/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 [2022-10-15 21:20:36,014 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-10-15 21:20:36,017 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-10-15 21:20:36,068 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-10-15 21:20:36,068 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-10-15 21:20:36,073 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-10-15 21:20:36,077 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-10-15 21:20:36,091 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-10-15 21:20:36,093 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-10-15 21:20:36,095 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-10-15 21:20:36,096 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-10-15 21:20:36,097 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-10-15 21:20:36,098 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-10-15 21:20:36,099 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-10-15 21:20:36,101 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-10-15 21:20:36,102 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-10-15 21:20:36,103 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-10-15 21:20:36,104 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-10-15 21:20:36,106 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-10-15 21:20:36,108 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-10-15 21:20:36,110 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-10-15 21:20:36,112 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-10-15 21:20:36,113 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-10-15 21:20:36,114 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-10-15 21:20:36,119 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-10-15 21:20:36,119 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-10-15 21:20:36,120 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-10-15 21:20:36,121 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-10-15 21:20:36,122 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-10-15 21:20:36,123 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-10-15 21:20:36,123 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-10-15 21:20:36,124 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-10-15 21:20:36,125 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-10-15 21:20:36,126 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-10-15 21:20:36,127 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-10-15 21:20:36,128 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-10-15 21:20:36,129 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-10-15 21:20:36,129 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-10-15 21:20:36,129 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-10-15 21:20:36,131 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-10-15 21:20:36,132 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-10-15 21:20:36,133 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 [2022-10-15 21:20:36,175 INFO L113 SettingsManager]: Loading preferences was successful [2022-10-15 21:20:36,176 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-10-15 21:20:36,176 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-10-15 21:20:36,176 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-10-15 21:20:36,178 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-10-15 21:20:36,179 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-10-15 21:20:36,180 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-10-15 21:20:36,181 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-10-15 21:20:36,181 INFO L138 SettingsManager]: * Use SBE=true [2022-10-15 21:20:36,181 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-10-15 21:20:36,181 INFO L138 SettingsManager]: * sizeof long=4 [2022-10-15 21:20:36,184 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-10-15 21:20:36,184 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-10-15 21:20:36,185 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-10-15 21:20:36,185 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-10-15 21:20:36,185 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-10-15 21:20:36,185 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-10-15 21:20:36,185 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-10-15 21:20:36,186 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-10-15 21:20:36,186 INFO L138 SettingsManager]: * sizeof long double=12 [2022-10-15 21:20:36,187 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-10-15 21:20:36,187 INFO L138 SettingsManager]: * Use constant arrays=true [2022-10-15 21:20:36,188 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-10-15 21:20:36,188 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-10-15 21:20:36,188 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-10-15 21:20:36,188 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-10-15 21:20:36,189 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-15 21:20:36,189 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-10-15 21:20:36,189 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-10-15 21:20:36,189 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-10-15 21:20:36,195 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-10-15 21:20:36,195 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-10-15 21:20:36,195 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-10-15 21:20:36,196 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-10-15 21:20:36,592 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-10-15 21:20:36,619 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-10-15 21:20:36,622 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-10-15 21:20:36,624 INFO L271 PluginConnector]: Initializing CDTParser... [2022-10-15 21:20:36,627 INFO L275 PluginConnector]: CDTParser initialized [2022-10-15 21:20:36,630 INFO L432 ainManager$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 [2022-10-15 21:20:36,715 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/013fc3a03/349e1e5aa10a419baa36c3a3f024fcba/FLAG67f8cea28 [2022-10-15 21:20:37,790 INFO L306 CDTParser]: Found 1 translation units. [2022-10-15 21:20:37,792 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 [2022-10-15 21:20:37,842 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/013fc3a03/349e1e5aa10a419baa36c3a3f024fcba/FLAG67f8cea28 [2022-10-15 21:20:38,313 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/013fc3a03/349e1e5aa10a419baa36c3a3f024fcba [2022-10-15 21:20:38,318 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-10-15 21:20:38,327 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-10-15 21:20:38,329 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-10-15 21:20:38,330 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-10-15 21:20:38,334 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-10-15 21:20:38,337 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 09:20:38" (1/1) ... [2022-10-15 21:20:38,339 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@67070922 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 09:20:38, skipping insertion in model container [2022-10-15 21:20:38,340 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 09:20:38" (1/1) ... [2022-10-15 21:20:38,350 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-10-15 21:20:38,469 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-10-15 21:20:38,965 WARN L1251 CHandler]: Detected problem Invalid redeclaration of the name show at C: (*show)(struct kobject___0 * , struct attribute___0 * , char * ) [2482] [2022-10-15 21:20:38,966 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] [2022-10-15 21:20:39,152 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] [2022-10-15 21:20:39,662 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-15 21:20:39,699 INFO L203 MainTranslator]: Completed pre-run [2022-10-15 21:20:39,770 WARN L1251 CHandler]: Detected problem Invalid redeclaration of the name show at C: (*show)(struct kobject___0 * , struct attribute___0 * , char * ) [2482] [2022-10-15 21:20:39,771 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] [2022-10-15 21:20:39,779 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] [2022-10-15 21:20:39,880 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-15 21:20:39,949 INFO L208 MainTranslator]: Completed translation [2022-10-15 21:20:39,950 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 09:20:39 WrapperNode [2022-10-15 21:20:39,950 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-10-15 21:20:39,951 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-10-15 21:20:39,952 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-10-15 21:20:39,952 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-10-15 21:20:39,961 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 09:20:39" (1/1) ... [2022-10-15 21:20:40,031 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 09:20:39" (1/1) ... [2022-10-15 21:20:40,184 INFO L138 Inliner]: procedures = 142, calls = 996, calls flagged for inlining = 73, calls inlined = 71, statements flattened = 2026 [2022-10-15 21:20:40,184 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-10-15 21:20:40,185 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-10-15 21:20:40,186 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-10-15 21:20:40,186 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-10-15 21:20:40,198 