java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AbstractInterpretationC.xml -s ../../../trunk/examples/settings/ai/svcomp-Reach-32bit-Automizer_Default+AIv2_INT.epf -i ../../../trunk/examples/svcomp/ldv-linux-3.16-rc1/43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-drivers--block--paride--pt.ko-entry_point.cil.out.i -------------------------------------------------------------------------------- This is Ultimate 0.1.24-673a906-m [2019-10-03 11:48:41,435 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-03 11:48:41,437 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-03 11:48:41,449 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-03 11:48:41,450 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-03 11:48:41,451 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-03 11:48:41,452 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-03 11:48:41,454 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-03 11:48:41,457 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-03 11:48:41,457 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-03 11:48:41,464 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-03 11:48:41,465 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-03 11:48:41,468 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-03 11:48:41,469 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-03 11:48:41,470 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-03 11:48:41,474 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-03 11:48:41,474 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-03 11:48:41,475 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-03 11:48:41,478 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-03 11:48:41,483 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-03 11:48:41,485 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-03 11:48:41,488 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-03 11:48:41,489 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-03 11:48:41,490 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-03 11:48:41,494 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-03 11:48:41,495 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-03 11:48:41,495 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-03 11:48:41,496 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-03 11:48:41,497 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-03 11:48:41,498 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-03 11:48:41,498 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-03 11:48:41,500 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-03 11:48:41,501 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-03 11:48:41,502 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-03 11:48:41,506 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-03 11:48:41,506 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-03 11:48:41,507 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-03 11:48:41,507 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-03 11:48:41,507 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-03 11:48:41,509 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-03 11:48:41,511 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-03 11:48:41,513 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/ai/svcomp-Reach-32bit-Automizer_Default+AIv2_INT.epf [2019-10-03 11:48:41,534 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-03 11:48:41,535 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-03 11:48:41,536 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2019-10-03 11:48:41,536 INFO L138 SettingsManager]: * Log level for plugins=info [2019-10-03 11:48:41,536 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-10-03 11:48:41,537 INFO L138 SettingsManager]: * User list type=DISABLED [2019-10-03 11:48:41,537 INFO L138 SettingsManager]: * Ignore calls to and inside polymorphic procedures=false [2019-10-03 11:48:41,537 INFO L138 SettingsManager]: * Ignore calls to recursive procedures=false [2019-10-03 11:48:41,537 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-10-03 11:48:41,537 INFO L138 SettingsManager]: * Abstract domain=IntervalDomain [2019-10-03 11:48:41,540 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-03 11:48:41,540 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-03 11:48:41,540 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-03 11:48:41,541 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-03 11:48:41,541 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-03 11:48:41,541 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-03 11:48:41,541 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-03 11:48:41,541 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-03 11:48:41,542 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-03 11:48:41,542 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-03 11:48:41,542 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-03 