/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/default/taipan/svcomp-Reach-32bit-Taipan_Default.epf -tc ../../../trunk/examples/toolchains/AutomizerC.xml --sifa.abstract.domain OctagonDomain -i ../sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--hwmon--amc6821.ko-main.cil.out.i -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-f954360 [2023-04-03 04:26:29,890 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-04-03 04:26:29,892 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-04-03 04:26:29,919 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-04-03 04:26:29,920 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-04-03 04:26:29,922 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-04-03 04:26:29,924 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-04-03 04:26:29,926 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-04-03 04:26:29,927 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-04-03 04:26:29,931 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-04-03 04:26:29,932 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-04-03 04:26:29,933 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-04-03 04:26:29,933 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-04-03 04:26:29,935 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-04-03 04:26:29,936 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-04-03 04:26:29,936 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-04-03 04:26:29,937 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-04-03 04:26:29,937 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-04-03 04:26:29,939 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-04-03 04:26:29,942 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-04-03 04:26:29,943 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-04-03 04:26:29,944 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-04-03 04:26:29,945 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-04-03 04:26:29,946 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-04-03 04:26:29,952 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-04-03 04:26:29,952 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-04-03 04:26:29,952 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-04-03 04:26:29,953 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-04-03 04:26:29,953 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-04-03 04:26:29,954 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-04-03 04:26:29,954 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-04-03 04:26:29,954 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-04-03 04:26:29,955 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-04-03 04:26:29,956 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-04-03 04:26:29,956 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-04-03 04:26:29,956 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-04-03 04:26:29,957 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-04-03 04:26:29,957 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-04-03 04:26:29,957 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-04-03 04:26:29,957 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-04-03 04:26:29,958 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-04-03 04:26:29,958 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/taipan/svcomp-Reach-32bit-Taipan_Default.epf [2023-04-03 04:26:29,981 INFO L113 SettingsManager]: Loading preferences was successful [2023-04-03 04:26:29,981 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-04-03 04:26:29,982 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-04-03 04:26:29,982 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-04-03 04:26:29,982 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-04-03 04:26:29,982 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-04-03 04:26:29,983 INFO L138 SettingsManager]: * User list type=DISABLED [2023-04-03 04:26:29,983 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-04-03 04:26:29,983 INFO L138 SettingsManager]: * Explicit value domain=true [2023-04-03 04:26:29,983 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-04-03 04:26:29,983 INFO L138 SettingsManager]: * Octagon Domain=false [2023-04-03 04:26:29,984 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2023-04-03 04:26:29,984 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-04-03 04:26:29,984 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-04-03 04:26:29,984 INFO L138 SettingsManager]: * Interval Domain=false [2023-04-03 04:26:29,984 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-04-03 04:26:29,984 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-04-03 04:26:29,984 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2023-04-03 04:26:29,984 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-04-03 04:26:29,984 INFO L138 SettingsManager]: * sizeof long=4 [2023-04-03 04:26:29,985 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-04-03 04:26:29,985 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-04-03 04:26:29,985 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-04-03 04:26:29,985 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-04-03 04:26:29,985 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-04-03 04:26:29,985 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-04-03 04:26:29,985 INFO L138 SettingsManager]: * sizeof long double=12 [2023-04-03 04:26:29,985 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-04-03 04:26:29,985 INFO L138 SettingsManager]: * Use constant arrays=true [2023-04-03 04:26:29,985 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-04-03 04:26:29,985 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-04-03 04:26:29,986 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-04-03 04:26:29,986 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-04-03 04:26:29,986 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-04-03 04:26:29,986 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2023-04-03 04:26:29,986 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-04-03 04:26:29,986 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-04-03 04:26:29,986 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-04-03 04:26:29,986 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-04-03 04:26:29,986 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-04-03 04:26:29,986 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-04-03 04:26:29,987 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Abstract Domain -> OctagonDomain [2023-04-03 04:26:30,168 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-04-03 04:26:30,190 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-04-03 04:26:30,192 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-04-03 04:26:30,193 INFO L271 PluginConnector]: Initializing CDTParser... [2023-04-03 04:26:30,194 INFO L275 PluginConnector]: CDTParser initialized [2023-04-03 04:26:30,194 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--hwmon--amc6821.ko-main.cil.out.i [2023-04-03 04:26:31,216 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-04-03 04:26:31,550 INFO L351 CDTParser]: Found 1 translation units. [2023-04-03 04:26:31,551 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--hwmon--amc6821.ko-main.cil.out.i [2023-04-03 04:26:31,591 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/874aa5104/170938eb531c4734adab1aa0a4082fe8/FLAGd9cb0413f [2023-04-03 04:26:31,602 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/874aa5104/170938eb531c4734adab1aa0a4082fe8 [2023-04-03 04:26:31,603 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-04-03 04:26:31,604 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2023-04-03 04:26:31,608 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-04-03 04:26:31,608 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-04-03 04:26:31,610 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-04-03 04:26:31,610 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.04 04:26:31" (1/1) ... [2023-04-03 04:26:31,611 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@277dfdb5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.04 04:26:31, skipping insertion in model container [2023-04-03 04:26:31,611 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.04 04:26:31" (1/1) ... [2023-04-03 04:26:31,616 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-04-03 04:26:31,664 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-04-03 04:26:32,368 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--hwmon--amc6821.ko-main.cil.out.i[139464,139477] [2023-04-03 04:26:32,415 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-04-03 04:26:32,456 INFO L203 MainTranslator]: Completed pre-run [2023-04-03 04:26:32,599 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--hwmon--amc6821.ko-main.cil.out.i[139464,139477] [2023-04-03 04:26:32,606 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-04-03 04:26:32,708 WARN L667 CHandler]: The function sprintf is called, but not defined or handled by StandardFunctionHandler. [2023-04-03 04:26:32,713 INFO L208 MainTranslator]: Completed translation [2023-04-03 04:26:32,713 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.04 04:26:32 WrapperNode [2023-04-03 04:26:32,713 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-04-03 04:26:32,714 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-04-03 04:26:32,714 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-04-03 04:26:32,714 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-04-03 04:26:32,748 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.04 04:26:32" (1/1) ... [2023-04-03 04:26:32,748 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.04 04:26:32" (1/1) ... [2023-04-03 04:26:32,798 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.04 04:26:32" (1/1) ... [2023-04-03 04:26:32,798 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.04 04:26:32" (1/1) ... [2023-04-03 04:26:32,872 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.04 04:26:32" (1/1) ... [2023-04-03 04:26:32,895 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.04 04:26:32" (1/1) ... [2023-04-03 04:26:32,910 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.04 04:26:32" (1/1) ... [2023-04-03 04:26:32,923 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.04 04:26:32" (1/1) ... [2023-04-03 04:26:32,949 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-04-03 04:26:32,950 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-04-03 04:26:32,950 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-04-03 04:26:32,950 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-04-03 04:26:32,951 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.04 04:26:32" (1/1) ... [2023-04-03 