java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/ldv-linux-3.16-rc1/43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-kernel--locking--locktorture.ko-entry_point.cil.out.i -------------------------------------------------------------------------------- This is Ultimate 0.1.24-13a467a-m [2019-10-14 22:33:29,519 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-14 22:33:29,522 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-14 22:33:29,541 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-14 22:33:29,541 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-14 22:33:29,543 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-14 22:33:29,545 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-14 22:33:29,557 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-14 22:33:29,558 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-14 22:33:29,559 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-14 22:33:29,562 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-14 22:33:29,563 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-14 22:33:29,564 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-14 22:33:29,567 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-14 22:33:29,570 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-14 22:33:29,571 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-14 22:33:29,573 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-14 22:33:29,575 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-14 22:33:29,577 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-14 22:33:29,582 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-14 22:33:29,585 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-14 22:33:29,586 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-14 22:33:29,587 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-14 22:33:29,588 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-14 22:33:29,592 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-14 22:33:29,592 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-14 22:33:29,592 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-14 22:33:29,594 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-14 22:33:29,595 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-14 22:33:29,596 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-14 22:33:29,597 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-14 22:33:29,598 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-14 22:33:29,599 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-14 22:33:29,600 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-14 22:33:29,601 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-14 22:33:29,602 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-14 22:33:29,602 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-14 22:33:29,602 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-14 22:33:29,603 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-14 22:33:29,605 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-14 22:33:29,608 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-14 22:33:29,608 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2019-10-14 22:33:29,626 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-14 22:33:29,626 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-14 22:33:29,628 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-14 22:33:29,628 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-14 22:33:29,628 INFO L138 SettingsManager]: * Use SBE=true [2019-10-14 22:33:29,628 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-14 22:33:29,628 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-14 22:33:29,629 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-14 22:33:29,629 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-14 22:33:29,629 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-14 22:33:29,629 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-14 22:33:29,629 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-14 22:33:29,630 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-14 22:33:29,630 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-14 22:33:29,630 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-14 22:33:29,630 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-14 22:33:29,631 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-14 22:33:29,631 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-14 22:33:29,631 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-14 22:33:29,631 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-14 22:33:29,631 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-14 22:33:29,632 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-14 22:33:29,632 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-14 22:33:29,632 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-14 22:33:29,632 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-14 22:33:29,632 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-14 22:33:29,633 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-14 22:33:29,633 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-14 22:33:29,633 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-10-14 22:33:29,882 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-14 