/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/linux-3.8-rc1-32_7a-drivers--input--misc--uinput.ko-ldv_main0.cil.out.i -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-f954360 [2023-04-01 07:17:37,078 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-04-01 07:17:37,080 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-04-01 07:17:37,109 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-04-01 07:17:37,110 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-04-01 07:17:37,111 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-04-01 07:17:37,111 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-04-01 07:17:37,112 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-04-01 07:17:37,113 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-04-01 07:17:37,114 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-04-01 07:17:37,114 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-04-01 07:17:37,115 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-04-01 07:17:37,115 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-04-01 07:17:37,116 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-04-01 07:17:37,126 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-04-01 07:17:37,127 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-04-01 07:17:37,127 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-04-01 07:17:37,128 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-04-01 07:17:37,129 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-04-01 07:17:37,130 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-04-01 07:17:37,131 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-04-01 07:17:37,138 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-04-01 07:17:37,138 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-04-01 07:17:37,139 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-04-01 07:17:37,141 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-04-01 07:17:37,141 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-04-01 07:17:37,141 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-04-01 07:17:37,142 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-04-01 07:17:37,142 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-04-01 07:17:37,143 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-04-01 07:17:37,143 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-04-01 07:17:37,143 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-04-01 07:17:37,144 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-04-01 07:17:37,144 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-04-01 07:17:37,145 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-04-01 07:17:37,145 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-04-01 07:17:37,145 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-04-01 07:17:37,145 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-04-01 07:17:37,146 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-04-01 07:17:37,146 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-04-01 07:17:37,147 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-04-01 07:17:37,152 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/taipan/svcomp-Reach-32bit-Taipan_Default.epf [2023-04-01 07:17:37,186 INFO L113 SettingsManager]: Loading preferences was successful [2023-04-01 07:17:37,186 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-04-01 07:17:37,187 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-04-01 07:17:37,187 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-04-01 07:17:37,188 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-04-01 07:17:37,188 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-04-01 07:17:37,188 INFO L138 SettingsManager]: * User list type=DISABLED [2023-04-01 07:17:37,188 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-04-01 07:17:37,188 INFO L138 SettingsManager]: * Explicit value domain=true [2023-04-01 07:17:37,188 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-04-01 07:17:37,189 INFO L138 SettingsManager]: * Octagon Domain=false [2023-04-01 07:17:37,189 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2023-04-01 07:17:37,190 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-04-01 07:17:37,190 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-04-01 07:17:37,190 INFO L138 SettingsManager]: * Interval Domain=false [2023-04-01 07:17:37,190 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-04-01 07:17:37,190 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-04-01 07:17:37,190 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2023-04-01 07:17:37,191 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-04-01 07:17:37,191 INFO L138 SettingsManager]: * sizeof long=4 [2023-04-01 07:17:37,191 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-04-01 07:17:37,191 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-04-01 07:17:37,191 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-04-01 07:17:37,191 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-04-01 07:17:37,192 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-04-01 07:17:37,192 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-04-01 07:17:37,192 INFO L138 SettingsManager]: * sizeof long double=12 [2023-04-01 07:17:37,192 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-04-01 07:17:37,192 INFO L138 SettingsManager]: * Use constant arrays=true [2023-04-01 07:17:37,192 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-04-01 07:17:37,192 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-04-01 07:17:37,193 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-04-01 07:17:37,193 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-04-01 07:17:37,193 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-04-01 07:17:37,193 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2023-04-01 07:17:37,193 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-04-01 07:17:37,193 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-04-01 07:17:37,193 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-04-01 07:17:37,193 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-04-01 07:17:37,194 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-04-01 07:17:37,194 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-04-01 07:17:37,194 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Abstract Domain -> OctagonDomain [2023-04-01 07:17:37,387 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-04-01 07:17:37,405 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-04-01 07:17:37,407 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-04-01 07:17:37,408 INFO L271 PluginConnector]: Initializing CDTParser... [2023-04-01 07:17:37,408 INFO L275 PluginConnector]: CDTParser initialized [2023-04-01 07:17:37,409 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-consumption/linux-3.8-rc1-32_7a-drivers--input--misc--uinput.ko-ldv_main0.cil.out.i [2023-04-01 07:17:38,492 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-04-01 07:17:38,775 INFO L351 CDTParser]: Found 1 translation units. [2023-04-01 07:17:38,775 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-consumption/linux-3.8-rc1-32_7a-drivers--input--misc--uinput.ko-ldv_main0.cil.out.i [2023-04-01 07:17:38,791 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9743376a5/d5290963b8684bf8ad524375e00cfce4/FLAG5a0e4f739 [2023-04-01 07:17:39,055 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9743376a5/d5290963b8684bf8ad524375e00cfce4 [2023-04-01 07:17:39,057 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-04-01 07:17:39,058 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2023-04-01 07:17:39,059 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-04-01 07:17:39,059 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-04-01 07:17:39,068 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-04-01 07:17:39,068 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.04 07:17:39" (1/1) ... [2023-04-01 07:17:39,069 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4ca2d280 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 07:17:39, skipping insertion in model container [2023-04-01 07:17:39,069 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.04 07:17:39" (1/1) ... [2023-04-01 07:17:39,073 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-04-01 07:17:39,147 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-04-01 07:17:39,924 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-consumption/linux-3.8-rc1-32_7a-drivers--input--misc--uinput.ko-ldv_main0.cil.out.i[133672,133685] [2023-04-01 07:17:39,963 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-04-01 07:17:39,975 INFO L203 MainTranslator]: Completed pre-run [2023-04-01 07:17:40,122 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-consumption/linux-3.8-rc1-32_7a-drivers--input--misc--uinput.ko-ldv_main0.cil.out.i[133672,133685] [2023-04-01 07:17:40,134 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-04-01 07:17:40,163 WARN L667 CHandler]: The function __bad_percpu_size is called, but not defined or handled by StandardFunctionHandler. [2023-04-01 07:17:40,167 INFO L208 MainTranslator]: Completed translation [2023-04-01 07:17:40,168 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 07:17:40 WrapperNode [2023-04-01 07:17:40,168 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-04-01 07:17:40,169 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-04-01 07:17:40,169 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-04-01 07:17:40,169 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-04-01 07:17:40,177 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 07:17:40" (1/1) ... [2023-04-01 07:17:40,177 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 07:17:40" (1/1) ... [2023-04-01 07:17:40,234 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 07:17:40" (1/1) ... [2023-04-01 07:17:40,234 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 07:17:40" (1/1) ... [2023-04-01 07:17:40,330 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 07:17:40" (1/1) ... [2023-04-01 07:17:40,341 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 07:17:40" (1/1) ... [2023-04-01 07:17:40,367 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 07:17:40" (1/1) ... [2023-04-01 07:17:40,376 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 07:17:40" (1/1) ... [2023-04-01 07:17:40,397 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-04-01 07:17:40,397 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-04-01 07:17:40,397 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-04-01 07:17:40,398 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-04-01 07:17:40,398 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 07:17:40" (1/1) ... [2023-04-01 07:17:40,412 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-04-01 07:17:40,419 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-01 07:17:40,430 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-04-01 07:17:40,476 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-04-01 07:17:40,488 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2023-04-01 07:17:40,489 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-04-01 07:17:40,489 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~$Pointer$~TO~VOID [2023-04-01 07:17:40,490 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2023-04-01 07:17:40,490 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2023-04-01 07:17:40,490 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2023-04-01 07:17:40,490 INFO L138 BoogieDeclarations]: Found implementation of procedure variable_test_bit [2023-04-01 07:17:40,490 INFO L138 BoogieDeclarations]: Found implementation of procedure get_current [2023-04-01 07:17:40,490 INFO L138 BoogieDeclarations]: Found implementation of procedure PTR_ERR [2023-04-01 07:17:40,490 