04:26:32,955 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-04-03 04:26:32,963 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-03 04:26:32,977 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-04-03 04:26:32,985 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-04-03 04:26:33,008 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2023-04-03 04:26:33,008 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-04-03 04:26:33,008 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~~u32~0 [2023-04-03 04:26:33,009 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2023-04-03 04:26:33,009 INFO L138 BoogieDeclarations]: Found implementation of procedure kstrtol [2023-04-03 04:26:33,009 INFO L138 BoogieDeclarations]: Found implementation of procedure PTR_ERR [2023-04-03 04:26:33,009 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2023-04-03 04:26:33,009 INFO L138 BoogieDeclarations]: Found implementation of procedure i2c_get_clientdata [2023-04-03 04:26:33,010 INFO L138 BoogieDeclarations]: Found implementation of procedure i2c_set_clientdata [2023-04-03 04:26:33,010 INFO L138 BoogieDeclarations]: Found implementation of procedure i2c_get_functionality [2023-04-03 04:26:33,010 INFO L138 BoogieDeclarations]: Found implementation of procedure i2c_check_functionality [2023-04-03 04:26:33,010 INFO L138 BoogieDeclarations]: Found implementation of procedure SENSORS_LIMIT [2023-04-03 04:26:33,010 INFO L138 BoogieDeclarations]: Found implementation of procedure get_temp [2023-04-03 04:26:33,010 INFO L138 BoogieDeclarations]: Found implementation of procedure set_temp [2023-04-03 04:26:33,010 INFO L138 BoogieDeclarations]: Found implementation of procedure get_temp_alarm [2023-04-03 04:26:33,010 INFO L138 BoogieDeclarations]: Found implementation of procedure get_temp2_fault [2023-04-03 04:26:33,010 INFO L138 BoogieDeclarations]: Found implementation of procedure get_pwm1 [2023-04-03 04:26:33,010 INFO L138 BoogieDeclarations]: Found implementation of procedure set_pwm1 [2023-04-03 04:26:33,010 INFO L138 BoogieDeclarations]: Found implementation of procedure get_pwm1_enable [2023-04-03 04:26:33,010 INFO L138 BoogieDeclarations]: Found implementation of procedure set_pwm1_enable [2023-04-03 04:26:33,010 INFO L138 BoogieDeclarations]: Found implementation of procedure get_pwm1_auto_channels_temp [2023-04-03 04:26:33,010 INFO L138 BoogieDeclarations]: Found implementation of procedure get_temp_auto_point_temp [2023-04-03 04:26:33,010 INFO L138 BoogieDeclarations]: Found implementation of procedure get_pwm1_auto_point_pwm [2023-04-03 04:26:33,010 INFO L138 BoogieDeclarations]: Found implementation of procedure set_slope_register [2023-04-03 04:26:33,010 INFO L138 BoogieDeclarations]: Found implementation of procedure set_temp_auto_point_temp [2023-04-03 04:26:33,011 INFO L138 BoogieDeclarations]: Found implementation of procedure set_pwm1_auto_point_pwm [2023-04-03 04:26:33,011 INFO L138 BoogieDeclarations]: Found implementation of procedure get_fan [2023-04-03 04:26:33,011 INFO L138 BoogieDeclarations]: Found implementation of procedure get_fan1_fault [2023-04-03 04:26:33,011 INFO L138 BoogieDeclarations]: Found implementation of procedure set_fan [2023-04-03 04:26:33,011 INFO L138 BoogieDeclarations]: Found implementation of procedure get_fan1_div [2023-04-03 04:26:33,011 INFO L138 BoogieDeclarations]: Found implementation of procedure set_fan1_div [2023-04-03 04:26:33,011 INFO L138 BoogieDeclarations]: Found implementation of procedure amc6821_detect [2023-04-03 04:26:33,011 INFO L138 BoogieDeclarations]: Found implementation of procedure amc6821_probe [2023-04-03 04:26:33,011 INFO L138 BoogieDeclarations]: Found implementation of procedure amc6821_remove [2023-04-03 04:26:33,011 INFO L138 BoogieDeclarations]: Found implementation of procedure amc6821_init_client [2023-04-03 04:26:33,011 INFO L138 BoogieDeclarations]: Found implementation of procedure amc6821_update_device [2023-04-03 04:26:33,011 INFO L138 BoogieDeclarations]: Found implementation of procedure amc6821_driver_init [2023-04-03 04:26:33,012 INFO L138 BoogieDeclarations]: Found implementation of procedure amc6821_driver_exit [2023-04-03 04:26:33,012 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2023-04-03 04:26:33,012 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_1 [2023-04-03 04:26:33,012 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_2 [2023-04-03 04:26:33,012 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_3 [2023-04-03 04:26:33,012 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_trylock_4 [2023-04-03 04:26:33,012 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_5 [2023-04-03 04:26:33,013 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_6 [2023-04-03 04:26:33,013 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_7 [2023-04-03 04:26:33,013 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_8 [2023-04-03 04:26:33,013 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_9 [2023-04-03 04:26:33,013 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_10 [2023-04-03 04:26:33,013 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_11 [2023-04-03 04:26:33,014 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_12 [2023-04-03 04:26:33,014 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_13 [2023-04-03 04:26:33,014 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_14 [2023-04-03 04:26:33,014 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_15 [2023-04-03 04:26:33,014 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_16 [2023-04-03 04:26:33,014 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_17 [2023-04-03 04:26:33,014 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_18 [2023-04-03 04:26:33,014 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_19 [2023-04-03 04:26:33,015 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_20 [2023-04-03 04:26:33,015 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_21 [2023-04-03 04:26:33,015 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_22 [2023-04-03 04:26:33,015 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_23 [2023-04-03 04:26:33,015 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2023-04-03 04:26:33,016 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2023-04-03 04:26:33,016 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_trap [2023-04-03 04:26:33,016 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_interruptible_cred_guard_mutex_of_signal_struct [2023-04-03 04:26:33,016 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_killable_cred_guard_mutex_of_signal_struct [2023-04-03 04:26:33,016 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_cred_guard_mutex_of_signal_struct [2023-04-03 04:26:33,016 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_trylock_cred_guard_mutex_of_signal_struct [2023-04-03 04:26:33,016 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_dec_and_mutex_lock_cred_guard_mutex_of_signal_struct [2023-04-03 04:26:33,016 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_is_locked_cred_guard_mutex_of_signal_struct [2023-04-03 04:26:33,016 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_cred_guard_mutex_of_signal_struct [2023-04-03 04:26:33,016 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_interruptible_lock [2023-04-03 04:26:33,016 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_killable_lock [2023-04-03 04:26:33,016 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_lock [2023-04-03 04:26:33,016 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_trylock_lock [2023-04-03 04:26:33,017 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_dec_and_mutex_lock_lock [2023-04-03 04:26:33,017 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_is_locked_lock [2023-04-03 04:26:33,017 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_lock [2023-04-03 04:26:33,017 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_interruptible_mutex_of_device [2023-04-03 04:26:33,017 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_killable_mutex_of_device [2023-04-03 04:26:33,017 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_mutex_of_device [2023-04-03 04:26:33,017 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_trylock_mutex_of_device [2023-04-03 04:26:33,018 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_dec_and_mutex_lock_mutex_of_device [2023-04-03 04:26:33,018 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_is_locked_mutex_of_device [2023-04-03 04:26:33,018 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_mutex_of_device [2023-04-03 04:26:33,018 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_interruptible_update_lock_of_amc6821_data [2023-04-03 04:26:33,018 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_killable_update_lock_of_amc6821_data [2023-04-03 04:26:33,018 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_update_lock_of_amc6821_data [2023-04-03 04:26:33,018 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_trylock_update_lock_of_amc6821_data [2023-04-03 04:26:33,018 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_dec_and_mutex_lock_update_lock_of_amc6821_data [2023-04-03 04:26:33,018 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_is_locked_update_lock_of_amc6821_data [2023-04-03 04:26:33,018 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_update_lock_of_amc6821_data [2023-04-03 04:26:33,019 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize [2023-04-03 04:26:33,019 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2023-04-03 04:26:33,019 INFO L138 BoogieDeclarations]: Found implementation of procedure __dynamic_dev_dbg [2023-04-03 04:26:33,019 INFO L138 BoogieDeclarations]: Found implementation of procedure __mutex_init [2023-04-03 04:26:33,019 INFO L138 BoogieDeclarations]: Found implementation of procedure _dev_info [2023-04-03 04:26:33,019 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_err [2023-04-03 04:26:33,019 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-04-03 04:26:33,019 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2023-04-03 04:26:33,019 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_get_drvdata [2023-04-03 04:26:33,019 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_set_drvdata [2023-04-03 04:26:33,019 INFO L138 BoogieDeclarations]: Found implementation of procedure devm_kzalloc [2023-04-03 04:26:33,019 INFO L138 BoogieDeclarations]: Found implementation of procedure hwmon_device_register [2023-04-03 04:26:33,019 INFO L138 BoogieDeclarations]: Found implementation of procedure hwmon_device_unregister [2023-04-03 04:26:33,020 INFO L138 BoogieDeclarations]: Found implementation of procedure i2c_del_driver [2023-04-03 04:26:33,020 