22:33:29,898 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-14 22:33:29,901 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-14 22:33:29,903 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-14 22:33:29,903 INFO L275 PluginConnector]: CDTParser initialized [2019-10-14 22:33:29,904 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-linux-3.16-rc1/43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-kernel--locking--locktorture.ko-entry_point.cil.out.i [2019-10-14 22:33:29,975 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/68f0bfa15/d1fcb155740e4ff49293a02ffe7697fa/FLAG2f118bc45 [2019-10-14 22:33:30,605 INFO L306 CDTParser]: Found 1 translation units. [2019-10-14 22:33:30,606 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ldv-linux-3.16-rc1/43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-kernel--locking--locktorture.ko-entry_point.cil.out.i [2019-10-14 22:33:30,643 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/68f0bfa15/d1fcb155740e4ff49293a02ffe7697fa/FLAG2f118bc45 [2019-10-14 22:33:30,780 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/68f0bfa15/d1fcb155740e4ff49293a02ffe7697fa [2019-10-14 22:33:30,789 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-14 22:33:30,790 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-14 22:33:30,791 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-14 22:33:30,792 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-14 22:33:30,795 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-14 22:33:30,796 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 10:33:30" (1/1) ... [2019-10-14 22:33:30,799 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@66aab1b1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 10:33:30, skipping insertion in model container [2019-10-14 22:33:30,799 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 10:33:30" (1/1) ... [2019-10-14 22:33:30,806 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-14 22:33:30,886 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-14 22:33:31,362 WARN L1068 CHandler]: Detected problem Invalid redeclaration of the name show at C: (*show)(struct kobject___0 * , struct attribute___0 * , char * ) [1753] [2019-10-14 22:33:31,363 WARN L1068 CHandler]: Detected problem Invalid redeclaration of the name store at C: (*store)(struct kobject___0 * , struct attribute___0 * , char const * , size_t ) [1754-1755] [2019-10-14 22:33:31,803 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-14 22:33:31,839 INFO L188 MainTranslator]: Completed pre-run [2019-10-14 22:33:31,909 WARN L1068 CHandler]: Detected problem Invalid redeclaration of the name show at C: (*show)(struct kobject___0 * , struct attribute___0 * , char * ) [1753] [2019-10-14 22:33:31,910 WARN L1068 CHandler]: Detected problem Invalid redeclaration of the name store at C: (*store)(struct kobject___0 * , struct attribute___0 * , char const * , size_t ) [1754-1755] [2019-10-14 22:33:31,975 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-14 22:33:32,064 INFO L192 MainTranslator]: Completed translation [2019-10-14 22:33:32,065 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 10:33:32 WrapperNode [2019-10-14 22:33:32,065 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-14 22:33:32,066 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-14 22:33:32,066 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-14 22:33:32,066 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-14 22:33:32,081 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 10:33:32" (1/1) ... [2019-10-14 22:33:32,081 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 10:33:32" (1/1) ... [2019-10-14 22:33:32,137 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 10:33:32" (1/1) ... [2019-10-14 22:33:32,138 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 10:33:32" (1/1) ... [2019-10-14 22:33:32,221 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 10:33:32" (1/1) ... [2019-10-14 22:33:32,232 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 10:33:32" (1/1) ... [2019-10-14 22:33:32,243 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 10:33:32" (1/1) ... [2019-10-14 22:33:32,257 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-14 22:33:32,258 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-14 22:33:32,258 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-14 22:33:32,258 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-14 22:33:32,259 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 10:33:32" (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 [2019-10-14 22:33:32,316 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-14 22:33:32,317 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-14 22:33:32,317 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~~TO~int [2019-10-14 22:33:32,317 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2019-10-14 22:33:32,317 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~~TO~VOID [2019-10-14 22:33:32,317 INFO L138 BoogieDeclarations]: Found implementation of procedure get_current [2019-10-14 22:33:32,318 INFO L138 BoogieDeclarations]: Found implementation of procedure bitmap_weight [2019-10-14 22:33:32,318 INFO L138 BoogieDeclarations]: Found implementation of procedure cpumask_weight [2019-10-14 22:33:32,318 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_read [2019-10-14 22:33:32,318 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_inc [2019-10-14 22:33:32,318 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_1 [2019-10-14 22:33:32,319 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_5 [2019-10-14 22:33:32,319 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irqrestore_8 [2019-10-14 22:33:32,319 INFO L138 BoogieDeclarations]: Found implementation of procedure __kmalloc [2019-10-14 22:33:32,319 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kmalloc_12 [2019-10-14 22:33:32,319 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2019-10-14 22:33:32,320 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2019-10-14 22:33:32,320 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2019-10-14 22:33:32,320 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_ptr [2019-10-14 22:33:32,320 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_ulong [2019-10-14 22:33:32,320 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2019-10-14 22:33:32,321 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2019-10-14 22:33:32,321 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2019-10-14 22:33:32,321 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_trap [2019-10-14 22:33:32,321 INFO L138 BoogieDeclarations]: Found implementation of procedure torture_lock_busted_write_lock [2019-10-14 22:33:32,321 INFO L138 BoogieDeclarations]: Found implementation of procedure torture_lock_busted_write_delay [2019-10-14 22:33:32,322 INFO L138 BoogieDeclarations]: Found implementation of procedure torture_lock_busted_write_unlock [2019-10-14 22:33:32,322 INFO L138 BoogieDeclarations]: Found implementation of procedure torture_spin_lock_write_lock [2019-10-14 22:33:32,322 INFO L138 BoogieDeclarations]: Found implementation of procedure torture_spin_lock_write_delay [2019-10-14 22:33:32,322 INFO L138 BoogieDeclarations]: Found implementation of procedure torture_spin_lock_write_unlock [2019-10-14 22:33:32,322 INFO L138 BoogieDeclarations]: Found implementation of procedure torture_spin_lock_write_lock_irq [2019-10-14 22:33:32,322 INFO L138 BoogieDeclarations]: Found implementation of procedure torture_lock_spin_write_unlock_irq [2019-10-14 22:33:32,322 INFO L138 BoogieDeclarations]: Found implementation of procedure lock_torture_writer [2019-10-14 22:33:32,323 INFO L138 BoogieDeclarations]: Found implementation of procedure lock_torture_printk [2019-10-14 22:33:32,323 INFO L138 BoogieDeclarations]: Found implementation of procedure lock_torture_stats_print [2019-10-14 22:33:32,323 INFO L138 BoogieDeclarations]: Found implementation of procedure lock_torture_stats [2019-10-14 22:33:32,323 INFO L138 BoogieDeclarations]: Found implementation of procedure lock_torture_print_module_parms [2019-10-14 22:33:32,323 INFO L138 BoogieDeclarations]: Found implementation of procedure lock_torture_cleanup [2019-10-14 22:33:32,323 INFO L138 BoogieDeclarations]: Found implementation of procedure lock_torture_init [2019-10-14 22:33:32,324 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-14 22:33:32,324 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2019-10-14 22:33:32,324 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2019-10-14 22:33:32,324 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2019-10-14 22:33:32,324 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2019-10-14 22:33:32,324 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kmem_cache_alloc_16 [2019-10-14 22:33:32,324 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2019-10-14 22:33:32,325 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags [2019-10-14 22:33:32,325 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags_and_return_some_page [2019-10-14 22:33:32,325 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_nonatomic [2019-10-14 22:33:32,325 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock [2019-10-14 22:33:32,325 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock [2019-10-14 22:33:32,325 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_trylock [2019-10-14 22:33:32,326 INFO L138 BoogieDeclarations]: Found implementation of procedure __bitmap_weight [2019-10-14 22:33:32,326 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2019-10-14 22:33:32,326 INFO L138 BoogieDeclarations]: Found implementation of procedure __udelay [2019-10-14 22:33:32,326 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock [2019-10-14 22:33:32,326 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_unlock [2019-10-14 22:33:32,326 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_unlock_irqrestore [2019-10-14 22:33:32,326 INFO L138 BoogieDeclarations]: Found implementation of procedure _torture_create_kthread [2019-10-14 22:33:32,327 INFO L138 BoogieDeclarations]: Found implementation of procedure _torture_stop_kthread [2019-10-14 22:33:32,327 INFO L138 BoogieDeclarations]: Found implementation of procedure kmem_cache_alloc [2019-10-14 22:33:32,327 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2019-10-14 22:33:32,327 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize [2019-10-14 22:33:32,327 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_probe_1 [2019-10-14 22:33:32,327 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_probe_2 [2019-10-14 22:33:32,328 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_probe_3 [2019-10-14 22:33:32,328 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_release_1 [2019-10-14 22:33:32,328 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_release_2 [2019-10-14 22:33:32,328 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_release_3 [2019-10-14 22:33:32,328 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_some_page [2019-10-14 22:33:32,328 INFO L138 BoogieDeclarations]: Found implementation of procedure printk [2019-10-14 22:33:32,328 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule_timeout_interruptible [2019-10-14 22:33:32,329 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule_timeout_uninterruptible [2019-10-14 22:33:32,329 INFO L138 BoogieDeclarations]: Found implementation of procedure set_user_nice [2019-10-14 22:33:32,329 INFO L138 BoogieDeclarations]: Found implementation of procedure stutter_wait [2019-10-14 22:33:32,329 INFO L138 BoogieDeclarations]: Found implementation of procedure torture_cleanup [2019-10-14 22:33:32,329 INFO L138 BoogieDeclarations]: Found implementation of procedure torture_init_begin [2019-10-14 22:33:32,329 INFO L138 BoogieDeclarations]: Found implementation of procedure torture_init_end [2019-10-14 22:33:32,330 INFO L138 BoogieDeclarations]: Found implementation of procedure torture_kthread_stopping [2019-10-14 22:33:32,330 INFO L138 BoogieDeclarations]: Found implementation of procedure torture_must_stop [2019-10-14 22:33:32,330 INFO L138 BoogieDeclarations]: Found implementation of procedure torture_onoff_failures [2019-10-14 22:33:32,330 INFO L138 BoogieDeclarations]: Found implementation of procedure torture_onoff_init [2019-10-14 22:33:32,330 INFO L138 BoogieDeclarations]: Found implementation of procedure torture_random [2019-10-14 22:33:32,330 INFO L138 BoogieDeclarations]: Found implementation of procedure torture_shuffle_init [2019-10-14 22:33:32,331 INFO L138 BoogieDeclarations]: Found implementation of procedure torture_shutdown_absorb [2019-10-14 22:33:32,331 INFO L138 BoogieDeclarations]: Found implementation of procedure torture_shutdown_init [2019-10-14 22:33:32,331 INFO L138 BoogieDeclarations]: Found implementation of procedure torture_stutter_init [2019-10-14 22:33:32,331 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2019-10-14 22:33:32,331 INFO L138 BoogieDeclarations]: Found implementation of procedure external_alloc [2019-10-14 22:33:32,331 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2019-10-14 22:33:32,332 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2019-10-14 22:33:32,332 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-14 22:33:32,332 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-14 22:33:32,332 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2019-10-14 22:33:32,332 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock [2019-10-14 22:33:32,333 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock [2019-10-14 22:33:32,333 INFO L130 BoogieDeclarations]: Found specification of procedure printk [2019-10-14 22:33:32,333 INFO L130 BoogieDeclarations]: Found specification of procedure sprintf [2019-10-14 22:33:32,333 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2019-10-14 22:33:32,333 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2019-10-14 22:33:32,333 INFO L130 BoogieDeclarations]: Found specification of procedure get_current [2019-10-14 22:33:32,334 INFO L130 BoogieDeclarations]: Found specification of procedure strcmp [2019-10-14 22:33:32,334 INFO L130 BoogieDeclarations]: Found specification of procedure __bitmap_weight [2019-10-14 22:33:32,334 INFO L130 BoogieDeclarations]: Found specification of procedure bitmap_weight [2019-10-14 22:33:32,334 INFO L130 BoogieDeclarations]: Found specification of procedure cpumask_weight [2019-10-14 22:33:32,334 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_read [2019-10-14 22:33:32,334 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-14 22:33:32,334 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_inc [2019-10-14 22:33:32,335 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock [2019-10-14 22:33:32,335 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_unlock [2019-10-14 22:33:32,335 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_unlock_irqrestore [2019-10-14 22:33:32,335 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_1 [2019-10-14 22:33:32,335 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2019-10-14 22:33:32,335 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_5 [2019-10-14 22:33:32,335 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2019-10-14 22:33:32,336 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irqrestore_8 [2019-10-14 22:33:32,336 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2019-10-14 22:33:32,336 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2019-10-14 22:33:32,336 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2019-10-14 22:33:32,336 INFO L130 BoogieDeclarations]: Found specification of procedure __kmalloc [2019-10-14 22:33:32,336 INFO L130 BoogieDeclarations]: Found specification of procedure kmem_cache_alloc [2019-10-14 22:33:32,336 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kmem_cache_alloc_16 [2019-10-14 22:33:32,337 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kmalloc_12 [2019-10-14 22:33:32,337 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2019-10-14 22:33:32,337 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2019-10-14 22:33:32,337 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags [2019-10-14 22:33:32,337 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-10-14 22:33:32,337 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2019-10-14 22:33:32,338 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-14 22:33:32,338 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_ulong [2019-10-14 22:33:32,338 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_pointer [2019-10-14 22:33:32,338 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assume [2019-10-14 22:33:32,338 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-14 22:33:32,338 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2019-10-14 22:33:32,338 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2019-10-14 22:33:32,339 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2019-10-14 22:33:32,339 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_ptr [2019-10-14 22:33:32,339 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_ulong [2019-10-14 22:33:32,339 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2019-10-14 22:33:32,339 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2019-10-14 22:33:32,339 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_trap [2019-10-14 22:33:32,340 INFO L130 BoogieDeclarations]: Found specification of procedure schedule_timeout_interruptible [2019-10-14 22:33:32,340 INFO L130 BoogieDeclarations]: Found specification of procedure schedule_timeout_uninterruptible [2019-10-14 22:33:32,340 INFO L130 BoogieDeclarations]: Found specification of procedure set_user_nice [2019-10-14 22:33:32,340 INFO L130 BoogieDeclarations]: Found specification of procedure __udelay [2019-10-14 22:33:32,340 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2019-10-14 22:33:32,340 INFO L130 BoogieDeclarations]: Found specification of procedure torture_onoff_init [2019-10-14 22:33:32,341 INFO L130 BoogieDeclarations]: Found specification of procedure torture_onoff_failures [2019-10-14 22:33:32,341 INFO L130 BoogieDeclarations]: Found specification of procedure torture_random [2019-10-14 22:33:32,341 INFO L130 BoogieDeclarations]: Found specification of procedure torture_shuffle_init [2019-10-14 22:33:32,341 INFO L130 BoogieDeclarations]: Found specification of procedure torture_shutdown_absorb [2019-10-14 22:33:32,341 INFO L130 BoogieDeclarations]: Found specification of procedure torture_shutdown_init [2019-10-14 22:33:32,341 INFO L130 BoogieDeclarations]: Found specification of procedure stutter_wait [2019-10-14 22:33:32,342 INFO L130 BoogieDeclarations]: Found specification of procedure torture_stutter_init [2019-10-14 22:33:32,342 INFO L130 BoogieDeclarations]: Found specification of procedure torture_init_begin [2019-10-14 22:33:32,342 INFO L130 BoogieDeclarations]: Found specification of procedure torture_init_end [2019-10-14 22:33:32,342 INFO L130 BoogieDeclarations]: Found specification of procedure torture_cleanup [2019-10-14 22:33:32,342 INFO L130 BoogieDeclarations]: Found specification of procedure torture_must_stop [2019-10-14 22:33:32,342 INFO L130 BoogieDeclarations]: Found specification of procedure torture_kthread_stopping [2019-10-14 22:33:32,342 INFO L130 BoogieDeclarations]: Found specification of procedure _torture_create_kthread [2019-10-14 22:33:32,343 INFO L130 BoogieDeclarations]: Found specification of procedure _torture_stop_kthread [2019-10-14 22:33:32,343 INFO L130 BoogieDeclarations]: Found specification of procedure lock_torture_cleanup [2019-10-14 22:33:32,343 INFO L130 BoogieDeclarations]: Found specification of procedure torture_lock_busted_write_lock [2019-10-14 22:33:32,343 INFO L130 BoogieDeclarations]: Found specification of procedure torture_lock_busted_write_delay [2019-10-14 22:33:32,343 INFO L130 BoogieDeclarations]: Found specification of procedure torture_lock_busted_write_unlock [2019-10-14 22:33:32,343 INFO L130 BoogieDeclarations]: Found specification of procedure torture_spin_lock_write_lock [2019-10-14 22:33:32,343 INFO L130 BoogieDeclarations]: Found specification of procedure torture_spin_lock_write_delay [2019-10-14 22:33:32,344 INFO L130 BoogieDeclarations]: Found specification of procedure torture_spin_lock_write_unlock [2019-10-14 22:33:32,344 INFO L130 BoogieDeclarations]: Found specification of procedure torture_spin_lock_write_lock_irq [2019-10-14 22:33:32,344 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-14 22:33:32,344 INFO L130 BoogieDeclarations]: Found specification of procedure torture_lock_spin_write_unlock_irq [2019-10-14 22:33:32,344 INFO L130 BoogieDeclarations]: Found specification of procedure lock_torture_writer [2019-10-14 22:33:32,344 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~~TO~int [2019-10-14 22:33:32,344 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2019-10-14 22:33:32,345 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~~TO~VOID [2019-10-14 22:33:32,345 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-14 22:33:32,345 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-14 22:33:32,345 INFO L130 BoogieDeclarations]: Found specification of procedure lock_torture_printk [2019-10-14 22:33:32,345 INFO L130 BoogieDeclarations]: Found specification of procedure lock_torture_stats_print [2019-10-14 22:33:32,345 INFO L130 BoogieDeclarations]: Found specification of procedure lock_torture_stats [2019-10-14 22:33:32,345 INFO L130 BoogieDeclarations]: Found specification of procedure lock_torture_print_module_parms [2019-10-14 22:33:32,346 INFO L130 BoogieDeclarations]: Found specification of procedure lock_torture_init [2019-10-14 22:33:32,346 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-14 22:33:32,346 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_probe_1 [2019-10-14 22:33:32,346 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize [2019-10-14 22:33:32,346 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_release_2 [2019-10-14 22:33:32,346 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2019-10-14 22:33:32,346 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_release_3 [2019-10-14 22:33:32,347 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_probe_3 [2019-10-14 22:33:32,347 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_probe_2 [2019-10-14 22:33:32,347 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_release_1 [2019-10-14 22:33:32,347 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-14 22:33:32,347 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_some_page [2019-10-14 22:33:32,347 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags_and_return_some_page [2019-10-14 22:33:32,347 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_nonatomic [2019-10-14 22:33:32,348 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_trylock [2019-10-14 22:33:32,348 INFO L130 BoogieDeclarations]: Found specification of procedure external_alloc [2019-10-14 22:33:32,348 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_long [2019-10-14 22:33:32,348 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_bool [2019-10-14 22:33:32,348 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-14 22:33:32,348 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-14 22:33:32,349 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-14 22:33:32,349 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2019-10-14 22:33:32,349 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-14 22:33:32,857 INFO L685 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2019-10-14 22:33:34,369 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-14 22:33:34,369 INFO L284 CfgBuilder]: Removed 0 assume(true) statements. [2019-10-14 22:33:34,371 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 10:33:34 BoogieIcfgContainer [2019-10-14 22:33:34,371 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-14 22:33:34,372 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-14 22:33:34,372 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-14 22:33:34,375 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-14 22:33:34,376 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.10 10:33:30" (1/3) ... [2019-10-14 22:33:34,377 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@757d8197 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 10:33:34, skipping insertion in model container [2019-10-14 22:33:34,377 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 10:33:32" (2/3) ... [2019-10-14 22:33:34,377 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@757d8197 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 10:33:34, skipping insertion in model container [2019-10-14 22:33:34,377 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 10:33:34" (3/3) ... [2019-10-14 22:33:34,379 INFO L109 eAbstractionObserver]: Analyzing ICFG 43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-kernel--locking--locktorture.ko-entry_point.cil.out.i [2019-10-14 22:33:34,390 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-14 22:33:34,405 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-14 22:33:34,417 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-14 22:33:34,460 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-14 22:33:34,461 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-14 22:33:34,461 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-14 22:33:34,461 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-14 22:33:34,461 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-14 22:33:34,461 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-14 22:33:34,461 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-14 22:33:34,462 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-14 22:33:34,501 INFO L276 IsEmpty]: Start isEmpty. Operand 580 states. [2019-10-14 22:33:34,528 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2019-10-14 22:33:34,529 INFO L372 BasicCegarLoop]: Found error trace [2019-10-14 22:33:34,530 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-14 22:33:34,533 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-14 22:33:34,539 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-14 22:33:34,539 INFO L82 PathProgramCache]: Analyzing trace with hash -210463986, now seen corresponding path program 1 times [2019-10-14 22:33:34,550 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-14 22:33:34,551 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1108911039] [2019-10-14 22:33:34,551 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 22:33:34,551 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 22:33:34,551 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-14 22:33:34,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 22:33:36,115 WARN L191 SmtUtils]: Spent 1.02 s on a formula simplification that was a NOOP. DAG size: 397 [2019-10-14 22:33:36,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 22:33:36,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 22:33:36,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 22:33:36,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 22:33:36,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 22:33:36,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 22:33:36,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 22:33:36,283 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2019-10-14 22:33:36,284 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1108911039] [2019-10-14 22:33:36,284 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-14 22:33:36,285 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-10-14 22:33:36,285 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1201406653] [2019-10-14 22:33:36,290 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-14 22:33:36,291 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-14 22:33:36,305 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-14 22:33:36,306 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-10-14 22:33:36,308 INFO L87 Difference]: Start difference. First operand 580 states. Second operand 5 states. [2019-10-14 22:33:37,208 WARN L191 SmtUtils]: Spent 861.00 ms on a formula simplification that was a NOOP. DAG size: 400 [2019-10-14 22:33:40,984 WARN L191 SmtUtils]: Spent 860.00 ms on a formula simplification that was a NOOP. DAG size: 402 [2019-10-14 22:33:49,063 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-14 22:33:49,063 INFO L93 Difference]: Finished difference Result 1407 states and 1886 transitions. [2019-10-14 22:33:49,067 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-10-14 22:33:49,070 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 56 [2019-10-14 22:33:49,070 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-14 22:33:49,096 INFO L225 Difference]: With dead ends: 1407 [2019-10-14 22:33:49,096 INFO L226 Difference]: Without dead ends: 843 [2019-10-14 22:33:49,106 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 2.8s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2019-10-14 22:33:49,125 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 843 states. [2019-10-14 22:33:49,333 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 843 to 693. [2019-10-14 22:33:49,334 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 693 states. [2019-10-14 22:33:49,339 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 693 states to 693 states and 883 transitions. [2019-10-14 22:33:49,342 INFO L78 Accepts]: Start accepts. Automaton has 693 states and 883 transitions. Word has length 56 [2019-10-14 22:33:49,342 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-14 22:33:49,342 INFO L462 AbstractCegarLoop]: Abstraction has 693 states and 883 transitions. [2019-10-14 22:33:49,342 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-14 22:33:49,343 INFO L276 IsEmpty]: Start isEmpty. Operand 693 states and 883 transitions. [2019-10-14 22:33:49,347 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2019-10-14 22:33:49,347 INFO L372 BasicCegarLoop]: Found error trace [2019-10-14 22:33:49,348 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-14 22:33:49,348 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-14 22:33:49,348 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-14 22:33:49,348 INFO L82 PathProgramCache]: Analyzing trace with hash 1257260473, now seen corresponding path program 1 times [2019-10-14 22:33:49,349 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-14 22:33:49,349 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [410407566] [2019-10-14 22:33:49,349 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 22:33:49,349 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 22:33:49,349 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-14 22:33:49,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 22:33:50,387 WARN L191 SmtUtils]: Spent 810.00 ms on a formula simplification that was a NOOP. DAG size: 397 [2019-10-14 22:33:50,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 22:33:50,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 22:33:50,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 22:33:50,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 22:33:50,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 22:33:50,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 22:33:50,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 22:33:50,538 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2019-10-14 22:33:50,539 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [410407566] [2019-10-14 22:33:50,539 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-14 22:33:50,539 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-10-14 22:33:50,539 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [761891030] [2019-10-14 22:33:50,550 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-14 22:33:50,552 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-14 22:33:50,552 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-14 22:33:50,552 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-10-14 22:33:50,552 INFO L87 Difference]: Start difference. First operand 693 states and 883 transitions. Second operand 5 states. [2019-10-14 22:33:51,410 WARN L191 SmtUtils]: Spent 842.00 ms on a formula simplification that was a NOOP. DAG size: 400 [2019-10-14 22:33:53,709 WARN L191 SmtUtils]: Spent 815.00 ms on a formula simplification that was a NOOP. DAG size: 404 [2019-10-14 22:33:54,608 WARN L191 SmtUtils]: Spent 826.00 ms on a formula simplification that was a NOOP. DAG size: 401 [2019-10-14 22:33:59,854 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-14 22:33:59,854 INFO L93 Difference]: Finished difference Result 1508 states and 1977 transitions. [2019-10-14 22:33:59,854 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-10-14 22:33:59,854 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 60 [2019-10-14 22:33:59,855 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-14 22:33:59,866 INFO L225 Difference]: With dead ends: 1508 [2019-10-14 22:33:59,866 INFO L226 Difference]: Without dead ends: 840 [2019-10-14 22:33:59,869 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 3.4s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2019-10-14 22:33:59,871 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 840 states. [2019-10-14 22:34:00,061 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 840 to 693. [2019-10-14 22:34:00,061 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 693 states. [2019-10-14 22:34:00,066 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 693 states to 693 states and 882 transitions. [2019-10-14 22:34:00,069 INFO L78 Accepts]: Start accepts. Automaton has 693 states and 882 transitions. Word has length 60 [2019-10-14 22:34:00,069 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-14 22:34:00,070 INFO L462 AbstractCegarLoop]: Abstraction has 693 states and 882 transitions. [2019-10-14 22:34:00,070 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-14 22:34:00,070 INFO L276 IsEmpty]: Start isEmpty. Operand 693 states and 882 transitions. [2019-10-14 22:34:00,075 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2019-10-14 22:34:00,075 INFO L372 BasicCegarLoop]: Found error trace [2019-10-14 22:34:00,075 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-14 22:34:00,076 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-14 22:34:00,076 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-14 22:34:00,076 INFO L82 PathProgramCache]: Analyzing trace with hash 461837689, now seen corresponding path program 1 times [2019-10-14 22:34:00,076 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-14 22:34:00,077 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1601061747] [2019-10-14 22:34:00,077 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 22:34:00,077 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 22:34:00,077 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-14 22:34:00,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 22:34:01,176 WARN L191 SmtUtils]: Spent 937.00 ms on a formula simplification that was a NOOP. DAG size: 397 [2019-10-14 22:34:01,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 22:34:01,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 22:34:01,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 22:34:01,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 22:34:01,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 22:34:01,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 22:34:01,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 22:34:01,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 22:34:01,313 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2019-10-14 22:34:01,314 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1601061747] [2019-10-14 22:34:01,314 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-14 22:34:01,314 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-10-14 22:34:01,314 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1541031973] [2019-10-14 22:34:01,315 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-14 22:34:01,315 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-14 22:34:01,315 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-14 22:34:01,316 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-10-14 22:34:01,316 INFO L87 Difference]: Start difference. First operand 693 states and 882 transitions. Second operand 5 states. [2019-10-14 22:34:02,139 WARN L191 SmtUtils]: Spent 810.00 ms on a formula simplification that was a NOOP. DAG size: 400 [2019-10-14 22:34:05,232 WARN L191 SmtUtils]: Spent 801.00 ms on a formula simplification that was a NOOP. DAG size: 402 [2019-10-14 22:34:06,117 WARN L191 SmtUtils]: Spent 800.00 ms on a formula simplification that was a NOOP. DAG size: 399