03 06:06:15,888 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-04-03 06:06:16,081 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2023-04-03 06:06:16,082 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-03 06:06:16,082 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-03 06:06:16,083 INFO L85 PathProgramCache]: Analyzing trace with hash -1449028550, now seen corresponding path program 1 times [2023-04-03 06:06:16,083 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-03 06:06:16,083 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1214417136] [2023-04-03 06:06:16,083 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-03 06:06:16,083 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-03 06:06:16,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-03 06:06:19,032 INFO L134 CoverageAnalysis]: Checked inductivity of 713 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 705 trivial. 0 not checked. [2023-04-03 06:06:19,033 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-03 06:06:19,033 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1214417136] [2023-04-03 06:06:19,033 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1214417136] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-03 06:06:19,033 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-03 06:06:19,033 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-04-03 06:06:19,033 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [270044132] [2023-04-03 06:06:19,033 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-03 06:06:19,034 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-04-03 06:06:19,034 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-03 06:06:19,035 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-04-03 06:06:19,035 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2023-04-03 06:06:19,035 INFO L87 Difference]: Start difference. First operand 28770 states and 36060 transitions. Second operand has 9 states, 7 states have (on average 16.571428571428573) internal successors, (116), 6 states have internal predecessors, (116), 2 states have call successors, (53), 2 states have call predecessors, (53), 5 states have return successors, (50), 5 states have call predecessors, (50), 2 states have call successors, (50) [2023-04-03 06:06:27,214 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-03 06:06:27,215 INFO L93 Difference]: Finished difference Result 57895 states and 72693 transitions. [2023-04-03 06:06:27,215 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-04-03 06:06:27,216 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 7 states have (on average 16.571428571428573) internal successors, (116), 6 states have internal predecessors, (116), 2 states have call successors, (53), 2 states have call predecessors, (53), 5 states have return successors, (50), 5 states have call predecessors, (50), 2 states have call successors, (50) Word has length 350 [2023-04-03 06:06:27,216 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-03 06:06:27,489 INFO L225 Difference]: With dead ends: 57895 [2023-04-03 06:06:27,489 INFO L226 Difference]: Without dead ends: 29290 [2023-04-03 06:06:27,601 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2023-04-03 06:06:27,602 INFO L413 NwaCegarLoop]: 1442 mSDtfsCounter, 3 mSDsluCounter, 10077 mSDsCounter, 0 mSdLazyCounter, 1160 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 11519 SdHoareTripleChecker+Invalid, 1160 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1160 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.2s IncrementalHoareTripleChecker+Time [2023-04-03 06:06:27,602 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 11519 Invalid, 1160 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1160 Invalid, 0 Unknown, 0 Unchecked, 6.2s Time] [2023-04-03 06:06:27,661 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29290 states. [2023-04-03 06:06:29,577 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29290 to 29134. [2023-04-03 06:06:29,611 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29134 states, 16983 states have (on average 1.2470117175999529) internal successors, (21178), 17603 states have internal predecessors, (21178), 7519 states have call successors, (7519), 4654 states have call predecessors, (7519), 4631 states have return successors, (7811), 7297 states have call predecessors, (7811), 7469 states have call successors, (7811) [2023-04-03 06:06:29,712 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29134 states to 29134 states and 36508 transitions. [2023-04-03 06:06:29,724 INFO L78 Accepts]: Start accepts. Automaton has 29134 states and 36508 transitions. Word has length 350 [2023-04-03 06:06:29,725 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-03 06:06:29,725 INFO L495 AbstractCegarLoop]: Abstraction has 29134 states and 36508 transitions. [2023-04-03 06:06:29,725 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 7 states have (on average 16.571428571428573) internal successors, (116), 6 states have internal predecessors, (116), 2 states have call successors, (53), 2 states have call predecessors, (53), 5 states have return successors, (50), 5 states have call predecessors, (50), 2 states have call successors, (50) [2023-04-03 06:06:29,726 INFO L276 IsEmpty]: Start isEmpty. Operand 29134 states and 36508 transitions. [2023-04-03 06:06:29,757 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 355 [2023-04-03 06:06:29,757 INFO L187 NwaCegarLoop]: Found error trace [2023-04-03 06:06:29,758 INFO L195 NwaCegarLoop]: trace histogram [11, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-03 06:06:29,758 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2023-04-03 06:06:29,758 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-03 06:06:29,758 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-03 06:06:29,758 INFO L85 PathProgramCache]: Analyzing trace with hash -1494083580, now seen corresponding path program 1 times [2023-04-03 06:06:29,759 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-03 06:06:29,759 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1492191411] [2023-04-03 06:06:29,759 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-03 06:06:29,759 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-03 06:06:30,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-03 06:06:31,927 INFO L134 CoverageAnalysis]: Checked inductivity of 733 backedges. 0 proven. 40 refuted. 0 times theorem prover too weak. 693 trivial. 0 not checked. [2023-04-03 06:06:31,928 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-03 06:06:31,928 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1492191411] [2023-04-03 06:06:31,928 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1492191411] provided 0 perfect and 1 imperfect interpolant sequences [2023-04-03 06:06:31,928 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2064491498] [2023-04-03 06:06:31,928 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-03 06:06:31,928 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-03 06:06:31,929 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-03 06:06:31,946 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-04-03 06:06:31,985 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-04-03 06:06:33,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-03 06:06:33,442 INFO L262 TraceCheckSpWp]: Trace formula consists of 4043 conjuncts, 15 conjunts are in the unsatisfiable core [2023-04-03 06:06:33,483 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-04-03 06:06:33,703 INFO L134 CoverageAnalysis]: Checked inductivity of 733 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 725 trivial. 