INFO L138 BoogieDeclarations]: Found implementation of procedure i2c_register_driver [2023-04-03 04:26:33,020 INFO L138 BoogieDeclarations]: Found implementation of procedure i2c_smbus_read_byte_data [2023-04-03 04:26:33,020 INFO L138 BoogieDeclarations]: Found implementation of procedure i2c_smbus_write_byte_data [2023-04-03 04:26:33,020 INFO L138 BoogieDeclarations]: Found implementation of procedure kstrtoll [2023-04-03 04:26:33,020 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock [2023-04-03 04:26:33,020 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_trylock [2023-04-03 04:26:33,020 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2023-04-03 04:26:33,020 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcpy [2023-04-03 04:26:33,020 INFO L138 BoogieDeclarations]: Found implementation of procedure sysfs_create_group [2023-04-03 04:26:33,020 INFO L138 BoogieDeclarations]: Found implementation of procedure sysfs_remove_group [2023-04-03 04:26:33,021 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2023-04-03 04:26:33,021 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2023-04-03 04:26:33,021 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2023-04-03 04:26:33,021 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_perror_fail [2023-04-03 04:26:33,023 INFO L130 BoogieDeclarations]: Found specification of procedure __assert [2023-04-03 04:26:33,023 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2023-04-03 04:26:33,027 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-04-03 04:26:33,027 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2023-04-03 04:26:33,027 INFO L130 BoogieDeclarations]: Found specification of procedure __dynamic_dev_dbg [2023-04-03 04:26:33,027 INFO L130 BoogieDeclarations]: Found specification of procedure kstrtoll [2023-04-03 04:26:33,027 INFO L130 BoogieDeclarations]: Found specification of procedure kstrtol [2023-04-03 04:26:33,027 INFO L130 BoogieDeclarations]: Found specification of procedure sprintf [2023-04-03 04:26:33,027 INFO L130 BoogieDeclarations]: Found specification of procedure strlcpy [2023-04-03 04:26:33,027 INFO L130 BoogieDeclarations]: Found specification of procedure PTR_ERR [2023-04-03 04:26:33,028 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2023-04-03 04:26:33,028 INFO L130 BoogieDeclarations]: Found specification of procedure __mutex_init [2023-04-03 04:26:33,028 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_trylock [2023-04-03 04:26:33,028 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_trylock_4 [2023-04-03 04:26:33,028 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2023-04-03 04:26:33,028 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_2 [2023-04-03 04:26:33,028 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_5 [2023-04-03 04:26:33,028 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_7 [2023-04-03 04:26:33,028 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_9 [2023-04-03 04:26:33,028 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_11 [2023-04-03 04:26:33,028 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_13 [2023-04-03 04:26:33,028 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_15 [2023-04-03 04:26:33,028 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_17 [2023-04-03 04:26:33,028 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_19 [2023-04-03 04:26:33,028 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_21 [2023-04-03 04:26:33,029 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_23 [2023-04-03 04:26:33,029 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock [2023-04-03 04:26:33,029 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_1 [2023-04-03 04:26:33,029 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_3 [2023-04-03 04:26:33,029 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_6 [2023-04-03 04:26:33,029 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_8 [2023-04-03 04:26:33,029 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_10 [2023-04-03 04:26:33,029 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_12 [2023-04-03 04:26:33,029 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_14 [2023-04-03 04:26:33,029 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_16 [2023-04-03 04:26:33,029 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_18 [2023-04-03 04:26:33,029 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_20 [2023-04-03 04:26:33,029 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_22 [2023-04-03 04:26:33,029 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_cred_guard_mutex_of_signal_struct [2023-04-03 04:26:33,029 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_cred_guard_mutex_of_signal_struct [2023-04-03 04:26:33,029 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_lock [2023-04-03 04:26:33,029 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_lock [2023-04-03 04:26:33,029 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_mutex_of_device [2023-04-03 04:26:33,029 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_trylock_mutex_of_device [2023-04-03 04:26:33,029 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_mutex_of_device [2023-04-03 04:26:33,029 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_update_lock_of_amc6821_data [2023-04-03 04:26:33,029 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_update_lock_of_amc6821_data [2023-04-03 04:26:33,030 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2023-04-03 04:26:33,030 INFO L130 BoogieDeclarations]: Found specification of procedure sysfs_create_group [2023-04-03 04:26:33,030 INFO L130 BoogieDeclarations]: Found specification of procedure sysfs_remove_group [2023-04-03 04:26:33,030 INFO L130 BoogieDeclarations]: Found specification of procedure devm_kzalloc [2023-04-03 04:26:33,030 INFO L130 BoogieDeclarations]: Found specification of procedure dev_get_drvdata [2023-04-03 04:26:33,030 INFO L130 BoogieDeclarations]: Found specification of procedure dev_set_drvdata [2023-04-03 04:26:33,030 INFO L130 BoogieDeclarations]: Found specification of procedure dev_err [2023-04-03 04:26:33,030 INFO L130 BoogieDeclarations]: Found specification of procedure _dev_info [2023-04-03 04:26:33,030 INFO L130 BoogieDeclarations]: Found specification of procedure i2c_smbus_read_byte_data [2023-04-03 04:26:33,030 INFO L130 BoogieDeclarations]: Found specification of procedure i2c_smbus_write_byte_data [2023-04-03 04:26:33,030 INFO L130 BoogieDeclarations]: Found specification of procedure i2c_get_clientdata [2023-04-03 04:26:33,030 INFO L130 BoogieDeclarations]: Found specification of procedure i2c_set_clientdata [2023-04-03 04:26:33,030 INFO L130 BoogieDeclarations]: Found specification of procedure i2c_register_driver [2023-04-03 04:26:33,030 INFO L130 BoogieDeclarations]: Found specification of procedure i2c_del_driver [2023-04-03 04:26:33,030 INFO L130 BoogieDeclarations]: Found specification of procedure i2c_get_functionality [2023-04-03 04:26:33,030 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~~u32~0 [2023-04-03 04:26:33,030 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-04-03 04:26:33,031 INFO L130 BoogieDeclarations]: Found specification of procedure i2c_check_functionality [2023-04-03 04:26:33,031 INFO L130 BoogieDeclarations]: Found specification of procedure hwmon_device_register [2023-04-03 04:26:33,032 INFO L130 BoogieDeclarations]: Found specification of procedure hwmon_device_unregister [2023-04-03 04:26:33,032 INFO L130 BoogieDeclarations]: Found specification of procedure SENSORS_LIMIT [2023-04-03 04:26:33,032 INFO L130 BoogieDeclarations]: Found specification of procedure amc6821_probe [2023-04-03 04:26:33,032 INFO L130 BoogieDeclarations]: Found specification of procedure amc6821_detect [2023-04-03 04:26:33,032 INFO L130 BoogieDeclarations]: Found specification of procedure amc6821_init_client [2023-04-03 04:26:33,032 INFO L130 BoogieDeclarations]: Found specification of procedure amc6821_remove [2023-04-03 04:26:33,032 INFO L130 BoogieDeclarations]: Found specification of procedure amc6821_update_device [2023-04-03 04:26:33,032 INFO L130 BoogieDeclarations]: Found specification of procedure get_temp [2023-04-03 04:26:33,032 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-04-03 04:26:33,032 INFO L130 BoogieDeclarations]: Found specification of procedure set_temp [2023-04-03 04:26:33,032 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-04-03 04:26:33,032 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-04-03 04:26:33,032 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-04-03 04:26:33,032 INFO L130 BoogieDeclarations]: Found specification of procedure get_temp_alarm [2023-04-03 04:26:33,032 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-04-03 04:26:33,032 INFO L130 BoogieDeclarations]: Found specification of procedure get_temp2_fault [2023-04-03 04:26:33,032 INFO L130 BoogieDeclarations]: Found specification of procedure get_pwm1 [2023-04-03 04:26:33,032 INFO L130 BoogieDeclarations]: Found specification of procedure set_pwm1 [2023-04-03 04:26:33,032 INFO L130 BoogieDeclarations]: Found specification of procedure get_pwm1_enable [2023-04-03 04:26:33,033 INFO L130 BoogieDeclarations]: Found specification of procedure set_pwm1_enable [2023-04-03 04:26:33,033 INFO L130 BoogieDeclarations]: Found specification of procedure get_pwm1_auto_channels_temp [2023-04-03 04:26:33,033 INFO L130 BoogieDeclarations]: Found specification of procedure get_temp_auto_point_temp [2023-04-03 04:26:33,033 INFO L130 BoogieDeclarations]: Found specification of procedure get_pwm1_auto_point_pwm [2023-04-03 04:26:33,033 INFO L130 BoogieDeclarations]: Found specification of procedure set_slope_register [2023-04-03 04:26:33,033 INFO L130 BoogieDeclarations]: Found specification of procedure set_temp_auto_point_temp [2023-04-03 04:26:33,033 INFO L130 BoogieDeclarations]: Found specification of procedure set_pwm1_auto_point_pwm [2023-04-03 04:26:33,033 INFO L130 BoogieDeclarations]: Found specification of procedure get_fan [2023-04-03 04:26:33,033 INFO L130 BoogieDeclarations]: Found specification of procedure get_fan1_fault [2023-04-03 04:26:33,033 INFO L130 BoogieDeclarations]: Found specification of procedure set_fan [2023-04-03 04:26:33,033 INFO L130 BoogieDeclarations]: Found specification of procedure get_fan1_div [2023-04-03 04:26:33,033 INFO L130 BoogieDeclarations]: Found specification of procedure set_fan1_div [2023-04-03 04:26:33,033 INFO L130 BoogieDeclarations]: Found specification of procedure amc6821_driver_init [2023-04-03 04:26:33,033 INFO L130 BoogieDeclarations]: Found specification of procedure amc6821_driver_exit [2023-04-03 04:26:33,033 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize [2023-04-03 04:26:33,033 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2023-04-03 04:26:33,033 INFO L130 BoogieDeclarations]: Found specification of procedure main [2023-04-03 04:26:33,033 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2023-04-03 04:26:33,033 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_trap [2023-04-03 04:26:33,033 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_interruptible_cred_guard_mutex_of_signal_struct [2023-04-03 04:26:33,033 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_killable_cred_guard_mutex_of_signal_struct [2023-04-03 04:26:33,033 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_trylock_cred_guard_mutex_of_signal_struct [2023-04-03 04:26:33,034 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_dec_and_mutex_lock_cred_guard_mutex_of_signal_struct [2023-04-03 04:26:33,034 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_is_locked_cred_guard_mutex_of_signal_struct [2023-04-03 04:26:33,034 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_interruptible_lock [2023-04-03 04:26:33,034 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_killable_lock [2023-04-03 04:26:33,034 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_trylock_lock [2023-04-03 04:26:33,034 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_dec_and_mutex_lock_lock [2023-04-03 04:26:33,034 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_is_locked_lock [2023-04-03 04:26:33,034 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_interruptible_mutex_of_device [2023-04-03 04:26:33,034 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_killable_mutex_of_device [2023-04-03 04:26:33,034 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_dec_and_mutex_lock_mutex_of_device [2023-04-03 04:26:33,034 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_is_locked_mutex_of_device [2023-04-03 04:26:33,034 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_interruptible_update_lock_of_amc6821_data [2023-04-03 04:26:33,034 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_killable_update_lock_of_amc6821_data [2023-04-03 04:26:33,034 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_trylock_update_lock_of_amc6821_data [2023-04-03 04:26:33,034 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_dec_and_mutex_lock_update_lock_of_amc6821_data [2023-04-03 04:26:33,034 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_is_locked_update_lock_of_amc6821_data [2023-04-03 04:26:33,034 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_bool [2023-04-03 04:26:33,034 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2023-04-03 04:26:33,034 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-04-03 04:26:33,035 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2023-04-03 04:26:33,037 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-04-03 04:26:33,037 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_ulong [2023-04-03 04:26:33,038 INFO L130 BoogieDeclarations]: Found specification of procedure free [2023-04-03 04:26:33,038 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2023-04-03 04:26:33,038 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2023-04-03 04:26:33,038 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-04-03 04:26:33,038 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2023-04-03 04:26:33,038 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-04-03 04:26:33,592 INFO L236 CfgBuilder]: Building ICFG [2023-04-03 04:26:33,595 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-04-03 04:26:36,022 INFO L277 CfgBuilder]: Performing block encoding [2023-04-03 04:26:36,643 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-04-03 04:26:36,643 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-04-03 04:26:36,647 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.04 04:26:36 BoogieIcfgContainer [2023-04-03 04:26:36,647 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-04-03 04:26:36,650 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-04-03 04:26:36,651 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-04-03 04:26:36,653 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-04-03 04:26:36,653 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.04 04:26:31" (1/3) ... [2023-04-03 04:26:36,654 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@23cba494 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.04 04:26:36, skipping insertion in model container [2023-04-03 04:26:36,654 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.04 04:26:32" (2/3) ... [2023-04-03 04:26:36,654 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@23cba494 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.04 04:26:36, skipping insertion in model container [2023-04-03 04:26:36,654 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.04 04:26:36" (3/3) ... [2023-04-03 04:26:36,655 INFO L112 eAbstractionObserver]: Analyzing ICFG 32_7a_cilled_linux-3.8-rc1-drivers--hwmon--amc6821.ko-main.cil.out.i [2023-04-03 04:26:36,669 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-04-03 04:26:36,670 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-04-03 04:26:36,742 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-04-03 04:26:36,747 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;@e8c635d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-04-03 04:26:36,748 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-04-03 04:26:36,755 INFO L276 IsEmpty]: Start isEmpty. Operand has 989 states, 620 states have (on average 1.414516129032258) internal successors, (877), 627 states have internal predecessors, (877), 257 states have call successors, (257), 80 states have call predecessors, (257), 80 states have return successors, (257), 257 states have call predecessors, (257), 257 states have call successors, (257) [2023-04-03 04:26:36,768 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2023-04-03 04:26:36,768 INFO L187 NwaCegarLoop]: Found error trace [2023-04-03 04:26:36,769 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-03 04:26:36,769 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-03 04:26:36,772 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-03 04:26:36,773 INFO L85 PathProgramCache]: Analyzing trace with hash 291255475, now seen corresponding path program 1 times [2023-04-03 04:26:36,778 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-03 04:26:36,779 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1566852999] [2023-04-03 04:26:36,779 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-03 04:26:36,779 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-03 04:26:37,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-03 04:26:37,365 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-04-03 04:26:37,365 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-03 04:26:37,365 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1566852999] [2023-04-03 04:26:37,366 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1566852999] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-03 04:26:37,366 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-03 04:26:37,366 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-04-03 04:26:37,367 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1204760502] [2023-04-03 04:26:37,368 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-03 04:26:37,373 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-04-03 04:26:37,373 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-03 04:26:37,391 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-04-03 04:26:37,392 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-04-03 04:26:37,395 INFO L87 Difference]: Start difference. First operand has 989 states, 620 states have (on average 1.414516129032258) internal successors, (877), 627 states have internal predecessors, (877), 257 states have call successors, (257), 80 states have call predecessors, (257), 80 states have return successors, (257), 257 states have call predecessors, (257), 257 states have call successors, (257) Second operand has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 3 states have internal predecessors, (29), 2 states have call successors, (11), 2 states have call predecessors, (11), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-04-03 04:26:38,122 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-03 04:26:38,123 INFO L93 Difference]: Finished difference Result 2740 states and 4199 transitions. [2023-04-03 04:26:38,124 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-04-03 04:26:38,125 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 3 states have internal predecessors, (29), 2 states have call successors, (11), 2 states have call predecessors, (11), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 45 [2023-04-03 04:26:38,125 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-03 04:26:38,140 INFO L225 Difference]: With dead ends: 2740 [2023-04-03 04:26:38,140 INFO L226 Difference]: Without dead ends: 1814 [2023-04-03 04:26:38,149 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-04-03 04:26:38,151 INFO L413 NwaCegarLoop]: 1221 mSDtfsCounter, 1313 mSDsluCounter, 1208 mSDsCounter, 0 mSdLazyCounter, 246 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1313 SdHoareTripleChecker+Valid, 2429 SdHoareTripleChecker+Invalid, 248 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 246 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-04-03 04:26:38,152 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1313 Valid, 2429 Invalid, 248 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 246 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-04-03 04:26:38,167 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1814 states. [2023-04-03 04:26:38,394 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1814 to 1786. [2023-04-03 04:26:38,397 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1786 states, 1151 states have (on average 1.4352736750651607) internal successors, (1652), 1156 states have internal predecessors, (1652), 486 states have call successors, (486), 151 states have call predecessors, (486), 148 states have return successors, (478), 478 states have call predecessors, (478), 478 states have call successors, (478) [2023-04-03 04:26:38,403 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1786 states to 1786 states and 2616 transitions. [2023-04-03 04:26:38,405 INFO L78 Accepts]: Start accepts. Automaton has 1786 states and 2616 transitions. Word has length 45 [2023-04-03 04:26:38,406 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-03 04:26:38,406 INFO L495 AbstractCegarLoop]: Abstraction has 1786 states and 2616 transitions. [2023-04-03 04:26:38,406 