/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/default/taipan/svcomp-Reach-32bit-Taipan_Default.epf -tc ../../../trunk/examples/toolchains/AutomizerC.xml --sifa.abstract.domain OctagonDomain -i ../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--hwmon--abituguru3.ko-entry_point.cil.out.i -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-f954360 [2023-04-03 05:38:20,086 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-04-03 05:38:20,088 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-04-03 05:38:20,120 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-04-03 05:38:20,120 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-04-03 05:38:20,122 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-04-03 05:38:20,125 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-04-03 05:38:20,129 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-04-03 05:38:20,130 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-04-03 05:38:20,134 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-04-03 05:38:20,135 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-04-03 05:38:20,136 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-04-03 05:38:20,137 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-04-03 05:38:20,139 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-04-03 05:38:20,141 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-04-03 05:38:20,142 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-04-03 05:38:20,143 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-04-03 05:38:20,144 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-04-03 05:38:20,145 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-04-03 05:38:20,149 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-04-03 05:38:20,150 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-04-03 05:38:20,151 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-04-03 05:38:20,152 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-04-03 05:38:20,153 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-04-03 05:38:20,158 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-04-03 05:38:20,158 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-04-03 05:38:20,158 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-04-03 05:38:20,159 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-04-03 05:38:20,159 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-04-03 05:38:20,160 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-04-03 05:38:20,160 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-04-03 05:38:20,160 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-04-03 05:38:20,162 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-04-03 05:38:20,162 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-04-03 05:38:20,162 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-04-03 05:38:20,163 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-04-03 05:38:20,163 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-04-03 05:38:20,163 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-04-03 05:38:20,163 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-04-03 05:38:20,164 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-04-03 05:38:20,164 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-04-03 05:38:20,165 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 05:38:20,188 INFO L113 SettingsManager]: Loading preferences was successful [2023-04-03 05:38:20,188 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-04-03 05:38:20,188 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-04-03 05:38:20,188 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-04-03 05:38:20,189 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-04-03 05:38:20,189 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-04-03 05:38:20,189 INFO L138 SettingsManager]: * User list type=DISABLED [2023-04-03 05:38:20,189 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-04-03 05:38:20,189 INFO L138 SettingsManager]: * Explicit value domain=true [2023-04-03 05:38:20,189 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-04-03 05:38:20,190 INFO L138 SettingsManager]: * Octagon Domain=false [2023-04-03 05:38:20,190 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2023-04-03 05:38:20,190 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-04-03 05:38:20,190 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-04-03 05:38:20,190 INFO L138 SettingsManager]: * Interval Domain=false [2023-04-03 05:38:20,191 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-04-03 05:38:20,191 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-04-03 05:38:20,191 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2023-04-03 05:38:20,191 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-04-03 05:38:20,191 INFO L138 SettingsManager]: * sizeof long=4 [2023-04-03 05:38:20,191 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-04-03 05:38:20,191 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-04-03 05:38:20,192 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-04-03 05:38:20,192 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-04-03 05:38:20,192 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-04-03 05:38:20,192 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-04-03 05:38:20,192 INFO L138 SettingsManager]: * sizeof long double=12 [2023-04-03 05:38:20,192 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-04-03 05:38:20,192 INFO L138 SettingsManager]: * Use constant arrays=true [2023-04-03 05:38:20,193 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-04-03 05:38:20,193 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-04-03 05:38:20,193 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-04-03 05:38:20,193 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-04-03 05:38:20,193 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-04-03 05:38:20,193 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2023-04-03 05:38:20,193 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-04-03 05:38:20,194 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-04-03 05:38:20,194 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-04-03 05:38:20,194 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-04-03 05:38:20,194 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-04-03 05:38:20,194 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-04-03 05:38:20,194 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Abstract Domain -> OctagonDomain [2023-04-03 05:38:20,387 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-04-03 05:38:20,403 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-04-03 05:38:20,404 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-04-03 05:38:20,405 INFO L271 PluginConnector]: Initializing CDTParser... [2023-04-03 05:38:20,406 INFO L275 PluginConnector]: CDTParser initialized [2023-04-03 05:38:20,406 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--hwmon--abituguru3.ko-entry_point.cil.out.i [2023-04-03 05:38:21,431 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-04-03 05:38:21,828 INFO L351 CDTParser]: Found 1 translation units. [2023-04-03 05:38:21,829 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--hwmon--abituguru3.ko-entry_point.cil.out.i [2023-04-03 05:38:21,856 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/595bab4cd/53d0bc7ec92c41f18e25044ec1697075/FLAG293f14d99 [2023-04-03 05:38:21,874 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/595bab4cd/53d0bc7ec92c41f18e25044ec1697075 [2023-04-03 05:38:21,876 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-04-03 05:38:21,877 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2023-04-03 05:38:21,879 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-04-03 05:38:21,880 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-04-03 05:38:21,882 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-04-03 05:38:21,882 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.04 05:38:21" (1/1) ... [2023-04-03 05:38:21,884 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@87c63bb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.04 05:38:21, skipping insertion in model container [2023-04-03 05:38:21,884 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.04 05:38:21" (1/1) ... [2023-04-03 05:38:21,888 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-04-03 05:38:21,956 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-04-03 05:38:22,628 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--hwmon--abituguru3.ko-entry_point.cil.out.i[192198,192211] [2023-04-03 05:38:22,714 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-04-03 05:38:22,771 INFO L203 MainTranslator]: Completed pre-run [2023-04-03 05:38:22,927 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--hwmon--abituguru3.ko-entry_point.cil.out.i[192198,192211] [2023-04-03 05:38:22,950 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-04-03 05:38:23,113 WARN L667 CHandler]: The function strcspn is called, but not defined or handled by StandardFunctionHandler. [2023-04-03 05:38:23,114 WARN L667 CHandler]: The function sprintf is called, but not defined or handled by StandardFunctionHandler. [2023-04-03 05:38:23,118 INFO L208 MainTranslator]: Completed translation [2023-04-03 05:38:23,118 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.04 05:38:23 WrapperNode [2023-04-03 05:38:23,118 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-04-03 05:38:23,119 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-04-03 05:38:23,119 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-04-03 05:38:23,119 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-04-03 05:38:23,127 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.04 05:38:23" (1/1) ... [2023-04-03 05:38:23,127 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.04 05:38:23" (1/1) ... [2023-04-03 05:38:23,199 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.04 05:38:23" (1/1) ... [2023-04-03 05:38:23,199 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.04 05:38:23" (1/1) ... [2023-04-03 05:38:23,300 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.04 05:38:23" (1/1) ... [2023-04-03 05:38:23,318 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.04 05:38:23" (1/1) ... [2023-04-03 05:38:23,335 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.04 05:38:23" (1/1) ... [2023-04-03 05:38:23,354 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.04 05:38:23" (1/1) ... [2023-04-03 05:38:23,377 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-04-03 05:38:23,378 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-04-03 05:38:23,378 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-04-03 05:38:23,380 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-04-03 05:38:23,380 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.04 05:38:23" (1/1) ... [2023-04-03 05:38:23,385 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-04-03 05:38:23,392 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-03 05:38:23,406 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 05:38:23,436 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 05:38:23,448 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2023-04-03 05:38:23,448 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-04-03 05:38:23,448 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~~TO~VOID [2023-04-03 05:38:23,448 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2023-04-03 05:38:23,448 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2023-04-03 05:38:23,449 INFO L138 BoogieDeclarations]: Found implementation of procedure slow_down_io [2023-04-03 05:38:23,449 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-04-03 05:38:23,449 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2023-04-03 05:38:23,449 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2023-04-03 05:38:23,449 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_zalloc [2023-04-03 05:38:23,449 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_memset [2023-04-03 05:38:23,449 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2023-04-03 05:38:23,449 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_ulong [2023-04-03 05:38:23,449 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2023-04-03 05:38:23,450 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2023-04-03 05:38:23,450 INFO L138 BoogieDeclarations]: Found implementation of procedure outb [2023-04-03 05:38:23,450 INFO L138 BoogieDeclarations]: Found implementation of procedure inb [2023-04-03 05:38:23,450 INFO L138 BoogieDeclarations]: Found implementation of procedure inb_p [2023-04-03 05:38:23,450 INFO L138 BoogieDeclarations]: Found implementation of procedure devm_kzalloc [2023-04-03 05:38:23,450 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_get_drvdata [2023-04-03 05:38:23,450 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_set_drvdata [2023-04-03 05:38:23,450 INFO L138 BoogieDeclarations]: Found implementation of procedure platform_get_drvdata [2023-04-03 05:38:23,450 INFO L138 BoogieDeclarations]: Found implementation of procedure platform_set_drvdata [2023-04-03 05:38:23,450 INFO L138 BoogieDeclarations]: Found implementation of procedure abituguru3_wait_while_busy [2023-04-03 05:38:23,450 INFO L138 BoogieDeclarations]: Found implementation of procedure abituguru3_wait_for_read [2023-04-03 05:38:23,450 INFO L138 BoogieDeclarations]: Found implementation of procedure abituguru3_synchronize [2023-04-03 05:38:23,450 INFO L138 BoogieDeclarations]: Found implementation of procedure abituguru3_read [2023-04-03 05:38:23,451 INFO L138 BoogieDeclarations]: Found implementation of procedure abituguru3_read_increment_offset [2023-04-03 05:38:23,451 INFO L138 BoogieDeclarations]: Found implementation of procedure show_value [2023-04-03 05:38:23,451 INFO L138 BoogieDeclarations]: Found implementation of procedure show_alarm [2023-04-03 05:38:23,451 INFO L138 BoogieDeclarations]: Found implementation of procedure show_mask [2023-04-03 05:38:23,451 INFO L138 BoogieDeclarations]: Found implementation of procedure show_label [2023-04-03 05:38:23,451 INFO L138 BoogieDeclarations]: Found implementation of procedure show_name [2023-04-03 05:38:23,451 INFO L138 BoogieDeclarations]: Found implementation of procedure abituguru3_probe [2023-04-03 05:38:23,451 INFO L138 BoogieDeclarations]: Found implementation of procedure abituguru3_remove [2023-04-03 05:38:23,451 INFO L138 BoogieDeclarations]: Found implementation of procedure abituguru3_update_device [2023-04-03 05:38:23,451 INFO L138 BoogieDeclarations]: Found implementation of procedure abituguru3_suspend [2023-04-03 05:38:23,451 INFO L138 BoogieDeclarations]: Found implementation of procedure abituguru3_resume [2023-04-03 05:38:23,451 INFO L138 BoogieDeclarations]: Found implementation of procedure abituguru3_dmi_detect [2023-04-03 05:38:23,505 INFO L138 BoogieDeclarations]: Found implementation of procedure abituguru3_detect [2023-04-03 05:38:23,505 INFO L138 BoogieDeclarations]: Found implementation of procedure abituguru3_init [2023-04-03 05:38:23,505 INFO L138 BoogieDeclarations]: Found implementation of procedure abituguru3_exit [2023-04-03 05:38:23,505 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_platform_probe_1 [2023-04-03 05:38:23,505 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_pm_ops_2 [2023-04-03 05:38:23,505 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_platform_driver_init_1 [2023-04-03 05:38:23,506 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2023-04-03 05:38:23,506 INFO L138 BoogieDeclarations]: Found implementation of procedure PTR_ERR [2023-04-03 05:38:23,506 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2023-04-03 05:38:23,506 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_5 [2023-04-03 05:38:23,506 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_6 [2023-04-03 05:38:23,506 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_7 [2023-04-03 05:38:23,506 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_trylock_8 [2023-04-03 05:38:23,506 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_9 [2023-04-03 05:38:23,506 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_10 [2023-04-03 05:38:23,506 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_11 [2023-04-03 05:38:23,506 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_12 [2023-04-03 05:38:23,506 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_13 [2023-04-03 05:38:23,506 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv___platform_driver_register_14 [2023-04-03 05:38:23,506 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_platform_driver_unregister_15 [2023-04-03 05:38:23,506 