/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-drivers--tty--isicom.ko-entry_point.cil.out.i -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-05d3305-m [2022-10-15 21:19:23,273 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-10-15 21:19:23,276 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-10-15 21:19:23,312 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-10-15 21:19:23,312 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-10-15 21:19:23,314 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-10-15 21:19:23,316 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-10-15 21:19:23,319 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-10-15 21:19:23,321 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-10-15 21:19:23,322 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-10-15 21:19:23,324 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-10-15 21:19:23,325 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-10-15 21:19:23,326 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-10-15 21:19:23,327 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-10-15 21:19:23,328 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-10-15 21:19:23,343 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-10-15 21:19:23,344 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-10-15 21:19:23,345 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-10-15 21:19:23,348 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-10-15 21:19:23,350 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-10-15 21:19:23,352 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-10-15 21:19:23,354 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-10-15 21:19:23,355 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-10-15 21:19:23,357 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-10-15 21:19:23,361 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-10-15 21:19:23,362 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-10-15 21:19:23,362 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-10-15 21:19:23,364 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-10-15 21:19:23,364 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-10-15 21:19:23,365 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-10-15 21:19:23,366 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-10-15 21:19:23,367 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-10-15 21:19:23,368 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-10-15 21:19:23,369 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-10-15 21:19:23,370 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-10-15 21:19:23,371 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-10-15 21:19:23,372 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-10-15 21:19:23,372 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-10-15 21:19:23,372 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-10-15 21:19:23,374 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-10-15 21:19:23,375 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-10-15 21:19:23,376 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 21:19:23,406 INFO L113 SettingsManager]: Loading preferences was successful [2022-10-15 21:19:23,407 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-10-15 21:19:23,407 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-10-15 21:19:23,408 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-10-15 21:19:23,408 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-10-15 21:19:23,409 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-10-15 21:19:23,410 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-10-15 21:19:23,410 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-10-15 21:19:23,410 INFO L138 SettingsManager]: * Use SBE=true [2022-10-15 21:19:23,410 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-10-15 21:19:23,411 INFO L138 SettingsManager]: * sizeof long=4 [2022-10-15 21:19:23,411 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-10-15 21:19:23,411 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-10-15 21:19:23,411 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-10-15 21:19:23,412 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-10-15 21:19:23,412 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-10-15 21:19:23,412 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-10-15 21:19:23,412 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-10-15 21:19:23,412 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-10-15 21:19:23,413 INFO L138 SettingsManager]: * sizeof long double=12 [2022-10-15 21:19:23,413 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-10-15 21:19:23,413 INFO L138 SettingsManager]: * Use constant arrays=true [2022-10-15 21:19:23,413 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-10-15 21:19:23,414 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-10-15 21:19:23,414 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-10-15 21:19:23,414 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-10-15 21:19:23,414 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-15 21:19:23,414 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-10-15 21:19:23,415 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-10-15 