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2023-04-01 07:17:40,491 INFO L138 BoogieDeclarations]: Found implementation of procedure current_thread_info [2023-04-01 07:17:40,491 INFO L138 BoogieDeclarations]: Found implementation of procedure is_ia32_task [2023-04-01 07:17:40,491 INFO L138 BoogieDeclarations]: Found implementation of procedure test_ti_thread_flag [2023-04-01 07:17:40,491 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2023-04-01 07:17:40,491 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2023-04-01 07:17:40,492 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock_irq [2023-04-01 07:17:40,492 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2023-04-01 07:17:40,492 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irq [2023-04-01 07:17:40,492 INFO L138 BoogieDeclarations]: Found implementation of procedure init_completion [2023-04-01 07:17:40,492 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_from_user [2023-04-01 07:17:40,492 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_to_user [2023-04-01 07:17:40,492 INFO L138 BoogieDeclarations]: Found implementation of procedure poll_wait [2023-04-01 07:17:40,492 INFO L138 BoogieDeclarations]: Found implementation of procedure test_tsk_thread_flag [2023-04-01 07:17:40,492 INFO L138 BoogieDeclarations]: Found implementation of procedure signal_pending [2023-04-01 07:17:40,492 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-04-01 07:17:40,493 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2023-04-01 07:17:40,493 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2023-04-01 07:17:40,493 INFO L138 BoogieDeclarations]: Found implementation of procedure __kmalloc [2023-04-01 07:17:40,493 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2023-04-01 07:17:40,493 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2023-04-01 07:17:40,493 INFO L138 BoogieDeclarations]: Found implementation of procedure input_allocate_device [2023-04-01 07:17:40,493 INFO L138 BoogieDeclarations]: Found implementation of procedure input_get_drvdata [2023-04-01 07:17:40,493 INFO L138 BoogieDeclarations]: Found implementation of procedure input_set_drvdata [2023-04-01 07:17:40,493 INFO L138 BoogieDeclarations]: Found implementation of procedure input_set_events_per_packet [2023-04-01 07:17:40,493 INFO L138 BoogieDeclarations]: Found implementation of procedure input_abs_get_min [2023-04-01 07:17:40,494 INFO L138 BoogieDeclarations]: Found implementation of procedure input_abs_set_min [2023-04-01 07:17:40,494 INFO L138 BoogieDeclarations]: Found implementation of procedure input_abs_get_max [2023-04-01 07:17:40,494 INFO L138 BoogieDeclarations]: Found implementation of procedure input_abs_set_max [2023-04-01 07:17:40,494 INFO L138 BoogieDeclarations]: Found implementation of procedure input_abs_set_fuzz [2023-04-01 07:17:40,494 INFO L138 BoogieDeclarations]: Found implementation of procedure input_abs_get_flat [2023-04-01 07:17:40,494 INFO L138 BoogieDeclarations]: Found implementation of procedure input_abs_set_flat [2023-04-01 07:17:40,494 INFO L138 BoogieDeclarations]: Found implementation of procedure compat_ptr [2023-04-01 07:17:40,495 INFO L138 BoogieDeclarations]: Found implementation of procedure is_x32_task [2023-04-01 07:17:40,495 INFO L138 BoogieDeclarations]: Found implementation of procedure is_compat_task [2023-04-01 07:17:40,495 INFO L138 BoogieDeclarations]: Found implementation of procedure input_event_size [2023-04-01 07:17:40,495 INFO L138 BoogieDeclarations]: Found implementation of procedure uinput_dev_event [2023-04-01 07:17:40,495 INFO L138 BoogieDeclarations]: Found implementation of procedure uinput_request_alloc_id [2023-04-01 07:17:40,496 INFO L138 BoogieDeclarations]: Found implementation of procedure uinput_request_find [2023-04-01 07:17:40,496 INFO L138 BoogieDeclarations]: Found implementation of procedure uinput_request_reserve_slot [2023-04-01 07:17:40,496 INFO L138 BoogieDeclarations]: Found implementation of procedure uinput_request_done [2023-04-01 07:17:40,496 INFO L138 BoogieDeclarations]: Found implementation of procedure uinput_request_send [2023-04-01 07:17:40,496 INFO L138 BoogieDeclarations]: Found implementation of procedure uinput_request_submit [2023-04-01 07:17:40,496 INFO L138 BoogieDeclarations]: Found implementation of procedure uinput_flush_requests [2023-04-01 07:17:40,497 INFO L138 BoogieDeclarations]: Found implementation of procedure uinput_dev_set_gain [2023-04-01 07:17:40,497 INFO L138 BoogieDeclarations]: Found implementation of procedure uinput_dev_set_autocenter [2023-04-01 07:17:40,497 INFO L138 BoogieDeclarations]: Found implementation of procedure uinput_dev_playback [2023-04-01 07:17:40,497 INFO L138 BoogieDeclarations]: Found implementation of procedure uinput_dev_upload_effect [2023-04-01 07:17:40,497 INFO L138 BoogieDeclarations]: Found implementation of procedure uinput_dev_erase_effect [2023-04-01 07:17:40,498 INFO L138 BoogieDeclarations]: Found implementation of procedure uinput_destroy_device [2023-04-01 07:17:40,498 INFO L138 BoogieDeclarations]: Found implementation of procedure uinput_create_device [2023-04-01 07:17:40,498 INFO L138 BoogieDeclarations]: Found implementation of procedure uinput_open [2023-04-01 07:17:40,498 INFO L138 BoogieDeclarations]: Found implementation of procedure uinput_validate_absbits [2023-04-01 07:17:40,498 INFO L138 BoogieDeclarations]: Found implementation of procedure uinput_allocate_device [2023-04-01 07:17:40,498 INFO L138 BoogieDeclarations]: Found implementation of procedure uinput_setup_device [2023-04-01 07:17:40,498 INFO L138 BoogieDeclarations]: Found implementation of procedure uinput_inject_event [2023-04-01 07:17:40,498 INFO L138 BoogieDeclarations]: Found implementation of procedure uinput_write [2023-04-01 07:17:40,498 INFO L138 BoogieDeclarations]: Found implementation of procedure uinput_fetch_next_event [2023-04-01 07:17:40,498 INFO L138 BoogieDeclarations]: Found implementation of procedure uinput_events_to_user [2023-04-01 07:17:40,499 INFO L138 BoogieDeclarations]: Found implementation of procedure uinput_read [2023-04-01 07:17:40,499 INFO L138 BoogieDeclarations]: Found implementation of procedure uinput_poll [2023-04-01 07:17:40,499 INFO L138 BoogieDeclarations]: Found implementation of procedure uinput_release [2023-04-01 07:17:40,499 INFO L138 BoogieDeclarations]: Found implementation of procedure uinput_ff_upload_to_user [2023-04-01 07:17:40,499 INFO L138 BoogieDeclarations]: Found implementation of procedure uinput_ff_upload_from_user [2023-04-01 07:17:40,499 INFO L138 BoogieDeclarations]: Found implementation of procedure uinput_ioctl_handler [2023-04-01 07:17:40,499 INFO L138 BoogieDeclarations]: Found implementation of procedure uinput_ioctl [2023-04-01 07:17:40,499 INFO L138 BoogieDeclarations]: Found implementation of procedure uinput_compat_ioctl [2023-04-01 07:17:40,499 INFO L138 BoogieDeclarations]: Found implementation of procedure uinput_init [2023-04-01 07:17:40,499 INFO L138 BoogieDeclarations]: Found implementation of procedure uinput_exit [2023-04-01 07:17:40,499 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2023-04-01 07:17:40,500 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_1 [2023-04-01 07:17:40,500 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_2 [2023-04-01 07:17:40,500 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_3 [2023-04-01 07:17:40,500 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_trylock_4 [2023-04-01 07:17:40,500 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_5 [2023-04-01 07:17:40,500 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_interruptible_6 [2023-04-01 07:17:40,501 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_7 [2023-04-01 07:17:40,501 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_interruptible_8 [2023-04-01 07:17:40,501 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_9 [2023-04-01 07:17:40,501 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_interruptible_10 [2023-04-01 07:17:40,501 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_11 [2023-04-01 07:17:40,501 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_interruptible_12 [2023-04-01 07:17:40,501 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_13 [2023-04-01 07:17:40,501 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2023-04-01 07:17:40,501 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2023-04-01 07:17:40,501 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_interruptible_lock [2023-04-01 07:17:40,502 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_killable_lock [2023-04-01 07:17:40,502 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_lock [2023-04-01 07:17:40,502 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_trylock_lock [2023-04-01 07:17:40,502 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_dec_and_mutex_lock_lock [2023-04-01 07:17:40,502 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_is_locked_lock [2023-04-01 07:17:40,502 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_lock [2023-04-01 07:17:40,502 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_interruptible_mutex_of_device [2023-04-01 07:17:40,502 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_killable_mutex_of_device [2023-04-01 07:17:40,502 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_mutex_of_device [2023-04-01 07:17:40,502 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_trylock_mutex_of_device [2023-04-01 07:17:40,502 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_dec_and_mutex_lock_mutex_of_device [2023-04-01 07:17:40,503 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_is_locked_mutex_of_device [2023-04-01 07:17:40,503 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_mutex_of_device [2023-04-01 07:17:40,503 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_interruptible_mutex_of_uinput_device [2023-04-01 07:17:40,503 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_killable_mutex_of_uinput_device [2023-04-01 07:17:40,503 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_mutex_of_uinput_device [2023-04-01 07:17:40,503 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_trylock_mutex_of_uinput_device [2023-04-01 07:17:40,503 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_dec_and_mutex_lock_mutex_of_uinput_device [2023-04-01 07:17:40,503 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_is_locked_mutex_of_uinput_device [2023-04-01 07:17:40,503 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_mutex_of_uinput_device [2023-04-01 07:17:40,504 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize [2023-04-01 07:17:40,504 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2023-04-01 07:17:40,504 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_waitqueue_head [2023-04-01 07:17:40,504 INFO L138 BoogieDeclarations]: Found implementation of procedure __mutex_init [2023-04-01 07:17:40,504 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2023-04-01 07:17:40,505 INFO L138 BoogieDeclarations]: Found implementation of procedure __wake_up [2023-04-01 07:17:40,506 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_from_user [2023-04-01 07:17:40,506 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_to_user [2023-04-01 07:17:40,511 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock [2023-04-01 07:17:40,511 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock_irq [2023-04-01 07:17:40,511 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_unlock [2023-04-01 07:17:40,511 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_unlock_irq [2023-04-01 07:17:40,511 INFO L138 BoogieDeclarations]: Found implementation of procedure complete [2023-04-01 07:17:40,511 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_get_drvdata [2023-04-01 07:17:40,511 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_set_drvdata [2023-04-01 07:17:40,512 INFO L138 BoogieDeclarations]: Found implementation of procedure do_gettimeofday [2023-04-01 07:17:40,512 INFO L138 BoogieDeclarations]: Found implementation of procedure finish_wait [2023-04-01 07:17:40,512 INFO L138 BoogieDeclarations]: Found implementation of procedure input_alloc_absinfo [2023-04-01 07:17:40,512 INFO L138 BoogieDeclarations]: Found implementation of procedure input_event [2023-04-01 07:17:40,512 INFO L138 BoogieDeclarations]: Found implementation of procedure input_event_from_user [2023-04-01 07:17:40,512 INFO L138 BoogieDeclarations]: Found implementation of procedure input_event_to_user [2023-04-01 07:17:40,513 INFO L138 BoogieDeclarations]: Found implementation of procedure input_ff_create [2023-04-01 07:17:40,513 INFO L138 BoogieDeclarations]: Found implementation of procedure input_ff_destroy [2023-04-01 07:17:40,513 INFO L138 BoogieDeclarations]: Found implementation of procedure input_free_device [2023-04-01 07:17:40,513 INFO L138 BoogieDeclarations]: Found implementation of procedure input_mt_init_slots [2023-04-01 07:17:40,513 INFO L138 BoogieDeclarations]: Found implementation of procedure input_register_device [2023-04-01 07:17:40,513 INFO L138 BoogieDeclarations]: Found implementation of procedure input_unregister_device [2023-04-01 07:17:40,513 INFO L138 BoogieDeclarations]: Found implementation of procedure kstrndup [2023-04-01 07:17:40,513 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_return_value [2023-04-01 07:17:40,513 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_handler_precall [2023-04-01 07:17:40,514 INFO L138 BoogieDeclarations]: Found implementation of procedure memdup_user [2023-04-01 07:17:40,514 INFO L138 BoogieDeclarations]: Found implementation of procedure might_fault [2023-04-01 07:17:40,514 INFO L138 BoogieDeclarations]: Found implementation of procedure misc_deregister [2023-04-01 07:17:40,514 INFO L138 BoogieDeclarations]: Found implementation of procedure misc_register [2023-04-01 07:17:40,514 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock [2023-04-01 07:17:40,514 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_interruptible [2023-04-01 07:17:40,514 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_trylock [2023-04-01 07:17:40,514 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2023-04-01 07:17:40,514 INFO L138 BoogieDeclarations]: Found implementation of procedure nonseekable_open [2023-04-01 07:17:40,514 INFO L138 BoogieDeclarations]: Found implementation of procedure prepare_to_wait [2023-04-01 07:17:40,514 INFO L138 BoogieDeclarations]: Found implementation of procedure printk [2023-04-01 07:17:40,514 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule [2023-04-01 07:17:40,514 INFO L138 BoogieDeclarations]: Found implementation of procedure strndup_user [2023-04-01 07:17:40,514 INFO L138 BoogieDeclarations]: Found implementation of procedure wait_for_completion [2023-04-01 07:17:40,514 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_fmt [2023-04-01 07:17:40,514 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2023-04-01 07:17:40,515 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2023-04-01 07:17:40,515 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2023-04-01 07:17:40,515 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2023-04-01 07:17:40,515 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2023-04-01 07:17:40,515 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_perror_fail [2023-04-01 07:17:40,515 INFO L130 BoogieDeclarations]: Found specification of procedure __assert [2023-04-01 07:17:40,515 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2023-04-01 07:17:40,515 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-04-01 07:17:40,516 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2023-04-01 07:17:40,516 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2023-04-01 07:17:40,516 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2023-04-01 07:17:40,516 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-04-01 07:17:40,516 INFO L130 BoogieDeclarations]: Found specification of procedure variable_test_bit [2023-04-01 07:17:40,516 INFO L130 BoogieDeclarations]: Found specification of procedure printk [2023-04-01 07:17:40,516 INFO L130 BoogieDeclarations]: Found specification of procedure might_fault [2023-04-01 07:17:40,516 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2023-04-01 07:17:40,516 INFO L130 BoogieDeclarations]: Found specification of procedure get_current [2023-04-01 07:17:40,516 INFO L130 BoogieDeclarations]: Found specification of procedure strndup_user [2023-04-01 07:17:40,516 INFO L130 BoogieDeclarations]: Found specification of procedure memdup_user [2023-04-01 07:17:40,516 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy [2023-04-01 07:17:40,517 INFO L130 BoogieDeclarations]: Found specification of procedure memset [2023-04-01 07:17:40,517 INFO L130 BoogieDeclarations]: Found specification of procedure kstrndup [2023-04-01 07:17:40,517 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_fmt [2023-04-01 07:17:40,517 INFO L130 BoogieDeclarations]: Found specification of procedure PTR_ERR [2023-04-01 07:17:40,517 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2023-04-01 07:17:40,517 INFO L130 BoogieDeclarations]: Found specification of procedure __mutex_init [2023-04-01 07:17:40,518 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_trylock [2023-04-01 07:17:40,518 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_trylock_4 [2023-04-01 07:17:40,518 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2023-04-01 07:17:40,518 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_2 [2023-04-01 07:17:40,518 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_5 [2023-04-01 07:17:40,518 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_7 [2023-04-01 07:17:40,519 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_9 [2023-04-01 07:17:40,519 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_11 [2023-04-01 07:17:40,519 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_13 [2023-04-01 07:17:40,519 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_interruptible [2023-04-01 07:17:40,519 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_interruptible_6 [2023-04-01 07:17:40,519 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_interruptible_8 [2023-04-01 07:17:40,519 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_interruptible_10 [2023-04-01 07:17:40,519 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_interruptible_12 [2023-04-01 07:17:40,519 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock [2023-04-01 07:17:40,519 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_1 [2023-04-01 07:17:40,519 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_3 [2023-04-01 07:17:40,519 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_lock [2023-04-01 07:17:40,519 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_lock [2023-04-01 07:17:40,519 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_mutex_of_device [2023-04-01 07:17:40,519 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_trylock_mutex_of_device [2023-04-01 07:17:40,519 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_mutex_of_device [2023-04-01 07:17:40,520 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_interruptible_mutex_of_uinput_device [2023-04-01 07:17:40,520 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_mutex_of_uinput_device [2023-04-01 07:17:40,520 INFO L130 BoogieDeclarations]: Found specification of procedure current_thread_info [2023-04-01 07:17:40,520 INFO L130 BoogieDeclarations]: Found specification of procedure is_ia32_task [2023-04-01 07:17:40,520 INFO L130 BoogieDeclarations]: Found specification of procedure test_ti_thread_flag [2023-04-01 07:17:40,520 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2023-04-01 07:17:40,520 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock [2023-04-01 07:17:40,520 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock_irq [2023-04-01 07:17:40,520 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_unlock [2023-04-01 07:17:40,520 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_unlock_irq [2023-04-01 07:17:40,520 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2023-04-01 07:17:40,520 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2023-04-01 07:17:40,520 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock_irq [2023-04-01 07:17:40,520 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2023-04-01 07:17:40,520 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irq [2023-04-01 07:17:40,520 INFO L130 BoogieDeclarations]: Found specification of procedure do_gettimeofday [2023-04-01 07:17:40,520 INFO L130 BoogieDeclarations]: Found specification of procedure __init_waitqueue_head [2023-04-01 07:17:40,521 INFO L130 BoogieDeclarations]: Found specification of procedure __wake_up [2023-04-01 07:17:40,521 INFO L130 BoogieDeclarations]: Found specification of procedure prepare_to_wait [2023-04-01 07:17:40,521 INFO L130 BoogieDeclarations]: Found specification of procedure finish_wait [2023-04-01 07:17:40,521 INFO L130 BoogieDeclarations]: Found specification of procedure autoremove_wake_function [2023-04-01 07:17:40,521 INFO L130 BoogieDeclarations]: Found specification of procedure init_completion [2023-04-01 07:17:40,521 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-04-01 07:17:40,521 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-04-01 07:17:40,521 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-04-01 07:17:40,521 INFO L130 BoogieDeclarations]: Found specification of procedure wait_for_completion [2023-04-01 07:17:40,521 INFO L130 BoogieDeclarations]: Found specification of procedure complete [2023-04-01 07:17:40,521 INFO L130 BoogieDeclarations]: Found specification of procedure no_llseek [2023-04-01 07:17:40,521 INFO L130 BoogieDeclarations]: Found specification of procedure nonseekable_open [2023-04-01 07:17:40,521 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_to_user [2023-04-01 07:17:40,521 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_from_user [2023-04-01 07:17:40,521 INFO L130 BoogieDeclarations]: Found specification of procedure copy_from_user [2023-04-01 07:17:40,521 INFO L130 BoogieDeclarations]: Found specification of procedure copy_to_user [2023-04-01 07:17:40,521 INFO L130 BoogieDeclarations]: Found specification of procedure poll_wait [2023-04-01 07:17:40,522 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~$Pointer$~TO~VOID [2023-04-01 07:17:40,522 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-04-01 07:17:40,522 INFO L130 BoogieDeclarations]: Found specification of procedure schedule [2023-04-01 07:17:40,522 INFO L130 BoogieDeclarations]: Found specification of procedure test_tsk_thread_flag [2023-04-01 07:17:40,522 INFO L130 BoogieDeclarations]: Found specification of procedure signal_pending [2023-04-01 07:17:40,525 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2023-04-01 07:17:40,525 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2023-04-01 07:17:40,525 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-04-01 07:17:40,526 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2023-04-01 07:17:40,526 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2023-04-01 07:17:40,526 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2023-04-01 07:17:40,526 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-04-01 07:17:40,526 INFO L130 BoogieDeclarations]: Found specification of procedure __kmalloc [2023-04-01 07:17:40,526 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2023-04-01 07:17:40,526 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2023-04-01 07:17:40,526 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2023-04-01 07:17:40,526 