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 3 states have internal predecessors, (29), 2 states have call successors, (11), 2 states have call predecessors, (11), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-04-03 04:26:38,406 INFO L276 IsEmpty]: Start isEmpty. Operand 1786 states and 2616 transitions. [2023-04-03 04:26:38,413 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2023-04-03 04:26:38,413 INFO L187 NwaCegarLoop]: Found error trace [2023-04-03 04:26:38,413 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-03 04:26:38,413 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-04-03 04:26:38,414 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-03 04:26:38,414 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-03 04:26:38,414 INFO L85 PathProgramCache]: Analyzing trace with hash 855484018, now seen corresponding path program 1 times [2023-04-03 04:26:38,414 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-03 04:26:38,415 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1733078753] [2023-04-03 04:26:38,415 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-03 04:26:38,415 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-03 04:26:38,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-03 04:26:38,738 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-04-03 04:26:38,738 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-03 04:26:38,738 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1733078753] [2023-04-03 04:26:38,738 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1733078753] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-03 04:26:38,738 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-03 04:26:38,738 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-04-03 04:26:38,739 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [153224769] [2023-04-03 04:26:38,739 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-03 04:26:38,740 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-04-03 04:26:38,740 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-03 04:26:38,740 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-04-03 04:26:38,741 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-04-03 04:26:38,741 INFO L87 Difference]: Start difference. First operand 1786 states and 2616 transitions. Second operand has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 3 states have internal predecessors, (28), 2 states have call successors, (11), 2 states have call predecessors, (11), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-04-03 04:26:39,277 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-03 04:26:39,277 INFO L93 Difference]: Finished difference Result 5331 states and 7814 transitions. [2023-04-03 04:26:39,277 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-04-03 04:26:39,277 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 3 states have internal predecessors, (28), 2 states have call successors, (11), 2 states have call predecessors, (11), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 44 [2023-04-03 04:26:39,277 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-03 04:26:39,294 INFO L225 Difference]: With dead ends: 5331 [2023-04-03 04:26:39,294 INFO L226 Difference]: Without dead ends: 3554 [2023-04-03 04:26:39,302 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-04-03 04:26:39,303 INFO L413 NwaCegarLoop]: 1230 mSDtfsCounter, 1315 mSDsluCounter, 1206 mSDsCounter, 0 mSdLazyCounter, 242 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1315 SdHoareTripleChecker+Valid, 2436 SdHoareTripleChecker+Invalid, 244 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 242 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-04-03 04:26:39,303 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1315 Valid, 2436 Invalid, 244 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 242 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-04-03 04:26:39,306 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3554 states. [2023-04-03 04:26:39,413 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3554 to 3526. [2023-04-03 04:26:39,418 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3526 states, 2279 states have (on average 1.4352786309784993) internal successors, (3271), 2284 states have internal predecessors, (3271), 956 states have call successors, (956), 293 states have call predecessors, (956), 290 states have return successors, (948), 948 states have call predecessors, (948), 948 states have call successors, (948) [2023-04-03 04:26:39,431 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3526 states to 3526 states and 5175 transitions. [2023-04-03 04:26:39,433 INFO L78 Accepts]: Start accepts. Automaton has 3526 states and 5175 transitions. Word has length 44 [2023-04-03 04:26:39,434 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-03 04:26:39,434 INFO L495 AbstractCegarLoop]: Abstraction has 3526 states and 5175 transitions. [2023-04-03 04:26:39,434 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 3 states have internal predecessors, (28), 2 states have call successors, (11), 2 states have call predecessors, (11), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-04-03 04:26:39,434 INFO L276 IsEmpty]: Start isEmpty. Operand 3526 states and 5175 transitions. [2023-04-03 04:26:39,437 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2023-04-03 04:26:39,437 INFO L187 NwaCegarLoop]: Found error trace [2023-04-03 04:26:39,437 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-03 04:26:39,437 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-04-03 04:26:39,438 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-03 04:26:39,438 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-03 04:26:39,438 INFO L85 PathProgramCache]: Analyzing trace with hash -827350434, now seen corresponding path program 1 times [2023-04-03 04:26:39,438 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-03 04:26:39,438 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [52180921] [2023-04-03 04:26:39,438 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-03 04:26:39,438 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-03 04:26:39,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-03 04:26:39,730 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-04-03 04:26:39,731 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-03 04:26:39,731 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [52180921] [2023-04-03 04:26:39,731 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [52180921] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-03 04:26:39,731 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-03 04:26:39,731 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-04-03 04:26:39,731 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [669305799] [2023-04-03 04:26:39,732 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-03 04:26:39,732 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-04-03 04:26:39,732 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-03 04:26:39,733 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-04-03 04:26:39,735 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-04-03 04:26:39,736 INFO L87 Difference]: Start difference. First operand 3526 states and 5175 transitions. Second operand has 3 states, 3 states have (on average 10.333333333333334) internal successors, (31), 3 states have internal predecessors, (31), 2 states have call successors, (11), 2 states have call predecessors, (11), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-04-03 04:26:40,329 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-03 04:26:40,329 INFO L93 Difference]: Finished difference Result 10527 states and 15449 transitions. [2023-04-03 04:26:40,329 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-04-03 04:26:40,329 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 10.333333333333334) internal successors, (31), 3 states have internal predecessors, (31), 2 states have call successors, (11), 2 states have call predecessors, (11), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 47 [2023-04-03 04:26:40,329 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-03 04:26:40,360 INFO L225 Difference]: With dead ends: 10527 [2023-04-03 04:26:40,360 INFO L226 Difference]: Without dead ends: 7010 [2023-04-03 04:26:40,375 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-04-03 04:26:40,376 INFO L413 NwaCegarLoop]: 1237 mSDtfsCounter, 1306 mSDsluCounter, 1203 mSDsCounter, 0 mSdLazyCounter, 246 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1306 SdHoareTripleChecker+Valid, 2440 SdHoareTripleChecker+Invalid, 248 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 246 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-04-03 04:26:40,377 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1306 Valid, 2440 Invalid, 248 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 246 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-04-03 04:26:40,383 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7010 states. [2023-04-03 04:26:40,628 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7010 to 6982. [2023-04-03 04:26:40,639 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6982 states, 4517 states have (on average 1.4339163161390303) internal successors, (6477), 4522 states have internal predecessors, (6477), 1890 states have call successors, (1890), 577 states have call predecessors, (1890), 574 states have return successors, (1882), 1882 states have call predecessors, (1882), 1882 states have call successors, (1882) [2023-04-03 04:26:40,664 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6982 states to 6982 states and 10249 transitions. [2023-04-03 04:26:40,667 INFO L78 Accepts]: Start accepts. Automaton has 6982 states and 10249 transitions. Word has length 47 [2023-04-03 04:26:40,667 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-03 04:26:40,667 INFO L495 AbstractCegarLoop]: Abstraction has 6982 states and 10249 transitions. [2023-04-03 04:26:40,667 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 10.333333333333334) internal successors, (31), 3 states have internal predecessors, (31), 2 states have call successors, (11), 2 states have call predecessors, (11), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-04-03 04:26:40,667 INFO L276 IsEmpty]: Start isEmpty. Operand 6982 states and 10249 transitions. [2023-04-03 04:26:40,668 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2023-04-03 04:26:40,668 INFO L187 NwaCegarLoop]: Found error trace [2023-04-03 04:26:40,668 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-03 04:26:40,668 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-04-03 04:26:40,669 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-03 