11:48:41,542 INFO L138 SettingsManager]: * Remove goto edges from RCFG=true [2019-10-03 11:48:41,542 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-03 11:48:41,543 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-03 11:48:41,543 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-03 11:48:41,543 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-03 11:48:41,543 INFO L138 SettingsManager]: * Trace refinement strategy=TAIPAN [2019-10-03 11:48:41,544 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-03 11:48:41,544 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-10-03 11:48:41,544 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2019-10-03 11:48:41,595 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-03 11:48:41,608 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-03 11:48:41,611 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-03 11:48:41,613 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-03 11:48:41,613 INFO L275 PluginConnector]: CDTParser initialized [2019-10-03 11:48:41,614 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-linux-3.16-rc1/43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-drivers--block--paride--pt.ko-entry_point.cil.out.i [2019-10-03 11:48:41,686 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b6b916415/e36ba43afb0340279882b1d416e66134/FLAG94b2854e9 [2019-10-03 11:48:42,447 INFO L306 CDTParser]: Found 1 translation units. [2019-10-03 11:48:42,448 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ldv-linux-3.16-rc1/43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-drivers--block--paride--pt.ko-entry_point.cil.out.i [2019-10-03 11:48:42,477 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b6b916415/e36ba43afb0340279882b1d416e66134/FLAG94b2854e9 [2019-10-03 11:48:42,644 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b6b916415/e36ba43afb0340279882b1d416e66134 [2019-10-03 11:48:42,654 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-03 11:48:42,656 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-03 11:48:42,657 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-03 11:48:42,657 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-03 11:48:42,662 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-03 11:48:42,663 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.10 11:48:42" (1/1) ... [2019-10-03 11:48:42,666 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@47be89e9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 11:48:42, skipping insertion in model container [2019-10-03 11:48:42,666 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.10 11:48:42" (1/1) ... [2019-10-03 11:48:42,673 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-03 11:48:42,764 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-03 11:48:43,310 WARN L1068 CHandler]: Detected problem Invalid redeclaration of the name show at C: (*show)(struct kobject___0 * , struct attribute___0 * , char * ) [3048] [2019-10-03 11:48:43,311 WARN L1068 CHandler]: Detected problem Invalid redeclaration of the name store at C: (*store)(struct kobject___0 * , struct attribute___0 * , char const * , size_t ) [3049-3050] [2019-10-03 11:48:43,825 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-03 11:48:43,887 INFO L188 MainTranslator]: Completed pre-run [2019-10-03 11:48:43,964 WARN L1068 CHandler]: Detected problem Invalid redeclaration of the name show at C: (*show)(struct kobject___0 * , struct attribute___0 * , char * ) [3048] [2019-10-03 11:48:43,965 WARN L1068 CHandler]: Detected problem Invalid redeclaration of the name store at C: (*store)(struct kobject___0 * , struct attribute___0 * , char const * , size_t ) [3049-3050] [2019-10-03 11:48:44,185 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-03 11:48:44,410 INFO L192 MainTranslator]: Completed translation [2019-10-03 11:48:44,411 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 11:48:44 WrapperNode [2019-10-03 11:48:44,411 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-03 11:48:44,412 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-03 11:48:44,413 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-03 11:48:44,413 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-03 11:48:44,441 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 11:48:44" (1/1) ... [2019-10-03 11:48:44,442 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 11:48:44" (1/1) ... [2019-10-03 11:48:44,533 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 11:48:44" (1/1) ... [2019-10-03 11:48:44,533 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 11:48:44" (1/1) ... [2019-10-03 11:48:44,675 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 11:48:44" (1/1) ... [2019-10-03 11:48:44,700 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 11:48:44" (1/1) ... [2019-10-03 11:48:44,721 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 11:48:44" (1/1) ... [2019-10-03 11:48:44,745 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-03 11:48:44,746 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-03 11:48:44,747 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-03 11:48:44,747 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-03 11:48:44,749 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 11:48:44" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-03 11:48:44,825 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-03 11:48:44,826 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-03 11:48:44,826 INFO L138 BoogieDeclarations]: Found implementation of procedure PTR_ERR [2019-10-03 11:48:44,826 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2019-10-03 11:48:44,827 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_read [2019-10-03 11:48:44,827 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_set [2019-10-03 11:48:44,827 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_inc [2019-10-03 11:48:44,828 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_dec_and_test [2019-10-03 11:48:44,828 INFO L138 BoogieDeclarations]: Found implementation of procedure __kmalloc [2019-10-03 11:48:44,829 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kmalloc_12 [2019-10-03 11:48:44,829 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2019-10-03 11:48:44,832 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2019-10-03 11:48:44,832 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2019-10-03 11:48:44,832 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_ptr [2019-10-03 11:48:44,833 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_ulong [2019-10-03 11:48:44,833 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2019-10-03 11:48:44,833 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2019-10-03 11:48:44,833 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2019-10-03 11:48:44,834 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_trap [2019-10-03 11:48:44,834 INFO L138 BoogieDeclarations]: Found implementation of procedure iminor [2019-10-03 11:48:44,834 INFO L138 BoogieDeclarations]: Found implementation of procedure register_chrdev [2019-10-03 11:48:44,834 INFO L138 BoogieDeclarations]: Found implementation of procedure unregister_chrdev [2019-10-03 11:48:44,835 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_from_user [2019-10-03 11:48:44,835 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_to_user [2019-10-03 11:48:44,835 INFO L138 BoogieDeclarations]: Found implementation of procedure status_reg [2019-10-03 11:48:44,835 INFO L138 BoogieDeclarations]: Found implementation of procedure read_reg [2019-10-03 11:48:44,835 INFO L138 BoogieDeclarations]: Found implementation of procedure write_reg [2019-10-03 11:48:44,836 INFO L138 BoogieDeclarations]: Found implementation of procedure DRIVE [2019-10-03 11:48:44,836 INFO L138 BoogieDeclarations]: Found implementation of procedure pt_wait [2019-10-03 11:48:44,836 INFO L138 BoogieDeclarations]: Found implementation of procedure pt_command [2019-10-03 11:48:44,836 INFO L138 BoogieDeclarations]: Found implementation of procedure pt_completion [2019-10-03 11:48:44,836 INFO L138 BoogieDeclarations]: Found implementation of procedure pt_req_sense [2019-10-03 11:48:44,836 INFO L138 BoogieDeclarations]: Found implementation of procedure pt_atapi [2019-10-03 11:48:44,837 INFO L138 BoogieDeclarations]: Found implementation of procedure pt_sleep [2019-10-03 11:48:44,837 INFO L138 BoogieDeclarations]: Found implementation of procedure pt_poll_dsc [2019-10-03 11:48:44,838 INFO L138 BoogieDeclarations]: Found implementation of procedure pt_media_access_cmd [2019-10-03 11:48:44,838 INFO L138 BoogieDeclarations]: Found implementation of procedure pt_rewind [2019-10-03 11:48:44,838 INFO L138 BoogieDeclarations]: Found implementation of procedure pt_write_fm [2019-10-03 11:48:44,838 INFO L138 BoogieDeclarations]: Found implementation of procedure pt_reset [2019-10-03 11:48:44,838 INFO L138 BoogieDeclarations]: Found implementation of procedure pt_ready_wait [2019-10-03 11:48:44,839 INFO L138 BoogieDeclarations]: Found implementation of procedure xs [2019-10-03 11:48:44,839 INFO L138 BoogieDeclarations]: Found implementation of procedure xn [2019-10-03 11:48:44,839 INFO L138 BoogieDeclarations]: Found implementation of procedure pt_identify [2019-10-03 11:48:44,839 INFO L138 BoogieDeclarations]: Found implementation of procedure pt_probe [2019-10-03 11:48:44,839 INFO L138 BoogieDeclarations]: Found implementation of procedure pt_detect [2019-10-03 11:48:44,839 INFO L138 BoogieDeclarations]: Found implementation of procedure pt_open [2019-10-03 11:48:44,840 INFO L138 BoogieDeclarations]: Found implementation of procedure pt_ioctl [2019-10-03 11:48:44,840 INFO L138 BoogieDeclarations]: Found implementation of procedure pt_release [2019-10-03 11:48:44,840 INFO L138 BoogieDeclarations]: Found implementation of procedure pt_read [2019-10-03 11:48:44,840 INFO L138 BoogieDeclarations]: Found implementation of procedure pt_write [2019-10-03 11:48:44,840 INFO L138 BoogieDeclarations]: Found implementation of procedure pt_init [2019-10-03 11:48:44,841 INFO L138 BoogieDeclarations]: Found implementation of procedure pt_exit [2019-10-03 11:48:44,841 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_file_operations_1 [2019-10-03 11:48:44,841 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-03 11:48:44,841 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2019-10-03 11:48:44,841 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kmem_cache_alloc_16 [2019-10-03 11:48:44,842 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_register_chrdev_19 [2019-10-03 11:48:44,842 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_unregister_chrdev_20 [2019-10-03 11:48:44,842 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags [2019-10-03 11:48:44,842 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags_and_return_some_page [2019-10-03 11:48:44,843 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_nonatomic [2019-10-03 11:48:44,843 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock [2019-10-03 11:48:44,843 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock [2019-10-03 11:48:44,843 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_trylock [2019-10-03 11:48:44,844 INFO L138 BoogieDeclarations]: Found implementation of procedure __class_create [2019-10-03 11:48:44,844 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2019-10-03 11:48:44,844 INFO L138 BoogieDeclarations]: Found implementation of procedure __copy_from_user_overflow [2019-10-03 11:48:44,844 INFO L138 BoogieDeclarations]: Found implementation of procedure __copy_to_user_overflow [2019-10-03 11:48:44,844 INFO L138 BoogieDeclarations]: Found implementation of procedure __register_chrdev [2019-10-03 11:48:44,845 INFO L138 BoogieDeclarations]: Found implementation of procedure __unregister_chrdev [2019-10-03 11:48:44,845 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_from_user [2019-10-03 11:48:44,846 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_to_user [2019-10-03 11:48:44,846 INFO L138 BoogieDeclarations]: Found implementation of procedure class_destroy [2019-10-03 11:48:44,846 INFO L138 BoogieDeclarations]: Found implementation of procedure device_create [2019-10-03 11:48:44,846 INFO L138 BoogieDeclarations]: Found implementation of procedure device_destroy [2019-10-03 11:48:44,847 INFO L138 BoogieDeclarations]: Found implementation of procedure kmem_cache_alloc [2019-10-03 11:48:44,847 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2019-10-03 11:48:44,847 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize [2019-10-03 11:48:44,847 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_some_page [2019-10-03 11:48:44,848 INFO L138 BoogieDeclarations]: Found implementation of procedure might_fault [2019-10-03 11:48:44,848 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_nested [2019-10-03 11:48:44,849 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2019-10-03 11:48:44,849 INFO L138 BoogieDeclarations]: Found implementation of procedure noop_llseek [2019-10-03 11:48:44,850 INFO L138 BoogieDeclarations]: Found implementation of procedure pi_connect [2019-10-03 11:48:44,850 INFO L138 BoogieDeclarations]: Found implementation of procedure pi_disconnect [2019-10-03 11:48:44,850 INFO L138 BoogieDeclarations]: Found implementation of procedure pi_init [2019-10-03 11:48:44,850 INFO L138 BoogieDeclarations]: Found implementation of procedure pi_read_block [2019-10-03 11:48:44,850 INFO L138 BoogieDeclarations]: Found implementation of procedure pi_read_regr [2019-10-03 11:48:44,851 INFO L138 BoogieDeclarations]: Found implementation of procedure pi_release [2019-10-03 11:48:44,851 INFO L138 BoogieDeclarations]: Found implementation of procedure pi_write_block [2019-10-03 11:48:44,851 INFO L138 BoogieDeclarations]: Found implementation of procedure pi_write_regr [2019-10-03 11:48:44,851 INFO L138 BoogieDeclarations]: Found implementation of procedure printk [2019-10-03 11:48:44,851 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule_timeout_interruptible [2019-10-03 11:48:44,852 INFO L138 BoogieDeclarations]: Found implementation of procedure external_alloc [2019-10-03 11:48:44,852 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2019-10-03 11:48:44,852 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2019-10-03 11:48:44,852 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-03 11:48:44,852 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-03 11:48:44,853 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2019-10-03 11:48:44,853 INFO L130 BoogieDeclarations]: Found specification of procedure printk [2019-10-03 11:48:44,853 INFO L130 BoogieDeclarations]: Found specification of procedure might_fault [2019-10-03 11:48:44,853 INFO L130 BoogieDeclarations]: Found specification of procedure snprintf [2019-10-03 11:48:44,853 INFO L130 BoogieDeclarations]: Found specification of procedure PTR_ERR [2019-10-03 11:48:44,854 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2019-10-03 11:48:44,854 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_read [2019-10-03 11:48:44,854 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-03 11:48:44,910 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_set [2019-10-03 11:48:44,910 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-03 11:48:44,910 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_inc [2019-10-03 11:48:44,911 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_dec_and_test [2019-10-03 11:48:44,911 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_nested [2019-10-03 11:48:44,911 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2019-10-03 11:48:44,911 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2019-10-03 11:48:44,911 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2019-10-03 11:48:44,911 INFO L130 BoogieDeclarations]: Found specification of procedure __kmalloc [2019-10-03 11:48:44,911 INFO L130 BoogieDeclarations]: Found specification of procedure kmem_cache_alloc [2019-10-03 11:48:44,911 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kmem_cache_alloc_16 [2019-10-03 11:48:44,912 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kmalloc_12 [2019-10-03 11:48:44,912 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2019-10-03 11:48:44,912 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags [2019-10-03 11:48:44,912 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-10-03 11:48:44,912 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2019-10-03 11:48:44,912 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-03 11:48:44,912 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_size_t [2019-10-03 11:48:44,913 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_loff_t [2019-10-03 11:48:44,913 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uint [2019-10-03 11:48:44,913 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_ulong [2019-10-03 11:48:44,913 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_pointer [2019-10-03 11:48:44,913 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assume [2019-10-03 11:48:44,913 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-03 11:48:44,914 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2019-10-03 11:48:44,914 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2019-10-03 11:48:44,914 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2019-10-03 11:48:44,914 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_ptr [2019-10-03 11:48:44,914 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_ulong [2019-10-03 11:48:44,914 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2019-10-03 11:48:44,915 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2019-10-03 11:48:44,915 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_trap [2019-10-03 11:48:44,915 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_file_operations_1 [2019-10-03 11:48:44,915 INFO L130 BoogieDeclarations]: Found specification of procedure iminor [2019-10-03 11:48:44,915 INFO L130 BoogieDeclarations]: Found specification of procedure __register_chrdev [2019-10-03 11:48:44,915 INFO L130 BoogieDeclarations]: Found specification of procedure __unregister_chrdev [2019-10-03 11:48:44,915 INFO L130 BoogieDeclarations]: Found specification of procedure register_chrdev [2019-10-03 11:48:44,916 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_register_chrdev_19 [2019-10-03 11:48:44,916 INFO L130 BoogieDeclarations]: Found specification of procedure unregister_chrdev [2019-10-03 11:48:44,916 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_unregister_chrdev_20 [2019-10-03 11:48:44,916 INFO L130 BoogieDeclarations]: Found specification of procedure noop_llseek [2019-10-03 11:48:44,916 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2019-10-03 11:48:44,916 INFO L130 BoogieDeclarations]: Found specification of procedure __class_create [2019-10-03 11:48:44,916 INFO L130 BoogieDeclarations]: Found specification of procedure class_destroy [2019-10-03 11:48:44,917 INFO L130 BoogieDeclarations]: Found specification of procedure device_create [2019-10-03 11:48:44,917 INFO L130 BoogieDeclarations]: Found specification of procedure device_destroy [2019-10-03 11:48:44,917 INFO L130 BoogieDeclarations]: Found specification of procedure schedule_timeout_interruptible [2019-10-03 11:48:44,917 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_from_user [2019-10-03 11:48:44,920 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_to_user [2019-10-03 11:48:44,920 INFO L130 BoogieDeclarations]: Found specification of procedure __copy_from_user_overflow [2019-10-03 11:48:44,920 INFO L130 BoogieDeclarations]: Found specification of procedure __copy_to_user_overflow [2019-10-03 11:48:44,921 INFO L130 BoogieDeclarations]: Found specification of procedure copy_from_user [2019-10-03 11:48:44,921 INFO L130 BoogieDeclarations]: Found specification of procedure copy_to_user [2019-10-03 11:48:44,921 INFO L130 BoogieDeclarations]: Found specification of procedure pi_init [2019-10-03 11:48:44,921 INFO L130 BoogieDeclarations]: Found specification of procedure pi_release [2019-10-03 11:48:44,921 INFO L130 BoogieDeclarations]: Found specification of procedure pi_write_regr [2019-10-03 11:48:44,921 INFO L130 BoogieDeclarations]: Found specification of procedure pi_read_regr [2019-10-03 11:48:44,921 INFO L130 BoogieDeclarations]: Found specification of procedure pi_write_block [2019-10-03 11:48:44,922 INFO L130 BoogieDeclarations]: Found specification of procedure pi_read_block [2019-10-03 11:48:44,922 INFO L130 BoogieDeclarations]: Found specification of procedure pi_connect [2019-10-03 11:48:44,922 INFO L130 BoogieDeclarations]: Found specification of procedure pi_disconnect [2019-10-03 11:48:44,922 INFO L130 BoogieDeclarations]: Found specification of procedure pt_open [2019-10-03 11:48:44,922 INFO L130 BoogieDeclarations]: Found specification of procedure pt_ioctl [2019-10-03 11:48:44,922 INFO L130 BoogieDeclarations]: Found specification of procedure pt_release [2019-10-03 11:48:44,923 INFO L130 BoogieDeclarations]: Found specification of procedure pt_read [2019-10-03 11:48:44,923 INFO L130 BoogieDeclarations]: Found specification of procedure pt_write [2019-10-03 11:48:44,923 INFO L130 BoogieDeclarations]: Found specification of procedure pt_detect [2019-10-03 11:48:44,923 INFO L130 BoogieDeclarations]: Found specification of procedure pt_identify [2019-10-03 11:48:44,923 INFO L130 BoogieDeclarations]: Found specification of procedure status_reg [2019-10-03 11:48:44,923 INFO L130 BoogieDeclarations]: Found specification of procedure read_reg [2019-10-03 11:48:44,923 INFO L130 BoogieDeclarations]: Found specification of procedure write_reg [2019-10-03 11:48:44,923 INFO L130 BoogieDeclarations]: Found specification of procedure DRIVE [2019-10-03 11:48:44,924 INFO L130 BoogieDeclarations]: Found specification of procedure pt_wait [2019-10-03 11:48:44,924 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-03 11:48:44,924 INFO L130 BoogieDeclarations]: Found specification of procedure pt_command [2019-10-03 11:48:44,924 INFO L130 BoogieDeclarations]: Found specification of procedure pt_completion [2019-10-03 11:48:44,924 INFO L130 BoogieDeclarations]: Found specification of procedure pt_req_sense [2019-10-03 11:48:44,924 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-03 11:48:44,924 INFO L130 BoogieDeclarations]: Found specification of procedure pt_atapi [2019-10-03 11:48:44,925 INFO L130 BoogieDeclarations]: Found specification of procedure pt_sleep [2019-10-03 11:48:44,925 INFO L130 BoogieDeclarations]: Found specification of procedure pt_poll_dsc [2019-10-03 11:48:44,925 INFO L130 BoogieDeclarations]: Found specification of procedure pt_media_access_cmd [2019-10-03 11:48:44,925 INFO L130 BoogieDeclarations]: Found specification of procedure pt_rewind [2019-10-03 11:48:44,925 INFO L130 BoogieDeclarations]: Found specification of procedure pt_write_fm [2019-10-03 11:48:44,925 INFO L130 BoogieDeclarations]: Found specification of procedure pt_reset [2019-10-03 11:48:44,926 INFO L130 BoogieDeclarations]: Found specification of procedure pt_ready_wait [2019-10-03 11:48:44,926 INFO L130 BoogieDeclarations]: Found specification of procedure xs [2019-10-03 11:48:44,926 INFO L130 BoogieDeclarations]: Found specification of procedure xn [2019-10-03 11:48:44,926 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-03 11:48:44,926 INFO L130 BoogieDeclarations]: Found specification of procedure pt_probe [2019-10-03 11:48:44,926 INFO L130 BoogieDeclarations]: Found specification of procedure pt_init [2019-10-03 11:48:44,926 INFO L130 BoogieDeclarations]: Found specification of procedure pt_exit [2019-10-03 11:48:44,926 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize [2019-10-03 11:48:44,927 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2019-10-03 11:48:44,927 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-03 11:48:44,927 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_some_page [2019-10-03 11:48:44,927 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags_and_return_some_page [2019-10-03 11:48:44,927 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_nonatomic [2019-10-03 11:48:44,927 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock [2019-10-03 11:48:44,927 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock [2019-10-03 11:48:44,928 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_trylock [2019-10-03 11:48:44,928 INFO L130 BoogieDeclarations]: Found specification of procedure external_alloc [2019-10-03 11:48:44,928 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_long [2019-10-03 11:48:44,928 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-03 11:48:44,928 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-03 11:48:44,928 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-03 11:48:44,928 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2019-10-03 11:48:44,929 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-03 11:48:45,983 INFO L683 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2019-10-03 11:48:53,506 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-03 11:48:53,506 INFO L283 CfgBuilder]: Removed 4 assume(true) statements. [2019-10-03 11:48:53,508 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.10 11:48:53 BoogieIcfgContainer [2019-10-03 11:48:53,508 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-03 11:48:53,509 INFO L113 PluginConnector]: ------------------------Abstract Interpretation---------------------------- [2019-10-03 11:48:53,509 INFO L271 PluginConnector]: Initializing Abstract Interpretation... [2019-10-03 11:48:53,510 INFO L275 PluginConnector]: Abstract Interpretation initialized [2019-10-03 11:48:53,510 INFO L185 PluginConnector]: Executing the observer AbstractInterpretationRcfgObserver from plugin Abstract Interpretation for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.10 11:48:53" (1/1) ... [2019-10-03 11:48:53,563 INFO L101 FixpointEngine]: Starting fixpoint engine with domain IntervalDomain (maxUnwinding=3, maxParallelStates=2) [2019-10-03 11:48:53,719 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2019-10-03 11:48:53,725 INFO L272 AbstractInterpreter]: Visited 2 different actions 2 times. Never merged. Never widened. Performed 165 root evaluator evaluations with a maximum evaluation depth of 0. Performed 165 inverse root evaluator evaluations with a maximum inverse evaluation depth of 0. Never found a fixpoint. Largest state had 348 variables. [2019-10-03 11:48:53,725 INFO L132 PluginConnector]: ------------------------ END Abstract Interpretation---------------------------- [2019-10-03 11:48:53,729 INFO L168 Benchmark]: Toolchain (without parser) took 11071.18 ms. Allocated memory was 137.9 MB in the beginning and 377.5 MB in the end (delta: 239.6 MB). Free memory was 79.4 MB in the beginning and 130.0 MB in the end (delta: -50.7 MB). Peak memory consumption was 188.9 MB. Max. memory is 7.1 GB. [2019-10-03 11:48:53,730 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 137.9 MB. Free memory was 104.0 MB in the beginning and 103.8 MB in the end (delta: 209.8 kB). Peak memory consumption was 209.8 kB. Max. memory is 7.1 GB. [2019-10-03 11:48:53,731 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1755.43 ms. Allocated memory was 137.9 MB in the beginning and 215.0 MB in the end (delta: 77.1 MB). Free memory was 79.1 MB in the beginning and 100.9 MB in the end (delta: -21.8 MB). Peak memory consumption was 69.2 MB. Max. memory is 7.1 GB. [2019-10-03 11:48:53,732 INFO L168 Benchmark]: Boogie Preprocessor took 333.31 ms. Allocated memory is still 215.0 MB. Free memory was 100.9 MB in the beginning and 83.8 MB in the end (delta: 17.2 MB). Peak memory consumption was 17.2 MB. Max. memory is 7.1 GB. [2019-10-03 11:48:53,734 INFO L168 Benchmark]: RCFGBuilder took 8762.50 ms. Allocated memory was 215.0 MB in the beginning and 377.5 MB in the end (delta: 162.5 MB). Free memory was 83.8 MB in the beginning and 143.8 MB in the end (delta: -60.1 MB). Peak memory consumption was 194.1 MB. Max. memory is 7.1 GB. [2019-10-03 11:48:53,735 INFO L168 Benchmark]: Abstract Interpretation took 216.07 ms. Allocated memory is still 377.5 MB. Free memory was 143.8 MB in the beginning and 130.0 MB in the end (delta: 13.8 MB). Peak memory consumption was 13.8 MB. Max. memory is 7.1 GB. [2019-10-03 11:48:53,746 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 137.9 MB. Free memory was 104.0 MB in the beginning and 103.8 MB in the end (delta: 209.8 kB). Peak memory consumption was 209.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 1755.43 ms. Allocated memory was 137.9 MB in the beginning and 215.0 MB in the end (delta: 77.1 MB). Free memory was 79.1 MB in the beginning and 100.9 MB in the end (delta: -21.8 MB). Peak memory consumption was 69.2 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 333.31 ms. Allocated memory is still 215.0 MB. Free memory was 100.9 MB in the beginning and 83.8 MB in the end (delta: 17.2 MB). Peak memory consumption was 17.2 MB. Max. memory is 7.1 GB. * RCFGBuilder took 8762.50 ms. Allocated memory was 215.0 MB in the beginning and 377.5 MB in the end (delta: 162.5 MB). Free memory was 83.8 MB in the beginning and 143.8 MB in the end (delta: -60.1 MB). Peak memory consumption was 194.1 MB. Max. memory is 7.1 GB. * Abstract Interpretation took 216.07 ms. Allocated memory is still 377.5 MB. Free memory was 143.8 MB in the beginning and 130.0 MB in the end (delta: 13.8 MB). Peak memory consumption was 13.8 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2: - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - PositiveResult [Line: 3264]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location RESULT: Ultimate proved your program to be correct! Received shutdown request...