INFO L130 BoogieDeclarations]: Found specification of procedure misc_register [2023-04-01 07:17:40,526 INFO L130 BoogieDeclarations]: Found specification of procedure misc_deregister [2023-04-01 07:17:40,526 INFO L130 BoogieDeclarations]: Found specification of procedure dev_get_drvdata [2023-04-01 07:17:40,526 INFO L130 BoogieDeclarations]: Found specification of procedure dev_set_drvdata [2023-04-01 07:17:40,526 INFO L130 BoogieDeclarations]: Found specification of procedure input_allocate_device [2023-04-01 07:17:40,526 INFO L130 BoogieDeclarations]: Found specification of procedure input_free_device [2023-04-01 07:17:40,526 INFO L130 BoogieDeclarations]: Found specification of procedure input_get_drvdata [2023-04-01 07:17:40,527 INFO L130 BoogieDeclarations]: Found specification of procedure input_set_drvdata [2023-04-01 07:17:40,527 INFO L130 BoogieDeclarations]: Found specification of procedure input_register_device [2023-04-01 07:17:40,527 INFO L130 BoogieDeclarations]: Found specification of procedure input_unregister_device [2023-04-01 07:17:40,527 INFO L130 BoogieDeclarations]: Found specification of procedure input_event [2023-04-01 07:17:40,527 INFO L130 BoogieDeclarations]: Found specification of procedure input_set_events_per_packet [2023-04-01 07:17:40,527 INFO L130 BoogieDeclarations]: Found specification of procedure input_alloc_absinfo [2023-04-01 07:17:40,527 INFO L130 BoogieDeclarations]: Found specification of procedure input_abs_get_min [2023-04-01 07:17:40,527 INFO L130 BoogieDeclarations]: Found specification of procedure input_abs_set_min [2023-04-01 07:17:40,527 INFO L130 BoogieDeclarations]: Found specification of procedure input_abs_get_max [2023-04-01 07:17:40,527 INFO L130 BoogieDeclarations]: Found specification of procedure input_abs_set_max [2023-04-01 07:17:40,527 INFO L130 BoogieDeclarations]: Found specification of procedure input_abs_set_fuzz [2023-04-01 07:17:40,527 INFO L130 BoogieDeclarations]: Found specification of procedure input_abs_get_flat [2023-04-01 07:17:40,527 INFO L130 BoogieDeclarations]: Found specification of procedure input_abs_set_flat [2023-04-01 07:17:40,527 INFO L130 BoogieDeclarations]: Found specification of procedure input_ff_create [2023-04-01 07:17:40,528 INFO L130 BoogieDeclarations]: Found specification of procedure input_ff_destroy [2023-04-01 07:17:40,528 INFO L130 BoogieDeclarations]: Found specification of procedure input_mt_init_slots [2023-04-01 07:17:40,528 INFO L130 BoogieDeclarations]: Found specification of procedure compat_ptr [2023-04-01 07:17:40,528 INFO L130 BoogieDeclarations]: Found specification of procedure is_x32_task [2023-04-01 07:17:40,528 INFO L130 BoogieDeclarations]: Found specification of procedure is_compat_task [2023-04-01 07:17:40,528 INFO L130 BoogieDeclarations]: Found specification of procedure input_event_size [2023-04-01 07:17:40,528 INFO L130 BoogieDeclarations]: Found specification of procedure input_event_from_user [2023-04-01 07:17:40,528 INFO L130 BoogieDeclarations]: Found specification of procedure input_event_to_user [2023-04-01 07:17:40,528 INFO L130 BoogieDeclarations]: Found specification of procedure uinput_dev_event [2023-04-01 07:17:40,528 INFO L130 BoogieDeclarations]: Found specification of procedure uinput_request_alloc_id [2023-04-01 07:17:40,528 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-04-01 07:17:40,528 INFO L130 BoogieDeclarations]: Found specification of procedure uinput_request_find [2023-04-01 07:17:40,528 INFO L130 BoogieDeclarations]: Found specification of procedure uinput_request_reserve_slot [2023-04-01 07:17:40,528 INFO L130 BoogieDeclarations]: Found specification of procedure uinput_request_done [2023-04-01 07:17:40,528 INFO L130 BoogieDeclarations]: Found specification of procedure uinput_request_send [2023-04-01 07:17:40,528 INFO L130 BoogieDeclarations]: Found specification of procedure uinput_request_submit [2023-04-01 07:17:40,528 INFO L130 BoogieDeclarations]: Found specification of procedure uinput_flush_requests [2023-04-01 07:17:40,528 INFO L130 BoogieDeclarations]: Found specification of procedure uinput_dev_set_gain [2023-04-01 07:17:40,529 INFO L130 BoogieDeclarations]: Found specification of procedure uinput_dev_set_autocenter [2023-04-01 07:17:40,529 INFO L130 BoogieDeclarations]: Found specification of procedure uinput_dev_playback [2023-04-01 07:17:40,529 INFO L130 BoogieDeclarations]: Found specification of procedure uinput_dev_upload_effect [2023-04-01 07:17:40,529 INFO L130 BoogieDeclarations]: Found specification of procedure uinput_dev_erase_effect [2023-04-01 07:17:40,529 INFO L130 BoogieDeclarations]: Found specification of procedure uinput_destroy_device [2023-04-01 07:17:40,529 INFO L130 BoogieDeclarations]: Found specification of procedure uinput_create_device [2023-04-01 07:17:40,529 INFO L130 BoogieDeclarations]: Found specification of procedure uinput_open [2023-04-01 07:17:40,529 INFO L130 BoogieDeclarations]: Found specification of procedure uinput_validate_absbits [2023-04-01 07:17:40,529 INFO L130 BoogieDeclarations]: Found specification of procedure uinput_allocate_device [2023-04-01 07:17:40,529 INFO L130 BoogieDeclarations]: Found specification of procedure uinput_setup_device [2023-04-01 07:17:40,529 INFO L130 BoogieDeclarations]: Found specification of procedure uinput_inject_event [2023-04-01 07:17:40,529 INFO L130 BoogieDeclarations]: Found specification of procedure uinput_write [2023-04-01 07:17:40,529 INFO L130 BoogieDeclarations]: Found specification of procedure uinput_fetch_next_event [2023-04-01 07:17:40,529 INFO L130 BoogieDeclarations]: Found specification of procedure uinput_events_to_user [2023-04-01 07:17:40,529 INFO L130 BoogieDeclarations]: Found specification of procedure uinput_read [2023-04-01 07:17:40,529 INFO L130 BoogieDeclarations]: Found specification of procedure uinput_poll [2023-04-01 07:17:40,529 INFO L130 BoogieDeclarations]: Found specification of procedure uinput_release [2023-04-01 07:17:40,529 INFO L130 BoogieDeclarations]: Found specification of procedure uinput_ff_upload_to_user [2023-04-01 07:17:40,530 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2023-04-01 07:17:40,530 INFO L130 BoogieDeclarations]: Found specification of procedure uinput_ff_upload_from_user [2023-04-01 07:17:40,530 INFO L130 BoogieDeclarations]: Found specification of procedure uinput_ioctl_handler [2023-04-01 07:17:40,530 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2023-04-01 07:17:40,530 INFO L130 BoogieDeclarations]: Found specification of procedure uinput_ioctl [2023-04-01 07:17:40,530 INFO L130 BoogieDeclarations]: Found specification of procedure uinput_compat_ioctl [2023-04-01 07:17:40,530 INFO L130 BoogieDeclarations]: Found specification of procedure uinput_init [2023-04-01 07:17:40,530 INFO L130 BoogieDeclarations]: Found specification of procedure uinput_exit [2023-04-01 07:17:40,530 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2023-04-01 07:17:40,530 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_return_value [2023-04-01 07:17:40,530 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize [2023-04-01 07:17:40,530 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_handler_precall [2023-04-01 07:17:40,530 INFO L130 BoogieDeclarations]: Found specification of procedure main [2023-04-01 07:17:40,530 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2023-04-01 07:17:40,530 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_interruptible_lock [2023-04-01 07:17:40,530 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_killable_lock [2023-04-01 07:17:40,530 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_trylock_lock [2023-04-01 07:17:40,531 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_dec_and_mutex_lock_lock [2023-04-01 07:17:40,531 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_is_locked_lock [2023-04-01 07:17:40,531 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_interruptible_mutex_of_device [2023-04-01 07:17:40,531 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_killable_mutex_of_device [2023-04-01 07:17:40,531 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_dec_and_mutex_lock_mutex_of_device [2023-04-01 07:17:40,531 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_is_locked_mutex_of_device [2023-04-01 07:17:40,531 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_killable_mutex_of_uinput_device [2023-04-01 07:17:40,531 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_mutex_of_uinput_device [2023-04-01 07:17:40,531 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_trylock_mutex_of_uinput_device [2023-04-01 07:17:40,531 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_dec_and_mutex_lock_mutex_of_uinput_device [2023-04-01 07:17:40,531 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_is_locked_mutex_of_uinput_device [2023-04-01 07:17:40,531 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_ulong [2023-04-01 07:17:40,531 INFO L130 BoogieDeclarations]: Found specification of procedure free [2023-04-01 07:17:40,531 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2023-04-01 07:17:40,531 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-04-01 07:17:40,531 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2023-04-01 07:17:40,531 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-04-01 07:17:40,531 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2023-04-01 07:17:40,532 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2023-04-01 07:17:40,532 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2023-04-01 07:17:40,532 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2023-04-01 07:17:41,022 INFO L236 CfgBuilder]: Building ICFG [2023-04-01 07:17:41,028 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-04-01 07:17:48,153 INFO L277 CfgBuilder]: Performing block encoding [2023-04-01 07:17:48,535 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-04-01 07:17:48,535 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-04-01 07:17:48,539 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.04 07:17:48 BoogieIcfgContainer [2023-04-01 07:17:48,539 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-04-01 07:17:48,542 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-04-01 07:17:48,542 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-04-01 07:17:48,544 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-04-01 07:17:48,544 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 01.04 07:17:39" (1/3) ... [2023-04-01 07:17:48,545 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4727fdfa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.04 07:17:48, skipping insertion in model container [2023-04-01 07:17:48,545 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 07:17:40" (2/3) ... [2023-04-01 07:17:48,545 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4727fdfa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.04 07:17:48, skipping insertion in model container [2023-04-01 07:17:48,545 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.04 07:17:48" (3/3) ... [2023-04-01 07:17:48,546 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-3.8-rc1-32_7a-drivers--input--misc--uinput.ko-ldv_main0.cil.out.i [2023-04-01 07:17:48,560 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-04-01 07:17:48,560 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-04-01 07:17:48,624 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-04-01 07:17:48,629 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;@77e9aa34, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-04-01 07:17:48,629 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-04-01 07:17:48,636 INFO L276 IsEmpty]: Start isEmpty. Operand has 958 states, 549 states have (on average 1.2695810564663024) internal successors, (697), 568 states have internal predecessors, (697), 