04:26:40,669 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-03 04:26:40,669 INFO L85 PathProgramCache]: Analyzing trace with hash 1157587769, now seen corresponding path program 1 times [2023-04-03 04:26:40,669 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-03 04:26:40,669 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1070183548] [2023-04-03 04:26:40,669 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-03 04:26:40,669 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-03 04:26:40,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-03 04:26:40,867 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-04-03 04:26:40,867 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-03 04:26:40,867 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1070183548] [2023-04-03 04:26:40,867 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1070183548] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-03 04:26:40,867 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-03 04:26:40,867 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-04-03 04:26:40,868 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [822266977] [2023-04-03 04:26:40,868 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-03 04:26:40,868 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-04-03 04:26:40,868 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-03 04:26:40,868 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-04-03 04:26:40,868 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-04-03 04:26:40,869 INFO L87 Difference]: Start difference. First operand 6982 states and 10249 transitions. Second operand has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 3 states have internal predecessors, (26), 2 states have call successors, (11), 2 states have call predecessors, (11), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-04-03 04:26:41,775 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-03 04:26:41,775 INFO L93 Difference]: Finished difference Result 20863 states and 30639 transitions. [2023-04-03 04:26:41,775 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-04-03 04:26:41,776 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 3 states have internal predecessors, (26), 2 states have call successors, (11), 2 states have call predecessors, (11), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 42 [2023-04-03 04:26:41,776 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-03 04:26:41,850 INFO L225 Difference]: With dead ends: 20863 [2023-04-03 04:26:41,850 INFO L226 Difference]: Without dead ends: 13890 [2023-04-03 04:26:41,899 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-04-03 04:26:41,900 INFO L413 NwaCegarLoop]: 1251 mSDtfsCounter, 1313 mSDsluCounter, 1206 mSDsCounter, 0 mSdLazyCounter, 244 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1313 SdHoareTripleChecker+Valid, 2457 SdHoareTripleChecker+Invalid, 246 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 244 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-04-03 04:26:41,900 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1313 Valid, 2457 Invalid, 246 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 244 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-04-03 04:26:41,913 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13890 states. [2023-04-03 04:26:42,359 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13890 to 13862. [2023-04-03 04:26:42,391 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13862 states, 8977 states have (on average 1.433552411718837) internal successors, (12869), 8982 states have internal predecessors, (12869), 3750 states have call successors, (3750), 1137 states have call predecessors, (3750), 1134 states have return successors, (3742), 3742 states have call predecessors, (3742), 3742 states have call successors, (3742) [2023-04-03 04:26:42,533 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13862 states to 13862 states and 20361 transitions. [2023-04-03 04:26:42,537 INFO L78 Accepts]: Start accepts. Automaton has 13862 states and 20361 transitions. Word has length 42 [2023-04-03 04:26:42,537 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-03 04:26:42,537 INFO L495 AbstractCegarLoop]: Abstraction has 13862 states and 20361 transitions. [2023-04-03 04:26:42,538 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 3 states have internal predecessors, (26), 2 states have call successors, (11), 2 states have call predecessors, (11), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-04-03 04:26:42,538 INFO L276 IsEmpty]: Start isEmpty. Operand 13862 states and 20361 transitions. [2023-04-03 04:26:42,539 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2023-04-03 04:26:42,539 INFO L187 NwaCegarLoop]: Found error trace [2023-04-03 04:26:42,539 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-03 04:26:42,539 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-04-03 04:26:42,539 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-03 04:26:42,539 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-03 04:26:42,539 INFO L85 PathProgramCache]: Analyzing trace with hash 1377533880, now seen corresponding path program 1 times [2023-04-03 04:26:42,540 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-03 04:26:42,540 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1079829020] [2023-04-03 04:26:42,540 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-03 04:26:42,540 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-03 04:26:42,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-03 04:26:42,841 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-04-03 04:26:42,841 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-03 04:26:42,842 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1079829020] [2023-04-03 04:26:42,842 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1079829020] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-03 04:26:42,842 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-03 04:26:42,843 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-04-03 04:26:42,843 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [445922550] [2023-04-03 04:26:42,843 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-03 04:26:42,843 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-04-03 04:26:42,843 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-03 04:26:42,843 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-04-03 04:26:42,844 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-04-03 04:26:42,844 INFO L87 Difference]: Start difference. First operand 13862 states and 20361 transitions. Second operand has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 3 states have internal predecessors, (25), 2 states have call successors, (11), 2 states have call predecessors, (11), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-04-03 04:26:43,892 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-03 04:26:43,892 INFO L93 Difference]: Finished difference Result 41439 states and 60887 transitions. [2023-04-03 04:26:43,895 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-04-03 04:26:43,896 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 3 states have internal predecessors, (25), 2 states have call successors, (11), 2 states have call predecessors, (11), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 41 [2023-04-03 04:26:43,897 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-03 04:26:44,038 INFO L225 Difference]: With dead ends: 41439 [2023-04-03 04:26:44,038 INFO L226 Difference]: Without dead ends: 27586 [2023-04-03 04:26:44,091 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-04-03 04:26:44,091 INFO L413 NwaCegarLoop]: 1261 mSDtfsCounter, 1314 mSDsluCounter, 1206 mSDsCounter, 0 mSdLazyCounter, 246 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1314 SdHoareTripleChecker+Valid, 2467 SdHoareTripleChecker+Invalid, 248 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 246 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-04-03 04:26:44,092 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1314 Valid, 2467 Invalid, 248 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 246 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-04-03 04:26:44,114 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27586 states. [2023-04-03 04:26:45,035 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27586 to 27558. [2023-04-03 04:26:45,073 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27558 states, 17857 states have (on average 1.4329954639637117) internal successors, (25589), 17862 states have internal predecessors, (25589), 7454 states have call successors, (7454), 2249 states have call predecessors, (7454), 2246 states have return successors, (7446), 7446 states have call predecessors, (7446), 7446 states have call successors, (7446) [2023-04-03 04:26:45,180 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27558 states to 27558 states and 40489 transitions. [2023-04-03 04:26:45,187 INFO L78 Accepts]: Start accepts. Automaton has 27558 states and 40489 transitions. Word has length 41 [2023-04-03 04:26:45,187 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-03 04:26:45,188 INFO L495 AbstractCegarLoop]: Abstraction has 27558 states and 40489 transitions. [2023-04-03 04:26:45,188 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 3 states have internal predecessors, (25), 2 states have call successors, (11), 2 states have call predecessors, (11), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-04-03 04:26:45,188 INFO L276 IsEmpty]: Start isEmpty. Operand 27558 states and 40489 transitions. [2023-04-03 04:26:45,190 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2023-04-03 04:26:45,190 INFO L187 NwaCegarLoop]: Found error trace [2023-04-03 04:26:45,190 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-03 04:26:45,190 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-04-03 04:26:45,190 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-03 04:26:45,191 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-03 04:26:45,191 INFO L85 PathProgramCache]: Analyzing trace with hash 1232342257, now seen corresponding path program 1 times [2023-04-03 04:26:45,191 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-03 04:26:45,191 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1393250162] [2023-04-03 04:26:45,191 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-03 04:26:45,191 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-03 04:26:45,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-03 04:26:45,494 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-04-03 04:26:45,494 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-03 04:26:45,495 