/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Overflow-32bit-Automizer_Default.epf -i ../sv-benchmarks/c/ldv-linux-3.16-rc1/43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-sound--drivers--snd-serial-u16550.ko-entry_point.cil.out.i -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-05d3305-m [2022-10-16 13:27:36,789 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-10-16 13:27:36,792 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-10-16 13:27:36,847 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-10-16 13:27:36,848 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-10-16 13:27:36,850 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-10-16 13:27:36,852 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-10-16 13:27:36,854 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-10-16 13:27:36,857 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-10-16 13:27:36,858 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-10-16 13:27:36,860 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-10-16 13:27:36,861 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-10-16 13:27:36,862 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-10-16 13:27:36,864 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-10-16 13:27:36,865 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-10-16 13:27:36,867 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-10-16 13:27:36,868 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-10-16 13:27:36,869 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-10-16 13:27:36,872 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-10-16 13:27:36,874 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-10-16 13:27:36,876 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-10-16 13:27:36,878 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-10-16 13:27:36,883 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-10-16 13:27:36,884 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-10-16 13:27:36,894 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-10-16 13:27:36,894 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-10-16 13:27:36,895 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-10-16 13:27:36,898 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-10-16 13:27:36,899 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-10-16 13:27:36,901 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-10-16 13:27:36,901 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-10-16 13:27:36,902 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-10-16 13:27:36,904 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-10-16 13:27:36,909 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-10-16 13:27:36,911 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-10-16 13:27:36,911 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-10-16 13:27:36,912 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-10-16 13:27:36,913 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-10-16 13:27:36,913 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-10-16 13:27:36,914 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-10-16 13:27:36,916 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-10-16 13:27:36,917 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Overflow-32bit-Automizer_Default.epf [2022-10-16 13:27:36,979 INFO L113 SettingsManager]: Loading preferences was successful [2022-10-16 13:27:36,980 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-10-16 13:27:36,981 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-10-16 13:27:36,981 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-10-16 13:27:36,983 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-10-16 13:27:36,983 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-10-16 13:27:36,986 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-10-16 13:27:36,986 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-10-16 13:27:36,986 INFO L138 SettingsManager]: * Use SBE=true [2022-10-16 13:27:36,987 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-10-16 13:27:36,988 INFO L138 SettingsManager]: * sizeof long=4 [2022-10-16 13:27:36,988 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-10-16 13:27:36,989 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-10-16 13:27:36,989 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-10-16 13:27:36,989 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-10-16 13:27:36,990 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-10-16 13:27:36,990 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-10-16 13:27:36,990 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-10-16 13:27:36,990 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-10-16 13:27:36,991 INFO L138 SettingsManager]: * sizeof long double=12 [2022-10-16 13:27:36,991 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-10-16 13:27:36,991 INFO L138 SettingsManager]: * Use constant arrays=true [2022-10-16 13:27:36,991 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-10-16 13:27:36,992 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-10-16 13:27:36,992 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-10-16 13:27:36,992 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-10-16 13:27:36,993 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-16 13:27:36,993 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-10-16 13:27:36,993 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-10-16 13:27:36,993 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-10-16 13:27:36,994 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-10-16 13:27:36,994 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-10-16 13:27:36,995 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-10-16 13:27:36,995 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-10-16 13:27:37,479 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-10-16 13:27:37,527 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-10-16 13:27:37,531 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-10-16 13:27:37,532 INFO L271 PluginConnector]: Initializing CDTParser... [2022-10-16 13:27:37,534 INFO L275 PluginConnector]: CDTParser initialized [2022-10-16 13:27:37,537 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-linux-3.16-rc1/43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-sound--drivers--snd-serial-u16550.ko-entry_point.cil.out.i [2022-10-16 13:27:37,632 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f00ec17f9/6f138ef120e441a5a83f2a410f2624ee/FLAG243de0e54 [2022-10-16 13:27:38,617 INFO L306 CDTParser]: Found 1 translation units. [2022-10-16 13:27:38,618 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.16-rc1/43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-sound--drivers--snd-serial-u16550.ko-entry_point.cil.out.i [2022-10-16 13:27:38,667 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f00ec17f9/6f138ef120e441a5a83f2a410f2624ee/FLAG243de0e54 [2022-10-16 13:27:39,164 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f00ec17f9/6f138ef120e441a5a83f2a410f2624ee [2022-10-16 13:27:39,170 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-10-16 13:27:39,177 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-10-16 13:27:39,181 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-10-16 13:27:39,181 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-10-16 13:27:39,186 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-10-16 13:27:39,187 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 01:27:39" (1/1) ... [2022-10-16 13:27:39,189 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@62be9860 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:27:39, skipping insertion in model container [2022-10-16 13:27:39,189 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 01:27:39" (1/1) ... [2022-10-16 13:27:39,198 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-10-16 13:27:39,314 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-10-16 13:27:39,792 WARN L1251 CHandler]: Detected problem Invalid redeclaration of the name show at C: (*show)(struct kobject___0 * , struct attribute___0 * , char * ) [2482] [2022-10-16 13:27:39,793 WARN L1251 CHandler]: Detected problem Invalid redeclaration of the name store at C: (*store)(struct kobject___0 * , struct attribute___0 * , char const * , size_t ) [2483-2484] [2022-10-16 13:27:39,936 WARN L230 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-3.16-rc1/43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-sound--drivers--snd-serial-u16550.ko-entry_point.cil.out.i[72349,72362] [2022-10-16 13:27:40,453 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-16 13:27:40,501 INFO L203 MainTranslator]: Completed pre-run [2022-10-16 13:27:40,568 WARN L1251 CHandler]: Detected problem Invalid redeclaration of the name show at C: (*show)(struct kobject___0 * , struct attribute___0 * , char * ) [2482] [2022-10-16 13:27:40,568 WARN L1251 CHandler]: Detected problem Invalid redeclaration of the name store at C: (*store)(struct kobject___0 * , struct attribute___0 * , char const * , size_t ) [2483-2484] [2022-10-16 13:27:40,577 WARN L230 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-3.16-rc1/43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-sound--drivers--snd-serial-u16550.ko-entry_point.cil.out.i[72349,72362] [2022-10-16 13:27:40,725 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-16 13:27:40,815 INFO L208 MainTranslator]: Completed translation [2022-10-16 13:27:40,816 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:27:40 WrapperNode [2022-10-16 13:27:40,816 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-10-16 13:27:40,817 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-10-16 13:27:40,818 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-10-16 13:27:40,818 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-10-16 13:27:40,827 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:27:40" (1/1) ... [2022-10-16 13:27:40,918 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:27:40" (1/1) ... [2022-10-16 13:27:41,056 INFO L138 Inliner]: procedures = 142, calls = 996, calls flagged for inlining = 73, calls inlined = 71, statements flattened = 2026 [2022-10-16 13:27:41,056 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-10-16 13:27:41,058 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-10-16 13:27:41,058 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-10-16 13:27:41,058 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-10-16 13:27:41,070 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:27:40" (1/1) ... [2022-10-16 13:27:41,070 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:27:40" (1/1) ... [2022-10-16 13:27:41,110 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:27:40" (1/1) ... [2022-10-16 13:27:41,111 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:27:40" (1/1) ... [2022-10-16 13:27:41,235 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:27:40" (1/1) ... [2022-10-16 13:27:41,267 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:27:40" (1/1) ... [2022-10-16 13:27:41,293 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:27:40" (1/1) ... [2022-10-16 13:27:41,316 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:27:40" (1/1) ... [2022-10-16 13:27:41,346 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-10-16 13:27:41,347 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-10-16 13:27:41,347 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-10-16 13:27:41,347 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-10-16 13:27:41,350 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:27:40" (1/1) ... [2022-10-16 13:27:41,358 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-16 13:27:41,372 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 13:27:41,397 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) [2022-10-16 13:27:41,462 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 [2022-10-16 13:27:41,523 INFO L130 BoogieDeclarations]: Found specification of procedure snd_uart16550_free [2022-10-16 13:27:41,523 INFO L138 BoogieDeclarations]: Found implementation of procedure snd_uart16550_free [2022-10-16 13:27:41,524 INFO L130 BoogieDeclarations]: Found specification of procedure snd_uart16550_do_close [2022-10-16 13:27:41,524 INFO L138 BoogieDeclarations]: Found implementation of procedure snd_uart16550_do_close [2022-10-16 13:27:41,524 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-10-16 13:27:41,525 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_strcpy [2022-10-16 13:27:41,526 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_strcpy [2022-10-16 13:27:41,526 INFO L130 BoogieDeclarations]: Found specification of procedure snd_uart16550_add_timer [2022-10-16 13:27:41,526 INFO L138 BoogieDeclarations]: Found implementation of procedure snd_uart16550_add_timer [2022-10-16 13:27:41,526 INFO L130 BoogieDeclarations]: Found specification of procedure snd_uart16550_io_loop [2022-10-16 13:27:41,526 INFO L138 BoogieDeclarations]: Found implementation of procedure snd_uart16550_io_loop [2022-10-16 13:27:41,527 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-10-16 13:27:41,527 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-10-16 13:27:41,527 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-10-16 13:27:41,527 INFO L130 BoogieDeclarations]: Found specification of procedure snd_uart16550_del_timer [2022-10-16 13:27:41,527 INFO L138 BoogieDeclarations]: Found implementation of procedure snd_uart16550_del_timer [2022-10-16 13:27:41,527 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock [2022-10-16 13:27:41,527 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock [2022-10-16 13:27:41,528 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-10-16 13:27:41,528 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-10-16 13:27:41,528 INFO L130 BoogieDeclarations]: Found specification of procedure snd_uart16550_buffer_output [2022-10-16 13:27:41,528 INFO L138 BoogieDeclarations]: Found implementation of procedure snd_uart16550_buffer_output [2022-10-16 13:27:41,528 INFO L130 BoogieDeclarations]: Found specification of procedure snd_uart16550_substreams [2022-10-16 13:27:41,528 INFO L138 BoogieDeclarations]: Found implementation of procedure snd_uart16550_substreams [2022-10-16 13:27:41,528 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-10-16 13:27:41,529 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2022-10-16 13:27:41,529 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2022-10-16 13:27:41,529 INFO L130 BoogieDeclarations]: Found specification of procedure snd_uart16550_output_trigger [2022-10-16 13:27:41,529 INFO L138 BoogieDeclarations]: Found implementation of procedure snd_uart16550_output_trigger [2022-10-16 13:27:41,529 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-10-16 13:27:41,529 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-10-16 13:27:41,529 INFO L130 BoogieDeclarations]: Found specification of procedure snd_uart16550_do_open [2022-10-16 13:27:41,529 INFO L138 BoogieDeclarations]: Found implementation of procedure snd_uart16550_do_open [2022-10-16 13:27:41,530 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-10-16 13:27:41,530 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-10-16 13:27:41,530 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-10-16 13:27:41,530 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-10-16 13:27:41,530 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_irq_1 [2022-10-16 13:27:41,530 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_irq_1 [2022-10-16 13:27:41,530 INFO L130 BoogieDeclarations]: Found specification of procedure reg_timer_2 [2022-10-16 13:27:41,530 INFO L138 BoogieDeclarations]: Found implementation of procedure reg_timer_2 [2022-10-16 