/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-consumption/32_7a_cilled_linux-3.8-rc1-drivers--platform--x86--ideapad-laptop.ko-main.cil.out.i -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-f954360 [2023-04-03 04:31:16,377 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-04-03 04:31:16,379 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-04-03 04:31:16,420 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-04-03 04:31:16,420 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-04-03 04:31:16,421 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-04-03 04:31:16,422 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-04-03 04:31:16,423 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-04-03 04:31:16,425 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-04-03 04:31:16,425 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-04-03 04:31:16,426 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-04-03 04:31:16,427 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-04-03 04:31:16,428 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-04-03 04:31:16,428 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-04-03 04:31:16,429 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-04-03 04:31:16,430 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-04-03 04:31:16,431 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-04-03 04:31:16,432 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-04-03 04:31:16,433 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-04-03 04:31:16,435 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-04-03 04:31:16,436 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-04-03 04:31:16,437 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-04-03 04:31:16,445 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-04-03 04:31:16,446 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-04-03 04:31:16,453 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-04-03 04:31:16,453 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-04-03 04:31:16,453 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-04-03 04:31:16,454 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-04-03 04:31:16,454 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-04-03 04:31:16,458 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-04-03 04:31:16,458 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-04-03 04:31:16,459 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-04-03 04:31:16,460 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-04-03 04:31:16,461 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-04-03 04:31:16,462 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-04-03 04:31:16,462 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-04-03 04:31:16,462 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-04-03 04:31:16,462 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-04-03 04:31:16,463 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-04-03 04:31:16,463 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-04-03 04:31:16,464 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-04-03 04:31:16,465 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 04:31:16,501 INFO L113 SettingsManager]: Loading preferences was successful [2023-04-03 04:31:16,501 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-04-03 04:31:16,502 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-04-03 04:31:16,502 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-04-03 04:31:16,503 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-04-03 04:31:16,503 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-04-03 04:31:16,503 INFO L138 SettingsManager]: * User list type=DISABLED [2023-04-03 04:31:16,503 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-04-03 04:31:16,503 INFO L138 SettingsManager]: * Explicit value domain=true [2023-04-03 04:31:16,503 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-04-03 04:31:16,504 INFO L138 SettingsManager]: * Octagon Domain=false [2023-04-03 04:31:16,504 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2023-04-03 04:31:16,504 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-04-03 04:31:16,505 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-04-03 04:31:16,505 INFO L138 SettingsManager]: * Interval Domain=false [2023-04-03 04:31:16,505 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-04-03 04:31:16,505 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-04-03 04:31:16,505 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2023-04-03 04:31:16,506 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-04-03 04:31:16,506 INFO L138 SettingsManager]: * sizeof long=4 [2023-04-03 04:31:16,506 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-04-03 04:31:16,506 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-04-03 04:31:16,506 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-04-03 04:31:16,506 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-04-03 04:31:16,506 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-04-03 04:31:16,506 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-04-03 04:31:16,506 INFO L138 SettingsManager]: * sizeof long double=12 [2023-04-03 04:31:16,507 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-04-03 04:31:16,507 INFO L138 SettingsManager]: * Use constant arrays=true [2023-04-03 04:31:16,507 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-04-03 04:31:16,507 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-04-03 04:31:16,507 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-04-03 04:31:16,507 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-04-03 04:31:16,507 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-04-03 04:31:16,508 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2023-04-03 04:31:16,508 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-04-03 04:31:16,508 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-04-03 04:31:16,508 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-04-03 04:31:16,508 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-04-03 04:31:16,508 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-04-03 04:31:16,508 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-04-03 04:31:16,508 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Abstract Domain -> OctagonDomain [2023-04-03 04:31:16,731 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-04-03 04:31:16,749 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-04-03 04:31:16,751 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-04-03 04:31:16,752 INFO L271 PluginConnector]: Initializing CDTParser... [2023-04-03 04:31:16,753 INFO L275 PluginConnector]: CDTParser initialized [2023-04-03 04:31:16,754 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--platform--x86--ideapad-laptop.ko-main.cil.out.i [2023-04-03 04:31:17,926 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-04-03 04:31:18,437 INFO L351 CDTParser]: Found 1 translation units. [2023-04-03 04:31:18,437 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--platform--x86--ideapad-laptop.ko-main.cil.out.i [2023-04-03 04:31:18,471 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ab96ee407/1bfd88a7b6904af98f5dc5db321e1c67/FLAGeaba3579b [2023-04-03 04:31:18,489 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ab96ee407/1bfd88a7b6904af98f5dc5db321e1c67 [2023-04-03 04:31:18,491 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-04-03 04:31:18,494 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2023-04-03 04:31:18,496 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-04-03 04:31:18,497 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-04-03 04:31:18,503 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-04-03 04:31:18,504 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.04 04:31:18" (1/1) ... [2023-04-03 04:31:18,505 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@22566145 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.04 04:31:18, skipping insertion in model container [2023-04-03 04:31:18,506 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.04 04:31:18" (1/1) ... [2023-04-03 04:31:18,512 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-04-03 04:31:18,612 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-04-03 04:31:19,808 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--platform--x86--ideapad-laptop.ko-main.cil.out.i[160403,160416] [2023-04-03 04:31:19,921 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-04-03 04:31:19,945 INFO L203 MainTranslator]: Completed pre-run [2023-04-03 04:31:20,155 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--platform--x86--ideapad-laptop.ko-main.cil.out.i[160403,160416] [2023-04-03 04:31:20,184 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-04-03 04:31:20,259 WARN L667 CHandler]: The function sprintf is called, but not defined or handled by StandardFunctionHandler. [2023-04-03 04:31:20,265 INFO L208 MainTranslator]: Completed translation [2023-04-03 04:31:20,265 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.04 04:31:20 WrapperNode [2023-04-03 04:31:20,266 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-04-03 04:31:20,267 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-04-03 04:31:20,267 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-04-03 04:31:20,267 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-04-03 04:31:20,278 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.04 04:31:20" (1/1) ... [2023-04-03 04:31:20,278 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.04 04:31:20" (1/1) ... [2023-04-03 04:31:20,341 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.04 04:31:20" (1/1) ... [2023-04-03 04:31:20,341 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.04 04:31:20" (1/1) ... [2023-04-03 04:31:20,414 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.04 04:31:20" (1/1) ... [2023-04-03 04:31:20,437 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.04 04:31:20" (1/1) ... [2023-04-03 04:31:20,460 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.04 04:31:20" (1/1) ... [2023-04-03 04:31:20,473 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.04 04:31:20" (1/1) ... [2023-04-03 04:31:20,500 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-04-03 04:31:20,501 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-04-03 04:31:20,501 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-04-03 04:31:20,502 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-04-03 04:31:20,504 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.04 04:31:20" (1/1) ... [2023-04-03 04:31:20,510 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-04-03 04:31:20,518 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-03 04:31:20,531 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 04:31:20,547 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 04:31:20,574 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2023-04-03 04:31:20,574 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-04-03 04:31:20,574 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2023-04-03 04:31:20,574 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2023-04-03 04:31:20,574 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2023-04-03 04:31:20,574 INFO L138 BoogieDeclarations]: Found implementation of procedure variable_test_bit [2023-04-03 04:31:20,574 INFO L138 BoogieDeclarations]: Found implementation of procedure PTR_ERR [2023-04-03 04:31:20,574 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2023-04-03 04:31:20,574 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-04-03 04:31:20,575 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2023-04-03 04:31:20,575 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2023-04-03 04:31:20,575 INFO L138 BoogieDeclarations]: Found implementation of procedure __kmalloc [2023-04-03 04:31:20,575 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2023-04-03 04:31:20,575 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2023-04-03 04:31:20,575 INFO L138 BoogieDeclarations]: Found implementation of procedure platform_set_drvdata [2023-04-03 04:31:20,575 INFO L138 BoogieDeclarations]: Found implementation of procedure input_allocate_device [2023-04-03 04:31:20,575 INFO L138 BoogieDeclarations]: Found implementation of procedure backlight_update_status [2023-04-03 04:31:20,575 INFO L138 BoogieDeclarations]: Found implementation of procedure read_method_int [2023-04-03 04:31:20,575 INFO L138 BoogieDeclarations]: Found implementation of procedure method_vpcr [2023-04-03 04:31:20,575 INFO L138 BoogieDeclarations]: Found implementation of procedure method_vpcw [2023-04-03 04:31:20,575 INFO L138 BoogieDeclarations]: Found implementation of procedure read_ec_data [2023-04-03 04:31:20,576 INFO L138 BoogieDeclarations]: Found implementation of procedure write_ec_cmd [2023-04-03 04:31:20,576 INFO L138 BoogieDeclarations]: Found implementation of procedure debugfs_status_show [2023-04-03 04:31:20,576 INFO L138 BoogieDeclarations]: Found implementation of procedure debugfs_status_open [2023-04-03 04:31:20,576 INFO L138 BoogieDeclarations]: Found implementation of procedure debugfs_cfg_show [2023-04-03 04:31:20,576 INFO L138 BoogieDeclarations]: Found implementation of procedure debugfs_cfg_open [2023-04-03 04:31:20,576 INFO L138 BoogieDeclarations]: Found implementation of procedure ideapad_debugfs_init [2023-04-03 04:31:20,576 INFO L138 BoogieDeclarations]: Found implementation of procedure ideapad_debugfs_exit [2023-04-03 04:31:20,576 INFO L138 BoogieDeclarations]: Found implementation of procedure show_ideapad_cam [2023-04-03 04:31:20,576 INFO L138 BoogieDeclarations]: Found implementation of procedure store_ideapad_cam [2023-04-03 04:31:20,576 INFO L138 BoogieDeclarations]: Found implementation of procedure show_ideapad_fan [2023-04-03 04:31:20,576 INFO L138 BoogieDeclarations]: Found implementation of procedure store_ideapad_fan [2023-04-03 04:31:20,576 INFO L138 BoogieDeclarations]: Found implementation of procedure ideapad_is_visible [2023-04-03 04:31:20,576 INFO L138 BoogieDeclarations]: Found implementation of procedure ideapad_rfk_set [2023-04-03 04:31:20,577 INFO L138 BoogieDeclarations]: Found implementation of procedure ideapad_sync_rfk_state [2023-04-03 04:31:20,577 INFO L138 BoogieDeclarations]: Found implementation of procedure ideapad_register_rfkill [2023-04-03 04:31:20,577 INFO L138 BoogieDeclarations]: Found implementation of procedure ideapad_unregister_rfkill [2023-04-03 04:31:20,577 INFO L138 BoogieDeclarations]: Found implementation of procedure ideapad_platform_init [2023-04-03 04:31:20,577 INFO L138 BoogieDeclarations]: Found implementation of procedure ideapad_platform_exit [2023-04-03 04:31:20,578 INFO L138 BoogieDeclarations]: Found implementation of procedure ideapad_input_init [2023-04-03 04:31:20,578 INFO L138 BoogieDeclarations]: Found implementation of procedure ideapad_input_exit [2023-04-03 04:31:20,578 INFO L138 BoogieDeclarations]: Found implementation of procedure ideapad_input_report [2023-04-03 04:31:20,578 INFO L138 BoogieDeclarations]: Found implementation of procedure ideapad_input_novokey [2023-04-03 04:31:20,578 INFO L138 BoogieDeclarations]: Found implementation of procedure ideapad_check_special_buttons [2023-04-03 04:31:20,579 INFO L138 BoogieDeclarations]: Found implementation of procedure ideapad_backlight_get_brightness [2023-04-03 04:31:20,579 INFO L138 BoogieDeclarations]: Found implementation of procedure ideapad_backlight_update_status [2023-04-03 04:31:20,579 INFO L138 BoogieDeclarations]: Found implementation of procedure ideapad_backlight_init [2023-04-03 04:31:20,579 INFO L138 BoogieDeclarations]: Found implementation of procedure ideapad_backlight_exit [2023-04-03 04:31:20,579 INFO L138 BoogieDeclarations]: Found implementation of procedure ideapad_backlight_notify_power [2023-04-03 04:31:20,579 INFO L138 BoogieDeclarations]: Found implementation of procedure ideapad_backlight_notify_brightness [2023-04-03 04:31:20,579 INFO L138 BoogieDeclarations]: Found implementation of procedure ideapad_sync_touchpad_state [2023-04-03 04:31:20,579 INFO L138 BoogieDeclarations]: Found implementation of procedure ideapad_acpi_add [2023-04-03 04:31:20,580 INFO L138 BoogieDeclarations]: Found implementation of procedure ideapad_acpi_remove [2023-04-03 04:31:20,580 INFO L138 BoogieDeclarations]: Found implementation of procedure ideapad_acpi_notify [2023-04-03 04:31:20,580 INFO L138 BoogieDeclarations]: Found implementation of procedure ideapad_acpi_resume [2023-04-03 04:31:20,580 INFO L138 BoogieDeclarations]: Found implementation of procedure ideapad_acpi_driver_init [2023-04-03 04:31:20,580 INFO L138 BoogieDeclarations]: Found implementation of procedure ideapad_acpi_driver_exit [2023-04-03 04:31:20,580 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2023-04-03 04:31:20,580 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_1 [2023-04-03 04:31:20,581 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_2 [2023-04-03 04:31:20,581 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_3 [2023-04-03 04:31:20,581 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_trylock_4 [2023-04-03 04:31:20,581 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_5 [2023-04-03 04:31:20,581 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_6 [2023-04-03 04:31:20,581 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_7 [2023-04-03 04:31:20,581 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_8 [2023-04-03 04:31:20,581 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_9 [2023-04-03 04:31:20,582 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_10 [2023-04-03 04:31:20,582 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2023-04-03 04:31:20,582 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2023-04-03 04:31:20,582 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_trap [2023-04-03 04:31:20,582 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_interruptible_cred_guard_mutex_of_signal_struct [2023-04-03 04:31:20,582 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_killable_cred_guard_mutex_of_signal_struct [2023-04-03 04:31:20,582 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_cred_guard_mutex_of_signal_struct [2023-04-03 04:31:20,582 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_trylock_cred_guard_mutex_of_signal_struct [2023-04-03 04:31:20,582 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_dec_and_mutex_lock_cred_guard_mutex_of_signal_struct [2023-04-03 04:31:20,583 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_is_locked_cred_guard_mutex_of_signal_struct [2023-04-03 04:31:20,583 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_cred_guard_mutex_of_signal_struct [2023-04-03 04:31:20,583 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_interruptible_lock [2023-04-03 04:31:20,583 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_killable_lock [2023-04-03 04:31:20,584 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_lock [2023-04-03 04:31:20,584 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_trylock_lock [2023-04-03 04:31:20,584 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_dec_and_mutex_lock_lock [2023-04-03 04:31:20,584 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_is_locked_lock [2023-04-03 04:31:20,584 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_lock [2023-04-03 04:31:20,585 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_interruptible_lock_of_fb_info [2023-04-03 04:31:20,585 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_killable_lock_of_fb_info [2023-04-03 04:31:20,585 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_lock_of_fb_info [2023-04-03 04:31:20,585 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_trylock_lock_of_fb_info [2023-04-03 04:31:20,585 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_dec_and_mutex_lock_lock_of_fb_info [2023-04-03 04:31:20,585 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_is_locked_lock_of_fb_info [2023-04-03 04:31:20,585 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_lock_of_fb_info [2023-04-03 04:31:20,585 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_interruptible_mutex_of_device [2023-04-03 04:31:20,585 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_killable_mutex_of_device [2023-04-03 04:31:20,585 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_mutex_of_device [2023-04-03 04:31:20,585 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_trylock_mutex_of_device [2023-04-03 04:31:20,585 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_dec_and_mutex_lock_mutex_of_device [2023-04-03 04:31:20,585 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_is_locked_mutex_of_device [2023-04-03 04:31:20,586 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_mutex_of_device [2023-04-03 04:31:20,586 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_interruptible_update_lock_of_backlight_device [2023-04-03 04:31:20,586 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_killable_update_lock_of_backlight_device [2023-04-03 04:31:20,586 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_update_lock_of_backlight_device [2023-04-03 04:31:20,586 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_trylock_update_lock_of_backlight_device [2023-04-03 04:31:20,586 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_dec_and_mutex_lock_update_lock_of_backlight_device [2023-04-03 04:31:20,586 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_is_locked_update_lock_of_backlight_device [2023-04-03 04:31:20,586 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_update_lock_of_backlight_device [2023-04-03 04:31:20,586 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize [2023-04-03 04:31:20,587 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2023-04-03 04:31:20,587 INFO L138 BoogieDeclarations]: Found implementation of procedure acpi_bus_register_driver [2023-04-03 04:31:20,587 INFO L138 BoogieDeclarations]: Found implementation of procedure acpi_bus_unregister_driver [2023-04-03 04:31:20,587 INFO L138 BoogieDeclarations]: Found implementation of procedure acpi_evaluate_integer [2023-04-03 04:31:20,587 INFO L138 BoogieDeclarations]: Found implementation of procedure acpi_evaluate_object [2023-04-03 04:31:20,587 INFO L138 BoogieDeclarations]: Found implementation of procedure acpi_video_backlight_support [2023-04-03 04:31:20,587 INFO L138 BoogieDeclarations]: Found implementation of procedure backlight_device_register [2023-04-03 04:31:20,587 INFO L138 BoogieDeclarations]: Found implementation of procedure backlight_device_unregister [2023-04-03 04:31:20,588 INFO L138 BoogieDeclarations]: Found implementation of procedure backlight_force_update [2023-04-03 04:31:20,589 INFO L138 BoogieDeclarations]: Found implementation of procedure debugfs_create_dir [2023-04-03 04:31:20,589 INFO L138 BoogieDeclarations]: Found implementation of procedure debugfs_create_file [2023-04-03 04:31:20,589 INFO L138 BoogieDeclarations]: Found implementation of procedure debugfs_remove_recursive [2023-04-03 04:31:20,589 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_get_drvdata [2023-04-03 04:31:20,590 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_set_drvdata [2023-04-03 04:31:20,592 INFO L138 BoogieDeclarations]: Found implementation of procedure i8042_command [2023-04-03 04:31:20,592 INFO L138 BoogieDeclarations]: Found implementation of procedure input_free_device [2023-04-03 04:31:20,597 INFO L138 BoogieDeclarations]: Found implementation of procedure input_register_device [2023-04-03 04:31:20,598 INFO L138 BoogieDeclarations]: Found implementation of procedure input_unregister_device [2023-04-03 04:31:20,598 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_ideapad_pm_complete_2 [2023-04-03 04:31:20,598 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_ideapad_pm_freeze_2 [2023-04-03 04:31:20,598 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_ideapad_pm_freeze_late_2 [2023-04-03 04:31:20,598 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_ideapad_pm_freeze_noirq_2 [2023-04-03 04:31:20,598 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_ideapad_pm_poweroff_2 [2023-04-03 04:31:20,598 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_ideapad_pm_poweroff_late_2 [2023-04-03 04:31:20,598 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_ideapad_pm_poweroff_noirq_2 [2023-04-03 04:31:20,598 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_ideapad_pm_prepare_2 [2023-04-03 04:31:20,598 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_ideapad_pm_restore_early_2 [2023-04-03 04:31:20,598 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_ideapad_pm_restore_noirq_2 [2023-04-03 04:31:20,598 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_ideapad_pm_resume_early_2 [2023-04-03 04:31:20,599 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_ideapad_pm_resume_noirq_2 [2023-04-03 04:31:20,599 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_ideapad_pm_suspend_2 [2023-04-03 04:31:20,599 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_ideapad_pm_suspend_late_2 [2023-04-03 04:31:20,599 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_ideapad_pm_suspend_noirq_2 [2023-04-03 04:31:20,599 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_ideapad_pm_thaw_early_2 [2023-04-03 04:31:20,599 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_ideapad_pm_thaw_noirq_2 [2023-04-03 04:31:20,599 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock [2023-04-03 04:31:20,599 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_trylock [2023-04-03 04:31:20,599 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2023-04-03 04:31:20,599 INFO L138 BoogieDeclarations]: Found implementation of procedure platform_device_add [2023-04-03 04:31:20,599 INFO L138 BoogieDeclarations]: Found implementation of procedure platform_device_alloc [2023-04-03 04:31:20,599 INFO L138 BoogieDeclarations]: Found implementation of procedure platform_device_del [2023-04-03 04:31:20,599 INFO L138 BoogieDeclarations]: Found implementation of procedure platform_device_put [2023-04-03 04:31:20,599 INFO L138 BoogieDeclarations]: Found implementation of procedure platform_device_unregister [2023-04-03 04:31:20,599 INFO L138 BoogieDeclarations]: Found implementation of procedure printk [2023-04-03 04:31:20,599 INFO L138 BoogieDeclarations]: Found implementation of procedure rfkill_alloc [2023-04-03 04:31:20,599 INFO L138 BoogieDeclarations]: Found implementation of procedure rfkill_destroy [2023-04-03 04:31:20,600 INFO L138 BoogieDeclarations]: Found implementation of procedure rfkill_init_sw_state [2023-04-03 04:31:20,600 INFO L138 BoogieDeclarations]: Found implementation of procedure rfkill_register [2023-04-03 04:31:20,600 INFO L138 BoogieDeclarations]: Found implementation of procedure rfkill_set_hw_state [2023-04-03 04:31:20,600 INFO L138 BoogieDeclarations]: Found implementation of procedure rfkill_unregister [2023-04-03 04:31:20,600 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule [2023-04-03 04:31:20,600 INFO L138 BoogieDeclarations]: Found implementation of procedure seq_lseek [2023-04-03 04:31:20,600 INFO L138 BoogieDeclarations]: Found implementation of procedure seq_printf [2023-04-03 04:31:20,600 INFO L138 BoogieDeclarations]: Found implementation of procedure seq_read [2023-04-03 04:31:20,600 INFO L138 BoogieDeclarations]: Found implementation of procedure single_open [2023-04-03 04:31:20,600 INFO L138 BoogieDeclarations]: Found implementation of procedure single_release [2023-04-03 04:31:20,600 INFO L138 BoogieDeclarations]: Found implementation of procedure sparse_keymap_free [2023-04-03 04:31:20,600 INFO L138 BoogieDeclarations]: Found implementation of procedure sparse_keymap_report_event [2023-04-03 04:31:20,600 INFO L138 BoogieDeclarations]: Found implementation of procedure sparse_keymap_setup [2023-04-03 04:31:20,600 INFO L138 BoogieDeclarations]: Found implementation of procedure sysfs_create_group [2023-04-03 04:31:20,600 INFO L138 BoogieDeclarations]: Found implementation of procedure sysfs_remove_group [2023-04-03 04:31:20,600 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2023-04-03 04:31:20,601 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2023-04-03 04:31:20,601 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2023-04-03 04:31:20,601 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2023-04-03 04:31:20,601 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_perror_fail [2023-04-03 04:31:20,601 INFO L130 BoogieDeclarations]: Found specification of procedure __assert [2023-04-03 04:31:20,601 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2023-04-03 04:31:20,601 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-04-03 04:31:20,601 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2023-04-03 04:31:20,602 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2023-04-03 04:31:20,602 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-04-03 04:31:20,602 INFO L130 BoogieDeclarations]: Found specification of procedure variable_test_bit [2023-04-03 04:31:20,602 INFO L130 BoogieDeclarations]: Found specification of procedure