0 not checked. [2023-04-03 06:06:33,703 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-04-03 06:06:33,703 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2064491498] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-03 06:06:33,703 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-04-03 06:06:33,704 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [6] total 12 [2023-04-03 06:06:33,704 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [232428822] [2023-04-03 06:06:33,704 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-03 06:06:33,705 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-04-03 06:06:33,705 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-03 06:06:33,706 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-04-03 06:06:33,706 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2023-04-03 06:06:33,706 INFO L87 Difference]: Start difference. First operand 29134 states and 36508 transitions. Second operand has 8 states, 6 states have (on average 19.5) internal successors, (117), 6 states have internal predecessors, (117), 3 states have call successors, (54), 3 states have call predecessors, (54), 4 states have return successors, (51), 4 states have call predecessors, (51), 2 states have call successors, (51) [2023-04-03 06:06:42,613 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-03 06:06:42,614 INFO L93 Difference]: Finished difference Result 58205 states and 72938 transitions. [2023-04-03 06:06:42,614 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-04-03 06:06:42,614 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 6 states have (on average 19.5) internal successors, (117), 6 states have internal predecessors, (117), 3 states have call successors, (54), 3 states have call predecessors, (54), 4 states have return successors, (51), 4 states have call predecessors, (51), 2 states have call successors, (51) Word has length 354 [2023-04-03 06:06:42,615 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-03 06:06:42,779 INFO L225 Difference]: With dead ends: 58205 [2023-04-03 06:06:42,779 INFO L226 Difference]: Without dead ends: 29217 [2023-04-03 06:06:42,860 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 360 GetRequests, 349 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=25, Invalid=131, Unknown=0, NotChecked=0, Total=156 [2023-04-03 06:06:42,869 INFO L413 NwaCegarLoop]: 1501 mSDtfsCounter, 1383 mSDsluCounter, 5257 mSDsCounter, 0 mSdLazyCounter, 4553 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1385 SdHoareTripleChecker+Valid, 6758 SdHoareTripleChecker+Invalid, 4559 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 4553 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.9s IncrementalHoareTripleChecker+Time [2023-04-03 06:06:42,869 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1385 Valid, 6758 Invalid, 4559 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 4553 Invalid, 0 Unknown, 0 Unchecked, 6.9s Time] [2023-04-03 06:06:42,897 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29217 states. [2023-04-03 06:06:45,110 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29217 to 28659. [2023-04-03 06:06:45,141 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28659 states, 16734 states have (on average 1.2476992948488108) internal successors, (20879), 17363 states have internal predecessors, (20879), 7366 states have call successors, (7366), 4501 states have call predecessors, (7366), 4558 states have return successors, (7658), 7215 states have call predecessors, (7658), 7316 states have call successors, (7658) [2023-04-03 06:06:45,238 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28659 states to 28659 states and 35903 transitions. [2023-04-03 06:06:45,255 INFO L78 Accepts]: Start accepts. Automaton has 28659 states and 35903 transitions. Word has length 354 [2023-04-03 06:06:45,255 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-03 06:06:45,256 INFO L495 AbstractCegarLoop]: Abstraction has 28659 states and 35903 transitions. [2023-04-03 06:06:45,256 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 6 states have (on average 19.5) internal successors, (117), 6 states have internal predecessors, (117), 3 states have call successors, (54), 3 states have call predecessors, (54), 4 states have return successors, (51), 4 states have call predecessors, (51), 2 states have call successors, (51) [2023-04-03 06:06:45,256 INFO L276 IsEmpty]: Start isEmpty. Operand 28659 states and 35903 transitions. [2023-04-03 06:06:45,292 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 350 [2023-04-03 06:06:45,293 INFO L187 NwaCegarLoop]: Found error trace [2023-04-03 06:06:45,293 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-03 06:06:45,331 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-04-03 06:06:45,509 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,SelfDestructingSolverStorable16 [2023-04-03 06:06:45,511 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-03 06:06:45,511 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-03 06:06:45,511 INFO L85 PathProgramCache]: Analyzing trace with hash 2035946267, now seen corresponding path program 1 times [2023-04-03 06:06:45,511 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-03 06:06:45,512 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [672654300] [2023-04-03 06:06:45,512 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-03 06:06:45,512 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-03 06:06:45,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-03 06:06:47,316 INFO L134 CoverageAnalysis]: Checked inductivity of 715 backedges. 7 proven. 3 refuted. 0 times theorem prover too weak. 705 trivial. 0 not checked. [2023-04-03 06:06:47,317 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-03 06:06:47,317 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [672654300] [2023-04-03 06:06:47,317 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [672654300] provided 0 perfect and 1 imperfect interpolant sequences [2023-04-03 06:06:47,317 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [78746271] [2023-04-03 06:06:47,317 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-03 06:06:47,318 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-03 06:06:47,318 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-03 06:06:47,319 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-04-03 06:06:47,322 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-04-03 06:06:48,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-03 06:06:48,720 INFO L262 TraceCheckSpWp]: Trace formula consists of 4034 conjuncts, 13 conjunts are in the unsatisfiable core [2023-04-03 06:06:48,753 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-04-03 06:06:48,982 INFO L134 CoverageAnalysis]: Checked inductivity of 715 backedges. 166 proven. 1 refuted. 0 times theorem prover too weak. 548 trivial. 0 not checked. [2023-04-03 06:06:48,982 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-04-03 06:06:49,604 INFO L134 CoverageAnalysis]: Checked inductivity of 715 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 707 trivial. 0 not checked. [2023-04-03 06:06:49,605 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [78746271] provided 1 perfect and 1 imperfect interpolant sequences [2023-04-03 06:06:49,605 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2023-04-03 06:06:49,605 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [9, 7] total 17 [2023-04-03 06:06:49,605 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [327299995] [2023-04-03 06:06:49,605 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-03 06:06:49,606 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-04-03 06:06:49,606 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-03 06:06:49,607 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-04-03 06:06:49,607 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=69, Invalid=203, Unknown=0, NotChecked=0, Total=272 [2023-04-03 06:06:49,607 INFO L87 Difference]: Start difference. First operand 28659 states and 35903 transitions. Second operand has 8 states, 7 states have (on average 16.571428571428573) internal successors, (116), 7 states have internal predecessors, (116), 4 states have call successors, (53), 2 states have call predecessors, (53), 2 states have return successors, (48), 5 states have call predecessors, (48), 4 states have call successors, (48) [2023-04-03 06:06:57,897 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-03 06:06:57,897 INFO L93 Difference]: Finished difference Result 69785 states and 90644 transitions. [2023-04-03 06:06:57,898 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-04-03 06:06:57,898 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 16.571428571428573) internal successors, (116), 7 states have internal predecessors, (116), 4 states have call successors, (53), 2 states have call predecessors, (53), 2 states have return successors, (48), 5 states have call predecessors, (48), 4 states have call successors, (48) Word has length 349 [2023-04-03 06:06:57,899 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-03 06:06:58,253 INFO L225 Difference]: With dead ends: 69785 [2023-04-03 06:06:58,253 INFO L226 Difference]: Without dead ends: 41291 [2023-04-03 06:06:58,339 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 721 GetRequests, 697 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 169 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=152, Invalid=498, Unknown=0, NotChecked=0, Total=650 [2023-04-03 06:06:58,339 INFO L413 NwaCegarLoop]: 1628 mSDtfsCounter, 3067 mSDsluCounter, 4669 mSDsCounter, 0 mSdLazyCounter, 3150 mSolverCounterSat, 1451 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3076 SdHoareTripleChecker+Valid, 6297 SdHoareTripleChecker+Invalid, 4601 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1451 IncrementalHoareTripleChecker+Valid, 3150 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.6s IncrementalHoareTripleChecker+Time [2023-04-03 06:06:58,341 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3076 Valid, 6297 Invalid, 4601 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1451 Valid, 3150 Invalid, 0 Unknown, 0 Unchecked, 5.6s Time] [2023-04-03 06:06:58,370 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41291 states. [2023-04-03 06:07:00,638 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41291 to 33491. [2023-04-03 06:07:00,695 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33491 states, 19780 states have (on average 1.2583417593528816) internal successors, (24890), 20478 states have internal predecessors, (24890), 8436 states have call successors, (8436), 5222 states have call predecessors, (8436), 5274 states have return successors, (8722), 8254 states have call predecessors, (8722), 8386 states have call successors, (8722) [2023-04-03 06:07:00,813 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33491 states to 33491 states and 42048 transitions. [2023-04-03 06:07:00,821 INFO L78 Accepts]: Start accepts. Automaton has 33491 states and 42048 transitions. Word has length 349 [2023-04-03 06:07:00,836 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-03 06:07:00,837 INFO L495 AbstractCegarLoop]: Abstraction has 33491 states and 42048 transitions. [2023-04-03 06:07:00,837 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 16.571428571428573) internal successors, (116), 7 states have internal predecessors, (116), 4 states have call successors, (53), 2 states have call predecessors, (53), 2 states have return successors, (48), 5 states have call predecessors, (48), 4 states have call successors, (48) [2023-04-03 06:07:00,837 INFO L276 IsEmpty]: Start isEmpty. Operand 33491 states and 42048 transitions. [2023-04-03 06:07:00,850 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 353 [2023-04-03 06:07:00,850 INFO L187 NwaCegarLoop]: Found error trace [2023-04-03 06:07:00,850 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-03 06:07:00,884 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-04-03 06:07:01,077 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2023-04-03 06:07:01,078 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-03 06:07:01,078 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-03 06:07:01,078 INFO L85 PathProgramCache]: Analyzing trace with hash 1010733441, now seen corresponding path program 1 times [2023-04-03 06:07:01,078 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-03 06:07:01,079 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [458286639] [2023-04-03 06:07:01,079 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-03 06:07:01,079 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-03 06:07:01,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-03 06:07:03,547 INFO L134 CoverageAnalysis]: Checked inductivity of 715 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 709 trivial. 0 not checked. [2023-04-03 06:07:03,548 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-03 06:07:03,548 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [458286639] [2023-04-03 06:07:03,548 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [458286639] provided 0 perfect and 1 imperfect interpolant sequences [2023-04-03 06:07:03,548 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [608790220] [2023-04-03 06:07:03,548 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-03 06:07:03,549 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-03 06:07:03,549 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-03 06:07:03,563 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-04-03 06:07:03,624 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-04-03 06:07:05,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-03 06:07:05,118 INFO L262 TraceCheckSpWp]: Trace formula consists of 4270 conjuncts, 31 conjunts are in the unsatisfiable core [2023-04-03 06:07:05,130 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-04-03 06:07:06,033 INFO L134 CoverageAnalysis]: Checked inductivity of 715 backedges. 