250 states have call successors, (250), 131 states have call predecessors, (250), 131 states have return successors, (250), 247 states have call predecessors, (250), 250 states have call successors, (250) [2023-04-01 07:17:48,641 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2023-04-01 07:17:48,642 INFO L187 NwaCegarLoop]: Found error trace [2023-04-01 07:17:48,642 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] [2023-04-01 07:17:48,643 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-01 07:17:48,647 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-01 07:17:48,647 INFO L85 PathProgramCache]: Analyzing trace with hash -35952384, now seen corresponding path program 1 times [2023-04-01 07:17:48,654 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-01 07:17:48,654 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [90629725] [2023-04-01 07:17:48,654 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-01 07:17:48,655 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-01 07:17:48,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 07:17:48,964 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-04-01 07:17:48,964 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-01 07:17:48,964 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [90629725] [2023-04-01 07:17:48,965 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [90629725] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-01 07:17:48,965 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-01 07:17:48,965 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-04-01 07:17:48,966 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [777067836] [2023-04-01 07:17:48,967 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-01 07:17:48,970 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-04-01 07:17:48,971 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-01 07:17:48,994 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-04-01 07:17:48,994 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-04-01 07:17:48,997 INFO L87 Difference]: Start difference. First operand has 958 states, 549 states have (on average 1.2695810564663024) internal successors, (697), 568 states have internal predecessors, (697), 250 states have call successors, (250), 131 states have call predecessors, (250), 131 states have return successors, (250), 247 states have call predecessors, (250), 250 states have call successors, (250) Second operand has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 3 states have call successors, (8), 3 states have call predecessors, (8), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-04-01 07:17:49,308 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-01 07:17:49,308 INFO L93 Difference]: Finished difference Result 1584 states and 2065 transitions. [2023-04-01 07:17:49,310 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-04-01 07:17:49,310 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 3 states have call successors, (8), 3 states have call predecessors, (8), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 24 [2023-04-01 07:17:49,311 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-01 07:17:49,322 INFO L225 Difference]: With dead ends: 1584 [2023-04-01 07:17:49,322 INFO L226 Difference]: Without dead ends: 794 [2023-04-01 07:17:49,328 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-04-01 07:17:49,330 INFO L413 NwaCegarLoop]: 916 mSDtfsCounter, 1013 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 111 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1013 SdHoareTripleChecker+Valid, 921 SdHoareTripleChecker+Invalid, 111 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 111 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-04-01 07:17:49,330 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1013 Valid, 921 Invalid, 111 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 111 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-04-01 07:17:49,343 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 794 states. [2023-04-01 07:17:49,393 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 794 to 794. [2023-04-01 07:17:49,395 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 794 states, 464 states have (on average 1.2887931034482758) internal successors, (598), 478 states have internal predecessors, (598), 214 states have call successors, (214), 118 states have call predecessors, (214), 115 states have return successors, (208), 205 states have call predecessors, (208), 208 states have call successors, (208) [2023-04-01 07:17:49,398 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 794 states to 794 states and 1020 transitions. [2023-04-01 07:17:49,399 INFO L78 Accepts]: Start accepts. Automaton has 794 states and 1020 transitions. Word has length 24 [2023-04-01 07:17:49,400 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-01 07:17:49,400 INFO L495 AbstractCegarLoop]: Abstraction has 794 states and 1020 transitions. [2023-04-01 07:17:49,401 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 3 states have call successors, (8), 3 states have call predecessors, (8), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-04-01 07:17:49,401 INFO L276 IsEmpty]: Start isEmpty. Operand 794 states and 1020 transitions. [2023-04-01 07:17:49,401 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2023-04-01 07:17:49,402 INFO L187 NwaCegarLoop]: Found error trace [2023-04-01 07:17:49,402 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] [2023-04-01 07:17:49,402 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-04-01 07:17:49,402 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-01 07:17:49,402 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-01 07:17:49,402 INFO L85 PathProgramCache]: Analyzing trace with hash -1115096938, now seen corresponding path program 1 times [2023-04-01 07:17:49,403 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-01 07:17:49,403 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1246621349] [2023-04-01 07:17:49,403 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-01 07:17:49,403 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-01 07:17:49,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 07:17:49,449 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-04-01 07:17:49,450 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-01 07:17:49,450 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1246621349] [2023-04-01 07:17:49,450 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1246621349] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-01 07:17:49,450 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-01 07:17:49,450 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-04-01 07:17:49,450 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [128419505] [2023-04-01 07:17:49,450 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-01 07:17:49,451 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-04-01 07:17:49,451 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-01 07:17:49,452 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-04-01 07:17:49,452 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-04-01 07:17:49,452 INFO L87 Difference]: Start difference. First operand 794 states and 1020 transitions. Second operand has 3 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 3 states have call successors, (8), 3 states have call predecessors, (8), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-04-01 07:17:49,655 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-01 07:17:49,656 INFO L93 Difference]: Finished difference Result 796 states and 1021 transitions. [2023-04-01 07:17:49,656 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-04-01 07:17:49,656 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 3 states have call successors, (8), 3 states have call predecessors, (8), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 25 [2023-04-01 07:17:49,656 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-01 07:17:49,662 INFO L225 Difference]: With dead ends: 796 [2023-04-01 07:17:49,662 INFO L226 Difference]: Without dead ends: 793 [2023-04-01 07:17:49,665 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-04-01 07:17:49,667 INFO L413 NwaCegarLoop]: 909 mSDtfsCounter, 1004 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 110 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1004 SdHoareTripleChecker+Valid, 914 SdHoareTripleChecker+Invalid, 110 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 110 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-04-01 07:17:49,668 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1004 Valid, 914 Invalid, 110 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 110 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-04-01 07:17:49,670 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 793 states. [2023-04-01 07:17:49,711 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 793 to 793. [2023-04-01 07:17:49,713 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 793 states, 464 states have (on average 1.2866379310344827) internal successors, (597), 477 states have internal predecessors, (597), 213 states have call successors, (213), 118 states have call predecessors, (213), 115 states have return successors, (208), 205 states have call predecessors, (208), 208 states have call successors, (208) [2023-04-01 07:17:49,715 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 793 states to 793 states and 1018 transitions. [2023-04-01 07:17:49,716 INFO L78 Accepts]: Start accepts. Automaton has 793 states and 1018 transitions. Word has length 25 [2023-04-01 07:17:49,716 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-01 07:17:49,716 INFO L495 AbstractCegarLoop]: Abstraction has 793 states and 1018 transitions. [2023-04-01 07:17:49,716 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 3 states have call successors, (8), 3 states have call predecessors, (8), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-04-01 07:17:49,717 INFO L276 IsEmpty]: Start isEmpty. Operand 793 states and 1018 transitions. [2023-04-01 07:17:49,717 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2023-04-01 07:17:49,717 INFO L187 NwaCegarLoop]: Found error trace [2023-04-01 07:17:49,717 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] [2023-04-01 07:17:49,717 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-04-01 07:17:49,718 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-01 07:17:49,718 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-01 07:17:49,718 INFO L85 PathProgramCache]: Analyzing trace with hash -208834877, now seen corresponding path program 1 times [2023-04-01 07:17:49,718 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-01 07:17:49,718 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [10438274] [2023-04-01 07:17:49,718 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-01 07:17:49,718 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-01 07:17:49,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 07:17:49,799 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-04-01 07:17:49,799 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-01 07:17:49,799 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [10438274] [2023-04-01 07:17:49,799 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [10438274] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-01 07:17:49,799 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-01 07:17:49,799 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-04-01 07:17:49,799 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [520397556] [2023-04-01 07:17:49,799 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-01 07:17:49,800 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-04-01 07:17:49,800 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-01 