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1393250162] [2023-04-03 04:26:45,495 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1393250162] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-03 04:26:45,495 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-03 04:26:45,495 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-04-03 04:26:45,495 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [82380338] [2023-04-03 04:26:45,495 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-03 04:26:45,496 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-04-03 04:26:45,496 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-03 04:26:45,496 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-04-03 04:26:45,496 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-04-03 04:26:45,496 INFO L87 Difference]: Start difference. First operand 27558 states and 40489 transitions. Second operand has 3 states, 3 states have (on average 8.0) internal successors, (24), 3 states have internal predecessors, (24), 2 states have call successors, (11), 2 states have call predecessors, (11), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-04-03 04:26:47,217 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-03 04:26:47,217 INFO L93 Difference]: Finished difference Result 82527 states and 121223 transitions. [2023-04-03 04:26:47,217 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-04-03 04:26:47,217 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 8.0) internal successors, (24), 3 states have internal predecessors, (24), 2 states have call successors, (11), 2 states have call predecessors, (11), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 40 [2023-04-03 04:26:47,218 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-03 04:26:47,536 INFO L225 Difference]: With dead ends: 82527 [2023-04-03 04:26:47,536 INFO L226 Difference]: Without dead ends: 54978 [2023-04-03 04:26:47,633 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-04-03 04:26:47,635 INFO L413 NwaCegarLoop]: 1271 mSDtfsCounter, 1319 mSDsluCounter, 1206 mSDsCounter, 0 mSdLazyCounter, 248 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1319 SdHoareTripleChecker+Valid, 2477 SdHoareTripleChecker+Invalid, 250 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 248 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-04-03 04:26:47,635 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1319 Valid, 2477 Invalid, 250 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 248 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-04-03 04:26:47,688 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54978 states. [2023-04-03 04:26:49,597 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54978 to 54950. [2023-04-03 04:26:49,659 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 54950 states, 35601 states have (on average 1.4315609112103593) internal successors, (50965), 35606 states have internal predecessors, (50965), 14862 states have call successors, (14862), 4489 states have call predecessors, (14862), 4486 states have return successors, (14854), 14854 states have call predecessors, (14854), 14854 states have call successors, (14854) [2023-04-03 04:26:49,843 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54950 states to 54950 states and 80681 transitions. [2023-04-03 04:26:49,859 INFO L78 Accepts]: Start accepts. Automaton has 54950 states and 80681 transitions. Word has length 40 [2023-04-03 04:26:49,860 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-03 04:26:49,860 INFO L495 AbstractCegarLoop]: Abstraction has 54950 states and 80681 transitions. [2023-04-03 04:26:49,860 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.0) internal successors, (24), 3 states have internal predecessors, (24), 2 states have call successors, (11), 2 states have call predecessors, (11), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-04-03 04:26:49,860 INFO L276 IsEmpty]: Start isEmpty. Operand 54950 states and 80681 transitions. [2023-04-03 04:26:49,861 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2023-04-03 04:26:49,861 INFO L187 NwaCegarLoop]: Found error trace [2023-04-03 04:26:49,862 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-03 04:26:49,862 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-04-03 04:26:49,862 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-03 04:26:49,862 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-03 04:26:49,862 INFO L85 PathProgramCache]: Analyzing trace with hash 444325381, now seen corresponding path program 1 times [2023-04-03 04:26:49,862 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-03 04:26:49,862 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2037918107] [2023-04-03 04:26:49,862 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-03 04:26:49,863 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-03 04:26:50,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-03 04:26:50,326 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-04-03 04:26:50,326 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-03 04:26:50,326 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2037918107] [2023-04-03 04:26:50,326 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2037918107] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-03 04:26:50,326 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-03 04:26:50,326 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-04-03 04:26:50,327 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1144799091] [2023-04-03 04:26:50,327 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-03 04:26:50,327 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-04-03 04:26:50,327 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-03 04:26:50,327 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-04-03 04:26:50,327 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-04-03 04:26:50,328 INFO L87 Difference]: Start difference. First operand 54950 states and 80681 transitions. Second operand has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 2 states have call successors, (11), 2 states have call predecessors, (11), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-04-03 04:26:53,775 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-03 04:26:53,776 INFO L93 Difference]: Finished difference Result 164319 states and 241127 transitions. [2023-04-03 04:26:53,776 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-04-03 04:26:53,776 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 2 states have call successors, (11), 2 states have call predecessors, (11), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 49 [2023-04-03 04:26:53,777 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-03 04:26:54,604 INFO L225 Difference]: With dead ends: 164319 [2023-04-03 04:26:54,605 INFO L226 Difference]: Without dead ends: 109378 [2023-04-03 04:26:54,827 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-04-03 04:26:54,828 INFO L413 NwaCegarLoop]: 1278 mSDtfsCounter, 1304 mSDsluCounter, 1203 mSDsCounter, 0 mSdLazyCounter, 252 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1304 SdHoareTripleChecker+Valid, 2481 SdHoareTripleChecker+Invalid, 254 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 252 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-04-03 04:26:54,828 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1304 Valid, 2481 Invalid, 254 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 252 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-04-03 04:26:54,910 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 109378 states. [2023-04-03 04:26:58,399 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 109378 to 109350. [2023-04-03 04:26:58,694 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 109350 states, 70801 states have (on average 1.4294289628677561) internal successors, (101205), 70806 states have internal predecessors, (101205), 29582 states have call successors, (29582), 8969 states have call predecessors, (29582), 8966 states have return successors, (29574), 29574 states have call predecessors, (29574), 29574 states have call successors, (29574) [2023-04-03 04:26:59,285 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 109350 states to 109350 states and 160361 transitions. [2023-04-03 04:26:59,323 INFO L78 Accepts]: Start accepts. Automaton has 109350 states and 160361 transitions. Word has length 49 [2023-04-03 04:26:59,323 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-03 04:26:59,323 INFO L495 AbstractCegarLoop]: Abstraction has 109350 states and 160361 transitions. [2023-04-03 04:26:59,324 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 2 states have call successors, (11), 2 states have call predecessors, (11), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-04-03 04:26:59,324 INFO L276 IsEmpty]: Start isEmpty. Operand 109350 states and 160361 transitions. [2023-04-03 04:26:59,325 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2023-04-03 04:26:59,325 INFO L187 NwaCegarLoop]: Found error trace [2023-04-03 04:26:59,325 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-03 04:26:59,326 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-04-03 04:26:59,326 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-03 04:26:59,326 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-03 04:26:59,326 INFO L85 PathProgramCache]: Analyzing trace with hash -1471088758, now seen corresponding path program 1 times [2023-04-03 04:26:59,326 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-03 04:26:59,326 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1146002397] [2023-04-03 04:26:59,326 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-03 04:26:59,327 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-03 04:26:59,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-03 04:26:59,763 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-04-03 04:26:59,764 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-03 04:26:59,764 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1146002397] [2023-04-03 04:26:59,764 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1146002397] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-03 04:26:59,764 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-03 04:26:59,764 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-04-03 04:26:59,764 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1362915027] [2023-04-03 04:26:59,764 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-03 04:26:59,764 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-04-03 04:26:59,764 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-03 04:26:59,765 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-04-03 