21:19:23,415 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-10-15 21:19:23,415 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-10-15 21:19:23,415 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-10-15 21:19:23,416 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-10-15 21:19:23,416 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-10-15 21:19:23,803 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-10-15 21:19:23,841 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-10-15 21:19:23,845 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-10-15 21:19:23,847 INFO L271 PluginConnector]: Initializing CDTParser... [2022-10-15 21:19:23,848 INFO L275 PluginConnector]: CDTParser initialized [2022-10-15 21:19:23,850 INFO L432 ainManager$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-drivers--tty--isicom.ko-entry_point.cil.out.i [2022-10-15 21:19:23,941 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1c7cf98fb/397bc6e37ecd4cd498d3fd39e160a81f/FLAG20e90fdc7 [2022-10-15 21:19:25,002 INFO L306 CDTParser]: Found 1 translation units. [2022-10-15 21:19:25,003 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-drivers--tty--isicom.ko-entry_point.cil.out.i [2022-10-15 21:19:25,069 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1c7cf98fb/397bc6e37ecd4cd498d3fd39e160a81f/FLAG20e90fdc7 [2022-10-15 21:19:25,394 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1c7cf98fb/397bc6e37ecd4cd498d3fd39e160a81f [2022-10-15 21:19:25,397 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-10-15 21:19:25,404 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-10-15 21:19:25,406 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-10-15 21:19:25,406 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-10-15 21:19:25,411 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-10-15 21:19:25,412 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 09:19:25" (1/1) ... [2022-10-15 21:19:25,413 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2fb3d2a7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 09:19:25, skipping insertion in model container [2022-10-15 21:19:25,414 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 09:19:25" (1/1) ... [2022-10-15 21:19:25,423 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-10-15 21:19:25,563 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-10-15 21:19:26,146 WARN L1251 CHandler]: Detected problem Invalid redeclaration of the name show at C: (*show)(struct kobject___0 * , struct attribute___0 * , char * ) [3602] [2022-10-15 21:19:26,149 WARN L1251 CHandler]: Detected problem Invalid redeclaration of the name store at C: (*store)(struct kobject___0 * , struct attribute___0 * , char const * , size_t ) [3603-3604] [2022-10-15 21:19:26,389 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-drivers--tty--isicom.ko-entry_point.cil.out.i[110145,110158] [2022-10-15 21:19:27,173 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-15 21:19:27,604 INFO L203 MainTranslator]: Completed pre-run [2022-10-15 21:19:27,786 WARN L1251 CHandler]: Detected problem Invalid redeclaration of the name show at C: (*show)(struct kobject___0 * , struct attribute___0 * , char * ) [3602] [2022-10-15 21:19:27,787 WARN L1251 CHandler]: Detected problem Invalid redeclaration of the name store at C: (*store)(struct kobject___0 * , struct attribute___0 * , char const * , size_t ) [3603-3604] [2022-10-15 21:19:27,806 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-drivers--tty--isicom.ko-entry_point.cil.out.i[110145,110158] [2022-10-15 21:19:28,158 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-15 21:19:28,308 INFO L208 MainTranslator]: Completed translation [2022-10-15 21:19:28,309 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 09:19:28 WrapperNode [2022-10-15 21:19:28,309 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-10-15 21:19:28,310 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-10-15 21:19:28,311 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-10-15 21:19:28,311 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-10-15 21:19:28,320 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 09:19:28" (1/1) ... [2022-10-15 21:19:28,410 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 09:19:28" (1/1) ... [2022-10-15 21:19:28,639 INFO L138 Inliner]: procedures = 199, calls = 1517, calls flagged for inlining = 95, calls inlined = 93, statements flattened = 3986 [2022-10-15 21:19:28,640 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-10-15 21:19:28,641 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-10-15 21:19:28,641 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-10-15 21:19:28,641 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-10-15 21:19:28,655 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 09:19:28" (1/1) ... [2022-10-15 21:19:28,655 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 09:19:28" (1/1) ... [2022-10-15 21:19:28,715 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 09:19:28" (1/1) ... [2022-10-15 21:19:28,716 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 09:19:28" (1/1) ... [2022-10-15 21:19:28,838 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 09:19:28" (1/1) ... [2022-10-15 21:19:28,861 