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 09:20:39" (1/1) ... [2022-10-15 21:20:40,198 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 09:20:39" (1/1) ... [2022-10-15 21:20:40,222 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 09:20:39" (1/1) ... [2022-10-15 21:20:40,223 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 09:20:39" (1/1) ... [2022-10-15 21:20:40,314 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 09:20:39" (1/1) ... [2022-10-15 21:20:40,343 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 09:20:39" (1/1) ... [2022-10-15 21:20:40,433 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 09:20:39" (1/1) ... [2022-10-15 21:20:40,455 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 09:20:39" (1/1) ... [2022-10-15 21:20:40,483 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-10-15 21:20:40,484 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-10-15 21:20:40,485 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-10-15 21:20:40,485 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-10-15 21:20:40,486 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 09:20:39" (1/1) ... [2022-10-15 21:20:40,497 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-15 21:20:40,570 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-15 21:20:40,588 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) [2022-10-15 21:20:40,606 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 [2022-10-15 21:20:40,677 INFO L130 BoogieDeclarations]: Found specification of procedure snd_uart16550_free [2022-10-15 21:20:40,678 INFO L138 BoogieDeclarations]: Found implementation of procedure snd_uart16550_free [2022-10-15 21:20:40,680 INFO L130 BoogieDeclarations]: Found specification of procedure snd_uart16550_do_close [2022-10-15 21:20:40,681 INFO L138 BoogieDeclarations]: Found implementation of procedure snd_uart16550_do_close [2022-10-15 21:20:40,681 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-10-15 21:20:40,681 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_strcpy [2022-10-15 21:20:40,681 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_strcpy [2022-10-15 21:20:40,681 INFO L130 BoogieDeclarations]: Found specification of procedure snd_uart16550_add_timer [2022-10-15 21:20:40,682 INFO L138 BoogieDeclarations]: Found implementation of procedure snd_uart16550_add_timer [2022-10-15 21:20:40,682 INFO L130 BoogieDeclarations]: Found specification of procedure snd_uart16550_io_loop [2022-10-15 21:20:40,682 INFO L138 BoogieDeclarations]: Found implementation of procedure snd_uart16550_io_loop [2022-10-15 21:20:40,682 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-10-15 21:20:40,683 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-10-15 21:20:40,683 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-10-15 21:20:40,684 INFO L130 BoogieDeclarations]: Found specification of procedure snd_uart16550_del_timer [2022-10-15 21:20:40,684 INFO L138 BoogieDeclarations]: Found implementation of procedure snd_uart16550_del_timer [2022-10-15 21:20:40,684 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock [2022-10-15 21:20:40,684 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock [2022-10-15 21:20:40,684 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-10-15 21:20:40,684 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-10-15 21:20:40,685 INFO L130 BoogieDeclarations]: Found specification of procedure snd_uart16550_buffer_output [2022-10-15 21:20:40,685 INFO L138 BoogieDeclarations]: Found implementation of procedure snd_uart16550_buffer_output [2022-10-15 21:20:40,685 INFO L130 BoogieDeclarations]: Found specification of procedure snd_uart16550_substreams [2022-10-15 21:20:40,685 INFO L138 BoogieDeclarations]: Found implementation of procedure snd_uart16550_substreams [2022-10-15 21:20:40,685 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-10-15 21:20:40,686 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2022-10-15 21:20:40,686 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2022-10-15 21:20:40,686 INFO L130 BoogieDeclarations]: Found specification of procedure snd_uart16550_output_trigger [2022-10-15 21:20:40,686 INFO L138 BoogieDeclarations]: Found implementation of procedure snd_uart16550_output_trigger [2022-10-15 21:20:40,686 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-10-15 21:20:40,686 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-10-15 21:20:40,687 INFO L130 BoogieDeclarations]: Found specification of procedure snd_uart16550_do_open [2022-10-15 21:20:40,687 INFO L138 BoogieDeclarations]: Found implementation of procedure snd_uart16550_do_open [2022-10-15 21:20:40,687 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-10-15 21:20:40,687 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-10-15 21:20:40,687 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-10-15 21:20:40,688 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-10-15 21:20:40,688 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_irq_1 [2022-10-15 21:20:40,688 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_irq_1 [2022-10-15 21:20:40,688 INFO L130 BoogieDeclarations]: Found specification of procedure reg_timer_2 [2022-10-15 21:20:40,688 INFO L138 BoogieDeclarations]: Found implementation of procedure reg_timer_2 [2022-10-15 21:20:40,688 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-10-15 21:20:40,689 INFO L130 BoogieDeclarations]: Found specification of procedure snd_serial_unregister_all [2022-10-15 21:20:40,689 INFO L138 BoogieDeclarations]: Found implementation of procedure snd_serial_unregister_all [2022-10-15 21:20:40,689 INFO L130 BoogieDeclarations]: Found specification of procedure snd_uart16550_output_byte [2022-10-15 21:20:40,690 INFO L138 BoogieDeclarations]: Found implementation of procedure snd_uart16550_output_byte [2022-10-15 21:20:40,690 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock [2022-10-15 21:20:40,691 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock [2022-10-15 21:20:40,691 INFO L130 BoogieDeclarations]: Found specification of procedure platform_device_unregister [2022-10-15 21:20:40,692 INFO L138 BoogieDeclarations]: Found implementation of procedure platform_device_unregister [2022-10-15 21:20:40,692 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2022-10-15 21:20:40,693 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2022-10-15 21:20:40,693 INFO L130 BoogieDeclarations]: Found specification of procedure snd_rawmidi_receive [2022-10-15 21:20:40,693 INFO L138 BoogieDeclarations]: Found implementation of procedure snd_rawmidi_receive [2022-10-15 21:20:40,694 INFO L130 BoogieDeclarations]: Found specification of procedure snd_uart16550_input_trigger [2022-10-15 21:20:40,694 INFO L138 BoogieDeclarations]: Found implementation of procedure snd_uart16550_input_trigger [2022-10-15 21:20:40,694 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-10-15 21:20:40,696 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-10-15 21:20:40,696 INFO L130 BoogieDeclarations]: Found specification of procedure snd_card_free [2022-10-15 21:20:40,696 INFO L138 BoogieDeclarations]: Found implementation of procedure snd_card_free [2022-10-15 21:20:40,697 INFO L130 BoogieDeclarations]: Found specification of procedure platform_get_drvdata [2022-10-15 21:20:40,697 INFO L138 BoogieDeclarations]: Found implementation of procedure platform_get_drvdata [2022-10-15 21:20:40,697 INFO L130 BoogieDeclarations]: Found specification of procedure inb [2022-10-15 21:20:40,698 INFO L138 BoogieDeclarations]: Found implementation of procedure inb [2022-10-15 21:20:40,698 INFO L130 BoogieDeclarations]: Found specification of procedure outb [2022-10-15 21:20:40,699 INFO L138 BoogieDeclarations]: Found implementation of procedure outb [2022-10-15 21:20:40,699 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2022-10-15 21:20:40,700 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2022-10-15 21:20:40,701 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-10-15 21:20:40,701 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2022-10-15 21:20:40,701 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2022-10-15 21:20:40,703 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-10-15 21:20:40,703 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-10-15 21:20:40,703 INFO L130 BoogieDeclarations]: Found specification of procedure snd_rawmidi_set_ops [2022-10-15 21:20:40,703 INFO L138 BoogieDeclarations]: Found implementation of procedure snd_rawmidi_set_ops [2022-10-15 21:20:40,703 INFO L130 BoogieDeclarations]: Found specification of procedure snd_uart16550_write_buffer [2022-10-15 21:20:40,704 INFO L138 BoogieDeclarations]: Found implementation of procedure snd_uart16550_write_buffer [2022-10-15 21:20:40,704 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2022-10-15 21:20:40,704 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2022-10-15 21:20:41,415 INFO L235 CfgBuilder]: Building ICFG [2022-10-15 21:20:41,419 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-10-15 21:20:41,842 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-10-15 21:20:43,762 INFO L276 CfgBuilder]: Performing block encoding [2022-10-15 21:20:43,779 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-10-15 21:20:43,780 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-10-15 21:20:43,783 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 09:20:43 BoogieIcfgContainer [2022-10-15 21:20:43,784 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-10-15 21:20:43,789 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-10-15 21:20:43,790 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-10-15 21:20:43,794 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-10-15 21:20:43,794 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.10 09:20:38" (1/3) ... [2022-10-15 21:20:43,796 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5466bbc3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 09:20:43, skipping insertion in model container [2022-10-15 21:20:43,797 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 09:20:39" (2/3) ... [2022-10-15 21:20:43,797 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5466bbc3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 09:20:43, skipping insertion in model container [2022-10-15 21:20:43,797 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 09:20:43" (3/3) ... [2022-10-15 21:20:43,799 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 [2022-10-15 21:20:43,823 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-10-15 21:20:43,824 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 38 error locations. [2022-10-15 21:20:43,965 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-10-15 21:20:43,977 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;@2cb7d7b5, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-10-15 21:20:43,978 INFO L358 AbstractCegarLoop]: Starting to check reachability of 38 error locations. [2022-10-15 21:20:44,009 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) [2022-10-15 21:20:44,028 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2022-10-15 21:20:44,029 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 21:20:44,029 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 21:20:44,030 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)] === [2022-10-15 21:20:44,037 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 21:20:44,038 INFO L85 PathProgramCache]: Analyzing trace with hash -1357581304, now seen corresponding path program 1 times [2022-10-15 21:20:44,050 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 21:20:44,051 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [257282999] [2022-10-15 21:20:44,051 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 21:20:44,052 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 21:20:44,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:20:44,755 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 21:20:44,756 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 21:20:44,756 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [257282999] [2022-10-15 21:20:44,757 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [257282999] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 21:20:44,757 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 21:20:44,758 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-15 21:20:44,760 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1133134043] [2022-10-15 21:20:44,761 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 21:20:44,767 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-15 21:20:44,767 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 21:20:44,804 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-15 21:20:44,806 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-15 21:20:44,811 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) [2022-10-15 21:20:45,125 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 21:20:45,129 INFO L93 Difference]: Finished difference Result 1968 states and 2823 transitions. [2022-10-15 21:20:45,131 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-15 21:20:45,132 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 [2022-10-15 21:20:45,133 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 21:20:45,170 INFO L225 Difference]: With dead ends: 1968 [2022-10-15 21:20:45,170 INFO L226 Difference]: Without dead ends: 1207 [2022-10-15 21:20:45,185 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 [2022-10-15 21:20:45,190 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 [2022-10-15 21:20:45,191 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] [2022-10-15 21:20:45,215 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1207 states. [2022-10-15 21:20:45,418 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1207 to 1184. [2022-10-15 21:20:45,423 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) [2022-10-15 21:20:45,441 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1184 states to 1184 states and 1671 transitions. [2022-10-15 21:20:45,445 INFO L78 Accepts]: Start accepts. Automaton has 1184 states and 1671 transitions. Word has length 18 [2022-10-15 21:20:45,445 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 21:20:45,446 INFO L495 AbstractCegarLoop]: Abstraction has 1184 states and 1671 transitions. [2022-10-15 21:20:45,447 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) [2022-10-15 21:20:45,447 INFO L276 IsEmpty]: Start isEmpty. Operand 1184 states and 1671 transitions. [2022-10-15 21:20:45,457 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2022-10-15 21:20:45,457 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 21:20:45,457 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] [2022-10-15 21:20:45,458 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-10-15 21:20:45,458 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)] === [2022-10-15 21:20:45,459 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 21:20:45,459 INFO L85 PathProgramCache]: Analyzing trace with hash 1354544776, now seen corresponding path program 1 times [2022-10-15 21:20:45,460 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 21:20:45,460 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2124181849] [2022-10-15 21:20:45,460 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 21:20:45,461 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 21:20:45,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:20:45,700 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-10-15 21:20:45,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:20:45,707 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 21:20:45,707 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 21:20:45,708 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2124181849] [2022-10-15 21:20:45,708 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2124181849] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 21:20:45,708 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 21:20:45,709 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-15 21:20:45,709 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1914975657] [2022-10-15 21:20:45,709 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 21:20:45,711 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-15 21:20:45,711 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 21:20:45,712 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-15 21:20:45,712 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-15 21:20:45,713 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) [2022-10-15 21:20:45,908 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 21:20:45,909 INFO L93 Difference]: Finished difference Result 3467 states and 4907 transitions. [2022-10-15 21:20:45,909 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-15 21:20:45,910 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 [2022-10-15 21:20:45,910 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 21:20:45,931 INFO L225 Difference]: With dead ends: 3467 [2022-10-15 21:20:45,931 INFO L226 Difference]: Without dead ends: 2282 [2022-10-15 21:20:45,940 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 [2022-10-15 21:20:45,942 INFO L413 NwaCegarLoop]: 1110 mSDtfsCounter, 962 mSDsluCounter, 928 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s 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 [2022-10-15 21:20:45,943 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] [2022-10-15 21:20:45,948 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2282 states. [2022-10-15 21:20:46,131 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2282 to 2242. [2022-10-15 21:20:46,138 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) [2022-10-15 21:20:46,158 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2242 states to 2242 states and 3215 transitions. [2022-10-15 21:20:46,160 INFO L78 Accepts]: Start accepts. Automaton has 2242 states and 3215 transitions. Word has length 20 [2022-10-15 21:20:46,160 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 21:20:46,160 INFO L495 AbstractCegarLoop]: Abstraction has 2242 states and 3215 transitions. [2022-10-15 21:20:46,161 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) [2022-10-15 21:20:46,161 INFO L276 IsEmpty]: Start isEmpty. Operand 2242 states and 3215 transitions. [2022-10-15 21:20:46,163 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-10-15 21:20:46,164 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 21:20:46,164 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] [2022-10-15 21:20:46,164 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-10-15 21:20:46,165 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)] === [2022-10-15 21:20:46,165 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 21:20:46,165 INFO L85 PathProgramCache]: Analyzing trace with hash 1786719176, now seen corresponding path program 1 times [2022-10-15 21:20:46,166 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 21:20:46,166 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1574803771] [2022-10-15 21:20:46,166 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 21:20:46,166 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 21:20:46,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:20:46,412 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-10-15 21:20:46,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:20:46,422 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 21:20:46,422 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 21:20:46,422 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1574803771] [2022-10-15 21:20:46,423 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1574803771] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 21:20:46,423 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 21:20:46,423 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-15 21:20:46,423 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1380385826] [2022-10-15 21:20:46,424 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 21:20:46,424 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-15 21:20:46,424 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 21:20:46,425 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-15 21:20:46,425 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-15 21:20:46,426 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) [2022-10-15 21:20:48,489 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 21:20:48,490 INFO L93 Difference]: Finished difference Result 4698 states and 6770 transitions. [2022-10-15 21:20:48,490 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-15 21:20:48,491 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 [2022-10-15 21:20:48,491 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 21:20:48,514 INFO L225 Difference]: With dead ends: 4698 [2022-10-15 21:20:48,514 INFO L226 Difference]: Without dead ends: 2459 [2022-10-15 21:20:48,535 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 [2022-10-15 21:20:48,537 INFO L413 NwaCegarLoop]: 926 mSDtfsCounter, 193 mSDsluCounter, 1070 mSDsCounter, 0 mSdLazyCounter, 721 mSolverCounterSat, 142 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 218 SdHoareTripleChecker+Valid, 1996 SdHoareTripleChecker+Invalid, 863 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 142 IncrementalHoareTripleChecker+Valid, 721 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2022-10-15 21:20:48,540 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [218 Valid, 1996 Invalid, 863 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [142 Valid, 721 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2022-10-15 21:20:48,547 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2459 states. [2022-10-15 21:20:48,724 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2459 to 2261. [2022-10-15 21:20:48,730 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) [2022-10-15 21:20:48,792 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2261 states to 2261 states and 3243 transitions. [2022-10-15 21:20:48,795 INFO L78 Accepts]: Start accepts. Automaton has 2261 states and 3243 transitions. Word has length 25 [2022-10-15 21:20:48,795 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 21:20:48,795 INFO L495 AbstractCegarLoop]: Abstraction has 2261 states and 3243 transitions. [2022-10-15 21:20:48,796 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) [2022-10-15 21:20:48,797 INFO L276 IsEmpty]: Start isEmpty. Operand 2261 states and 3243 transitions. [2022-10-15 21:20:48,799 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2022-10-15 21:20:48,800 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 21:20:48,800 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] [2022-10-15 21:20:48,801 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-10-15 21:20:48,801 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)] === [2022-10-15 21:20:48,802 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 21:20:48,802 INFO L85 PathProgramCache]: Analyzing trace with hash 1451317456, now seen corresponding path program 1 times [2022-10-15 21:20:48,802 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 21:20:48,803 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1410096394] [2022-10-15 21:20:48,803 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 21:20:48,804 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 21:20:48,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:20:49,045 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-10-15 21:20:49,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:20:49,053 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-10-15 21:20:49,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:20:49,065 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-15 21:20:49,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:20:49,071 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 21:20:49,072 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 21:20:49,072 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1410096394] [2022-10-15 21:20:49,072 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1410096394] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 21:20:49,072 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 21:20:49,073 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-10-15 21:20:49,073 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [754862018] [2022-10-15 21:20:49,073 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 21:20:49,074 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-15 21:20:49,074 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 21:20:49,074 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-15 21:20:49,075 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-15 21:20:49,075 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) [2022-10-15 21:20:50,820 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 21:20:50,820 INFO L93 Difference]: Finished difference Result 6623 states and 9495 transitions. [2022-10-15 21:20:50,821 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-15 21:20:50,821 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 [2022-10-15 21:20:50,821 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 21:20:50,860 INFO L225 Difference]: With dead ends: 6623 [2022-10-15 21:20:50,860 INFO L226 Difference]: Without dead ends: 4365 [2022-10-15 21:20:50,873 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 [2022-10-15 21:20:50,881 INFO L413 NwaCegarLoop]: 1115 mSDtfsCounter, 1295 mSDsluCounter, 991 mSDsCounter, 0 mSdLazyCounter, 666 mSolverCounterSat, 361 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s 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, 1.3s IncrementalHoareTripleChecker+Time [2022-10-15 21:20:50,883 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1391 Valid, 2106 Invalid, 1027 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [361 Valid, 666 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2022-10-15 21:20:50,894 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4365 states. [2022-10-15 21:20:51,209 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4365 to 4306. [2022-10-15 21:20:51,219 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) [2022-10-15 21:20:51,246 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4306 states to 4306 states and 6194 transitions. [2022-10-15 21:20:51,247 INFO L78 Accepts]: Start accepts. Automaton has 4306 states and 6194 transitions. Word has length 30 [2022-10-15 21:20:51,248 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 21:20:51,248 INFO L495 AbstractCegarLoop]: Abstraction has 4306 states and 6194 transitions. [2022-10-15 21:20:51,248 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) [2022-10-15 21:20:51,248 INFO L276 IsEmpty]: Start isEmpty. Operand 4306 states and 6194 transitions. [2022-10-15 21:20:51,250 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2022-10-15 21:20:51,251 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 21:20:51,251 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] [2022-10-15 21:20:51,251 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-10-15 21:20:51,252 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)] === [2022-10-15 21:20:51,252 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 21:20:51,252 INFO L85 PathProgramCache]: Analyzing trace with hash 1079249005, now seen corresponding path program 1 times [2022-10-15 21:20:51,253 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 21:20:51,253 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [522916159] [2022-10-15 21:20:51,253 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 21:20:51,253 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 21:20:51,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:20:51,453 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-10-15 21:20:51,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:20:51,469 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-10-15 21:20:51,469 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 21:20:51,470 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [522916159] [2022-10-15 21:20:51,470 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [522916159] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 21:20:51,470 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 21:20:51,470 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-15 21:20:51,474 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1804562511] [2022-10-15 21:20:51,474 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 21:20:51,475 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-15 21:20:51,475 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 21:20:51,475 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-15 21:20:51,479 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-15 21:20:51,480 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) [2022-10-15 21:20:53,446 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 21:20:53,446 INFO L93 Difference]: Finished difference Result 4698 states and 6812 transitions. [2022-10-15 21:20:53,447 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-15 21:20:53,447 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 [2022-10-15 21:20:53,448 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 21:20:53,483 INFO L225 Difference]: With dead ends: 4698 [2022-10-15 21:20:53,484 INFO L226 Difference]: Without dead ends: 4697 [2022-10-15 21:20:53,487 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 [2022-10-15 21:20:53,489 INFO L413 NwaCegarLoop]: 919 mSDtfsCounter, 194 mSDsluCounter, 1052 mSDsCounter, 0 mSdLazyCounter, 708 mSolverCounterSat, 137 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s 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, 1.7s IncrementalHoareTripleChecker+Time [2022-10-15 21:20:53,489 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [219 Valid, 1971 Invalid, 845 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [137 Valid, 708 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2022-10-15 21:20:53,497 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4697 states. [2022-10-15 21:20:53,766 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4697 to 4305. [2022-10-15 21:20:53,779 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) [2022-10-15 21:20:53,806 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4305 states to 4305 states and 6192 transitions. [2022-10-15 21:20:53,806 INFO L78 Accepts]: Start accepts. Automaton has 4305 states and 6192 transitions. Word has length 30 [2022-10-15 21:20:53,807 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 21:20:53,807 INFO L495 AbstractCegarLoop]: Abstraction has 4305 states and 6192 transitions. [2022-10-15 21:20:53,807 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) [2022-10-15 21:20:53,808 INFO L276 IsEmpty]: Start isEmpty. Operand 4305 states and 6192 transitions. [2022-10-15 21:20:53,810 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-10-15 21:20:53,810 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 21:20:53,813 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] [2022-10-15 21:20:53,813 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-10-15 21:20:53,813 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)] === [2022-10-15 21:20:53,814 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 21:20:53,814 INFO L85 PathProgramCache]: Analyzing trace with hash -903018127, now seen corresponding path program 1 times [2022-10-15 21:20:53,814 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 21:20:53,814 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2126133416] [2022-10-15 21:20:53,814 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 21:20:53,815 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 21:20:53,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:20:54,177 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-10-15 21:20:54,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:20:54,186 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 21:20:54,186 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 21:20:54,187 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2126133416] [2022-10-15 21:20:54,187 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2126133416] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-15 21:20:54,187 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1664656192] [2022-10-15 21:20:54,187 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 21:20:54,188 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-15 21:20:54,188 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-15 21:20:54,191 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) [2022-10-15 21:20:54,211 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-10-15 21:20:54,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:20:54,631 INFO L263 TraceCheckSpWp]: Trace formula consists of 1423 conjuncts, 3 conjunts are in the unsatisfiable core [2022-10-15 21:20:54,640 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-15 21:20:54,747 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 21:20:54,747 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-15 21:20:54,748 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1664656192] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 21:20:54,748 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-15 21:20:54,748 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 5 [2022-10-15 21:20:54,749 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [673982079] [2022-10-15 21:20:54,749 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 21:20:54,750 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-15 21:20:54,750 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 21:20:54,750 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-15 21:20:54,751 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-10-15 21:20:54,751 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) [2022-10-15 21:20:55,512 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 21:20:55,512 INFO L93 Difference]: Finished difference Result 5579 states and 8213 transitions. [2022-10-15 21:20:55,513 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-15 21:20:55,516 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 [2022-10-15 21:20:55,518 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 21:20:55,562 INFO L225 Difference]: With dead ends: 5579 [2022-10-15 21:20:55,563 INFO L226 Difference]: Without dead ends: 5578 [2022-10-15 21:20:55,569 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 [2022-10-15 21:20:55,571 INFO L413 NwaCegarLoop]: 1372 mSDtfsCounter, 327 mSDsluCounter, 2018 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s 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, 0.5s IncrementalHoareTripleChecker+Time [2022-10-15 21:20:55,571 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [384 Valid, 3390 Invalid, 28 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-10-15 21:20:55,580 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5578 states. [2022-10-15 21:20:55,917 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5578 to 4268. [2022-10-15 21:20:55,929 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) [2022-10-15 21:20:55,952 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4268 states to 4268 states and 6136 transitions. [2022-10-15 21:20:55,953 INFO L78 Accepts]: Start accepts. Automaton has 4268 states and 6136 transitions. Word has length 31 [2022-10-15 21:20:55,954 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 21:20:55,954 INFO L495 AbstractCegarLoop]: Abstraction has 4268 states and 6136 transitions. [2022-10-15 21:20:55,954 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) [2022-10-15 21:20:55,954 INFO L276 IsEmpty]: Start isEmpty. Operand 4268 states and 6136 transitions. [2022-10-15 21:20:55,956 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2022-10-15 21:20:55,956 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 21:20:55,957 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] [2022-10-15 21:20:55,998 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2022-10-15 21:20:56,172 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 [2022-10-15 21:20:56,173 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)] === [2022-10-15 21:20:56,174 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 21:20:56,174 INFO L85 PathProgramCache]: Analyzing trace with hash 1883844136, now seen corresponding path program 1 times [2022-10-15 21:20:56,175 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 21:20:56,175 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [419903939] [2022-10-15 21:20:56,175 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 21:20:56,176 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 21:20:56,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:20:56,418 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-10-15 21:20:56,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:20:56,427 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-10-15 21:20:56,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:20:56,441 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-15 21:20:56,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:20:56,448 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 21:20:56,448 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 21:20:56,448 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [419903939] [2022-10-15 21:20:56,449 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [419903939] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 21:20:56,449 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 21:20:56,449 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-10-15 21:20:56,449 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [585982696] [2022-10-15 21:20:56,449 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 21:20:56,450 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-15 21:20:56,450 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 21:20:56,450 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-15 21:20:56,451 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-15 21:20:56,451 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) [2022-10-15 21:20:58,217 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 21:20:58,218 INFO L93 Difference]: Finished difference Result 11320 states and 16190 transitions. [2022-10-15 21:20:58,219 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-15 21:20:58,219 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 [2022-10-15 21:20:58,219 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 21:20:58,271 INFO L225 Difference]: With dead ends: 11320 [2022-10-15 21:20:58,271 INFO L226 Difference]: Without dead ends: 7055 [2022-10-15 21:20:58,292 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 [2022-10-15 21:20:58,293 INFO L413 NwaCegarLoop]: 1155 mSDtfsCounter, 1120 mSDsluCounter, 1040 mSDsCounter, 0 mSdLazyCounter, 651 mSolverCounterSat, 312 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s 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, 1.3s IncrementalHoareTripleChecker+Time [2022-10-15 21:20:58,293 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1208 Valid, 2195 Invalid, 963 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [312 Valid, 651 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2022-10-15 21:20:58,303 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7055 states. [2022-10-15 21:20:58,694 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7055 to 6994. [2022-10-15 21:20:58,709 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) [2022-10-15 21:20:58,751 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6994 states to 6994 states and 9956 transitions. [2022-10-15 21:20:58,753 INFO L78 Accepts]: Start accepts. Automaton has 6994 states and 9956 transitions. Word has length 35 [2022-10-15 21:20:58,753 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 21:20:58,753 INFO L495 AbstractCegarLoop]: Abstraction has 6994 states and 9956 transitions. [2022-10-15 21:20:58,753 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) [2022-10-15 21:20:58,754 INFO L276 IsEmpty]: Start isEmpty. Operand 6994 states and 9956 transitions. [2022-10-15 21:20:58,755 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2022-10-15 21:20:58,756 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 21:20:58,756 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] [2022-10-15 21:20:58,756 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-10-15 21:20:58,757 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)] === [2022-10-15 21:20:58,757 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 21:20:58,757 INFO L85 PathProgramCache]: Analyzing trace with hash 883658841, now seen corresponding path program 1 times [2022-10-15 21:20:58,757 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 21:20:58,758 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [499486982] [2022-10-15 21:20:58,758 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 21:20:58,758 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 21:20:58,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:20:59,068 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-10-15 21:20:59,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:20:59,075 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-10-15 21:20:59,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:20:59,080 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 21:20:59,081 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 21:20:59,081 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [499486982] [2022-10-15 21:20:59,081 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [499486982] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-15 21:20:59,082 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1370636693] [2022-10-15 21:20:59,082 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 21:20:59,082 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-15 21:20:59,082 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-15 21:20:59,083 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) [2022-10-15 21:20:59,092 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-10-15 21:20:59,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:20:59,468 INFO L263 TraceCheckSpWp]: Trace formula consists of 1445 conjuncts, 2 conjunts are in the unsatisfiable core [2022-10-15 21:20:59,472 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-15 21:20:59,496 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-10-15 21:20:59,497 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-15 21:20:59,497 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1370636693] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 21:20:59,497 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-15 21:20:59,497 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [5] total 6 [2022-10-15 21:20:59,498 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1787730659] [2022-10-15 21:20:59,498 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 21:20:59,498 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-15 21:20:59,498 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 21:20:59,499 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-15 21:20:59,499 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-10-15 21:20:59,499 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) [2022-10-15 21:20:59,787 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 21:20:59,787 INFO L93 Difference]: Finished difference Result 7041 states and 10021 transitions. [2022-10-15 21:20:59,787 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-15 21:20:59,788 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 [2022-10-15 21:20:59,788 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 21:20:59,830 INFO L225 Difference]: With dead ends: 7041 [2022-10-15 21:20:59,831 INFO L226 Difference]: Without dead ends: 7040 [2022-10-15 21:20:59,836 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 [2022-10-15 21:20:59,837 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 [2022-10-15 21:20:59,838 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] [2022-10-15 21:20:59,849 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7040 states. [2022-10-15 21:21:00,354 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7040 to 7019. [2022-10-15 21:21:00,369 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) [2022-10-15 21:21:00,411 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7019 states to 7019 states and 9990 transitions. [2022-10-15 21:21:00,412 INFO L78 Accepts]: Start accepts. Automaton has 7019 states and 9990 transitions. Word has length 38 [2022-10-15 21:21:00,413 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 21:21:00,413 INFO L495 AbstractCegarLoop]: Abstraction has 7019 states and 9990 transitions. [2022-10-15 21:21:00,414 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) [2022-10-15 21:21:00,414 INFO L276 IsEmpty]: Start isEmpty. Operand 7019 states and 9990 transitions. [2022-10-15 21:21:00,416 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-10-15 21:21:00,417 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 21:21:00,417 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] [2022-10-15 21:21:00,458 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-10-15 21:21:00,630 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 [2022-10-15 21:21:00,631 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)] === [2022-10-15 21:21:00,632 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 21:21:00,632 INFO L85 PathProgramCache]: Analyzing trace with hash 1623620871, now seen corresponding path program 1 times [2022-10-15 21:21:00,633 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 21:21:00,633 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1673085636] [2022-10-15 21:21:00,633 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 21:21:00,634 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 21:21:00,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:21:00,890 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-10-15 21:21:00,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:21:00,897 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-10-15 21:21:00,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:21:00,903 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 21:21:00,904 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 21:21:00,904 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1673085636] [2022-10-15 21:21:00,904 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1673085636] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-15 21:21:00,904 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [540559812] [2022-10-15 21:21:00,905 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 21:21:00,905 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-15 21:21:00,905 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-15 21:21:00,906 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) [2022-10-15 21:21:00,924 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-10-15 21:21:01,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:21:01,315 INFO L263 TraceCheckSpWp]: Trace formula consists of 1446 conjuncts, 2 conjunts are in the unsatisfiable core [2022-10-15 21:21:01,319 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-15 21:21:01,350 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-10-15 21:21:01,350 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-15 21:21:01,350 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [540559812] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 21:21:01,351 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-15 21:21:01,351 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [5] total 6 [2022-10-15 21:21:01,352 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1587615322] [2022-10-15 21:21:01,352 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 21:21:01,353 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-15 21:21:01,354 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 21:21:01,354 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-15 21:21:01,354 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-10-15 21:21:01,355 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) [2022-10-15 21:21:01,684 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 21:21:01,685 INFO L93 Difference]: Finished difference Result 7019 states and 9990 transitions. [2022-10-15 21:21:01,685 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-15 21:21:01,685 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 [2022-10-15 21:21:01,686 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 21:21:01,715 INFO L225 Difference]: With dead ends: 7019 [2022-10-15 21:21:01,715 INFO L226 Difference]: Without dead ends: 7018 [2022-10-15 21:21:01,718 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 [2022-10-15 21:21:01,719 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 [2022-10-15 21:21:01,720 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] [2022-10-15 21:21:01,730 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7018 states. [2022-10-15 21:21:02,073 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7018 to 7018. [2022-10-15 21:21:02,085 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) [2022-10-15 21:21:02,125 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7018 states to 7018 states and 9985 transitions. [2022-10-15 21:21:02,126 INFO L78 Accepts]: Start accepts. Automaton has 7018 states and 9985 transitions. Word has length 39 [2022-10-15 21:21:02,126 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 21:21:02,126 INFO L495 AbstractCegarLoop]: Abstraction has 7018 states and 9985 transitions. [2022-10-15 21:21:02,127 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) [2022-10-15 21:21:02,127 INFO L276 IsEmpty]: Start isEmpty. Operand 7018 states and 9985 transitions. [2022-10-15 21:21:02,129 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2022-10-15 21:21:02,129 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 21:21:02,129 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] [2022-10-15 21:21:02,180 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-10-15 21:21:02,345 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 [2022-10-15 21:21:02,345 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)] === [2022-10-15 21:21:02,346 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 21:21:02,346 INFO L85 PathProgramCache]: Analyzing trace with hash -382470257, now seen corresponding path program 1 times [2022-10-15 21:21:02,347 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 21:21:02,347 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1769207755] [2022-10-15 21:21:02,347 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 21:21:02,347 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 21:21:02,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:21:02,518 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-10-15 21:21:02,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:21:02,541 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-10-15 21:21:02,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:21:02,547 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2022-10-15 21:21:02,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:21:02,554 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-10-15 21:21:02,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:21:02,561 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 21:21:02,561 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 21:21:02,561 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1769207755] [2022-10-15 21:21:02,561 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1769207755] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 21:21:02,561 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 21:21:02,562 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-10-15 21:21:02,562 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1012790001] [2022-10-15 21:21:02,562 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 21:21:02,563 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-10-15 21:21:02,563 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 21:21:02,563 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-10-15 21:21:02,563 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-10-15 21:21:02,564 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) [2022-10-15 21:21:04,931 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 21:21:04,931 INFO L93 Difference]: Finished difference Result 14805 states and 21285 transitions. [2022-10-15 21:21:04,931 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-10-15 21:21:04,932 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 [2022-10-15 21:21:04,932 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 21:21:04,969 INFO L225 Difference]: With dead ends: 14805 [2022-10-15 21:21:04,970 INFO L226 Difference]: Without dead ends: 7790 [2022-10-15 21:21:05,004 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 [2022-10-15 21:21:05,005 INFO L413 NwaCegarLoop]: 873 mSDtfsCounter, 523 mSDsluCounter, 1154 mSDsCounter, 0 mSdLazyCounter, 1178 mSolverCounterSat, 331 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 569 SdHoareTripleChecker+Valid, 2027 SdHoareTripleChecker+Invalid, 1509 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 331 IncrementalHoareTripleChecker+Valid, 1178 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2022-10-15 21:21:05,006 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [569 Valid, 2027 Invalid, 1509 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [331 Valid, 1178 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2022-10-15 21:21:05,017 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7790 states. [2022-10-15 21:21:05,500 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7790 to 7034. [2022-10-15 21:21:05,509 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) [2022-10-15 21:21:05,540 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7034 states to 7034 states and 10001 transitions. [2022-10-15 21:21:05,543 INFO L78 Accepts]: Start accepts. Automaton has 7034 states and 10001 transitions. Word has length 44 [2022-10-15 21:21:05,544 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 21:21:05,544 INFO L495 AbstractCegarLoop]: Abstraction has 7034 states and 10001 transitions. [2022-10-15 21:21:05,544 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) [2022-10-15 21:21:05,544 INFO L276 IsEmpty]: Start isEmpty. Operand 7034 states and 10001 transitions. [2022-10-15 21:21:05,546 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2022-10-15 21:21:05,546 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 21:21:05,546 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] [2022-10-15 21:21:05,547 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-10-15 21:21:05,547 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)] === [2022-10-15 21:21:05,547 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 21:21:05,548 INFO L85 PathProgramCache]: Analyzing trace with hash -1393587507, now seen corresponding path program 1 times [2022-10-15 21:21:05,548 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 21:21:05,548 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [466594275] [2022-10-15 21:21:05,548 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 21:21:05,548 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 21:21:05,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-15 21:21:05,776 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-10-15 21:21:05,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-15 21:21:06,047 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-10-15 21:21:06,048 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-10-15 21:21:06,049 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location snd_uart16550_buffer_outputErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (37 of 38 remaining) [2022-10-15 21:21:06,052 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location snd_uart16550_io_loopErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (36 of 38 remaining) [2022-10-15 21:21:06,052 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location snd_uart16550_io_loopErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (35 of 38 remaining) [2022-10-15 21:21:06,052 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location snd_uart16550_output_triggerErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (34 of 38 remaining) [2022-10-15 21:21:06,053 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location snd_uart16550_output_triggerErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (33 of 38 remaining) [2022-10-15 21:21:06,053 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location snd_uart16550_output_triggerErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (32 of 38 remaining) [2022-10-15 21:21:06,053 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location snd_uart16550_output_triggerErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (31 of 38 remaining) [2022-10-15 21:21:06,053 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location snd_serial_unregister_allErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (30 of 38 remaining) [2022-10-15 21:21:06,054 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location snd_serial_unregister_allErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (29 of 38 remaining) [2022-10-15 21:21:06,054 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location snd_uart16550_output_byteErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (28 of 38 remaining) [2022-10-15 21:21:06,054 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location snd_uart16550_output_byteErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (27 of 38 remaining) [2022-10-15 21:21:06,054 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location snd_uart16550_buffer_outputErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (26 of 38 remaining) [2022-10-15 21:21:06,054 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location snd_uart16550_buffer_outputErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (25 of 38 remaining) [2022-10-15 21:21:06,055 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location snd_uart16550_buffer_outputErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (24 of 38 remaining) [2022-10-15 21:21:06,055 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location snd_uart16550_buffer_outputErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (23 of 38 remaining) [2022-10-15 21:21:06,055 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location snd_uart16550_buffer_outputErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (22 of 38 remaining) [2022-10-15 21:21:06,055 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (21 of 38 remaining) [2022-10-15 21:21:06,055 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (20 of 38 remaining) [2022-10-15 21:21:06,056 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (19 of 38 remaining) [2022-10-15 21:21:06,056 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (18 of 38 remaining) [2022-10-15 21:21:06,056 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (17 of 38 remaining) [2022-10-15 21:21:06,056 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (16 of 38 remaining) [2022-10-15 21:21:06,057 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 38 remaining) [2022-10-15 21:21:06,057 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 38 remaining) [2022-10-15 21:21:06,057 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 38 remaining) [2022-10-15 21:21:06,057 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 38 remaining) [2022-10-15 21:21:06,057 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 38 remaining) [2022-10-15 21:21:06,058 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 38 remaining) [2022-10-15 21:21:06,058 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 38 remaining) [2022-10-15 21:21:06,058 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 38 remaining) [2022-10-15 21:21:06,058 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 38 remaining) [2022-10-15 21:21:06,058 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 38 remaining) [2022-10-15 21:21:06,059 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location snd_uart16550_substreamsErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 38 remaining) [2022-10-15 21:21:06,059 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location snd_uart16550_substreamsErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 38 remaining) [2022-10-15 21:21:06,059 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location snd_uart16550_write_bufferErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 38 remaining) [2022-10-15 21:21:06,059 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location snd_uart16550_write_bufferErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 38 remaining) [2022-10-15 21:21:06,060 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location snd_uart16550_write_bufferErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 38 remaining) [2022-10-15 21:21:06,060 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location snd_uart16550_write_bufferErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 38 remaining) [2022-10-15 21:21:06,060 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-10-15 21:21:06,065 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 21:21:06,069 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-10-15 21:21:06,228 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.10 09:21:06 BoogieIcfgContainer [2022-10-15 21:21:06,228 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-10-15 21:21:06,229 INFO L158 Benchmark]: Toolchain (without parser) took 27907.49ms. Allocated memory was 151.0MB in the beginning and 614.5MB in the end (delta: 463.5MB). Free memory was 119.6MB in the beginning and 371.7MB in the end (delta: -252.2MB). Peak memory consumption was 212.1MB. Max. memory is 8.0GB. [2022-10-15 21:21:06,230 INFO L158 Benchmark]: CDTParser took 0.36ms. Allocated memory is still 151.0MB. Free memory is still 121.3MB. There was no memory consumed. Max. memory is 8.0GB. [2022-10-15 21:21:06,230 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1621.15ms. Allocated memory is still 151.0MB. Free memory was 119.4MB in the beginning and 71.9MB in the end (delta: 47.4MB). Peak memory consumption was 48.9MB. Max. memory is 8.0GB. [2022-10-15 21:21:06,230 INFO L158 Benchmark]: Boogie Procedure Inliner took 233.25ms. Allocated memory is still 151.0MB. Free memory was 71.9MB in the beginning and 58.8MB in the end (delta: 13.1MB). Peak memory consumption was 12.6MB. Max. memory is 8.0GB. [2022-10-15 21:21:06,231 INFO L158 Benchmark]: Boogie Preprocessor took 298.07ms. Allocated memory is still 151.0MB. Free memory was 58.8MB in the beginning and 107.5MB in the end (delta: -48.7MB). Peak memory consumption was 34.6MB. Max. memory is 8.0GB. [2022-10-15 21:21:06,232 INFO L158 Benchmark]: RCFGBuilder took 3299.65ms. Allocated memory was 151.0MB in the beginning and 202.4MB in the end (delta: 51.4MB). Free memory was 107.5MB in the beginning and 92.3MB in the end (delta: 15.2MB). Peak memory consumption was 77.7MB. Max. memory is 8.0GB. [2022-10-15 21:21:06,233 INFO L158 Benchmark]: TraceAbstraction took 22439.16ms. Allocated memory was 202.4MB in the beginning and 614.5MB in the end (delta: 412.1MB). Free memory was 91.8MB in the beginning and 371.7MB in the end (delta: -279.9MB). Peak memory consumption was 131.7MB. Max. memory is 8.0GB. [2022-10-15 21:21:06,235 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.36ms. Allocated memory is still 151.0MB. Free memory is still 121.3MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 1621.15ms. Allocated memory is still 151.0MB. Free memory was 119.4MB in the beginning and 71.9MB in the end (delta: 47.4MB). Peak memory consumption was 48.9MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 233.25ms. Allocated memory is still 151.0MB. Free memory was 71.9MB in the beginning and 58.8MB in the end (delta: 13.1MB). Peak memory consumption was 12.6MB. Max. memory is 8.0GB. * Boogie Preprocessor took 298.07ms. Allocated memory is still 151.0MB. Free memory was 58.8MB in the beginning and 107.5MB in the end (delta: -48.7MB). Peak memory consumption was 34.6MB. Max. memory is 8.0GB. * RCFGBuilder took 3299.65ms. Allocated memory was 151.0MB in the beginning and 202.4MB in the end (delta: 51.4MB). Free memory was 107.5MB in the beginning and 92.3MB in the end (delta: 15.2MB). Peak memory consumption was 77.7MB. Max. memory is 8.0GB. * TraceAbstraction took 22439.16ms. Allocated memory was 202.4MB in the beginning and 614.5MB in the end (delta: 412.1MB). Free memory was 91.8MB in the beginning and 371.7MB in the end (delta: -279.9MB). Peak memory consumption was 131.7MB. 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: 22.2s, OverallIterations: 11, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.1s, AutomataDifference: 12.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 5671 SdHoareTripleChecker+Valid, 8.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 5334 mSDsluCounter, 21808 SdHoareTripleChecker+Invalid, 7.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 11185 mSDsCounter, 1293 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 3988 IncrementalHoareTripleChecker+Invalid, 5281 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 1293 mSolverCounterUnsat, 10623 mSDtfsCounter, 3988 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, 0.2s 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: 3.7s AutomataMinimizationTime, 10 MinimizatonAttempts, 2860 StatesRemovedByMinimization, 9 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 1.4s SatisfiabilityAnalysisTime, 2.1s 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 [2022-10-15 21:21:06,311 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...