printk [2023-04-03 04:31:20,602 INFO L130 BoogieDeclarations]: Found specification of procedure sprintf [2023-04-03 04:31:20,602 INFO L130 BoogieDeclarations]: Found specification of procedure sscanf [2023-04-03 04:31:20,602 INFO L130 BoogieDeclarations]: Found specification of procedure memset [2023-04-03 04:31:20,602 INFO L130 BoogieDeclarations]: Found specification of procedure PTR_ERR [2023-04-03 04:31:20,602 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2023-04-03 04:31:20,602 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_trylock [2023-04-03 04:31:20,603 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_trylock_4 [2023-04-03 04:31:20,603 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2023-04-03 04:31:20,603 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_2 [2023-04-03 04:31:20,603 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_5 [2023-04-03 04:31:20,603 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_7 [2023-04-03 04:31:20,603 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_9 [2023-04-03 04:31:20,603 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_10 [2023-04-03 04:31:20,603 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock [2023-04-03 04:31:20,603 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_1 [2023-04-03 04:31:20,603 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_3 [2023-04-03 04:31:20,603 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_6 [2023-04-03 04:31:20,603 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_8 [2023-04-03 04:31:20,603 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_cred_guard_mutex_of_signal_struct [2023-04-03 04:31:20,603 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_cred_guard_mutex_of_signal_struct [2023-04-03 04:31:20,603 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_lock [2023-04-03 04:31:20,603 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_lock [2023-04-03 04:31:20,604 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_lock_of_fb_info [2023-04-03 04:31:20,604 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_mutex_of_device [2023-04-03 04:31:20,604 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_trylock_mutex_of_device [2023-04-03 04:31:20,604 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_mutex_of_device [2023-04-03 04:31:20,604 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_update_lock_of_backlight_device [2023-04-03 04:31:20,604 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_update_lock_of_backlight_device [2023-04-03 04:31:20,604 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2023-04-03 04:31:20,604 INFO L130 BoogieDeclarations]: Found specification of procedure sysfs_create_group [2023-04-03 04:31:20,604 INFO L130 BoogieDeclarations]: Found specification of procedure sysfs_remove_group [2023-04-03 04:31:20,604 INFO L130 BoogieDeclarations]: Found specification of procedure dev_get_drvdata [2023-04-03 04:31:20,604 INFO L130 BoogieDeclarations]: Found specification of procedure dev_set_drvdata [2023-04-03 04:31:20,604 INFO L130 BoogieDeclarations]: Found specification of procedure schedule [2023-04-03 04:31:20,604 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2023-04-03 04:31:20,604 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-04-03 04:31:20,604 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2023-04-03 04:31:20,604 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2023-04-03 04:31:20,605 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2023-04-03 04:31:20,605 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-04-03 04:31:20,605 INFO L130 BoogieDeclarations]: Found specification of procedure __kmalloc [2023-04-03 04:31:20,605 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2023-04-03 04:31:20,605 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2023-04-03 04:31:20,605 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2023-04-03 04:31:20,605 INFO L130 BoogieDeclarations]: Found specification of procedure acpi_evaluate_object [2023-04-03 04:31:20,605 INFO L130 BoogieDeclarations]: Found specification of procedure acpi_evaluate_integer [2023-04-03 04:31:20,605 INFO L130 BoogieDeclarations]: Found specification of procedure acpi_bus_register_driver [2023-04-03 04:31:20,605 INFO L130 BoogieDeclarations]: Found specification of procedure acpi_bus_unregister_driver [2023-04-03 04:31:20,605 INFO L130 BoogieDeclarations]: Found specification of procedure acpi_video_backlight_support [2023-04-03 04:31:20,605 INFO L130 BoogieDeclarations]: Found specification of procedure rfkill_alloc [2023-04-03 04:31:20,605 INFO L130 BoogieDeclarations]: Found specification of procedure rfkill_register [2023-04-03 04:31:20,605 INFO L130 BoogieDeclarations]: Found specification of procedure rfkill_unregister [2023-04-03 04:31:20,605 INFO L130 BoogieDeclarations]: Found specification of procedure rfkill_destroy [2023-04-03 04:31:20,605 INFO L130 BoogieDeclarations]: Found specification of procedure rfkill_set_hw_state [2023-04-03 04:31:20,605 INFO L130 BoogieDeclarations]: Found specification of procedure rfkill_init_sw_state [2023-04-03 04:31:20,606 INFO L130 BoogieDeclarations]: Found specification of procedure platform_device_unregister [2023-04-03 04:31:20,606 INFO L130 BoogieDeclarations]: Found specification of procedure platform_device_alloc [2023-04-03 04:31:20,606 INFO L130 BoogieDeclarations]: Found specification of procedure platform_device_add [2023-04-03 04:31:20,606 INFO L130 BoogieDeclarations]: Found specification of procedure platform_device_del [2023-04-03 04:31:20,606 INFO L130 BoogieDeclarations]: Found specification of procedure platform_device_put [2023-04-03 04:31:20,606 INFO L130 BoogieDeclarations]: Found specification of procedure platform_set_drvdata [2023-04-03 04:31:20,606 INFO L130 BoogieDeclarations]: Found specification of procedure input_allocate_device [2023-04-03 04:31:20,606 INFO L130 BoogieDeclarations]: Found specification of procedure input_free_device [2023-04-03 04:31:20,606 INFO L130 BoogieDeclarations]: Found specification of procedure input_register_device [2023-04-03 04:31:20,606 INFO L130 BoogieDeclarations]: Found specification of procedure input_unregister_device [2023-04-03 04:31:20,606 INFO L130 BoogieDeclarations]: Found specification of procedure sparse_keymap_setup [2023-04-03 04:31:20,607 INFO L130 BoogieDeclarations]: Found specification of procedure sparse_keymap_free [2023-04-03 04:31:20,610 INFO L130 BoogieDeclarations]: Found specification of procedure sparse_keymap_report_event [2023-04-03 04:31:20,610 INFO L130 BoogieDeclarations]: Found specification of procedure backlight_update_status [2023-04-03 04:31:20,611 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2023-04-03 04:31:20,611 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-04-03 04:31:20,611 INFO L130 BoogieDeclarations]: Found specification of procedure backlight_device_register [2023-04-03 04:31:20,611 INFO L130 BoogieDeclarations]: Found specification of procedure backlight_device_unregister [2023-04-03 04:31:20,611 INFO L130 BoogieDeclarations]: Found specification of procedure backlight_force_update [2023-04-03 04:31:20,611 INFO L130 BoogieDeclarations]: Found specification of procedure seq_read [2023-04-03 04:31:20,611 INFO L130 BoogieDeclarations]: Found specification of procedure seq_lseek [2023-04-03 04:31:20,611 INFO L130 BoogieDeclarations]: Found specification of procedure seq_printf [2023-04-03 04:31:20,611 INFO L130 BoogieDeclarations]: Found specification of procedure single_open [2023-04-03 04:31:20,611 INFO L130 BoogieDeclarations]: Found specification of procedure single_release [2023-04-03 04:31:20,611 INFO L130 BoogieDeclarations]: Found specification of procedure debugfs_create_file [2023-04-03 04:31:20,612 INFO L130 BoogieDeclarations]: Found specification of procedure debugfs_create_dir [2023-04-03 04:31:20,612 INFO L130 BoogieDeclarations]: Found specification of procedure debugfs_remove_recursive [2023-04-03 04:31:20,612 INFO L130 BoogieDeclarations]: Found specification of procedure i8042_command [2023-04-03 04:31:20,612 INFO L130 BoogieDeclarations]: Found specification of procedure read_method_int [2023-04-03 04:31:20,612 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-04-03 04:31:20,612 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-04-03 04:31:20,612 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-04-03 04:31:20,612 INFO L130 BoogieDeclarations]: Found specification of procedure method_vpcr [2023-04-03 04:31:20,612 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-04-03 04:31:20,612 INFO L130 BoogieDeclarations]: Found specification of procedure method_vpcw [2023-04-03 04:31:20,612 INFO L130 BoogieDeclarations]: Found specification of procedure read_ec_data [2023-04-03 04:31:20,612 INFO L130 BoogieDeclarations]: Found specification of procedure write_ec_cmd [2023-04-03 04:31:20,612 INFO L130 BoogieDeclarations]: Found specification of procedure debugfs_status_show [2023-04-03 04:31:20,612 INFO L130 BoogieDeclarations]: Found specification of procedure debugfs_status_open [2023-04-03 04:31:20,612 INFO L130 BoogieDeclarations]: Found specification of procedure debugfs_cfg_show [2023-04-03 04:31:20,612 INFO L130 BoogieDeclarations]: Found specification of procedure debugfs_cfg_open [2023-04-03 04:31:20,613 INFO L130 BoogieDeclarations]: Found specification of procedure ideapad_debugfs_init [2023-04-03 04:31:20,613 INFO L130 BoogieDeclarations]: Found specification of procedure ideapad_debugfs_exit [2023-04-03 04:31:20,613 INFO L130 BoogieDeclarations]: Found specification of procedure show_ideapad_cam [2023-04-03 04:31:20,613 INFO L130 BoogieDeclarations]: Found specification of procedure store_ideapad_cam [2023-04-03 04:31:20,613 INFO L130 BoogieDeclarations]: Found specification of procedure show_ideapad_fan [2023-04-03 04:31:20,613 INFO L130 BoogieDeclarations]: Found specification of procedure store_ideapad_fan [2023-04-03 04:31:20,613 INFO L130 BoogieDeclarations]: Found specification of procedure ideapad_is_visible [2023-04-03 04:31:20,613 INFO L130 BoogieDeclarations]: Found specification of procedure ideapad_rfk_set [2023-04-03 04:31:20,613 INFO L130 BoogieDeclarations]: Found specification of procedure ideapad_sync_rfk_state [2023-04-03 04:31:20,613 INFO L130 BoogieDeclarations]: Found specification of procedure ideapad_register_rfkill [2023-04-03 04:31:20,613 INFO L130 BoogieDeclarations]: Found specification of procedure ideapad_unregister_rfkill [2023-04-03 04:31:20,613 INFO L130 BoogieDeclarations]: Found specification of procedure ideapad_platform_init [2023-04-03 04:31:20,613 INFO L130 BoogieDeclarations]: Found specification of procedure ideapad_platform_exit [2023-04-03 04:31:20,613 INFO L130 BoogieDeclarations]: Found specification of procedure ideapad_input_init [2023-04-03 04:31:20,613 INFO L130 BoogieDeclarations]: Found specification of procedure ideapad_input_exit [2023-04-03 04:31:20,613 INFO L130 BoogieDeclarations]: Found specification of procedure ideapad_input_report [2023-04-03 04:31:20,613 INFO L130 BoogieDeclarations]: Found specification of procedure ideapad_input_novokey [2023-04-03 04:31:20,613 INFO L130 BoogieDeclarations]: Found specification of procedure ideapad_check_special_buttons [2023-04-03 04:31:20,614 INFO L130 BoogieDeclarations]: Found specification of procedure ideapad_backlight_get_brightness [2023-04-03 04:31:20,614 INFO L130 BoogieDeclarations]: Found specification of procedure ideapad_backlight_update_status [2023-04-03 04:31:20,614 INFO L130 BoogieDeclarations]: Found specification of procedure ideapad_backlight_init [2023-04-03 04:31:20,614 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2023-04-03 04:31:20,614 INFO L130 BoogieDeclarations]: Found specification of procedure ideapad_backlight_exit [2023-04-03 04:31:20,614 INFO L130 BoogieDeclarations]: Found specification of procedure ideapad_backlight_notify_power [2023-04-03 04:31:20,614 INFO L130 BoogieDeclarations]: Found specification of procedure ideapad_backlight_notify_brightness [2023-04-03 04:31:20,614 INFO L130 BoogieDeclarations]: Found specification of procedure ideapad_sync_touchpad_state [2023-04-03 04:31:20,614 INFO L130 BoogieDeclarations]: Found specification of procedure ideapad_acpi_add [2023-04-03 04:31:20,614 INFO L130 BoogieDeclarations]: Found specification of procedure ideapad_acpi_remove [2023-04-03 04:31:20,614 INFO L130 BoogieDeclarations]: Found specification of procedure ideapad_acpi_notify [2023-04-03 04:31:20,614 INFO L130 BoogieDeclarations]: Found specification of procedure ideapad_acpi_resume [2023-04-03 04:31:20,614 INFO L130 BoogieDeclarations]: Found specification of procedure ideapad_acpi_driver_init [2023-04-03 04:31:20,614 INFO L130 BoogieDeclarations]: Found specification of procedure ideapad_acpi_driver_exit [2023-04-03 04:31:20,614 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_ideapad_pm_suspend_noirq_2 [2023-04-03 04:31:20,614 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_ideapad_pm_complete_2 [2023-04-03 04:31:20,615 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_ideapad_pm_resume_noirq_2 [2023-04-03 04:31:20,615 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_ideapad_pm_thaw_early_2 [2023-04-03 04:31:20,615 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_ideapad_pm_poweroff_late_2 [2023-04-03 04:31:20,615 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_ideapad_pm_resume_early_2 [2023-04-03 04:31:20,615 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_ideapad_pm_freeze_2 [2023-04-03 04:31:20,615 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize [2023-04-03 04:31:20,615 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_ideapad_pm_poweroff_noirq_2 [2023-04-03 04:31:20,615 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_ideapad_pm_suspend_late_2 [2023-04-03 04:31:20,615 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_ideapad_pm_prepare_2 [2023-04-03 04:31:20,615 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_ideapad_pm_freeze_late_2 [2023-04-03 04:31:20,615 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2023-04-03 04:31:20,615 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_ideapad_pm_restore_early_2 [2023-04-03 04:31:20,615 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_ideapad_pm_suspend_2 [2023-04-03 04:31:20,615 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_ideapad_pm_thaw_noirq_2 [2023-04-03 04:31:20,615 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_ideapad_pm_poweroff_2 [2023-04-03 04:31:20,615 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_ideapad_pm_freeze_noirq_2 [2023-04-03 04:31:20,615 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_ideapad_pm_restore_noirq_2 [2023-04-03 04:31:20,616 INFO L130 BoogieDeclarations]: Found specification of procedure main [2023-04-03 04:31:20,616 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2023-04-03 04:31:20,616 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_trap [2023-04-03 04:31:20,616 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_interruptible_cred_guard_mutex_of_signal_struct [2023-04-03 04:31:20,616 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_killable_cred_guard_mutex_of_signal_struct [2023-04-03 04:31:20,616 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_trylock_cred_guard_mutex_of_signal_struct [2023-04-03 04:31:20,616 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_dec_and_mutex_lock_cred_guard_mutex_of_signal_struct [2023-04-03 04:31:20,616 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_is_locked_cred_guard_mutex_of_signal_struct [2023-04-03 04:31:20,616 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_interruptible_lock [2023-04-03 04:31:20,616 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_killable_lock [2023-04-03 04:31:20,616 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_trylock_lock [2023-04-03 04:31:20,616 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_dec_and_mutex_lock_lock [2023-04-03 04:31:20,616 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_is_locked_lock [2023-04-03 04:31:20,616 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_interruptible_lock_of_fb_info [2023-04-03 04:31:20,616 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_killable_lock_of_fb_info [2023-04-03 04:31:20,616 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_lock_of_fb_info [2023-04-03 04:31:20,617 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_trylock_lock_of_fb_info [2023-04-03 04:31:20,617 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_dec_and_mutex_lock_lock_of_fb_info [2023-04-03 04:31:20,617 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_is_locked_lock_of_fb_info [2023-04-03 04:31:20,617 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_interruptible_mutex_of_device [2023-04-03 04:31:20,617 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_killable_mutex_of_device [2023-04-03 04:31:20,617 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_dec_and_mutex_lock_mutex_of_device [2023-04-03 04:31:20,617 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_is_locked_mutex_of_device [2023-04-03 04:31:20,617 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_interruptible_update_lock_of_backlight_device [2023-04-03 04:31:20,617 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_killable_update_lock_of_backlight_device [2023-04-03 04:31:20,617 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_trylock_update_lock_of_backlight_device [2023-04-03 04:31:20,617 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_dec_and_mutex_lock_update_lock_of_backlight_device [2023-04-03 04:31:20,617 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_is_locked_update_lock_of_backlight_device [2023-04-03 04:31:20,617 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uint [2023-04-03 04:31:20,617 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_bool [2023-04-03 04:31:20,617 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_long [2023-04-03 04:31:20,617 INFO L130 BoogieDeclarations]: Found specification of procedure free [2023-04-03 04:31:20,617 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2023-04-03 04:31:20,618 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-04-03 04:31:20,618 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2023-04-03 04:31:20,618 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2023-04-03 04:31:20,618 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2023-04-03 04:31:20,618 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-04-03 04:31:21,282 INFO L236 CfgBuilder]: Building ICFG [2023-04-03 04:31:21,286 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-04-03 04:31:31,631 INFO L277 CfgBuilder]: Performing block encoding [2023-04-03 04:31:32,377 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-04-03 04:31:32,377 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-04-03 04:31:32,382 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.04 04:31:32 BoogieIcfgContainer [2023-04-03 04:31:32,382 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-04-03 04:31:32,384 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-04-03 04:31:32,384 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-04-03 04:31:32,387 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-04-03 04:31:32,387 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.04 04:31:18" (1/3) ... [2023-04-03 04:31:32,388 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@38701000 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.04 04:31:32, skipping insertion in model container [2023-04-03 04:31:32,388 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.04 04:31:20" (2/3) ... [2023-04-03 04:31:32,388 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@38701000 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.04 04:31:32, skipping insertion in model container [2023-04-03 04:31:32,388 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.04 04:31:32" (3/3) ... [2023-04-03 04:31:32,389 INFO L112 eAbstractionObserver]: Analyzing ICFG 32_7a_cilled_linux-3.8-rc1-drivers--platform--x86--ideapad-laptop.ko-main.cil.out.i [2023-04-03 04:31:32,406 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-04-03 04:31:32,406 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-04-03 04:31:32,466 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-04-03 04:31:32,472 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;@1dd1842b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-04-03 04:31:32,472 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-04-03 04:31:32,481 INFO L276 IsEmpty]: Start isEmpty. Operand has 1026 states, 613 states have (on average 1.3376835236541598) internal successors, (820), 635 states have internal predecessors, (820), 249 states have call successors, (249), 123 states have call predecessors, (249), 123 states have return successors, (249), 241 states have call predecessors, (249), 249 states have call successors, (249) [2023-04-03 04:31:32,494 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2023-04-03 04:31:32,494 INFO L187 NwaCegarLoop]: Found error trace [2023-04-03 04:31:32,495 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-03 04:31:32,495 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-03 04:31:32,499 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-03 04:31:32,500 INFO L85 PathProgramCache]: Analyzing trace with hash 1275606429, now seen corresponding path program 1 times [2023-04-03 04:31:32,508 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-03 04:31:32,508 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1941744409] [2023-04-03 04:31:32,509 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-03 04:31:32,509 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-03 04:31:32,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-03 04:31:33,278 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-04-03 04:31:33,279 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-03 04:31:33,279 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1941744409] [2023-04-03 04:31:33,280 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1941744409] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-03 04:31:33,280 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-03 04:31:33,280 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-04-03 04:31:33,282 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [732828453] [2023-04-03 04:31:33,282 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-03 04:31:33,287 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-04-03 04:31:33,288 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-03 04:31:33,328 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-04-03 04:31:33,328 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-04-03 04:31:33,333 INFO L87 Difference]: Start difference. First operand has 1026 states, 613 states have (on average 1.3376835236541598) internal successors, (820), 635 states have internal predecessors, (820), 249 states have call successors, (249), 123 states have call predecessors, (249), 123 states have return successors, (249), 241 states have call predecessors, (249), 249 states have call successors, (249) Second operand has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 2 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2023-04-03 04:31:35,392 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-04-03 04:31:37,407 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-04-03 04:31:38,292 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-03 04:31:38,292 INFO L93 Difference]: Finished difference Result 2497 states and 3327 transitions. [2023-04-03 04:31:38,294 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-04-03 04:31:38,295 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 2 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 33 [2023-04-03 04:31:38,295 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-03 04:31:38,315 INFO L225 Difference]: With dead ends: 2497 [2023-04-03 04:31:38,316 INFO L226 Difference]: Without dead ends: 1650 [2023-04-03 04:31:38,325 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 04:31:38,327 INFO L413 NwaCegarLoop]: 961 mSDtfsCounter, 1060 mSDsluCounter, 949 mSDsCounter, 0 mSdLazyCounter, 310 mSolverCounterSat, 3 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1060 SdHoareTripleChecker+Valid, 1910 SdHoareTripleChecker+Invalid, 315 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 310 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.7s IncrementalHoareTripleChecker+Time [2023-04-03 04:31:38,328 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1060 Valid, 1910 Invalid, 315 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 310 Invalid, 2 Unknown, 0 Unchecked, 4.7s Time] [2023-04-03 04:31:38,351 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1650 states. [2023-04-03 04:31:38,488 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1650 to 1646. [2023-04-03 04:31:38,492 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1646 states, 1012 states have (on average 1.3616600790513833) internal successors, (1378), 1048 states have internal predecessors, (1378), 401 states have call successors, (401), 235 states have call predecessors, (401), 232 states have return successors, (392), 376 states have call predecessors, (392), 392 states have call successors, (392) [2023-04-03 04:31:38,502 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1646 states to 1646 states and 2171 transitions. [2023-04-03 04:31:38,504 INFO L78 Accepts]: Start accepts. Automaton has 1646 states and 2171 transitions. Word has length 33 [2023-04-03 04:31:38,505 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-03 04:31:38,505 INFO L495 AbstractCegarLoop]: Abstraction has 1646 states and 2171 transitions. [2023-04-03 04:31:38,505 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 2 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2023-04-03 04:31:38,505 INFO L276 IsEmpty]: Start isEmpty. Operand 1646 states and 2171 transitions. [2023-04-03 04:31:38,509 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2023-04-03 04:31:38,509 INFO L187 NwaCegarLoop]: Found error trace [2023-04-03 04:31:38,509 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-03 04:31:38,509 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-04-03 04:31:38,510 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-03 04:31:38,510 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-03 04:31:38,510 INFO L85 PathProgramCache]: Analyzing trace with hash -468128366, now seen corresponding path program 1 times [2023-04-03 04:31:38,510 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-03 04:31:38,511 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1235013262] [2023-04-03 04:31:38,511 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-03 04:31:38,511 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-03 04:31:38,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-03 04:31:38,826 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-04-03 04:31:38,827 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-03 04:31:38,828 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1235013262] [2023-04-03 04:31:38,828 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1235013262] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-03 04:31:38,828 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-03 04:31:38,828 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-04-03 04:31:38,828 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1084408636] [2023-04-03 04:31:38,828 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-03 04:31:38,830 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-04-03 04:31:38,830 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-03 04:31:38,831 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-04-03 04:31:38,832 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-04-03 04:31:38,832 INFO L87 Difference]: Start difference. First operand 1646 states and 2171 transitions. Second operand has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 3 states have internal predecessors, (25), 3 states have call successors, (7), 3 states have call predecessors, (7), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2023-04-03 04:31:40,865 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-04-03 04:31:42,876 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-04-03 04:31:43,242 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-03 04:31:43,242 INFO L93 Difference]: Finished difference Result 1648 states and 2172 transitions. [2023-04-03 04:31:43,243 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-04-03 04:31:43,243 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 3 states have internal predecessors, (25), 3 states have call successors, (7), 3 states have call predecessors, (7), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 36 [2023-04-03 04:31:43,243 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-03 04:31:43,254 INFO L225 Difference]: With dead ends: 1648 [2023-04-03 04:31:43,255 INFO L226 Difference]: Without dead ends: 1645 [2023-04-03 04:31:43,256 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 04:31:43,258 INFO L413 NwaCegarLoop]: 955 mSDtfsCounter, 1080 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 151 mSolverCounterSat, 0 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1080 SdHoareTripleChecker+Valid, 960 SdHoareTripleChecker+Invalid, 153 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 151 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.3s IncrementalHoareTripleChecker+Time [2023-04-03 04:31:43,261 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1080 Valid, 960 Invalid, 153 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 151 Invalid, 2 Unknown, 0 Unchecked, 4.3s Time] [2023-04-03 04:31:43,266 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1645 states. [2023-04-03 04:31:43,335 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1645 to 1645. [2023-04-03 04:31:43,338 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1645 states, 1012 states have (on average 1.3606719367588933) internal successors, (1377), 1047 states have internal predecessors, (1377), 400 states have call successors, (400), 235 states have call predecessors, (400), 232 states have return successors, (392), 376 states have call predecessors, (392), 392 states have call successors, (392) [2023-04-03 04:31:43,349 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1645 states to 1645 states and 2169 transitions. [2023-04-03 04:31:43,350 INFO L78 Accepts]: Start accepts. Automaton has 1645 states and 2169 transitions. Word has length 36 [2023-04-03 04:31:43,351 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-03 04:31:43,351 INFO L495 AbstractCegarLoop]: Abstraction has 1645 states and 2169 transitions. [2023-04-03 04:31:43,351 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 3 states have internal predecessors, (25), 3 states have call successors, (7), 3 states have call predecessors, (7), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2023-04-03 04:31:43,351 INFO L276 IsEmpty]: Start isEmpty. Operand 1645 states and 2169 transitions. [2023-04-03 04:31:43,354 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2023-04-03 04:31:43,354 INFO L187 NwaCegarLoop]: Found error trace [2023-04-03 04:31:43,354 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-03 04:31:43,355 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-04-03 04:31:43,355 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-03 04:31:43,356 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-03 04:31:43,357 INFO L85 PathProgramCache]: Analyzing trace with hash -1627634657, now seen corresponding path program 1 times [2023-04-03 04:31:43,357 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-03 04:31:43,357 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1948896926] [2023-04-03 04:31:43,357 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-03 04:31:43,357 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-03 04:31:43,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-03 04:31:43,704 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-04-03 04:31:43,704 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-03 04:31:43,704 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1948896926] [2023-04-03 04:31:43,704 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1948896926] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-03 04:31:43,704 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-03 04:31:43,704 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-04-03 04:31:43,705 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [913393674] [2023-04-03 04:31:43,705 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-03 04:31:43,705 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-04-03 04:31:43,705 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-03 04:31:43,706 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-04-03 04:31:43,706 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-04-03 04:31:43,706 INFO L87 Difference]: Start difference. First operand 1645 states and 2169 transitions. Second operand has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 3 states have internal predecessors, (26), 3 states have call successors, (7), 3 states have call predecessors, (7), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2023-04-03 04:31:45,742 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-04-03 04:31:47,751 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-04-03 04:31:48,076 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-03 04:31:48,077 INFO L93 Difference]: Finished difference Result 1647 states and 2170 transitions. [2023-04-03 04:31:48,077 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-04-03 04:31:48,077 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 3 states have internal predecessors, (26), 3 states have call successors, (7), 3 states have call predecessors, (7), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 37 [2023-04-03 04:31:48,078 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-03 04:31:48,087 INFO L225 Difference]: With dead ends: 1647 [2023-04-03 04:31:48,087 INFO L226 Difference]: Without dead ends: 1644 [2023-04-03 04:31:48,089 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 04:31:48,094 INFO L413 NwaCegarLoop]: 953 mSDtfsCounter, 1077 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 151 mSolverCounterSat, 0 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1077 SdHoareTripleChecker+Valid, 958 SdHoareTripleChecker+Invalid, 153 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 151 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.3s IncrementalHoareTripleChecker+Time [2023-04-03 04:31:48,095 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1077 Valid, 958 Invalid, 153 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 151 Invalid, 2 Unknown, 0 Unchecked, 4.3s Time] [2023-04-03 04:31:48,099 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1644 states. [2023-04-03 04:31:48,170 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1644 to 1644. [2023-04-03 04:31:48,174 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1644 states, 1012 states have (on average 1.359683794466403) internal successors, (1376), 1046 states have internal predecessors, (1376), 399 states have call successors, (399), 235 states have call predecessors, (399), 232 states have return successors, (392), 376 states have call predecessors, (392), 392 states have call successors, (392) [2023-04-03 04:31:48,183 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1644 states to 1644 states and 2167 transitions. [2023-04-03 04:31:48,184 INFO L78 Accepts]: Start accepts. Automaton has 1644 states and 2167 transitions. Word has length 37 [2023-04-03 04:31:48,184 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-03 04:31:48,184 INFO L495 AbstractCegarLoop]: Abstraction has 1644 states and 2167 transitions. [2023-04-03 04:31:48,184 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 3 states have internal predecessors, (26), 3 states have call successors, (7), 3 states have call predecessors, (7), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2023-04-03 04:31:48,184 INFO L276 IsEmpty]: Start isEmpty. Operand 1644 states and 2167 transitions. [2023-04-03 04:31:48,186 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2023-04-03 04:31:48,187 INFO L187 NwaCegarLoop]: Found error trace [2023-04-03 04:31:48,187 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-03 04:31:48,187 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-04-03 04:31:48,187 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-03 04:31:48,187 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-03 04:31:48,188 INFO L85 PathProgramCache]: Analyzing trace with hash 1082380853, now seen corresponding path program 1 times [2023-04-03 04:31:48,188 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-03 04:31:48,188 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1365967223] [2023-04-03 04:31:48,188 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-03 04:31:48,188 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-03 04:31:48,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-03 04:31:48,498 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-04-03 04:31:48,500 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-03 04:31:48,501 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1365967223] [2023-04-03 04:31:48,501 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1365967223] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-03 04:31:48,501 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-03 04:31:48,501 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-04-03 04:31:48,502 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1383422749] [2023-04-03 04:31:48,502 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-03 04:31:48,502 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-04-03 04:31:48,502 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-03 04:31:48,503 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-04-03 04:31:48,503 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-04-03 04:31:48,503 INFO L87 Difference]: Start difference. First operand 1644 states and 2167 transitions. Second operand has 3 states, 3 states have (on average 9.0) internal successors, (27), 3 states have internal predecessors, (27), 3 states have call successors, (7), 3 states have call predecessors, (7), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2023-04-03 04:31:50,536 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-04-03 04:31:52,543 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-04-03 04:31:52,911 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-03 04:31:52,912 INFO L93 Difference]: Finished difference Result 1646 states and 2168 transitions. [2023-04-03 04:31:52,912 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-04-03 04:31:52,912 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 9.0) internal successors, (27), 3 states have internal predecessors, (27), 3 states have call successors, (7), 3 states have call predecessors, (7), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 38 [2023-04-03 04:31:52,912 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-03 04:31:52,921 INFO L225 Difference]: With dead ends: 1646 [2023-04-03 04:31:52,921 INFO L226 Difference]: Without dead ends: 1643 [2023-04-03 04:31:52,923 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 04:31:52,925 INFO L413 NwaCegarLoop]: 951 mSDtfsCounter, 1074 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 151 mSolverCounterSat, 0 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1074 SdHoareTripleChecker+Valid, 956 SdHoareTripleChecker+Invalid, 153 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 151 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.3s IncrementalHoareTripleChecker+Time [2023-04-03 04:31:52,925 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1074 Valid, 956 Invalid, 153 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 151 Invalid, 2 Unknown, 0 Unchecked, 4.3s Time] [2023-04-03 04:31:52,929 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1643 states. [2023-04-03 04:31:52,997 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1643 to 1643. [2023-04-03 04:31:53,001 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1643 states, 1012 states have (on average 1.358695652173913) internal successors, (1375), 1045 states have internal predecessors, (1375), 398 states have call successors, (398), 235 states have call predecessors, (398), 232 states have return successors, (392), 376 states have call predecessors, (392), 392 states have call successors, (392) [2023-04-03 04:31:53,014 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1643 states to 1643 states and 2165 transitions. [2023-04-03 04:31:53,015 INFO L78 Accepts]: Start accepts. Automaton has 1643 states and 2165 transitions. Word has length 38 [2023-04-03 04:31:53,017 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-03 04:31:53,017 INFO L495 AbstractCegarLoop]: Abstraction has 1643 states and 2165 transitions. [2023-04-03 04:31:53,017 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.0) internal successors, (27), 3 states have internal predecessors, (27), 3 states have call successors, (7), 3 states have call predecessors, (7), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2023-04-03 04:31:53,017 INFO L276 IsEmpty]: Start isEmpty. Operand 1643 states and 2165 transitions. [2023-04-03 04:31:53,019 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2023-04-03 04:31:53,019 INFO L187 NwaCegarLoop]: Found error trace [2023-04-03 04:31:53,019 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-03 04:31:53,019 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-04-03 04:31:53,020 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-03 04:31:53,020 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-03 04:31:53,020 INFO L85 PathProgramCache]: Analyzing trace with hash -806479390, now seen corresponding path program 1 times [2023-04-03 04:31:53,020 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-03 04:31:53,020 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1426088585] [2023-04-03 04:31:53,020 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-03 04:31:53,020 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-03 04:31:53,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-03 04:31:53,269 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-04-03 04:31:53,270 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-03 04:31:53,270 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1426088585] [2023-04-03 04:31:53,270 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1426088585] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-03 04:31:53,270 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-03 04:31:53,270 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-04-03 04:31:53,270 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [667141928] [2023-04-03 04:31:53,270 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-03 04:31:53,271 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-04-03 04:31:53,271 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-03 04:31:53,271 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-04-03 04:31:53,271 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-04-03 04:31:53,271 INFO L87 Difference]: Start difference. First operand 1643 states and 2165 transitions. Second operand has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 3 states have internal predecessors, (28), 3 states have call successors, (7), 3 states have call predecessors, (7), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2023-04-03 04:31:55,304 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-04-03 04:31:57,310 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-04-03 04:31:57,738 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-03 04:31:57,738 INFO L93 Difference]: Finished difference Result 1645 states and 2166 transitions. [2023-04-03 04:31:57,738 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-04-03 04:31:57,739 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 3 states have internal predecessors, (28), 3 states have call successors, (7), 3 states have call predecessors, (7), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 39 [2023-04-03 04:31:57,739 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-03 04:31:57,748 INFO L225 Difference]: With dead ends: 1645 [2023-04-03 04:31:57,749 INFO L226 Difference]: Without dead ends: 1642 [2023-04-03 04:31:57,750 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 04:31:57,751 INFO L413 NwaCegarLoop]: 949 mSDtfsCounter, 1071 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 151 mSolverCounterSat, 0 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1071 SdHoareTripleChecker+Valid, 954 SdHoareTripleChecker+Invalid, 153 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 151 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.4s IncrementalHoareTripleChecker+Time [2023-04-03 04:31:57,751 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1071 Valid, 954 Invalid, 153 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 151 Invalid, 2 Unknown, 0 Unchecked, 4.4s Time] [2023-04-03 04:31:57,753 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1642 states. [2023-04-03 04:31:57,829 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1642 to 1642. [2023-04-03 04:31:57,832 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1642 states, 1012 states have (on average 1.3577075098814229) internal successors, (1374), 1044 states have internal predecessors, (1374), 397 states have call successors, (397), 235 states have call predecessors, (397), 232 states have return successors, (392), 376 states have call predecessors, (392), 392 states have call successors, (392) [2023-04-03 04:31:57,843 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1642 states to 1642 states and 2163 transitions. [2023-04-03 04:31:57,844 INFO L78 Accepts]: Start accepts. Automaton has 1642 states and 2163 transitions. Word has length 39 [2023-04-03 04:31:57,844 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-03 04:31:57,844 INFO L495 AbstractCegarLoop]: Abstraction has 1642 states and 2163 transitions. [2023-04-03 04:31:57,844 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 3 states have internal predecessors, (28), 3 states have call successors, (7), 3 states have call predecessors, (7), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2023-04-03 04:31:57,844 INFO L276 IsEmpty]: Start isEmpty. Operand 1642 states and 2163 transitions. [2023-04-03 04:31:57,846 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2023-04-03 04:31:57,846 INFO L187 NwaCegarLoop]: Found error trace [2023-04-03 04:31:57,846 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-03 04:31:57,846 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-04-03 04:31:57,847 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-03 04:31:57,847 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-03 04:31:57,847 INFO L85 PathProgramCache]: Analyzing trace with hash 768400088, now seen corresponding path program 1 times [2023-04-03 04:31:57,847 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-03 04:31:57,847 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1684557306] [2023-04-03 04:31:57,847 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-03 04:31:57,848 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-03 04:31:57,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-03 04:31:58,090 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-04-03 04:31:58,090 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-03 04:31:58,090 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1684557306] [2023-04-03 04:31:58,090 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1684557306] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-03 04:31:58,090 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-03 04:31:58,090 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-04-03 04:31:58,091 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1748728881] [2023-04-03 04:31:58,091 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-03 04:31:58,091 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-04-03 04:31:58,091 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-03 04:31:58,092 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-04-03 04:31:58,092 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-04-03 04:31:58,092 INFO L87 Difference]: Start difference. First operand 1642 states and 2163 transitions. Second operand has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 3 states have internal predecessors, (29), 3 states have call successors, (7), 3 states have call predecessors, (7), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2023-04-03 04:32:00,126 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-04-03 04:32:02,134 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-04-03 04:32:02,747 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-03 04:32:02,747 INFO L93 Difference]: Finished difference Result 4079 states and 5308 transitions. [2023-04-03 04:32:02,748 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-04-03 04:32:02,748 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 3 states have internal predecessors, (29), 3 states have call successors, (7), 3 states have call predecessors, (7), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 40 [2023-04-03 04:32:02,748 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-03 04:32:02,765 INFO L225 Difference]: With dead ends: 4079 [2023-04-03 04:32:02,765 INFO L226 Difference]: Without dead ends: 2433 [2023-04-03 04:32:02,773 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 04:32:02,774 INFO L413 NwaCegarLoop]: 957 mSDtfsCounter, 1038 mSDsluCounter, 445 mSDsCounter, 0 mSdLazyCounter, 225 mSolverCounterSat, 4 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1038 SdHoareTripleChecker+Valid, 1402 SdHoareTripleChecker+Invalid, 231 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 225 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.5s IncrementalHoareTripleChecker+Time [2023-04-03 04:32:02,775 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1038 Valid, 1402 Invalid, 231 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 225 Invalid, 2 Unknown, 0 Unchecked, 4.5s Time] [2023-04-03 04:32:02,778 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2433 states. [2023-04-03 04:32:02,907 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2433 to 2424. [2023-04-03 04:32:02,912 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2424 states, 1458 states have (on average 1.3072702331961592) internal successors, (1906), 1498 states have internal predecessors, (1906), 601 states have call successors, (601), 372 states have call predecessors, (601), 364 states have return successors, (602), 577 states have call predecessors, (602), 596 states have call successors, (602) [2023-04-03 04:32:02,929 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2424 states to 2424 states and 3109 transitions. [2023-04-03 04:32:02,930 INFO L78 Accepts]: Start accepts. Automaton has 2424 states and 3109 transitions. Word has length 40 [2023-04-03 04:32:02,931 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-03 04:32:02,931 INFO L495 AbstractCegarLoop]: Abstraction has 2424 states and 3109 transitions. [2023-04-03 04:32:02,931 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 3 states have internal predecessors, (29), 3 states have call successors, (7), 3 states have call predecessors, (7), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2023-04-03 04:32:02,931 INFO L276 IsEmpty]: Start isEmpty. Operand 2424 states and 3109 transitions. [2023-04-03 04:32:02,943 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 275 [2023-04-03 04:32:02,944 INFO L187 NwaCegarLoop]: Found error trace [2023-04-03 04:32:02,944 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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] [2023-04-03 04:32:02,944 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-04-03 04:32:02,944 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-03 04:32:02,945 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-03 04:32:02,945 INFO L85 PathProgramCache]: Analyzing trace with hash -1264489119, now seen corresponding path program 1 times [2023-04-03 04:32:02,945 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-03 04:32:02,945 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1991868975] [2023-04-03 04:32:02,945 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-03 04:32:02,946 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-03 04:32:03,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-03 04:32:03,452 INFO L134 CoverageAnalysis]: Checked inductivity of 194 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 194 trivial. 0 not checked. [2023-04-03 04:32:03,452 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-03 04:32:03,452 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1991868975] [2023-04-03 04:32:03,452 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1991868975] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-03 04:32:03,452 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-03 04:32:03,452 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-04-03 04:32:03,453 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1998154886] [2023-04-03 04:32:03,453 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-03 04:32:03,453 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-04-03 04:32:03,454 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-03 04:32:03,454 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-04-03 04:32:03,454 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-04-03 04:32:03,455 INFO L87 Difference]: Start difference. First operand 2424 states and 3109 transitions. Second operand has 3 states, 3 states have (on average 38.333333333333336) internal successors, (115), 3 states have internal predecessors, (115), 2 states have call successors, (47), 2 states have call predecessors, (47), 1 states have return successors, (40), 2 states have call predecessors, (40), 2 states have call successors, (40) [2023-04-03 04:32:05,486 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-04-03 04:32:06,095 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-03 04:32:06,095 INFO L93 Difference]: Finished difference Result 4397 states and 5701 transitions. [2023-04-03 04:32:06,096 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-04-03 04:32:06,096 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 38.333333333333336) internal successors, (115), 3 states have internal predecessors, (115), 2 states have call successors, (47), 2 states have call predecessors, (47), 1 states have return successors, (40), 2 states have call predecessors, (40), 2 states have call successors, (40) Word has length 274 [2023-04-03 04:32:06,096 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-03 04:32:06,112 INFO L225 Difference]: With dead ends: 4397 [2023-04-03 04:32:06,112 INFO L226 Difference]: Without dead ends: 1982 [2023-04-03 04:32:06,121 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 04:32:06,122 INFO L413 NwaCegarLoop]: 939 mSDtfsCounter, 517 mSDsluCounter, 916 mSDsCounter, 0 mSdLazyCounter, 312 mSolverCounterSat, 2 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 517 SdHoareTripleChecker+Valid, 1855 SdHoareTripleChecker+Invalid, 315 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 312 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2023-04-03 04:32:06,122 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [517 Valid, 1855 Invalid, 315 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 312 Invalid, 1 Unknown, 0 Unchecked, 2.5s Time] [2023-04-03 04:32:06,125 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1982 states. [2023-04-03 04:32:06,225 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1982 to 1974. [2023-04-03 04:32:06,228 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1974 states, 1236 states have (on average 1.3681229773462784) internal successors, (1691), 1258 states have internal predecessors, (1691), 451 states have call successors, (451), 292 states have call predecessors, (451), 286 states have return successors, (449), 437 states have call predecessors, (449), 446 states have call successors, (449) [2023-04-03 04:32:06,236 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1974 states to 1974 states and 2591 transitions. [2023-04-03 04:32:06,237 INFO L78 Accepts]: Start accepts. Automaton has 1974 states and 2591 transitions. Word has length 274 [2023-04-03 04:32:06,238 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-03 04:32:06,238 INFO L495 AbstractCegarLoop]: Abstraction has 1974 states and 2591 transitions. [2023-04-03 04:32:06,238 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 38.333333333333336) internal successors, (115), 3 states have internal predecessors, (115), 2 states have call successors, (47), 2 states have call predecessors, (47), 1 states have return successors, (40), 2 states have call predecessors, (40), 2 states have call successors, (40) [2023-04-03 04:32:06,238 INFO L276 IsEmpty]: Start isEmpty. Operand 1974 states and 2591 transitions. [2023-04-03 04:32:06,246 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 298 [2023-04-03 04:32:06,246 INFO L187 NwaCegarLoop]: Found error trace [2023-04-03 04:32:06,246 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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] [2023-04-03 04:32:06,246 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-04-03 04:32:06,247 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-03 04:32:06,247 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-03 04:32:06,247 INFO L85 PathProgramCache]: Analyzing trace with hash 585178066, now seen corresponding path program 1 times [2023-04-03 04:32:06,247 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-03 04:32:06,247 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [486524911] [2023-04-03 04:32:06,247 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-03 04:32:06,248 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-03 04:32:06,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-03 04:32:06,900 INFO L134 CoverageAnalysis]: Checked inductivity of 202 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 202 trivial. 