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-f4eb214f-m [2019-10-13 18:34:28,617 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-13 18:34:28,619 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-13 18:34:28,639 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-13 18:34:28,640 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-13 18:34:28,642 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-13 18:34:28,644 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-13 18:34:28,652 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-13 18:34:28,654 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-13 18:34:28,656 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-13 18:34:28,657 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-13 18:34:28,659 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-13 18:34:28,659 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-13 18:34:28,660 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-13 18:34:28,661 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-13 18:34:28,662 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-13 18:34:28,663 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-13 18:34:28,664 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-13 18:34:28,665 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-13 18:34:28,667 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-13 18:34:28,669 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-13 18:34:28,670 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-13 18:34:28,671 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-13 18:34:28,672 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-13 18:34:28,674 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-13 18:34:28,674 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-13 18:34:28,674 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-13 18:34:28,675 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-13 18:34:28,676 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-13 18:34:28,677 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-13 18:34:28,677 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-13 18:34:28,678 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-13 18:34:28,679 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-13 18:34:28,680 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-13 18:34:28,681 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-13 18:34:28,681 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-13 18:34:28,682 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-13 18:34:28,682 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-13 18:34:28,682 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-13 18:34:28,683 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-13 18:34:28,684 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-13 18:34:28,685 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 [2019-10-13 18:34:28,699 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-13 18:34:28,699 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-13 18:34:28,701 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-13 18:34:28,701 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-13 18:34:28,701 INFO L138 SettingsManager]: * Use SBE=true [2019-10-13 18:34:28,702 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-13 18:34:28,702 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-13 18:34:28,702 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-13 18:34:28,702 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-13 18:34:28,702 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-13 18:34:28,703 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-13 18:34:28,703 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-13 18:34:28,703 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-13 18:34:28,703 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-13 18:34:28,703 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-13 18:34:28,704 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-13 18:34:28,704 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-13 18:34:28,704 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-13 18:34:28,704 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-13 18:34:28,704 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-13 18:34:28,705 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-13 18:34:28,705 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-13 18:34:28,705 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-13 18:34:28,705 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-13 18:34:28,705 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-13 18:34:28,706 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-13 18:34:28,706 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-13 18:34:28,706 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-13 18:34:28,706 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-10-13 18:34:29,024 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-13 18:34:29,047 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-13 18:34:29,050 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-13 18:34:29,052 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-13 18:34:29,052 INFO L275 PluginConnector]: CDTParser initialized [2019-10-13 18:34:29,053 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-linux-3.16-rc1/43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-kernel--locking--locktorture.ko-entry_point.cil.out.i [2019-10-13 18:34:29,137 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e997dc833/78172b7a9bf14be08ccda7371d18c452/FLAG8bd7e33d2 [2019-10-13 18:34:29,767 INFO L306 CDTParser]: Found 1 translation units. [2019-10-13 18:34:29,767 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ldv-linux-3.16-rc1/43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-kernel--locking--locktorture.ko-entry_point.cil.out.i [2019-10-13 18:34:29,799 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e997dc833/78172b7a9bf14be08ccda7371d18c452/FLAG8bd7e33d2 [2019-10-13 18:34:29,917 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e997dc833/78172b7a9bf14be08ccda7371d18c452 [2019-10-13 18:34:29,932 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-13 18:34:29,934 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-13 18:34:29,935 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-13 18:34:29,935 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-13 18:34:29,939 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-13 18:34:29,940 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 06:34:29" (1/1) ... [2019-10-13 18:34:29,943 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2b268c8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:34:29, skipping insertion in model container [2019-10-13 18:34:29,944 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 06:34:29" (1/1) ... [2019-10-13 18:34:29,952 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-13 18:34:30,065 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-13 18:34:30,690 WARN L1068 CHandler]: Detected problem Invalid redeclaration of the name show at C: (*show)(struct kobject___0 * , struct attribute___0 * , char * ) [1753] [2019-10-13 18:34:30,691 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] [2019-10-13 18:34:31,101 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-13 18:34:31,125 INFO L188 MainTranslator]: Completed pre-run [2019-10-13 18:34:31,187 WARN L1068 CHandler]: Detected problem Invalid redeclaration of the name show at C: (*show)(struct kobject___0 * , struct attribute___0 * , char * ) [1753] [2019-10-13 18:34:31,187 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] [2019-10-13 18:34:31,261 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-13 18:34:31,357 INFO L192 MainTranslator]: Completed translation [2019-10-13 18:34:31,357 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:34:31 WrapperNode [2019-10-13 18:34:31,358 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-13 18:34:31,358 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-13 18:34:31,359 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-13 18:34:31,359 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-13 18:34:31,376 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:34:31" (1/1) ... [2019-10-13 18:34:31,377 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:34:31" (1/1) ... [2019-10-13 18:34:31,448 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:34:31" (1/1) ... [2019-10-13 18:34:31,450 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:34:31" (1/1) ... [2019-10-13 18:34:31,511 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:34:31" (1/1) ... [2019-10-13 18:34:31,523 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:34:31" (1/1) ... [2019-10-13 18:34:31,533 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:34:31" (1/1) ... [2019-10-13 18:34:31,553 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-13 18:34:31,553 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-13 18:34:31,557 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-13 18:34:31,557 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-13 18:34:31,558 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:34:31" (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 [2019-10-13 18:34:31,628 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-13 18:34:31,629 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-13 18:34:31,629 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~~TO~int [2019-10-13 18:34:31,630 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2019-10-13 18:34:31,630 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~~TO~VOID [2019-10-13 18:34:31,630 INFO L138 BoogieDeclarations]: Found implementation of procedure get_current [2019-10-13 18:34:31,631 INFO L138 BoogieDeclarations]: Found implementation of procedure bitmap_weight [2019-10-13 18:34:31,632 INFO L138 BoogieDeclarations]: Found implementation of procedure cpumask_weight [2019-10-13 18:34:31,633 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_read [2019-10-13 18:34:31,633 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_inc [2019-10-13 18:34:31,634 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_1 [2019-10-13 18:34:31,635 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_5 [2019-10-13 18:34:31,638 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irqrestore_8 [2019-10-13 18:34:31,639 INFO L138 BoogieDeclarations]: Found implementation of procedure __kmalloc [2019-10-13 18:34:31,639 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kmalloc_12 [2019-10-13 18:34:31,639 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2019-10-13 18:34:31,640 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2019-10-13 18:34:31,640 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2019-10-13 18:34:31,640 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_ptr [2019-10-13 18:34:31,640 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_ulong [2019-10-13 18:34:31,641 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2019-10-13 18:34:31,641 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2019-10-13 18:34:31,641 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2019-10-13 18:34:31,641 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_trap [2019-10-13 18:34:31,641 INFO L138 BoogieDeclarations]: Found implementation of procedure torture_lock_busted_write_lock [2019-10-13 18:34:31,642 INFO L138 BoogieDeclarations]: Found implementation of procedure torture_lock_busted_write_delay [2019-10-13 18:34:31,642 INFO L138 BoogieDeclarations]: Found implementation of procedure torture_lock_busted_write_unlock [2019-10-13 18:34:31,642 INFO L138 BoogieDeclarations]: Found implementation of procedure torture_spin_lock_write_lock [2019-10-13 18:34:31,642 