04:26:59,765 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-04-03 04:26:59,765 INFO L87 Difference]: Start difference. First operand 109350 states and 160361 transitions. Second operand has 3 states, 3 states have (on average 9.0) internal successors, (27), 3 states have internal predecessors, (27), 2 states have call successors, (11), 2 states have call predecessors, (11), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-04-03 04:27:06,372 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-03 04:27:06,373 INFO L93 Difference]: Finished difference Result 327519 states and 480167 transitions. [2023-04-03 04:27:06,373 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-04-03 04:27:06,373 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 9.0) internal successors, (27), 3 states have internal predecessors, (27), 2 states have call successors, (11), 2 states have call predecessors, (11), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 43 [2023-04-03 04:27:06,373 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-03 04:27:07,853 INFO L225 Difference]: With dead ends: 327519 [2023-04-03 04:27:07,853 INFO L226 Difference]: Without dead ends: 218178 [2023-04-03 04:27:08,220 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-04-03 04:27:08,221 INFO L413 NwaCegarLoop]: 1292 mSDtfsCounter, 1316 mSDsluCounter, 1206 mSDsCounter, 0 mSdLazyCounter, 250 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1316 SdHoareTripleChecker+Valid, 2498 SdHoareTripleChecker+Invalid, 252 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 250 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-04-03 04:27:08,221 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1316 Valid, 2498 Invalid, 252 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 250 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-04-03 04:27:08,385 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 218178 states. [2023-04-03 04:27:16,016 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 218178 to 218150. [2023-04-03 04:27:16,314 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 218150 states, 141201 states have (on average 1.4279006522616695) internal successors, (201621), 141206 states have internal predecessors, (201621), 59022 states have call successors, (59022), 17929 states have call predecessors, (59022), 17926 states have return successors, (59014), 59014 states have call predecessors, (59014), 59014 states have call successors, (59014) [2023-04-03 04:27:17,664 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 218150 states to 218150 states and 319657 transitions. [2023-04-03 04:27:17,735 INFO L78 Accepts]: Start accepts. Automaton has 218150 states and 319657 transitions. Word has length 43 [2023-04-03 04:27:17,735 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-03 04:27:17,735 INFO L495 AbstractCegarLoop]: Abstraction has 218150 states and 319657 transitions. [2023-04-03 04:27:17,736 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.0) internal successors, (27), 3 states have internal predecessors, (27), 2 states have call successors, (11), 2 states have call predecessors, (11), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-04-03 04:27:17,736 INFO L276 IsEmpty]: Start isEmpty. Operand 218150 states and 319657 transitions. [2023-04-03 04:27:17,737 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2023-04-03 04:27:17,737 INFO L187 NwaCegarLoop]: Found error trace [2023-04-03 04:27:17,737 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-03 04:27:17,737 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-04-03 04:27:17,737 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-03 04:27:17,737 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-03 04:27:17,738 INFO L85 PathProgramCache]: Analyzing trace with hash -1195721846, now seen corresponding path program 1 times [2023-04-03 04:27:17,738 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-03 04:27:17,738 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1801885975] [2023-04-03 04:27:17,738 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-03 04:27:17,738 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-03 04:27:17,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-03 04:27:17,932 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-04-03 04:27:17,932 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-03 04:27:17,932 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1801885975] [2023-04-03 04:27:17,932 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1801885975] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-03 04:27:17,932 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-03 04:27:17,932 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-04-03 04:27:17,933 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [591186735] [2023-04-03 04:27:17,933 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-03 04:27:17,933 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-04-03 04:27:17,933 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-03 04:27:17,934 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-04-03 04:27:17,934 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-04-03 04:27:17,934 INFO L87 Difference]: Start difference. First operand 218150 states and 319657 transitions. Second operand has 3 states, 3 states have (on average 11.333333333333334) internal successors, (34), 3 states have internal predecessors, (34), 2 states have call successors, (11), 2 states have call predecessors, (11), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-04-03 04:27:31,230 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-03 04:27:31,230 INFO L93 Difference]: Finished difference Result 652383 states and 955367 transitions. [2023-04-03 04:27:31,231 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-04-03 04:27:31,231 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 11.333333333333334) internal successors, (34), 3 states have internal predecessors, (34), 2 states have call successors, (11), 2 states have call predecessors, (11), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 50 [2023-04-03 04:27:31,231 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-03 04:27:34,023 INFO L225 Difference]: With dead ends: 652383 [2023-04-03 04:27:34,024 INFO L226 Difference]: Without dead ends: 434242 [2023-04-03 04:27:34,843 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-04-03 04:27:34,845 INFO L413 NwaCegarLoop]: 1299 mSDtfsCounter, 1303 mSDsluCounter, 1203 mSDsCounter, 0 mSdLazyCounter, 254 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1303 SdHoareTripleChecker+Valid, 2502 SdHoareTripleChecker+Invalid, 256 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 254 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-04-03 04:27:34,845 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1303 Valid, 2502 Invalid, 256 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 254 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-04-03 04:27:35,188 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 434242 states. [2023-04-03 04:27:52,559 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 434242 to 434214. [2023-04-03 04:27:53,549 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 434214 states, 280849 states have (on average 1.4256949463946818) internal successors, (400405), 280854 states have internal predecessors, (400405), 117518 states have call successors, (117518), 35849 states have call predecessors, (117518), 35846 states have return successors, (117510), 117510 states have call predecessors, (117510), 117510 states have call successors, (117510) [2023-04-03 04:27:57,364 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 434214 states to 434214 states and 635433 transitions. [2023-04-03 04:27:57,491 INFO L78 Accepts]: Start accepts. Automaton has 434214 states and 635433 transitions. Word has length 50 [2023-04-03 04:27:57,491 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-03 04:27:57,491 INFO L495 AbstractCegarLoop]: Abstraction has 434214 states and 635433 transitions. [2023-04-03 04:27:57,507 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.333333333333334) internal successors, (34), 3 states have internal predecessors, (34), 2 states have call successors, (11), 2 states have call predecessors, (11), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-04-03 04:27:57,507 INFO L276 IsEmpty]: Start isEmpty. Operand 434214 states and 635433 transitions. [2023-04-03 04:27:57,508 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2023-04-03 04:27:57,508 INFO L187 NwaCegarLoop]: Found error trace [2023-04-03 04:27:57,508 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-03 04:27:57,508 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-04-03 04:27:57,508 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-03 04:27:57,509 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-03 04:27:57,510 INFO L85 PathProgramCache]: Analyzing trace with hash -2092691383, now seen corresponding path program 1 times [2023-04-03 04:27:57,510 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-03 04:27:57,510 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1048982104] [2023-04-03 04:27:57,510 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-03 04:27:57,510 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-03 04:27:57,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-03 04:27:57,900 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-04-03 04:27:57,900 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-03 04:27:57,900 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1048982104] [2023-04-03 04:27:57,900 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1048982104] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-03 04:27:57,900 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-03 04:27:57,900 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-04-03 04:27:57,900 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1839467008] [2023-04-03 04:27:57,900 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-03 04:27:57,901 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-04-03 04:27:57,901 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-03 04:27:57,902 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-04-03 04:27:57,902 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-04-03 04:27:57,902 INFO L87 Difference]: Start difference. First operand 434214 states and 635433 transitions. Second operand has 3 states, 3 states have (on average 10.333333333333334) internal successors, (31), 3 states have internal predecessors, (31), 2 states have call successors, (11), 2 states have call predecessors, (11), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5)