0 not checked. [2023-04-03 04:32:06,900 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-03 04:32:06,900 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [486524911] [2023-04-03 04:32:06,901 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [486524911] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-03 04:32:06,901 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-03 04:32:06,901 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-04-03 04:32:06,901 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2145063215] [2023-04-03 04:32:06,901 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-03 04:32:06,902 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-04-03 04:32:06,902 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-03 04:32:06,902 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-04-03 04:32:06,903 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-04-03 04:32:06,903 INFO L87 Difference]: Start difference. First operand 1974 states and 2591 transitions. Second operand has 3 states, 3 states have (on average 42.333333333333336) internal successors, (127), 3 states have internal predecessors, (127), 2 states have call successors, (49), 2 states have call predecessors, (49), 1 states have return successors, (42), 2 states have call predecessors, (42), 2 states have call successors, (42) [2023-04-03 04:32:08,936 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-04-03 04:32:10,943 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-04-03 04:32:11,322 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-03 04:32:11,323 INFO L93 Difference]: Finished difference Result 3585 states and 4704 transitions. [2023-04-03 04:32:11,323 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-04-03 04:32:11,323 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 42.333333333333336) internal successors, (127), 3 states have internal predecessors, (127), 2 states have call successors, (49), 2 states have call predecessors, (49), 1 states have return successors, (42), 2 states have call predecessors, (42), 2 states have call successors, (42) Word has length 297 [2023-04-03 04:32:11,325 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-03 04:32:11,334 INFO L225 Difference]: With dead ends: 3585 [2023-04-03 04:32:11,334 INFO L226 Difference]: Without dead ends: 1994 [2023-04-03 04:32:11,339 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 04:32:11,340 INFO L413 NwaCegarLoop]: 931 mSDtfsCounter, 6 mSDsluCounter, 925 mSDsCounter, 0 mSdLazyCounter, 310 mSolverCounterSat, 2 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 1856 SdHoareTripleChecker+Invalid, 314 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 310 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.3s IncrementalHoareTripleChecker+Time [2023-04-03 04:32:11,341 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 1856 Invalid, 314 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 310 Invalid, 2 Unknown, 0 Unchecked, 4.3s Time] [2023-04-03 04:32:11,343 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1994 states. [2023-04-03 04:32:11,435 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1994 to 1978. [2023-04-03 04:32:11,440 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1978 states, 1240 states have (on average 1.3669354838709677) internal successors, (1695), 1262 states have internal predecessors, (1695), 451 states have call successors, (451), 292 states have call predecessors, (451), 286 states have return successors, (449), 437 states have call predecessors, (449), 446 states have call successors, (449) [2023-04-03 04:32:11,447 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1978 states to 1978 states and 2595 transitions. [2023-04-03 04:32:11,448 INFO L78 Accepts]: Start accepts. Automaton has 1978 states and 2595 transitions. Word has length 297 [2023-04-03 04:32:11,448 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-03 04:32:11,448 INFO L495 AbstractCegarLoop]: Abstraction has 1978 states and 2595 transitions. [2023-04-03 04:32:11,449 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 42.333333333333336) internal successors, (127), 3 states have internal predecessors, (127), 2 states have call successors, (49), 2 states have call predecessors, (49), 1 states have return successors, (42), 2 states have call predecessors, (42), 2 states have call successors, (42) [2023-04-03 04:32:11,449 INFO L276 IsEmpty]: Start isEmpty. Operand 1978 states and 2595 transitions. [2023-04-03 04:32:11,457 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 305 [2023-04-03 04:32:11,457 INFO L187 NwaCegarLoop]: Found error trace [2023-04-03 04:32:11,457 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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] [2023-04-03 04:32:11,457 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-04-03 04:32:11,457 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-03 04:32:11,458 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-03 04:32:11,458 INFO L85 PathProgramCache]: Analyzing trace with hash 1219817376, now seen corresponding path program 1 times [2023-04-03 04:32:11,458 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-03 04:32:11,458 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1551966663] [2023-04-03 04:32:11,458 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-03 04:32:11,458 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-03 04:32:11,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-03 04:32:12,151 INFO L134 CoverageAnalysis]: Checked inductivity of 203 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 202 trivial. 0 not checked. [2023-04-03 04:32:12,151 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-03 04:32:12,151 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1551966663] [2023-04-03 04:32:12,151 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1551966663] provided 0 perfect and 1 imperfect interpolant sequences [2023-04-03 04:32:12,151 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1591803926] [2023-04-03 04:32:12,152 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-03 04:32:12,152 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-03 04:32:12,152 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-03 04:32:12,155 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 04:32:12,156 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 04:32:13,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-03 04:32:13,486 INFO L262 TraceCheckSpWp]: Trace formula consists of 5142 conjuncts, 4 conjunts are in the unsatisfiable core [2023-04-03 04:32:13,507 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-04-03 04:32:13,616 INFO L134 CoverageAnalysis]: Checked inductivity of 203 backedges. 44 proven. 0 refuted. 0 times theorem prover too weak. 159 trivial. 0 not checked. [2023-04-03 04:32:13,630 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-04-03 04:32:13,631 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1591803926] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-03 04:32:13,631 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-04-03 04:32:13,631 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [4] total 7 [2023-04-03 04:32:13,631 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1508677297] [2023-04-03 04:32:13,631 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-03 04:32:13,632 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-04-03 04:32:13,632 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-03 04:32:13,632 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-04-03 04:32:13,633 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2023-04-03 04:32:13,633 INFO L87 Difference]: Start difference. First operand 1978 states and 2595 transitions. Second operand has 5 states, 5 states have (on average 28.2) internal successors, (141), 4 states have internal predecessors, (141), 2 states have call successors, (53), 2 states have call predecessors, (53), 3 states have return successors, (46), 3 states have call predecessors, (46), 2 states have call successors, (46) [2023-04-03 04:32:15,662 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-04-03 04:32:17,669 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-04-03 04:32:19,680 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-04-03 04:32:21,688 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-04-03 04:32:22,346 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-03 04:32:22,347 INFO L93 Difference]: Finished difference Result 3589 states and 4700 transitions. [2023-04-03 04:32:22,347 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-04-03 04:32:22,347 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 28.2) internal successors, (141), 4 states have internal predecessors, (141), 2 states have call successors, (53), 2 states have call predecessors, (53), 3 states have return successors, (46), 3 states have call predecessors, (46), 2 states have call successors, (46) Word has length 304 [2023-04-03 04:32:22,348 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-03 04:32:22,358 INFO L225 Difference]: With dead ends: 3589 [2023-04-03 04:32:22,358 INFO L226 Difference]: Without dead ends: 1994 [2023-04-03 04:32:22,363 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 307 GetRequests, 302 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2023-04-03 04:32:22,364 INFO L413 NwaCegarLoop]: 935 mSDtfsCounter, 3 mSDsluCounter, 2790 mSDsCounter, 0 mSdLazyCounter, 621 mSolverCounterSat, 0 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 3725 SdHoareTripleChecker+Invalid, 625 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 621 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.6s IncrementalHoareTripleChecker+Time [2023-04-03 04:32:22,364 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 3725 Invalid, 625 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 621 Invalid, 4 Unknown, 0 Unchecked, 8.6s Time] [2023-04-03 04:32:22,367 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1994 states. [2023-04-03 04:32:22,474 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1994 to 1990. [2023-04-03 04:32:22,490 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1990 states, 1248 states have (on average 1.3645833333333333) internal successors, (1703), 1271 states have internal predecessors, (1703), 452 states have call successors, (452), 292 states have call predecessors, (452), 289 states have return successors, (453), 440 states have call predecessors, (453), 447 states have call successors, (453) [2023-04-03 04:32:22,498 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1990 states to 1990 states and 2608 transitions. [2023-04-03 04:32:22,499 INFO L78 Accepts]: Start accepts. Automaton has 1990 states and 2608 transitions. Word has length 304 [2023-04-03 04:32:22,500 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-03 04:32:22,500 INFO L495 AbstractCegarLoop]: Abstraction has 1990 states and 2608 transitions. [2023-04-03 04:32:22,501 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 28.2) internal successors, (141), 4 states have internal predecessors, (141), 2 states have call successors, (53), 2 states have call predecessors, (53), 3 states have return successors, (46), 3 states have call predecessors, (46), 2 states have call successors, (46) [2023-04-03 04:32:22,501 INFO L276 IsEmpty]: Start isEmpty. Operand 1990 states and 2608 transitions. [2023-04-03 04:32:22,510 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 323 [2023-04-03 04:32:22,510 INFO L187 NwaCegarLoop]: Found error trace [2023-04-03 04:32:22,510 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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] [2023-04-03 04:32:22,538 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 04:32:22,733 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-03 04:32:22,733 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-03 04:32:22,733 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-03 04:32:22,734 INFO L85 PathProgramCache]: Analyzing trace with hash 711705984, now seen corresponding path program 1 times [2023-04-03 04:32:22,734 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-03 04:32:22,734 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1321197012] [2023-04-03 04:32:22,734 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-03 04:32:22,734 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-03 04:32:22,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-03 04:32:23,442 INFO L134 CoverageAnalysis]: Checked inductivity of 205 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 204 trivial. 0 not checked. [2023-04-03 04:32:23,442 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-03 04:32:23,443 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1321197012] [2023-04-03 04:32:23,443 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1321197012] provided 0 perfect and 1 imperfect interpolant sequences [2023-04-03 04:32:23,443 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2046507925] [2023-04-03 04:32:23,443 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-03 04:32:23,443 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-03 04:32:23,443 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-03 04:32:23,445 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 04:32:23,457 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 04:32:24,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-03 04:32:24,823 INFO L262 TraceCheckSpWp]: Trace formula consists of 5226 conjuncts, 4 conjunts are in the unsatisfiable core [2023-04-03 04:32:24,835 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-04-03 04:32:24,894 INFO L134 CoverageAnalysis]: Checked inductivity of 205 backedges. 50 proven. 0 refuted. 0 times theorem prover too weak. 155 trivial. 0 not checked. [2023-04-03 04:32:24,894 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-04-03 04:32:24,894 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2046507925] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-03 04:32:24,894 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-04-03 04:32:24,894 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [4] total 7 [2023-04-03 04:32:24,895 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1260264402] [2023-04-03 04:32:24,895 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-03 04:32:24,895 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-04-03 04:32:24,895 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-03 04:32:24,896 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-04-03 04:32:24,896 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2023-04-03 04:32:24,896 INFO L87 Difference]: Start difference. First operand 1990 states and 2608 transitions. Second operand has 5 states, 5 states have (on average 30.2) internal successors, (151), 4 states have internal predecessors, (151), 2 states have call successors, (57), 2 states have call predecessors, (57), 3 states have return successors, (50), 3 states have call predecessors, (50), 2 states have call successors, (50) [2023-04-03 04:32:26,929 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-04-03 04:32:28,936 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-04-03 04:32:30,943 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-04-03 04:32:32,951 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-04-03 04:32:33,501 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-03 04:32:33,501 INFO L93 Difference]: Finished difference Result 3615 states and 4730 transitions. [2023-04-03 04:32:33,501 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-04-03 04:32:33,502 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 30.2) internal successors, (151), 4 states have internal predecessors, (151), 2 states have call successors, (57), 2 states have call predecessors, (57), 3 states have return successors, (50), 3 states have call predecessors, (50), 2 states have call successors, (50) Word has length 322 [2023-04-03 04:32:33,502 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-03 04:32:33,512 INFO L225 Difference]: With dead ends: 3615 [2023-04-03 04:32:33,512 INFO L226 Difference]: Without dead ends: 2008 [2023-04-03 04:32:33,519 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 325 GetRequests, 320 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2023-04-03 04:32:33,520 INFO L413 NwaCegarLoop]: 938 mSDtfsCounter, 3 mSDsluCounter, 2798 mSDsCounter, 0 mSdLazyCounter, 620 mSolverCounterSat, 0 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 3736 SdHoareTripleChecker+Invalid, 624 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 620 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.5s IncrementalHoareTripleChecker+Time [2023-04-03 04:32:33,521 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 3736 Invalid, 624 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 620 Invalid, 4 Unknown, 0 Unchecked, 8.5s Time] [2023-04-03 04:32:33,523 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2008 states. [2023-04-03 04:32:33,621 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2008 to 1999. [2023-04-03 04:32:33,624 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1999 states, 1254 states have (on average 1.3628389154704945) internal successors, (1709), 1278 states have internal predecessors, (1709), 453 states have call successors, (453), 292 states have call predecessors, (453), 291 states have return successors, (456), 443 states have call predecessors, (456), 448 states have call successors, (456) [2023-04-03 04:32:33,631 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1999 states to 1999 states and 2618 transitions. [2023-04-03 04:32:33,632 INFO L78 Accepts]: Start accepts. Automaton has 1999 states and 2618 transitions. Word has length 322 [2023-04-03 04:32:33,633 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-03 04:32:33,633 INFO L495 AbstractCegarLoop]: Abstraction has 1999 states and 2618 transitions. [2023-04-03 04:32:33,633 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 30.2) internal successors, (151), 4 states have internal predecessors, (151), 2 states have call successors, (57), 2 states have call predecessors, (57), 3 states have return successors, (50), 3 states have call predecessors, (50), 2 states have call successors, (50) [2023-04-03 04:32:33,633 INFO L276 IsEmpty]: Start isEmpty. Operand 1999 states and 2618 transitions. [2023-04-03 04:32:33,642 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 340 [2023-04-03 04:32:33,642 INFO L187 NwaCegarLoop]: Found error trace [2023-04-03 04:32:33,643 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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] [2023-04-03 04:32:33,664 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 04:32:33,861 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2023-04-03 04:32:33,861 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-03 04:32:33,862 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-03 04:32:33,862 INFO L85 PathProgramCache]: Analyzing trace with hash -553997892, now seen corresponding path program 1 times [2023-04-03 04:32:33,862 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-03 04:32:33,862 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1836645302] [2023-04-03 04:32:33,862 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-03 04:32:33,862 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-03 04:32:34,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-03 04:32:34,504 INFO L134 CoverageAnalysis]: Checked inductivity of 259 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 258 trivial. 0 not checked. [2023-04-03 04:32:34,504 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-03 04:32:34,504 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1836645302] [2023-04-03 04:32:34,504 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1836645302] provided 0 perfect and 1 imperfect interpolant sequences [2023-04-03 04:32:34,505 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [525066436] [2023-04-03 04:32:34,505 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-03 04:32:34,505 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-03 04:32:34,505 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-03 04:32:34,509 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 04:32:34,519 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 04:32:35,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-03 04:32:35,788 INFO L262 TraceCheckSpWp]: Trace formula consists of 5365 conjuncts, 4 conjunts are in the unsatisfiable core [2023-04-03 04:32:35,799 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-04-03 04:32:35,838 INFO L134 CoverageAnalysis]: Checked inductivity of 259 backedges. 48 proven. 0 refuted. 0 times theorem prover too weak. 211 trivial. 0 not checked. [2023-04-03 04:32:35,839 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-04-03 04:32:35,839 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [525066436] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-03 04:32:35,839 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-04-03 04:32:35,839 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [4] total 7 [2023-04-03 04:32:35,839 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [970113207] [2023-04-03 04:32:35,839 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-03 04:32:35,840 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-04-03 04:32:35,840 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-03 04:32:35,841 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-04-03 04:32:35,841 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2023-04-03 04:32:35,841 INFO L87 Difference]: Start difference. First operand 1999 states and 2618 transitions. Second operand has 5 states, 5 states have (on average 29.6) internal successors, (148), 4 states have internal predecessors, (148), 2 states have call successors, (56), 2 states have call predecessors, (56), 3 states have return successors, (49), 3 states have call predecessors, (49), 2 states have call successors, (49) [2023-04-03 04:32:37,874 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-04-03 04:32:39,879 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-04-03 04:32:41,887 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-04-03 04:32:43,897 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-04-03 04:32:44,499 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-03 04:32:44,499 INFO L93 Difference]: Finished difference Result 3635 states and 4754 transitions. [2023-04-03 04:32:44,500 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-04-03 04:32:44,500 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 29.6) internal successors, (148), 4 states have internal predecessors, (148), 2 states have call successors, (56), 2 states have call predecessors, (56), 3 states have return successors, (49), 3 states have call predecessors, (49), 2 states have call successors, (49) Word has length 339 [2023-04-03 04:32:44,501 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-03 04:32:44,510 INFO L225 Difference]: With dead ends: 3635 [2023-04-03 04:32:44,510 INFO L226 Difference]: Without dead ends: 2019 [2023-04-03 04:32:44,516 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 342 GetRequests, 337 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2023-04-03 04:32:44,517 INFO L413 NwaCegarLoop]: 946 mSDtfsCounter, 3 mSDsluCounter, 2814 mSDsCounter, 0 mSdLazyCounter, 622 mSolverCounterSat, 0 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 3760 SdHoareTripleChecker+Invalid, 626 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 622 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.5s IncrementalHoareTripleChecker+Time [2023-04-03 04:32:44,517 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 3760 Invalid, 626 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 622 Invalid, 4 Unknown, 0 Unchecked, 8.5s Time] [2023-04-03 04:32:44,520 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2019 states. [2023-04-03 04:32:44,654 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2019 to 2008. [2023-04-03 04:32:44,657 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2008 states, 1260 states have (on average 1.3611111111111112) internal successors, (1715), 1285 states have internal predecessors, (1715), 454 states have call successors, (454), 292 states have call predecessors, (454), 293 states have return successors, (459), 446 states have call predecessors, (459), 449 states have call successors, (459) [2023-04-03 04:32:44,663 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2008 states to 2008 states and 2628 transitions. [2023-04-03 04:32:44,664 INFO L78 Accepts]: Start accepts. Automaton has 2008 states and 2628 transitions. Word has length 339 [2023-04-03 04:32:44,665 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-03 04:32:44,665 INFO L495 AbstractCegarLoop]: Abstraction has 2008 states and 2628 transitions. [2023-04-03 04:32:44,665 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 29.6) internal successors, (148), 4 states have internal predecessors, (148), 2 states have call successors, (56), 2 states have call predecessors, (56), 3 states have return successors, (49), 3 states have call predecessors, (49), 2 states have call successors, (49) [2023-04-03 04:32:44,665 INFO L276 IsEmpty]: Start isEmpty. Operand 2008 states and 2628 transitions. [2023-04-03 04:32:44,674 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 346 [2023-04-03 04:32:44,674 INFO L187 NwaCegarLoop]: Found error trace [2023-04-03 04:32:44,675 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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] [2023-04-03 04:32:44,697 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 04:32:44,894 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-03 04:32:44,894 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-03 04:32:44,895 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-03 04:32:44,895 INFO L85 PathProgramCache]: Analyzing trace with hash 1116716245, now seen corresponding path program 1 times [2023-04-03 04:32:44,895 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-03 04:32:44,895 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [29096017] [2023-04-03 04:32:44,895 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-03 04:32:44,896 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-03 04:32:45,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-03 04:32:45,537 INFO L134 CoverageAnalysis]: Checked inductivity of 259 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 258 trivial. 0 not checked. [2023-04-03 04:32:45,538 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-03 04:32:45,538 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [29096017] [2023-04-03 04:32:45,538 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [29096017] provided 0 perfect and 1 imperfect interpolant sequences [2023-04-03 04:32:45,538 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [810307810] [2023-04-03 04:32:45,538 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-03 04:32:45,538 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-03 04:32:45,538 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-03 04:32:45,539 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 04:32:45,564 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 04:32:46,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-03 04:32:46,843 INFO L262 TraceCheckSpWp]: Trace formula consists of 5454 conjuncts, 3 conjunts are in the unsatisfiable core [2023-04-03 04:32:46,852 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-04-03 04:32:46,885 INFO L134 CoverageAnalysis]: Checked inductivity of 259 backedges. 48 proven. 1 refuted. 0 times theorem prover too weak. 210 trivial. 0 not checked. [2023-04-03 04:32:46,885 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-04-03 04:32:47,217 INFO L134 CoverageAnalysis]: Checked inductivity of 259 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 258 trivial. 0 not checked. [2023-04-03 04:32:47,217 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [810307810] provided 0 perfect and 2 imperfect interpolant sequences [2023-04-03 04:32:47,217 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1768106380] [2023-04-03 04:32:47,242 INFO L159 IcfgInterpreter]: Started Sifa with 243 locations of interest [2023-04-03 04:32:47,242 INFO L166 IcfgInterpreter]: Building call graph [2023-04-03 04:32:47,246 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2023-04-03 04:32:47,250 INFO L176 IcfgInterpreter]: Starting interpretation [2023-04-03 04:32:47,250 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2023-04-03 04:33:07,492 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.init with input of size 400 for LOIs [2023-04-03 04:33:15,345 INFO L197 IcfgInterpreter]: Interpreting procedure main with input of size 377 for LOIs