07:17:49,800 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-04-01 07:17:49,800 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-04-01 07:17:49,800 INFO L87 Difference]: Start difference. First operand 793 states and 1018 transitions. Second operand has 3 states, 3 states have (on average 4.333333333333333) internal successors, (13), 3 states have internal predecessors, (13), 3 states have call successors, (8), 3 states have call predecessors, (8), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-04-01 07:17:50,136 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-01 07:17:50,137 INFO L93 Difference]: Finished difference Result 1043 states and 1327 transitions. [2023-04-01 07:17:50,137 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-04-01 07:17:50,137 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 4.333333333333333) internal successors, (13), 3 states have internal predecessors, (13), 3 states have call successors, (8), 3 states have call predecessors, (8), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 26 [2023-04-01 07:17:50,137 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-01 07:17:50,141 INFO L225 Difference]: With dead ends: 1043 [2023-04-01 07:17:50,142 INFO L226 Difference]: Without dead ends: 1028 [2023-04-01 07:17:50,142 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-04-01 07:17:50,143 INFO L413 NwaCegarLoop]: 933 mSDtfsCounter, 359 mSDsluCounter, 843 mSDsCounter, 0 mSdLazyCounter, 211 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 359 SdHoareTripleChecker+Valid, 1776 SdHoareTripleChecker+Invalid, 214 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 211 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-04-01 07:17:50,143 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [359 Valid, 1776 Invalid, 214 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 211 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-04-01 07:17:50,146 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1028 states. [2023-04-01 07:17:50,186 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1028 to 1028. [2023-04-01 07:17:50,187 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1028 states, 590 states have (on average 1.2627118644067796) internal successors, (745), 606 states have internal predecessors, (745), 277 states have call successors, (277), 167 states have call predecessors, (277), 160 states have return successors, (284), 262 states have call predecessors, (284), 272 states have call successors, (284) [2023-04-01 07:17:50,191 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1028 states to 1028 states and 1306 transitions. [2023-04-01 07:17:50,191 INFO L78 Accepts]: Start accepts. Automaton has 1028 states and 1306 transitions. Word has length 26 [2023-04-01 07:17:50,192 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-01 07:17:50,192 INFO L495 AbstractCegarLoop]: Abstraction has 1028 states and 1306 transitions. [2023-04-01 07:17:50,192 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 4.333333333333333) internal successors, (13), 3 states have internal predecessors, (13), 3 states have call successors, (8), 3 states have call predecessors, (8), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-04-01 07:17:50,192 INFO L276 IsEmpty]: Start isEmpty. Operand 1028 states and 1306 transitions. [2023-04-01 07:17:50,199 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2023-04-01 07:17:50,199 INFO L187 NwaCegarLoop]: Found error trace [2023-04-01 07:17:50,199 INFO L195 NwaCegarLoop]: trace histogram [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] [2023-04-01 07:17:50,200 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-04-01 07:17:50,200 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-01 07:17:50,200 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-01 07:17:50,200 INFO L85 PathProgramCache]: Analyzing trace with hash -1510917096, now seen corresponding path program 1 times [2023-04-01 07:17:50,200 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-01 07:17:50,200 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1020161214] [2023-04-01 07:17:50,200 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-01 07:17:50,200 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-01 07:17:50,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 07:17:50,278 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-04-01 07:17:50,278 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-01 07:17:50,278 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1020161214] [2023-04-01 07:17:50,278 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1020161214] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-01 07:17:50,278 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-01 07:17:50,278 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-04-01 07:17:50,279 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1589297020] [2023-04-01 07:17:50,279 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-01 07:17:50,279 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-04-01 07:17:50,279 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-01 07:17:50,279 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-04-01 07:17:50,279 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-04-01 07:17:50,280 INFO L87 Difference]: Start difference. First operand 1028 states and 1306 transitions. Second operand has 3 states, 3 states have (on average 10.0) internal successors, (30), 3 states have internal predecessors, (30), 3 states have call successors, (14), 2 states have call predecessors, (14), 1 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) [2023-04-01 07:17:50,661 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-01 07:17:50,662 INFO L93 Difference]: Finished difference Result 2085 states and 2681 transitions. [2023-04-01 07:17:50,662 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-04-01 07:17:50,662 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 10.0) internal successors, (30), 3 states have internal predecessors, (30), 3 states have call successors, (14), 2 states have call predecessors, (14), 1 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) Word has length 54 [2023-04-01 07:17:50,663 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-01 07:17:50,667 INFO L225 Difference]: With dead ends: 2085 [2023-04-01 07:17:50,667 INFO L226 Difference]: Without dead ends: 1075 [2023-04-01 07:17:50,670 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-04-01 07:17:50,671 INFO L413 NwaCegarLoop]: 903 mSDtfsCounter, 22 mSDsluCounter, 885 mSDsCounter, 0 mSdLazyCounter, 232 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33 SdHoareTripleChecker+Valid, 1788 SdHoareTripleChecker+Invalid, 238 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 232 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-04-01 07:17:50,671 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [33 Valid, 1788 Invalid, 238 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 232 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-04-01 07:17:50,673 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1075 states. [2023-04-01 07:17:50,705 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1075 to 1072. [2023-04-01 07:17:50,707 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1072 states, 622 states have (on average 1.2733118971061093) internal successors, (792), 638 states have internal predecessors, (792), 289 states have call successors, (289), 167 states have call predecessors, (289), 160 states have return successors, (300), 274 states have call predecessors, (300), 284 states have call successors, (300) [2023-04-01 07:17:50,711 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1072 states to 1072 states and 1381 transitions. [2023-04-01 07:17:50,711 INFO L78 Accepts]: Start accepts. Automaton has 1072 states and 1381 transitions. Word has length 54 [2023-04-01 07:17:50,712 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-01 07:17:50,712 INFO L495 AbstractCegarLoop]: Abstraction has 1072 states and 1381 transitions. [2023-04-01 07:17:50,712 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 10.0) internal successors, (30), 3 states have internal predecessors, (30), 3 states have call successors, (14), 2 states have call predecessors, (14), 1 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) [2023-04-01 07:17:50,712 INFO L276 IsEmpty]: Start isEmpty. Operand 1072 states and 1381 transitions. [2023-04-01 07:17:50,713 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2023-04-01 07:17:50,713 INFO L187 NwaCegarLoop]: Found error trace [2023-04-01 07:17:50,713 INFO L195 NwaCegarLoop]: trace histogram [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] [2023-04-01 07:17:50,713 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-04-01 07:17:50,714 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-01 07:17:50,714 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-01 07:17:50,714 INFO L85 PathProgramCache]: Analyzing trace with hash -9277315, now seen corresponding path program 1 times [2023-04-01 07:17:50,714 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-01 07:17:50,714 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [429078429] [2023-04-01 07:17:50,714 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-01 07:17:50,714 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-01 07:17:50,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 07:17:51,048 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-04-01 07:17:51,048 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-01 07:17:51,048 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [429078429] [2023-04-01 07:17:51,048 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [429078429] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-01 07:17:51,048 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-01 07:17:51,048 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-04-01 07:17:51,049 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [930221439] [2023-04-01 07:17:51,049 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-01 07:17:51,049 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-04-01 07:17:51,049 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-01 07:17:51,049 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-04-01 07:17:51,050 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2023-04-01 07:17:51,050 INFO L87 Difference]: Start difference. First operand 1072 states and 1381 transitions. Second operand has 8 states, 6 states have (on average 6.5) internal successors, (39), 6 states have internal predecessors, (39), 3 states have call successors, (15), 3 states have call predecessors, (15), 3 states have return successors, (9), 3 states have call predecessors, (9), 1 states have call successors, (9) [2023-04-01 07:17:52,224 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-01 07:17:52,224 INFO L93 Difference]: Finished difference Result 1196 states and 1507 transitions. [2023-04-01 07:17:52,224 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-04-01 07:17:52,225 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 6 states have (on average 6.5) internal successors, (39), 6 states have internal predecessors, (39), 3 states have call successors, (15), 3 states have call predecessors, (15), 3 states have return successors, (9), 3 states have call predecessors, (9), 1 states have call successors, (9) Word has length 64 [2023-04-01 07:17:52,225 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-01 07:17:52,230 INFO L225 Difference]: With dead ends: 1196 [2023-04-01 07:17:52,230 INFO L226 Difference]: Without dead ends: 1193 [2023-04-01 07:17:52,230 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2023-04-01 07:17:52,231 INFO L413 NwaCegarLoop]: 923 mSDtfsCounter, 1639 mSDsluCounter, 2803 mSDsCounter, 0 mSdLazyCounter, 