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 09:19:28" (1/1) ... [2022-10-15 21:19:28,902 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 09:19:28" (1/1) ... [2022-10-15 21:19:28,932 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 09:19:28" (1/1) ... [2022-10-15 21:19:28,972 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-10-15 21:19:28,975 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-10-15 21:19:28,978 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-10-15 21:19:28,979 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-10-15 21:19:28,980 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 09:19:28" (1/1) ... [2022-10-15 21:19:28,988 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-15 21:19:29,002 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-15 21:19:29,020 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 21:19:29,044 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 21:19:29,098 INFO L130 BoogieDeclarations]: Found specification of procedure isicom_start [2022-10-15 21:19:29,098 INFO L138 BoogieDeclarations]: Found implementation of procedure isicom_start [2022-10-15 21:19:29,098 INFO L130 BoogieDeclarations]: Found specification of procedure isicom_set_termios [2022-10-15 21:19:29,098 INFO L138 BoogieDeclarations]: Found implementation of procedure isicom_set_termios [2022-10-15 21:19:29,099 INFO L130 BoogieDeclarations]: Found specification of procedure msleep [2022-10-15 21:19:29,099 INFO L138 BoogieDeclarations]: Found implementation of procedure msleep [2022-10-15 21:19:29,099 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-10-15 21:19:29,099 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-10-15 21:19:29,099 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-10-15 21:19:29,099 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-10-15 21:19:29,099 INFO L130 BoogieDeclarations]: Found specification of procedure tty_kref_put [2022-10-15 21:19:29,100 INFO L138 BoogieDeclarations]: Found implementation of procedure tty_kref_put [2022-10-15 21:19:29,100 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock [2022-10-15 21:19:29,100 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock [2022-10-15 21:19:29,100 INFO L130 BoogieDeclarations]: Found specification of procedure isicom_tiocmset [2022-10-15 21:19:29,100 INFO L138 BoogieDeclarations]: Found implementation of procedure isicom_tiocmset [2022-10-15 21:19:29,100 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_disconnect_3 [2022-10-15 21:19:29,100 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_disconnect_3 [2022-10-15 21:19:29,101 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-10-15 21:19:29,101 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-10-15 21:19:29,101 INFO L130 BoogieDeclarations]: Found specification of procedure pci_release_region [2022-10-15 21:19:29,101 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_release_region [2022-10-15 21:19:29,101 INFO L130 BoogieDeclarations]: Found specification of procedure char_buf_ptr [2022-10-15 21:19:29,101 INFO L138 BoogieDeclarations]: Found implementation of procedure char_buf_ptr [2022-10-15 21:19:29,101 INFO L130 BoogieDeclarations]: Found specification of procedure raise_dtr [2022-10-15 21:19:29,102 INFO L138 BoogieDeclarations]: Found implementation of procedure raise_dtr [2022-10-15 21:19:29,102 INFO L130 BoogieDeclarations]: Found specification of procedure tty_flip_buffer_push [2022-10-15 21:19:29,102 INFO L138 BoogieDeclarations]: Found implementation of procedure tty_flip_buffer_push [2022-10-15 21:19:29,102 INFO L130 BoogieDeclarations]: Found specification of procedure isicom_chars_in_buffer [2022-10-15 21:19:29,102 INFO L138 BoogieDeclarations]: Found implementation of procedure isicom_chars_in_buffer [2022-10-15 21:19:29,102 INFO L130 BoogieDeclarations]: Found specification of procedure tty_insert_flip_char [2022-10-15 21:19:29,102 INFO L138 BoogieDeclarations]: Found implementation of procedure tty_insert_flip_char [2022-10-15 21:19:29,103 INFO L130 BoogieDeclarations]: Found specification of procedure free_irq [2022-10-15 21:19:29,103 INFO L138 BoogieDeclarations]: Found implementation of procedure free_irq [2022-10-15 21:19:29,103 INFO L130 BoogieDeclarations]: Found specification of procedure isicom_flush_buffer [2022-10-15 21:19:29,103 INFO L138 BoogieDeclarations]: Found implementation of procedure isicom_flush_buffer [2022-10-15 21:19:29,103 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2022-10-15 21:19:29,103 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2022-10-15 21:19:29,104 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2022-10-15 21:19:29,104 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2022-10-15 21:19:29,104 INFO L130 BoogieDeclarations]: Found specification of procedure outsw [2022-10-15 21:19:29,104 INFO L138 BoogieDeclarations]: Found implementation of procedure outsw [2022-10-15 21:19:29,104 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-10-15 21:19:29,104 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-10-15 21:19:29,104 INFO L130 BoogieDeclarations]: Found specification of procedure insw [2022-10-15 21:19:29,105 INFO L138 BoogieDeclarations]: Found implementation of procedure insw [2022-10-15 