INFO L138 BoogieDeclarations]: Found implementation of procedure torture_spin_lock_write_delay [2019-10-13 18:34:31,643 INFO L138 BoogieDeclarations]: Found implementation of procedure torture_spin_lock_write_unlock [2019-10-13 18:34:31,643 INFO L138 BoogieDeclarations]: Found implementation of procedure torture_spin_lock_write_lock_irq [2019-10-13 18:34:31,643 INFO L138 BoogieDeclarations]: Found implementation of procedure torture_lock_spin_write_unlock_irq [2019-10-13 18:34:31,644 INFO L138 BoogieDeclarations]: Found implementation of procedure lock_torture_writer [2019-10-13 18:34:31,644 INFO L138 BoogieDeclarations]: Found implementation of procedure lock_torture_printk [2019-10-13 18:34:31,644 INFO L138 BoogieDeclarations]: Found implementation of procedure lock_torture_stats_print [2019-10-13 18:34:31,644 INFO L138 BoogieDeclarations]: Found implementation of procedure lock_torture_stats [2019-10-13 18:34:31,644 INFO L138 BoogieDeclarations]: Found implementation of procedure lock_torture_print_module_parms [2019-10-13 18:34:31,645 INFO L138 BoogieDeclarations]: Found implementation of procedure lock_torture_cleanup [2019-10-13 18:34:31,645 INFO L138 BoogieDeclarations]: Found implementation of procedure lock_torture_init [2019-10-13 18:34:31,646 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-13 18:34:31,646 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2019-10-13 18:34:31,646 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2019-10-13 18:34:31,646 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2019-10-13 18:34:31,646 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2019-10-13 18:34:31,647 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kmem_cache_alloc_16 [2019-10-13 18:34:31,647 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2019-10-13 18:34:31,647 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags [2019-10-13 18:34:31,647 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags_and_return_some_page [2019-10-13 18:34:31,648 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_nonatomic [2019-10-13 18:34:31,648 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock [2019-10-13 18:34:31,648 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock [2019-10-13 18:34:31,648 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_trylock [2019-10-13 18:34:31,648 INFO L138 BoogieDeclarations]: Found implementation of procedure __bitmap_weight [2019-10-13 18:34:31,648 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2019-10-13 18:34:31,648 INFO L138 BoogieDeclarations]: Found implementation of procedure __udelay [2019-10-13 18:34:31,649 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock [2019-10-13 18:34:31,649 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_unlock [2019-10-13 18:34:31,649 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_unlock_irqrestore [2019-10-13 18:34:31,649 INFO L138 BoogieDeclarations]: Found implementation of procedure _torture_create_kthread [2019-10-13 18:34:31,649 INFO L138 BoogieDeclarations]: Found implementation of procedure _torture_stop_kthread [2019-10-13 18:34:31,649 INFO L138 BoogieDeclarations]: Found implementation of procedure kmem_cache_alloc [2019-10-13 18:34:31,650 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2019-10-13 18:34:31,650 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize [2019-10-13 18:34:31,650 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_probe_1 [2019-10-13 18:34:31,650 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_probe_2 [2019-10-13 18:34:31,650 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_probe_3 [2019-10-13 18:34:31,651 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_release_1 [2019-10-13 18:34:31,651 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_release_2 [2019-10-13 18:34:31,651 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_release_3 [2019-10-13 18:34:31,651 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_some_page [2019-10-13 18:34:31,652 INFO L138 BoogieDeclarations]: Found implementation of procedure printk [2019-10-13 18:34:31,652 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule_timeout_interruptible [2019-10-13 18:34:31,652 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule_timeout_uninterruptible [2019-10-13 18:34:31,652 INFO L138 BoogieDeclarations]: Found implementation of procedure set_user_nice [2019-10-13 18:34:31,653 INFO L138 BoogieDeclarations]: Found implementation of procedure stutter_wait [2019-10-13 18:34:31,653 INFO L138 BoogieDeclarations]: Found implementation of procedure torture_cleanup [2019-10-13 18:34:31,653 INFO L138 BoogieDeclarations]: Found implementation of procedure torture_init_begin [2019-10-13 18:34:31,653 INFO L138 BoogieDeclarations]: Found implementation of procedure torture_init_end [2019-10-13 18:34:31,654 INFO L138 BoogieDeclarations]: Found implementation of procedure torture_kthread_stopping [2019-10-13 18:34:31,654 INFO L138 BoogieDeclarations]: Found implementation of procedure torture_must_stop [2019-10-13 18:34:31,654 INFO L138 BoogieDeclarations]: Found implementation of procedure torture_onoff_failures [2019-10-13 18:34:31,654 INFO L138 BoogieDeclarations]: Found implementation of procedure torture_onoff_init [2019-10-13 18:34:31,655 INFO L138 BoogieDeclarations]: Found implementation of procedure torture_random [2019-10-13 18:34:31,656 INFO L138 BoogieDeclarations]: Found implementation of procedure torture_shuffle_init [2019-10-13 18:34:31,656 INFO L138 BoogieDeclarations]: Found implementation of procedure torture_shutdown_absorb [2019-10-13 18:34:31,656 INFO L138 BoogieDeclarations]: Found implementation of procedure torture_shutdown_init [2019-10-13 18:34:31,656 INFO L138 BoogieDeclarations]: Found implementation of procedure torture_stutter_init [2019-10-13 18:34:31,657 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2019-10-13 18:34:31,657 INFO L138 BoogieDeclarations]: Found implementation of procedure external_alloc [2019-10-13 18:34:31,657 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2019-10-13 18:34:31,658 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2019-10-13 18:34:31,658 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-13 18:34:31,658 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-13 18:34:31,658 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2019-10-13 18:34:31,659 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock [2019-10-13 18:34:31,659 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock [2019-10-13 18:34:31,659 INFO L130 BoogieDeclarations]: Found specification of procedure printk [2019-10-13 18:34:31,659 INFO L130 BoogieDeclarations]: Found specification of procedure sprintf [2019-10-13 18:34:31,659 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2019-10-13 18:34:31,660 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2019-10-13 18:34:31,660 INFO L130 BoogieDeclarations]: Found specification of procedure get_current [2019-10-13 18:34:31,660 INFO L130 BoogieDeclarations]: Found specification of procedure strcmp [2019-10-13 18:34:31,660 INFO L130 BoogieDeclarations]: Found specification of procedure __bitmap_weight [2019-10-13 18:34:31,661 INFO L130 BoogieDeclarations]: Found specification of procedure bitmap_weight [2019-10-13 18:34:31,661 INFO L130 BoogieDeclarations]: Found specification of procedure cpumask_weight [2019-10-13 18:34:31,661 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_read [2019-10-13 18:34:31,661 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-13 18:34:31,661 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_inc [2019-10-13 18:34:31,662 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock [2019-10-13 18:34:31,662 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_unlock [2019-10-13 18:34:31,662 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_unlock_irqrestore [2019-10-13 18:34:31,662 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_1 [2019-10-13 18:34:31,662 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2019-10-13 18:34:31,663 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_5 [2019-10-13 18:34:31,663 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2019-10-13 18:34:31,664 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irqrestore_8 [2019-10-13 18:34:31,664 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2019-10-13 18:34:31,664 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2019-10-13 18:34:31,665 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2019-10-13 18:34:31,665 INFO L130 BoogieDeclarations]: Found specification of procedure __kmalloc [2019-10-13 18:34:31,666 INFO L130 BoogieDeclarations]: Found specification of procedure kmem_cache_alloc [2019-10-13 18:34:31,666 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kmem_cache_alloc_16 [2019-10-13 18:34:31,666 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kmalloc_12 [2019-10-13 18:34:31,667 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2019-10-13 18:34:31,667 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2019-10-13 18:34:31,667 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags [2019-10-13 18:34:31,667 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-10-13 18:34:31,668 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2019-10-13 18:34:31,668 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-13 18:34:31,668 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_ulong [2019-10-13 18:34:31,669 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_pointer [2019-10-13 18:34:31,669 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assume [2019-10-13 18:34:31,669 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-13 18:34:31,669 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2019-10-13 18:34:31,669 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2019-10-13 18:34:31,670 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2019-10-13 18:34:31,674 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_ptr [2019-10-13 18:34:31,675 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_ulong [2019-10-13 18:34:31,675 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2019-10-13 18:34:31,676 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2019-10-13 18:34:31,683 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_trap [2019-10-13 18:34:31,683 INFO L130 BoogieDeclarations]: Found specification of procedure schedule_timeout_interruptible [2019-10-13 18:34:31,683 INFO L130 BoogieDeclarations]: Found specification of procedure schedule_timeout_uninterruptible [2019-10-13 18:34:31,684 INFO L130 BoogieDeclarations]: Found specification of procedure set_user_nice [2019-10-13 18:34:31,684 INFO L130 BoogieDeclarations]: Found specification of procedure __udelay [2019-10-13 18:34:31,685 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2019-10-13 18:34:31,685 INFO L130 BoogieDeclarations]: Found specification of procedure torture_onoff_init [2019-10-13 18:34:31,685 INFO L130 BoogieDeclarations]: Found specification of procedure torture_onoff_failures [2019-10-13 18:34:31,686 INFO L130 BoogieDeclarations]: Found specification of procedure torture_random [2019-10-13 18:34:31,686 INFO L130 BoogieDeclarations]: Found specification of procedure torture_shuffle_init [2019-10-13 18:34:31,686 INFO L130 BoogieDeclarations]: Found specification of procedure torture_shutdown_absorb [2019-10-13 18:34:31,686 INFO L130 BoogieDeclarations]: Found specification of procedure torture_shutdown_init [2019-10-13 18:34:31,686 INFO L130 BoogieDeclarations]: Found specification of procedure stutter_wait [2019-10-13 18:34:31,687 INFO L130 BoogieDeclarations]: Found specification of procedure torture_stutter_init [2019-10-13 18:34:31,687 INFO L130 BoogieDeclarations]: Found specification of procedure torture_init_begin [2019-10-13 18:34:31,687 INFO L130 BoogieDeclarations]: Found specification of procedure torture_init_end [2019-10-13 18:34:31,687 INFO L130 BoogieDeclarations]: Found specification of procedure torture_cleanup [2019-10-13 18:34:31,687 INFO L130 BoogieDeclarations]: Found specification of procedure torture_must_stop [2019-10-13 18:34:31,688 INFO L130 BoogieDeclarations]: Found specification of procedure torture_kthread_stopping [2019-10-13 18:34:31,688 INFO L130 BoogieDeclarations]: Found specification of procedure _torture_create_kthread [2019-10-13 18:34:31,688 INFO L130 BoogieDeclarations]: Found specification of procedure _torture_stop_kthread [2019-10-13 18:34:31,688 INFO L130 BoogieDeclarations]: Found specification of procedure lock_torture_cleanup [2019-10-13 18:34:31,688 INFO L130 BoogieDeclarations]: Found specification of procedure torture_lock_busted_write_lock [2019-10-13 18:34:31,689 INFO L130 BoogieDeclarations]: Found specification of procedure torture_lock_busted_write_delay [2019-10-13 18:34:31,689 INFO L130 BoogieDeclarations]: Found specification of procedure torture_lock_busted_write_unlock [2019-10-13 18:34:31,689 INFO L130 BoogieDeclarations]: Found specification of procedure torture_spin_lock_write_lock [2019-10-13 18:34:31,689 INFO L130 BoogieDeclarations]: Found specification of procedure torture_spin_lock_write_delay [2019-10-13 18:34:31,689 INFO L130 BoogieDeclarations]: Found specification of procedure torture_spin_lock_write_unlock [2019-10-13 18:34:31,689 INFO L130 BoogieDeclarations]: Found specification of procedure torture_spin_lock_write_lock_irq [2019-10-13 18:34:31,690 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-13 18:34:31,690 INFO L130 BoogieDeclarations]: Found specification of procedure torture_lock_spin_write_unlock_irq [2019-10-13 18:34:31,690 INFO L130 BoogieDeclarations]: Found specification of procedure lock_torture_writer [2019-10-13 18:34:31,690 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~~TO~int [2019-10-13 18:34:31,690 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2019-10-13 18:34:31,691 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~~TO~VOID [2019-10-13 18:34:31,691 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-13 18:34:31,691 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-13 18:34:31,691 INFO L130 BoogieDeclarations]: Found specification of procedure lock_torture_printk [2019-10-13 18:34:31,691 INFO L130 BoogieDeclarations]: Found specification of procedure lock_torture_stats_print [2019-10-13 18:34:31,692 INFO L130 BoogieDeclarations]: Found specification of procedure lock_torture_stats [2019-10-13 18:34:31,692 INFO L130 BoogieDeclarations]: Found specification of procedure lock_torture_print_module_parms [2019-10-13 18:34:31,692 INFO L130 BoogieDeclarations]: Found specification of procedure lock_torture_init [2019-10-13 18:34:31,692 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-13 18:34:31,692 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_probe_1 [2019-10-13 18:34:31,693 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize [2019-10-13 18:34:31,693 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_release_2 [2019-10-13 18:34:31,693 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2019-10-13 18:34:31,693 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_release_3 [2019-10-13 18:34:31,693 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_probe_3 [2019-10-13 18:34:31,693 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_probe_2 [2019-10-13 18:34:31,694 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_release_1 [2019-10-13 18:34:31,694 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-13 18:34:31,694 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_some_page [2019-10-13 18:34:31,694 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags_and_return_some_page [2019-10-13 18:34:31,694 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_nonatomic [2019-10-13 18:34:31,695 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_trylock [2019-10-13 18:34:31,695 INFO L130 BoogieDeclarations]: Found specification of procedure external_alloc [2019-10-13 18:34:31,695 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_long [2019-10-13 18:34:31,695 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_bool [2019-10-13 18:34:31,695 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-13 18:34:31,696 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-13 18:34:31,696 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-13 18:34:31,696 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2019-10-13 18:34:31,696 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-13 18:34:32,397 INFO L685 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2019-10-13 18:34:34,244 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-13 18:34:34,244 INFO L284 CfgBuilder]: Removed 0 assume(true) statements. [2019-10-13 18:34:34,246 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 06:34:34 BoogieIcfgContainer [2019-10-13 18:34:34,246 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-13 18:34:34,248 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-13 18:34:34,248 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-13 18:34:34,251 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-13 18:34:34,251 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 06:34:29" (1/3) ... [2019-10-13 18:34:34,252 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@76600c89 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 06:34:34, skipping insertion in model container [2019-10-13 18:34:34,252 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:34:31" (2/3) ... [2019-10-13 18:34:34,253 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@76600c89 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 06:34:34, skipping insertion in model container [2019-10-13 18:34:34,253 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 06:34:34" (3/3) ... [2019-10-13 18:34:34,255 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 [2019-10-13 18:34:34,265 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-13 18:34:34,275 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-13 18:34:34,287 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-13 18:34:34,318 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-13 18:34:34,318 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-13 18:34:34,318 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-13 18:34:34,318 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-13 18:34:34,319 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-13 18:34:34,319 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-13 18:34:34,319 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-13 18:34:34,319 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-13 18:34:34,351 INFO L276 IsEmpty]: Start isEmpty. Operand 580 states. [2019-10-13 18:34:34,366 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2019-10-13 18:34:34,367 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 18:34:34,368 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] [2019-10-13 18:34:34,370 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 18:34:34,375 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 18:34:34,376 INFO L82 PathProgramCache]: Analyzing trace with hash -210463986, now seen corresponding path program 1 times [2019-10-13 18:34:34,385 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-13 18:34:34,385 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1309881247] [2019-10-13 18:34:34,386 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 18:34:34,386 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 18:34:34,386 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 18:34:34,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 18:34:36,175 WARN L191 SmtUtils]: Spent 1.22 s on a formula simplification that was a NOOP. DAG size: 397 [2019-10-13 18:34:36,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 18:34:36,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 18:34:36,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 18:34:36,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 18:34:36,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 18:34:36,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 18:34:36,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 18:34:36,301 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2019-10-13 18:34:36,302 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1309881247] [2019-10-13 18:34:36,303 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 18:34:36,303 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-10-13 18:34:36,304 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [234069742] [2019-10-13 18:34:36,309 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-13 18:34:36,310 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-13 18:34:36,326 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-13 18:34:36,327 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-10-13 18:34:36,329 INFO L87 Difference]: Start difference. First operand 580 states. Second operand 5 states. [2019-10-13 18:34:37,410 WARN L191 SmtUtils]: Spent 1.04 s on a formula simplification that was a NOOP. DAG size: 400 [2019-10-13 18:34:41,889 WARN L191 SmtUtils]: Spent 972.00 ms on a formula simplification that was a NOOP. DAG size: 402 [2019-10-13 18:34:50,420 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 18:34:50,420 INFO L93 Difference]: Finished difference Result 1407 states and 1886 transitions. [2019-10-13 18:34:50,424 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-10-13 18:34:50,426 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 56 [2019-10-13 18:34:50,426 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 18:34:50,465 INFO L225 Difference]: With dead ends: 1407 [2019-10-13 18:34:50,468 INFO L226 Difference]: Without dead ends: 843 [2019-10-13 18:34:50,484 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 3.3s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2019-10-13 18:34:50,504 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 843 states. [2019-10-13 18:34:50,733 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 843 to 693. [2019-10-13 18:34:50,734 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 693 states. [2019-10-13 18:34:50,739 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 693 states to 693 states and 883 transitions. [2019-10-13 18:34:50,741 INFO L78 Accepts]: Start accepts. Automaton has 693 states and 883 transitions. Word has length 56 [2019-10-13 18:34:50,742 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 18:34:50,742 INFO L462 AbstractCegarLoop]: Abstraction has 693 states and 883 transitions. [2019-10-13 18:34:50,742 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-13 18:34:50,742 INFO L276 IsEmpty]: Start isEmpty. Operand 693 states and 883 transitions. [2019-10-13 18:34:50,748 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2019-10-13 18:34:50,748 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 18:34:50,748 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] [2019-10-13 18:34:50,749 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 18:34:50,749 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 18:34:50,749 INFO L82 PathProgramCache]: Analyzing trace with hash 1257260473, now seen corresponding path program 1 times [2019-10-13 18:34:50,749 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-13 18:34:50,750 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1207381974] [2019-10-13 18:34:50,750 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 18:34:50,750 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 18:34:50,750 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 18:34:50,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 18:34:51,753 WARN L191 SmtUtils]: Spent 835.00 ms on a formula simplification that was a NOOP. DAG size: 397 [2019-10-13 18:34:51,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 18:34:51,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 18:34:51,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 18:34:51,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 18:34:51,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 18:34:51,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 18:34:51,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 18:34:51,936 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2019-10-13 18:34:51,936 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1207381974] [2019-10-13 18:34:51,936 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 18:34:51,936 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-10-13 18:34:51,937 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1288297020] [2019-10-13 18:34:51,948 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-13 18:34:51,949 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-13 18:34:51,950 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-13 18:34:51,950 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-10-13 18:34:51,950 INFO L87 Difference]: Start difference. First operand 693 states and 883 transitions. Second operand 5 states. [2019-10-13 18:34:52,824 WARN L191 SmtUtils]: Spent 860.00 ms on a formula simplification that was a NOOP. DAG size: 400 [2019-10-13 18:34:55,716 WARN L191 SmtUtils]: Spent 925.00 ms on a formula simplification that was a NOOP. DAG size: 404 [2019-10-13 18:34:56,700 WARN L191 SmtUtils]: Spent 903.00 ms on a formula simplification that was a NOOP. DAG size: 401 [2019-10-13 18:35:02,248 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 18:35:02,248 INFO L93 Difference]: Finished difference Result 1508 states and 1977 transitions. [2019-10-13 18:35:02,249 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-10-13 18:35:02,249 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 60 [2019-10-13 18:35:02,250 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 18:35:02,257 INFO L225 Difference]: With dead ends: 1508 [2019-10-13 18:35:02,257 INFO L226 Difference]: Without dead ends: 840 [2019-10-13 18:35:02,260 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 3.6s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2019-10-13 18:35:02,262 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 840 states. [2019-10-13 18:35:02,409 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 840 to 693. [2019-10-13 18:35:02,409 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 693 states. [2019-10-13 18:35:02,413 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 693 states to 693 states and 882 transitions. [2019-10-13 18:35:02,414 INFO L78 Accepts]: Start accepts. Automaton has 693 states and 882 transitions. Word has length 60 [2019-10-13 18:35:02,414 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 18:35:02,414 INFO L462 AbstractCegarLoop]: Abstraction has 693 states and 882 transitions. [2019-10-13 18:35:02,414 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-13 18:35:02,415 INFO L276 IsEmpty]: Start isEmpty. Operand 693 states and 882 transitions. [2019-10-13 18:35:02,419 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2019-10-13 18:35:02,419 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 18:35:02,419 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] [2019-10-13 18:35:02,419 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 18:35:02,420 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 18:35:02,420 INFO L82 PathProgramCache]: Analyzing trace with hash 461837689, now seen corresponding path program 1 times [2019-10-13 18:35:02,420 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-13 18:35:02,420 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1245209107] [2019-10-13 18:35:02,420 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 18:35:02,421 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 18:35:02,421 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 18:35:02,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 18:35:03,538 WARN L191 SmtUtils]: Spent 835.00 ms on a formula simplification that was a NOOP. DAG size: 397 [2019-10-13 18:35:03,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 18:35:03,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 18:35:03,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 18:35:03,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 18:35:03,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 18:35:03,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 18:35:03,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 18:35:03,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 18:35:03,651 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2019-10-13 18:35:03,652 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1245209107] [2019-10-13 18:35:03,652 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 18:35:03,652 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-10-13 18:35:03,653 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1038206010] [2019-10-13 18:35:03,653 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-13 18:35:03,653 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-13 18:35:03,653 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-13 18:35:03,654 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-10-13 18:35:03,654 INFO L87 Difference]: Start difference. First operand 693 states and 882 transitions. Second operand 5 states. [2019-10-13 18:35:04,507 WARN L191 SmtUtils]: Spent 837.00 ms on a formula simplification that was a NOOP. DAG size: 400 [2019-10-13 18:35:06,485 WARN L191 SmtUtils]: Spent 942.00 ms on a formula simplification that was a NOOP. DAG size: 402 [2019-10-13 18:35:07,480 WARN L191 SmtUtils]: Spent 901.00 ms on a formula simplification that was a NOOP. DAG size: 399