13:27:41,531 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-10-16 13:27:41,531 INFO L130 BoogieDeclarations]: Found specification of procedure snd_serial_unregister_all [2022-10-16 13:27:41,531 INFO L138 BoogieDeclarations]: Found implementation of procedure snd_serial_unregister_all [2022-10-16 13:27:41,531 INFO L130 BoogieDeclarations]: Found specification of procedure snd_uart16550_output_byte [2022-10-16 13:27:41,531 INFO L138 BoogieDeclarations]: Found implementation of procedure snd_uart16550_output_byte [2022-10-16 13:27:41,532 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock [2022-10-16 13:27:41,532 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock [2022-10-16 13:27:41,532 INFO L130 BoogieDeclarations]: Found specification of procedure platform_device_unregister [2022-10-16 13:27:41,533 INFO L138 BoogieDeclarations]: Found implementation of procedure platform_device_unregister [2022-10-16 13:27:41,533 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2022-10-16 13:27:41,534 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2022-10-16 13:27:41,534 INFO L130 BoogieDeclarations]: Found specification of procedure snd_rawmidi_receive [2022-10-16 13:27:41,534 INFO L138 BoogieDeclarations]: Found implementation of procedure snd_rawmidi_receive [2022-10-16 13:27:41,535 INFO L130 BoogieDeclarations]: Found specification of procedure snd_uart16550_input_trigger [2022-10-16 13:27:41,535 INFO L138 BoogieDeclarations]: Found implementation of procedure snd_uart16550_input_trigger [2022-10-16 13:27:41,535 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-10-16 13:27:41,536 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-10-16 13:27:41,537 INFO L130 BoogieDeclarations]: Found specification of procedure snd_card_free [2022-10-16 13:27:41,537 INFO L138 BoogieDeclarations]: Found implementation of procedure snd_card_free [2022-10-16 13:27:41,538 INFO L130 BoogieDeclarations]: Found specification of procedure platform_get_drvdata [2022-10-16 13:27:41,538 INFO L138 BoogieDeclarations]: Found implementation of procedure platform_get_drvdata [2022-10-16 13:27:41,538 INFO L130 BoogieDeclarations]: Found specification of procedure inb [2022-10-16 13:27:41,539 INFO L138 BoogieDeclarations]: Found implementation of procedure inb [2022-10-16 13:27:41,540 INFO L130 BoogieDeclarations]: Found specification of procedure outb [2022-10-16 13:27:41,540 INFO L138 BoogieDeclarations]: Found implementation of procedure outb [2022-10-16 13:27:41,540 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2022-10-16 13:27:41,540 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2022-10-16 13:27:41,544 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-10-16 13:27:41,544 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2022-10-16 13:27:41,544 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2022-10-16 13:27:41,545 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-10-16 13:27:41,545 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-10-16 13:27:41,545 INFO L130 BoogieDeclarations]: Found specification of procedure snd_rawmidi_set_ops [2022-10-16 13:27:41,546 INFO L138 BoogieDeclarations]: Found implementation of procedure snd_rawmidi_set_ops [2022-10-16 13:27:41,546 INFO L130 BoogieDeclarations]: Found specification of procedure snd_uart16550_write_buffer [2022-10-16 13:27:41,547 INFO L138 BoogieDeclarations]: Found implementation of procedure snd_uart16550_write_buffer [2022-10-16 13:27:41,547 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2022-10-16 13:27:41,547 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2022-10-16 13:27:42,131 INFO L235 CfgBuilder]: Building ICFG [2022-10-16 13:27:42,135 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-10-16 13:27:42,671 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-10-16 13:27:44,590 INFO L276 CfgBuilder]: Performing block encoding [2022-10-16 13:27:44,607 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-10-16 13:27:44,607 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-10-16 13:27:44,611 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 01:27:44 BoogieIcfgContainer [2022-10-16 13:27:44,611 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-10-16 13:27:44,614 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-10-16 13:27:44,614 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-10-16 13:27:44,618 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-10-16 13:27:44,619 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.10 01:27:39" (1/3) ... [2022-10-16 13:27:44,620 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@816a238 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 01:27:44, skipping insertion in model container [2022-10-16 13:27:44,620 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:27:40" (2/3) ... [2022-10-16 13:27:44,620 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@816a238 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 01:27:44, skipping insertion in model container [2022-10-16 13:27:44,621 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 01:27:44" (3/3) ... [2022-10-16 13:27:44,622 INFO L112 eAbstractionObserver]: Analyzing ICFG 43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-sound--drivers--snd-serial-u16550.ko-entry_point.cil.out.i [2022-10-16 13:27:44,646 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-10-16 13:27:44,647 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 38 error locations. [2022-10-16 13:27:44,750 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-10-16 13:27:44,772 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;@55d975ad, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-10-16 13:27:44,772 INFO L358 AbstractCegarLoop]: Starting to check reachability of 38 error locations. [2022-10-16 13:27:44,785 INFO L276 IsEmpty]: Start isEmpty. Operand has 735 states, 531 states have (on average 1.4425612052730696) internal successors, (766), 587 states have internal predecessors, (766), 133 states have call successors, (133), 33 states have call predecessors, (133), 32 states have return successors, (126), 126 states have call predecessors, (126), 126 states have call successors, (126) [2022-10-16 13:27:44,818 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2022-10-16 13:27:44,820 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 13:27:44,821 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 13:27:44,822 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [snd_uart16550_io_loopErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, snd_uart16550_io_loopErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, snd_uart16550_output_triggerErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 35 more)] === [2022-10-16 13:27:44,828 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 13:27:44,829 INFO L85 PathProgramCache]: Analyzing trace with hash -1357581304, now seen corresponding path program 1 times [2022-10-16 13:27:44,843 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 13:27:44,843 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [367972834] [2022-10-16 13:27:44,844 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 13:27:44,844 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 13:27:45,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:27:45,587 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 13:27:45,588 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 13:27:45,589 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [367972834] [2022-10-16 13:27:45,591 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [367972834] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 13:27:45,593 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 13:27:45,594 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-16 13:27:45,597 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1882633715] [2022-10-16 13:27:45,601 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 13:27:45,614 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-16 13:27:45,615 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 13:27:45,660 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-16 13:27:45,661 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-16 13:27:45,667 INFO L87 Difference]: Start difference. First operand has 735 states, 531 states have (on average 1.4425612052730696) internal successors, (766), 587 states have internal predecessors, (766), 133 states have call successors, (133), 33 states have call predecessors, (133), 32 states have return successors, (126), 126 states have call predecessors, (126), 126 states have call successors, (126) Second operand has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 13:27:46,095 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 13:27:46,095 INFO L93 Difference]: Finished difference Result 1968 states and 2823 transitions. [2022-10-16 13:27:46,097 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-16 13:27:46,099 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), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 18 [2022-10-16 13:27:46,100 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 13:27:46,145 INFO L225 Difference]: With dead ends: 1968 [2022-10-16 13:27:46,146 INFO L226 Difference]: Without dead ends: 1207 [2022-10-16 13:27:46,167 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 [2022-10-16 13:27:46,172 INFO L413 NwaCegarLoop]: 1201 mSDtfsCounter, 709 mSDsluCounter, 989 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 709 SdHoareTripleChecker+Valid, 2190 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 13:27:46,173 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [709 Valid, 2190 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 13:27:46,199 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1207 states. [2022-10-16 13:27:46,381 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1207 to 1184. [2022-10-16 13:27:46,387 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1184 states, 880 states have (on average 1.4034090909090908) internal successors, (1235), 931 states have internal predecessors, (1235), 219 states have call successors, (219), 54 states have call predecessors, (219), 53 states have return successors, (217), 217 states have call predecessors, (217), 217 states have call successors, (217) [2022-10-16 13:27:46,404 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1184 states to 1184 states and 1671 transitions. [2022-10-16 13:27:46,408 INFO L78 Accepts]: Start accepts. Automaton has 1184 states and 1671 transitions. Word has length 18 [2022-10-16 13:27:46,408 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 13:27:46,409 INFO L495 AbstractCegarLoop]: Abstraction has 1184 states and 1671 transitions. [2022-10-16 13:27:46,409 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), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 13:27:46,410 INFO L276 IsEmpty]: Start isEmpty. Operand 1184 states and 1671 transitions. [2022-10-16 13:27:46,415 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2022-10-16 13:27:46,415 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 13:27:46,416 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] [2022-10-16 13:27:46,416 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-10-16 13:27:46,416 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting snd_serial_unregister_allErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [snd_uart16550_io_loopErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, snd_uart16550_io_loopErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, snd_uart16550_output_triggerErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 35 more)] === [2022-10-16 13:27:46,417 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 13:27:46,417 INFO L85 PathProgramCache]: Analyzing trace with hash 1354544776, now seen corresponding path program 1 times [2022-10-16 13:27:46,418 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 13:27:46,418 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [49651365] [2022-10-16 13:27:46,418 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 13:27:46,418 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 13:27:46,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:27:46,764 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-10-16 13:27:46,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:27:46,772 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 13:27:46,772 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 13:27:46,773 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [49651365] [2022-10-16 13:27:46,773 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [49651365] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 13:27:46,773 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 13:27:46,773 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-16 13:27:46,774 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1299911859] [2022-10-16 13:27:46,774 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 13:27:46,776 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-16 13:27:46,776 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 13:27:46,777 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-16 13:27:46,777 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-16 13:27:46,778 INFO L87 Difference]: Start difference. First operand 1184 states and 1671 transitions. Second operand has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 states have internal predecessors, (17), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-10-16 13:27:47,031 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 13:27:47,031 INFO L93 Difference]: Finished difference Result 3467 states and 4907 transitions. [2022-10-16 13:27:47,031 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-16 13:27:47,032 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 states have internal predecessors, (17), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 20 [2022-10-16 13:27:47,032 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 13:27:47,049 INFO L225 Difference]: With dead ends: 3467 [2022-10-16 13:27:47,049 INFO L226 Difference]: Without dead ends: 2282 [2022-10-16 13:27:47,055 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-16 13:27:47,057 INFO L413 NwaCegarLoop]: 1110 mSDtfsCounter, 962 mSDsluCounter, 928 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 962 SdHoareTripleChecker+Valid, 2038 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 13:27:47,057 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [962 Valid, 2038 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 13:27:47,062 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2282 states. [2022-10-16 13:27:47,188 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2282 to 2242. [2022-10-16 13:27:47,194 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2242 states, 1690 states have (on average 1.4059171597633136) internal successors, (2376), 1758 states have internal predecessors, (2376), 420 states have call successors, (420), 101 states have call predecessors, (420), 100 states have return successors, (419), 419 states have call predecessors, (419), 419 states have call successors, (419) [2022-10-16 13:27:47,216 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2242 states to 2242 states and 3215 transitions. [2022-10-16 13:27:47,217 INFO L78 Accepts]: Start accepts. Automaton has 2242 states and 3215 transitions. Word has length 20 [2022-10-16 13:27:47,218 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 13:27:47,218 INFO L495 AbstractCegarLoop]: Abstraction has 2242 states and 3215 transitions. [2022-10-16 13:27:47,218 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 states have internal predecessors, (17), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-10-16 