21:19:29,105 INFO L130 BoogieDeclarations]: Found specification of procedure isicom_put_char [2022-10-15 21:19:29,105 INFO L138 BoogieDeclarations]: Found implementation of procedure isicom_put_char [2022-10-15 21:19:29,105 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-10-15 21:19:29,105 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-10-15 21:19:29,105 INFO L130 BoogieDeclarations]: Found specification of procedure pci_get_drvdata [2022-10-15 21:19:29,106 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_get_drvdata [2022-10-15 21:19:29,106 INFO L130 BoogieDeclarations]: Found specification of procedure isicom_write_room [2022-10-15 21:19:29,106 INFO L138 BoogieDeclarations]: Found implementation of procedure isicom_write_room [2022-10-15 21:19:29,106 INFO L130 BoogieDeclarations]: Found specification of procedure isicom_ioctl [2022-10-15 21:19:29,106 INFO L138 BoogieDeclarations]: Found implementation of procedure isicom_ioctl [2022-10-15 21:19:29,106 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock [2022-10-15 21:19:29,107 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock [2022-10-15 21:19:29,107 INFO L130 BoogieDeclarations]: Found specification of procedure drop_dtr [2022-10-15 21:19:29,107 INFO L138 BoogieDeclarations]: Found implementation of procedure drop_dtr [2022-10-15 21:19:29,107 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2022-10-15 21:19:29,107 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2022-10-15 21:19:29,107 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-10-15 21:19:29,107 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-10-15 21:19:29,108 INFO L130 BoogieDeclarations]: Found specification of procedure might_fault [2022-10-15 21:19:29,108 INFO L138 BoogieDeclarations]: Found implementation of procedure might_fault [2022-10-15 21:19:29,108 INFO L130 BoogieDeclarations]: Found specification of procedure put_tty_driver [2022-10-15 21:19:29,108 INFO L138 BoogieDeclarations]: Found implementation of procedure put_tty_driver [2022-10-15 21:19:29,108 INFO L130 BoogieDeclarations]: Found specification of procedure outw [2022-10-15 21:19:29,108 INFO L138 BoogieDeclarations]: Found implementation of procedure outw [2022-10-15 21:19:29,109 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_nested [2022-10-15 21:19:29,109 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_nested [2022-10-15 21:19:29,109 INFO L130 BoogieDeclarations]: Found specification of procedure tty_port_tty_get [2022-10-15 21:19:29,109 INFO L138 BoogieDeclarations]: Found implementation of procedure tty_port_tty_get [2022-10-15 21:19:29,109 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2022-10-15 21:19:29,109 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2022-10-15 21:19:29,110 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-10-15 21:19:29,110 INFO L130 BoogieDeclarations]: Found specification of procedure isicom_dtr_rts [2022-10-15 21:19:29,110 INFO L138 BoogieDeclarations]: Found implementation of procedure isicom_dtr_rts [2022-10-15 21:19:29,110 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2022-10-15 21:19:29,110 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2022-10-15 21:19:29,110 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_from_user [2022-10-15 21:19:29,110 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_from_user [2022-10-15 21:19:29,111 INFO L130 BoogieDeclarations]: Found specification of procedure isicom_config_port [2022-10-15 21:19:29,111 INFO L138 BoogieDeclarations]: Found implementation of procedure isicom_config_port [2022-10-15 21:19:29,111 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-10-15 21:19:29,111 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-10-15 21:19:29,111 INFO L130 BoogieDeclarations]: Found specification of procedure isicom_tiocmget [2022-10-15 21:19:29,111 INFO L138 BoogieDeclarations]: Found implementation of procedure isicom_tiocmget [2022-10-15 21:19:29,111 INFO L130 BoogieDeclarations]: Found specification of procedure isicom_unthrottle [2022-10-15 21:19:29,111 INFO L138 BoogieDeclarations]: Found implementation of procedure isicom_unthrottle [2022-10-15 21:19:29,112 INFO L130 BoogieDeclarations]: Found specification of procedure lock_card [2022-10-15 21:19:29,112 INFO L138 BoogieDeclarations]: Found implementation of procedure lock_card [2022-10-15 21:19:29,112 INFO L130 BoogieDeclarations]: Found specification of procedure isicom_flush_chars [2022-10-15 21:19:29,112 INFO L138 BoogieDeclarations]: Found implementation of procedure isicom_flush_chars [2022-10-15 21:19:29,112 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2022-10-15 21:19:29,112 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2022-10-15 21:19:29,112 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-10-15 21:19:29,113 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_device [2022-10-15 21:19:29,113 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_device [2022-10-15 21:19:29,113 INFO L130 BoogieDeclarations]: Found specification of procedure disable_suitable_irq_1 [2022-10-15 21:19:29,113 INFO L138 BoogieDeclarations]: Found implementation of procedure disable_suitable_irq_1 [2022-10-15 21:19:29,113 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-10-15 