619 mSolverCounterSat, 693 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1639 SdHoareTripleChecker+Valid, 3726 SdHoareTripleChecker+Invalid, 1312 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 693 IncrementalHoareTripleChecker+Valid, 619 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2023-04-01 07:17:52,231 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1639 Valid, 3726 Invalid, 1312 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [693 Valid, 619 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2023-04-01 07:17:52,233 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1193 states. [2023-04-01 07:17:52,267 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1193 to 1193. [2023-04-01 07:17:52,269 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1193 states, 686 states have (on average 1.2580174927113703) internal successors, (863), 703 states have internal predecessors, (863), 315 states have call successors, (315), 199 states have call predecessors, (315), 191 states have return successors, (326), 299 states have call predecessors, (326), 310 states have call successors, (326) [2023-04-01 07:17:52,273 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1193 states to 1193 states and 1504 transitions. [2023-04-01 07:17:52,274 INFO L78 Accepts]: Start accepts. Automaton has 1193 states and 1504 transitions. Word has length 64 [2023-04-01 07:17:52,274 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-01 07:17:52,274 INFO L495 AbstractCegarLoop]: Abstraction has 1193 states and 1504 transitions. [2023-04-01 07:17:52,274 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 6 states have (on average 6.5) internal successors, (39), 6 states have internal predecessors, (39), 3 states have call successors, (15), 3 states have call predecessors, (15), 3 states have return successors, (9), 3 states have call predecessors, (9), 1 states have call successors, (9) [2023-04-01 07:17:52,275 INFO L276 IsEmpty]: Start isEmpty. Operand 1193 states and 1504 transitions. [2023-04-01 07:17:52,276 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2023-04-01 07:17:52,276 INFO L187 NwaCegarLoop]: Found error trace [2023-04-01 07:17:52,276 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-01 07:17:52,277 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-04-01 07:17:52,277 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-01 07:17:52,277 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-01 07:17:52,277 INFO L85 PathProgramCache]: Analyzing trace with hash -1014601839, now seen corresponding path program 1 times [2023-04-01 07:17:52,277 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-01 07:17:52,277 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2143589257] [2023-04-01 07:17:52,277 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-01 07:17:52,277 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-01 07:17:52,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 07:17:52,675 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2023-04-01 07:17:52,675 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-01 07:17:52,675 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2143589257] [2023-04-01 07:17:52,675 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2143589257] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-01 07:17:52,675 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-01 07:17:52,676 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-04-01 07:17:52,676 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1712351434] [2023-04-01 07:17:52,676 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-01 07:17:52,676 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-04-01 07:17:52,676 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-01 07:17:52,676 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-04-01 07:17:52,677 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2023-04-01 07:17:52,677 INFO L87 Difference]: Start difference. First operand 1193 states and 1504 transitions. Second operand has 9 states, 7 states have (on average 5.857142857142857) internal successors, (41), 7 states have internal predecessors, (41), 4 states have call successors, (18), 4 states have call predecessors, (18), 5 states have return successors, (15), 5 states have call predecessors, (15), 3 states have call successors, (15) [2023-04-01 07:17:55,052 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-01 07:17:55,053 INFO L93 Difference]: Finished difference Result 1473 states and 1858 transitions. [2023-04-01 07:17:55,053 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-04-01 07:17:55,053 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 7 states have (on average 5.857142857142857) internal successors, (41), 7 states have internal predecessors, (41), 4 states have call successors, (18), 4 states have call predecessors, (18), 5 states have return successors, (15), 5 states have call predecessors, (15), 3 states have call successors, (15) Word has length 77 [2023-04-01 07:17:55,053 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-01 07:17:55,059 INFO L225 Difference]: With dead ends: 1473 [2023-04-01 07:17:55,059 INFO L226 Difference]: Without dead ends: 1458 [2023-04-01 07:17:55,059 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2023-04-01 07:17:55,060 INFO L413 NwaCegarLoop]: 338 mSDtfsCounter, 889 mSDsluCounter, 1372 mSDsCounter, 0 mSdLazyCounter, 2053 mSolverCounterSat, 279 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1062 SdHoareTripleChecker+Valid, 1710 SdHoareTripleChecker+Invalid, 2332 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 279 IncrementalHoareTripleChecker+Valid, 2053 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2023-04-01 07:17:55,060 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1062 Valid, 1710 Invalid, 2332 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [279 Valid, 2053 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2023-04-01 07:17:55,062 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1458 states. [2023-04-01 07:17:55,104 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1458 to 1424. [2023-04-01 07:17:55,106 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1424 states, 817 states have (on average 1.2533659730722153) internal successors, (1024), 840 states have internal predecessors, (1024), 369 states have call successors, (369), 237 states have call predecessors, (369), 237 states have return successors, (388), 356 states have call predecessors, (388), 364 states have call successors, (388) [2023-04-01 07:17:55,111 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1424 states to 1424 states and 1781 transitions. [2023-04-01 07:17:55,111 INFO L78 Accepts]: Start accepts. Automaton has 1424 states and 1781 transitions. Word has length 77 [2023-04-01 07:17:55,111 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-01 07:17:55,111 INFO L495 AbstractCegarLoop]: Abstraction has 1424 states and 1781 transitions. [2023-04-01 07:17:55,112 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 7 states have (on average 5.857142857142857) internal successors, (41), 7 states have internal predecessors, (41), 4 states have call successors, (18), 4 states have call predecessors, (18), 5 states have return successors, (15), 5 states have call predecessors, (15), 3 states have call successors, (15) [2023-04-01 07:17:55,112 INFO L276 IsEmpty]: Start isEmpty. Operand 1424 states and 1781 transitions. [2023-04-01 07:17:55,113 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2023-04-01 07:17:55,114 INFO L187 NwaCegarLoop]: Found error trace [2023-04-01 07:17:55,114 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-01 07:17:55,114 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-04-01 07:17:55,114 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-01 07:17:55,114 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-01 07:17:55,114 INFO L85 PathProgramCache]: Analyzing trace with hash 385373895, now seen corresponding path program 1 times [2023-04-01 07:17:55,114 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-01 07:17:55,114 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [775846525] [2023-04-01 07:17:55,115 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-01 07:17:55,115 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-01 07:17:55,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 07:17:55,205 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-04-01 07:17:55,205 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-01 07:17:55,205 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [775846525] [2023-04-01 07:17:55,205 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [775846525] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-01 07:17:55,205 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-01 07:17:55,205 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-04-01 07:17:55,205 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [864369222] [2023-04-01 07:17:55,206 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-01 07:17:55,206 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-04-01 07:17:55,206 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-01 07:17:55,206 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-04-01 07:17:55,206 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-04-01 07:17:55,207 INFO L87 Difference]: Start difference. First operand 1424 states and 1781 transitions. Second operand has 5 states, 5 states have (on average 10.0) internal successors, (50), 4 states have internal predecessors, (50), 3 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (16), 4 states have call predecessors, (16), 3 states have call successors, (16) [2023-04-01 07:17:55,729 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-01 07:17:55,730 INFO L93 Difference]: Finished difference Result 2848 states and 3567 transitions. [2023-04-01 07:17:55,730 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-04-01 07:17:55,730 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.0) internal successors, (50), 4 states have internal predecessors, (50), 3 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (16), 4 states have call predecessors, (16), 3 states have call successors, (16) Word has length 89 [2023-04-01 07:17:55,731 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-01 07:17:55,736 INFO L225 Difference]: With dead ends: 2848 [2023-04-01 07:17:55,736 INFO L226 Difference]: Without dead ends: 1432 [2023-04-01 07:17:55,740 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-04-01 07:17:55,740 INFO L413 NwaCegarLoop]: 912 mSDtfsCounter, 1 mSDsluCounter, 2726 mSDsCounter, 0 mSdLazyCounter, 447 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 3638 SdHoareTripleChecker+Invalid, 447 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 447 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-04-01 07:17:55,741 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 3638 Invalid, 447 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 447 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-04-01 07:17:55,743 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1432 states. [2023-04-01 07:17:55,794 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1432 to 1429. [2023-04-01 07:17:55,796 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1429 states, 820 states have (on average 1.25) internal successors, (1025), 843 states have internal predecessors, (1025), 370 states have call successors, (370), 237 states have call predecessors, (370), 238 states have return successors, (390), 358 states have call predecessors, (390), 365 states have call successors, (390) [2023-04-01 07:17:55,801 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1429 states to 1429 states and 1785 transitions. [2023-04-01 07:17:55,802 INFO L78 Accepts]: Start accepts. Automaton has 1429 states and 1785 transitions. Word has length 89 [2023-04-01 07:17:55,802 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-01 07:17:55,802 INFO L495 AbstractCegarLoop]: Abstraction has 1429 states and 1785 transitions. [2023-04-01 07:17:55,802 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.0) internal successors, (50), 4 states have internal predecessors, (50), 3 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (16), 4 states have call predecessors, (16), 3 states have call successors, (16) [2023-04-01 07:17:55,803 INFO L276 IsEmpty]: Start isEmpty. Operand 1429 states and 1785 transitions. [2023-04-01 07:17:55,807 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2023-04-01 07:17:55,807 INFO L187 NwaCegarLoop]: Found error trace [2023-04-01 07:17:55,807 INFO L195 NwaCegarLoop]: trace histogram [3, 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] [2023-04-01 07:17:55,807 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-04-01 07:17:55,807 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-01 07:17:55,807 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-01 07:17:55,807 INFO L85 PathProgramCache]: Analyzing trace with hash 223751591, now seen corresponding path program 1 times [2023-04-01 07:17:55,808 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-01 07:17:55,808 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1566741833] [2023-04-01 07:17:55,808 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-01 07:17:55,808 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-01 07:17:55,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 07:17:56,169 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2023-04-01 07:17:56,169 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-01 07:17:56,169 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1566741833] [2023-04-01 07:17:56,170 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1566741833] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-01 07:17:56,170 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-01 07:17:56,170 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-04-01 07:17:56,170 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [964778392] [2023-04-01 07:17:56,170 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-01 07:17:56,170 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-04-01 07:17:56,170 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-01 07:17:56,171 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-04-01 07:17:56,171 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2023-04-01 07:17:56,171 INFO L87 Difference]: Start difference. First operand 1429 states and 1785 transitions. Second operand has 8 states, 6 states have (on average 9.333333333333334) internal successors, (56), 6 states have internal predecessors, (56), 3 states have call successors, (27), 3 states have call predecessors, (27), 3 states have return successors, (22), 3 states have call predecessors, (22), 1 states have call successors, (22) [2023-04-01 07:17:56,919 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-01 07:17:56,919 INFO L93 Difference]: Finished difference Result 1462 states and 1820 transitions. [2023-04-01 07:17:56,920 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-04-01 07:17:56,920 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 6 states have (on average 9.333333333333334) internal successors, (56), 6 states have internal predecessors, (56), 3 states have call successors, (27), 3 states have call predecessors, (27), 3 states have return successors, (22), 3 states have call predecessors, (22), 1 states have call successors, (22) Word has length 110 [2023-04-01 07:17:56,920 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-01 07:17:56,925 INFO L225 Difference]: With dead ends: 1462 [2023-04-01 07:17:56,925 INFO L226 Difference]: Without dead ends: 1459 [2023-04-01 07:17:56,926 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2023-04-01 07:17:56,928 INFO L413 NwaCegarLoop]: 931 mSDtfsCounter, 302 mSDsluCounter, 4268 mSDsCounter, 0 mSdLazyCounter, 685 mSolverCounterSat, 156 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 302 SdHoareTripleChecker+Valid, 5199 SdHoareTripleChecker+Invalid, 841 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 156 IncrementalHoareTripleChecker+Valid, 685 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-04-01 07:17:56,929 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [302 Valid, 5199 Invalid, 841 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [156 Valid, 685 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-04-01 07:17:56,930 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1459 states. [2023-04-01 07:17:56,975 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1459 to 1457. [2023-04-01 07:17:56,977 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1457 states, 836 states have (on average 1.2476076555023923) internal successors, (1043), 859 states have internal predecessors, (1043), 376 states have call successors, (376), 243 states have call predecessors, (376), 244 states have return successors, (396), 364 states have call predecessors, (396), 371 states have call successors, (396) [2023-04-01 07:17:56,981 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1457 states to 1457 states and 1815 transitions. [2023-04-01 07:17:56,982 INFO L78 Accepts]: Start accepts. Automaton has 1457 states and 1815 transitions. Word has length 110 [2023-04-01 07:17:56,983 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-01 07:17:56,983 INFO L495 AbstractCegarLoop]: Abstraction has 1457 states and 1815 transitions. [2023-04-01 07:17:56,983 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 6 states have (on average 9.333333333333334) internal successors, (56), 6 states have internal predecessors, (56), 3 states have call successors, (27), 3 states have call predecessors, (27), 3 states have return successors, (22), 3 states have call predecessors, (22), 1 states have call successors, (22) [2023-04-01 07:17:56,983 INFO L276 IsEmpty]: Start isEmpty. Operand 1457 states and 1815 transitions. [2023-04-01 07:17:56,988 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2023-04-01 07:17:56,988 INFO L187 NwaCegarLoop]: Found error trace [2023-04-01 07:17:56,988 INFO L195 NwaCegarLoop]: trace histogram [3, 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] [2023-04-01 07:17:56,988 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-04-01 07:17:56,988 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-01 07:17:56,989 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-01 07:17:56,989 INFO L85 PathProgramCache]: Analyzing trace with hash -1952797371, now seen corresponding path program 1 times [2023-04-01 07:17:56,989 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-01 07:17:56,989 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [251604113] [2023-04-01 07:17:56,989 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-01 07:17:56,989 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-01 07:17:57,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 07:17:57,107 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2023-04-01 07:17:57,107 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-01 07:17:57,107 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [251604113] [2023-04-01 07:17:57,107 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [251604113] provided 0 perfect and 1 imperfect interpolant sequences [2023-04-01 07:17:57,107 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1993738431] [2023-04-01 07:17:57,107 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-01 07:17:57,108 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-01 07:17:57,108 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-01 07:17:57,177 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-04-01 07:17:57,181 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-04-01 07:17:57,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 07:17:57,542 INFO L262 TraceCheckSpWp]: Trace formula consists of 1034 conjuncts, 3 conjunts are in the unsatisfiable core [2023-04-01 07:17:57,551 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-04-01 07:17:57,640 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 4 proven. 3 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-04-01 07:17:57,640 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-04-01 07:17:57,815 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2023-04-01 07:17:57,816 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1993738431] provided 0 perfect and 2 imperfect interpolant sequences [2023-04-01 07:17:57,816 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1248055028] [2023-04-01 07:17:57,834 INFO L159 IcfgInterpreter]: Started Sifa with 109 locations of interest [2023-04-01 07:17:57,834 INFO L166 IcfgInterpreter]: Building call graph [2023-04-01 07:17:57,837 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2023-04-01 07:17:57,841 INFO L176 IcfgInterpreter]: Starting interpretation [2023-04-01 07:17:57,841 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2023-04-01 07:17:58,795 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.init with input of size 31 for LOIs [2023-04-01 07:17:59,150 INFO L197 IcfgInterpreter]: Interpreting procedure main with input of size 50 for LOIs [2023-04-01 07:18:01,887 INFO L197 IcfgInterpreter]: Interpreting procedure uinput_open with input of size 42 for LOIs [2023-04-01 07:18:02,004 INFO L197 IcfgInterpreter]: Interpreting procedure kzalloc with input of size 78 for LOIs [2023-04-01 07:18:02,102 INFO L197 IcfgInterpreter]: Interpreting procedure kmalloc with input of size 82 for LOIs [2023-04-01 07:18:02,187 INFO L197 IcfgInterpreter]: Interpreting procedure __kmalloc with input of size 82 for LOIs [2023-04-01 07:18:02,268 INFO L197 IcfgInterpreter]: Interpreting procedure ldv_malloc with input of size 84 for LOIs [2023-04-01 07:18:02,299 INFO L197 IcfgInterpreter]: Interpreting procedure uinput_init with input of size 27 for LOIs [2023-04-01 07:18:02,322 INFO L197 IcfgInterpreter]: Interpreting procedure misc_register with input of size 31 for LOIs [2023-04-01 07:18:02,325 INFO L197 IcfgInterpreter]: Interpreting procedure ldv_handler_precall with input of size 27 for LOIs [2023-04-01 07:18:02,328 INFO L197 IcfgInterpreter]: Interpreting procedure ldv_initialize with input of size 33 for LOIs [2023-04-01 07:18:02,331 INFO L180 IcfgInterpreter]: Interpretation finished [2023-04-01 07:18:07,973 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSifa [1248055028] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-01 07:18:07,974 INFO L185 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2023-04-01 07:18:07,974 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [44] imperfect sequences [4, 4, 4] total 48 [2023-04-01 07:18:07,974 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1812539174] [2023-04-01 07:18:07,974 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-01 07:18:07,975 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 45 states [2023-04-01 07:18:07,975 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-01 07:18:07,976 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 45 interpolants. [2023-04-01 07:18:07,977 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=237, Invalid=2019, Unknown=0, NotChecked=0, Total=2256 [2023-04-01 07:18:07,977 INFO L87 Difference]: Start difference. First operand 1457 states and 1815 transitions. Second operand has 45 states, 28 states have (on average 2.1785714285714284) internal successors, (61), 26 states have internal predecessors, (61), 12 states have call successors, (28), 11 states have call predecessors, (28), 10 states have return successors, (23), 10 states have call predecessors, (23), 11 states have call successors, (23)