13:27:47,218 INFO L276 IsEmpty]: Start isEmpty. Operand 2242 states and 3215 transitions. [2022-10-16 13:27:47,221 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-10-16 13:27:47,221 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 13:27:47,221 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] [2022-10-16 13:27:47,221 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-10-16 13:27:47,222 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [snd_uart16550_io_loopErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, snd_uart16550_io_loopErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, snd_uart16550_output_triggerErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 35 more)] === [2022-10-16 13:27:47,222 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 13:27:47,223 INFO L85 PathProgramCache]: Analyzing trace with hash 1786719176, now seen corresponding path program 1 times [2022-10-16 13:27:47,223 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 13:27:47,223 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1118071956] [2022-10-16 13:27:47,223 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 13:27:47,224 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 13:27:47,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:27:47,495 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-10-16 13:27:47,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:27:47,505 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 13:27:47,506 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 13:27:47,506 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1118071956] [2022-10-16 13:27:47,506 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1118071956] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 13:27:47,507 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 13:27:47,507 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-16 13:27:47,507 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1551606747] [2022-10-16 13:27:47,507 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 13:27:47,508 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 13:27:47,508 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 13:27:47,508 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 13:27:47,509 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-16 13:27:47,509 INFO L87 Difference]: Start difference. First operand 2242 states and 3215 transitions. Second operand has 4 states, 3 states have (on average 7.666666666666667) internal successors, (23), 3 states have internal predecessors, (23), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-10-16 13:27:49,467 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 13:27:49,467 INFO L93 Difference]: Finished difference Result 4698 states and 6770 transitions. [2022-10-16 13:27:49,468 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-16 13:27:49,468 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 7.666666666666667) internal successors, (23), 3 states have internal predecessors, (23), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 25 [2022-10-16 13:27:49,469 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 13:27:49,490 INFO L225 Difference]: With dead ends: 4698 [2022-10-16 13:27:49,490 INFO L226 Difference]: Without dead ends: 2459 [2022-10-16 13:27:49,502 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-16 13:27:49,503 INFO L413 NwaCegarLoop]: 924 mSDtfsCounter, 193 mSDsluCounter, 1066 mSDsCounter, 0 mSdLazyCounter, 721 mSolverCounterSat, 142 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 218 SdHoareTripleChecker+Valid, 1990 SdHoareTripleChecker+Invalid, 863 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 142 IncrementalHoareTripleChecker+Valid, 721 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2022-10-16 13:27:49,504 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [218 Valid, 1990 Invalid, 863 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [142 Valid, 721 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2022-10-16 13:27:49,509 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2459 states. [2022-10-16 13:27:49,677 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2459 to 2261. [2022-10-16 13:27:49,683 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2261 states, 1705 states have (on average 1.4052785923753666) internal successors, (2396), 1774 states have internal predecessors, (2396), 424 states have call successors, (424), 101 states have call predecessors, (424), 100 states have return successors, (423), 423 states have call predecessors, (423), 423 states have call successors, (423) [2022-10-16 13:27:49,702 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2261 states to 2261 states and 3243 transitions. [2022-10-16 13:27:49,703 INFO L78 Accepts]: Start accepts. Automaton has 2261 states and 3243 transitions. Word has length 25 [2022-10-16 13:27:49,703 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 13:27:49,703 INFO L495 AbstractCegarLoop]: Abstraction has 2261 states and 3243 transitions. [2022-10-16 13:27:49,704 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 7.666666666666667) internal successors, (23), 3 states have internal predecessors, (23), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-10-16 13:27:49,704 INFO L276 IsEmpty]: Start isEmpty. Operand 2261 states and 3243 transitions. [2022-10-16 13:27:49,706 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2022-10-16 13:27:49,706 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 13:27:49,707 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] [2022-10-16 13:27:49,707 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-10-16 13:27:49,707 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [snd_uart16550_io_loopErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, snd_uart16550_io_loopErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, snd_uart16550_output_triggerErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 35 more)] === [2022-10-16 13:27:49,708 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 13:27:49,708 INFO L85 PathProgramCache]: Analyzing trace with hash 1451317456, now seen corresponding path program 1 times [2022-10-16 13:27:49,708 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 13:27:49,709 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1235691048] [2022-10-16 13:27:49,709 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 13:27:49,709 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 13:27:49,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:27:49,868 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-10-16 13:27:49,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:27:49,875 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-10-16 13:27:49,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:27:49,885 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 13:27:49,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:27:49,890 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 13:27:49,891 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 13:27:49,891 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1235691048] [2022-10-16 13:27:49,891 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1235691048] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 13:27:49,891 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 13:27:49,892 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-10-16 13:27:49,892 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1655288527] [2022-10-16 13:27:49,892 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 13:27:49,892 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 13:27:49,893 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 13:27:49,893 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 13:27:49,893 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-16 13:27:49,894 INFO L87 Difference]: Start difference. First operand 2261 states and 3243 transitions. Second operand has 4 states, 4 states have (on average 6.0) internal successors, (24), 3 states have internal predecessors, (24), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2022-10-16 13:27:51,567 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 13:27:51,567 INFO L93 Difference]: Finished difference Result 6623 states and 9495 transitions. [2022-10-16 13:27:51,568 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-16 13:27:51,568 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 6.0) internal successors, (24), 3 states have internal predecessors, (24), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 30 [2022-10-16 13:27:51,568 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 13:27:51,605 INFO L225 Difference]: With dead ends: 6623 [2022-10-16 13:27:51,606 INFO L226 Difference]: Without dead ends: 4365 [2022-10-16 13:27:51,621 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-10-16 13:27:51,622 INFO L413 NwaCegarLoop]: 1115 mSDtfsCounter, 1295 mSDsluCounter, 991 mSDsCounter, 0 mSdLazyCounter, 666 mSolverCounterSat, 361 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1391 SdHoareTripleChecker+Valid, 2106 SdHoareTripleChecker+Invalid, 1027 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 361 IncrementalHoareTripleChecker+Valid, 666 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2022-10-16 13:27:51,623 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1391 Valid, 2106 Invalid, 1027 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [361 Valid, 666 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2022-10-16 13:27:51,631 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4365 states. [2022-10-16 13:27:51,926 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4365 to 4306. [2022-10-16 13:27:51,937 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4306 states, 3275 states have (on average 1.4006106870229007) internal successors, (4587), 3376 states have internal predecessors, (4587), 804 states have call successors, (804), 196 states have call predecessors, (804), 195 states have return successors, (803), 801 states have call predecessors, (803), 803 states have call successors, (803) [2022-10-16 13:27:52,021 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4306 states to 4306 states and 6194 transitions. [2022-10-16 13:27:52,022 INFO L78 Accepts]: Start accepts. Automaton has 4306 states and 6194 transitions. Word has length 30 [2022-10-16 13:27:52,022 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 13:27:52,023 INFO L495 AbstractCegarLoop]: Abstraction has 4306 states and 6194 transitions. [2022-10-16 13:27:52,023 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 6.0) internal successors, (24), 3 states have internal predecessors, (24), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2022-10-16 13:27:52,023 INFO L276 IsEmpty]: Start isEmpty. Operand 4306 states and 6194 transitions. [2022-10-16 13:27:52,025 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2022-10-16 13:27:52,025 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 13:27:52,025 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] [2022-10-16 13:27:52,026 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-10-16 13:27:52,026 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [snd_uart16550_io_loopErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, snd_uart16550_io_loopErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, snd_uart16550_output_triggerErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 35 more)] === [2022-10-16 13:27:52,027 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 13:27:52,027 INFO L85 PathProgramCache]: Analyzing trace with hash 1079249005, now seen corresponding path program 1 times [2022-10-16 13:27:52,027 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 13:27:52,027 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1360798344] [2022-10-16 13:27:52,028 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 13:27:52,028 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 13:27:52,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:27:52,220 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-10-16 13:27:52,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:27:52,228 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-10-16 13:27:52,228 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 13:27:52,229 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1360798344] [2022-10-16 13:27:52,229 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1360798344] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 13:27:52,229 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 13:27:52,229 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-16 13:27:52,229 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [605251323] [2022-10-16 13:27:52,230 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 13:27:52,230 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 13:27:52,230 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 13:27:52,231 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 13:27:52,231 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-16 13:27:52,231 INFO L87 Difference]: Start difference. First operand 4306 states and 6194 transitions. Second operand has 4 states, 3 states have (on average 9.333333333333334) internal successors, (28), 3 states have internal predecessors, (28), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-10-16 13:27:53,888 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 13:27:53,889 INFO L93 Difference]: Finished difference Result 4698 states and 6812 transitions. [2022-10-16 13:27:53,889 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-16 13:27:53,890 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 9.333333333333334) internal successors, (28), 3 states have internal predecessors, (28), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 30 [2022-10-16 13:27:53,890 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 13:27:53,929 INFO L225 Difference]: With dead ends: 4698 [2022-10-16 13:27:53,929 INFO L226 Difference]: Without dead ends: 4697 [2022-10-16 13:27:53,932 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-16 13:27:53,938 INFO L413 NwaCegarLoop]: 919 mSDtfsCounter, 194 mSDsluCounter, 1052 mSDsCounter, 0 mSdLazyCounter, 708 mSolverCounterSat, 137 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 219 SdHoareTripleChecker+Valid, 1971 SdHoareTripleChecker+Invalid, 845 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 137 IncrementalHoareTripleChecker+Valid, 708 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2022-10-16 13:27:53,939 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [219 Valid, 1971 Invalid, 845 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [137 Valid, 708 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2022-10-16 13:27:53,947 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4697 states. [2022-10-16 13:27:54,220 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4697 to 4305. [2022-10-16 13:27:54,237 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4305 states, 3275 states have (on average 1.4) internal successors, (4585), 3375 states have internal predecessors, (4585), 804 states have call successors, (804), 196 states have call predecessors, (804), 195 states have return successors, (803), 801 states have call predecessors, (803), 803 states have call successors, (803) [2022-10-16 13:27:54,262 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4305 states to 4305 states and 6192 transitions. [2022-10-16 13:27:54,263 INFO L78 Accepts]: Start accepts. Automaton has 4305 states and 6192 transitions. Word has length 30 [2022-10-16 13:27:54,264 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 13:27:54,264 INFO L495 AbstractCegarLoop]: Abstraction has 4305 states and 6192 transitions. [2022-10-16 13:27:54,264 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 9.333333333333334) internal successors, (28), 3 states have internal predecessors, (28), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-10-16 13:27:54,264 INFO L276 IsEmpty]: Start isEmpty. Operand 4305 states and 6192 transitions. [2022-10-16 13:27:54,269 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-10-16 13:27:54,269 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 13:27:54,269 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-10-16 13:27:54,270 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-10-16 13:27:54,270 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [snd_uart16550_io_loopErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, snd_uart16550_io_loopErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, snd_uart16550_output_triggerErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 35 more)] === [2022-10-16 13:27:54,282 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 13:27:54,282 INFO L85 PathProgramCache]: Analyzing trace with hash -903018127, now seen corresponding path program 1 times [2022-10-16 13:27:54,282 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 13:27:54,282 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1437319494] [2022-10-16 13:27:54,283 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 13:27:54,283 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 13:27:54,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:27:54,579 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-10-16 13:27:54,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:27:54,593 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 13:27:54,594 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 13:27:54,594 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1437319494] [2022-10-16 13:27:54,594 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1437319494] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 13:27:54,594 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1856218477] [2022-10-16 13:27:54,595 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 13:27:54,595 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 13:27:54,595 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 13:27:54,597 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) [2022-10-16 13:27:54,624 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-10-16 13:27:55,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:27:55,081 INFO L263 TraceCheckSpWp]: Trace formula consists of 1423 conjuncts, 3 conjunts are in the unsatisfiable core [2022-10-16 13:27:55,090 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 13:27:55,289 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 13:27:55,289 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-16 13:27:55,290 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1856218477] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 13:27:55,290 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-16 13:27:55,290 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 5 [2022-10-16 13:27:55,290 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [443744390] [2022-10-16 13:27:55,290 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 13:27:55,291 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 13:27:55,291 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 13:27:55,291 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 13:27:55,292 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-10-16 13:27:55,292 INFO L87 Difference]: Start difference. First operand 4305 states and 6192 transitions. Second operand has 4 states, 3 states have (on average 9.666666666666666) internal successors, (29), 4 states have internal predecessors, (29), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-10-16 13:27:55,677 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 13:27:55,677 INFO L93 Difference]: Finished difference Result 5579 states and 8213 transitions. [2022-10-16 13:27:55,678 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-16 13:27:55,678 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 9.666666666666666) internal successors, (29), 4 states have internal predecessors, (29), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 31 [2022-10-16 13:27:55,678 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 13:27:55,720 INFO L225 Difference]: With dead ends: 5579 [2022-10-16 13:27:55,720 INFO L226 Difference]: Without dead ends: 5578 [2022-10-16 13:27:55,725 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-10-16 13:27:55,726 INFO L413 NwaCegarLoop]: 1372 mSDtfsCounter, 327 mSDsluCounter, 2018 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 384 SdHoareTripleChecker+Valid, 3390 SdHoareTripleChecker+Invalid, 28 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-10-16 13:27:55,727 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [384 Valid, 3390 Invalid, 28 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-10-16 13:27:55,735 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5578 states. [2022-10-16 13:27:56,010 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5578 to 4268. [2022-10-16 13:27:56,020 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4268 states, 3247 states have (on average 1.3997536187249768) internal successors, (4545), 3344 states have internal predecessors, (4545), 796 states have call successors, (796), 196 states have call predecessors, (796), 195 states have return successors, (795), 793 states have call predecessors, (795), 795 states have call successors, (795) [2022-10-16 13:27:56,044 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4268 states to 4268 states and 6136 transitions. [2022-10-16 13:27:56,045 INFO L78 Accepts]: Start accepts. Automaton has 4268 states and 6136 transitions. Word has length 31 [2022-10-16 13:27:56,046 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 13:27:56,046 INFO L495 AbstractCegarLoop]: Abstraction has 4268 states and 6136 transitions. [2022-10-16 13:27:56,046 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 9.666666666666666) internal successors, (29), 4 states have internal predecessors, (29), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-10-16 13:27:56,046 INFO L276 IsEmpty]: Start isEmpty. Operand 4268 states and 6136 transitions. [2022-10-16 13:27:56,048 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2022-10-16 13:27:56,048 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 13:27:56,049 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] [2022-10-16 13:27:56,094 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-10-16 13:27:56,263 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,SelfDestructingSolverStorable5 [2022-10-16 13:27:56,264 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW === [snd_uart16550_io_loopErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, snd_uart16550_io_loopErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, snd_uart16550_output_triggerErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 35 more)] === [2022-10-16 13:27:56,265 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 13:27:56,265 INFO L85 PathProgramCache]: Analyzing trace with hash 1883844136, now seen corresponding path program 1 times [2022-10-16 13:27:56,265 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 13:27:56,265 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1230338853] [2022-10-16 13:27:56,266 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 13:27:56,266 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 13:27:56,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:27:56,489 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-10-16 13:27:56,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:27:56,498 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-10-16 13:27:56,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:27:56,512 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 13:27:56,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:27:56,519 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 13:27:56,519 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 13:27:56,519 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1230338853] [2022-10-16 13:27:56,520 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1230338853] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 13:27:56,520 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 13:27:56,520 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-10-16 13:27:56,520 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [156234498] [2022-10-16 13:27:56,520 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 13:27:56,521 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 13:27:56,521 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 13:27:56,522 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 13:27:56,525 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-16 13:27:56,525 INFO L87 Difference]: Start difference. First operand 4268 states and 6136 transitions. Second operand has 4 states, 4 states have (on average 7.25) internal successors, (29), 3 states have internal predecessors, (29), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2022-10-16 13:27:58,246 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 13:27:58,246 INFO L93 Difference]: Finished difference Result 11320 states and 16190 transitions. [2022-10-16 13:27:58,247 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-16 13:27:58,247 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 7.25) internal successors, (29), 3 states have internal predecessors, (29), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 35 [2022-10-16 13:27:58,248 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 13:27:58,301 INFO L225 Difference]: With dead ends: 11320 [2022-10-16 13:27:58,301 INFO L226 Difference]: Without dead ends: 7055 [2022-10-16 13:27:58,327 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-10-16 13:27:58,329 INFO L413 NwaCegarLoop]: 1155 mSDtfsCounter, 1120 mSDsluCounter, 1040 mSDsCounter, 0 mSdLazyCounter, 651 mSolverCounterSat, 312 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1208 SdHoareTripleChecker+Valid, 2195 SdHoareTripleChecker+Invalid, 963 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 312 IncrementalHoareTripleChecker+Valid, 651 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2022-10-16 13:27:58,329 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1208 Valid, 2195 Invalid, 963 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [312 Valid, 651 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2022-10-16 13:27:58,340 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7055 states. [2022-10-16 13:27:58,782 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7055 to 6994. [2022-10-16 13:27:58,800 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6994 states, 5355 states have (on average 1.3887955182072829) internal successors, (7437), 5482 states have internal predecessors, (7437), 1260 states have call successors, (1260), 350 states have call predecessors, (1260), 349 states have return successors, (1259), 1257 states have call predecessors, (1259), 1259 states have call successors, (1259) [2022-10-16 13:27:58,837 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6994 states to 6994 states and 9956 transitions. [2022-10-16 13:27:58,839 INFO L78 Accepts]: Start accepts. Automaton has 6994 states and 9956 transitions. Word has length 35 [2022-10-16 13:27:58,839 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 13:27:58,840 INFO L495 AbstractCegarLoop]: Abstraction has 6994 states and 9956 transitions. [2022-10-16 13:27:58,840 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 7.25) internal successors, (29), 3 states have internal predecessors, (29), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2022-10-16 13:27:58,840 INFO L276 IsEmpty]: Start isEmpty. Operand 6994 states and 9956 transitions. [2022-10-16 13:27:58,842 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2022-10-16 13:27:58,842 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 13:27:58,843 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] [2022-10-16 13:27:58,843 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-10-16 13:27:58,843 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting snd_serial_unregister_allErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [snd_uart16550_io_loopErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, snd_uart16550_io_loopErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, snd_uart16550_output_triggerErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 35 more)] === [2022-10-16 13:27:58,844 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 13:27:58,844 INFO L85 PathProgramCache]: Analyzing trace with hash 883658841, now seen corresponding path program 1 times [2022-10-16 13:27:58,844 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 13:27:58,844 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [231801989] [2022-10-16 13:27:58,844 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 13:27:58,845 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 13:27:58,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:27:59,065 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-10-16 13:27:59,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:27:59,072 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-10-16 13:27:59,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:27:59,082 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 13:27:59,082 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 13:27:59,082 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [231801989] [2022-10-16 13:27:59,083 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [231801989] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 13:27:59,083 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [147311762] [2022-10-16 13:27:59,083 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 13:27:59,083 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 13:27:59,084 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 13:27:59,090 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) [2022-10-16 13:27:59,102 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-10-16 13:27:59,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:27:59,467 INFO L263 TraceCheckSpWp]: Trace formula consists of 1445 conjuncts, 2 conjunts are in the unsatisfiable core [2022-10-16 13:27:59,471 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 13:27:59,504 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-10-16 13:27:59,504 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-16 13:27:59,504 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [147311762] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 13:27:59,504 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-16 13:27:59,505 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [5] total 6 [2022-10-16 13:27:59,505 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2128136367] [2022-10-16 13:27:59,505 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 13:27:59,506 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-16 13:27:59,506 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 13:27:59,507 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-16 13:27:59,507 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-10-16 13:27:59,507 INFO L87 Difference]: Start difference. First operand 6994 states and 9956 transitions. Second operand has 3 states, 2 states have (on average 16.5) internal successors, (33), 3 states have internal predecessors, (33), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-10-16 13:27:59,832 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 13:27:59,833 INFO L93 Difference]: Finished difference Result 7041 states and 10021 transitions. [2022-10-16 13:27:59,833 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-16 13:27:59,833 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 16.5) internal successors, (33), 3 states have internal predecessors, (33), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 38 [2022-10-16 13:27:59,835 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 13:27:59,898 INFO L225 Difference]: With dead ends: 7041 [2022-10-16 13:27:59,898 INFO L226 Difference]: Without dead ends: 7040 [2022-10-16 13:27:59,904 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-10-16 13:27:59,905 INFO L413 NwaCegarLoop]: 977 mSDtfsCounter, 6 mSDsluCounter, 974 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 1951 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 13:27:59,905 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 1951 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 13:27:59,916 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7040 states. [2022-10-16 13:28:00,269 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7040 to 7019. [2022-10-16 13:28:00,305 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7019 states, 5375 states have (on average 1.388093023255814) internal successors, (7461), 5502 states have internal predecessors, (7461), 1265 states have call successors, (1265), 350 states have call predecessors, (1265), 349 states have return successors, (1264), 1262 states have call predecessors, (1264), 1264 states have call successors, (1264) [2022-10-16 13:28:00,344 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7019 states to 7019 states and 9990 transitions. [2022-10-16 13:28:00,345 INFO L78 Accepts]: Start accepts. Automaton has 7019 states and 9990 transitions. Word has length 38 [2022-10-16 13:28:00,346 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 13:28:00,346 INFO L495 AbstractCegarLoop]: Abstraction has 7019 states and 9990 transitions. [2022-10-16 13:28:00,347 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 16.5) internal successors, (33), 3 states have internal predecessors, (33), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-10-16 13:28:00,347 INFO L276 IsEmpty]: Start isEmpty. Operand 7019 states and 9990 transitions. [2022-10-16 13:28:00,350 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-10-16 13:28:00,350 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 13:28:00,351 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] [2022-10-16 13:28:00,393 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2022-10-16 13:28:00,564 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,SelfDestructingSolverStorable7 [2022-10-16 13:28:00,564 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting snd_serial_unregister_allErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [snd_uart16550_io_loopErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, snd_uart16550_io_loopErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, snd_uart16550_output_triggerErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 35 more)] === [2022-10-16 13:28:00,565 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 13:28:00,565 INFO L85 PathProgramCache]: Analyzing trace with hash 1623620871, now seen corresponding path program 1 times [2022-10-16 13:28:00,565 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 13:28:00,565 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1436257390] [2022-10-16 13:28:00,566 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 13:28:00,566 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 13:28:00,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:28:00,808 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-10-16 13:28:00,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:28:00,817 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-10-16 13:28:00,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:28:00,823 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 13:28:00,824 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 13:28:00,824 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1436257390] [2022-10-16 13:28:00,824 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1436257390] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 13:28:00,824 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [145129484] [2022-10-16 13:28:00,825 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 13:28:00,825 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 13:28:00,825 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 13:28:00,828 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) [2022-10-16 13:28:00,841 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-10-16 13:28:01,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:28:01,266 INFO L263 TraceCheckSpWp]: Trace formula consists of 1446 conjuncts, 2 conjunts are in the unsatisfiable core [2022-10-16 13:28:01,270 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 13:28:01,299 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-10-16 13:28:01,300 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-16 13:28:01,300 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [145129484] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 13:28:01,300 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-16 13:28:01,300 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [5] total 6 [2022-10-16 13:28:01,301 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1114968475] [2022-10-16 13:28:01,301 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 13:28:01,303 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-16 13:28:01,303 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 13:28:01,303 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-16 13:28:01,303 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-10-16 13:28:01,304 INFO L87 Difference]: Start difference. First operand 7019 states and 9990 transitions. Second operand has 3 states, 2 states have (on average 17.0) internal successors, (34), 3 states have internal predecessors, (34), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-10-16 13:28:01,606 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 13:28:01,607 INFO L93 Difference]: Finished difference Result 7019 states and 9990 transitions. [2022-10-16 13:28:01,607 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-16 13:28:01,607 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 17.0) internal successors, (34), 3 states have internal predecessors, (34), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 39 [2022-10-16 13:28:01,608 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 13:28:01,647 INFO L225 Difference]: With dead ends: 7019 [2022-10-16 13:28:01,647 INFO L226 Difference]: Without dead ends: 7018 [2022-10-16 13:28:01,653 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-10-16 13:28:01,656 INFO L413 NwaCegarLoop]: 975 mSDtfsCounter, 5 mSDsluCounter, 969 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 1944 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 13:28:01,657 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 1944 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 13:28:01,667 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7018 states. [2022-10-16 13:28:02,091 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7018 to 7018. [2022-10-16 13:28:02,103 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7018 states, 5375 states have (on average 1.3871627906976745) internal successors, (7456), 5501 states have internal predecessors, (7456), 1265 states have call successors, (1265), 350 states have call predecessors, (1265), 349 states have return successors, (1264), 1262 states have call predecessors, (1264), 1264 states have call successors, (1264) [2022-10-16 13:28:02,142 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7018 states to 7018 states and 9985 transitions. [2022-10-16 13:28:02,143 INFO L78 Accepts]: Start accepts. Automaton has 7018 states and 9985 transitions. Word has length 39 [2022-10-16 13:28:02,145 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 13:28:02,146 INFO L495 AbstractCegarLoop]: Abstraction has 7018 states and 9985 transitions. [2022-10-16 13:28:02,146 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 17.0) internal successors, (34), 3 states have internal predecessors, (34), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-10-16 13:28:02,146 INFO L276 IsEmpty]: Start isEmpty. Operand 7018 states and 9985 transitions. [2022-10-16 13:28:02,148 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2022-10-16 13:28:02,148 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 13:28:02,149 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] [2022-10-16 13:28:02,188 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-10-16 13:28:02,362 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 13:28:02,363 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting snd_uart16550_buffer_outputErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [snd_uart16550_io_loopErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, snd_uart16550_io_loopErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, snd_uart16550_output_triggerErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 35 more)] === [2022-10-16 13:28:02,364 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 13:28:02,364 INFO L85 PathProgramCache]: Analyzing trace with hash -382470257, now seen corresponding path program 1 times [2022-10-16 13:28:02,364 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 13:28:02,365 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [421865556] [2022-10-16 13:28:02,365 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 13:28:02,365 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 13:28:02,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:28:02,570 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-10-16 13:28:02,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:28:02,587 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-10-16 13:28:02,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:28:02,597 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2022-10-16 13:28:02,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:28:02,610 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-10-16 13:28:02,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:28:02,620 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 13:28:02,620 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 13:28:02,620 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [421865556] [2022-10-16 13:28:02,620 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [421865556] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 13:28:02,621 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 13:28:02,621 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-10-16 13:28:02,621 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [778433112] [2022-10-16 13:28:02,621 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 13:28:02,622 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-10-16 13:28:02,622 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 13:28:02,622 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-10-16 13:28:02,622 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-10-16 13:28:02,623 INFO L87 Difference]: Start difference. First operand 7018 states and 9985 transitions. Second operand has 5 states, 5 states have (on average 6.8) internal successors, (34), 3 states have internal predecessors, (34), 2 states have call successors, (6), 4 states have call predecessors, (6), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2022-10-16 13:28:05,174 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 13:28:05,174 INFO L93 Difference]: Finished difference Result 14805 states and 21285 transitions. [2022-10-16 13:28:05,175 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-10-16 13:28:05,175 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.8) internal successors, (34), 3 states have internal predecessors, (34), 2 states have call successors, (6), 4 states have call predecessors, (6), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 44 [2022-10-16 13:28:05,175 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 13:28:05,219 INFO L225 Difference]: With dead ends: 14805 [2022-10-16 13:28:05,219 INFO L226 Difference]: Without dead ends: 7790 [2022-10-16 13:28:05,260 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2022-10-16 13:28:05,261 INFO L413 NwaCegarLoop]: 872 mSDtfsCounter, 523 mSDsluCounter, 1154 mSDsCounter, 0 mSdLazyCounter, 1175 mSolverCounterSat, 331 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 569 SdHoareTripleChecker+Valid, 2026 SdHoareTripleChecker+Invalid, 1506 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 331 IncrementalHoareTripleChecker+Valid, 1175 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2022-10-16 13:28:05,262 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [569 Valid, 2026 Invalid, 1506 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [331 Valid, 1175 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2022-10-16 13:28:05,275 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7790 states. [2022-10-16 13:28:05,733 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7790 to 7034. [2022-10-16 13:28:05,744 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7034 states, 5391 states have (on average 1.3860137265813393) internal successors, (7472), 5517 states have internal predecessors, (7472), 1265 states have call successors, (1265), 350 states have call predecessors, (1265), 349 states have return successors, (1264), 1262 states have call predecessors, (1264), 1264 states have call successors, (1264) [2022-10-16 13:28:05,782 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7034 states to 7034 states and 10001 transitions. [2022-10-16 13:28:05,784 INFO L78 Accepts]: Start accepts. Automaton has 7034 states and 10001 transitions. Word has length 44 [2022-10-16 13:28:05,785 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 13:28:05,785 INFO L495 AbstractCegarLoop]: Abstraction has 7034 states and 10001 transitions. [2022-10-16 13:28:05,785 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.8) internal successors, (34), 3 states have internal predecessors, (34), 2 states have call successors, (6), 4 states have call predecessors, (6), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2022-10-16 13:28:05,785 INFO L276 IsEmpty]: Start isEmpty. Operand 7034 states and 10001 transitions. [2022-10-16 13:28:05,787 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2022-10-16 13:28:05,787 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 13:28:05,788 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] [2022-10-16 13:28:05,788 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-10-16 13:28:05,788 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting snd_uart16550_buffer_outputErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [snd_uart16550_io_loopErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, snd_uart16550_io_loopErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, snd_uart16550_output_triggerErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 35 more)] === [2022-10-16 13:28:05,789 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 13:28:05,789 INFO L85 PathProgramCache]: Analyzing trace with hash -1393587507, now seen corresponding path program 1 times [2022-10-16 13:28:05,789 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 13:28:05,789 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [353246649] [2022-10-16 13:28:05,790 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 13:28:05,790 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 13:28:06,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-16 13:28:06,027 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-10-16 13:28:06,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-16 13:28:06,254 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-10-16 13:28:06,254 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-10-16 13:28:06,256 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location snd_uart16550_buffer_outputErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (37 of 38 remaining) [2022-10-16 13:28:06,258 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location snd_uart16550_io_loopErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (36 of 38 remaining) [2022-10-16 13:28:06,259 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location snd_uart16550_io_loopErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (35 of 38 remaining) [2022-10-16 13:28:06,259 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location snd_uart16550_output_triggerErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (34 of 38 remaining) [2022-10-16 13:28:06,259 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location snd_uart16550_output_triggerErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (33 of 38 remaining) [2022-10-16 13:28:06,259 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location snd_uart16550_output_triggerErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (32 of 38 remaining) [2022-10-16 13:28:06,260 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location snd_uart16550_output_triggerErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (31 of 38 remaining) [2022-10-16 13:28:06,260 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location snd_serial_unregister_allErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (30 of 38 remaining) [2022-10-16 13:28:06,260 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location snd_serial_unregister_allErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (29 of 38 remaining) [2022-10-16 13:28:06,260 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location snd_uart16550_output_byteErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (28 of 38 remaining) [2022-10-16 13:28:06,260 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location snd_uart16550_output_byteErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (27 of 38 remaining) [2022-10-16 13:28:06,261 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location snd_uart16550_buffer_outputErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (26 of 38 remaining) [2022-10-16 13:28:06,261 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location snd_uart16550_buffer_outputErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (25 of 38 remaining) [2022-10-16 13:28:06,261 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location snd_uart16550_buffer_outputErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (24 of 38 remaining) [2022-10-16 13:28:06,261 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location snd_uart16550_buffer_outputErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (23 of 38 remaining) [2022-10-16 13:28:06,262 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location snd_uart16550_buffer_outputErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (22 of 38 remaining) [2022-10-16 13:28:06,262 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (21 of 38 remaining) [2022-10-16 13:28:06,262 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (20 of 38 remaining) [2022-10-16 13:28:06,262 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (19 of 38 remaining) [2022-10-16 13:28:06,262 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (18 of 38 remaining) [2022-10-16 13:28:06,263 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (17 of 38 remaining) [2022-10-16 13:28:06,263 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (16 of 38 remaining) [2022-10-16 13:28:06,263 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 38 remaining) [2022-10-16 13:28:06,263 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 38 remaining) [2022-10-16 13:28:06,263 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 38 remaining) [2022-10-16 13:28:06,264 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 38 remaining) [2022-10-16 13:28:06,264 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 38 remaining) [2022-10-16 13:28:06,264 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 38 remaining) [2022-10-16 13:28:06,264 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 38 remaining) [2022-10-16 13:28:06,264 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 38 remaining) [2022-10-16 13:28:06,265 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 38 remaining) [2022-10-16 13:28:06,265 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 38 remaining) [2022-10-16 13:28:06,265 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location snd_uart16550_substreamsErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 38 remaining) [2022-10-16 13:28:06,265 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location snd_uart16550_substreamsErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 38 remaining) [2022-10-16 13:28:06,266 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location snd_uart16550_write_bufferErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 38 remaining) [2022-10-16 13:28:06,266 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location snd_uart16550_write_bufferErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 38 remaining) [2022-10-16 13:28:06,266 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location snd_uart16550_write_bufferErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 38 remaining) [2022-10-16 13:28:06,266 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location snd_uart16550_write_bufferErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 38 remaining) [2022-10-16 13:28:06,267 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-10-16 13:28:06,272 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 13:28:06,276 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-10-16 13:28:06,449 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.10 01:28:06 BoogieIcfgContainer [2022-10-16 13:28:06,449 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-10-16 13:28:06,450 INFO L158 Benchmark]: Toolchain (without parser) took 27277.75ms. Allocated memory was 158.3MB in the beginning and 663.7MB in the end (delta: 505.4MB). Free memory was 127.0MB in the beginning and 305.9MB in the end (delta: -178.8MB). Peak memory consumption was 327.6MB. Max. memory is 8.0GB. [2022-10-16 13:28:06,451 INFO L158 Benchmark]: CDTParser took 0.38ms. Allocated memory is still 158.3MB. Free memory is still 127.9MB. There was no memory consumed. Max. memory is 8.0GB. [2022-10-16 13:28:06,451 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1635.82ms. Allocated memory is still 158.3MB. Free memory was 126.8MB in the beginning and 79.6MB in the end (delta: 47.2MB). Peak memory consumption was 47.9MB. Max. memory is 8.0GB. [2022-10-16 13:28:06,451 INFO L158 Benchmark]: Boogie Procedure Inliner took 239.15ms. Allocated memory is still 158.3MB. Free memory was 79.6MB in the beginning and 66.5MB in the end (delta: 13.0MB). Peak memory consumption was 12.6MB. Max. memory is 8.0GB. [2022-10-16 13:28:06,452 INFO L158 Benchmark]: Boogie Preprocessor took 288.37ms. Allocated memory is still 158.3MB. Free memory was 66.0MB in the beginning and 52.4MB in the end (delta: 13.6MB). Peak memory consumption was 13.6MB. Max. memory is 8.0GB. [2022-10-16 13:28:06,452 INFO L158 Benchmark]: RCFGBuilder took 3264.78ms. Allocated memory was 158.3MB in the beginning and 210.8MB in the end (delta: 52.4MB). Free memory was 52.4MB in the beginning and 145.4MB in the end (delta: -93.0MB). Peak memory consumption was 33.3MB. Max. memory is 8.0GB. [2022-10-16 13:28:06,453 INFO L158 Benchmark]: TraceAbstraction took 21835.19ms. Allocated memory was 210.8MB in the beginning and 663.7MB in the end (delta: 453.0MB). Free memory was 144.9MB in the beginning and 305.9MB in the end (delta: -161.0MB). Peak memory consumption was 291.5MB. Max. memory is 8.0GB. [2022-10-16 13:28:06,455 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.38ms. Allocated memory is still 158.3MB. Free memory is still 127.9MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 1635.82ms. Allocated memory is still 158.3MB. Free memory was 126.8MB in the beginning and 79.6MB in the end (delta: 47.2MB). Peak memory consumption was 47.9MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 239.15ms. Allocated memory is still 158.3MB. Free memory was 79.6MB in the beginning and 66.5MB in the end (delta: 13.0MB). Peak memory consumption was 12.6MB. Max. memory is 8.0GB. * Boogie Preprocessor took 288.37ms. Allocated memory is still 158.3MB. Free memory was 66.0MB in the beginning and 52.4MB in the end (delta: 13.6MB). Peak memory consumption was 13.6MB. Max. memory is 8.0GB. * RCFGBuilder took 3264.78ms. Allocated memory was 158.3MB in the beginning and 210.8MB in the end (delta: 52.4MB). Free memory was 52.4MB in the beginning and 145.4MB in the end (delta: -93.0MB). Peak memory consumption was 33.3MB. Max. memory is 8.0GB. * TraceAbstraction took 21835.19ms. Allocated memory was 210.8MB in the beginning and 663.7MB in the end (delta: 453.0MB). Free memory was 144.9MB in the beginning and 305.9MB in the end (delta: -161.0MB). Peak memory consumption was 291.5MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation The program execution was not completely translated back. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 2998]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: overapproximation of large string literal at line 2866, overapproximation of bitwiseAnd at line 3057. Possible FailurePath: [L2723] int ldv_irq_1_3 = 0; [L2724] void *ldv_irq_data_1_1 ; [L2725] int ldv_irq_1_0 = 0; [L2726] void *ldv_irq_data_1_0 ; [L2727] int ldv_state_variable_0 ; [L2728] int ldv_state_variable_5 ; [L2729] int ldv_state_variable_2 ; [L2730] void *ldv_irq_data_1_3 ; [L2731] struct snd_rawmidi_substream *snd_uart16550_input_group0 ; [L2732] void *ldv_irq_data_1_2 ; [L2733] int ldv_irq_1_2 = 0; [L2734] int LDV_IN_INTERRUPT = 1; [L2735] int ldv_irq_1_1 = 0; [L2736] int ldv_timer_state_2 = 0; [L2737] int ldv_irq_line_1_3 ; [L2738] int ldv_state_variable_3 ; [L2739] int ldv_irq_line_1_0 ; [L2740] struct timer_list *ldv_timer_list_2 ; [L2741] struct platform_device *snd_serial_driver_group0 ; [L2742] int ref_cnt ; [L2743] int ldv_irq_line_1_1 ; [L2744] struct snd_rawmidi_substream *snd_uart16550_output_group0 ; [L2745] int ldv_state_variable_1 ; [L2746] int ldv_irq_line_1_2 ; [L2747] int ldv_state_variable_4 ; [L2866-L2867] static char *adaptor_names[5U] = { (char *)"Soundcanvas", (char *)"MS-124T", (char *)"MS-124W S/A", (char *)"MS-124W M/B", (char *)"Generic"}; [L2868-L2876] static int index[32U] = { -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1}; [L2877-L2885] static char *id[32U] = { (char *)0, (char *)0, (char *)0, (char *)0, (char *)0, (char *)0, (char *)0, (char *)0, (char *)0, (char *)0, (char *)0, (char *)0, (char *)0, (char *)0, (char *)0, (char *)0, (char *)0, (char *)0, (char *)0, (char *)0, (char *)0, (char *)0, (char *)0, (char *)0, (char *)0, (char *)0, (char *)0, (char *)0, (char *)0, (char *)0, (char *)0, (char *)0}; [L2886-L2894] static bool enable[32U] = { 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0}; [L2895-L2903] static long port[32U] = { 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L, 1L}; [L2904-L2912] static int irq[32U] = { 65535, 65535, 65535, 65535, 65535, 65535, 65535, 65535, 65535, 65535, 65535, 65535, 65535, 65535, 65535, 65535, 65535, 65535, 65535, 65535, 65535, 65535, 65535, 65535, 65535, 65535, 65535, 65535, 65535, 65535, 65535, 65535}; [L2913-L2921] static int speed[32U] = { 38400, 38400, 38400, 38400, 38400, 38400, 38400, 38400, 38400, 38400, 38400, 38400, 38400, 38400, 38400, 38400, 38400, 38400, 38400, 38400, 38400, 38400, 38400, 38400, 38400, 38400, 38400, 38400, 38400, 38400, 38400, 38400}; [L2922-L2930] static int base[32U] = { 115200, 115200, 115200, 115200, 115200, 115200, 115200, 115200, 115200, 115200, 115200, 115200, 115200, 115200, 115200, 115200, 115200, 115200, 115200, 115200, 115200, 115200, 115200, 115200, 115200, 115200, 115200, 115200, 115200, 115200, 115200, 115200}; [L2931-L2939] static int outs[32U] = { 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1}; [L2940-L2948] static int ins[32U] = { 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1}; [L2949-L2957] static int adaptor[32U] = { 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0}; [L2958-L2966] static bool droponfull[32U] = { 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0}; [L2967] static struct platform_device *devices[32U] ; [L3518-L3519] static struct snd_rawmidi_ops snd_uart16550_output = {& snd_uart16550_output_open, & snd_uart16550_output_close, & snd_uart16550_output_trigger, 0}; [L3520-L3521] static struct snd_rawmidi_ops snd_uart16550_input = {& snd_uart16550_input_open, & snd_uart16550_input_close, & snd_uart16550_input_trigger, 0}; [L3757-L3760] static struct platform_driver snd_serial_driver = {& snd_serial_probe, & snd_serial_remove, 0, 0, 0, {"snd_serial_u16550", 0, & __this_module, 0, (_Bool)0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0}, 0, (_Bool)0}; [L3839] int ldv_retval_2 ; [L3840] int ldv_retval_0 ; [L3841] int ldv_retval_5 ; [L3842] int ldv_retval_4 ; [L3844] int ldv_retval_1 ; [L3846] int ldv_retval_3 ; [L4340] int ldv_spin = 0; VAL [__this_module={2147483654:2147483649}, adaptor={45:0}, adaptor_names={35:0}, base={42:0}, devices={47:0}, droponfull={46:0}, enable={38:0}, id={37:0}, index={36:0}, ins={44:0}, irq={40:0}, LDV_IN_INTERRUPT=1, ldv_irq_1_0=0, ldv_irq_1_1=0, ldv_irq_1_2=0, ldv_irq_1_3=0, ldv_irq_data_1_0={0:0}, ldv_irq_data_1_1={0:0}, ldv_irq_data_1_2={0:0}, ldv_irq_data_1_3={0:0}, ldv_irq_line_1_0=0, ldv_irq_line_1_1=0, ldv_irq_line_1_2=0, ldv_irq_line_1_3=0, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_retval_5=0, ldv_spin=0, ldv_state_variable_0=0, ldv_state_variable_1=0, ldv_state_variable_2=0, ldv_state_variable_3=0, ldv_state_variable_4=0, ldv_state_variable_5=0, ldv_timer_list_2={0:0}, ldv_timer_state_2=0, outs={43:0}, port={39:0}, ref_cnt=0, snd_serial_driver={50:0}, snd_serial_driver_group0={0:0}, snd_uart16550_input={49:0}, snd_uart16550_input_group0={0:0}, snd_uart16550_output={48:0}, snd_uart16550_output_group0={0:0}, speed={41:0}] [L4044] int ldvarg0 ; [L4045] int tmp ; [L4046] int ldvarg1 ; [L4047] int tmp___0 ; [L4048] int tmp___1 ; [L4049] int tmp___2 ; [L4050] int tmp___3 ; [L4051] int tmp___4 ; [L4052] int tmp___5 ; [L4054] tmp = __VERIFIER_nondet_int() [L4055] ldvarg0 = tmp [L4056] tmp___0 = __VERIFIER_nondet_int() [L4057] ldvarg1 = tmp___0 [L4058] FCALL ldv_initialize() [L4059] ldv_state_variable_4 = 0 [L4060] ldv_state_variable_1 = 1 [L4061] ref_cnt = 0 [L4062] ldv_state_variable_0 = 1 [L4063] ldv_state_variable_3 = 0 [L4064] ldv_state_variable_2 = 1 [L4065] ldv_state_variable_5 = 0 VAL [__this_module={2147483654:2147483649}, adaptor={45:0}, adaptor_names={35:0}, base={42:0}, devices={47:0}, droponfull={46:0}, enable={38:0}, id={37:0}, index={36:0}, ins={44:0}, irq={40:0}, LDV_IN_INTERRUPT=1, ldv_irq_1_0=0, ldv_irq_1_1=0, ldv_irq_1_2=0, ldv_irq_1_3=0, ldv_irq_data_1_0={0:0}, ldv_irq_data_1_1={0:0}, ldv_irq_data_1_2={0:0}, ldv_irq_data_1_3={0:0}, ldv_irq_line_1_0=0, ldv_irq_line_1_1=0, ldv_irq_line_1_2=0, ldv_irq_line_1_3=0, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_retval_5=0, ldv_spin=0, ldv_state_variable_0=1, ldv_state_variable_1=1, ldv_state_variable_2=1, ldv_state_variable_3=0, ldv_state_variable_4=0, ldv_state_variable_5=0, ldv_timer_list_2={0:0}, ldv_timer_state_2=0, ldvarg0=0, ldvarg1=0, outs={43:0}, port={39:0}, ref_cnt=0, snd_serial_driver={50:0}, snd_serial_driver_group0={0:0}, snd_uart16550_input={49:0}, snd_uart16550_input_group0={0:0}, snd_uart16550_output={48:0}, snd_uart16550_output_group0={0:0}, speed={41:0}, tmp=0, tmp___0=0] [L4067] tmp___1 = __VERIFIER_nondet_int() [L4069] case 0: [L4114] case 1: [L4120] case 2: [L4158] case 3: [L4188] case 4: VAL [__this_module={2147483654:2147483649}, adaptor={45:0}, adaptor_names={35:0}, base={42:0}, devices={47:0}, droponfull={46:0}, enable={38:0}, id={37:0}, index={36:0}, ins={44:0}, irq={40:0}, LDV_IN_INTERRUPT=1, ldv_irq_1_0=0, ldv_irq_1_1=0, ldv_irq_1_2=0, ldv_irq_1_3=0, ldv_irq_data_1_0={0:0}, ldv_irq_data_1_1={0:0}, ldv_irq_data_1_2={0:0}, ldv_irq_data_1_3={0:0}, ldv_irq_line_1_0=0, ldv_irq_line_1_1=0, ldv_irq_line_1_2=0, ldv_irq_line_1_3=0, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_retval_5=0, ldv_spin=0, ldv_state_variable_0=1, ldv_state_variable_1=1, ldv_state_variable_2=1, ldv_state_variable_3=0, ldv_state_variable_4=0, ldv_state_variable_5=0, ldv_timer_list_2={0:0}, ldv_timer_state_2=0, ldvarg0=0, ldvarg1=0, outs={43:0}, port={39:0}, ref_cnt=0, snd_serial_driver={50:0}, snd_serial_driver_group0={0:0}, snd_uart16550_input={49:0}, snd_uart16550_input_group0={0:0}, snd_uart16550_output={48:0}, snd_uart16550_output_group0={0:0}, speed={41:0}, tmp=0, tmp___0=0, tmp___1=4] [L4189] COND TRUE ldv_state_variable_2 != 0 [L4190] CALL choose_timer_2(ldv_timer_list_2) [L3850] LDV_IN_INTERRUPT = 2 [L3851] EXPR timer->data [L3851] EXPR timer->function [L3851] CALL (*(timer->function))(timer->data) [L3108] unsigned long flags ; [L3109] struct snd_uart16550 *uart ; [L3111] uart = (struct snd_uart16550 *)data VAL [\old(data)=0, __this_module={2147483654:2147483649}, adaptor={45:0}, adaptor_names={35:0}, base={42:0}, data=0, devices={47:0}, droponfull={46:0}, enable={38:0}, id={37:0}, index={36:0}, ins={44:0}, irq={40:0}, LDV_IN_INTERRUPT=2, ldv_irq_1_0=0, ldv_irq_1_1=0, ldv_irq_1_2=0, ldv_irq_1_3=0, ldv_irq_data_1_0={0:0}, ldv_irq_data_1_1={0:0}, ldv_irq_data_1_2={0:0}, ldv_irq_data_1_3={0:0}, ldv_irq_line_1_0=0, ldv_irq_line_1_1=0, ldv_irq_line_1_2=0, ldv_irq_line_1_3=0, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_retval_5=0, ldv_spin=0, ldv_state_variable_0=1, ldv_state_variable_1=1, ldv_state_variable_2=1, ldv_state_variable_3=0, ldv_state_variable_4=0, ldv_state_variable_5=0, ldv_timer_list_2={0:0}, ldv_timer_state_2=0, outs={43:0}, port={39:0}, ref_cnt=0, snd_serial_driver={50:0}, snd_serial_driver_group0={0:0}, snd_uart16550_input={49:0}, snd_uart16550_input_group0={0:0}, snd_uart16550_output={48:0}, snd_uart16550_output_group0={0:0}, speed={41:0}, uart={0:0}] [L3112] CALL ldv_spin_lock() VAL [\old(ldv_spin)=0, __this_module={2147483654:2147483649}, adaptor={45:0}, adaptor_names={35:0}, base={42:0}, devices={47:0}, droponfull={46:0}, enable={38:0}, id={37:0}, index={36:0}, ins={44:0}, irq={40:0}, LDV_IN_INTERRUPT=2, ldv_irq_1_0=0, ldv_irq_1_1=0, ldv_irq_1_2=0, ldv_irq_1_3=0, ldv_irq_data_1_0={0:0}, ldv_irq_data_1_1={0:0}, ldv_irq_data_1_2={0:0}, ldv_irq_data_1_3={0:0}, ldv_irq_line_1_0=0, ldv_irq_line_1_1=0, ldv_irq_line_1_2=0, ldv_irq_line_1_3=0, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_retval_5=0, ldv_spin=0, ldv_state_variable_0=1, ldv_state_variable_1=1, ldv_state_variable_2=1, ldv_state_variable_3=0, ldv_state_variable_4=0, ldv_state_variable_5=0, ldv_timer_list_2={0:0}, ldv_timer_state_2=0, outs={43:0}, port={39:0}, ref_cnt=0, snd_serial_driver={50:0}, snd_serial_driver_group0={0:0}, snd_uart16550_input={49:0}, snd_uart16550_input_group0={0:0}, snd_uart16550_output={48:0}, snd_uart16550_output_group0={0:0}, speed={41:0}] [L4377] ldv_spin = 1 VAL [\old(ldv_spin)=0, __this_module={2147483654:2147483649}, adaptor={45:0}, adaptor_names={35:0}, base={42:0}, devices={47:0}, droponfull={46:0}, enable={38:0}, id={37:0}, index={36:0}, ins={44:0}, irq={40:0}, LDV_IN_INTERRUPT=2, ldv_irq_1_0=0, ldv_irq_1_1=0, ldv_irq_1_2=0, ldv_irq_1_3=0, ldv_irq_data_1_0={0:0}, ldv_irq_data_1_1={0:0}, ldv_irq_data_1_2={0:0}, ldv_irq_data_1_3={0:0}, ldv_irq_line_1_0=0, ldv_irq_line_1_1=0, ldv_irq_line_1_2=0, ldv_irq_line_1_3=0, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_retval_5=0, ldv_spin=1, ldv_state_variable_0=1, ldv_state_variable_1=1, ldv_state_variable_2=1, ldv_state_variable_3=0, ldv_state_variable_4=0, ldv_state_variable_5=0, ldv_timer_list_2={0:0}, ldv_timer_state_2=0, outs={43:0}, port={39:0}, ref_cnt=0, snd_serial_driver={50:0}, snd_serial_driver_group0={0:0}, snd_uart16550_input={49:0}, snd_uart16550_input_group0={0:0}, snd_uart16550_output={48:0}, snd_uart16550_output_group0={0:0}, speed={41:0}] [L3112] RET ldv_spin_lock() VAL [\old(data)=0, __this_module={2147483654:2147483649}, adaptor={45:0}, adaptor_names={35:0}, base={42:0}, data=0, devices={47:0}, droponfull={46:0}, enable={38:0}, id={37:0}, index={36:0}, ins={44:0}, irq={40:0}, LDV_IN_INTERRUPT=2, ldv_irq_1_0=0, ldv_irq_1_1=0, ldv_irq_1_2=0, ldv_irq_1_3=0, ldv_irq_data_1_0={0:0}, ldv_irq_data_1_1={0:0}, ldv_irq_data_1_2={0:0}, ldv_irq_data_1_3={0:0}, ldv_irq_line_1_0=0, ldv_irq_line_1_1=0, ldv_irq_line_1_2=0, ldv_irq_line_1_3=0, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_retval_5=0, ldv_spin=1, ldv_state_variable_0=1, ldv_state_variable_1=1, ldv_state_variable_2=1, ldv_state_variable_3=0, ldv_state_variable_4=0, ldv_state_variable_5=0, ldv_timer_list_2={0:0}, ldv_timer_state_2=0, outs={43:0}, port={39:0}, ref_cnt=0, snd_serial_driver={50:0}, snd_serial_driver_group0={0:0}, snd_uart16550_input={49:0}, snd_uart16550_input_group0={0:0}, snd_uart16550_output={48:0}, snd_uart16550_output_group0={0:0}, speed={41:0}, uart={0:0}] [L3113] CALL snd_uart16550_del_timer(uart) VAL [\old(ldv_timer_state_2)=0, __this_module={2147483654:2147483649}, adaptor={45:0}, adaptor_names={35:0}, base={42:0}, devices={47:0}, droponfull={46:0}, enable={38:0}, id={37:0}, index={36:0}, ins={44:0}, irq={40:0}, LDV_IN_INTERRUPT=2, ldv_irq_1_0=0, ldv_irq_1_1=0, ldv_irq_1_2=0, ldv_irq_1_3=0, ldv_irq_data_1_0={0:0}, ldv_irq_data_1_1={0:0}, ldv_irq_data_1_2={0:0}, ldv_irq_data_1_3={0:0}, ldv_irq_line_1_0=0, ldv_irq_line_1_1=0, ldv_irq_line_1_2=0, ldv_irq_line_1_3=0, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_retval_5=0, ldv_spin=1, ldv_state_variable_0=1, ldv_state_variable_1=1, ldv_state_variable_2=1, ldv_state_variable_3=0, ldv_state_variable_4=0, ldv_state_variable_5=0, ldv_timer_list_2={0:0}, ldv_timer_state_2=0, outs={43:0}, port={39:0}, ref_cnt=0, snd_serial_driver={50:0}, snd_serial_driver_group0={0:0}, snd_uart16550_input={49:0}, snd_uart16550_input_group0={0:0}, snd_uart16550_output={48:0}, snd_uart16550_output_group0={0:0}, speed={41:0}] [L2983] EXPR (unsigned char *)uart + 33208UL VAL [(unsigned char *)uart + 33208UL=0, \old(ldv_timer_state_2)=0, __this_module={2147483654:2147483649}, adaptor={45:0}, adaptor_names={35:0}, base={42:0}, devices={47:0}, droponfull={46:0}, enable={38:0}, id={37:0}, index={36:0}, ins={44:0}, irq={40:0}, LDV_IN_INTERRUPT=2, ldv_irq_1_0=0, ldv_irq_1_1=0, ldv_irq_1_2=0, ldv_irq_1_3=0, ldv_irq_data_1_0={0:0}, ldv_irq_data_1_1={0:0}, ldv_irq_data_1_2={0:0}, ldv_irq_data_1_3={0:0}, ldv_irq_line_1_0=0, ldv_irq_line_1_1=0, ldv_irq_line_1_2=0, ldv_irq_line_1_3=0, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_retval_5=0, ldv_spin=1, ldv_state_variable_0=1, ldv_state_variable_1=1, ldv_state_variable_2=1, ldv_state_variable_3=0, ldv_state_variable_4=0, ldv_state_variable_5=0, ldv_timer_list_2={0:0}, ldv_timer_state_2=0, outs={43:0}, port={39:0}, ref_cnt=0, snd_serial_driver={50:0}, snd_serial_driver_group0={0:0}, snd_uart16550_input={49:0}, snd_uart16550_input_group0={0:0}, snd_uart16550_output={48:0}, snd_uart16550_output_group0={0:0}, speed={41:0}, uart={0:0}, uart={0:0}] [L2983] COND FALSE !((unsigned int )*((unsigned char *)uart + 33208UL) != 0U) [L3113] RET snd_uart16550_del_timer(uart) VAL [\old(data)=0, __this_module={2147483654:2147483649}, adaptor={45:0}, adaptor_names={35:0}, base={42:0}, data=0, devices={47:0}, droponfull={46:0}, enable={38:0}, id={37:0}, index={36:0}, ins={44:0}, irq={40:0}, LDV_IN_INTERRUPT=2, ldv_irq_1_0=0, ldv_irq_1_1=0, ldv_irq_1_2=0, ldv_irq_1_3=0, ldv_irq_data_1_0={0:0}, ldv_irq_data_1_1={0:0}, ldv_irq_data_1_2={0:0}, ldv_irq_data_1_3={0:0}, ldv_irq_line_1_0=0, ldv_irq_line_1_1=0, ldv_irq_line_1_2=0, ldv_irq_line_1_3=0, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_retval_5=0, ldv_spin=1, ldv_state_variable_0=1, ldv_state_variable_1=1, ldv_state_variable_2=1, ldv_state_variable_3=0, ldv_state_variable_4=0, ldv_state_variable_5=0, ldv_timer_list_2={0:0}, ldv_timer_state_2=0, outs={43:0}, port={39:0}, ref_cnt=0, snd_serial_driver={50:0}, snd_serial_driver_group0={0:0}, snd_uart16550_input={49:0}, snd_uart16550_input_group0={0:0}, snd_uart16550_output={48:0}, snd_uart16550_output_group0={0:0}, speed={41:0}, uart={0:0}] [L3114] CALL snd_uart16550_io_loop(uart) VAL [\old(buff_out = (unsigned int )buff_out & 32767U)=2147483651, __this_module={2147483654:2147483649}, adaptor={45:0}, adaptor_names={35:0}, base={42:0}, buff_out = (unsigned int )buff_out & 32767U=2147483651, devices={47:0}, droponfull={46:0}, enable={38:0}, id={37:0}, index={36:0}, ins={44:0}, irq={40:0}, LDV_IN_INTERRUPT=2, ldv_irq_1_0=0, ldv_irq_1_1=0, ldv_irq_1_2=0, ldv_irq_1_3=0, ldv_irq_data_1_0={0:0}, ldv_irq_data_1_1={0:0}, ldv_irq_data_1_2={0:0}, ldv_irq_data_1_3={0:0}, ldv_irq_line_1_0=0, ldv_irq_line_1_1=0, ldv_irq_line_1_2=0, ldv_irq_line_1_3=0, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_retval_5=0, ldv_spin=1, ldv_state_variable_0=1, ldv_state_variable_1=1, ldv_state_variable_2=1, ldv_state_variable_3=0, ldv_state_variable_4=0, ldv_state_variable_5=0, ldv_timer_list_2={0:0}, ldv_timer_state_2=0, outs={43:0}, port={39:0}, ref_cnt=0, snd_serial_driver={50:0}, snd_serial_driver_group0={0:0}, snd_uart16550_input={49:0}, snd_uart16550_input_group0={0:0}, snd_uart16550_output={48:0}, snd_uart16550_output_group0={0:0}, speed={41:0}, uart={0:0}] [L3010] unsigned char c ; [L3011] unsigned char status ; [L3012] int substream ; [L3014] EXPR uart->prev_in [L3014] substream = uart->prev_in [L3051] EXPR uart->base VAL [\old(buff_out = (unsigned int )buff_out & 32767U)=2147483651, __this_module={2147483654:2147483649}, adaptor={45:0}, adaptor_names={35:0}, base={42:0}, buff_out = (unsigned int )buff_out & 32767U=2147483651, c={51:0}, devices={47:0}, droponfull={46:0}, enable={38:0}, id={37:0}, index={36:0}, ins={44:0}, irq={40:0}, LDV_IN_INTERRUPT=2, ldv_irq_1_0=0, ldv_irq_1_1=0, ldv_irq_1_2=0, ldv_irq_1_3=0, ldv_irq_data_1_0={0:0}, ldv_irq_data_1_1={0:0}, ldv_irq_data_1_2={0:0}, ldv_irq_data_1_3={0:0}, ldv_irq_line_1_0=0, ldv_irq_line_1_1=0, ldv_irq_line_1_2=0, ldv_irq_line_1_3=0, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_retval_5=0, ldv_spin=1, ldv_state_variable_0=1, ldv_state_variable_1=1, ldv_state_variable_2=1, ldv_state_variable_3=0, ldv_state_variable_4=0, ldv_state_variable_5=0, ldv_timer_list_2={0:0}, ldv_timer_state_2=0, outs={43:0}, port={39:0}, ref_cnt=0, snd_serial_driver={50:0}, snd_serial_driver_group0={0:0}, snd_uart16550_input={49:0}, snd_uart16550_input_group0={0:0}, snd_uart16550_output={48:0}, snd_uart16550_output_group0={0:0}, speed={41:0}, substream=2147483655, uart={0:0}, uart={0:0}, uart->base=-4] [L3051] CALL, EXPR inb((int )((unsigned int )uart->base + 5U)) VAL [\old(buff_out = (unsigned int )buff_out & 32767U)=2147483651, \old(port___0)=1, __this_module={2147483654:2147483649}, adaptor={45:0}, adaptor_names={35:0}, base={42:0}, buff_out = (unsigned int )buff_out & 32767U=2147483651, devices={47:0}, droponfull={46:0}, enable={38:0}, id={37:0}, index={36:0}, ins={44:0}, irq={40:0}, LDV_IN_INTERRUPT=2, ldv_irq_1_0=0, ldv_irq_1_1=0, ldv_irq_1_2=0, ldv_irq_1_3=0, ldv_irq_data_1_0={0:0}, ldv_irq_data_1_1={0:0}, ldv_irq_data_1_2={0:0}, ldv_irq_data_1_3={0:0}, ldv_irq_line_1_0=0, ldv_irq_line_1_1=0, ldv_irq_line_1_2=0, ldv_irq_line_1_3=0, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_retval_5=0, ldv_spin=1, ldv_state_variable_0=1, ldv_state_variable_1=1, ldv_state_variable_2=1, ldv_state_variable_3=0, ldv_state_variable_4=0, ldv_state_variable_5=0, ldv_timer_list_2={0:0}, ldv_timer_state_2=0, outs={43:0}, port={39:0}, ref_cnt=0, snd_serial_driver={50:0}, snd_serial_driver_group0={0:0}, snd_uart16550_input={49:0}, snd_uart16550_input_group0={0:0}, snd_uart16550_output={48:0}, snd_uart16550_output_group0={0:0}, speed={41:0}] [L2625] unsigned char value ; [L2628] return (value); VAL [\old(buff_out = (unsigned int )buff_out & 32767U)=2147483651, \old(port___0)=1, \result=0, __this_module={2147483654:2147483649}, adaptor={45:0}, adaptor_names={35:0}, base={42:0}, buff_out = (unsigned int )buff_out & 32767U=2147483651, devices={47:0}, droponfull={46:0}, enable={38:0}, id={37:0}, index={36:0}, ins={44:0}, irq={40:0}, LDV_IN_INTERRUPT=2, ldv_irq_1_0=0, ldv_irq_1_1=0, ldv_irq_1_2=0, ldv_irq_1_3=0, ldv_irq_data_1_0={0:0}, ldv_irq_data_1_1={0:0}, ldv_irq_data_1_2={0:0}, ldv_irq_data_1_3={0:0}, ldv_irq_line_1_0=0, ldv_irq_line_1_1=0, ldv_irq_line_1_2=0, ldv_irq_line_1_3=0, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_retval_5=0, ldv_spin=1, ldv_state_variable_0=1, ldv_state_variable_1=1, ldv_state_variable_2=1, ldv_state_variable_3=0, ldv_state_variable_4=0, ldv_state_variable_5=0, ldv_timer_list_2={0:0}, ldv_timer_state_2=0, outs={43:0}, port={39:0}, port___0=1, ref_cnt=0, snd_serial_driver={50:0}, snd_serial_driver_group0={0:0}, snd_uart16550_input={49:0}, snd_uart16550_input_group0={0:0}, snd_uart16550_output={48:0}, snd_uart16550_output_group0={0:0}, speed={41:0}, value=0] [L3051] RET, EXPR inb((int )((unsigned int )uart->base + 5U)) VAL [\old(buff_out = (unsigned int )buff_out & 32767U)=2147483651, __this_module={2147483654:2147483649}, adaptor={45:0}, adaptor_names={35:0}, base={42:0}, buff_out = (unsigned int )buff_out & 32767U=2147483651, c={51:0}, devices={47:0}, droponfull={46:0}, enable={38:0}, id={37:0}, inb((int )((unsigned int )uart->base + 5U))=0, index={36:0}, ins={44:0}, irq={40:0}, LDV_IN_INTERRUPT=2, ldv_irq_1_0=0, ldv_irq_1_1=0, ldv_irq_1_2=0, ldv_irq_1_3=0, ldv_irq_data_1_0={0:0}, ldv_irq_data_1_1={0:0}, ldv_irq_data_1_2={0:0}, ldv_irq_data_1_3={0:0}, ldv_irq_line_1_0=0, ldv_irq_line_1_1=0, ldv_irq_line_1_2=0, ldv_irq_line_1_3=0, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_retval_5=0, ldv_spin=1, ldv_state_variable_0=1, ldv_state_variable_1=1, ldv_state_variable_2=1, ldv_state_variable_3=0, ldv_state_variable_4=0, ldv_state_variable_5=0, ldv_timer_list_2={0:0}, ldv_timer_state_2=0, outs={43:0}, port={39:0}, ref_cnt=0, snd_serial_driver={50:0}, snd_serial_driver_group0={0:0}, snd_uart16550_input={49:0}, snd_uart16550_input_group0={0:0}, snd_uart16550_output={48:0}, snd_uart16550_output_group0={0:0}, speed={41:0}, substream=2147483655, uart={0:0}, uart={0:0}, uart->base=-4] [L3051] status = inb((int )((unsigned int )uart->base + 5U)) [L3052] COND FALSE !((int )status & 1) [L3056] uart->prev_in = substream VAL [\old(buff_out = (unsigned int )buff_out & 32767U)=2147483651, __this_module={2147483654:2147483649}, adaptor={45:0}, adaptor_names={35:0}, base={42:0}, buff_out = (unsigned int )buff_out & 32767U=2147483651, c={51:0}, devices={47:0}, droponfull={46:0}, enable={38:0}, id={37:0}, index={36:0}, ins={44:0}, irq={40:0}, LDV_IN_INTERRUPT=2, ldv_irq_1_0=0, ldv_irq_1_1=0, ldv_irq_1_2=0, ldv_irq_1_3=0, ldv_irq_data_1_0={0:0}, ldv_irq_data_1_1={0:0}, ldv_irq_data_1_2={0:0}, ldv_irq_data_1_3={0:0}, ldv_irq_line_1_0=0, ldv_irq_line_1_1=0, ldv_irq_line_1_2=0, ldv_irq_line_1_3=0, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_retval_5=0, ldv_spin=1, ldv_state_variable_0=1, ldv_state_variable_1=1, ldv_state_variable_2=1, ldv_state_variable_3=0, ldv_state_variable_4=0, ldv_state_variable_5=0, ldv_timer_list_2={0:0}, ldv_timer_state_2=0, outs={43:0}, port={39:0}, ref_cnt=0, snd_serial_driver={50:0}, snd_serial_driver_group0={0:0}, snd_uart16550_input={49:0}, snd_uart16550_input_group0={0:0}, snd_uart16550_output={48:0}, snd_uart16550_output_group0={0:0}, speed={41:0}, status=0, substream=2147483655, uart={0:0}, uart={0:0}] [L3057] COND FALSE !(((int )status & 32) != 0) VAL [\old(buff_out = (unsigned int )buff_out & 32767U)=2147483651, __this_module={2147483654:2147483649}, adaptor={45:0}, adaptor_names={35:0}, base={42:0}, buff_out = (unsigned int )buff_out & 32767U=2147483651, c={51:0}, devices={47:0}, droponfull={46:0}, enable={38:0}, id={37:0}, index={36:0}, ins={44:0}, irq={40:0}, LDV_IN_INTERRUPT=2, ldv_irq_1_0=0, ldv_irq_1_1=0, ldv_irq_1_2=0, ldv_irq_1_3=0, ldv_irq_data_1_0={0:0}, ldv_irq_data_1_1={0:0}, ldv_irq_data_1_2={0:0}, ldv_irq_data_1_3={0:0}, ldv_irq_line_1_0=0, ldv_irq_line_1_1=0, ldv_irq_line_1_2=0, ldv_irq_line_1_3=0, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_retval_5=0, ldv_spin=1, ldv_state_variable_0=1, ldv_state_variable_1=1, ldv_state_variable_2=1, ldv_state_variable_3=0, ldv_state_variable_4=0, ldv_state_variable_5=0, ldv_timer_list_2={0:0}, ldv_timer_state_2=0, outs={43:0}, port={39:0}, ref_cnt=0, snd_serial_driver={50:0}, snd_serial_driver_group0={0:0}, snd_uart16550_input={49:0}, snd_uart16550_input_group0={0:0}, snd_uart16550_output={48:0}, snd_uart16550_output_group0={0:0}, speed={41:0}, status=0, substream=2147483655, uart={0:0}, uart={0:0}] [L3061] EXPR uart->adaptor [L3061] uart->adaptor == 2 || uart->adaptor == 4 [L3061] EXPR uart->adaptor [L3061] uart->adaptor == 2 || uart->adaptor == 4 VAL [\old(buff_out = (unsigned int )buff_out & 32767U)=2147483651, __this_module={2147483654:2147483649}, adaptor={45:0}, adaptor_names={35:0}, base={42:0}, buff_out = (unsigned int )buff_out & 32767U=2147483651, c={51:0}, devices={47:0}, droponfull={46:0}, enable={38:0}, id={37:0}, index={36:0}, ins={44:0}, irq={40:0}, LDV_IN_INTERRUPT=2, ldv_irq_1_0=0, ldv_irq_1_1=0, ldv_irq_1_2=0, ldv_irq_1_3=0, ldv_irq_data_1_0={0:0}, ldv_irq_data_1_1={0:0}, ldv_irq_data_1_2={0:0}, ldv_irq_data_1_3={0:0}, ldv_irq_line_1_0=0, ldv_irq_line_1_1=0, ldv_irq_line_1_2=0, ldv_irq_line_1_3=0, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_retval_5=0, ldv_spin=1, ldv_state_variable_0=1, ldv_state_variable_1=1, ldv_state_variable_2=1, ldv_state_variable_3=0, ldv_state_variable_4=0, ldv_state_variable_5=0, ldv_timer_list_2={0:0}, ldv_timer_state_2=0, outs={43:0}, port={39:0}, ref_cnt=0, snd_serial_driver={50:0}, snd_serial_driver_group0={0:0}, snd_uart16550_input={49:0}, snd_uart16550_input_group0={0:0}, snd_uart16550_output={48:0}, snd_uart16550_output_group0={0:0}, speed={41:0}, status=0, substream=2147483655, uart={0:0}, uart={0:0}, uart->adaptor=2147483657, uart->adaptor=2147483657, uart->adaptor == 2 || uart->adaptor == 4=0] [L3061] COND FALSE !(uart->adaptor == 2 || uart->adaptor == 4) [L3077] EXPR uart->fifo_count [L3077] EXPR uart->fifo_limit [L3077] (int )uart->fifo_count < (int )uart->fifo_limit && uart->buff_in_count > 0 [L3077] EXPR uart->buff_in_count [L3077] (int )uart->fifo_count < (int )uart->fifo_limit && uart->buff_in_count > 0 VAL [(int )uart->fifo_count < (int )uart->fifo_limit && uart->buff_in_count > 0=1, \old(buff_out = (unsigned int )buff_out & 32767U)=2147483651, __this_module={2147483654:2147483649}, adaptor={45:0}, adaptor_names={35:0}, base={42:0}, buff_out = (unsigned int )buff_out & 32767U=2147483651, c={51:0}, devices={47:0}, droponfull={46:0}, enable={38:0}, id={37:0}, index={36:0}, ins={44:0}, irq={40:0}, LDV_IN_INTERRUPT=2, ldv_irq_1_0=0, ldv_irq_1_1=0, ldv_irq_1_2=0, ldv_irq_1_3=0, ldv_irq_data_1_0={0:0}, ldv_irq_data_1_1={0:0}, ldv_irq_data_1_2={0:0}, ldv_irq_data_1_3={0:0}, ldv_irq_line_1_0=0, ldv_irq_line_1_1=0, ldv_irq_line_1_2=0, ldv_irq_line_1_3=0, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_retval_5=0, ldv_spin=1, ldv_state_variable_0=1, ldv_state_variable_1=1, ldv_state_variable_2=1, ldv_state_variable_3=0, ldv_state_variable_4=0, ldv_state_variable_5=0, ldv_timer_list_2={0:0}, ldv_timer_state_2=0, outs={43:0}, port={39:0}, ref_cnt=0, snd_serial_driver={50:0}, snd_serial_driver_group0={0:0}, snd_uart16550_input={49:0}, snd_uart16550_input_group0={0:0}, snd_uart16550_output={48:0}, snd_uart16550_output_group0={0:0}, speed={41:0}, status=0, substream=2147483655, uart={0:0}, uart={0:0}, uart->buff_in_count=62, uart->fifo_count=2147483647, uart->fifo_limit=2147483648] [L3077] COND TRUE (int )uart->fifo_count < (int )uart->fifo_limit && uart->buff_in_count > 0 [L3075] CALL snd_uart16550_buffer_output(uart) VAL [\old(buff_out = (unsigned int )buff_out & 32767U)=2147483651, __this_module={2147483654:2147483649}, adaptor={45:0}, adaptor_names={35:0}, base={42:0}, buff_out = (unsigned int )buff_out & 32767U=2147483651, devices={47:0}, droponfull={46:0}, enable={38:0}, id={37:0}, index={36:0}, ins={44:0}, irq={40:0}, LDV_IN_INTERRUPT=2, ldv_irq_1_0=0, ldv_irq_1_1=0, ldv_irq_1_2=0, ldv_irq_1_3=0, ldv_irq_data_1_0={0:0}, ldv_irq_data_1_1={0:0}, ldv_irq_data_1_2={0:0}, ldv_irq_data_1_3={0:0}, ldv_irq_line_1_0=0, ldv_irq_line_1_1=0, ldv_irq_line_1_2=0, ldv_irq_line_1_3=0, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_retval_5=0, ldv_spin=1, ldv_state_variable_0=1, ldv_state_variable_1=1, ldv_state_variable_2=1, ldv_state_variable_3=0, ldv_state_variable_4=0, ldv_state_variable_5=0, ldv_timer_list_2={0:0}, ldv_timer_state_2=0, outs={43:0}, port={39:0}, ref_cnt=0, snd_serial_driver={50:0}, snd_serial_driver_group0={0:0}, snd_uart16550_input={49:0}, snd_uart16550_input_group0={0:0}, snd_uart16550_output={48:0}, snd_uart16550_output_group0={0:0}, speed={41:0}, uart={0:0}] [L2993] unsigned short buff_out ; [L2995] EXPR uart->buff_out [L2995] buff_out = (unsigned short )uart->buff_out [L2996] EXPR uart->buff_in_count VAL [\old(buff_out = (unsigned int )buff_out & 32767U)=2147483651, __this_module={2147483654:2147483649}, adaptor={45:0}, adaptor_names={35:0}, base={42:0}, buff_out=58, buff_out = (unsigned int )buff_out & 32767U=2147483651, devices={47:0}, droponfull={46:0}, enable={38:0}, id={37:0}, index={36:0}, ins={44:0}, irq={40:0}, LDV_IN_INTERRUPT=2, ldv_irq_1_0=0, ldv_irq_1_1=0, ldv_irq_1_2=0, ldv_irq_1_3=0, ldv_irq_data_1_0={0:0}, ldv_irq_data_1_1={0:0}, ldv_irq_data_1_2={0:0}, ldv_irq_data_1_3={0:0}, ldv_irq_line_1_0=0, ldv_irq_line_1_1=0, ldv_irq_line_1_2=0, ldv_irq_line_1_3=0, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_retval_5=0, ldv_spin=1, ldv_state_variable_0=1, ldv_state_variable_1=1, ldv_state_variable_2=1, ldv_state_variable_3=0, ldv_state_variable_4=0, ldv_state_variable_5=0, ldv_timer_list_2={0:0}, ldv_timer_state_2=0, outs={43:0}, port={39:0}, ref_cnt=0, snd_serial_driver={50:0}, snd_serial_driver_group0={0:0}, snd_uart16550_input={49:0}, snd_uart16550_input_group0={0:0}, snd_uart16550_output={48:0}, snd_uart16550_output_group0={0:0}, speed={41:0}, uart={0:0}, uart={0:0}, uart->buff_in_count=62] [L2996] COND TRUE uart->buff_in_count > 0 [L2997] EXPR uart->tx_buff[(int )buff_out] [L2997] EXPR uart->base VAL [\old(buff_out = (unsigned int )buff_out & 32767U)=2147483651, __this_module={2147483654:2147483649}, adaptor={45:0}, adaptor_names={35:0}, base={42:0}, buff_out=58, buff_out = (unsigned int )buff_out & 32767U=2147483651, devices={47:0}, droponfull={46:0}, enable={38:0}, id={37:0}, index={36:0}, ins={44:0}, irq={40:0}, LDV_IN_INTERRUPT=2, ldv_irq_1_0=0, ldv_irq_1_1=0, ldv_irq_1_2=0, ldv_irq_1_3=0, ldv_irq_data_1_0={0:0}, ldv_irq_data_1_1={0:0}, ldv_irq_data_1_2={0:0}, ldv_irq_data_1_3={0:0}, ldv_irq_line_1_0=0, ldv_irq_line_1_1=0, ldv_irq_line_1_2=0, ldv_irq_line_1_3=0, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_retval_5=0, ldv_spin=1, ldv_state_variable_0=1, ldv_state_variable_1=1, ldv_state_variable_2=1, ldv_state_variable_3=0, ldv_state_variable_4=0, ldv_state_variable_5=0, ldv_timer_list_2={0:0}, ldv_timer_state_2=0, outs={43:0}, port={39:0}, ref_cnt=0, snd_serial_driver={50:0}, snd_serial_driver_group0={0:0}, snd_uart16550_input={49:0}, snd_uart16550_input_group0={0:0}, snd_uart16550_output={48:0}, snd_uart16550_output_group0={0:0}, speed={41:0}, uart={0:0}, uart={0:0}, uart->base=-4, uart->tx_buff[(int )buff_out]=0] [L2997] FCALL outb((int )uart->tx_buff[(int )buff_out], (int )uart->base) VAL [\old(buff_out = (unsigned int )buff_out & 32767U)=2147483651, __this_module={2147483654:2147483649}, adaptor={45:0}, adaptor_names={35:0}, base={42:0}, buff_out=58, buff_out = (unsigned int )buff_out & 32767U=2147483651, devices={47:0}, droponfull={46:0}, enable={38:0}, id={37:0}, index={36:0}, ins={44:0}, irq={40:0}, LDV_IN_INTERRUPT=2, ldv_irq_1_0=0, ldv_irq_1_1=0, ldv_irq_1_2=0, ldv_irq_1_3=0, ldv_irq_data_1_0={0:0}, ldv_irq_data_1_1={0:0}, ldv_irq_data_1_2={0:0}, ldv_irq_data_1_3={0:0}, ldv_irq_line_1_0=0, ldv_irq_line_1_1=0, ldv_irq_line_1_2=0, ldv_irq_line_1_3=0, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_retval_5=0, ldv_spin=1, ldv_state_variable_0=1, ldv_state_variable_1=1, ldv_state_variable_2=1, ldv_state_variable_3=0, ldv_state_variable_4=0, ldv_state_variable_5=0, ldv_timer_list_2={0:0}, ldv_timer_state_2=0, outs={43:0}, port={39:0}, ref_cnt=0, snd_serial_driver={50:0}, snd_serial_driver_group0={0:0}, snd_uart16550_input={49:0}, snd_uart16550_input_group0={0:0}, snd_uart16550_output={48:0}, snd_uart16550_output_group0={0:0}, speed={41:0}, uart={0:0}, uart={0:0}, uart->base=-4, uart->tx_buff[(int )buff_out]=0] [L2998] EXPR uart->fifo_count VAL [\old(buff_out = (unsigned int )buff_out & 32767U)=2147483651, __this_module={2147483654:2147483649}, adaptor={45:0}, adaptor_names={35:0}, base={42:0}, buff_out=58, buff_out = (unsigned int )buff_out & 32767U=2147483651, devices={47:0}, droponfull={46:0}, enable={38:0}, id={37:0}, index={36:0}, ins={44:0}, irq={40:0}, LDV_IN_INTERRUPT=2, ldv_irq_1_0=0, ldv_irq_1_1=0, ldv_irq_1_2=0, ldv_irq_1_3=0, ldv_irq_data_1_0={0:0}, ldv_irq_data_1_1={0:0}, ldv_irq_data_1_2={0:0}, ldv_irq_data_1_3={0:0}, ldv_irq_line_1_0=0, ldv_irq_line_1_1=0, ldv_irq_line_1_2=0, ldv_irq_line_1_3=0, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_retval_5=0, ldv_spin=1, ldv_state_variable_0=1, ldv_state_variable_1=1, ldv_state_variable_2=1, ldv_state_variable_3=0, ldv_state_variable_4=0, ldv_state_variable_5=0, ldv_timer_list_2={0:0}, ldv_timer_state_2=0, outs={43:0}, port={39:0}, ref_cnt=0, snd_serial_driver={50:0}, snd_serial_driver_group0={0:0}, snd_uart16550_input={49:0}, snd_uart16550_input_group0={0:0}, snd_uart16550_output={48:0}, snd_uart16550_output_group0={0:0}, speed={41:0}, uart={0:0}, uart={0:0}, uart->fifo_count=2147483647] [L2998] (int )uart->fifo_count + 1 VAL [\old(buff_out = (unsigned int )buff_out & 32767U)=2147483651, __this_module={2147483654:2147483649}, adaptor={45:0}, adaptor_names={35:0}, base={42:0}, buff_out=58, buff_out = (unsigned int )buff_out & 32767U=2147483651, devices={47:0}, droponfull={46:0}, enable={38:0}, id={37:0}, index={36:0}, ins={44:0}, irq={40:0}, LDV_IN_INTERRUPT=2, ldv_irq_1_0=0, ldv_irq_1_1=0, ldv_irq_1_2=0, ldv_irq_1_3=0, ldv_irq_data_1_0={0:0}, ldv_irq_data_1_1={0:0}, ldv_irq_data_1_2={0:0}, ldv_irq_data_1_3={0:0}, ldv_irq_line_1_0=0, ldv_irq_line_1_1=0, ldv_irq_line_1_2=0, ldv_irq_line_1_3=0, ldv_retval_0=0, ldv_retval_1=0, ldv_retval_2=0, ldv_retval_3=0, ldv_retval_4=0, ldv_retval_5=0, ldv_spin=1, ldv_state_variable_0=1, ldv_state_variable_1=1, ldv_state_variable_2=1, ldv_state_variable_3=0, ldv_state_variable_4=0, ldv_state_variable_5=0, ldv_timer_list_2={0:0}, ldv_timer_state_2=0, outs={43:0}, port={39:0}, ref_cnt=0, snd_serial_driver={50:0}, snd_serial_driver_group0={0:0}, snd_uart16550_input={49:0}, snd_uart16550_input_group0={0:0}, snd_uart16550_output={48:0}, snd_uart16550_output_group0={0:0}, speed={41:0}, uart={0:0}, uart={0:0}, uart->fifo_count=2147483647] - UnprovableResult [Line: 3025]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 3025]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 3443]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 3443]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 3338]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 3338]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 3769]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 3769]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 3387]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 3387]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 2998]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 2999]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 2999]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 3002]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 3002]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 4090]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 4090]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 4101]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 4101]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 3815]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 3815]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 3817]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 3817]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 4167]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 4167]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 4177]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 4177]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 4215]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 4215]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 4226]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 4226]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 3636]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 3636]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 3352]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 3352]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 3355]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 3355]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 34 procedures, 736 locations, 38 error locations. Started 1 CEGAR loops. OverallTime: 21.6s, OverallIterations: 11, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.1s, AutomataDifference: 11.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 5671 SdHoareTripleChecker+Valid, 7.9s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 5334 mSDsluCounter, 21801 SdHoareTripleChecker+Invalid, 6.8s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 11181 mSDsCounter, 1293 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 3985 IncrementalHoareTripleChecker+Invalid, 5278 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 1293 mSolverCounterUnsat, 10620 mSDtfsCounter, 3985 mSolverCounterSat, 0.2s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 178 GetRequests, 149 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=7034occurred in iteration=10, InterpolantAutomatonStates: 40, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 3.6s AutomataMinimizationTime, 10 MinimizatonAttempts, 2860 StatesRemovedByMinimization, 9 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 1.4s SatisfiabilityAnalysisTime, 2.3s InterpolantComputationTime, 462 NumberOfCodeBlocks, 462 NumberOfCodeBlocksAsserted, 14 NumberOfCheckSat, 405 ConstructedInterpolants, 0 QuantifiedInterpolants, 624 SizeOfPredicates, 0 NumberOfNonLiveVariables, 4314 ConjunctsInSsa, 7 ConjunctsInUnsatCore, 13 InterpolantComputations, 10 PerfectInterpolantSequences, 11/18 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2022-10-16 13:28:06,525 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...