21:19:29,113 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-10-15 21:19:29,113 INFO L130 BoogieDeclarations]: Found specification of procedure isicom_carrier_raised [2022-10-15 21:19:29,114 INFO L138 BoogieDeclarations]: Found implementation of procedure isicom_carrier_raised [2022-10-15 21:19:29,114 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-10-15 21:19:29,114 INFO L130 BoogieDeclarations]: Found specification of procedure isicom_hangup [2022-10-15 21:19:29,114 INFO L138 BoogieDeclarations]: Found implementation of procedure isicom_hangup [2022-10-15 21:19:29,114 INFO L130 BoogieDeclarations]: Found specification of procedure isicom_throttle [2022-10-15 21:19:29,114 INFO L138 BoogieDeclarations]: Found implementation of procedure isicom_throttle [2022-10-15 21:19:29,114 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-10-15 21:19:29,115 INFO L130 BoogieDeclarations]: Found specification of procedure tty_wakeup [2022-10-15 21:19:29,115 INFO L138 BoogieDeclarations]: Found implementation of procedure tty_wakeup [2022-10-15 21:19:29,115 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2022-10-15 21:19:29,115 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2022-10-15 21:19:29,115 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-10-15 21:19:29,115 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2022-10-15 21:19:29,115 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_irq_1 [2022-10-15 21:19:29,116 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_irq_1 [2022-10-15 21:19:29,116 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_to_user [2022-10-15 21:19:29,116 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_to_user [2022-10-15 21:19:29,116 INFO L130 BoogieDeclarations]: Found specification of procedure mod_timer [2022-10-15 21:19:29,116 INFO L138 BoogieDeclarations]: Found implementation of procedure mod_timer [2022-10-15 21:19:29,116 INFO L130 BoogieDeclarations]: Found specification of procedure unlock_card [2022-10-15 21:19:29,116 INFO L138 BoogieDeclarations]: Found implementation of procedure unlock_card [2022-10-15 21:19:29,117 INFO L130 BoogieDeclarations]: Found specification of procedure isicom_send_break [2022-10-15 21:19:29,117 INFO L138 BoogieDeclarations]: Found implementation of procedure isicom_send_break [2022-10-15 21:19:29,117 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-10-15 21:19:29,117 INFO L130 BoogieDeclarations]: Found specification of procedure inw [2022-10-15 21:19:29,117 INFO L138 BoogieDeclarations]: Found implementation of procedure inw [2022-10-15 21:19:29,117 INFO L130 BoogieDeclarations]: Found specification of procedure WaitTillCardIsFree [2022-10-15 21:19:29,117 INFO L138 BoogieDeclarations]: Found implementation of procedure WaitTillCardIsFree [2022-10-15 21:19:29,118 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-10-15 21:19:29,118 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-10-15 21:19:29,118 INFO L130 BoogieDeclarations]: Found specification of procedure tty_unregister_driver [2022-10-15 21:19:29,118 INFO L138 BoogieDeclarations]: Found implementation of procedure tty_unregister_driver [2022-10-15 21:19:29,118 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2022-10-15 21:19:29,118 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2022-10-15 21:19:29,768 INFO L235 CfgBuilder]: Building ICFG [2022-10-15 21:19:29,775 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-10-15 21:19:30,618 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-10-15 21:19:46,629 INFO L276 CfgBuilder]: Performing block encoding [2022-10-15 21:19:46,659 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-10-15 21:19:46,659 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-10-15 21:19:46,667 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 09:19:46 BoogieIcfgContainer [2022-10-15 21:19:46,667 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-10-15 21:19:46,673 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-10-15 21:19:46,673 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-10-15 21:19:46,677 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-10-15 21:19:46,678 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.10 09:19:25" (1/3) ... [2022-10-15 21:19:46,679 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@91ee16 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 09:19:46, skipping insertion in model container [2022-10-15 21:19:46,680 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 09:19:28" (2/3) ... [2022-10-15 21:19:46,680 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@91ee16 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 09:19:46, skipping insertion in model container [2022-10-15 21:19:46,680 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 09:19:46" (3/3) ... [2022-10-15 21:19:46,682 INFO L112 eAbstractionObserver]: Analyzing ICFG 43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-drivers--tty--isicom.ko-entry_point.cil.out.i [2022-10-15 21:19:46,714 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-10-15 21:19:46,714 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 128 error locations. [2022-10-15 21:19:46,881 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-10-15 21:19:46,894 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;@4d16e160, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-10-15 21:19:46,895 INFO L358 AbstractCegarLoop]: Starting to check reachability of 128 error locations. [2022-10-15 21:19:46,907 INFO L276 IsEmpty]: Start isEmpty. Operand has 1616 states, 1098 states have (on average 1.5) internal successors, (1647), 1256 states have internal predecessors, (1647), 330 states have call successors, (330), 61 states have call predecessors, (330), 60 states have return successors, (322), 320 states have call predecessors, (322), 322 states have call successors, (322) [2022-10-15 21:19:46,921 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2022-10-15 21:19:46,921 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 21:19:46,922 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 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 21:19:46,923 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ldv_irq_1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, ldv_irq_1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, ldv_irq_1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 125 more)] === [2022-10-15 21:19:46,929 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 21:19:46,930 INFO L85 PathProgramCache]: Analyzing trace with hash -1534133764, now seen corresponding path program 1 times [2022-10-15 21:19:46,942 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 21:19:46,942 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1720659559] [2022-10-15 21:19:46,943 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 21:19:46,943 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 21:19:47,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:19:47,758 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-15 21:19:47,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:19:47,774 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-10-15 21:19:47,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:19:47,785 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-10-15 21:19:47,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:19:47,798 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-10-15 21:19:47,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:19:47,811 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-10-15 21:19:47,812 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 21:19:47,812 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1720659559] [2022-10-15 21:19:47,813 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1720659559] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 21:19:47,813 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 21:19:47,814 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-10-15 21:19:47,816 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1496674500] [2022-10-15 21:19:47,817 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 21:19:47,824 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-15 21:19:47,825 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 21:19:47,879 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-15 21:19:47,880 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-15 21:19:47,888 INFO L87 Difference]: Start difference. First operand has 1616 states, 1098 states have (on average 1.5) internal successors, (1647), 1256 states have internal predecessors, (1647), 330 states have call successors, (330), 61 states have call predecessors, (330), 60 states have return successors, (322), 320 states have call predecessors, (322), 322 states have call successors, (322) Second operand has 4 states, 4 states have (on average 4.5) internal successors, (18), 3 states have internal predecessors, (18), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2022-10-15 21:19:51,664 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-10-15 21:19:55,132 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-10-15 21:19:59,088 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 21:19:59,088 INFO L93 Difference]: Finished difference Result 4823 states and 7132 transitions. [2022-10-15 21:19:59,093 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-15 21:19:59,096 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 4.5) internal successors, (18), 3 states have internal predecessors, (18), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) Word has length 35 [2022-10-15 21:19:59,096 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 21:19:59,168 INFO L225 Difference]: With dead ends: 4823 [2022-10-15 21:19:59,168 INFO L226 Difference]: Without dead ends: 3167 [2022-10-15 21:19:59,188 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 10 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 21:19:59,192 INFO L413 NwaCegarLoop]: 2426 mSDtfsCounter, 2517 mSDsluCounter, 2584 mSDsCounter, 0 mSdLazyCounter, 1744 mSolverCounterSat, 864 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2809 SdHoareTripleChecker+Valid, 5010 SdHoareTripleChecker+Invalid, 2610 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 864 IncrementalHoareTripleChecker+Valid, 1744 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.5s IncrementalHoareTripleChecker+Time [2022-10-15 21:19:59,194 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2809 Valid, 