/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/AutomizerC.xml -s ../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_64.epf -i ../../../trunk/examples/svcomp/ldv-linux-3.16-rc1/43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-drivers--input--gameport--ns558.ko-entry_point.cil.out.i -------------------------------------------------------------------------------- This is Ultimate 0.2.0-b8ad66e [2020-10-23 23:26:26,614 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-23 23:26:26,617 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-23 23:26:26,657 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-23 23:26:26,658 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-23 23:26:26,659 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-23 23:26:26,661 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-23 23:26:26,664 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-23 23:26:26,666 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-23 23:26:26,667 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-23 23:26:26,676 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-23 23:26:26,679 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-23 23:26:26,680 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-23 23:26:26,682 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-23 23:26:26,686 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-23 23:26:26,688 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-23 23:26:26,691 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-23 23:26:26,697 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-23 23:26:26,702 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-23 23:26:26,707 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-23 23:26:26,710 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-23 23:26:26,714 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-23 23:26:26,716 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-23 23:26:26,717 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-23 23:26:26,724 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-23 23:26:26,724 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-23 23:26:26,725 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-23 23:26:26,727 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-23 23:26:26,731 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-23 23:26:26,732 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-23 23:26:26,733 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-23 23:26:26,735 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-23 23:26:26,735 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-23 23:26:26,737 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-23 23:26:26,739 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-23 23:26:26,739 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-23 23:26:26,740 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-23 23:26:26,740 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-23 23:26:26,740 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-23 23:26:26,741 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-23 23:26:26,742 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-23 23:26:26,743 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_64.epf [2020-10-23 23:26:26,765 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-23 23:26:26,766 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-23 23:26:26,769 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-23 23:26:26,770 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-23 23:26:26,770 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-23 23:26:26,770 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-23 23:26:26,770 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-23 23:26:26,770 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-23 23:26:26,771 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-23 23:26:26,771 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-23 23:26:26,772 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-23 23:26:26,772 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-23 23:26:26,772 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2020-10-23 23:26:26,772 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-23 23:26:26,773 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-23 23:26:26,774 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-23 23:26:26,774 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-23 23:26:26,774 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2020-10-23 23:26:26,774 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-23 23:26:26,774 INFO L138 SettingsManager]: * Use separate solver for trace checks=false 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-10-23 23:26:27,117 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-23 23:26:27,149 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-23 23:26:27,152 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-23 23:26:27,154 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-23 23:26:27,154 INFO L275 PluginConnector]: CDTParser initialized [2020-10-23 23:26:27,155 INFO L432 ainManager$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--input--gameport--ns558.ko-entry_point.cil.out.i [2020-10-23 23:26:27,247 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b58a112f6/85ec198e17954d39bd764ae1ce6cc039/FLAGee0e360b1 [2020-10-23 23:26:28,037 INFO L306 CDTParser]: Found 1 translation units. [2020-10-23 23:26:28,038 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--input--gameport--ns558.ko-entry_point.cil.out.i [2020-10-23 23:26:28,064 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b58a112f6/85ec198e17954d39bd764ae1ce6cc039/FLAGee0e360b1 [2020-10-23 23:26:28,253 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b58a112f6/85ec198e17954d39bd764ae1ce6cc039 [2020-10-23 23:26:28,255 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-23 23:26:28,263 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-23 23:26:28,266 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-23 23:26:28,266 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-23 23:26:28,270 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-23 23:26:28,271 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.10 11:26:28" (1/1) ... [2020-10-23 23:26:28,275 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7e30b56a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 11:26:28, skipping insertion in model container [2020-10-23 23:26:28,275 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.10 11:26:28" (1/1) ... [2020-10-23 23:26:28,284 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-23 23:26:28,373 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-23 23:26:28,694 WARN L1207 CHandler]: Detected problem Invalid redeclaration of the name show at C: (*show)(struct kobject___0 * , struct attribute___0 * , char * ) [1334] [2020-10-23 23:26:28,695 WARN L1207 CHandler]: Detected problem Invalid redeclaration of the name store at C: (*store)(struct kobject___0 * , struct attribute___0 * , char const * , size_t ) [1335-1336] [2020-10-23 23:26:29,009 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-23 23:26:29,057 INFO L203 MainTranslator]: Completed pre-run [2020-10-23 23:26:29,115 WARN L1207 CHandler]: Detected problem Invalid redeclaration of the name show at C: (*show)(struct kobject___0 * , struct attribute___0 * , char * ) [1334] [2020-10-23 23:26:29,116 WARN L1207 CHandler]: Detected problem Invalid redeclaration of the name store at C: (*store)(struct kobject___0 * , struct attribute___0 * , char const * , size_t ) [1335-1336] [2020-10-23 23:26:29,182 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-23 23:26:29,263 INFO L208 MainTranslator]: Completed translation [2020-10-23 23:26:29,264 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 11:26:29 WrapperNode [2020-10-23 23:26:29,264 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-23 23:26:29,265 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-23 23:26:29,265 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-23 23:26:29,265 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-23 23:26:29,278 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 11:26:29" (1/1) ... [2020-10-23 23:26:29,279 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 11:26:29" (1/1) ... [2020-10-23 23:26:29,306 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 11:26:29" (1/1) ... [2020-10-23 23:26:29,309 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 11:26:29" (1/1) ... [2020-10-23 23:26:29,396 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 11:26:29" (1/1) ... [2020-10-23 23:26:29,402 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 11:26:29" (1/1) ... [2020-10-23 23:26:29,410 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 11:26:29" (1/1) ... [2020-10-23 23:26:29,421 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-23 23:26:29,423 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-23 23:26:29,423 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-23 23:26:29,423 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-23 23:26:29,424 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 11:26:29" (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 [2020-10-23 23:26:29,506 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-23 23:26:29,506 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-23 23:26:29,506 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-23 23:26:29,506 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add [2020-10-23 23:26:29,506 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add_tail [2020-10-23 23:26:29,507 INFO L138 BoogieDeclarations]: Found implementation of procedure list_empty [2020-10-23 23:26:29,507 INFO L138 BoogieDeclarations]: Found implementation of procedure resource_size [2020-10-23 23:26:29,507 INFO L138 BoogieDeclarations]: Found implementation of procedure outb [2020-10-23 23:26:29,507 INFO L138 BoogieDeclarations]: Found implementation of procedure inb [2020-10-23 23:26:29,507 INFO L138 BoogieDeclarations]: Found implementation of procedure kobject_name [2020-10-23 23:26:29,507 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-10-23 23:26:29,508 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2020-10-23 23:26:29,508 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2020-10-23 23:26:29,508 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2020-10-23 23:26:29,508 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_ulong [2020-10-23 23:26:29,508 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2020-10-23 23:26:29,509 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2020-10-23 23:26:29,509 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2020-10-23 23:26:29,509 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_trap [2020-10-23 23:26:29,509 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_name [2020-10-23 23:26:29,509 INFO L138 BoogieDeclarations]: Found implementation of procedure gameport_allocate_port [2020-10-23 23:26:29,509 INFO L138 BoogieDeclarations]: Found implementation of procedure gameport_free_port [2020-10-23 23:26:29,510 INFO L138 BoogieDeclarations]: Found implementation of procedure gameport_set_name [2020-10-23 23:26:29,510 INFO L138 BoogieDeclarations]: Found implementation of procedure pnp_resource_valid [2020-10-23 23:26:29,510 INFO L138 BoogieDeclarations]: Found implementation of procedure pnp_resource_len [2020-10-23 23:26:29,510 INFO L138 BoogieDeclarations]: Found implementation of procedure pnp_port_start [2020-10-23 23:26:29,510 INFO L138 BoogieDeclarations]: Found implementation of procedure pnp_port_valid [2020-10-23 23:26:29,510 INFO L138 BoogieDeclarations]: Found implementation of procedure pnp_port_len [2020-10-23 23:26:29,511 INFO L138 BoogieDeclarations]: Found implementation of procedure ns558_isa_probe [2020-10-23 23:26:29,511 INFO L138 BoogieDeclarations]: Found implementation of procedure ns558_pnp_probe [2020-10-23 23:26:29,511 INFO L138 BoogieDeclarations]: Found implementation of procedure ns558_init [2020-10-23 23:26:29,511 INFO L138 BoogieDeclarations]: Found implementation of procedure ns558_exit [2020-10-23 23:26:29,511 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-23 23:26:29,511 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2020-10-23 23:26:29,512 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags [2020-10-23 23:26:29,512 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags_and_return_some_page [2020-10-23 23:26:29,512 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_nonatomic [2020-10-23 23:26:29,512 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock [2020-10-23 23:26:29,512 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock [2020-10-23 23:26:29,512 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_trylock [2020-10-23 23:26:29,513 INFO L138 BoogieDeclarations]: Found implementation of procedure __gameport_register_port [2020-10-23 23:26:29,513 INFO L138 BoogieDeclarations]: Found implementation of procedure __list_add [2020-10-23 23:26:29,513 INFO L138 BoogieDeclarations]: Found implementation of procedure __release_region [2020-10-23 23:26:29,513 INFO L138 BoogieDeclarations]: Found implementation of procedure __request_region [2020-10-23 23:26:29,513 INFO L138 BoogieDeclarations]: Found implementation of procedure gameport_set_phys [2020-10-23 23:26:29,513 INFO L138 BoogieDeclarations]: Found implementation of procedure gameport_unregister_port [2020-10-23 23:26:29,513 INFO L138 BoogieDeclarations]: Found implementation of procedure kmem_cache_alloc [2020-10-23 23:26:29,514 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2020-10-23 23:26:29,514 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize [2020-10-23 23:26:29,514 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_release_1 [2020-10-23 23:26:29,514 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_some_page [2020-10-23 23:26:29,514 INFO L138 BoogieDeclarations]: Found implementation of procedure msleep [2020-10-23 23:26:29,514 INFO L138 BoogieDeclarations]: Found implementation of procedure pnp_get_resource [2020-10-23 23:26:29,515 INFO L138 BoogieDeclarations]: Found implementation of procedure pnp_register_driver [2020-10-23 23:26:29,515 INFO L138 BoogieDeclarations]: Found implementation of procedure pnp_unregister_driver [2020-10-23 23:26:29,515 INFO L138 BoogieDeclarations]: Found implementation of procedure printk [2020-10-23 23:26:29,515 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcpy [2020-10-23 23:26:29,515 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2020-10-23 23:26:29,515 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2020-10-23 23:26:29,516 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-23 23:26:29,516 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-23 23:26:29,516 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_perror_fail [2020-10-23 23:26:29,516 INFO L130 BoogieDeclarations]: Found specification of procedure __assert [2020-10-23 23:26:29,516 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-23 23:26:29,516 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-23 23:26:29,517 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2020-10-23 23:26:29,517 INFO L130 BoogieDeclarations]: Found specification of procedure printk [2020-10-23 23:26:29,517 INFO L130 BoogieDeclarations]: Found specification of procedure __list_add [2020-10-23 23:26:29,517 INFO L130 BoogieDeclarations]: Found specification of procedure list_add [2020-10-23 23:26:29,517 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-10-23 23:26:29,517 INFO L130 BoogieDeclarations]: Found specification of procedure list_add_tail [2020-10-23 23:26:29,517 INFO L130 BoogieDeclarations]: Found specification of procedure list_empty [2020-10-23 23:26:29,518 INFO L130 BoogieDeclarations]: Found specification of procedure strlcpy [2020-10-23 23:26:29,518 INFO L130 BoogieDeclarations]: Found specification of procedure resource_size [2020-10-23 23:26:29,518 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-23 23:26:29,518 INFO L130 BoogieDeclarations]: Found specification of procedure __request_region [2020-10-23 23:26:29,518 INFO L130 BoogieDeclarations]: Found specification of procedure __release_region [2020-10-23 23:26:29,518 INFO L130 BoogieDeclarations]: Found specification of procedure outb [2020-10-23 23:26:29,519 INFO L130 BoogieDeclarations]: Found specification of procedure inb [2020-10-23 23:26:29,519 INFO L130 BoogieDeclarations]: Found specification of procedure kobject_name [2020-10-23 23:26:29,519 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2020-10-23 23:26:29,519 INFO L130 BoogieDeclarations]: Found specification of procedure kmem_cache_alloc [2020-10-23 23:26:29,519 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2020-10-23 23:26:29,519 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags [2020-10-23 23:26:29,520 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-10-23 23:26:29,520 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2020-10-23 23:26:29,520 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-23 23:26:29,520 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_ulong [2020-10-23 23:26:29,520 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-10-23 23:26:29,520 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2020-10-23 23:26:29,520 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-10-23 23:26:29,521 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2020-10-23 23:26:29,521 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2020-10-23 23:26:29,521 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2020-10-23 23:26:29,521 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_ulong [2020-10-23 23:26:29,521 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2020-10-23 23:26:29,521 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2020-10-23 23:26:29,521 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_trap [2020-10-23 23:26:29,522 INFO L130 BoogieDeclarations]: Found specification of procedure msleep [2020-10-23 23:26:29,522 INFO L130 BoogieDeclarations]: Found specification of procedure dev_name [2020-10-23 23:26:29,522 INFO L130 BoogieDeclarations]: Found specification of procedure __gameport_register_port [2020-10-23 23:26:29,522 INFO L130 BoogieDeclarations]: Found specification of procedure gameport_unregister_port [2020-10-23 23:26:29,522 INFO L130 BoogieDeclarations]: Found specification of procedure gameport_set_phys [2020-10-23 23:26:29,522 INFO L130 BoogieDeclarations]: Found specification of procedure gameport_allocate_port [2020-10-23 23:26:29,523 INFO L130 BoogieDeclarations]: Found specification of procedure gameport_free_port [2020-10-23 23:26:29,523 INFO L130 BoogieDeclarations]: Found specification of procedure gameport_set_name [2020-10-23 23:26:29,523 INFO L130 BoogieDeclarations]: Found specification of procedure pnp_get_resource [2020-10-23 23:26:29,523 INFO L130 BoogieDeclarations]: Found specification of procedure pnp_resource_valid [2020-10-23 23:26:29,523 INFO L130 BoogieDeclarations]: Found specification of procedure pnp_resource_len [2020-10-23 23:26:29,523 INFO L130 BoogieDeclarations]: Found specification of procedure pnp_port_start [2020-10-23 23:26:29,523 INFO L130 BoogieDeclarations]: Found specification of procedure pnp_port_valid [2020-10-23 23:26:29,524 INFO L130 BoogieDeclarations]: Found specification of procedure pnp_port_len [2020-10-23 23:26:29,524 INFO L130 BoogieDeclarations]: Found specification of procedure pnp_register_driver [2020-10-23 23:26:29,524 INFO L130 BoogieDeclarations]: Found specification of procedure pnp_unregister_driver [2020-10-23 23:26:29,524 INFO L130 BoogieDeclarations]: Found specification of procedure ns558_isa_probe [2020-10-23 23:26:29,524 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-23 23:26:29,524 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-10-23 23:26:29,524 INFO L130 BoogieDeclarations]: Found specification of procedure ns558_pnp_probe [2020-10-23 23:26:29,525 INFO L130 BoogieDeclarations]: Found specification of procedure ns558_init [2020-10-23 23:26:29,525 INFO L130 BoogieDeclarations]: Found specification of procedure ns558_exit [2020-10-23 23:26:29,525 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize [2020-10-23 23:26:29,525 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2020-10-23 23:26:29,525 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_release_1 [2020-10-23 23:26:29,525 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-23 23:26:29,525 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_some_page [2020-10-23 23:26:29,526 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags_and_return_some_page [2020-10-23 23:26:29,526 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_nonatomic [2020-10-23 23:26:29,526 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock [2020-10-23 23:26:29,526 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock [2020-10-23 23:26:29,526 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_trylock [2020-10-23 23:26:29,526 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-10-23 23:26:29,526 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-23 23:26:29,527 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-23 23:26:29,527 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-23 23:26:29,527 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2020-10-23 23:26:29,527 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-23 23:26:30,534 INFO L751 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2020-10-23 23:26:31,933 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-23 23:26:31,933 INFO L298 CfgBuilder]: Removed 0 assume(true) statements. [2020-10-23 23:26:31,937 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.10 11:26:31 BoogieIcfgContainer [2020-10-23 23:26:31,937 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-23 23:26:31,939 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-23 23:26:31,939 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-23 23:26:31,943 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-23 23:26:31,943 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.10 11:26:28" (1/3) ... [2020-10-23 23:26:31,944 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@10a44842 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.10 11:26:31, skipping insertion in model container [2020-10-23 23:26:31,944 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 11:26:29" (2/3) ... [2020-10-23 23:26:31,945 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@10a44842 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.10 11:26:31, skipping insertion in model container [2020-10-23 23:26:31,945 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.10 11:26:31" (3/3) ... [2020-10-23 23:26:31,947 INFO L111 eAbstractionObserver]: Analyzing ICFG 43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-drivers--input--gameport--ns558.ko-entry_point.cil.out.i [2020-10-23 23:26:31,960 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:AcceleratedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-23 23:26:31,966 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-23 23:26:31,980 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-23 23:26:32,005 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-23 23:26:32,006 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-23 23:26:32,006 INFO L379 AbstractCegarLoop]: Compute interpolants for AcceleratedInterpolation [2020-10-23 23:26:32,006 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-23 23:26:32,006 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-23 23:26:32,006 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-23 23:26:32,006 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-23 23:26:32,007 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-23 23:26:32,043 INFO L276 IsEmpty]: Start isEmpty. Operand 930 states. [2020-10-23 23:26:32,098 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 477 [2020-10-23 23:26:32,098 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 23:26:32,102 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-23 23:26:32,102 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-23 23:26:32,108 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 23:26:32,109 INFO L82 PathProgramCache]: Analyzing trace with hash 488167784, now seen corresponding path program 1 times [2020-10-23 23:26:32,118 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-23 23:26:32,119 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2034768385] [2020-10-23 23:26:32,119 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 23:26:32,227 INFO L321 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-10-23 23:26:32,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:26:33,212 WARN L193 SmtUtils]: Spent 349.00 ms on a formula simplification that was a NOOP. DAG size: 148 [2020-10-23 23:26:33,215 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 23:26:33,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:26:33,553 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 304 [2020-10-23 23:26:33,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:26:33,567 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 319 [2020-10-23 23:26:33,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:26:33,577 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 334 [2020-10-23 23:26:33,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:26:33,597 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 362 [2020-10-23 23:26:33,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:26:33,629 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 397 [2020-10-23 23:26:33,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:26:33,647 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-10-23 23:26:33,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:26:33,662 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 422 [2020-10-23 23:26:33,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:26:33,668 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 430 [2020-10-23 23:26:33,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:26:33,677 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 435 [2020-10-23 23:26:33,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:26:33,682 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 448 [2020-10-23 23:26:33,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:26:33,687 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 452 [2020-10-23 23:26:33,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 23:26:34,046 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2020-10-23 23:26:34,048 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2034768385] [2020-10-23 23:26:34,050 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-23 23:26:34,050 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-23 23:26:34,051 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2114237567] [2020-10-23 23:26:34,059 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-23 23:26:34,059 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-23 23:26:34,074 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-23 23:26:34,075 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-23 23:26:34,077 INFO L87 Difference]: Start difference. First operand 930 states. Second operand 6 states. [2020-10-23 23:26:34,321 WARN L193 SmtUtils]: Spent 208.00 ms on a formula simplification that was a NOOP. DAG size: 151 [2020-10-23 23:26:38,435 WARN L193 SmtUtils]: Spent 210.00 ms on a formula simplification that was a NOOP. DAG size: 154 [2020-10-23 23:26:41,907 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 23:26:41,908 INFO L93 Difference]: Finished difference Result 1939 states and 2320 transitions. [2020-10-23 23:26:41,909 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-23 23:26:41,910 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 476 [2020-10-23 23:26:41,914 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 23:26:41,947 INFO L225 Difference]: With dead ends: 1939 [2020-10-23 23:26:41,947 INFO L226 Difference]: Without dead ends: 1243 [2020-10-23 23:26:41,960 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2020-10-23 23:26:41,980 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1243 states. [2020-10-23 23:26:42,208 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1243 to 853. [2020-10-23 23:26:42,209 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 853 states. [2020-10-23 23:26:42,215 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 853 states to 853 states and 929 transitions. [2020-10-23 23:26:42,218 INFO L78 Accepts]: Start accepts. Automaton has 853 states and 929 transitions. Word has length 476 [2020-10-23 23:26:42,220 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 23:26:42,220 INFO L481 AbstractCegarLoop]: Abstraction has 853 states and 929 transitions. [2020-10-23 23:26:42,220 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-23 23:26:42,221 INFO L276 IsEmpty]: Start isEmpty. Operand 853 states and 929 transitions. [2020-10-23 23:26:42,233 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 499 [2020-10-23 23:26:42,234 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 23:26:42,234 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-23 23:26:42,235 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-23 23:26:42,235 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-23 23:26:42,236 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 23:26:42,236 INFO L82 PathProgramCache]: Analyzing trace with hash -2133788842, now seen corresponding path program 1 times [2020-10-23 23:26:42,236 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-23 23:26:42,236 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1993810455] [2020-10-23 23:26:42,237 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 23:26:42,356 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.NullPointerException at de.uni_freiburg.informatik.ultimate.icfgtransformer.loopacceleration.fastupr.paraoct.OctagonCalculator.normalizeVarNames(OctagonCalculator.java:153) at de.uni_freiburg.informatik.ultimate.icfgtransformer.loopacceleration.fastupr.FastUPRCore.(FastUPRCore.java:133) at de.uni_freiburg.informatik.ultimate.lib.acceleratedinterpolation.loopaccelerator.Accelerator.fastUprAcceleration(Accelerator.java:109) at de.uni_freiburg.informatik.ultimate.lib.acceleratedinterpolation.loopaccelerator.Accelerator.accelerateLoop(Accelerator.java:89) at de.uni_freiburg.informatik.ultimate.lib.acceleratedinterpolation.AcceleratedInterpolation.acceleratedInterpolationCore(AcceleratedInterpolation.java:285) at de.uni_freiburg.informatik.ultimate.lib.acceleratedinterpolation.AcceleratedInterpolation.(AcceleratedInterpolation.java:227) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModulePreferences.construct(IpTcStrategyModulePreferences.java:147) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:100) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.isCorrect(IpTcStrategyModuleBase.java:56) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.checkFeasibility(AutomatonFreeRefinementEngine.java:241) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:165) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:84) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:74) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:511) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterateInternal(AbstractCegarLoop.java:438) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:372) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarLoopResult.iterate(CegarLoopResult.java:142) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.iterateNew(TraceAbstractionStarter.java:341) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:182) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:134) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:124) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2020-10-23 23:26:42,365 INFO L168 Benchmark]: Toolchain (without parser) took 14105.55 ms. Allocated memory was 151.0 MB in the beginning and 360.7 MB in the end (delta: 209.7 MB). Free memory was 124.0 MB in the beginning and 172.4 MB in the end (delta: -48.4 MB). Peak memory consumption was 162.3 MB. Max. memory is 8.0 GB. [2020-10-23 23:26:42,366 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 151.0 MB. Free memory is still 124.6 MB. There was no memory consumed. Max. memory is 8.0 GB. [2020-10-23 23:26:42,369 INFO L168 Benchmark]: CACSL2BoogieTranslator took 998.74 ms. Allocated memory is still 151.0 MB. Free memory was 123.3 MB in the beginning and 107.7 MB in the end (delta: 15.6 MB). Peak memory consumption was 32.0 MB. Max. memory is 8.0 GB. [2020-10-23 23:26:42,371 INFO L168 Benchmark]: Boogie Preprocessor took 156.67 ms. Allocated memory is still 151.0 MB. Free memory was 107.7 MB in the beginning and 101.4 MB in the end (delta: 6.3 MB). Peak memory consumption was 6.3 MB. Max. memory is 8.0 GB. [2020-10-23 23:26:42,377 INFO L168 Benchmark]: RCFGBuilder took 2514.70 ms. Allocated memory was 151.0 MB in the beginning and 188.7 MB in the end (delta: 37.7 MB). Free memory was 100.9 MB in the beginning and 91.8 MB in the end (delta: 9.1 MB). Peak memory consumption was 54.1 MB. Max. memory is 8.0 GB. [2020-10-23 23:26:42,378 INFO L168 Benchmark]: TraceAbstraction took 10422.49 ms. Allocated memory was 188.7 MB in the beginning and 360.7 MB in the end (delta: 172.0 MB). Free memory was 91.3 MB in the beginning and 172.4 MB in the end (delta: -81.1 MB). Peak memory consumption was 90.9 MB. Max. memory is 8.0 GB. [2020-10-23 23:26:42,390 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 ms. Allocated memory is still 151.0 MB. Free memory is still 124.6 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 998.74 ms. Allocated memory is still 151.0 MB. Free memory was 123.3 MB in the beginning and 107.7 MB in the end (delta: 15.6 MB). Peak memory consumption was 32.0 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 156.67 ms. Allocated memory is still 151.0 MB. Free memory was 107.7 MB in the beginning and 101.4 MB in the end (delta: 6.3 MB). Peak memory consumption was 6.3 MB. Max. memory is 8.0 GB. * RCFGBuilder took 2514.70 ms. Allocated memory was 151.0 MB in the beginning and 188.7 MB in the end (delta: 37.7 MB). Free memory was 100.9 MB in the beginning and 91.8 MB in the end (delta: 9.1 MB). Peak memory consumption was 54.1 MB. Max. memory is 8.0 GB. * TraceAbstraction took 10422.49 ms. Allocated memory was 188.7 MB in the beginning and 360.7 MB in the end (delta: 172.0 MB). Free memory was 91.3 MB in the beginning and 172.4 MB in the end (delta: -81.1 MB). Peak memory consumption was 90.9 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: NullPointerException: null de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: NullPointerException: null: de.uni_freiburg.informatik.ultimate.icfgtransformer.loopacceleration.fastupr.paraoct.OctagonCalculator.normalizeVarNames(OctagonCalculator.java:153) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request...