216 proven. 0 refuted. 0 times theorem prover too weak. 499 trivial. 0 not checked. [2023-04-03 06:07:06,033 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-04-03 06:07:06,033 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [608790220] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-03 06:07:06,033 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-04-03 06:07:06,033 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [12] total 19 [2023-04-03 06:07:06,033 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2083676865] [2023-04-03 06:07:06,034 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-03 06:07:06,034 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-04-03 06:07:06,034 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-03 06:07:06,035 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-04-03 06:07:06,035 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=69, Invalid=273, Unknown=0, NotChecked=0, Total=342 [2023-04-03 06:07:06,035 INFO L87 Difference]: Start difference. First operand 33491 states and 42048 transitions. Second operand has 10 states, 9 states have (on average 13.666666666666666) internal successors, (123), 7 states have internal predecessors, (123), 5 states have call successors, (54), 4 states have call predecessors, (54), 5 states have return successors, (49), 6 states have call predecessors, (49), 5 states have call successors, (49) [2023-04-03 06:07:15,451 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-03 06:07:15,451 INFO L93 Difference]: Finished difference Result 70000 states and 87909 transitions. [2023-04-03 06:07:15,451 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-04-03 06:07:15,451 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 13.666666666666666) internal successors, (123), 7 states have internal predecessors, (123), 5 states have call successors, (54), 4 states have call predecessors, (54), 5 states have return successors, (49), 6 states have call predecessors, (49), 5 states have call successors, (49) Word has length 352 [2023-04-03 06:07:15,452 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-03 06:07:15,590 INFO L225 Difference]: With dead ends: 70000 [2023-04-03 06:07:15,590 INFO L226 Difference]: Without dead ends: 36674 [2023-04-03 06:07:15,658 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 371 GetRequests, 351 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=99, Invalid=363, Unknown=0, NotChecked=0, Total=462 [2023-04-03 06:07:15,658 INFO L413 NwaCegarLoop]: 1866 mSDtfsCounter, 1964 mSDsluCounter, 6444 mSDsCounter, 0 mSdLazyCounter, 5382 mSolverCounterSat, 58 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2005 SdHoareTripleChecker+Valid, 8310 SdHoareTripleChecker+Invalid, 5440 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 58 IncrementalHoareTripleChecker+Valid, 5382 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.2s IncrementalHoareTripleChecker+Time [2023-04-03 06:07:15,658 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2005 Valid, 8310 Invalid, 5440 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [58 Valid, 5382 Invalid, 0 Unknown, 0 Unchecked, 7.2s Time] [2023-04-03 06:07:15,683 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36674 states. [2023-04-03 06:07:17,586 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36674 to 33563. [2023-04-03 06:07:17,618 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33563 states, 19812 states have (on average 1.2579244902079547) internal successors, (24922), 20502 states have internal predecessors, (24922), 8468 states have call successors, (8468), 5222 states have call predecessors, (8468), 5282 states have return successors, (8762), 8294 states have call predecessors, (8762), 8418 states have call successors, (8762) [2023-04-03 06:07:17,717 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33563 states to 33563 states and 42152 transitions. [2023-04-03 06:07:17,733 INFO L78 Accepts]: Start accepts. Automaton has 33563 states and 42152 transitions. Word has length 352 [2023-04-03 06:07:17,734 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-03 06:07:17,734 INFO L495 AbstractCegarLoop]: Abstraction has 33563 states and 42152 transitions. [2023-04-03 06:07:17,734 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 13.666666666666666) internal successors, (123), 7 states have internal predecessors, (123), 5 states have call successors, (54), 4 states have call predecessors, (54), 5 states have return successors, (49), 6 states have call predecessors, (49), 5 states have call successors, (49) [2023-04-03 06:07:17,734 INFO L276 IsEmpty]: Start isEmpty. Operand 33563 states and 42152 transitions. [2023-04-03 06:07:17,747 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 393 [2023-04-03 06:07:17,747 INFO L187 NwaCegarLoop]: Found error trace [2023-04-03 06:07:17,748 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 3, 3, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-03 06:07:17,770 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2023-04-03 06:07:17,948 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-03 06:07:17,949 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-03 06:07:17,949 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-03 06:07:17,950 INFO L85 PathProgramCache]: Analyzing trace with hash 101039353, now seen corresponding path program 1 times [2023-04-03 06:07:17,950 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-03 06:07:17,950 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [597418189] [2023-04-03 06:07:17,950 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-03 06:07:17,950 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-03 06:07:18,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-03 06:07:19,297 INFO L134 CoverageAnalysis]: Checked inductivity of 721 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 721 trivial. 0 not checked. [2023-04-03 06:07:19,297 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-03 06:07:19,297 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [597418189] [2023-04-03 06:07:19,297 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [597418189] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-03 06:07:19,297 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-03 06:07:19,297 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-04-03 06:07:19,298 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2430656] [2023-04-03 06:07:19,298 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-03 06:07:19,300 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-04-03 06:07:19,300 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-03 06:07:19,301 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-04-03 06:07:19,301 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2023-04-03 06:07:19,301 INFO L87 Difference]: Start difference. First operand 33563 states and 42152 transitions. Second operand has 8 states, 6 states have (on average 22.166666666666668) internal successors, (133), 6 states have internal predecessors, (133), 3 states have call successors, (62), 3 states have call predecessors, (62), 3 states have return successors, (57), 4 states have call predecessors, (57), 2 states have call successors, (57) [2023-04-03 06:07:25,125 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-03 06:07:25,125 INFO L93 Difference]: Finished difference Result 63330 states and 79087 transitions. [2023-04-03 06:07:25,126 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-04-03 06:07:25,126 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 6 states have (on average 22.166666666666668) internal successors, (133), 6 states have internal predecessors, (133), 3 states have call successors, (62), 3 states have call predecessors, (62), 3 states have return successors, (57), 4 states have call predecessors, (57), 2 states have call successors, (57) Word has length 392 [2023-04-03 06:07:25,126 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-03 06:07:25,231 INFO L225 Difference]: With dead ends: 63330 [2023-04-03 06:07:25,231 INFO L226 Difference]: Without dead ends: 29932 [2023-04-03 06:07:25,313 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2023-04-03 06:07:25,314 INFO L413 NwaCegarLoop]: 2256 mSDtfsCounter, 3133 mSDsluCounter, 6063 mSDsCounter, 0 mSdLazyCounter, 972 mSolverCounterSat, 1684 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3133 SdHoareTripleChecker+Valid, 8319 SdHoareTripleChecker+Invalid, 2656 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1684 IncrementalHoareTripleChecker+Valid, 972 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.4s IncrementalHoareTripleChecker+Time [2023-04-03 06:07:25,314 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3133 Valid, 8319 Invalid, 2656 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1684 Valid, 972 Invalid, 0 Unknown, 0 Unchecked, 4.4s Time] [2023-04-03 06:07:25,335 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29932 states. [2023-04-03 06:07:27,021 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29932 to 29722. [2023-04-03 06:07:27,044 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29722 states, 17524 states have (on average 1.2521113900935859) internal successors, (21942), 18130 states have internal predecessors, (21942), 7324 states have call successors, (7324), 4797 states have call predecessors, (7324), 4873 states have return successors, (7608), 7203 states have call predecessors, (7608), 7290 states have call successors, (7608) [2023-04-03 06:07:27,111 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29722 states to 29722 states and 36874 transitions. [2023-04-03 06:07:27,116 INFO L78 Accepts]: Start accepts. Automaton has 29722 states and 36874 transitions. Word has length 392 [2023-04-03 06:07:27,116 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-03 06:07:27,116 INFO L495 AbstractCegarLoop]: Abstraction has 29722 states and 36874 transitions. [2023-04-03 06:07:27,117 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 6 states have (on average 22.166666666666668) internal successors, (133), 6 states have internal predecessors, (133), 3 states have call successors, (62), 3 states have call predecessors, (62), 3 states have return successors, (57), 4 states have call predecessors, (57), 2 states have call successors, (57) [2023-04-03 06:07:27,117 INFO L276 IsEmpty]: Start isEmpty. Operand 29722 states and 36874 transitions. [2023-04-03 06:07:27,128 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 413 [2023-04-03 06:07:27,128 INFO L187 NwaCegarLoop]: Found error trace [2023-04-03 06:07:27,128 INFO L195 NwaCegarLoop]: trace histogram [11, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 4, 4, 3, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-03 06:07:27,128 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2023-04-03 06:07:27,128 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-03 06:07:27,129 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-03 06:07:27,129 INFO L85 PathProgramCache]: Analyzing trace with hash -1309649905, now seen corresponding path program 1 times [2023-04-03 06:07:27,129 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-03 06:07:27,129 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1491320494] [2023-04-03 06:07:27,129 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-03 06:07:27,129 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-03 06:07:27,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-03 06:07:27,930 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 9 proven. 8 refuted. 0 times theorem prover too weak. 743 trivial. 0 not checked. [2023-04-03 06:07:27,931 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-03 06:07:27,931 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1491320494] [2023-04-03 06:07:27,931 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1491320494] provided 0 perfect and 1 imperfect interpolant sequences [2023-04-03 06:07:27,931 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1060832896] [2023-04-03 06:07:27,931 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-03 06:07:27,931 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-03 06:07:27,931 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-03 06:07:27,933 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-04-03 06:07:27,935 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-04-03 06:07:29,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-03 06:07:29,104 INFO L262 TraceCheckSpWp]: Trace formula consists of 4435 conjuncts, 13 conjunts are in the unsatisfiable core [2023-04-03 06:07:29,124 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-04-03 06:07:29,390 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 247 proven. 2 refuted. 0 times theorem prover too weak. 511 trivial. 0 not checked. [2023-04-03 06:07:29,390 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-04-03 06:07:29,946 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 747 trivial. 0 not checked. [2023-04-03 06:07:29,946 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1060832896] provided 1 perfect and 1 imperfect interpolant sequences [2023-04-03 06:07:29,948 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2023-04-03 06:07:29,948 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [8, 7] total 17 [2023-04-03 06:07:29,948 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [231472482] [2023-04-03 06:07:29,949 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-03 06:07:29,949 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-04-03 06:07:29,949 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-03 06:07:29,950 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-04-03 06:07:29,950 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=205, Unknown=0, NotChecked=0, Total=272 [2023-04-03 06:07:29,950 INFO L87 Difference]: Start difference. First operand 29722 states and 36874 transitions. Second operand has 8 states, 7 states have (on average 20.428571428571427) internal successors, (143), 7 states have internal predecessors, (143), 3 states have call successors, (63), 2 states have call predecessors, (63), 3 states have return successors, (58), 4 states have call predecessors, (58), 3 states have call successors, (58) [2023-04-03 06:07:36,124 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-03 06:07:36,125 INFO L93 Difference]: Finished difference Result 68995 states and 85474 transitions. [2023-04-03 06:07:36,125 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-04-03 06:07:36,125 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 20.428571428571427) internal successors, (143), 7 states have internal predecessors, (143), 3 states have call successors, (63), 2 states have call predecessors, (63), 3 states have return successors, (58), 4 states have call predecessors, (58), 3 states have call successors, (58) Word has length 412 [2023-04-03 06:07:36,144 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-03 06:07:36,302 INFO L225 Difference]: With dead ends: 68995 [2023-04-03 06:07:36,303 INFO L226 Difference]: Without dead ends: 39438 [2023-04-03 06:07:36,369 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 836 GetRequests, 817 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 100 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=102, Invalid=318, Unknown=0, NotChecked=0, Total=420 [2023-04-03 06:07:36,374 INFO L413 NwaCegarLoop]: 1421 mSDtfsCounter, 3027 mSDsluCounter, 4068 mSDsCounter, 0 mSdLazyCounter, 3025 mSolverCounterSat, 1463 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3040 SdHoareTripleChecker+Valid, 5489 SdHoareTripleChecker+Invalid, 4488 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1463 IncrementalHoareTripleChecker+Valid, 3025 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.1s IncrementalHoareTripleChecker+Time [2023-04-03 06:07:36,375 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3040 Valid, 5489 Invalid, 4488 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1463 Valid, 3025 Invalid, 0 Unknown, 0 Unchecked, 4.1s Time] [2023-04-03 06:07:36,408 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39438 states. [2023-04-03 06:07:39,040 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39438 to 39044. [2023-04-03 06:07:39,069 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 39044 states, 23126 states have (on average 1.2556429992216553) internal successors, (29038), 23915 states have internal predecessors, (29038), 9437 states have call successors, (9437), 6372 states have call predecessors, (9437), 6480 states have return successors, (9816), 9301 states have call predecessors, (9816), 9402 states have call successors, (9816) [2023-04-03 06:07:39,158 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39044 states to 39044 states and 48291 transitions. [2023-04-03 06:07:39,163 INFO L78 Accepts]: Start accepts. Automaton has 39044 states and 48291 transitions. Word has length 412 [2023-04-03 06:07:39,163 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-03 06:07:39,164 INFO L495 AbstractCegarLoop]: Abstraction has 39044 states and 48291 transitions. [2023-04-03 06:07:39,164 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 20.428571428571427) internal successors, (143), 7 states have internal predecessors, (143), 3 states have call successors, (63), 2 states have call predecessors, (63), 3 states have return successors, (58), 4 states have call predecessors, (58), 3 states have call successors, (58) [2023-04-03 06:07:39,164 INFO L276 IsEmpty]: Start isEmpty. Operand 39044 states and 48291 transitions. [2023-04-03 06:07:39,177 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 404 [2023-04-03 06:07:39,177 INFO L187 NwaCegarLoop]: Found error trace [2023-04-03 06:07:39,177 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 4, 4, 3, 3, 3, 3, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-03 06:07:39,190 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2023-04-03 06:07:39,378 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-03 06:07:39,378 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-03 06:07:39,378 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-03 06:07:39,379 INFO L85 PathProgramCache]: Analyzing trace with hash -435139520, now seen corresponding path program 1 times [2023-04-03 06:07:39,379 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-03 06:07:39,379 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [372395932] [2023-04-03 06:07:39,379 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-03 06:07:39,379 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-03 06:07:39,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-03 06:07:40,932 INFO L134 CoverageAnalysis]: Checked inductivity of 748 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 740 trivial. 0 not checked. [2023-04-03 06:07:40,932 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-03 06:07:40,932 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [372395932] [2023-04-03 06:07:40,932 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [372395932] provided 0 perfect and 1 imperfect interpolant sequences [2023-04-03 06:07:40,932 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1722354444] [2023-04-03 06:07:40,933 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-03 06:07:40,933 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-03 06:07:40,933 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-03 06:07:40,934 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-04-03 06:07:40,940 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2023-04-03 06:07:41,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-03 06:07:41,975 INFO L262 TraceCheckSpWp]: Trace formula consists of 4300 conjuncts, 22 conjunts are in the unsatisfiable core [2023-04-03 06:07:41,986 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-04-03 06:07:42,157 INFO L134 CoverageAnalysis]: Checked inductivity of 748 backedges. 29 proven. 0 refuted. 0 times theorem prover too weak. 719 trivial. 0 not checked. [2023-04-03 06:07:42,157 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-04-03 06:07:42,157 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1722354444] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-03 06:07:42,157 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-04-03 06:07:42,157 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [9] total 14 [2023-04-03 06:07:42,157 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [290659349] [2023-04-03 06:07:42,157 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-03 06:07:42,158 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-04-03 06:07:42,158 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-03 06:07:42,159 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-04-03 06:07:42,159 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=152, Unknown=0, NotChecked=0, Total=182 [2023-04-03 06:07:42,159 INFO L87 Difference]: Start difference. First operand 39044 states and 48291 transitions. Second operand has 8 states, 6 states have (on average 23.833333333333332) internal successors, (143), 6 states have internal predecessors, (143), 3 states have call successors, (63), 3 states have call predecessors, (63), 4 states have return successors, (58), 4 states have call predecessors, (58), 2 states have call successors, (58) [2023-04-03 06:07:50,161 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-03 06:07:50,162 INFO L93 Difference]: Finished difference Result 78646 states and 97559 transitions. [2023-04-03 06:07:50,163 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-04-03 06:07:50,163 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 6 states have (on average 23.833333333333332) internal successors, (143), 6 states have internal predecessors, (143), 3 states have call successors, (63), 3 states have call predecessors, (63), 4 states have return successors, (58), 4 states have call predecessors, (58), 2 states have call successors, (58) Word has length 403 [2023-04-03 06:07:50,189 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-03 06:07:50,355 INFO L225 Difference]: With dead ends: 78646 [2023-04-03 06:07:50,355 INFO L226 Difference]: Without dead ends: 39695 [2023-04-03 06:07:50,454 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 420 GetRequests, 407 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=34, Invalid=176, Unknown=0, NotChecked=0, Total=210 [2023-04-03 06:07:50,456 INFO L413 NwaCegarLoop]: 1509 mSDtfsCounter, 1364 mSDsluCounter, 5091 mSDsCounter, 0 mSdLazyCounter, 4601 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1388 SdHoareTripleChecker+Valid, 6600 SdHoareTripleChecker+Invalid, 4608 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 4601 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.4s IncrementalHoareTripleChecker+Time [2023-04-03 06:07:50,456 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1388 Valid, 6600 Invalid, 4608 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 4601 Invalid, 0 Unknown, 0 Unchecked, 5.4s Time] [2023-04-03 06:07:50,496 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39695 states. [2023-04-03 06:07:53,454 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39695 to 38985. [2023-04-03 06:07:53,498 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 38985 states, 23136 states have (on average 1.2563537344398341) internal successors, (29067), 23955 states have internal predecessors, (29067), 9436 states have call successors, (9436), 6269 states have call predecessors, (9436), 6412 states have return successors, (9815), 9316 states have call predecessors, (9815), 9401 states have call successors, (9815) [2023-04-03 06:07:53,635 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38985 states to 38985 states and 48318 transitions. [2023-04-03 06:07:53,648 INFO L78 Accepts]: Start accepts. Automaton has 38985 states and 48318 transitions. Word has length 403 [2023-04-03 06:07:53,649 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-03 06:07:53,649 INFO L495 AbstractCegarLoop]: Abstraction has 38985 states and 48318 transitions. [2023-04-03 06:07:53,649 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 6 states have (on average 23.833333333333332) internal successors, (143), 6 states have internal predecessors, (143), 3 states have call successors, (63), 3 states have call predecessors, (63), 4 states have return successors, (58), 4 states have call predecessors, (58), 2 states have call successors, (58) [2023-04-03 06:07:53,649 INFO L276 IsEmpty]: Start isEmpty. Operand 38985 states and 48318 transitions. [2023-04-03 06:07:53,680 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 440 [2023-04-03 06:07:53,681 INFO L187 NwaCegarLoop]: Found error trace [2023-04-03 06:07:53,681 INFO L195 NwaCegarLoop]: trace histogram [11, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-03 06:07:53,701 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2023-04-03 06:07:53,898 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-03 06:07:53,899 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-03 06:07:53,901 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-03 06:07:53,901 INFO L85 PathProgramCache]: Analyzing trace with hash 263828199, now seen corresponding path program 1 times [2023-04-03 06:07:53,902 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-03 06:07:53,902 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [928427072] [2023-04-03 06:07:53,902 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-03 06:07:53,902 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-03 06:07:54,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-03 06:07:56,306 INFO L134 CoverageAnalysis]: Checked inductivity of 772 backedges. 9 proven. 8 refuted. 0 times theorem prover too weak. 755 trivial. 0 not checked. [2023-04-03 06:07:56,306 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-03 06:07:56,306 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [928427072] [2023-04-03 06:07:56,306 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [928427072] provided 0 perfect and 1 imperfect interpolant sequences [2023-04-03 06:07:56,306 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [248054573] [2023-04-03 06:07:56,307 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-03 06:07:56,307 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-03 06:07:56,307 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-03 06:07:56,321 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-04-03 06:07:56,379 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2023-04-03 06:07:58,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-03 06:07:58,132 INFO L262 TraceCheckSpWp]: Trace formula consists of 4700 conjuncts, 16 conjunts are in the unsatisfiable core [2023-04-03 06:07:58,142 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-04-03 06:07:58,653 INFO L134 CoverageAnalysis]: Checked inductivity of 772 backedges. 247 proven. 2 refuted. 0 times theorem prover too weak. 523 trivial. 0 not checked. [2023-04-03 06:07:58,654 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-04-03 06:07:59,641 INFO L134 CoverageAnalysis]: Checked inductivity of 772 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 759 trivial. 0 not checked. [2023-04-03 06:07:59,641 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [248054573] provided 1 perfect and 1 imperfect interpolant sequences [2023-04-03 06:07:59,642 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2023-04-03 06:07:59,642 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [11, 10] total 26 [2023-04-03 06:07:59,642 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [103210405] [2023-04-03 06:07:59,642 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-03 06:07:59,644 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-04-03 06:07:59,644 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-03 06:07:59,644 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-04-03 06:07:59,645 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=106, Invalid=544, Unknown=0, NotChecked=0, Total=650 [2023-04-03 06:07:59,645 INFO L87 Difference]: Start difference. First operand 38985 states and 48318 transitions. Second operand has 11 states, 10 states have (on average 15.4) internal successors, (154), 9 states have internal predecessors, (154), 4 states have call successors, (66), 2 states have call predecessors, (66), 4 states have return successors, (61), 6 states have call predecessors, (61), 4 states have call successors, (61) [2023-04-03 06:08:09,664 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-03 06:08:09,669 INFO L93 Difference]: Finished difference Result 84128 states and 104360 transitions. [2023-04-03 06:08:09,670 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-04-03 06:08:09,670 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 15.4) internal successors, (154), 9 states have internal predecessors, (154), 4 states have call successors, (66), 2 states have call predecessors, (66), 4 states have return successors, (61), 6 states have call predecessors, (61), 4 states have call successors, (61) Word has length 439 [2023-04-03 06:08:09,671 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-03 06:08:09,888 INFO L225 Difference]: With dead ends: 84128 [2023-04-03 06:08:09,888 INFO L226 Difference]: Without dead ends: 45308 [2023-04-03 06:08:10,043 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 897 GetRequests, 866 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 245 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=172, Invalid=884, Unknown=0, NotChecked=0, Total=1056 [2023-04-03 06:08:10,044 INFO L413 NwaCegarLoop]: 1382 mSDtfsCounter, 1558 mSDsluCounter, 7217 mSDsCounter, 0 mSdLazyCounter, 5792 mSolverCounterSat, 130 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1571 SdHoareTripleChecker+Valid, 8599 SdHoareTripleChecker+Invalid, 5922 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 130 IncrementalHoareTripleChecker+Valid, 5792 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.5s IncrementalHoareTripleChecker+Time [2023-04-03 06:08:10,044 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1571 Valid, 8599 Invalid, 5922 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [130 Valid, 5792 Invalid, 0 Unknown, 0 Unchecked, 6.5s Time] [2023-04-03 06:08:10,090 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45308 states. [2023-04-03 06:08:13,419 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45308 to 45114. [2023-04-03 06:08:13,483 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 45114 states, 26938 states have (on average 1.2616007127477913) internal successors, (33985), 27890 states have internal predecessors, (33985), 10772 states have call successors, (10772), 7182 states have call predecessors, (10772), 7403 states have return successors, (11245), 10688 states have call predecessors, (11245), 10737 states have call successors, (11245) [2023-04-03 06:08:13,834 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45114 states to 45114 states and 56002 transitions. [2023-04-03 06:08:13,886 INFO L78 Accepts]: Start accepts. Automaton has 45114 states and 56002 transitions. Word has length 439 [2023-04-03 06:08:13,886 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-03 06:08:13,887 INFO L495 AbstractCegarLoop]: Abstraction has 45114 states and 56002 transitions. [2023-04-03 06:08:13,887 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 15.4) internal successors, (154), 9 states have internal predecessors, (154), 4 states have call successors, (66), 2 states have call predecessors, (66), 4 states have return successors, (61), 6 states have call predecessors, (61), 4 states have call successors, (61) [2023-04-03 06:08:13,887 INFO L276 IsEmpty]: Start isEmpty. Operand 45114 states and 56002 transitions. [2023-04-03 06:08:13,975 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 462 [2023-04-03 06:08:13,975 INFO L187 NwaCegarLoop]: Found error trace [2023-04-03 06:08:13,976 INFO L195 NwaCegarLoop]: trace histogram [11, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 5, 5, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-03 06:08:14,010 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2023-04-03 06:08:14,189 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-03 06:08:14,190 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-03 06:08:14,190 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-03 06:08:14,191 INFO L85 PathProgramCache]: Analyzing trace with hash -1420054272, now seen corresponding path program 1 times [2023-04-03 06:08:14,191 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-03 06:08:14,191 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1484585424] [2023-04-03 06:08:14,191 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-03 06:08:14,191 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-03 06:08:14,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-03 06:08:15,978 INFO L134 CoverageAnalysis]: Checked inductivity of 805 backedges. 32 proven. 10 refuted. 0 times theorem prover too weak. 763 trivial. 0 not checked. [2023-04-03 06:08:15,978 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-03 06:08:15,979 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1484585424] [2023-04-03 06:08:15,979 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1484585424] provided 0 perfect and 1 imperfect interpolant sequences [2023-04-03 06:08:15,979 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1620593392] [2023-04-03 06:08:15,979 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-03 06:08:15,979 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-03 06:08:15,979 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-03 06:08:15,980 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-04-03 06:08:15,983 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2023-04-03 06:08:17,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-03 06:08:17,298 INFO L262 TraceCheckSpWp]: Trace formula consists of 4701 conjuncts, 11 conjunts are in the unsatisfiable core [2023-04-03 06:08:17,328 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-04-03 06:08:17,847 INFO L134 CoverageAnalysis]: Checked inductivity of 805 backedges. 271 proven. 11 refuted. 0 times theorem prover too weak. 523 trivial. 0 not checked. [2023-04-03 06:08:17,847 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-04-03 06:08:18,487 INFO L134 CoverageAnalysis]: Checked inductivity of 805 backedges. 31 proven. 5 refuted. 0 times theorem prover too weak. 769 trivial. 0 not checked. [2023-04-03 06:08:18,488 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1620593392] provided 0 perfect and 2 imperfect interpolant sequences [2023-04-03 06:08:18,488 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1131391383] [2023-04-03 06:08:18,531 INFO L159 IcfgInterpreter]: Started Sifa with 257 locations of interest [2023-04-03 06:08:18,531 INFO L166 IcfgInterpreter]: Building call graph [2023-04-03 06:08:18,541 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2023-04-03 06:08:18,568 INFO L176 IcfgInterpreter]: Starting interpretation [2023-04-03 06:08:18,569 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2023-04-03 06:08:37,484 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.init with input of size 220 for LOIs [2023-04-03 06:08:44,592 INFO L197 IcfgInterpreter]: Interpreting procedure main with input of size 204 for LOIs [2023-04-03 06:08:46,776 WARN L137 XnfTransformerHelper]: expecting exponential blowup for input size 9 [2023-04-03 06:08:49,088 WARN L137 XnfTransformerHelper]: expecting exponential blowup for input size 9