5010 Invalid, 2610 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [864 Valid, 1744 Invalid, 2 Unknown, 0 Unchecked, 10.5s Time] [2022-10-15 21:19:59,222 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3167 states. [2022-10-15 21:19:59,492 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3167 to 2899. [2022-10-15 21:19:59,501 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2899 states, 2060 states have (on average 1.4398058252427184) internal successors, (2966), 2201 states have internal predecessors, (2966), 617 states have call successors, (617), 118 states have call predecessors, (617), 118 states have return successors, (617), 612 states have call predecessors, (617), 617 states have call successors, (617) [2022-10-15 21:19:59,529 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2899 states to 2899 states and 4200 transitions. [2022-10-15 21:19:59,533 INFO L78 Accepts]: Start accepts. Automaton has 2899 states and 4200 transitions. Word has length 35 [2022-10-15 21:19:59,533 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 21:19:59,534 INFO L495 AbstractCegarLoop]: Abstraction has 2899 states and 4200 transitions. [2022-10-15 21:19:59,534 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 4.5) internal successors, (18), 3 states have internal predecessors, (18), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2022-10-15 21:19:59,534 INFO L276 IsEmpty]: Start isEmpty. Operand 2899 states and 4200 transitions. [2022-10-15 21:19:59,538 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2022-10-15 21:19:59,538 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 21:19:59,538 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 1, 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 21:19:59,539 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-10-15 21:19:59,539 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr36ASSERT_VIOLATIONINTEGER_OVERFLOW === [ldv_irq_1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, ldv_irq_1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, ldv_irq_1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 125 more)] === [2022-10-15 21:19:59,540 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 21:19:59,540 INFO L85 PathProgramCache]: Analyzing trace with hash -1175948311, now seen corresponding path program 1 times [2022-10-15 21:19:59,540 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 21:19:59,541 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1394376982] [2022-10-15 21:19:59,541 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 21:19:59,541 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 21:19:59,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:19:59,810 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-15 21:19:59,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:19:59,819 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-10-15 21:19:59,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:19:59,829 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-10-15 21:19:59,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:19:59,839 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-10-15 21:19:59,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:19:59,850 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-10-15 21:19:59,850 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 21:19:59,850 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1394376982] [2022-10-15 21:19:59,851 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1394376982] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 21:19:59,851 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 21:19:59,851 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-15 21:19:59,852 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1674726172] [2022-10-15 21:19:59,852 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 21:19:59,854 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-15 21:19:59,854 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 21:19:59,855 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-15 21:19:59,855 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-15 21:19:59,855 INFO L87 Difference]: Start difference. First operand 2899 states and 4200 transitions. Second operand has 4 states, 3 states have (on average 6.666666666666667) internal successors, (20), 3 states have internal predecessors, (20), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2022-10-15 21:20:04,027 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-10-15 21:20:06,623 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 21:20:06,623 INFO L93 Difference]: Finished difference Result 5995 states and 8768 transitions. [2022-10-15 21:20:06,624 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-15 21:20:06,625 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 6.666666666666667) internal successors, (20), 3 states have internal predecessors, (20), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) Word has length 37 [2022-10-15 21:20:06,625 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 21:20:06,652 INFO L225 Difference]: With dead ends: 5995 [2022-10-15 21:20:06,652 INFO L226 Difference]: Without dead ends: 3107 [2022-10-15 21:20:06,665 