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_platform_driver_unregister_16 [2023-04-03 05:38:23,506 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2023-04-03 05:38:23,506 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int_negative [2023-04-03 05:38:23,507 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2023-04-03 05:38:23,507 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_err_ptr [2023-04-03 05:38:23,507 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_ptr_err [2023-04-03 05:38:23,507 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err_or_null [2023-04-03 05:38:23,507 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_interruptible_lock [2023-04-03 05:38:23,507 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_killable_lock [2023-04-03 05:38:23,507 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_lock [2023-04-03 05:38:23,507 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_trylock_lock [2023-04-03 05:38:23,507 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_dec_and_mutex_lock_lock [2023-04-03 05:38:23,507 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_is_locked_lock [2023-04-03 05:38:23,507 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_lock [2023-04-03 05:38:23,507 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_lock_device_lock [2023-04-03 05:38:23,507 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_trylock_device_lock [2023-04-03 05:38:23,507 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_lock_device_for_reset_lock [2023-04-03 05:38:23,507 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_unlock_device_lock [2023-04-03 05:38:23,507 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_interruptible_mutex_of_device [2023-04-03 05:38:23,507 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_killable_mutex_of_device [2023-04-03 05:38:23,508 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_mutex_of_device [2023-04-03 05:38:23,508 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_trylock_mutex_of_device [2023-04-03 05:38:23,508 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_dec_and_mutex_lock_mutex_of_device [2023-04-03 05:38:23,508 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_is_locked_mutex_of_device [2023-04-03 05:38:23,508 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_mutex_of_device [2023-04-03 05:38:23,508 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_lock_device_mutex_of_device [2023-04-03 05:38:23,508 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_trylock_device_mutex_of_device [2023-04-03 05:38:23,508 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_lock_device_for_reset_mutex_of_device [2023-04-03 05:38:23,508 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_unlock_device_mutex_of_device [2023-04-03 05:38:23,508 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_interruptible_update_lock_of_abituguru3_data [2023-04-03 05:38:23,508 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_killable_update_lock_of_abituguru3_data [2023-04-03 05:38:23,508 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_update_lock_of_abituguru3_data [2023-04-03 05:38:23,508 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_trylock_update_lock_of_abituguru3_data [2023-04-03 05:38:23,508 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_dec_and_mutex_lock_update_lock_of_abituguru3_data [2023-04-03 05:38:23,508 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_is_locked_update_lock_of_abituguru3_data [2023-04-03 05:38:23,508 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_update_lock_of_abituguru3_data [2023-04-03 05:38:23,508 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_lock_device_update_lock_of_abituguru3_data [2023-04-03 05:38:23,509 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_trylock_device_update_lock_of_abituguru3_data [2023-04-03 05:38:23,509 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_lock_device_for_reset_update_lock_of_abituguru3_data [2023-04-03 05:38:23,509 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_unlock_device_update_lock_of_abituguru3_data [2023-04-03 05:38:23,509 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2023-04-03 05:38:23,509 INFO L138 BoogieDeclarations]: Found implementation of procedure __dynamic_pr_debug [2023-04-03 05:38:23,509 INFO L138 BoogieDeclarations]: Found implementation of procedure __mutex_init [2023-04-03 05:38:23,509 INFO L138 BoogieDeclarations]: Found implementation of procedure __platform_driver_register [2023-04-03 05:38:23,509 INFO L138 BoogieDeclarations]: Found implementation of procedure device_create_file [2023-04-03 05:38:23,509 INFO L138 BoogieDeclarations]: Found implementation of procedure device_remove_file [2023-04-03 05:38:23,509 INFO L138 BoogieDeclarations]: Found implementation of procedure devm_kmalloc [2023-04-03 05:38:23,509 INFO L138 BoogieDeclarations]: Found implementation of procedure dmi_get_system_info [2023-04-03 05:38:23,509 INFO L138 BoogieDeclarations]: Found implementation of procedure hwmon_device_register [2023-04-03 05:38:23,509 INFO L138 BoogieDeclarations]: Found implementation of procedure hwmon_device_unregister [2023-04-03 05:38:23,509 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_complete_2 [2023-04-03 05:38:23,509 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_freeze_late_2 [2023-04-03 05:38:23,509 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_freeze_noirq_2 [2023-04-03 05:38:23,509 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize [2023-04-03 05:38:23,510 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_poweroff_late_2 [2023-04-03 05:38:23,510 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_poweroff_noirq_2 [2023-04-03 05:38:23,510 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_prepare_2 [2023-04-03 05:38:23,510 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_restore_early_2 [2023-04-03 05:38:23,510 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_restore_noirq_2 [2023-04-03 05:38:23,510 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_resume_early_2 [2023-04-03 05:38:23,510 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_resume_noirq_2 [2023-04-03 05:38:23,510 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_suspend_late_2 [2023-04-03 05:38:23,510 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_suspend_noirq_2 [2023-04-03 05:38:23,510 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_thaw_early_2 [2023-04-03 05:38:23,510 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_thaw_noirq_2 [2023-04-03 05:38:23,510 INFO L138 BoogieDeclarations]: Found implementation of procedure msleep [2023-04-03 05:38:23,510 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock [2023-04-03 05:38:23,510 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_trylock [2023-04-03 05:38:23,510 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2023-04-03 05:38:23,510 INFO L138 BoogieDeclarations]: Found implementation of procedure platform_device_add [2023-04-03 05:38:23,510 INFO L138 BoogieDeclarations]: Found implementation of procedure platform_device_add_resources [2023-04-03 05:38:23,511 INFO L138 BoogieDeclarations]: Found implementation of procedure platform_device_alloc [2023-04-03 05:38:23,511 INFO L138 BoogieDeclarations]: Found implementation of procedure platform_device_put [2023-04-03 05:38:23,511 INFO L138 BoogieDeclarations]: Found implementation of procedure platform_device_unregister [2023-04-03 05:38:23,511 INFO L138 BoogieDeclarations]: Found implementation of procedure platform_driver_unregister [2023-04-03 05:38:23,511 INFO L138 BoogieDeclarations]: Found implementation of procedure platform_get_resource [2023-04-03 05:38:23,511 INFO L138 BoogieDeclarations]: Found implementation of procedure printk [2023-04-03 05:38:23,511 INFO L138 BoogieDeclarations]: Found implementation of procedure strncasecmp [2023-04-03 05:38:23,511 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2023-04-03 05:38:23,511 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2023-04-03 05:38:23,511 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2023-04-03 05:38:23,511 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2023-04-03 05:38:23,511 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2023-04-03 05:38:23,511 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_perror_fail [2023-04-03 05:38:23,511 INFO L130 BoogieDeclarations]: Found specification of procedure __assert [2023-04-03 05:38:23,511 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2023-04-03 05:38:23,511 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-04-03 05:38:23,512 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2023-04-03 05:38:23,512 INFO L130 BoogieDeclarations]: Found specification of procedure printk [2023-04-03 05:38:23,512 INFO L130 BoogieDeclarations]: Found specification of procedure __dynamic_pr_debug [2023-04-03 05:38:23,512 INFO L130 BoogieDeclarations]: Found specification of procedure sprintf [2023-04-03 05:38:23,512 INFO L130 BoogieDeclarations]: Found specification of procedure snprintf [2023-04-03 05:38:23,512 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2023-04-03 05:38:23,512 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_ptr_err [2023-04-03 05:38:23,512 INFO L130 BoogieDeclarations]: Found specification of procedure memset [2023-04-03 05:38:23,512 INFO L130 BoogieDeclarations]: Found specification of procedure strlen [2023-04-03 05:38:23,512 INFO L130 BoogieDeclarations]: Found specification of procedure strcmp [2023-04-03 05:38:23,512 INFO L130 BoogieDeclarations]: Found specification of procedure strncasecmp [2023-04-03 05:38:23,512 INFO L130 BoogieDeclarations]: Found specification of procedure strcspn [2023-04-03 05:38:23,512 INFO L130 BoogieDeclarations]: Found specification of procedure slow_down_io [2023-04-03 05:38:23,512 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~~TO~VOID [2023-04-03 05:38:23,512 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-04-03 05:38:23,514 INFO L130 BoogieDeclarations]: Found specification of procedure PTR_ERR [2023-04-03 05:38:23,514 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2023-04-03 05:38:23,514 INFO L130 BoogieDeclarations]: Found specification of procedure __mutex_init [2023-04-03 05:38:23,514 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_trylock [2023-04-03 05:38:23,514 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_trylock_8 [2023-04-03 05:38:23,514 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2023-04-03 05:38:23,514 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_6 [2023-04-03 05:38:23,515 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_9 [2023-04-03 05:38:23,515 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_11 [2023-04-03 05:38:23,515 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_13 [2023-04-03 05:38:23,515 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2023-04-03 05:38:23,515 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2023-04-03 05:38:23,515 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2023-04-03 05:38:23,515 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_ulong [2023-04-03 05:38:23,515 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-04-03 05:38:23,515 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2023-04-03 05:38:23,515 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-04-03 05:38:23,515 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2023-04-03 05:38:23,516 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2023-04-03 05:38:23,516 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_zalloc [2023-04-03 05:38:23,516 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_memset [2023-04-03 05:38:23,516 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2023-04-03 05:38:23,516 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2023-04-03 05:38:23,516 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_ulong [2023-04-03 05:38:23,516 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2023-04-03 05:38:23,516 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock [2023-04-03 05:38:23,516 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_5 [2023-04-03 05:38:23,516 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_7 [2023-04-03 05:38:23,516 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_10 [2023-04-03 05:38:23,516 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_12 [2023-04-03 05:38:23,516 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_lock [2023-04-03 05:38:23,516 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_lock [2023-04-03 05:38:23,516 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_mutex_of_device [2023-04-03 05:38:23,516 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_trylock_mutex_of_device [2023-04-03 05:38:23,516 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_mutex_of_device [2023-04-03 05:38:23,517 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_update_lock_of_abituguru3_data [2023-04-03 05:38:23,517 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_update_lock_of_abituguru3_data [2023-04-03 05:38:23,517 INFO L130 BoogieDeclarations]: Found specification of procedure outb [2023-04-03 05:38:23,517 INFO L130 BoogieDeclarations]: Found specification of procedure inb [2023-04-03 05:38:23,517 INFO L130 BoogieDeclarations]: Found specification of procedure inb_p [2023-04-03 05:38:23,517 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_platform_probe_1 [2023-04-03 05:38:23,517 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_pm_ops_2 [2023-04-03 05:38:23,517 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_platform_driver_init_1 [2023-04-03 05:38:23,517 INFO L130 BoogieDeclarations]: Found specification of procedure msleep [2023-04-03 05:38:23,517 INFO L130 BoogieDeclarations]: Found specification of procedure device_create_file [2023-04-03 05:38:23,517 INFO L130 BoogieDeclarations]: Found specification of procedure device_remove_file [2023-04-03 05:38:23,517 INFO L130 BoogieDeclarations]: Found specification of procedure devm_kmalloc [2023-04-03 05:38:23,518 INFO L130 BoogieDeclarations]: Found specification of procedure devm_kzalloc [2023-04-03 05:38:23,518 INFO L130 BoogieDeclarations]: Found specification of procedure dev_get_drvdata [2023-04-03 05:38:23,518 INFO L130 BoogieDeclarations]: Found specification of procedure dev_set_drvdata [2023-04-03 05:38:23,518 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-04-03 05:38:23,519 INFO L130 BoogieDeclarations]: Found specification of procedure platform_device_unregister [2023-04-03 05:38:23,519 INFO L130 BoogieDeclarations]: Found specification of procedure platform_get_resource [2023-04-03 05:38:23,519 INFO L130 BoogieDeclarations]: Found specification of procedure platform_device_alloc [2023-04-03 05:38:23,519 INFO L130 BoogieDeclarations]: Found specification of procedure platform_device_add_resources [2023-04-03 05:38:23,519 INFO L130 BoogieDeclarations]: Found specification of procedure platform_device_add [2023-04-03 05:38:23,519 INFO L130 BoogieDeclarations]: Found specification of procedure platform_device_put [2023-04-03 05:38:23,519 INFO L130 BoogieDeclarations]: Found specification of procedure __platform_driver_register [2023-04-03 05:38:23,519 INFO L130 BoogieDeclarations]: Found specification of procedure ldv___platform_driver_register_14 [2023-04-03 05:38:23,519 INFO L130 BoogieDeclarations]: Found specification of procedure platform_driver_unregister [2023-04-03 05:38:23,519 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_platform_driver_unregister_15 [2023-04-03 05:38:23,519 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_platform_driver_unregister_16 [2023-04-03 05:38:23,519 INFO L130 BoogieDeclarations]: Found specification of procedure platform_get_drvdata [2023-04-03 05:38:23,519 INFO L130 BoogieDeclarations]: Found specification of procedure platform_set_drvdata [2023-04-03 05:38:23,519 INFO L130 BoogieDeclarations]: Found specification of procedure hwmon_device_register [2023-04-03 05:38:23,519 INFO L130 BoogieDeclarations]: Found specification of procedure hwmon_device_unregister [2023-04-03 05:38:23,519 INFO L130 BoogieDeclarations]: Found specification of procedure dmi_get_system_info [2023-04-03 05:38:23,519 INFO L130 BoogieDeclarations]: Found specification of procedure abituguru3_wait_while_busy [2023-04-03 05:38:23,519 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-04-03 05:38:23,520 INFO L130 BoogieDeclarations]: Found specification of procedure abituguru3_wait_for_read [2023-04-03 05:38:23,520 INFO L130 BoogieDeclarations]: Found specification of procedure abituguru3_synchronize [2023-04-03 05:38:23,520 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-04-03 05:38:23,520 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-04-03 05:38:23,520 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-04-03 05:38:23,520 INFO L130 BoogieDeclarations]: Found specification of procedure abituguru3_read [2023-04-03 05:38:23,520 INFO L130 BoogieDeclarations]: Found specification of procedure abituguru3_read_increment_offset [2023-04-03 05:38:23,520 INFO L130 BoogieDeclarations]: Found specification of procedure abituguru3_update_device [2023-04-03 05:38:23,521 INFO L130 BoogieDeclarations]: Found specification of procedure show_value [2023-04-03 05:38:23,521 INFO L130 BoogieDeclarations]: Found specification of procedure show_alarm [2023-04-03 05:38:23,521 INFO L130 BoogieDeclarations]: Found specification of procedure show_mask [2023-04-03 05:38:23,521 INFO L130 BoogieDeclarations]: Found specification of procedure show_label [2023-04-03 05:38:23,522 INFO L130 BoogieDeclarations]: Found specification of procedure show_name [2023-04-03 05:38:23,522 INFO L130 BoogieDeclarations]: Found specification of procedure abituguru3_probe [2023-04-03 05:38:23,522 INFO L130 BoogieDeclarations]: Found specification of procedure abituguru3_remove [2023-04-03 05:38:23,522 INFO L130 BoogieDeclarations]: Found specification of procedure abituguru3_suspend [2023-04-03 05:38:23,522 INFO L130 BoogieDeclarations]: Found specification of procedure abituguru3_resume [2023-04-03 05:38:23,523 INFO L130 BoogieDeclarations]: Found specification of procedure abituguru3_dmi_detect [2023-04-03 05:38:23,524 INFO L130 BoogieDeclarations]: Found specification of procedure abituguru3_detect [2023-04-03 05:38:23,525 INFO L130 BoogieDeclarations]: Found specification of procedure abituguru3_init [2023-04-03 05:38:23,528 INFO L130 BoogieDeclarations]: Found specification of procedure abituguru3_exit [2023-04-03 05:38:23,528 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_suspend_late_2 [2023-04-03 05:38:23,528 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_restore_noirq_2 [2023-04-03 05:38:23,528 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_freeze_late_2 [2023-04-03 05:38:23,528 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_complete_2 [2023-04-03 05:38:23,528 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2023-04-03 05:38:23,528 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_thaw_early_2 [2023-04-03 05:38:23,528 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_poweroff_noirq_2 [2023-04-03 05:38:23,528 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_resume_noirq_2 [2023-04-03 05:38:23,528 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_resume_early_2 [2023-04-03 05:38:23,528 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_prepare_2 [2023-04-03 05:38:23,528 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize [2023-04-03 05:38:23,528 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_restore_early_2 [2023-04-03 05:38:23,528 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_suspend_noirq_2 [2023-04-03 05:38:23,528 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_poweroff_late_2 [2023-04-03 05:38:23,528 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_thaw_noirq_2 [2023-04-03 05:38:23,528 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_freeze_noirq_2 [2023-04-03 05:38:23,529 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2023-04-03 05:38:23,529 INFO L130 BoogieDeclarations]: Found specification of procedure main [2023-04-03 05:38:23,529 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2023-04-03 05:38:23,529 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int_negative [2023-04-03 05:38:23,529 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_err_ptr [2023-04-03 05:38:23,529 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err_or_null [2023-04-03 05:38:23,529 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_interruptible_lock [2023-04-03 05:38:23,529 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_killable_lock [2023-04-03 05:38:23,529 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_trylock_lock [2023-04-03 05:38:23,529 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_dec_and_mutex_lock_lock [2023-04-03 05:38:23,529 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_is_locked_lock [2023-04-03 05:38:23,529 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_lock_device_lock [2023-04-03 05:38:23,529 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_trylock_device_lock [2023-04-03 05:38:23,529 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_lock_device_for_reset_lock [2023-04-03 05:38:23,529 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_unlock_device_lock [2023-04-03 05:38:23,529 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_interruptible_mutex_of_device [2023-04-03 05:38:23,529 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_killable_mutex_of_device [2023-04-03 05:38:23,529 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_dec_and_mutex_lock_mutex_of_device [2023-04-03 05:38:23,529 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_is_locked_mutex_of_device [2023-04-03 05:38:23,529 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_lock_device_mutex_of_device [2023-04-03 05:38:23,529 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_trylock_device_mutex_of_device [2023-04-03 05:38:23,530 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_lock_device_for_reset_mutex_of_device [2023-04-03 05:38:23,530 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_unlock_device_mutex_of_device [2023-04-03 05:38:23,530 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_interruptible_update_lock_of_abituguru3_data [2023-04-03 05:38:23,530 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_killable_update_lock_of_abituguru3_data [2023-04-03 05:38:23,530 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_trylock_update_lock_of_abituguru3_data [2023-04-03 05:38:23,530 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_dec_and_mutex_lock_update_lock_of_abituguru3_data [2023-04-03 05:38:23,530 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_is_locked_update_lock_of_abituguru3_data [2023-04-03 05:38:23,530 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_lock_device_update_lock_of_abituguru3_data [2023-04-03 05:38:23,530 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_trylock_device_update_lock_of_abituguru3_data [2023-04-03 05:38:23,530 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_lock_device_for_reset_update_lock_of_abituguru3_data [2023-04-03 05:38:23,530 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_unlock_device_update_lock_of_abituguru3_data [2023-04-03 05:38:23,530 INFO L130 BoogieDeclarations]: Found specification of procedure free [2023-04-03 05:38:23,530 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2023-04-03 05:38:23,530 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2023-04-03 05:38:23,530 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-04-03 05:38:23,530 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2023-04-03 05:38:23,530 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-04-03 05:38:23,907 INFO L236 CfgBuilder]: Building ICFG [2023-04-03 05:38:23,910 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-04-03 05:38:24,123 INFO L771 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2023-04-03 05:38:36,590 INFO L277 CfgBuilder]: Performing block encoding [2023-04-03 05:38:37,153 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-04-03 05:38:37,153 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-04-03 05:38:37,157 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.04 05:38:37 BoogieIcfgContainer [2023-04-03 05:38:37,157 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-04-03 05:38:37,158 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-04-03 05:38:37,158 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-04-03 05:38:37,160 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-04-03 05:38:37,160 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.04 05:38:21" (1/3) ... [2023-04-03 05:38:37,161 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4a7963c3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.04 05:38:37, skipping insertion in model container [2023-04-03 05:38:37,161 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.04 05:38:23" (2/3) ... [2023-04-03 05:38:37,161 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4a7963c3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.04 05:38:37, skipping insertion in model container [2023-04-03 05:38:37,161 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.04 05:38:37" (3/3) ... [2023-04-03 05:38:37,162 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-4.2-rc1.tar.xz-32_7a-drivers--hwmon--abituguru3.ko-entry_point.cil.out.i [2023-04-03 05:38:37,173 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-04-03 05:38:37,173 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-04-03 05:38:37,224 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-04-03 05:38:37,229 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;@7de1321d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-04-03 05:38:37,229 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-04-03 05:38:37,236 INFO L276 IsEmpty]: Start isEmpty. Operand has 832 states, 497 states have (on average 1.3319919517102616) internal successors, (662), 525 states have internal predecessors, (662), 203 states have call successors, (203), 89 states have call predecessors, (203), 88 states have return successors, (198), 198 states have call predecessors, (198), 198 states have call successors, (198) [2023-04-03 05:38:37,245 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2023-04-03 05:38:37,245 INFO L187 NwaCegarLoop]: Found error trace [2023-04-03 05:38:37,246 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] [2023-04-03 05:38:37,246 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-03 05:38:37,250 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-03 05:38:37,250 INFO L85 PathProgramCache]: Analyzing trace with hash 652480313, now seen corresponding path program 1 times [2023-04-03 05:38:37,257 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-03 05:38:37,257 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1941177446] [2023-04-03 05:38:37,257 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-03 05:38:37,258 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-03 05:38:37,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-03 05:38:38,427 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 05:38:38,428 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-03 05:38:38,428 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1941177446] [2023-04-03 05:38:38,429 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1941177446] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-03 05:38:38,429 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-03 05:38:38,429 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-04-03 05:38:38,430 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [327204016] [2023-04-03 05:38:38,430 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-03 05:38:38,434 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-04-03 05:38:38,435 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-03 05:38:38,462 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-04-03 05:38:38,464 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-04-03 05:38:38,467 INFO L87 Difference]: Start difference. First operand has 832 states, 497 states have (on average 1.3319919517102616) internal successors, (662), 525 states have internal predecessors, (662), 203 states have call successors, (203), 89 states have call predecessors, (203), 88 states have return successors, (198), 198 states have call predecessors, (198), 198 states have call successors, (198) Second operand has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 3 states have internal predecessors, (19), 2 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2023-04-03 05:38:39,059 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-03 05:38:39,059 INFO L93 Difference]: Finished difference Result 1888 states and 2591 transitions. [2023-04-03 05:38:39,060 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-04-03 05:38:39,061 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 3 states have internal predecessors, (19), 2 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 30 [2023-04-03 05:38:39,062 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-03 05:38:39,075 INFO L225 Difference]: With dead ends: 1888 [2023-04-03 05:38:39,075 INFO L226 Difference]: Without dead ends: 1194 [2023-04-03 05:38:39,081 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 05:38:39,083 INFO L413 NwaCegarLoop]: 832 mSDtfsCounter, 720 mSDsluCounter, 768 mSDsCounter, 0 mSdLazyCounter, 249 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 720 SdHoareTripleChecker+Valid, 1600 SdHoareTripleChecker+Invalid, 251 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 249 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-04-03 05:38:39,083 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [720 Valid, 1600 Invalid, 251 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 249 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-04-03 05:38:39,096 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1194 states. [2023-04-03 05:38:39,157 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1194 to 1182. [2023-04-03 05:38:39,160 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1182 states, 739 states have (on average 1.3558863328822734) internal successors, (1002), 779 states have internal predecessors, (1002), 301 states have call successors, (301), 144 states have call predecessors, (301), 141 states have return successors, (294), 293 states have call predecessors, (294), 294 states have call successors, (294) [2023-04-03 05:38:39,164 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1182 states to 1182 states and 1597 transitions. [2023-04-03 05:38:39,166 INFO L78 Accepts]: Start accepts. Automaton has 1182 states and 1597 transitions. Word has length 30 [2023-04-03 05:38:39,166 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-03 05:38:39,166 INFO L495 AbstractCegarLoop]: Abstraction has 1182 states and 1597 transitions. [2023-04-03 05:38:39,166 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 3 states have internal predecessors, (19), 2 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2023-04-03 05:38:39,166 INFO L276 IsEmpty]: Start isEmpty. Operand 1182 states and 1597 transitions. [2023-04-03 05:38:39,168 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2023-04-03 05:38:39,168 INFO L187 NwaCegarLoop]: Found error trace [2023-04-03 05:38:39,168 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-03 05:38:39,168 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-04-03 05:38:39,168 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-03 05:38:39,169 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-03 05:38:39,169 INFO L85 PathProgramCache]: Analyzing trace with hash 1916099822, now seen corresponding path program 1 times [2023-04-03 05:38:39,169 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-03 05:38:39,169 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [868921875] [2023-04-03 05:38:39,169 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-03 05:38:39,169 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-03 05:38:39,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-03 05:38:40,040 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 05:38:40,041 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-03 05:38:40,041 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [868921875] [2023-04-03 05:38:40,041 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [868921875] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-03 05:38:40,041 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-03 05:38:40,041 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-04-03 05:38:40,041 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1329585335] [2023-04-03 05:38:40,041 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-03 05:38:40,042 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-04-03 05:38:40,042 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-03 05:38:40,043 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-04-03 05:38:40,043 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-04-03 05:38:40,043 INFO L87 Difference]: Start difference. First operand 1182 states and 1597 transitions. Second operand has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 2 states have call successors, (9), 2 states have call predecessors, (9), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2023-04-03 05:38:40,447 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-03 05:38:40,447 INFO L93 Difference]: Finished difference Result 3273 states and 4443 transitions. [2023-04-03 05:38:40,447 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-04-03 05:38:40,447 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 2 states have call successors, (9), 2 states have call predecessors, (9), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 33 [2023-04-03 05:38:40,447 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-03 05:38:40,455 INFO L225 Difference]: With dead ends: 3273 [2023-04-03 05:38:40,455 INFO L226 Difference]: Without dead ends: 2100 [2023-04-03 05:38:40,570 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 05:38:40,573 INFO L413 NwaCegarLoop]: 1327 mSDtfsCounter, 857 mSDsluCounter, 670 mSDsCounter, 0 mSdLazyCounter, 255 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 857 SdHoareTripleChecker+Valid, 1997 SdHoareTripleChecker+Invalid, 258 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 255 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-04-03 05:38:40,573 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [857 Valid, 1997 Invalid, 258 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 255 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-04-03 05:38:40,575 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2100 states. [2023-04-03 05:38:40,637 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2100 to 2083. [2023-04-03 05:38:40,640 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2083 states, 1318 states have (on average 1.3611532625189682) internal successors, (1794), 1385 states have internal predecessors, (1794), 523 states have call successors, (523), 244 states have call predecessors, (523), 241 states have return successors, (516), 516 states have call predecessors, (516), 516 states have call successors, (516) [2023-04-03 05:38:40,647 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2083 states to 2083 states and 2833 transitions. [2023-04-03 05:38:40,647 INFO L78 Accepts]: Start accepts. Automaton has 2083 states and 2833 transitions. Word has length 33 [2023-04-03 05:38:40,648 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-03 05:38:40,648 INFO L495 AbstractCegarLoop]: Abstraction has 2083 states and 2833 transitions. [2023-04-03 05:38:40,648 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 2 states have call successors, (9), 2 states have call predecessors, (9), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2023-04-03 05:38:40,648 INFO L276 IsEmpty]: Start isEmpty. Operand 2083 states and 2833 transitions. [2023-04-03 05:38:40,649 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2023-04-03 05:38:40,649 INFO L187 NwaCegarLoop]: Found error trace [2023-04-03 05:38:40,649 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 05:38:40,649 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-04-03 05:38:40,649 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-03 05:38:40,650 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-03 05:38:40,650 INFO L85 PathProgramCache]: Analyzing trace with hash 1749276749, now seen corresponding path program 1 times [2023-04-03 05:38:40,650 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-03 05:38:40,650 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1626693338] [2023-04-03 05:38:40,650 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-03 05:38:40,650 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-03 05:38:40,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-03 05:38:41,257 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 05:38:41,257 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-03 05:38:41,257 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1626693338] [2023-04-03 05:38:41,257 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1626693338] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-03 05:38:41,257 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-03 05:38:41,258 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-04-03 05:38:41,258 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [82705198] [2023-04-03 05:38:41,258 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-03 05:38:41,258 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-04-03 05:38:41,258 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-03 05:38:41,259 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-04-03 05:38:41,259 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-04-03 05:38:41,259 INFO L87 Difference]: Start difference. First operand 2083 states and 2833 transitions. Second operand has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 3 states have internal predecessors, (28), 3 states have call successors, (9), 3 states have call predecessors, (9), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2023-04-03 05:38:41,561 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-03 05:38:41,561 INFO L93 Difference]: Finished difference Result 2085 states and 2834 transitions. [2023-04-03 05:38:41,561 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-04-03 05:38:41,562 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 3 states have internal predecessors, (28), 3 states have call successors, (9), 3 states have call predecessors, (9), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 43 [2023-04-03 05:38:41,562 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-03 05:38:41,569 INFO L225 Difference]: With dead ends: 2085 [2023-04-03 05:38:41,569 INFO L226 Difference]: Without dead ends: 2082 [2023-04-03 05:38:41,570 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 05:38:41,570 INFO L413 NwaCegarLoop]: 802 mSDtfsCounter, 884 mSDsluCounter, 1 mSDsCounter, 0 mSdLazyCounter, 100 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 884 SdHoareTripleChecker+Valid, 803 SdHoareTripleChecker+Invalid, 100 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 100 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-04-03 05:38:41,571 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [884 Valid, 803 Invalid, 100 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 100 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-04-03 05:38:41,572 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2082 states. [2023-04-03 05:38:41,621 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2082 to 2082. [2023-04-03 05:38:41,623 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2082 states, 1318 states have (on average 1.3603945371775417) internal successors, (1793), 1384 states have internal predecessors, (1793), 522 states have call successors, (522), 244 states have call predecessors, (522), 241 states have return successors, (516), 516 states have call predecessors, (516), 516 states have call successors, (516) [2023-04-03 05:38:41,630 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2082 states to 2082 states and 2831 transitions. [2023-04-03 05:38:41,630 INFO L78 Accepts]: Start accepts. Automaton has 2082 states and 2831 transitions. Word has length 43 [2023-04-03 05:38:41,630 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-03 05:38:41,630 INFO L495 AbstractCegarLoop]: Abstraction has 2082 states and 2831 transitions. [2023-04-03 05:38:41,630 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 3 states have internal predecessors, (28), 3 states have call successors, (9), 3 states have call predecessors, (9), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2023-04-03 05:38:41,631 INFO L276 IsEmpty]: Start isEmpty. Operand 2082 states and 2831 transitions. [2023-04-03 05:38:41,632 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2023-04-03 05:38:41,632 INFO L187 NwaCegarLoop]: Found error trace [2023-04-03 05:38:41,632 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 05:38:41,632 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-04-03 05:38:41,632 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-03 05:38:41,632 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-03 05:38:41,632 INFO L85 PathProgramCache]: Analyzing trace with hash -1607391030, now seen corresponding path program 1 times [2023-04-03 05:38:41,632 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-03 05:38:41,633 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1546801418] [2023-04-03 05:38:41,633 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-03 05:38:41,633 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-03 05:38:41,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-03 05:38:42,373 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 05:38:42,373 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-03 05:38:42,373 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1546801418] [2023-04-03 05:38:42,373 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1546801418] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-03 05:38:42,373 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-03 05:38:42,373 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-04-03 05:38:42,373 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2023759931] [2023-04-03 05:38:42,373 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-03 05:38:42,374 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-04-03 05:38:42,374 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-03 05:38:42,374 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-04-03 05:38:42,374 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-04-03 05:38:42,375 INFO L87 Difference]: Start difference. First operand 2082 states and 2831 transitions. Second operand has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 3 states have internal predecessors, (29), 3 states have call successors, (9), 3 states have call predecessors, (9), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2023-04-03 05:38:42,723 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-03 05:38:42,723 INFO L93 Difference]: Finished difference Result 2084 states and 2832 transitions. [2023-04-03 05:38:42,724 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-04-03 05:38:42,724 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 3 states have internal predecessors, (29), 3 states have call successors, (9), 3 states have call predecessors, (9), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 44 [2023-04-03 05:38:42,724 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-03 05:38:42,732 INFO L225 Difference]: With dead ends: 2084 [2023-04-03 05:38:42,732 INFO L226 Difference]: Without dead ends: 2081 [2023-04-03 05:38:42,737 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 05:38:42,740 INFO L413 NwaCegarLoop]: 800 mSDtfsCounter, 881 mSDsluCounter, 1 mSDsCounter, 0 mSdLazyCounter, 100 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 881 SdHoareTripleChecker+Valid, 801 SdHoareTripleChecker+Invalid, 100 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 100 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-04-03 05:38:42,740 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [881 Valid, 801 Invalid, 100 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 100 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-04-03 05:38:42,744 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2081 states. [2023-04-03 05:38:42,800 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2081 to 2081. [2023-04-03 05:38:42,803 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2081 states, 1318 states have (on average 1.3596358118361154) internal successors, (1792), 1383 states have internal predecessors, (1792), 521 states have call successors, (521), 244 states have call predecessors, (521), 241 states have return successors, (516), 516 states have call predecessors, (516), 516 states have call successors, (516) [2023-04-03 05:38:42,812 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2081 states to 2081 states and 2829 transitions. [2023-04-03 05:38:42,812 INFO L78 Accepts]: Start accepts. Automaton has 2081 states and 2829 transitions. Word has length 44 [2023-04-03 05:38:42,812 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-03 05:38:42,812 INFO L495 AbstractCegarLoop]: Abstraction has 2081 states and 2829 transitions. [2023-04-03 05:38:42,812 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 3 states have internal predecessors, (29), 3 states have call successors, (9), 3 states have call predecessors, (9), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2023-04-03 05:38:42,813 INFO L276 IsEmpty]: Start isEmpty. Operand 2081 states and 2829 transitions. [2023-04-03 05:38:42,814 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2023-04-03 05:38:42,815 INFO L187 NwaCegarLoop]: Found error trace [2023-04-03 05:38:42,815 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 05:38:42,815 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-04-03 05:38:42,815 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-03 05:38:42,815 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-03 05:38:42,815 INFO L85 PathProgramCache]: Analyzing trace with hash 1710095088, now seen corresponding path program 1 times [2023-04-03 05:38:42,816 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-03 05:38:42,816 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [653653944] [2023-04-03 05:38:42,816 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-03 05:38:42,816 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-03 05:38:42,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-03 05:38:43,766 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 05:38:43,766 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-03 05:38:43,766 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [653653944] [2023-04-03 05:38:43,766 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [653653944] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-03 05:38:43,766 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-03 05:38:43,766 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-04-03 05:38:43,766 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1705346323] [2023-04-03 05:38:43,766 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-03 05:38:43,767 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-04-03 05:38:43,767 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-03 05:38:43,767 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-04-03 05:38:43,767 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-04-03 05:38:43,767 INFO L87 Difference]: Start difference. First operand 2081 states and 2829 transitions. Second operand has 3 states, 3 states have (on average 10.0) internal successors, (30), 3 states have internal predecessors, (30), 3 states have call successors, (9), 3 states have call predecessors, (9), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2023-04-03 05:38:44,282 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-03 05:38:44,283 INFO L93 Difference]: Finished difference Result 5807 states and 7927 transitions. [2023-04-03 05:38:44,283 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-04-03 05:38:44,283 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 10.0) internal successors, (30), 3 states have internal predecessors, (30), 3 states have call successors, (9), 3 states have call predecessors, (9), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 45 [2023-04-03 05:38:44,284 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-03 05:38:44,304 INFO L225 Difference]: With dead ends: 5807 [2023-04-03 05:38:44,304 INFO L226 Difference]: Without dead ends: 3717 [2023-04-03 05:38:44,312 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-04-03 05:38:44,313 INFO L413 NwaCegarLoop]: 799 mSDtfsCounter, 813 mSDsluCounter, 712 mSDsCounter, 0 mSdLazyCounter, 189 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 813 SdHoareTripleChecker+Valid, 1511 SdHoareTripleChecker+Invalid, 193 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 189 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-04-03 05:38:44,313 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [813 Valid, 1511 Invalid, 193 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 189 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-04-03 05:38:44,317 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3717 states. [2023-04-03 05:38:44,453 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3717 to 3708. [2023-04-03 05:38:44,459 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3708 states, 2348 states have (on average 1.3577512776831346) internal successors, (3188), 2487 states have internal predecessors, (3188), 941 states have call successors, (941), 441 states have call predecessors, (941), 418 states have return successors, (932), 905 states have call predecessors, (932), 928 states have call successors, (932) [2023-04-03 05:38:44,470 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3708 states to 3708 states and 5061 transitions. [2023-04-03 05:38:44,471 INFO L78 Accepts]: Start accepts. Automaton has 3708 states and 5061 transitions. Word has length 45 [2023-04-03 05:38:44,472 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-03 05:38:44,472 INFO L495 AbstractCegarLoop]: Abstraction has 3708 states and 5061 transitions. [2023-04-03 05:38:44,472 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 10.0) internal successors, (30), 3 states have internal predecessors, (30), 3 states have call successors, (9), 3 states have call predecessors, (9), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2023-04-03 05:38:44,472 INFO L276 IsEmpty]: Start isEmpty. Operand 3708 states and 5061 transitions. [2023-04-03 05:38:44,475 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2023-04-03 05:38:44,475 INFO L187 NwaCegarLoop]: Found error trace [2023-04-03 05:38:44,476 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-03 05:38:44,476 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-04-03 05:38:44,476 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-03 05:38:44,476 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-03 05:38:44,476 INFO L85 PathProgramCache]: Analyzing trace with hash -945815428, now seen corresponding path program 1 times [2023-04-03 05:38:44,476 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-03 05:38:44,476 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [207154006] [2023-04-03 05:38:44,477 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-03 05:38:44,477 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-03 05:38:44,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-03 05:38:46,640 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-04-03 05:38:46,640 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-03 05:38:46,641 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [207154006] [2023-04-03 05:38:46,641 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [207154006] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-03 05:38:46,641 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-03 05:38:46,641 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-04-03 05:38:46,642 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1982424840] [2023-04-03 05:38:46,642 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-03 05:38:46,643 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-04-03 05:38:46,643 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-03 05:38:46,643 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-04-03 05:38:46,643 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2023-04-03 05:38:46,644 INFO L87 Difference]: Start difference. First operand 3708 states and 5061 transitions. Second operand has 9 states, 9 states have (on average 5.333333333333333) internal successors, (48), 7 states have internal predecessors, (48), 3 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (11), 5 states have call predecessors, (11), 3 states have call successors, (11) [2023-04-03 05:38:48,564 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-03 05:38:48,580 INFO L93 Difference]: Finished difference Result 8623 states and 11706 transitions. [2023-04-03 05:38:48,580 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-04-03 05:38:48,580 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 5.333333333333333) internal successors, (48), 7 states have internal predecessors, (48), 3 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (11), 5 states have call predecessors, (11), 3 states have call successors, (11) Word has length 75 [2023-04-03 05:38:48,581 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-03 05:38:48,604 INFO L225 Difference]: With dead ends: 8623 [2023-04-03 05:38:48,604 INFO L226 Difference]: Without dead ends: 4910 [2023-04-03 05:38:48,613 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=53, Invalid=219, Unknown=0, NotChecked=0, Total=272 [2023-04-03 05:38:48,614 INFO L413 NwaCegarLoop]: 1547 mSDtfsCounter, 901 mSDsluCounter, 9875 mSDsCounter, 0 mSdLazyCounter, 1770 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 908 SdHoareTripleChecker+Valid, 11422 SdHoareTripleChecker+Invalid, 1779 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 1770 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2023-04-03 05:38:48,614 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [908 Valid, 11422 Invalid, 1779 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 1770 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2023-04-03 05:38:48,618 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4910 states. [2023-04-03 05:38:48,777 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4910 to 4847. [2023-04-03 05:38:48,790 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4847 states, 3049 states have (on average 1.344375204985241) internal successors, (4099), 3235 states have internal predecessors, (4099), 1223 states have call successors, (1223), 585 states have call predecessors, (1223), 574 states have return successors, (1226), 1192 states have call predecessors, (1226), 1210 states have call successors, (1226) [2023-04-03 05:38:48,808 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4847 states to 4847 states and 6548 transitions. [2023-04-03 05:38:48,809 INFO L78 Accepts]: Start accepts. Automaton has 4847 states and 6548 transitions. Word has length 75 [2023-04-03 05:38:48,809 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-03 05:38:48,810 INFO L495 AbstractCegarLoop]: Abstraction has 4847 states and 6548 transitions. [2023-04-03 05:38:48,810 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 5.333333333333333) internal successors, (48), 7 states have internal predecessors, (48), 3 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (11), 5 states have call predecessors, (11), 3 states have call successors, (11) [2023-04-03 05:38:48,810 INFO L276 IsEmpty]: Start isEmpty. Operand 4847 states and 6548 transitions. [2023-04-03 05:38:48,812 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2023-04-03 05:38:48,812 INFO L187 NwaCegarLoop]: Found error trace [2023-04-03 05:38:48,812 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-03 05:38:48,812 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-04-03 05:38:48,812 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-03 05:38:48,813 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-03 05:38:48,813 INFO L85 PathProgramCache]: Analyzing trace with hash 1784494616, now seen corresponding path program 1 times [2023-04-03 05:38:48,813 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-03 05:38:48,813 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [883728385] [2023-04-03 05:38:48,813 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-03 05:38:48,813 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-03 05:38:49,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-03 05:38:49,982 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2023-04-03 05:38:49,982 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-03 05:38:49,983 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [883728385] [2023-04-03 05:38:49,983 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [883728385] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-03 05:38:49,983 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-03 05:38:49,983 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-04-03 05:38:49,983 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [54043873] [2023-04-03 05:38:49,983 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-03 05:38:49,983 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-04-03 05:38:49,983 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-03 05:38:49,984 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-04-03 05:38:49,984 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-04-03 05:38:49,984 INFO L87 Difference]: Start difference. First operand 4847 states and 6548 transitions. Second operand has 5 states, 5 states have (on average 11.0) internal successors, (55), 4 states have internal predecessors, (55), 2 states have call successors, (17), 2 states have call predecessors, (17), 3 states have return successors, (12), 3 states have call predecessors, (12), 2 states have call successors, (12) [2023-04-03 05:38:50,523 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-03 05:38:50,523 INFO L93 Difference]: Finished difference Result 9240 states and 12446 transitions. [2023-04-03 05:38:50,524 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-04-03 05:38:50,524 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.0) internal successors, (55), 4 states have internal predecessors, (55), 2 states have call successors, (17), 2 states have call predecessors, (17), 3 states have return successors, (12), 3 states have call predecessors, (12), 2 states have call successors, (12) Word has length 91 [2023-04-03 05:38:50,525 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-03 05:38:50,543 INFO L225 Difference]: With dead ends: 9240 [2023-04-03 05:38:50,543 INFO L226 Difference]: Without dead ends: 4903 [2023-04-03 05:38:50,555 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-04-03 05:38:50,555 INFO L413 NwaCegarLoop]: 806 mSDtfsCounter, 2 mSDsluCounter, 2387 mSDsCounter, 0 mSdLazyCounter, 432 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 3193 SdHoareTripleChecker+Invalid, 433 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 432 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-04-03 05:38:50,556 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 3193 Invalid, 433 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 432 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-04-03 05:38:50,559 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4903 states. [2023-04-03 05:38:50,785 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4903 to 4887. [2023-04-03 05:38:50,802 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4887 states, 3081 states have (on average 1.340798442064265) internal successors, (4131), 3267 states have internal predecessors, (4131), 1223 states have call successors, (1223), 585 states have call predecessors, (1223), 582 states have return successors, (1234), 1200 states have call predecessors, (1234), 1210 states have call successors, (1234) [2023-04-03 05:38:50,819 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4887 states to 4887 states and 6588 transitions. [2023-04-03 05:38:50,820 INFO L78 Accepts]: Start accepts. Automaton has 4887 states and 6588 transitions. Word has length 91 [2023-04-03 05:38:50,821 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-03 05:38:50,821 INFO L495 AbstractCegarLoop]: Abstraction has 4887 states and 6588 transitions. [2023-04-03 05:38:50,821 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.0) internal successors, (55), 4 states have internal predecessors, (55), 2 states have call successors, (17), 2 states have call predecessors, (17), 3 states have return successors, (12), 3 states have call predecessors, (12), 2 states have call successors, (12) [2023-04-03 05:38:50,821 INFO L276 IsEmpty]: Start isEmpty. Operand 4887 states and 6588 transitions. [2023-04-03 05:38:50,823 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2023-04-03 05:38:50,823 INFO L187 NwaCegarLoop]: Found error trace [2023-04-03 05:38:50,823 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-03 05:38:50,823 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-04-03 05:38:50,823 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-03 05:38:50,824 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-03 05:38:50,824 INFO L85 PathProgramCache]: Analyzing trace with hash 1153657926, now seen corresponding path program 1 times [2023-04-03 05:38:50,824 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-03 05:38:50,824 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1547267489] [2023-04-03 05:38:50,824 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-03 05:38:50,824 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-03 05:38:51,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-03 05:38:51,843 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2023-04-03 05:38:51,844 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-03 05:38:51,844 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1547267489] [2023-04-03 05:38:51,844 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1547267489] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-03 05:38:51,844 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-03 05:38:51,844 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-04-03 05:38:51,844 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1858044671] [2023-04-03 05:38:51,844 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-03 05:38:51,845 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-04-03 05:38:51,845 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-03 05:38:51,846 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-04-03 05:38:51,846 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-04-03 05:38:51,846 INFO L87 Difference]: Start difference. First operand 4887 states and 6588 transitions. Second operand has 5 states, 5 states have (on average 12.4) internal successors, (62), 4 states have internal predecessors, (62), 2 states have call successors, (18), 2 states have call predecessors, (18), 3 states have return successors, (13), 3 states have call predecessors, (13), 2 states have call successors, (13) [2023-04-03 05:38:52,396 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-03 05:38:52,396 INFO L93 Difference]: Finished difference Result 9304 states and 12502 transitions. [2023-04-03 05:38:52,397 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-04-03 05:38:52,397 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.4) internal successors, (62), 4 states have internal predecessors, (62), 2 states have call successors, (18), 2 states have call predecessors, (18), 3 states have return successors, (13), 3 states have call predecessors, (13), 2 states have call successors, (13) Word has length 100 [2023-04-03 05:38:52,398 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-03 05:38:52,423 INFO L225 Difference]: With dead ends: 9304 [2023-04-03 05:38:52,423 INFO L226 Difference]: Without dead ends: 4927 [2023-04-03 05:38:52,436 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-04-03 05:38:52,437 INFO L413 NwaCegarLoop]: 808 mSDtfsCounter, 7 mSDsluCounter, 2383 mSDsCounter, 0 mSdLazyCounter, 428 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 3191 SdHoareTripleChecker+Invalid, 433 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 428 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-04-03 05:38:52,437 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 3191 Invalid, 433 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 428 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-04-03 05:38:52,442 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4927 states. [2023-04-03 05:38:52,614 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4927 to 4895. [2023-04-03 05:38:52,619 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4895 states, 3089 states have (on average 1.337325995467789) internal successors, (4131), 3275 states have internal predecessors, (4131), 1223 states have call successors, (1223), 585 states have call predecessors, (1223), 582 states have return successors, (1234), 1200 states have call predecessors, (1234), 1210 states have call successors, (1234) [2023-04-03 05:38:52,632 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4895 states to 4895 states and 6588 transitions. [2023-04-03 05:38:52,634 INFO L78 Accepts]: Start accepts. Automaton has 4895 states and 6588 transitions. Word has length 100 [2023-04-03 05:38:52,634 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-03 05:38:52,635 INFO L495 AbstractCegarLoop]: Abstraction has 4895 states and 6588 transitions. [2023-04-03 05:38:52,635 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.4) internal successors, (62), 4 states have internal predecessors, (62), 2 states have call successors, (18), 2 states have call predecessors, (18), 3 states have return successors, (13), 3 states have call predecessors, (13), 2 states have call successors, (13) [2023-04-03 05:38:52,635 INFO L276 IsEmpty]: Start isEmpty. Operand 4895 states and 6588 transitions. [2023-04-03 05:38:52,640 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2023-04-03 05:38:52,640 INFO L187 NwaCegarLoop]: Found error trace [2023-04-03 05:38:52,640 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-03 05:38:52,640 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-04-03 05:38:52,640 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-03 05:38:52,641 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-03 05:38:52,641 INFO L85 PathProgramCache]: Analyzing trace with hash 1613205868, now seen corresponding path program 1 times [2023-04-03 05:38:52,641 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-03 05:38:52,641 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [509961186] [2023-04-03 05:38:52,641 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-03 05:38:52,641 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-03 05:38:52,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-03 05:38:53,621 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2023-04-03 05:38:53,621 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-03 05:38:53,621 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [509961186] [2023-04-03 05:38:53,621 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [509961186] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-03 05:38:53,622 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-03 05:38:53,622 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-04-03 05:38:53,622 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1306357394] [2023-04-03 05:38:53,622 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-03 05:38:53,623 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-04-03 05:38:53,623 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-03 05:38:53,623 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-04-03 05:38:53,623 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-04-03 05:38:53,623 INFO L87 Difference]: Start difference. First operand 4895 states and 6588 transitions. Second operand has 6 states, 6 states have (on average 9.833333333333334) internal successors, (59), 5 states have internal predecessors, (59), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (15), 3 states have call predecessors, (15), 2 states have call successors, (15) [2023-04-03 05:38:54,580 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-03 05:38:54,580 INFO L93 Difference]: Finished difference Result 9328 states and 12487 transitions. [2023-04-03 05:38:54,580 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-04-03 05:38:54,581 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.833333333333334) internal successors, (59), 5 states have internal predecessors, (59), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (15), 3 states have call predecessors, (15), 2 states have call successors, (15) Word has length 103 [2023-04-03 05:38:54,581 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-03 05:38:54,599 INFO L225 Difference]: With dead ends: 9328 [2023-04-03 05:38:54,599 INFO L226 Difference]: Without dead ends: 4861 [2023-04-03 05:38:54,614 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2023-04-03 05:38:54,616 INFO L413 NwaCegarLoop]: 1561 mSDtfsCounter, 865 mSDsluCounter, 5423 mSDsCounter, 0 mSdLazyCounter, 939 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 871 SdHoareTripleChecker+Valid, 6984 SdHoareTripleChecker+Invalid, 954 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 939 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-04-03 05:38:54,616 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [871 Valid, 6984 Invalid, 954 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 939 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-04-03 05:38:54,620 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4861 states. [2023-04-03 05:38:54,774 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4861 to 4827. [2023-04-03 05:38:54,781 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4827 states, 3057 states have (on average 1.3343146876022245) internal successors, (4079), 3235 states have internal predecessors, (4079), 1199 states have call successors, (1199), 573 states have call predecessors, (1199), 570 states have return successors, (1210), 1176 states have call predecessors, (1210), 1186 states have call successors, (1210) [2023-04-03 05:38:54,794 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4827 states to 4827 states and 6488 transitions. [2023-04-03 05:38:54,796 INFO L78 Accepts]: Start accepts. Automaton has 4827 states and 6488 transitions. Word has length 103 [2023-04-03 05:38:54,796 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-03 05:38:54,796 INFO L495 AbstractCegarLoop]: Abstraction has 4827 states and 6488 transitions. [2023-04-03 05:38:54,796 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.833333333333334) internal successors, (59), 5 states have internal predecessors, (59), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (15), 3 states have call predecessors, (15), 2 states have call successors, (15) [2023-04-03 05:38:54,796 INFO L276 IsEmpty]: Start isEmpty. Operand 4827 states and 6488 transitions. [2023-04-03 05:38:54,798 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2023-04-03 05:38:54,798 INFO L187 NwaCegarLoop]: Found error trace [2023-04-03 05:38:54,798 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-03 05:38:54,798 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-04-03 05:38:54,798 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-03 05:38:54,799 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-03 05:38:54,799 INFO L85 PathProgramCache]: Analyzing trace with hash 547782975, now seen corresponding path program 1 times [2023-04-03 05:38:54,799 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-03 05:38:54,799 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [526292667] [2023-04-03 05:38:54,799 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-03 05:38:54,799 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-03 05:38:55,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-03 05:38:55,478 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-04-03 05:38:55,478 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-03 05:38:55,478 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [526292667] [2023-04-03 05:38:55,478 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [526292667] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-03 05:38:55,478 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-03 05:38:55,478 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-04-03 05:38:55,479 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1473943039] [2023-04-03 05:38:55,479 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-03 05:38:55,479 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-04-03 05:38:55,479 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-03 05:38:55,479 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-04-03 05:38:55,479 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-04-03 05:38:55,480 INFO L87 Difference]: Start difference. First operand 4827 states and 6488 transitions. Second operand has 3 states, 3 states have (on average 21.666666666666668) internal successors, (65), 3 states have internal predecessors, (65), 2 states have call successors, (27), 2 states have call predecessors, (27), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2023-04-03 05:38:56,035 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-03 05:38:56,036 INFO L93 Difference]: Finished difference Result 10690 states and 14215 transitions. [2023-04-03 05:38:56,036 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-04-03 05:38:56,036 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 21.666666666666668) internal successors, (65), 3 states have internal predecessors, (65), 2 states have call successors, (27), 2 states have call predecessors, (27), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) Word has length 116 [2023-04-03 05:38:56,036 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-03 05:38:56,057 INFO L225 Difference]: With dead ends: 10690 [2023-04-03 05:38:56,057 INFO L226 Difference]: Without dead ends: 5872 [2023-04-03 05:38:56,072 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 05:38:56,072 INFO L413 NwaCegarLoop]: 976 mSDtfsCounter, 364 mSDsluCounter, 780 mSDsCounter, 0 mSdLazyCounter, 249 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 364 SdHoareTripleChecker+Valid, 1756 SdHoareTripleChecker+Invalid, 253 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 249 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-04-03 05:38:56,073 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [364 Valid, 1756 Invalid, 253 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 249 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-04-03 05:38:56,078 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5872 states. [2023-04-03 05:38:56,249 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5872 to 5661. [2023-04-03 05:38:56,254 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5661 states, 3625 states have (on average 1.3390344827586207) internal successors, (4854), 3809 states have internal predecessors, (4854), 1305 states have call successors, (1305), 733 states have call predecessors, (1305), 730 states have return successors, (1330), 1254 states have call predecessors, (1330), 1286 states have call successors, (1330) [2023-04-03 05:38:56,267 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5661 states to 5661 states and 7489 transitions. [2023-04-03 05:38:56,269 INFO L78 Accepts]: Start accepts. Automaton has 5661 states and 7489 transitions. Word has length 116 [2023-04-03 05:38:56,269 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-03 05:38:56,270 INFO L495 AbstractCegarLoop]: Abstraction has 5661 states and 7489 transitions. [2023-04-03 05:38:56,270 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 21.666666666666668) internal successors, (65), 3 states have internal predecessors, (65), 2 states have call successors, (27), 2 states have call predecessors, (27), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2023-04-03 05:38:56,270 INFO L276 IsEmpty]: Start isEmpty. Operand 5661 states and 7489 transitions. [2023-04-03 05:38:56,272 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2023-04-03 05:38:56,272 INFO L187 NwaCegarLoop]: Found error trace [2023-04-03 05:38:56,273 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-03 05:38:56,273 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-04-03 05:38:56,273 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-03 05:38:56,273 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-03 05:38:56,273 INFO L85 PathProgramCache]: Analyzing trace with hash 1230455030, now seen corresponding path program 1 times [2023-04-03 05:38:56,273 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-03 05:38:56,274 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1852128870] [2023-04-03 05:38:56,274 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-03 05:38:56,274 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-03 05:38:56,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-03 05:38:57,012 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2023-04-03 05:38:57,012 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-03 05:38:57,012 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1852128870] [2023-04-03 05:38:57,013 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1852128870] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-03 05:38:57,013 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-03 05:38:57,013 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-04-03 05:38:57,013 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2059824194] [2023-04-03 05:38:57,013 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-03 05:38:57,013 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-04-03 05:38:57,013 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-03 05:38:57,014 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-04-03 05:38:57,014 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-04-03 05:38:57,014 INFO L87 Difference]: Start difference. First operand 5661 states and 7489 transitions. Second operand has 3 states, 3 states have (on average 22.333333333333332) internal successors, (67), 3 states have internal predecessors, (67), 3 states have call successors, (24), 2 states have call predecessors, (24), 1 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) [2023-04-03 05:38:57,692 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-03 05:38:57,693 INFO L93 Difference]: Finished difference Result 13943 states and 18638 transitions. [2023-04-03 05:38:57,693 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-04-03 05:38:57,693 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 22.333333333333332) internal successors, (67), 3 states have internal predecessors, (67), 3 states have call successors, (24), 2 states have call predecessors, (24), 1 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) Word has length 122 [2023-04-03 05:38:57,693 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-03 05:38:57,723 INFO L225 Difference]: With dead ends: 13943 [2023-04-03 05:38:57,724 INFO L226 Difference]: Without dead ends: 8306 [2023-04-03 05:38:57,738 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 05:38:57,739 INFO L413 NwaCegarLoop]: 1055 mSDtfsCounter, 765 mSDsluCounter, 749 mSDsCounter, 0 mSdLazyCounter, 303 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 765 SdHoareTripleChecker+Valid, 1804 SdHoareTripleChecker+Invalid, 325 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 303 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-04-03 05:38:57,739 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [765 Valid, 1804 Invalid, 325 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 303 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-04-03 05:38:57,745 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8306 states. [2023-04-03 05:38:57,978 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8306 to 8281. [2023-04-03 05:38:57,987 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8281 states, 5418 states have (on average 1.338685861941676) internal successors, (7253), 5682 states have internal predecessors, (7253), 1843 states have call successors, (1843), 1014 states have call predecessors, (1843), 1019 states have return successors, (1890), 1787 states have call predecessors, (1890), 1824 states have call successors, (1890) [2023-04-03 05:38:58,003 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8281 states to 8281 states and 10986 transitions. [2023-04-03 05:38:58,005 INFO L78 Accepts]: Start accepts. Automaton has 8281 states and 10986 transitions. Word has length 122 [2023-04-03 05:38:58,006 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-03 05:38:58,006 INFO L495 AbstractCegarLoop]: Abstraction has 8281 states and 10986 transitions. [2023-04-03 05:38:58,006 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 22.333333333333332) internal successors, (67), 3 states have internal predecessors, (67), 3 states have call successors, (24), 2 states have call predecessors, (24), 1 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) [2023-04-03 05:38:58,006 INFO L276 IsEmpty]: Start isEmpty. Operand 8281 states and 10986 transitions. [2023-04-03 05:38:58,009 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2023-04-03 05:38:58,009 INFO L187 NwaCegarLoop]: Found error trace [2023-04-03 05:38:58,009 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-03 05:38:58,009 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-04-03 05:38:58,009 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-03 05:38:58,009 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-03 05:38:58,009 INFO L85 PathProgramCache]: Analyzing trace with hash -366480243, now seen corresponding path program 1 times [2023-04-03 05:38:58,010 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-03 05:38:58,010 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2124285894] [2023-04-03 05:38:58,010 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-03 05:38:58,010 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-03 05:38:58,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-03 05:39:00,108 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2023-04-03 05:39:00,108 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-03 05:39:00,108 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2124285894] [2023-04-03 05:39:00,108 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2124285894] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-03 05:39:00,109 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-03 05:39:00,109 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-04-03 05:39:00,109 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2035650261] [2023-04-03 05:39:00,109 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-03 05:39:00,109 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-04-03 05:39:00,109 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-03 05:39:00,110 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-04-03 05:39:00,110 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-04-03 05:39:00,110 INFO L87 Difference]: Start difference. First operand 8281 states and 10986 transitions. Second operand has 7 states, 6 states have (on average 14.166666666666666) internal successors, (85), 5 states have internal predecessors, (85), 2 states have call successors, (25), 2 states have call predecessors, (25), 4 states have return successors, (20), 4 states have call predecessors, (20), 2 states have call successors, (20) [2023-04-03 05:39:01,008 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-03 05:39:01,008 INFO L93 Difference]: Finished difference Result 16891 states and 22402 transitions. [2023-04-03 05:39:01,009 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-04-03 05:39:01,009 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 14.166666666666666) internal successors, (85), 5 states have internal predecessors, (85), 2 states have call successors, (25), 2 states have call predecessors, (25), 4 states have return successors, (20), 4 states have call predecessors, (20), 2 states have call successors, (20) Word has length 145 [2023-04-03 05:39:01,009 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-03 05:39:01,029 INFO L225 Difference]: With dead ends: 16891 [2023-04-03 05:39:01,030 INFO L226 Difference]: Without dead ends: 8605 [2023-04-03 05:39:01,043 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2023-04-03 05:39:01,045 INFO L413 NwaCegarLoop]: 810 mSDtfsCounter, 189 mSDsluCounter, 4023 mSDsCounter, 0 mSdLazyCounter, 618 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 192 SdHoareTripleChecker+Valid, 4833 SdHoareTripleChecker+Invalid, 619 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 618 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-04-03 05:39:01,045 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [192 Valid, 4833 Invalid, 619 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 618 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-04-03 05:39:01,053 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8605 states. [2023-04-03 05:39:01,359 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8605 to 8491. [2023-04-03 05:39:01,367 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8491 states, 5539 states have (on average 1.3338147680086658) internal successors, (7388), 5817 states have internal predecessors, (7388), 1881 states have call successors, (1881), 1046 states have call predecessors, (1881), 1070 states have return successors, (1969), 1831 states have call predecessors, (1969), 1862 states have call successors, (1969) [2023-04-03 05:39:01,385 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8491 states to 8491 states and 11238 transitions. [2023-04-03 05:39:01,387 INFO L78 Accepts]: Start accepts. Automaton has 8491 states and 11238 transitions. Word has length 145 [2023-04-03 05:39:01,387 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-03 05:39:01,388 INFO L495 AbstractCegarLoop]: Abstraction has 8491 states and 11238 transitions. [2023-04-03 05:39:01,388 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 14.166666666666666) internal successors, (85), 5 states have internal predecessors, (85), 2 states have call successors, (25), 2 states have call predecessors, (25), 4 states have return successors, (20), 4 states have call predecessors, (20), 2 states have call successors, (20) [2023-04-03 05:39:01,388 INFO L276 IsEmpty]: Start isEmpty. Operand 8491 states and 11238 transitions. [2023-04-03 05:39:01,390 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2023-04-03 05:39:01,390 INFO L187 NwaCegarLoop]: Found error trace [2023-04-03 05:39:01,390 INFO L195 NwaCegarLoop]: trace histogram [4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-03 05:39:01,391 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-04-03 05:39:01,391 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-03 05:39:01,391 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-03 05:39:01,391 INFO L85 PathProgramCache]: Analyzing trace with hash 1600976163, now seen corresponding path program 1 times [2023-04-03 05:39:01,391 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-03 05:39:01,391 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [479468312] [2023-04-03 05:39:01,391 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-03 05:39:01,391 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-03 05:39:01,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-03 05:39:02,991 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2023-04-03 05:39:02,991 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-03 05:39:02,991 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [479468312] [2023-04-03 05:39:02,991 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [479468312] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-03 05:39:02,991 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-03 05:39:02,991 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-04-03 05:39:02,992 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1292916683] [2023-04-03 05:39:02,992 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-03 05:39:02,992 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-04-03 05:39:02,992 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-03 05:39:02,992 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-04-03 05:39:02,992 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2023-04-03 05:39:02,993 INFO L87 Difference]: Start difference. First operand 8491 states and 11238 transitions. Second operand has 7 states, 7 states have (on average 12.571428571428571) internal successors, (88), 6 states have internal predecessors, (88), 3 states have call successors, (29), 2 states have call predecessors, (29), 3 states have return successors, (24), 4 states have call predecessors, (24), 3 states have call successors, (24) [2023-04-03 05:39:03,798 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-03 05:39:03,799 INFO L93 Difference]: Finished difference Result 16914 states and 22449 transitions. [2023-04-03 05:39:03,799 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-04-03 05:39:03,799 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 12.571428571428571) internal successors, (88), 6 states have internal predecessors, (88), 3 states have call successors, (29), 2 states have call predecessors, (29), 3 states have return successors, (24), 4 states have call predecessors, (24), 3 states have call successors, (24) Word has length 159 [2023-04-03 05:39:03,799 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-03 05:39:03,820 INFO L225 Difference]: With dead ends: 16914 [2023-04-03 05:39:03,820 INFO L226 Difference]: Without dead ends: 8547 [2023-04-03 05:39:03,837 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2023-04-03 05:39:03,838 INFO L413 NwaCegarLoop]: 796 mSDtfsCounter, 28 mSDsluCounter, 3098 mSDsCounter, 0 mSdLazyCounter, 586 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 31 SdHoareTripleChecker+Valid, 3894 SdHoareTripleChecker+Invalid, 589 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 586 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-04-03 05:39:03,838 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [31 Valid, 3894 Invalid, 589 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 586 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-04-03 05:39:03,843 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8547 states. [2023-04-03 05:39:04,084 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8547 to 8423. [2023-04-03 05:39:04,093 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8423 states, 5484 states have (on average 1.3331509846827134) internal successors, (7311), 5759 states have internal predecessors, (7311), 1881 states have call successors, (1881), 1046 states have call predecessors, (1881), 1057 states have return successors, (1956), 1821 states have call predecessors, (1956), 1862 states have call successors, (1956) [2023-04-03 05:39:04,113 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8423 states to 8423 states and 11148 transitions. [2023-04-03 05:39:04,115 INFO L78 Accepts]: Start accepts. Automaton has 8423 states and 11148 transitions. Word has length 159 [2023-04-03 05:39:04,115 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-03 05:39:04,115 INFO L495 AbstractCegarLoop]: Abstraction has 8423 states and 11148 transitions. [2023-04-03 05:39:04,116 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 12.571428571428571) internal successors, (88), 6 states have internal predecessors, (88), 3 states have call successors, (29), 2 states have call predecessors, (29), 3 states have return successors, (24), 4 states have call predecessors, (24), 3 states have call successors, (24) [2023-04-03 05:39:04,116 INFO L276 IsEmpty]: Start isEmpty. Operand 8423 states and 11148 transitions. [2023-04-03 05:39:04,119 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 185 [2023-04-03 05:39:04,119 INFO L187 NwaCegarLoop]: Found error trace [2023-04-03 05:39:04,119 INFO L195 NwaCegarLoop]: trace histogram [4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-03 05:39:04,119 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2023-04-03 05:39:04,119 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-03 05:39:04,119 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-03 05:39:04,119 INFO L85 PathProgramCache]: Analyzing trace with hash 2038010751, now seen corresponding path program 1 times [2023-04-03 05:39:04,120 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-03 05:39:04,120 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [95486059] [2023-04-03 05:39:04,120 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-03 05:39:04,120 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-03 05:39:04,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-03 05:39:06,248 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 6 proven. 6 refuted. 0 times theorem prover too weak. 37 trivial. 0 not checked. [2023-04-03 05:39:06,248 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-03 05:39:06,248 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [95486059] [2023-04-03 05:39:06,248 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [95486059] provided 0 perfect and 1 imperfect interpolant sequences [2023-04-03 05:39:06,248 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1861968694] [2023-04-03 05:39:06,248 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-03 05:39:06,249 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-03 05:39:06,249 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-03 05:39:06,251 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-04-03 05:39:06,254 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-04-03 05:39:08,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-03 05:39:08,244 INFO L262 TraceCheckSpWp]: Trace formula consists of 14382 conjuncts, 5 conjunts are in the unsatisfiable core [2023-04-03 05:39:08,260 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-04-03 05:39:08,411 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 20 proven. 7 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2023-04-03 05:39:08,412 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-04-03 05:39:08,641 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 43 trivial. 0 not checked. [2023-04-03 05:39:08,641 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1861968694] provided 1 perfect and 1 imperfect interpolant sequences [2023-04-03 05:39:08,641 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2023-04-03 05:39:08,641 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [7, 4] total 10 [2023-04-03 05:39:08,642 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [775387081] [2023-04-03 05:39:08,642 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-03 05:39:08,642 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-04-03 05:39:08,642 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-03 05:39:08,642 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-04-03 05:39:08,643 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2023-04-03 05:39:08,643 INFO L87 Difference]: Start difference. First operand 8423 states and 11148 transitions. Second operand has 3 states, 3 states have (on average 33.666666666666664) internal successors, (101), 3 states have internal predecessors, (101), 3 states have call successors, (31), 2 states have call predecessors, (31), 1 states have return successors, (26), 3 states have call predecessors, (26), 3 states have call successors, (26) [2023-04-03 05:39:09,456 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-03 05:39:09,456 INFO L93 Difference]: Finished difference Result 19407 states and 25882 transitions. [2023-04-03 05:39:09,457 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-04-03 05:39:09,457 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 33.666666666666664) internal successors, (101), 3 states have internal predecessors, (101), 3 states have call successors, (31), 2 states have call predecessors, (31), 1 states have return successors, (26), 3 states have call predecessors, (26), 3 states have call successors, (26) Word has length 184 [2023-04-03 05:39:09,457 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-03 05:39:09,487 INFO L225 Difference]: With dead ends: 19407 [2023-04-03 05:39:09,487 INFO L226 Difference]: Without dead ends: 11147 [2023-04-03 05:39:09,505 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 374 GetRequests, 366 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2023-04-03 05:39:09,505 INFO L413 NwaCegarLoop]: 760 mSDtfsCounter, 851 mSDsluCounter, 695 mSDsCounter, 0 mSdLazyCounter, 227 mSolverCounterSat, 39 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 851 SdHoareTripleChecker+Valid, 1455 SdHoareTripleChecker+Invalid, 266 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 39 IncrementalHoareTripleChecker+Valid, 227 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-04-03 05:39:09,505 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [851 Valid, 1455 Invalid, 266 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [39 Valid, 227 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-04-03 05:39:09,512 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11147 states. [2023-04-03 05:39:09,886 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11147 to 11111. [2023-04-03 05:39:09,897 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11111 states, 7306 states have (on average 1.3542294004927458) internal successors, (9894), 7663 states have internal predecessors, (9894), 2439 states have call successors, (2439), 1347 states have call predecessors, (2439), 1365 states have return successors, (2546), 2371 states have call predecessors, (2546), 2421 states have call successors, (2546) [2023-04-03 05:39:09,922 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11111 states to 11111 states and 14879 transitions. [2023-04-03 05:39:09,926 INFO L78 Accepts]: Start accepts. Automaton has 11111 states and 14879 transitions. Word has length 184 [2023-04-03 05:39:09,927 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-03 05:39:09,927 INFO L495 AbstractCegarLoop]: Abstraction has 11111 states and 14879 transitions. [2023-04-03 05:39:09,927 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 33.666666666666664) internal successors, (101), 3 states have internal predecessors, (101), 3 states have call successors, (31), 2 states have call predecessors, (31), 1 states have return successors, (26), 3 states have call predecessors, (26), 3 states have call successors, (26) [2023-04-03 05:39:09,927 INFO L276 IsEmpty]: Start isEmpty. Operand 11111 states and 14879 transitions. [2023-04-03 05:39:09,930 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 184 [2023-04-03 05:39:09,930 INFO L187 NwaCegarLoop]: Found error trace [2023-04-03 05:39:09,930 INFO L195 NwaCegarLoop]: trace histogram [4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-03 05:39:09,962 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-04-03 05:39:10,157 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2023-04-03 05:39:10,158 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-03 05:39:10,158 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-03 05:39:10,158 INFO L85 PathProgramCache]: Analyzing trace with hash -1002661031, now seen corresponding path program 1 times [2023-04-03 05:39:10,158 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-03 05:39:10,158 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1585541384] [2023-04-03 05:39:10,158 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-03 05:39:10,158 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-03 05:39:10,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-03 05:39:12,286 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 6 proven. 6 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2023-04-03 05:39:12,286 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-03 05:39:12,286 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1585541384] [2023-04-03 05:39:12,286 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1585541384] provided 0 perfect and 1 imperfect interpolant sequences [2023-04-03 05:39:12,286 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [52857098] [2023-04-03 05:39:12,286 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-03 05:39:12,287 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-03 05:39:12,287 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-03 05:39:12,292 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-04-03 05:39:12,293 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-04-03 05:39:14,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-03 05:39:14,274 INFO L262 TraceCheckSpWp]: Trace formula consists of 14380 conjuncts, 12 conjunts are in the unsatisfiable core [2023-04-03 05:39:14,283 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-04-03 05:39:14,471 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 20 proven. 6 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2023-04-03 05:39:14,471 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-04-03 05:39:14,762 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2023-04-03 05:39:14,763 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [52857098] provided 1 perfect and 1 imperfect interpolant sequences [2023-04-03 05:39:14,763 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2023-04-03 05:39:14,763 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [7, 7] total 16 [2023-04-03 05:39:14,763 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [142305884] [2023-04-03 05:39:14,763 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-03 05:39:14,764 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-04-03 05:39:14,764 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-03 05:39:14,764 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-04-03 05:39:14,764 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=62, Invalid=178, Unknown=0, NotChecked=0, Total=240 [2023-04-03 05:39:14,764 INFO L87 Difference]: Start difference. First operand 11111 states and 14879 transitions. Second operand has 6 states, 6 states have (on average 16.833333333333332) internal successors, (101), 6 states have internal predecessors, (101), 3 states have call successors, (31), 2 states have call predecessors, (31), 1 states have return successors, (26), 3 states have call predecessors, (26), 3 states have call successors, (26) [2023-04-03 05:39:15,850 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-03 05:39:15,850 INFO L93 Difference]: Finished difference Result 25165 states and 33942 transitions. [2023-04-03 05:39:15,851 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-04-03 05:39:15,851 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 16.833333333333332) internal successors, (101), 6 states have internal predecessors, (101), 3 states have call successors, (31), 2 states have call predecessors, (31), 1 states have return successors, (26), 3 states have call predecessors, (26), 3 states have call successors, (26) Word has length 183 [2023-04-03 05:39:15,853 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-03 05:39:15,905 INFO L225 Difference]: With dead ends: 25165 [2023-04-03 05:39:15,906 INFO L226 Difference]: Without dead ends: 14217 [2023-04-03 05:39:15,936 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 373 GetRequests, 358 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2023-04-03 05:39:15,936 INFO L413 NwaCegarLoop]: 774 mSDtfsCounter, 986 mSDsluCounter, 2837 mSDsCounter, 0 mSdLazyCounter, 627 mSolverCounterSat, 54 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 997 SdHoareTripleChecker+Valid, 3611 SdHoareTripleChecker+Invalid, 681 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 54 IncrementalHoareTripleChecker+Valid, 627 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-04-03 05:39:15,936 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [997 Valid, 3611 Invalid, 681 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [54 Valid, 627 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-04-03 05:39:15,949 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14217 states. [2023-04-03 05:39:16,571 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14217 to 13795. [2023-04-03 05:39:16,584 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13795 states, 9126 states have (on average 1.3652202498356345) internal successors, (12459), 9565 states have internal predecessors, (12459), 2996 states have call successors, (2996), 1646 states have call predecessors, (2996), 1672 states have return successors, (3135), 2921 states have call predecessors, (3135), 2979 states have call successors, (3135) [2023-04-03 05:39:16,615 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13795 states to 13795 states and 18590 transitions. [2023-04-03 05:39:16,617 INFO L78 Accepts]: Start accepts. Automaton has 13795 states and 18590 transitions. Word has length 183 [2023-04-03 05:39:16,619 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-03 05:39:16,619 INFO L495 AbstractCegarLoop]: Abstraction has 13795 states and 18590 transitions. [2023-04-03 05:39:16,619 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 16.833333333333332) internal successors, (101), 6 states have internal predecessors, (101), 3 states have call successors, (31), 2 states have call predecessors, (31), 1 states have return successors, (26), 3 states have call predecessors, (26), 3 states have call successors, (26) [2023-04-03 05:39:16,619 INFO L276 IsEmpty]: Start isEmpty. Operand 13795 states and 18590 transitions. [2023-04-03 05:39:16,623 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 189 [2023-04-03 05:39:16,623 INFO L187 NwaCegarLoop]: Found error trace [2023-04-03 05:39:16,623 INFO L195 NwaCegarLoop]: trace histogram [4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 05:39:16,687 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-04-03 05:39:16,837 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2023-04-03 05:39:16,837 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-03 05:39:16,839 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-03 05:39:16,839 INFO L85 PathProgramCache]: Analyzing trace with hash 671624033, now seen corresponding path program 1 times [2023-04-03 05:39:16,839 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-03 05:39:16,839 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2105998010] [2023-04-03 05:39:16,839 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-03 05:39:16,839 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-03 05:39:17,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-03 05:39:19,228 INFO L134 CoverageAnalysis]: Checked inductivity of 53 backedges. 6 proven. 6 refuted. 0 times theorem prover too weak. 41 trivial. 0 not checked. [2023-04-03 05:39:19,228 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-03 05:39:19,228 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2105998010] [2023-04-03 05:39:19,228 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2105998010] provided 0 perfect and 1 imperfect interpolant sequences [2023-04-03 05:39:19,228 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [109321154] [2023-04-03 05:39:19,229 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-03 05:39:19,229 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-03 05:39:19,229 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-03 05:39:19,230 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-04-03 05:39:19,232 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-04-03 05:39:21,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-03 05:39:21,258 INFO L262 TraceCheckSpWp]: Trace formula consists of 14390 conjuncts, 5 conjunts are in the unsatisfiable core [2023-04-03 05:39:21,275 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-04-03 05:39:21,372 INFO L134 CoverageAnalysis]: Checked inductivity of 53 backedges. 20 proven. 11 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2023-04-03 05:39:21,372 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-04-03 05:39:21,647 INFO L134 CoverageAnalysis]: Checked inductivity of 53 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 47 trivial. 0 not checked. [2023-04-03 05:39:21,648 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [109321154] provided 1 perfect and 1 imperfect interpolant sequences [2023-04-03 05:39:21,648 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2023-04-03 05:39:21,648 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [7, 4] total 10 [2023-04-03 05:39:21,648 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1016313616] [2023-04-03 05:39:21,648 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-03 05:39:21,649 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-04-03 05:39:21,649 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-03 05:39:21,649 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-04-03 05:39:21,649 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2023-04-03 05:39:21,650 INFO L87 Difference]: Start difference. First operand 13795 states and 18590 transitions. Second operand has 3 states, 3 states have (on average 33.666666666666664) internal successors, (101), 3 states have internal predecessors, (101), 3 states have call successors, (31), 2 states have call predecessors, (31), 1 states have return successors, (26), 3 states have call predecessors, (26), 3 states have call successors, (26) [2023-04-03 05:39:22,682 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-03 05:39:22,683 INFO L93 Difference]: Finished difference Result 30087 states and 40676 transitions. [2023-04-03 05:39:22,683 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-04-03 05:39:22,683 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 33.666666666666664) internal successors, (101), 3 states have internal predecessors, (101), 3 states have call successors, (31), 2 states have call predecessors, (31), 1 states have return successors, (26), 3 states have call predecessors, (26), 3 states have call successors, (26) Word has length 188 [2023-04-03 05:39:22,684 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-03 05:39:22,743 INFO L225 Difference]: With dead ends: 30087 [2023-04-03 05:39:22,744 INFO L226 Difference]: Without dead ends: 16455 [2023-04-03 05:39:22,777 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 382 GetRequests, 374 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2023-04-03 05:39:22,777 INFO L413 NwaCegarLoop]: 760 mSDtfsCounter, 851 mSDsluCounter, 695 mSDsCounter, 0 mSdLazyCounter, 227 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 851 SdHoareTripleChecker+Valid, 1455 SdHoareTripleChecker+Invalid, 264 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 227 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-04-03 05:39:22,777 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [851 Valid, 1455 Invalid, 264 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [37 Valid, 227 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-04-03 05:39:22,792 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16455 states. [2023-04-03 05:39:23,516 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16455 to 16415. [2023-04-03 05:39:23,533 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16415 states, 10914 states have (on average 1.3719992669965182) internal successors, (14974), 11435 states have internal predecessors, (14974), 3533 states have call successors, (3533), 1929 states have call predecessors, (3533), 1967 states have return successors, (3704), 3455 states have call predecessors, (3704), 3517 states have call successors, (3704) [2023-04-03 05:39:23,576 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16415 states to 16415 states and 22211 transitions. [2023-04-03 05:39:23,579 INFO L78 Accepts]: Start accepts. Automaton has 16415 states and 22211 transitions. Word has length 188 [2023-04-03 05:39:23,580 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-03 05:39:23,580 INFO L495 AbstractCegarLoop]: Abstraction has 16415 states and 22211 transitions. [2023-04-03 05:39:23,580 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 33.666666666666664) internal successors, (101), 3 states have internal predecessors, (101), 3 states have call successors, (31), 2 states have call predecessors, (31), 1 states have return successors, (26), 3 states have call predecessors, (26), 3 states have call successors, (26) [2023-04-03 05:39:23,580 INFO L276 IsEmpty]: Start isEmpty. Operand 16415 states and 22211 transitions. [2023-04-03 05:39:23,585 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 202 [2023-04-03 05:39:23,585 INFO L187 NwaCegarLoop]: Found error trace [2023-04-03 05:39:23,585 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-03 05:39:23,621 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2023-04-03 05:39:23,786 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-03 05:39:23,787 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-03 05:39:23,788 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-03 05:39:23,788 INFO L85 PathProgramCache]: Analyzing trace with hash -1345756435, now seen corresponding path program 1 times [2023-04-03 05:39:23,788 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-03 05:39:23,788 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1100896360] [2023-04-03 05:39:23,788 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-03 05:39:23,788 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-03 05:39:23,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-03 05:39:26,064 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 9 proven. 6 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2023-04-03 05:39:26,064 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-03 05:39:26,064 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1100896360] [2023-04-03 05:39:26,064 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1100896360] provided 0 perfect and 1 imperfect interpolant sequences [2023-04-03 05:39:26,065 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [456239297] [2023-04-03 05:39:26,065 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-03 05:39:26,065 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-03 05:39:26,065 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-03 05:39:26,066 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-04-03 05:39:26,068 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-04-03 05:39:27,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-03 05:39:28,030 INFO L262 TraceCheckSpWp]: Trace formula consists of 14423 conjuncts, 12 conjunts are in the unsatisfiable core [2023-04-03 05:39:28,055 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-04-03 05:39:28,227 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 35 proven. 13 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2023-04-03 05:39:28,227 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-04-03 05:39:28,476 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 21 proven. 7 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2023-04-03 05:39:28,476 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [456239297] provided 0 perfect and 2 imperfect interpolant sequences [2023-04-03 05:39:28,477 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [992502069] [2023-04-03 05:39:28,498 INFO L159 IcfgInterpreter]: Started Sifa with 154 locations of interest [2023-04-03 05:39:28,498 INFO L166 IcfgInterpreter]: Building call graph [2023-04-03 05:39:28,500 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2023-04-03 05:39:28,504 INFO L176 IcfgInterpreter]: Starting interpretation [2023-04-03 05:39:28,504 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs