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 --abstractinterpretationv2.abstract.domain IntervalDomain --traceabstraction.trace.refinement.strategy TAIPAN --traceabstraction.abstract.interpretation.mode USE_PREDICATES -i ../../../trunk/examples/svcomp/ldv-linux-3.16-rc1/43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-drivers--nfc--st21nfca--st21nfca_i2c.ko-entry_point.cil.out.i -------------------------------------------------------------------------------- This is Ultimate 0.1.24-f4eb214f-m [2019-10-13 20:34:49,254 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-13 20:34:49,258 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-13 20:34:49,272 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-13 20:34:49,272 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-13 20:34:49,274 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-13 20:34:49,275 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-13 20:34:49,277 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-13 20:34:49,278 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-13 20:34:49,279 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-13 20:34:49,280 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-13 20:34:49,281 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-13 20:34:49,282 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-13 20:34:49,283 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-13 20:34:49,284 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-13 20:34:49,285 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-13 20:34:49,285 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-13 20:34:49,286 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-13 20:34:49,288 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-13 20:34:49,290 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-13 20:34:49,292 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-13 20:34:49,293 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-13 20:34:49,294 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-13 20:34:49,295 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-13 20:34:49,298 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-13 20:34:49,298 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-13 20:34:49,298 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-13 20:34:49,299 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-13 20:34:49,300 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-13 20:34:49,301 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-13 20:34:49,301 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-13 20:34:49,302 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-13 20:34:49,303 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-13 20:34:49,303 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-13 20:34:49,304 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-13 20:34:49,305 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-13 20:34:49,305 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-13 20:34:49,306 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-13 20:34:49,306 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-13 20:34:49,307 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-13 20:34:49,307 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-13 20:34:49,309 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 20:34:49,331 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-13 20:34:49,331 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-13 20:34:49,332 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-13 20:34:49,333 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-13 20:34:49,333 INFO L138 SettingsManager]: * Use SBE=true [2019-10-13 20:34:49,333 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-13 20:34:49,333 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-13 20:34:49,334 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-13 20:34:49,334 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-13 20:34:49,334 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-13 20:34:49,334 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-13 20:34:49,334 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-13 20:34:49,335 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-13 20:34:49,335 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-13 20:34:49,335 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-13 20:34:49,335 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-13 20:34:49,335 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-13 20:34:49,336 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-13 20:34:49,336 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-13 20:34:49,336 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-13 20:34:49,336 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-13 20:34:49,336 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-13 20:34:49,337 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-13 20:34:49,337 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-13 20:34:49,337 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-13 20:34:49,337 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-13 20:34:49,337 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-13 20:34:49,338 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-13 20:34:49,338 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2: Abstract domain -> IntervalDomain Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> TAIPAN Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Abstract interpretation Mode -> USE_PREDICATES [2019-10-13 20:34:49,625 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-13 20:34:49,641 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-13 20:34:49,645 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-13 20:34:49,646 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-13 20:34:49,646 INFO L275 PluginConnector]: CDTParser initialized [2019-10-13 20:34:49,647 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-linux-3.16-rc1/43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-drivers--nfc--st21nfca--st21nfca_i2c.ko-entry_point.cil.out.i [2019-10-13 20:34:49,709 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/27cd10852/bcfb1a0216cb490f9a3904ec6b70fccb/FLAG9e1a0bdd1 [2019-10-13 20:34:50,465 INFO L306 CDTParser]: Found 1 translation units. [2019-10-13 20:34:50,467 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ldv-linux-3.16-rc1/43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-drivers--nfc--st21nfca--st21nfca_i2c.ko-entry_point.cil.out.i [2019-10-13 20:34:50,505 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/27cd10852/bcfb1a0216cb490f9a3904ec6b70fccb/FLAG9e1a0bdd1 [2019-10-13 20:34:50,564 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/27cd10852/bcfb1a0216cb490f9a3904ec6b70fccb [2019-10-13 20:34:50,574 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-13 20:34:50,576 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-13 20:34:50,577 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-13 20:34:50,577 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-13 20:34:50,581 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-13 20:34:50,582 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 08:34:50" (1/1) ... [2019-10-13 20:34:50,585 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@69ad50f3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 08:34:50, skipping insertion in model container [2019-10-13 20:34:50,585 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 08:34:50" (1/1) ... [2019-10-13 20:34:50,592 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-13 20:34:50,705 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-13 20:34:51,291 WARN L1068 CHandler]: Detected problem Invalid redeclaration of the name show at C: (*show)(struct kobject___0 * , struct attribute___0 * , char * ) [2704] [2019-10-13 20:34:51,292 WARN L1068 CHandler]: Detected problem Invalid redeclaration of the name store at C: (*store)(struct kobject___0 * , struct attribute___0 * , char const * , size_t ) [2705-2706] [2019-10-13 20:34:52,116 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-13 20:34:52,171 INFO L188 MainTranslator]: Completed pre-run [2019-10-13 20:34:52,269 WARN L1068 CHandler]: Detected problem Invalid redeclaration of the name show at C: (*show)(struct kobject___0 * , struct attribute___0 * , char * ) [2704] [2019-10-13 20:34:52,269 WARN L1068 CHandler]: Detected problem Invalid redeclaration of the name store at C: (*store)(struct kobject___0 * , struct attribute___0 * , char const * , size_t ) [2705-2706] [2019-10-13 20:34:52,420 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-13 20:34:52,553 INFO L192 MainTranslator]: Completed translation [2019-10-13 20:34:52,554 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 08:34:52 WrapperNode [2019-10-13 20:34:52,554 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-13 20:34:52,555 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-13 20:34:52,555 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-13 20:34:52,555 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-13 20:34:52,569 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 08:34:52" (1/1) ... [2019-10-13 20:34:52,570 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 08:34:52" (1/1) ... [2019-10-13 20:34:52,658 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 08:34:52" (1/1) ... [2019-10-13 20:34:52,659 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 08:34:52" (1/1) ... [2019-10-13 20:34:52,766 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 08:34:52" (1/1) ... [2019-10-13 20:34:52,818 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 08:34:52" (1/1) ... [2019-10-13 20:34:52,832 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 08:34:52" (1/1) ... [2019-10-13 20:34:52,852 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-13 20:34:52,853 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-13 20:34:52,854 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-13 20:34:52,854 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-13 20:34:52,855 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 08:34:52" (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 20:34:52,916 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-13 20:34:52,916 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-13 20:34:52,917 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~~u32~0 [2019-10-13 20:34:52,917 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2019-10-13 20:34:52,917 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2019-10-13 20:34:52,917 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2019-10-13 20:34:52,917 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_ptr [2019-10-13 20:34:52,918 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_ulong [2019-10-13 20:34:52,918 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2019-10-13 20:34:52,918 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2019-10-13 20:34:52,918 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2019-10-13 20:34:52,918 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_trap [2019-10-13 20:34:52,919 INFO L138 BoogieDeclarations]: Found implementation of procedure devm_kzalloc [2019-10-13 20:34:52,919 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_get_drvdata [2019-10-13 20:34:52,919 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_set_drvdata [2019-10-13 20:34:52,919 INFO L138 BoogieDeclarations]: Found implementation of procedure i2c_get_clientdata [2019-10-13 20:34:52,919 INFO L138 BoogieDeclarations]: Found implementation of procedure i2c_set_clientdata [2019-10-13 20:34:52,920 INFO L138 BoogieDeclarations]: Found implementation of procedure i2c_get_functionality [2019-10-13 20:34:52,920 INFO L138 BoogieDeclarations]: Found implementation of procedure i2c_check_functionality [2019-10-13 20:34:52,920 INFO L138 BoogieDeclarations]: Found implementation of procedure gpio_direction_input [2019-10-13 20:34:52,920 INFO L138 BoogieDeclarations]: Found implementation of procedure gpio_direction_output [2019-10-13 20:34:52,921 INFO L138 BoogieDeclarations]: Found implementation of procedure __gpio_set_value [2019-10-13 20:34:52,921 INFO L138 BoogieDeclarations]: Found implementation of procedure __gpio_to_irq [2019-10-13 20:34:52,921 INFO L138 BoogieDeclarations]: Found implementation of procedure gpio_set_value [2019-10-13 20:34:52,921 INFO L138 BoogieDeclarations]: Found implementation of procedure gpio_to_irq [2019-10-13 20:34:52,921 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_alloc_skb_21 [2019-10-13 20:34:52,921 INFO L138 BoogieDeclarations]: Found implementation of procedure st21nfca_hci_platform_init [2019-10-13 20:34:52,922 INFO L138 BoogieDeclarations]: Found implementation of procedure st21nfca_hci_i2c_enable [2019-10-13 20:34:52,922 INFO L138 BoogieDeclarations]: Found implementation of procedure st21nfca_hci_i2c_disable [2019-10-13 20:34:52,922 INFO L138 BoogieDeclarations]: Found implementation of procedure st21nfca_hci_add_len_crc [2019-10-13 20:34:52,922 INFO L138 BoogieDeclarations]: Found implementation of procedure st21nfca_hci_remove_len_crc [2019-10-13 20:34:52,922 INFO L138 BoogieDeclarations]: Found implementation of procedure st21nfca_hci_i2c_write [2019-10-13 20:34:52,922 INFO L138 BoogieDeclarations]: Found implementation of procedure get_frame_size [2019-10-13 20:34:52,923 INFO L138 BoogieDeclarations]: Found implementation of procedure check_crc [2019-10-13 20:34:52,923 INFO L138 BoogieDeclarations]: Found implementation of procedure st21nfca_hci_i2c_repack [2019-10-13 20:34:52,923 INFO L138 BoogieDeclarations]: Found implementation of procedure st21nfca_hci_i2c_read [2019-10-13 20:34:52,923 INFO L138 BoogieDeclarations]: Found implementation of procedure st21nfca_hci_irq_thread_fn [2019-10-13 20:34:52,923 INFO L138 BoogieDeclarations]: Found implementation of procedure st21nfca_hci_i2c_of_request_resources [2019-10-13 20:34:52,923 INFO L138 BoogieDeclarations]: Found implementation of procedure st21nfca_hci_i2c_request_resources [2019-10-13 20:34:52,923 INFO L138 BoogieDeclarations]: Found implementation of procedure st21nfca_hci_i2c_probe [2019-10-13 20:34:52,924 INFO L138 BoogieDeclarations]: Found implementation of procedure st21nfca_hci_i2c_remove [2019-10-13 20:34:52,924 INFO L138 BoogieDeclarations]: Found implementation of procedure st21nfca_hci_i2c_driver_init [2019-10-13 20:34:52,924 INFO L138 BoogieDeclarations]: Found implementation of procedure st21nfca_hci_i2c_driver_exit [2019-10-13 20:34:52,924 INFO L138 BoogieDeclarations]: Found implementation of procedure choose_interrupt_2 [2019-10-13 20:34:52,924 INFO L138 BoogieDeclarations]: Found implementation of procedure disable_suitable_irq_2 [2019-10-13 20:34:52,924 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_suitable_irq_2 [2019-10-13 20:34:52,924 INFO L138 BoogieDeclarations]: Found implementation of procedure disable_suitable_irq_1 [2019-10-13 20:34:52,925 INFO L138 BoogieDeclarations]: Found implementation of procedure reg_check_1 [2019-10-13 20:34:52,925 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_suitable_irq_1 [2019-10-13 20:34:52,925 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_irq_1 [2019-10-13 20:34:52,925 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_irq_2 [2019-10-13 20:34:52,925 INFO L138 BoogieDeclarations]: Found implementation of procedure choose_interrupt_1 [2019-10-13 20:34:52,925 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize_i2c_driver_3 [2019-10-13 20:34:52,925 INFO L138 BoogieDeclarations]: Found implementation of procedure reg_check_2 [2019-10-13 20:34:52,926 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-13 20:34:52,926 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kmem_cache_alloc_16 [2019-10-13 20:34:52,926 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_devm_request_threaded_irq_19 [2019-10-13 20:34:52,926 INFO L138 BoogieDeclarations]: Found implementation of procedure alloc_skb [2019-10-13 20:34:52,926 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_pskb_expand_head_23 [2019-10-13 20:34:52,926 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_skb_clone_25 [2019-10-13 20:34:52,927 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_skb_copy_27 [2019-10-13 20:34:52,927 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv___netdev_alloc_skb_28 [2019-10-13 20:34:52,927 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv___netdev_alloc_skb_29 [2019-10-13 20:34:52,927 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv___netdev_alloc_skb_30 [2019-10-13 20:34:52,927 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_pskb_expand_head_31 [2019-10-13 20:34:52,927 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_pskb_expand_head_32 [2019-10-13 20:34:52,928 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_devm_request_threaded_irq_33 [2019-10-13 20:34:52,928 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags [2019-10-13 20:34:52,928 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags_and_return_some_page [2019-10-13 20:34:52,928 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_nonatomic [2019-10-13 20:34:52,928 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock [2019-10-13 20:34:52,928 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock [2019-10-13 20:34:52,928 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_trylock [2019-10-13 20:34:52,929 INFO L138 BoogieDeclarations]: Found implementation of procedure __alloc_skb [2019-10-13 20:34:52,929 INFO L138 BoogieDeclarations]: Found implementation of procedure __dynamic_dev_dbg [2019-10-13 20:34:52,929 INFO L138 BoogieDeclarations]: Found implementation of procedure __dynamic_pr_debug [2019-10-13 20:34:52,929 INFO L138 BoogieDeclarations]: Found implementation of procedure __mutex_init [2019-10-13 20:34:52,929 INFO L138 BoogieDeclarations]: Found implementation of procedure __netdev_alloc_skb [2019-10-13 20:34:52,929 INFO L138 BoogieDeclarations]: Found implementation of procedure crc_ccitt [2019-10-13 20:34:52,930 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_err [2019-10-13 20:34:52,930 INFO L138 BoogieDeclarations]: Found implementation of procedure devm_gpio_request [2019-10-13 20:34:52,930 INFO L138 BoogieDeclarations]: Found implementation of procedure devm_kmalloc [2019-10-13 20:34:52,930 INFO L138 BoogieDeclarations]: Found implementation of procedure devm_request_threaded_irq [2019-10-13 20:34:52,930 INFO L138 BoogieDeclarations]: Found implementation of procedure gpio_to_desc [2019-10-13 20:34:52,930 INFO L138 BoogieDeclarations]: Found implementation of procedure gpiod_direction_input [2019-10-13 20:34:52,931 INFO L138 BoogieDeclarations]: Found implementation of procedure gpiod_direction_output_raw [2019-10-13 20:34:52,931 INFO L138 BoogieDeclarations]: Found implementation of procedure gpiod_to_irq [2019-10-13 20:34:52,931 INFO L138 BoogieDeclarations]: Found implementation of procedure i2c_del_driver [2019-10-13 20:34:52,931 INFO L138 BoogieDeclarations]: Found implementation of procedure i2c_master_recv [2019-10-13 20:34:52,931 INFO L138 BoogieDeclarations]: Found implementation of procedure i2c_master_send [2019-10-13 20:34:52,931 INFO L138 BoogieDeclarations]: Found implementation of procedure i2c_register_driver [2019-10-13 20:34:52,931 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree_skb [2019-10-13 20:34:52,932 INFO L138 BoogieDeclarations]: Found implementation of procedure kmem_cache_alloc [2019-10-13 20:34:52,932 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2019-10-13 20:34:52,932 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_handler1_1 [2019-10-13 20:34:52,932 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_handler1_2 [2019-10-13 20:34:52,932 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize [2019-10-13 20:34:52,932 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_some_page [2019-10-13 20:34:52,932 INFO L138 BoogieDeclarations]: Found implementation of procedure msleep [2019-10-13 20:34:52,933 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_nested [2019-10-13 20:34:52,933 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2019-10-13 20:34:52,933 INFO L138 BoogieDeclarations]: Found implementation of procedure nfc_hci_recv_frame [2019-10-13 20:34:52,933 INFO L138 BoogieDeclarations]: Found implementation of procedure print_hex_dump [2019-10-13 20:34:52,933 INFO L138 BoogieDeclarations]: Found implementation of procedure printk [2019-10-13 20:34:52,933 INFO L138 BoogieDeclarations]: Found implementation of procedure pskb_expand_head [2019-10-13 20:34:52,934 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_clone [2019-10-13 20:34:52,934 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_copy [2019-10-13 20:34:52,934 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_pull [2019-10-13 20:34:52,934 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_push [2019-10-13 20:34:52,934 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_put [2019-10-13 20:34:52,934 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_trim [2019-10-13 20:34:52,934 INFO L138 BoogieDeclarations]: Found implementation of procedure st21nfca_hci_probe [2019-10-13 20:34:52,935 INFO L138 BoogieDeclarations]: Found implementation of procedure st21nfca_hci_remove [2019-10-13 20:34:52,935 INFO L138 BoogieDeclarations]: Found implementation of procedure usleep_range [2019-10-13 20:34:52,935 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2019-10-13 20:34:52,935 INFO L138 BoogieDeclarations]: Found implementation of procedure external_alloc [2019-10-13 20:34:52,935 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2019-10-13 20:34:52,935 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2019-10-13 20:34:52,936 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2019-10-13 20:34:52,936 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-13 20:34:52,936 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2019-10-13 20:34:52,936 INFO L130 BoogieDeclarations]: Found specification of procedure printk [2019-10-13 20:34:52,936 INFO L130 BoogieDeclarations]: Found specification of procedure __dynamic_pr_debug [2019-10-13 20:34:52,936 INFO L130 BoogieDeclarations]: Found specification of procedure __dynamic_dev_dbg [2019-10-13 20:34:52,937 INFO L130 BoogieDeclarations]: Found specification of procedure print_hex_dump [2019-10-13 20:34:52,937 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2019-10-13 20:34:52,937 INFO L130 BoogieDeclarations]: Found specification of procedure __mutex_init [2019-10-13 20:34:52,937 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_nested [2019-10-13 20:34:52,937 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2019-10-13 20:34:52,937 INFO L130 BoogieDeclarations]: Found specification of procedure kmem_cache_alloc [2019-10-13 20:34:52,937 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kmem_cache_alloc_16 [2019-10-13 20:34:52,938 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags [2019-10-13 20:34:52,938 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-10-13 20:34:52,938 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2019-10-13 20:34:52,938 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-13 20:34:52,938 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_ulong [2019-10-13 20:34:52,938 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_pointer [2019-10-13 20:34:52,939 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assume [2019-10-13 20:34:52,939 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2019-10-13 20:34:52,939 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-13 20:34:52,939 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2019-10-13 20:34:52,939 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2019-10-13 20:34:52,939 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2019-10-13 20:34:52,940 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_ptr [2019-10-13 20:34:52,940 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_ulong [2019-10-13 20:34:52,940 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2019-10-13 20:34:52,940 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2019-10-13 20:34:52,940 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_trap [2019-10-13 20:34:52,940 INFO L130 BoogieDeclarations]: Found specification of procedure choose_interrupt_2 [2019-10-13 20:34:52,940 INFO L130 BoogieDeclarations]: Found specification of procedure disable_suitable_irq_2 [2019-10-13 20:34:52,941 INFO L130 BoogieDeclarations]: Found specification of procedure activate_suitable_irq_2 [2019-10-13 20:34:52,941 INFO L130 BoogieDeclarations]: Found specification of procedure disable_suitable_irq_1 [2019-10-13 20:34:52,941 INFO L130 BoogieDeclarations]: Found specification of procedure reg_check_1 [2019-10-13 20:34:52,941 INFO L130 BoogieDeclarations]: Found specification of procedure activate_suitable_irq_1 [2019-10-13 20:34:52,941 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_irq_1 [2019-10-13 20:34:52,941 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_irq_2 [2019-10-13 20:34:52,941 INFO L130 BoogieDeclarations]: Found specification of procedure choose_interrupt_1 [2019-10-13 20:34:52,942 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize_i2c_driver_3 [2019-10-13 20:34:52,942 INFO L130 BoogieDeclarations]: Found specification of procedure reg_check_2 [2019-10-13 20:34:52,942 INFO L130 BoogieDeclarations]: Found specification of procedure crc_ccitt [2019-10-13 20:34:52,942 INFO L130 BoogieDeclarations]: Found specification of procedure devm_kmalloc [2019-10-13 20:34:52,942 INFO L130 BoogieDeclarations]: Found specification of procedure devm_kzalloc [2019-10-13 20:34:52,942 INFO L130 BoogieDeclarations]: Found specification of procedure dev_get_drvdata [2019-10-13 20:34:52,942 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-13 20:34:52,942 INFO L130 BoogieDeclarations]: Found specification of procedure dev_set_drvdata [2019-10-13 20:34:52,943 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-13 20:34:52,943 INFO L130 BoogieDeclarations]: Found specification of procedure dev_err [2019-10-13 20:34:52,943 INFO L130 BoogieDeclarations]: Found specification of procedure i2c_master_send [2019-10-13 20:34:52,943 INFO L130 BoogieDeclarations]: Found specification of procedure i2c_master_recv [2019-10-13 20:34:52,943 INFO L130 BoogieDeclarations]: Found specification of procedure i2c_get_clientdata [2019-10-13 20:34:52,943 INFO L130 BoogieDeclarations]: Found specification of procedure i2c_set_clientdata [2019-10-13 20:34:52,943 INFO L130 BoogieDeclarations]: Found specification of procedure i2c_register_driver [2019-10-13 20:34:52,944 INFO L130 BoogieDeclarations]: Found specification of procedure i2c_del_driver [2019-10-13 20:34:52,944 INFO L130 BoogieDeclarations]: Found specification of procedure i2c_get_functionality [2019-10-13 20:34:52,944 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~~u32~0 [2019-10-13 20:34:52,944 INFO L130 BoogieDeclarations]: Found specification of procedure i2c_check_functionality [2019-10-13 20:34:52,944 INFO L130 BoogieDeclarations]: Found specification of procedure gpiod_direction_input [2019-10-13 20:34:52,944 INFO L130 BoogieDeclarations]: Found specification of procedure gpiod_direction_output_raw [2019-10-13 20:34:52,944 INFO L130 BoogieDeclarations]: Found specification of procedure gpiod_to_irq [2019-10-13 20:34:52,945 INFO L130 BoogieDeclarations]: Found specification of procedure gpio_to_desc [2019-10-13 20:34:52,945 INFO L130 BoogieDeclarations]: Found specification of procedure gpio_direction_input [2019-10-13 20:34:52,945 INFO L130 BoogieDeclarations]: Found specification of procedure gpio_direction_output [2019-10-13 20:34:52,945 INFO L130 BoogieDeclarations]: Found specification of procedure __gpio_set_value [2019-10-13 20:34:52,945 INFO L130 BoogieDeclarations]: Found specification of procedure __gpio_to_irq [2019-10-13 20:34:52,945 INFO L130 BoogieDeclarations]: Found specification of procedure gpio_set_value [2019-10-13 20:34:52,945 INFO L130 BoogieDeclarations]: Found specification of procedure gpio_to_irq [2019-10-13 20:34:52,945 INFO L130 BoogieDeclarations]: Found specification of procedure devm_gpio_request [2019-10-13 20:34:52,946 INFO L130 BoogieDeclarations]: Found specification of procedure devm_request_threaded_irq [2019-10-13 20:34:52,946 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_devm_request_threaded_irq_19 [2019-10-13 20:34:52,946 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_devm_request_threaded_irq_33 [2019-10-13 20:34:52,946 INFO L130 BoogieDeclarations]: Found specification of procedure msleep [2019-10-13 20:34:52,946 INFO L130 BoogieDeclarations]: Found specification of procedure usleep_range [2019-10-13 20:34:52,946 INFO L130 BoogieDeclarations]: Found specification of procedure kfree_skb [2019-10-13 20:34:52,946 INFO L130 BoogieDeclarations]: Found specification of procedure __alloc_skb [2019-10-13 20:34:52,947 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_alloc_skb_21 [2019-10-13 20:34:52,947 INFO L130 BoogieDeclarations]: Found specification of procedure alloc_skb [2019-10-13 20:34:52,947 INFO L130 BoogieDeclarations]: Found specification of procedure skb_clone [2019-10-13 20:34:52,947 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_skb_clone_25 [2019-10-13 20:34:52,947 INFO L130 BoogieDeclarations]: Found specification of procedure skb_copy [2019-10-13 20:34:52,947 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_skb_copy_27 [2019-10-13 20:34:52,947 INFO L130 BoogieDeclarations]: Found specification of procedure pskb_expand_head [2019-10-13 20:34:52,947 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_pskb_expand_head_23 [2019-10-13 20:34:52,948 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_pskb_expand_head_31 [2019-10-13 20:34:52,948 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_pskb_expand_head_32 [2019-10-13 20:34:52,948 INFO L130 BoogieDeclarations]: Found specification of procedure skb_put [2019-10-13 20:34:52,948 INFO L130 BoogieDeclarations]: Found specification of procedure skb_push [2019-10-13 20:34:52,948 INFO L130 BoogieDeclarations]: Found specification of procedure skb_pull [2019-10-13 20:34:52,948 INFO L130 BoogieDeclarations]: Found specification of procedure skb_trim [2019-10-13 20:34:52,949 INFO L130 BoogieDeclarations]: Found specification of procedure __netdev_alloc_skb [2019-10-13 20:34:52,949 INFO L130 BoogieDeclarations]: Found specification of procedure ldv___netdev_alloc_skb_28 [2019-10-13 20:34:52,949 INFO L130 BoogieDeclarations]: Found specification of procedure ldv___netdev_alloc_skb_29 [2019-10-13 20:34:52,949 INFO L130 BoogieDeclarations]: Found specification of procedure ldv___netdev_alloc_skb_30 [2019-10-13 20:34:52,949 INFO L130 BoogieDeclarations]: Found specification of procedure nfc_hci_recv_frame [2019-10-13 20:34:52,949 INFO L130 BoogieDeclarations]: Found specification of procedure st21nfca_hci_probe [2019-10-13 20:34:52,949 INFO L130 BoogieDeclarations]: Found specification of procedure st21nfca_hci_remove [2019-10-13 20:34:52,950 INFO L130 BoogieDeclarations]: Found specification of procedure st21nfca_hci_platform_init [2019-10-13 20:34:52,950 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-13 20:34:52,950 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-13 20:34:52,950 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-13 20:34:52,950 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-13 20:34:52,950 INFO L130 BoogieDeclarations]: Found specification of procedure st21nfca_hci_i2c_enable [2019-10-13 20:34:52,950 INFO L130 BoogieDeclarations]: Found specification of procedure st21nfca_hci_i2c_disable [2019-10-13 20:34:52,951 INFO L130 BoogieDeclarations]: Found specification of procedure st21nfca_hci_add_len_crc [2019-10-13 20:34:52,951 INFO L130 BoogieDeclarations]: Found specification of procedure st21nfca_hci_remove_len_crc [2019-10-13 20:34:52,951 INFO L130 BoogieDeclarations]: Found specification of procedure st21nfca_hci_i2c_write [2019-10-13 20:34:52,951 INFO L130 BoogieDeclarations]: Found specification of procedure get_frame_size [2019-10-13 20:34:52,951 INFO L130 BoogieDeclarations]: Found specification of procedure check_crc [2019-10-13 20:34:52,951 INFO L130 BoogieDeclarations]: Found specification of procedure st21nfca_hci_i2c_repack [2019-10-13 20:34:52,951 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy [2019-10-13 20:34:52,952 INFO L130 BoogieDeclarations]: Found specification of procedure st21nfca_hci_i2c_read [2019-10-13 20:34:52,952 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2019-10-13 20:34:52,952 INFO L130 BoogieDeclarations]: Found specification of procedure st21nfca_hci_irq_thread_fn [2019-10-13 20:34:52,952 INFO L130 BoogieDeclarations]: Found specification of procedure st21nfca_hci_i2c_of_request_resources [2019-10-13 20:34:52,952 INFO L130 BoogieDeclarations]: Found specification of procedure st21nfca_hci_i2c_request_resources [2019-10-13 20:34:52,952 INFO L130 BoogieDeclarations]: Found specification of procedure st21nfca_hci_i2c_probe [2019-10-13 20:34:52,952 INFO L130 BoogieDeclarations]: Found specification of procedure st21nfca_hci_i2c_remove [2019-10-13 20:34:52,952 INFO L130 BoogieDeclarations]: Found specification of procedure st21nfca_hci_i2c_driver_init [2019-10-13 20:34:52,953 INFO L130 BoogieDeclarations]: Found specification of procedure st21nfca_hci_i2c_driver_exit [2019-10-13 20:34:52,953 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_handler1_1 [2019-10-13 20:34:52,953 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize [2019-10-13 20:34:52,953 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2019-10-13 20:34:52,953 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_handler1_2 [2019-10-13 20:34:52,953 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-13 20:34:52,953 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_some_page [2019-10-13 20:34:52,954 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags_and_return_some_page [2019-10-13 20:34:52,954 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_nonatomic [2019-10-13 20:34:52,954 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock [2019-10-13 20:34:52,954 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock [2019-10-13 20:34:52,954 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_trylock [2019-10-13 20:34:52,954 INFO L130 BoogieDeclarations]: Found specification of procedure external_alloc [2019-10-13 20:34:52,954 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_ushort [2019-10-13 20:34:52,955 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-13 20:34:52,955 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2019-10-13 20:34:52,955 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-13 20:34:52,955 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2019-10-13 20:34:52,955 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-13 20:34:52,955 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2019-10-13 20:34:52,955 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-13 20:34:52,955 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2019-10-13 20:34:52,956 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2019-10-13 20:34:52,956 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2019-10-13 20:34:53,910 INFO L685 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2019-10-13 20:34:59,022 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-13 20:34:59,022 INFO L284 CfgBuilder]: Removed 0 assume(true) statements. [2019-10-13 20:34:59,024 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 08:34:59 BoogieIcfgContainer [2019-10-13 20:34:59,025 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-13 20:34:59,026 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-13 20:34:59,026 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-13 20:34:59,029 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-13 20:34:59,030 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 08:34:50" (1/3) ... [2019-10-13 20:34:59,030 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@cc2a6d8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 08:34:59, skipping insertion in model container [2019-10-13 20:34:59,031 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 08:34:52" (2/3) ... [2019-10-13 20:34:59,031 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@cc2a6d8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 08:34:59, skipping insertion in model container [2019-10-13 20:34:59,031 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 08:34:59" (3/3) ... [2019-10-13 20:34:59,033 INFO L109 eAbstractionObserver]: Analyzing ICFG 43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-drivers--nfc--st21nfca--st21nfca_i2c.ko-entry_point.cil.out.i [2019-10-13 20:34:59,045 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-13 20:34:59,055 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-13 20:34:59,069 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-13 20:34:59,100 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-13 20:34:59,100 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-13 20:34:59,101 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-13 20:34:59,101 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-13 20:34:59,101 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-13 20:34:59,101 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-13 20:34:59,101 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-13 20:34:59,101 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-13 20:34:59,135 INFO L276 IsEmpty]: Start isEmpty. Operand 777 states. [2019-10-13 20:34:59,153 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2019-10-13 20:34:59,153 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 20:34:59,154 INFO L380 BasicCegarLoop]: trace histogram [5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 20:34:59,156 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 20:34:59,163 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 20:34:59,163 INFO L82 PathProgramCache]: Analyzing trace with hash -707493983, now seen corresponding path program 1 times [2019-10-13 20:34:59,174 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 20:34:59,174 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1701722680] [2019-10-13 20:34:59,175 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 20:34:59,175 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 20:34:59,175 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 20:34:59,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 20:35:00,027 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2019-10-13 20:35:00,028 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1701722680] [2019-10-13 20:35:00,029 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 20:35:00,030 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-10-13 20:35:00,030 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [676958049] [2019-10-13 20:35:00,037 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-13 20:35:00,040 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 20:35:00,057 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-13 20:35:00,058 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-10-13 20:35:00,061 INFO L87 Difference]: Start difference. First operand 777 states. Second operand 5 states. [2019-10-13 20:35:00,361 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 20:35:00,361 INFO L93 Difference]: Finished difference Result 2056 states and 2679 transitions. [2019-10-13 20:35:00,362 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-10-13 20:35:00,363 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 83 [2019-10-13 20:35:00,364 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 20:35:00,401 INFO L225 Difference]: With dead ends: 2056 [2019-10-13 20:35:00,401 INFO L226 Difference]: Without dead ends: 1328 [2019-10-13 20:35:00,415 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2019-10-13 20:35:00,436 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1328 states. [2019-10-13 20:35:00,597 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1328 to 1315. [2019-10-13 20:35:00,598 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1315 states. [2019-10-13 20:35:00,608 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1315 states to 1315 states and 1684 transitions. [2019-10-13 20:35:00,611 INFO L78 Accepts]: Start accepts. Automaton has 1315 states and 1684 transitions. Word has length 83 [2019-10-13 20:35:00,612 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 20:35:00,612 INFO L462 AbstractCegarLoop]: Abstraction has 1315 states and 1684 transitions. [2019-10-13 20:35:00,612 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-13 20:35:00,612 INFO L276 IsEmpty]: Start isEmpty. Operand 1315 states and 1684 transitions. [2019-10-13 20:35:00,625 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2019-10-13 20:35:00,626 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 20:35:00,626 INFO L380 BasicCegarLoop]: trace histogram [5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 20:35:00,626 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 20:35:00,627 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 20:35:00,627 INFO L82 PathProgramCache]: Analyzing trace with hash 340543681, now seen corresponding path program 1 times [2019-10-13 20:35:00,627 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 20:35:00,627 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [583238771] [2019-10-13 20:35:00,627 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 20:35:00,628 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 20:35:00,628 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 20:35:00,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 20:35:00,915 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2019-10-13 20:35:00,916 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [583238771] [2019-10-13 20:35:00,916 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 20:35:00,916 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-10-13 20:35:00,916 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [939432172] [2019-10-13 20:35:00,919 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-13 20:35:00,919 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 20:35:00,920 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-13 20:35:00,920 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-10-13 20:35:00,920 INFO L87 Difference]: Start difference. First operand 1315 states and 1684 transitions. Second operand 5 states. [2019-10-13 20:35:01,087 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 20:35:01,087 INFO L93 Difference]: Finished difference Result 3927 states and 5040 transitions. [2019-10-13 20:35:01,088 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-10-13 20:35:01,088 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 86 [2019-10-13 20:35:01,088 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 20:35:01,104 INFO L225 Difference]: With dead ends: 3927 [2019-10-13 20:35:01,105 INFO L226 Difference]: Without dead ends: 2632 [2019-10-13 20:35:01,111 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2019-10-13 20:35:01,115 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2632 states. [2019-10-13 20:35:01,246 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2632 to 2609. [2019-10-13 20:35:01,247 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2609 states. [2019-10-13 20:35:01,274 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2609 states to 2609 states and 3343 transitions. [2019-10-13 20:35:01,276 INFO L78 Accepts]: Start accepts. Automaton has 2609 states and 3343 transitions. Word has length 86 [2019-10-13 20:35:01,278 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 20:35:01,278 INFO L462 AbstractCegarLoop]: Abstraction has 2609 states and 3343 transitions. [2019-10-13 20:35:01,278 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-13 20:35:01,278 INFO L276 IsEmpty]: Start isEmpty. Operand 2609 states and 3343 transitions. [2019-10-13 20:35:01,283 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2019-10-13 20:35:01,284 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 20:35:01,284 INFO L380 BasicCegarLoop]: trace histogram [5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 20:35:01,284 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 20:35:01,285 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 20:35:01,285 INFO L82 PathProgramCache]: Analyzing trace with hash -1008133295, now seen corresponding path program 1 times [2019-10-13 20:35:01,285 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 20:35:01,285 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [95602952] [2019-10-13 20:35:01,286 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 20:35:01,286 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 20:35:01,286 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 20:35:01,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 20:35:01,570 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2019-10-13 20:35:01,570 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [95602952] [2019-10-13 20:35:01,571 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 20:35:01,571 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-10-13 20:35:01,571 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [985386768] [2019-10-13 20:35:01,572 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-13 20:35:01,572 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 20:35:01,572 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-13 20:35:01,573 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-10-13 20:35:01,573 INFO L87 Difference]: Start difference. First operand 2609 states and 3343 transitions. Second operand 5 states. [2019-10-13 20:35:01,813 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 20:35:01,813 INFO L93 Difference]: Finished difference Result 5663 states and 7269 transitions. [2019-10-13 20:35:01,814 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-10-13 20:35:01,815 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 84 [2019-10-13 20:35:01,815 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 20:35:01,853 INFO L225 Difference]: With dead ends: 5663 [2019-10-13 20:35:01,853 INFO L226 Difference]: Without dead ends: 3943 [2019-10-13 20:35:01,861 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2019-10-13 20:35:01,867 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3943 states. [2019-10-13 20:35:02,040 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3943 to 3910. [2019-10-13 20:35:02,041 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3910 states. [2019-10-13 20:35:02,068 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3910 states to 3910 states and 5006 transitions. [2019-10-13 20:35:02,069 INFO L78 Accepts]: Start accepts. Automaton has 3910 states and 5006 transitions. Word has length 84 [2019-10-13 20:35:02,071 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 20:35:02,071 INFO L462 AbstractCegarLoop]: Abstraction has 3910 states and 5006 transitions. [2019-10-13 20:35:02,071 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-13 20:35:02,072 INFO L276 IsEmpty]: Start isEmpty. Operand 3910 states and 5006 transitions. [2019-10-13 20:35:02,076 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2019-10-13 20:35:02,077 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 20:35:02,077 INFO L380 BasicCegarLoop]: trace histogram [5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 20:35:02,077 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 20:35:02,078 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 20:35:02,078 INFO L82 PathProgramCache]: Analyzing trace with hash -483555356, now seen corresponding path program 1 times [2019-10-13 20:35:02,078 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 20:35:02,079 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1672420473] [2019-10-13 20:35:02,079 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 20:35:02,079 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 20:35:02,079 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 20:35:02,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 20:35:02,320 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2019-10-13 20:35:02,321 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1672420473] [2019-10-13 20:35:02,321 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 20:35:02,321 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-10-13 20:35:02,322 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1226337419] [2019-10-13 20:35:02,322 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-13 20:35:02,322 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 20:35:02,323 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-13 20:35:02,323 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-10-13 20:35:02,323 INFO L87 Difference]: Start difference. First operand 3910 states and 5006 transitions. Second operand 5 states. [2019-10-13 20:35:02,562 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 20:35:02,562 INFO L93 Difference]: Finished difference Result 8285 states and 10623 transitions. [2019-10-13 20:35:02,562 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-10-13 20:35:02,563 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 85 [2019-10-13 20:35:02,563 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 20:35:02,596 INFO L225 Difference]: With dead ends: 8285 [2019-10-13 20:35:02,596 INFO L226 Difference]: Without dead ends: 5262 [2019-10-13 20:35:02,609 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2019-10-13 20:35:02,617 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5262 states. [2019-10-13 20:35:02,828 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5262 to 5223. [2019-10-13 20:35:02,829 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5223 states. [2019-10-13 20:35:02,850 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5223 states to 5223 states and 6681 transitions. [2019-10-13 20:35:02,852 INFO L78 Accepts]: Start accepts. Automaton has 5223 states and 6681 transitions. Word has length 85 [2019-10-13 20:35:02,856 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 20:35:02,856 INFO L462 AbstractCegarLoop]: Abstraction has 5223 states and 6681 transitions. [2019-10-13 20:35:02,856 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-13 20:35:02,856 INFO L276 IsEmpty]: Start isEmpty. Operand 5223 states and 6681 transitions. [2019-10-13 20:35:02,865 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2019-10-13 20:35:02,866 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 20:35:02,866 INFO L380 BasicCegarLoop]: trace histogram [5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 20:35:02,866 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 20:35:02,866 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 20:35:02,867 INFO L82 PathProgramCache]: Analyzing trace with hash 1503750876, now seen corresponding path program 1 times [2019-10-13 20:35:02,867 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 20:35:02,869 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1072712434] [2019-10-13 20:35:02,869 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 20:35:02,869 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 20:35:02,869 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 20:35:02,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 20:35:03,064 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2019-10-13 20:35:03,064 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1072712434] [2019-10-13 20:35:03,065 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 20:35:03,065 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-10-13 20:35:03,065 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [891803988] [2019-10-13 20:35:03,066 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-13 20:35:03,066 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 20:35:03,067 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-13 20:35:03,067 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-10-13 20:35:03,068 INFO L87 Difference]: Start difference. First operand 5223 states and 6681 transitions. Second operand 5 states. [2019-10-13 20:35:03,338 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 20:35:03,339 INFO L93 Difference]: Finished difference Result 8728 states and 11168 transitions. [2019-10-13 20:35:03,339 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-10-13 20:35:03,339 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 87 [2019-10-13 20:35:03,342 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 20:35:03,383 INFO L225 Difference]: With dead ends: 8728 [2019-10-13 20:35:03,383 INFO L226 Difference]: Without dead ends: 5287 [2019-10-13 20:35:03,402 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2019-10-13 20:35:03,410 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5287 states. [2019-10-13 20:35:03,693 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5287 to 5239. [2019-10-13 20:35:03,693 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5239 states. [2019-10-13 20:35:03,711 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5239 states to 5239 states and 6689 transitions. [2019-10-13 20:35:03,712 INFO L78 Accepts]: Start accepts. Automaton has 5239 states and 6689 transitions. Word has length 87 [2019-10-13 20:35:03,713 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 20:35:03,713 INFO L462 AbstractCegarLoop]: Abstraction has 5239 states and 6689 transitions. [2019-10-13 20:35:03,713 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-13 20:35:03,713 INFO L276 IsEmpty]: Start isEmpty. Operand 5239 states and 6689 transitions. [2019-10-13 20:35:03,717 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2019-10-13 20:35:03,717 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 20:35:03,717 INFO L380 BasicCegarLoop]: trace histogram [5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 20:35:03,717 INFO L410 AbstractCegarLoop]: === Iteration 6 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 20:35:03,718 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 20:35:03,718 INFO L82 PathProgramCache]: Analyzing trace with hash 162930276, now seen corresponding path program 1 times [2019-10-13 20:35:03,718 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 20:35:03,718 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1357516664] [2019-10-13 20:35:03,718 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 20:35:03,719 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 20:35:03,719 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 20:35:03,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 20:35:03,883 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2019-10-13 20:35:03,883 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1357516664] [2019-10-13 20:35:03,884 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 20:35:03,884 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-10-13 20:35:03,884 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1111754112] [2019-10-13 20:35:03,885 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-13 20:35:03,885 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 20:35:03,885 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-13 20:35:03,885 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-10-13 20:35:03,885 INFO L87 Difference]: Start difference. First operand 5239 states and 6689 transitions. Second operand 5 states. [2019-10-13 20:35:04,097 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 20:35:04,097 INFO L93 Difference]: Finished difference Result 8764 states and 11184 transitions. [2019-10-13 20:35:04,097 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-10-13 20:35:04,098 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 88 [2019-10-13 20:35:04,098 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 20:35:04,127 INFO L225 Difference]: With dead ends: 8764 [2019-10-13 20:35:04,128 INFO L226 Difference]: Without dead ends: 5303 [2019-10-13 20:35:04,144 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2019-10-13 20:35:04,152 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5303 states. [2019-10-13 20:35:04,352 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5303 to 5255. [2019-10-13 20:35:04,353 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5255 states. [2019-10-13 20:35:04,373 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5255 states to 5255 states and 6697 transitions. [2019-10-13 20:35:04,374 INFO L78 Accepts]: Start accepts. Automaton has 5255 states and 6697 transitions. Word has length 88 [2019-10-13 20:35:04,375 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 20:35:04,375 INFO L462 AbstractCegarLoop]: Abstraction has 5255 states and 6697 transitions. [2019-10-13 20:35:04,375 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-13 20:35:04,375 INFO L276 IsEmpty]: Start isEmpty. Operand 5255 states and 6697 transitions. [2019-10-13 20:35:04,379 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2019-10-13 20:35:04,379 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 20:35:04,379 INFO L380 BasicCegarLoop]: trace histogram [5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 20:35:04,379 INFO L410 AbstractCegarLoop]: === Iteration 7 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 20:35:04,380 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 20:35:04,380 INFO L82 PathProgramCache]: Analyzing trace with hash -1493340641, now seen corresponding path program 1 times [2019-10-13 20:35:04,380 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 20:35:04,380 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1818056103] [2019-10-13 20:35:04,381 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 20:35:04,381 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 20:35:04,381 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 20:35:04,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 20:35:04,618 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2019-10-13 20:35:04,619 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1818056103] [2019-10-13 20:35:04,619 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 20:35:04,619 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-10-13 20:35:04,619 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1520944796] [2019-10-13 20:35:04,621 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-13 20:35:04,621 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 20:35:04,621 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-13 20:35:04,621 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-10-13 20:35:04,622 INFO L87 Difference]: Start difference. First operand 5255 states and 6697 transitions. Second operand 5 states. [2019-10-13 20:35:04,868 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 20:35:04,868 INFO L93 Difference]: Finished difference Result 8704 states and 11080 transitions. [2019-10-13 20:35:04,868 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-10-13 20:35:04,869 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 89 [2019-10-13 20:35:04,869 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 20:35:04,902 INFO L225 Difference]: With dead ends: 8704 [2019-10-13 20:35:04,902 INFO L226 Difference]: Without dead ends: 5223 [2019-10-13 20:35:04,917 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2019-10-13 20:35:04,926 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5223 states. [2019-10-13 20:35:05,708 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5223 to 5187. [2019-10-13 20:35:05,708 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5187 states. [2019-10-13 20:35:05,726 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5187 states to 5187 states and 6593 transitions. [2019-10-13 20:35:05,728 INFO L78 Accepts]: Start accepts. Automaton has 5187 states and 6593 transitions. Word has length 89 [2019-10-13 20:35:05,728 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 20:35:05,728 INFO L462 AbstractCegarLoop]: Abstraction has 5187 states and 6593 transitions. [2019-10-13 20:35:05,729 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-13 20:35:05,729 INFO L276 IsEmpty]: Start isEmpty. Operand 5187 states and 6593 transitions. [2019-10-13 20:35:05,734 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2019-10-13 20:35:05,735 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 20:35:05,735 INFO L380 BasicCegarLoop]: trace histogram [5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 20:35:05,735 INFO L410 AbstractCegarLoop]: === Iteration 8 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 20:35:05,736 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 20:35:05,736 INFO L82 PathProgramCache]: Analyzing trace with hash -147046412, now seen corresponding path program 1 times [2019-10-13 20:35:05,736 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 20:35:05,736 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1249929178] [2019-10-13 20:35:05,736 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 20:35:05,737 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 20:35:05,737 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 20:35:05,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 20:35:05,931 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2019-10-13 20:35:05,932 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1249929178] [2019-10-13 20:35:05,932 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 20:35:05,932 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-10-13 20:35:05,932 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [371671687] [2019-10-13 20:35:05,933 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-13 20:35:05,933 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 20:35:05,934 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-13 20:35:05,934 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-10-13 20:35:05,934 INFO L87 Difference]: Start difference. First operand 5187 states and 6593 transitions. Second operand 5 states. [2019-10-13 20:35:06,233 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 20:35:06,233 INFO L93 Difference]: Finished difference Result 10677 states and 13570 transitions. [2019-10-13 20:35:06,234 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-10-13 20:35:06,234 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 86 [2019-10-13 20:35:06,234 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 20:35:06,269 INFO L225 Difference]: With dead ends: 10677 [2019-10-13 20:35:06,270 INFO L226 Difference]: Without dead ends: 6366 [2019-10-13 20:35:06,288 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2019-10-13 20:35:06,299 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6366 states. [2019-10-13 20:35:06,536 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6366 to 6327. [2019-10-13 20:35:06,536 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6327 states. [2019-10-13 20:35:06,555 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6327 states to 6327 states and 8009 transitions. [2019-10-13 20:35:06,556 INFO L78 Accepts]: Start accepts. Automaton has 6327 states and 8009 transitions. Word has length 86 [2019-10-13 20:35:06,557 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 20:35:06,557 INFO L462 AbstractCegarLoop]: Abstraction has 6327 states and 8009 transitions. [2019-10-13 20:35:06,557 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-13 20:35:06,557 INFO L276 IsEmpty]: Start isEmpty. Operand 6327 states and 8009 transitions. [2019-10-13 20:35:06,561 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2019-10-13 20:35:06,561 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 20:35:06,562 INFO L380 BasicCegarLoop]: trace histogram [5, 5, 5, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 20:35:06,562 INFO L410 AbstractCegarLoop]: === Iteration 9 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 20:35:06,562 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 20:35:06,562 INFO L82 PathProgramCache]: Analyzing trace with hash 601773685, now seen corresponding path program 1 times [2019-10-13 20:35:06,563 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 20:35:06,563 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1897836456] [2019-10-13 20:35:06,563 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 20:35:06,563 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 20:35:06,563 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 20:35:06,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 20:35:06,766 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 1 proven. 4 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2019-10-13 20:35:06,767 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1897836456] [2019-10-13 20:35:06,767 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1011946925] [2019-10-13 20:35:06,767 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-13 20:35:07,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 20:35:07,530 INFO L256 TraceCheckSpWp]: Trace formula consists of 2234 conjuncts, 2 conjunts are in the unsatisfiable core [2019-10-13 20:35:07,553 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-13 20:35:07,606 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 50 trivial. 0 not checked. [2019-10-13 20:35:07,606 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-13 20:35:07,676 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 50 trivial. 0 not checked. [2019-10-13 20:35:07,677 INFO L223 tionRefinementEngine]: Constructing automaton from 2 perfect and 1 imperfect interpolant sequences. [2019-10-13 20:35:07,677 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [9] total 10 [2019-10-13 20:35:07,678 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [897951647] [2019-10-13 20:35:07,679 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-13 20:35:07,679 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 20:35:07,679 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-13 20:35:07,679 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2019-10-13 20:35:07,679 INFO L87 Difference]: Start difference. First operand 6327 states and 8009 transitions. Second operand 3 states. [2019-10-13 20:35:07,893 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 20:35:07,894 INFO L93 Difference]: Finished difference Result 12180 states and 15496 transitions. [2019-10-13 20:35:07,895 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-13 20:35:07,895 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 99 [2019-10-13 20:35:07,895 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 20:35:07,924 INFO L225 Difference]: With dead ends: 12180 [2019-10-13 20:35:07,924 INFO L226 Difference]: Without dead ends: 6336 [2019-10-13 20:35:07,944 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 210 GetRequests, 202 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2019-10-13 20:35:07,953 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6336 states. [2019-10-13 20:35:08,195 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6336 to 6336. [2019-10-13 20:35:08,196 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6336 states. [2019-10-13 20:35:08,214 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6336 states to 6336 states and 8018 transitions. [2019-10-13 20:35:08,216 INFO L78 Accepts]: Start accepts. Automaton has 6336 states and 8018 transitions. Word has length 99 [2019-10-13 20:35:08,216 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 20:35:08,216 INFO L462 AbstractCegarLoop]: Abstraction has 6336 states and 8018 transitions. [2019-10-13 20:35:08,216 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-13 20:35:08,217 INFO L276 IsEmpty]: Start isEmpty. Operand 6336 states and 8018 transitions. [2019-10-13 20:35:08,221 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2019-10-13 20:35:08,221 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 20:35:08,221 INFO L380 BasicCegarLoop]: trace histogram [5, 5, 5, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 20:35:08,422 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-13 20:35:08,423 INFO L410 AbstractCegarLoop]: === Iteration 10 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 20:35:08,423 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 20:35:08,424 INFO L82 PathProgramCache]: Analyzing trace with hash 92300595, now seen corresponding path program 1 times [2019-10-13 20:35:08,425 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 20:35:08,425 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [398834371] [2019-10-13 20:35:08,425 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 20:35:08,426 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 20:35:08,426 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 20:35:08,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 20:35:08,739 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 1 proven. 4 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2019-10-13 20:35:08,740 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [398834371] [2019-10-13 20:35:08,740 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1273700813] [2019-10-13 20:35:08,740 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-13 20:35:09,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 20:35:09,432 INFO L256 TraceCheckSpWp]: Trace formula consists of 2241 conjuncts, 3 conjunts are in the unsatisfiable core [2019-10-13 20:35:09,440 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-13 20:35:09,568 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 50 trivial. 0 not checked. [2019-10-13 20:35:09,568 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-13 20:35:09,633 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2019-10-13 20:35:09,633 INFO L223 tionRefinementEngine]: Constructing automaton from 2 perfect and 1 imperfect interpolant sequences. [2019-10-13 20:35:09,634 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [9] total 10 [2019-10-13 20:35:09,634 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [804910191] [2019-10-13 20:35:09,634 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-13 20:35:09,635 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 20:35:09,635 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-13 20:35:09,635 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2019-10-13 20:35:09,636 INFO L87 Difference]: Start difference. First operand 6336 states and 8018 transitions. Second operand 3 states. [2019-10-13 20:35:09,788 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 20:35:09,789 INFO L93 Difference]: Finished difference Result 6336 states and 8018 transitions. [2019-10-13 20:35:09,789 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-13 20:35:09,790 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 99 [2019-10-13 20:35:09,790 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 20:35:09,790 INFO L225 Difference]: With dead ends: 6336 [2019-10-13 20:35:09,791 INFO L226 Difference]: Without dead ends: 0 [2019-10-13 20:35:09,806 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 210 GetRequests, 202 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2019-10-13 20:35:09,807 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-10-13 20:35:09,807 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-10-13 20:35:09,807 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-10-13 20:35:09,807 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-10-13 20:35:09,809 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 99 [2019-10-13 20:35:09,809 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 20:35:09,809 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-10-13 20:35:09,809 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-13 20:35:09,810 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-10-13 20:35:09,810 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-10-13 20:35:10,026 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-13 20:35:10,031 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-10-13 20:35:11,530 WARN L191 SmtUtils]: Spent 172.00 ms on a formula simplification that was a NOOP. DAG size: 1 [2019-10-13 20:35:14,021 WARN L191 SmtUtils]: Spent 210.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 38 [2019-10-13 20:35:14,927 WARN L191 SmtUtils]: Spent 177.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 38 [2019-10-13 20:35:15,297 WARN L191 SmtUtils]: Spent 175.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 38 [2019-10-13 20:35:15,545 WARN L191 SmtUtils]: Spent 191.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 38 [2019-10-13 20:35:15,669 WARN L191 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 18 [2019-10-13 20:35:16,019 WARN L191 SmtUtils]: Spent 223.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 38 [2019-10-13 20:35:16,352 WARN L191 SmtUtils]: Spent 191.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 38 [2019-10-13 20:35:16,554 WARN L191 SmtUtils]: Spent 199.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 38 [2019-10-13 20:35:17,004 WARN L191 SmtUtils]: Spent 210.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 38 [2019-10-13 20:35:17,331 WARN L191 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 18 [2019-10-13 20:35:17,510 WARN L191 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 22 [2019-10-13 20:35:18,016 WARN L191 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 35 [2019-10-13 20:35:18,247 WARN L191 SmtUtils]: Spent 192.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 38 [2019-10-13 20:35:18,443 WARN L191 SmtUtils]: Spent 193.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 38 [2019-10-13 20:35:19,427 WARN L191 SmtUtils]: Spent 220.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 38 [2019-10-13 20:35:20,432 WARN L191 SmtUtils]: Spent 194.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 38