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 8 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 21:20:06,667 INFO L413 NwaCegarLoop]: 2115 mSDtfsCounter, 370 mSDsluCounter, 2502 mSDsCounter, 0 mSdLazyCounter, 1457 mSolverCounterSat, 334 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 424 SdHoareTripleChecker+Valid, 4617 SdHoareTripleChecker+Invalid, 1792 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 334 IncrementalHoareTripleChecker+Valid, 1457 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.3s IncrementalHoareTripleChecker+Time [2022-10-15 21:20:06,668 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [424 Valid, 4617 Invalid, 1792 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [334 Valid, 1457 Invalid, 1 Unknown, 0 Unchecked, 6.3s Time] [2022-10-15 21:20:06,674 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3107 states. [2022-10-15 21:20:06,803 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3107 to 2921. [2022-10-15 21:20:06,811 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2921 states, 2082 states have (on average 1.4380403458213256) internal successors, (2994), 2223 states have internal predecessors, (2994), 617 states have call successors, (617), 118 states have call predecessors, (617), 118 states have return successors, (617), 612 states have call predecessors, (617), 617 states have call successors, (617) [2022-10-15 21:20:06,828 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2921 states to 2921 states and 4228 transitions. [2022-10-15 21:20:06,830 INFO L78 Accepts]: Start accepts. Automaton has 2921 states and 4228 transitions. Word has length 37 [2022-10-15 21:20:06,830 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 21:20:06,830 INFO L495 AbstractCegarLoop]: Abstraction has 2921 states and 4228 transitions. [2022-10-15 21:20:06,830 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 6.666666666666667) internal successors, (20), 3 states have internal predecessors, (20), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2022-10-15 21:20:06,831 INFO L276 IsEmpty]: Start isEmpty. Operand 2921 states and 4228 transitions. [2022-10-15 21:20:06,836 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-10-15 21:20:06,837 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 21:20:06,838 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 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 21:20:06,838 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-10-15 21:20:06,842 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting isicom_throttleErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ldv_irq_1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, ldv_irq_1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, ldv_irq_1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 125 more)] === [2022-10-15 21:20:06,843 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 21:20:06,843 INFO L85 PathProgramCache]: Analyzing trace with hash 2130938700, now seen corresponding path program 1 times [2022-10-15 21:20:06,843 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 21:20:06,844 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [950860970] [2022-10-15 21:20:06,844 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 21:20:06,846 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 21:20:06,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:20:07,089 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-15 21:20:07,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:20:07,100 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-10-15 21:20:07,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:20:07,114 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-10-15 21:20:07,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:20:07,127 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-10-15 21:20:07,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:20:07,139 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-10-15 21:20:07,141 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 21:20:07,142 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [950860970] [2022-10-15 21:20:07,142 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [950860970] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 21:20:07,142 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 21:20:07,142 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-10-15 21:20:07,143 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [58855785] [2022-10-15 21:20:07,143 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 21:20:07,143 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-15 21:20:07,143 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 21:20:07,144 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-15 21:20:07,146 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-15 21:20:07,146 INFO L87 Difference]: Start difference. First operand 2921 states and 4228 transitions. Second operand has 4 states, 4 states have (on average 5.25) internal successors, (21), 3 states have internal predecessors, (21), 2 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2022-10-15 21:20:09,662 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-10-15 21:20:14,382 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers []