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-consumption/linux-3.8-rc1-32_7a-drivers--media--common--saa7146--saa7146.ko-ldv_main0.cil.out.i -------------------------------------------------------------------------------- This is Ultimate 0.1.24-f4eb214f-m [2019-10-13 20:21:35,664 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-13 20:21:35,667 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-13 20:21:35,679 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-13 20:21:35,679 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-13 20:21:35,680 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-13 20:21:35,681 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-13 20:21:35,683 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-13 20:21:35,685 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-13 20:21:35,686 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-13 20:21:35,687 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-13 20:21:35,688 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-13 20:21:35,688 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-13 20:21:35,689 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-13 20:21:35,690 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-13 20:21:35,691 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-13 20:21:35,691 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-13 20:21:35,696 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-13 20:21:35,698 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-13 20:21:35,700 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-13 20:21:35,701 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-13 20:21:35,702 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-13 20:21:35,703 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-13 20:21:35,704 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-13 20:21:35,706 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-13 20:21:35,707 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-13 20:21:35,707 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-13 20:21:35,708 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-13 20:21:35,708 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-13 20:21:35,709 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-13 20:21:35,709 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-13 20:21:35,710 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-13 20:21:35,711 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-13 20:21:35,711 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-13 20:21:35,712 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-13 20:21:35,713 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-13 20:21:35,713 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-13 20:21:35,714 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-13 20:21:35,714 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-13 20:21:35,715 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-13 20:21:35,715 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-13 20:21:35,716 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 20:21:35,730 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-13 20:21:35,730 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-13 20:21:35,731 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-13 20:21:35,731 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-13 20:21:35,732 INFO L138 SettingsManager]: * Use SBE=true [2019-10-13 20:21:35,732 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-13 20:21:35,732 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-13 20:21:35,732 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-13 20:21:35,732 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-13 20:21:35,733 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-13 20:21:35,733 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-13 20:21:35,733 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-13 20:21:35,733 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-13 20:21:35,733 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-13 20:21:35,734 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-13 20:21:35,734 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-13 20:21:35,734 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-13 20:21:35,734 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-13 20:21:35,734 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-13 20:21:35,735 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-13 20:21:35,735 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-13 20:21:35,735 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-13 20:21:35,735 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-13 20:21:35,735 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-13 20:21:35,736 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-13 20:21:35,736 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-13 20:21:35,736 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-13 20:21:35,736 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-13 20:21:35,736 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 20:21:36,008 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-13 20:21:36,021 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-13 20:21:36,024 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-13 20:21:36,026 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-13 20:21:36,026 INFO L275 PluginConnector]: CDTParser initialized [2019-10-13 20:21:36,027 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-consumption/linux-3.8-rc1-32_7a-drivers--media--common--saa7146--saa7146.ko-ldv_main0.cil.out.i [2019-10-13 20:21:36,095 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cf4fa2469/196d0adc155e45919a60511c958e4559/FLAG991d8a6eb [2019-10-13 20:21:36,887 INFO L306 CDTParser]: Found 1 translation units. [2019-10-13 20:21:36,888 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ldv-consumption/linux-3.8-rc1-32_7a-drivers--media--common--saa7146--saa7146.ko-ldv_main0.cil.out.i [2019-10-13 20:21:36,933 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cf4fa2469/196d0adc155e45919a60511c958e4559/FLAG991d8a6eb [2019-10-13 20:21:37,442 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cf4fa2469/196d0adc155e45919a60511c958e4559 [2019-10-13 20:21:37,452 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-13 20:21:37,453 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-13 20:21:37,454 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-13 20:21:37,454 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-13 20:21:37,458 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-13 20:21:37,459 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 08:21:37" (1/1) ... [2019-10-13 20:21:37,461 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2016a518 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 08:21:37, skipping insertion in model container [2019-10-13 20:21:37,462 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 08:21:37" (1/1) ... [2019-10-13 20:21:37,469 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-13 20:21:37,586 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-13 20:21:39,391 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-13 20:21:39,405 INFO L188 MainTranslator]: Completed pre-run [2019-10-13 20:21:39,691 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-13 20:21:39,922 INFO L192 MainTranslator]: Completed translation [2019-10-13 20:21:39,923 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 08:21:39 WrapperNode [2019-10-13 20:21:39,923 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-13 20:21:39,925 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-13 20:21:39,925 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-13 20:21:39,925 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-13 20:21:39,946 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 08:21:39" (1/1) ... [2019-10-13 20:21:39,947 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 08:21:39" (1/1) ... [2019-10-13 20:21:40,062 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 08:21:39" (1/1) ... [2019-10-13 20:21:40,063 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 08:21:39" (1/1) ... [2019-10-13 20:21:40,168 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 08:21:39" (1/1) ... [2019-10-13 20:21:40,185 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 08:21:39" (1/1) ... [2019-10-13 20:21:40,219 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 08:21:39" (1/1) ... [2019-10-13 20:21:40,241 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-13 20:21:40,242 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-13 20:21:40,245 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-13 20:21:40,245 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-13 20:21:40,248 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 08:21:39" (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 20:21:40,345 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-13 20:21:40,345 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-13 20:21:40,345 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~int~X~int~X~$Pointer$~TO~int [2019-10-13 20:21:40,345 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~int~X~int~X~$Pointer$~TO~VOID [2019-10-13 20:21:40,346 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~int~X~$Pointer$~X~~gfp_t~0~X~$Pointer$~TO~$Pointer$ [2019-10-13 20:21:40,346 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~int~X~$Pointer$~X~~dma_addr_t~0~X~$Pointer$~TO~VOID [2019-10-13 20:21:40,347 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~VOID [2019-10-13 20:21:40,347 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~int~TO~VOID [2019-10-13 20:21:40,347 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2019-10-13 20:21:40,348 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2019-10-13 20:21:40,348 INFO L138 BoogieDeclarations]: Found implementation of procedure variable_test_bit [2019-10-13 20:21:40,348 INFO L138 BoogieDeclarations]: Found implementation of procedure get_current [2019-10-13 20:21:40,348 INFO L138 BoogieDeclarations]: Found implementation of procedure test_ti_thread_flag [2019-10-13 20:21:40,349 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2019-10-13 20:21:40,350 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2019-10-13 20:21:40,350 INFO L138 BoogieDeclarations]: Found implementation of procedure readl [2019-10-13 20:21:40,353 INFO L138 BoogieDeclarations]: Found implementation of procedure writel [2019-10-13 20:21:40,353 INFO L138 BoogieDeclarations]: Found implementation of procedure test_tsk_thread_flag [2019-10-13 20:21:40,354 INFO L138 BoogieDeclarations]: Found implementation of procedure signal_pending [2019-10-13 20:21:40,354 INFO L138 BoogieDeclarations]: Found implementation of procedure i2c_get_adapdata [2019-10-13 20:21:40,354 INFO L138 BoogieDeclarations]: Found implementation of procedure i2c_set_adapdata [2019-10-13 20:21:40,355 INFO L138 BoogieDeclarations]: Found implementation of procedure to_saa7146_dev [2019-10-13 20:21:40,355 INFO L138 BoogieDeclarations]: Found implementation of procedure SAA7146_IER_DISABLE [2019-10-13 20:21:40,355 INFO L138 BoogieDeclarations]: Found implementation of procedure SAA7146_IER_ENABLE [2019-10-13 20:21:40,355 INFO L138 BoogieDeclarations]: Found implementation of procedure saa7146_i2c_func [2019-10-13 20:21:40,356 INFO L138 BoogieDeclarations]: Found implementation of procedure saa7146_i2c_status [2019-10-13 20:21:40,356 INFO L138 BoogieDeclarations]: Found implementation of procedure saa7146_i2c_msg_prepare [2019-10-13 20:21:40,356 INFO L138 BoogieDeclarations]: Found implementation of procedure saa7146_i2c_msg_cleanup [2019-10-13 20:21:40,356 INFO L138 BoogieDeclarations]: Found implementation of procedure saa7146_i2c_reset [2019-10-13 20:21:40,357 INFO L138 BoogieDeclarations]: Found implementation of procedure saa7146_i2c_writeout [2019-10-13 20:21:40,357 INFO L138 BoogieDeclarations]: Found implementation of procedure saa7146_i2c_transfer [2019-10-13 20:21:40,357 INFO L138 BoogieDeclarations]: Found implementation of procedure saa7146_i2c_xfer [2019-10-13 20:21:40,357 INFO L138 BoogieDeclarations]: Found implementation of procedure saa7146_i2c_adapter_prepare [2019-10-13 20:21:40,358 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-13 20:21:40,358 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_1 [2019-10-13 20:21:40,358 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_2 [2019-10-13 20:21:40,359 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_3 [2019-10-13 20:21:40,359 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_trylock_4 [2019-10-13 20:21:40,360 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_5 [2019-10-13 20:21:40,361 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_6 [2019-10-13 20:21:40,361 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_7 [2019-10-13 20:21:40,361 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_8 [2019-10-13 20:21:40,361 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_9 [2019-10-13 20:21:40,362 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_interruptible_10 [2019-10-13 20:21:40,362 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_11 [2019-10-13 20:21:40,362 INFO L138 BoogieDeclarations]: Found implementation of procedure arch_local_save_flags [2019-10-13 20:21:40,362 INFO L138 BoogieDeclarations]: Found implementation of procedure arch_irqs_disabled_flags [2019-10-13 20:21:40,364 INFO L138 BoogieDeclarations]: Found implementation of procedure ioremap [2019-10-13 20:21:40,364 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2019-10-13 20:21:40,364 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2019-10-13 20:21:40,365 INFO L138 BoogieDeclarations]: Found implementation of procedure __kmalloc [2019-10-13 20:21:40,365 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2019-10-13 20:21:40,365 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc_array [2019-10-13 20:21:40,365 INFO L138 BoogieDeclarations]: Found implementation of procedure kcalloc [2019-10-13 20:21:40,366 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2019-10-13 20:21:40,366 INFO L138 BoogieDeclarations]: Found implementation of procedure PageHighMem [2019-10-13 20:21:40,366 INFO L138 BoogieDeclarations]: Found implementation of procedure lowmem_page_address [2019-10-13 20:21:40,366 INFO L138 BoogieDeclarations]: Found implementation of procedure sg_assign_page [2019-10-13 20:21:40,366 INFO L138 BoogieDeclarations]: Found implementation of procedure sg_set_page [2019-10-13 20:21:40,367 INFO L138 BoogieDeclarations]: Found implementation of procedure sg_page [2019-10-13 20:21:40,367 INFO L138 BoogieDeclarations]: Found implementation of procedure sg_virt [2019-10-13 20:21:40,367 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2019-10-13 20:21:40,368 INFO L138 BoogieDeclarations]: Found implementation of procedure is_device_dma_capable [2019-10-13 20:21:40,369 INFO L138 BoogieDeclarations]: Found implementation of procedure kmemcheck_mark_initialized [2019-10-13 20:21:40,369 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2019-10-13 20:21:40,369 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_map_sg_attrs [2019-10-13 20:21:40,369 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_unmap_sg_attrs [2019-10-13 20:21:40,370 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_alloc_coherent_mask [2019-10-13 20:21:40,370 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_alloc_coherent_gfp_flags [2019-10-13 20:21:40,370 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_alloc_attrs [2019-10-13 20:21:40,370 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_free_attrs [2019-10-13 20:21:40,371 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_alloc_consistent [2019-10-13 20:21:40,371 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_free_consistent [2019-10-13 20:21:40,372 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_map_sg [2019-10-13 20:21:40,373 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_unmap_sg [2019-10-13 20:21:40,373 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_get_drvdata [2019-10-13 20:21:40,373 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_drvdata [2019-10-13 20:21:40,373 INFO L138 BoogieDeclarations]: Found implementation of procedure request_irq [2019-10-13 20:21:40,374 INFO L138 BoogieDeclarations]: Found implementation of procedure saa7146_setgpio [2019-10-13 20:21:40,375 INFO L138 BoogieDeclarations]: Found implementation of procedure saa7146_wait_for_debi_done_sleep [2019-10-13 20:21:40,375 INFO L138 BoogieDeclarations]: Found implementation of procedure saa7146_wait_for_debi_done_busyloop [2019-10-13 20:21:40,376 INFO L138 BoogieDeclarations]: Found implementation of procedure saa7146_wait_for_debi_done [2019-10-13 20:21:40,376 INFO L138 BoogieDeclarations]: Found implementation of procedure vmalloc_to_sg [2019-10-13 20:21:40,376 INFO L138 BoogieDeclarations]: Found implementation of procedure saa7146_vmalloc_build_pgtable [2019-10-13 20:21:40,377 INFO L138 BoogieDeclarations]: Found implementation of procedure saa7146_vfree_destroy_pgtable [2019-10-13 20:21:40,378 INFO L138 BoogieDeclarations]: Found implementation of procedure saa7146_pgtable_free [2019-10-13 20:21:40,378 INFO L138 BoogieDeclarations]: Found implementation of procedure saa7146_pgtable_alloc [2019-10-13 20:21:40,380 INFO L138 BoogieDeclarations]: Found implementation of procedure saa7146_pgtable_build_single [2019-10-13 20:21:40,380 INFO L138 BoogieDeclarations]: Found implementation of procedure interrupt_hw [2019-10-13 20:21:40,380 INFO L138 BoogieDeclarations]: Found implementation of procedure saa7146_init_one [2019-10-13 20:21:40,380 INFO L138 BoogieDeclarations]: Found implementation of procedure saa7146_remove_one [2019-10-13 20:21:40,381 INFO L138 BoogieDeclarations]: Found implementation of procedure saa7146_register_extension [2019-10-13 20:21:40,381 INFO L138 BoogieDeclarations]: Found implementation of procedure saa7146_unregister_extension [2019-10-13 20:21:40,381 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_23 [2019-10-13 20:21:40,381 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_24 [2019-10-13 20:21:40,382 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_25 [2019-10-13 20:21:40,382 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_trylock_26 [2019-10-13 20:21:40,382 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_27 [2019-10-13 20:21:40,382 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_28 [2019-10-13 20:21:40,383 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_29 [2019-10-13 20:21:40,383 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2019-10-13 20:21:40,383 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2019-10-13 20:21:40,383 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_interruptible_i2c_lock_of_saa7146_dev [2019-10-13 20:21:40,384 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_killable_i2c_lock_of_saa7146_dev [2019-10-13 20:21:40,384 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_i2c_lock_of_saa7146_dev [2019-10-13 20:21:40,384 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_trylock_i2c_lock_of_saa7146_dev [2019-10-13 20:21:40,384 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_dec_and_mutex_lock_i2c_lock_of_saa7146_dev [2019-10-13 20:21:40,385 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_is_locked_i2c_lock_of_saa7146_dev [2019-10-13 20:21:40,385 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_i2c_lock_of_saa7146_dev [2019-10-13 20:21:40,385 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_interruptible_lock [2019-10-13 20:21:40,385 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_killable_lock [2019-10-13 20:21:40,386 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_lock [2019-10-13 20:21:40,386 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_trylock_lock [2019-10-13 20:21:40,386 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_dec_and_mutex_lock_lock [2019-10-13 20:21:40,387 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_is_locked_lock [2019-10-13 20:21:40,387 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_lock [2019-10-13 20:21:40,388 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_interruptible_lock_of_v4l2_ctrl_handler [2019-10-13 20:21:40,388 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_killable_lock_of_v4l2_ctrl_handler [2019-10-13 20:21:40,388 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_lock_of_v4l2_ctrl_handler [2019-10-13 20:21:40,388 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_trylock_lock_of_v4l2_ctrl_handler [2019-10-13 20:21:40,390 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_dec_and_mutex_lock_lock_of_v4l2_ctrl_handler [2019-10-13 20:21:40,390 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_is_locked_lock_of_v4l2_ctrl_handler [2019-10-13 20:21:40,391 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_lock_of_v4l2_ctrl_handler [2019-10-13 20:21:40,391 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_interruptible_mutex_of_device [2019-10-13 20:21:40,392 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_killable_mutex_of_device [2019-10-13 20:21:40,393 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_mutex_of_device [2019-10-13 20:21:40,393 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_trylock_mutex_of_device [2019-10-13 20:21:40,393 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_dec_and_mutex_lock_mutex_of_device [2019-10-13 20:21:40,393 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_is_locked_mutex_of_device [2019-10-13 20:21:40,393 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_mutex_of_device [2019-10-13 20:21:40,393 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_interruptible_vb_lock_of_videobuf_queue [2019-10-13 20:21:40,395 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_killable_vb_lock_of_videobuf_queue [2019-10-13 20:21:40,395 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_vb_lock_of_videobuf_queue [2019-10-13 20:21:40,395 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_trylock_vb_lock_of_videobuf_queue [2019-10-13 20:21:40,395 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_dec_and_mutex_lock_vb_lock_of_videobuf_queue [2019-10-13 20:21:40,396 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_is_locked_vb_lock_of_videobuf_queue [2019-10-13 20:21:40,398 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_vb_lock_of_videobuf_queue [2019-10-13 20:21:40,401 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize [2019-10-13 20:21:40,401 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2019-10-13 20:21:40,402 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2019-10-13 20:21:40,402 INFO L138 BoogieDeclarations]: Found implementation of procedure __dynamic_pr_debug [2019-10-13 20:21:40,403 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_waitqueue_head [2019-10-13 20:21:40,403 INFO L138 BoogieDeclarations]: Found implementation of procedure __mutex_init [2019-10-13 20:21:40,403 INFO L138 BoogieDeclarations]: Found implementation of procedure __pci_register_driver [2019-10-13 20:21:40,409 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2019-10-13 20:21:40,409 INFO L138 BoogieDeclarations]: Found implementation of procedure __wake_up [2019-10-13 20:21:40,409 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock_irqsave [2019-10-13 20:21:40,409 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_unlock_irqrestore [2019-10-13 20:21:40,410 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_dma_alloc_coherent [2019-10-13 20:21:40,410 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_dma_free_coherent [2019-10-13 20:21:40,410 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_dma_map_sg [2019-10-13 20:21:40,410 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_dma_unmap_sg [2019-10-13 20:21:40,411 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_get_drvdata [2019-10-13 20:21:40,411 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_set_drvdata [2019-10-13 20:21:40,411 INFO L138 BoogieDeclarations]: Found implementation of procedure finish_wait [2019-10-13 20:21:40,411 INFO L138 BoogieDeclarations]: Found implementation of procedure free_irq [2019-10-13 20:21:40,412 INFO L138 BoogieDeclarations]: Found implementation of procedure ioremap_nocache [2019-10-13 20:21:40,412 INFO L138 BoogieDeclarations]: Found implementation of procedure iounmap [2019-10-13 20:21:40,412 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_handler_precall [2019-10-13 20:21:40,412 INFO L138 BoogieDeclarations]: Found implementation of procedure msleep [2019-10-13 20:21:40,412 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock [2019-10-13 20:21:40,413 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_interruptible [2019-10-13 20:21:40,413 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_trylock [2019-10-13 20:21:40,413 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2019-10-13 20:21:40,413 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_device [2019-10-13 20:21:40,414 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_enable_device [2019-10-13 20:21:40,414 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_release_region [2019-10-13 20:21:40,414 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_request_region [2019-10-13 20:21:40,414 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_master [2019-10-13 20:21:40,414 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_unregister_driver [2019-10-13 20:21:40,415 INFO L138 BoogieDeclarations]: Found implementation of procedure prepare_to_wait [2019-10-13 20:21:40,415 INFO L138 BoogieDeclarations]: Found implementation of procedure printk [2019-10-13 20:21:40,415 INFO L138 BoogieDeclarations]: Found implementation of procedure request_threaded_irq [2019-10-13 20:21:40,415 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule_timeout [2019-10-13 20:21:40,416 INFO L138 BoogieDeclarations]: Found implementation of procedure sg_init_table [2019-10-13 20:21:40,416 INFO L138 BoogieDeclarations]: Found implementation of procedure sg_next [2019-10-13 20:21:40,416 INFO L138 BoogieDeclarations]: Found implementation of procedure usecs_to_jiffies [2019-10-13 20:21:40,416 INFO L138 BoogieDeclarations]: Found implementation of procedure vfree [2019-10-13 20:21:40,416 INFO L138 BoogieDeclarations]: Found implementation of procedure vmalloc_32 [2019-10-13 20:21:40,417 INFO L138 BoogieDeclarations]: Found implementation of procedure vmalloc_to_page [2019-10-13 20:21:40,417 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2019-10-13 20:21:40,417 INFO L138 BoogieDeclarations]: Found implementation of procedure external_alloc [2019-10-13 20:21:40,417 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2019-10-13 20:21:40,418 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2019-10-13 20:21:40,418 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-13 20:21:40,418 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2019-10-13 20:21:40,419 INFO L130 BoogieDeclarations]: Found specification of procedure variable_test_bit [2019-10-13 20:21:40,419 INFO L130 BoogieDeclarations]: Found specification of procedure printk [2019-10-13 20:21:40,419 INFO L130 BoogieDeclarations]: Found specification of procedure __dynamic_pr_debug [2019-10-13 20:21:40,419 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2019-10-13 20:21:40,420 INFO L130 BoogieDeclarations]: Found specification of procedure get_current [2019-10-13 20:21:40,420 INFO L130 BoogieDeclarations]: Found specification of procedure memset [2019-10-13 20:21:40,420 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_trylock [2019-10-13 20:21:40,420 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_trylock_4 [2019-10-13 20:21:40,420 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2019-10-13 20:21:40,421 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_2 [2019-10-13 20:21:40,421 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_5 [2019-10-13 20:21:40,421 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_7 [2019-10-13 20:21:40,421 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_9 [2019-10-13 20:21:40,422 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_11 [2019-10-13 20:21:40,422 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_interruptible [2019-10-13 20:21:40,422 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_interruptible_10 [2019-10-13 20:21:40,422 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock [2019-10-13 20:21:40,423 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_1 [2019-10-13 20:21:40,423 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_3 [2019-10-13 20:21:40,423 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_6 [2019-10-13 20:21:40,423 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_8 [2019-10-13 20:21:40,423 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_interruptible_i2c_lock_of_saa7146_dev [2019-10-13 20:21:40,424 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_i2c_lock_of_saa7146_dev [2019-10-13 20:21:40,424 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_lock [2019-10-13 20:21:40,424 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_lock [2019-10-13 20:21:40,424 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_lock_of_v4l2_ctrl_handler [2019-10-13 20:21:40,425 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_lock_of_v4l2_ctrl_handler [2019-10-13 20:21:40,425 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_mutex_of_device [2019-10-13 20:21:40,425 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_trylock_mutex_of_device [2019-10-13 20:21:40,425 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_mutex_of_device [2019-10-13 20:21:40,426 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_vb_lock_of_videobuf_queue [2019-10-13 20:21:40,426 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_vb_lock_of_videobuf_queue [2019-10-13 20:21:40,426 INFO L130 BoogieDeclarations]: Found specification of procedure test_ti_thread_flag [2019-10-13 20:21:40,426 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock_irqsave [2019-10-13 20:21:40,426 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_unlock_irqrestore [2019-10-13 20:21:40,427 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2019-10-13 20:21:40,427 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2019-10-13 20:21:40,427 INFO L130 BoogieDeclarations]: Found specification of procedure prepare_to_wait [2019-10-13 20:21:40,427 INFO L130 BoogieDeclarations]: Found specification of procedure finish_wait [2019-10-13 20:21:40,428 INFO L130 BoogieDeclarations]: Found specification of procedure autoremove_wake_function [2019-10-13 20:21:40,428 INFO L130 BoogieDeclarations]: Found specification of procedure readl [2019-10-13 20:21:40,428 INFO L130 BoogieDeclarations]: Found specification of procedure writel [2019-10-13 20:21:40,428 INFO L130 BoogieDeclarations]: Found specification of procedure dev_get_drvdata [2019-10-13 20:21:40,428 INFO L130 BoogieDeclarations]: Found specification of procedure dev_set_drvdata [2019-10-13 20:21:40,429 INFO L130 BoogieDeclarations]: Found specification of procedure schedule_timeout [2019-10-13 20:21:40,429 INFO L130 BoogieDeclarations]: Found specification of procedure test_tsk_thread_flag [2019-10-13 20:21:40,429 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-13 20:21:40,429 INFO L130 BoogieDeclarations]: Found specification of procedure signal_pending [2019-10-13 20:21:40,430 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2019-10-13 20:21:40,430 INFO L130 BoogieDeclarations]: Found specification of procedure msleep [2019-10-13 20:21:40,430 INFO L130 BoogieDeclarations]: Found specification of procedure i2c_get_adapdata [2019-10-13 20:21:40,430 INFO L130 BoogieDeclarations]: Found specification of procedure i2c_set_adapdata [2019-10-13 20:21:40,431 INFO L130 BoogieDeclarations]: Found specification of procedure to_saa7146_dev [2019-10-13 20:21:40,431 INFO L130 BoogieDeclarations]: Found specification of procedure saa7146_i2c_adapter_prepare [2019-10-13 20:21:40,431 INFO L130 BoogieDeclarations]: Found specification of procedure SAA7146_IER_DISABLE [2019-10-13 20:21:40,431 INFO L130 BoogieDeclarations]: Found specification of procedure SAA7146_IER_ENABLE [2019-10-13 20:21:40,431 INFO L130 BoogieDeclarations]: Found specification of procedure saa7146_i2c_func [2019-10-13 20:21:40,432 INFO L130 BoogieDeclarations]: Found specification of procedure saa7146_i2c_status [2019-10-13 20:21:40,432 INFO L130 BoogieDeclarations]: Found specification of procedure saa7146_i2c_msg_prepare [2019-10-13 20:21:40,432 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-13 20:21:40,432 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2019-10-13 20:21:40,433 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-13 20:21:40,433 INFO L130 BoogieDeclarations]: Found specification of procedure saa7146_i2c_msg_cleanup [2019-10-13 20:21:40,433 INFO L130 BoogieDeclarations]: Found specification of procedure saa7146_i2c_reset [2019-10-13 20:21:40,433 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-13 20:21:40,433 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-13 20:21:40,434 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-13 20:21:40,434 INFO L130 BoogieDeclarations]: Found specification of procedure saa7146_i2c_writeout [2019-10-13 20:21:40,434 INFO L130 BoogieDeclarations]: Found specification of procedure saa7146_i2c_transfer [2019-10-13 20:21:40,434 INFO L130 BoogieDeclarations]: Found specification of procedure saa7146_i2c_xfer [2019-10-13 20:21:40,435 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2019-10-13 20:21:40,435 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize [2019-10-13 20:21:40,435 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_handler_precall [2019-10-13 20:21:40,435 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-13 20:21:40,436 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-13 20:21:40,436 INFO L130 BoogieDeclarations]: Found specification of procedure sprintf [2019-10-13 20:21:40,436 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2019-10-13 20:21:40,437 INFO L130 BoogieDeclarations]: Found specification of procedure arch_local_save_flags [2019-10-13 20:21:40,443 INFO L130 BoogieDeclarations]: Found specification of procedure arch_irqs_disabled_flags [2019-10-13 20:21:40,443 INFO L130 BoogieDeclarations]: Found specification of procedure __mutex_init [2019-10-13 20:21:40,443 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_trylock_26 [2019-10-13 20:21:40,443 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_24 [2019-10-13 20:21:40,444 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_27 [2019-10-13 20:21:40,444 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_29 [2019-10-13 20:21:40,444 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_23 [2019-10-13 20:21:40,444 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_25 [2019-10-13 20:21:40,449 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_28 [2019-10-13 20:21:40,449 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2019-10-13 20:21:40,449 INFO L130 BoogieDeclarations]: Found specification of procedure __init_waitqueue_head [2019-10-13 20:21:40,449 INFO L130 BoogieDeclarations]: Found specification of procedure __wake_up [2019-10-13 20:21:40,450 INFO L130 BoogieDeclarations]: Found specification of procedure usecs_to_jiffies [2019-10-13 20:21:40,450 INFO L130 BoogieDeclarations]: Found specification of procedure ioremap_nocache [2019-10-13 20:21:40,450 INFO L130 BoogieDeclarations]: Found specification of procedure ioremap [2019-10-13 20:21:40,451 INFO L130 BoogieDeclarations]: Found specification of procedure iounmap [2019-10-13 20:21:40,451 INFO L130 BoogieDeclarations]: Found specification of procedure vmalloc_32 [2019-10-13 20:21:40,451 INFO L130 BoogieDeclarations]: Found specification of procedure vfree [2019-10-13 20:21:40,451 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2019-10-13 20:21:40,452 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assume [2019-10-13 20:21:40,452 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-10-13 20:21:40,452 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2019-10-13 20:21:40,452 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2019-10-13 20:21:40,452 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-13 20:21:40,453 INFO L130 BoogieDeclarations]: Found specification of procedure __kmalloc [2019-10-13 20:21:40,453 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2019-10-13 20:21:40,453 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc_array [2019-10-13 20:21:40,453 INFO L130 BoogieDeclarations]: Found specification of procedure kcalloc [2019-10-13 20:21:40,453 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2019-10-13 20:21:40,454 INFO L130 BoogieDeclarations]: Found specification of procedure pci_enable_device [2019-10-13 20:21:40,454 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_device [2019-10-13 20:21:40,454 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_master [2019-10-13 20:21:40,454 INFO L130 BoogieDeclarations]: Found specification of procedure pci_request_region [2019-10-13 20:21:40,454 INFO L130 BoogieDeclarations]: Found specification of procedure pci_release_region [2019-10-13 20:21:40,454 INFO L130 BoogieDeclarations]: Found specification of procedure __pci_register_driver [2019-10-13 20:21:40,455 INFO L130 BoogieDeclarations]: Found specification of procedure pci_unregister_driver [2019-10-13 20:21:40,455 INFO L130 BoogieDeclarations]: Found specification of procedure PageHighMem [2019-10-13 20:21:40,455 INFO L130 BoogieDeclarations]: Found specification of procedure vmalloc_to_page [2019-10-13 20:21:40,455 INFO L130 BoogieDeclarations]: Found specification of procedure lowmem_page_address [2019-10-13 20:21:40,455 INFO L130 BoogieDeclarations]: Found specification of procedure sg_assign_page [2019-10-13 20:21:40,455 INFO L130 BoogieDeclarations]: Found specification of procedure sg_set_page [2019-10-13 20:21:40,455 INFO L130 BoogieDeclarations]: Found specification of procedure sg_page [2019-10-13 20:21:40,455 INFO L130 BoogieDeclarations]: Found specification of procedure sg_virt [2019-10-13 20:21:40,456 INFO L130 BoogieDeclarations]: Found specification of procedure sg_next [2019-10-13 20:21:40,456 INFO L130 BoogieDeclarations]: Found specification of procedure sg_init_table [2019-10-13 20:21:40,456 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2019-10-13 20:21:40,456 INFO L130 BoogieDeclarations]: Found specification of procedure is_device_dma_capable [2019-10-13 20:21:40,456 INFO L130 BoogieDeclarations]: Found specification of procedure kmemcheck_mark_initialized [2019-10-13 20:21:40,457 INFO L130 BoogieDeclarations]: Found specification of procedure debug_dma_map_sg [2019-10-13 20:21:40,457 INFO L130 BoogieDeclarations]: Found specification of procedure debug_dma_unmap_sg [2019-10-13 20:21:40,457 INFO L130 BoogieDeclarations]: Found specification of procedure debug_dma_alloc_coherent [2019-10-13 20:21:40,457 INFO L130 BoogieDeclarations]: Found specification of procedure debug_dma_free_coherent [2019-10-13 20:21:40,457 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2019-10-13 20:21:40,458 INFO L130 BoogieDeclarations]: Found specification of procedure dma_map_sg_attrs [2019-10-13 20:21:40,458 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~int~X~int~X~$Pointer$~TO~int [2019-10-13 20:21:40,458 INFO L130 BoogieDeclarations]: Found specification of procedure dma_unmap_sg_attrs [2019-10-13 20:21:40,458 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~int~X~int~X~$Pointer$~TO~VOID [2019-10-13 20:21:40,458 INFO L130 BoogieDeclarations]: Found specification of procedure dma_alloc_coherent_mask [2019-10-13 20:21:40,458 INFO L130 BoogieDeclarations]: Found specification of procedure dma_alloc_coherent_gfp_flags [2019-10-13 20:21:40,458 INFO L130 BoogieDeclarations]: Found specification of procedure dma_alloc_attrs [2019-10-13 20:21:40,459 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~int~X~$Pointer$~X~~gfp_t~0~X~$Pointer$~TO~$Pointer$ [2019-10-13 20:21:40,459 INFO L130 BoogieDeclarations]: Found specification of procedure dma_free_attrs [2019-10-13 20:21:40,459 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~int~X~$Pointer$~X~~dma_addr_t~0~X~$Pointer$~TO~VOID [2019-10-13 20:21:40,459 INFO L130 BoogieDeclarations]: Found specification of procedure pci_alloc_consistent [2019-10-13 20:21:40,459 INFO L130 BoogieDeclarations]: Found specification of procedure pci_free_consistent [2019-10-13 20:21:40,459 INFO L130 BoogieDeclarations]: Found specification of procedure pci_map_sg [2019-10-13 20:21:40,460 INFO L130 BoogieDeclarations]: Found specification of procedure pci_unmap_sg [2019-10-13 20:21:40,460 INFO L130 BoogieDeclarations]: Found specification of procedure pci_get_drvdata [2019-10-13 20:21:40,460 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_drvdata [2019-10-13 20:21:40,460 INFO L130 BoogieDeclarations]: Found specification of procedure request_threaded_irq [2019-10-13 20:21:40,460 INFO L130 BoogieDeclarations]: Found specification of procedure request_irq [2019-10-13 20:21:40,460 INFO L130 BoogieDeclarations]: Found specification of procedure free_irq [2019-10-13 20:21:40,461 INFO L130 BoogieDeclarations]: Found specification of procedure saa7146_register_extension [2019-10-13 20:21:40,461 INFO L130 BoogieDeclarations]: Found specification of procedure saa7146_unregister_extension [2019-10-13 20:21:40,461 INFO L130 BoogieDeclarations]: Found specification of procedure saa7146_pgtable_alloc [2019-10-13 20:21:40,461 INFO L130 BoogieDeclarations]: Found specification of procedure saa7146_pgtable_free [2019-10-13 20:21:40,461 INFO L130 BoogieDeclarations]: Found specification of procedure saa7146_pgtable_build_single [2019-10-13 20:21:40,461 INFO L130 BoogieDeclarations]: Found specification of procedure saa7146_vmalloc_build_pgtable [2019-10-13 20:21:40,461 INFO L130 BoogieDeclarations]: Found specification of procedure saa7146_vfree_destroy_pgtable [2019-10-13 20:21:40,462 INFO L130 BoogieDeclarations]: Found specification of procedure saa7146_setgpio [2019-10-13 20:21:40,462 INFO L130 BoogieDeclarations]: Found specification of procedure saa7146_wait_for_debi_done [2019-10-13 20:21:40,462 INFO L130 BoogieDeclarations]: Found specification of procedure saa7146_wait_for_debi_done_sleep [2019-10-13 20:21:40,462 INFO L130 BoogieDeclarations]: Found specification of procedure saa7146_wait_for_debi_done_busyloop [2019-10-13 20:21:40,462 INFO L130 BoogieDeclarations]: Found specification of procedure vmalloc_to_sg [2019-10-13 20:21:40,462 INFO L130 BoogieDeclarations]: Found specification of procedure interrupt_hw [2019-10-13 20:21:40,462 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~VOID [2019-10-13 20:21:40,463 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~int~TO~VOID [2019-10-13 20:21:40,463 INFO L130 BoogieDeclarations]: Found specification of procedure saa7146_init_one [2019-10-13 20:21:40,463 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2019-10-13 20:21:40,463 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2019-10-13 20:21:40,463 INFO L130 BoogieDeclarations]: Found specification of procedure saa7146_remove_one [2019-10-13 20:21:40,463 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2019-10-13 20:21:40,463 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_killable_i2c_lock_of_saa7146_dev [2019-10-13 20:21:40,464 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_i2c_lock_of_saa7146_dev [2019-10-13 20:21:40,464 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_trylock_i2c_lock_of_saa7146_dev [2019-10-13 20:21:40,464 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_dec_and_mutex_lock_i2c_lock_of_saa7146_dev [2019-10-13 20:21:40,464 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_is_locked_i2c_lock_of_saa7146_dev [2019-10-13 20:21:40,464 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_interruptible_lock [2019-10-13 20:21:40,464 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_killable_lock [2019-10-13 20:21:40,465 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_trylock_lock [2019-10-13 20:21:40,465 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_dec_and_mutex_lock_lock [2019-10-13 20:21:40,465 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_is_locked_lock [2019-10-13 20:21:40,465 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_interruptible_lock_of_v4l2_ctrl_handler [2019-10-13 20:21:40,465 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_killable_lock_of_v4l2_ctrl_handler [2019-10-13 20:21:40,465 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_trylock_lock_of_v4l2_ctrl_handler [2019-10-13 20:21:40,465 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_dec_and_mutex_lock_lock_of_v4l2_ctrl_handler [2019-10-13 20:21:40,466 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_is_locked_lock_of_v4l2_ctrl_handler [2019-10-13 20:21:40,466 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_interruptible_mutex_of_device [2019-10-13 20:21:40,466 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_killable_mutex_of_device [2019-10-13 20:21:40,466 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_dec_and_mutex_lock_mutex_of_device [2019-10-13 20:21:40,466 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_is_locked_mutex_of_device [2019-10-13 20:21:40,466 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_interruptible_vb_lock_of_videobuf_queue [2019-10-13 20:21:40,466 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_killable_vb_lock_of_videobuf_queue [2019-10-13 20:21:40,466 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_trylock_vb_lock_of_videobuf_queue [2019-10-13 20:21:40,467 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_dec_and_mutex_lock_vb_lock_of_videobuf_queue [2019-10-13 20:21:40,467 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_is_locked_vb_lock_of_videobuf_queue [2019-10-13 20:21:40,467 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_ulong [2019-10-13 20:21:40,467 INFO L130 BoogieDeclarations]: Found specification of procedure external_alloc [2019-10-13 20:21:40,467 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_long [2019-10-13 20:21:40,467 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_pointer [2019-10-13 20:21:40,467 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-13 20:21:40,468 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-13 20:21:40,468 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2019-10-13 20:21:40,468 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-13 20:21:51,070 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-13 20:21:51,070 INFO L284 CfgBuilder]: Removed 0 assume(true) statements. [2019-10-13 20:21:51,073 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 08:21:51 BoogieIcfgContainer [2019-10-13 20:21:51,074 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-13 20:21:51,075 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-13 20:21:51,076 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-13 20:21:51,079 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-13 20:21:51,080 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 08:21:37" (1/3) ... [2019-10-13 20:21:51,081 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@17e54e35 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 08:21:51, skipping insertion in model container [2019-10-13 20:21:51,081 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 08:21:39" (2/3) ... [2019-10-13 20:21:51,083 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@17e54e35 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 08:21:51, skipping insertion in model container [2019-10-13 20:21:51,084 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 08:21:51" (3/3) ... [2019-10-13 20:21:51,085 INFO L109 eAbstractionObserver]: Analyzing ICFG linux-3.8-rc1-32_7a-drivers--media--common--saa7146--saa7146.ko-ldv_main0.cil.out.i [2019-10-13 20:21:51,095 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-13 20:21:51,112 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-13 20:21:51,129 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-13 20:21:51,189 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-13 20:21:51,189 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-13 20:21:51,190 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-13 20:21:51,190 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-13 20:21:51,190 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-13 20:21:51,190 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-13 20:21:51,190 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-13 20:21:51,191 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-13 20:21:51,263 INFO L276 IsEmpty]: Start isEmpty. Operand 1315 states. [2019-10-13 20:21:51,270 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2019-10-13 20:21:51,271 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 20:21:51,272 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 20:21:51,276 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 20:21:51,285 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 20:21:51,286 INFO L82 PathProgramCache]: Analyzing trace with hash 1245454512, now seen corresponding path program 1 times [2019-10-13 20:21:51,300 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 20:21:51,301 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [674575994] [2019-10-13 20:21:51,301 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 20:21:51,302 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 20:21:51,302 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 20:21:51,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 20:21:52,219 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-13 20:21:52,219 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [674575994] [2019-10-13 20:21:52,222 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 20:21:52,222 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-13 20:21:52,222 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [642915867] [2019-10-13 20:21:52,227 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-13 20:21:52,229 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 20:21:52,243 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-13 20:21:52,243 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 20:21:52,246 INFO L87 Difference]: Start difference. First operand 1315 states. Second operand 3 states. [2019-10-13 20:21:55,040 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 20:21:55,040 INFO L93 Difference]: Finished difference Result 1309 states and 1814 transitions. [2019-10-13 20:21:55,041 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-13 20:21:55,042 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 16 [2019-10-13 20:21:55,043 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 20:21:55,077 INFO L225 Difference]: With dead ends: 1309 [2019-10-13 20:21:55,077 INFO L226 Difference]: Without dead ends: 858 [2019-10-13 20:21:55,088 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 20:21:55,105 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 858 states. [2019-10-13 20:21:55,214 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 858 to 855. [2019-10-13 20:21:55,216 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 855 states. [2019-10-13 20:21:55,222 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 855 states to 855 states and 1165 transitions. [2019-10-13 20:21:55,225 INFO L78 Accepts]: Start accepts. Automaton has 855 states and 1165 transitions. Word has length 16 [2019-10-13 20:21:55,225 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 20:21:55,225 INFO L462 AbstractCegarLoop]: Abstraction has 855 states and 1165 transitions. [2019-10-13 20:21:55,225 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-13 20:21:55,225 INFO L276 IsEmpty]: Start isEmpty. Operand 855 states and 1165 transitions. [2019-10-13 20:21:55,227 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2019-10-13 20:21:55,227 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 20:21:55,227 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 20:21:55,228 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 20:21:55,228 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 20:21:55,228 INFO L82 PathProgramCache]: Analyzing trace with hash -46338647, now seen corresponding path program 1 times [2019-10-13 20:21:55,228 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 20:21:55,228 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1905272011] [2019-10-13 20:21:55,229 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 20:21:55,229 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 20:21:55,229 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 20:21:55,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 20:21:55,443 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-13 20:21:55,444 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1905272011] [2019-10-13 20:21:55,444 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 20:21:55,444 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-13 20:21:55,445 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [772824732] [2019-10-13 20:21:55,449 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-13 20:21:55,450 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 20:21:55,450 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-13 20:21:55,450 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 20:21:55,450 INFO L87 Difference]: Start difference. First operand 855 states and 1165 transitions. Second operand 3 states. [2019-10-13 20:21:58,053 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 20:21:58,054 INFO L93 Difference]: Finished difference Result 857 states and 1166 transitions. [2019-10-13 20:21:58,054 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-13 20:21:58,054 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 17 [2019-10-13 20:21:58,055 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 20:21:58,064 INFO L225 Difference]: With dead ends: 857 [2019-10-13 20:21:58,064 INFO L226 Difference]: Without dead ends: 854 [2019-10-13 20:21:58,066 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 20:21:58,067 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 854 states. [2019-10-13 20:21:58,148 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 854 to 854. [2019-10-13 20:21:58,148 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 854 states. [2019-10-13 20:21:58,156 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 854 states to 854 states and 1163 transitions. [2019-10-13 20:21:58,156 INFO L78 Accepts]: Start accepts. Automaton has 854 states and 1163 transitions. Word has length 17 [2019-10-13 20:21:58,156 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 20:21:58,156 INFO L462 AbstractCegarLoop]: Abstraction has 854 states and 1163 transitions. [2019-10-13 20:21:58,157 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-13 20:21:58,157 INFO L276 IsEmpty]: Start isEmpty. Operand 854 states and 1163 transitions. [2019-10-13 20:21:58,157 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2019-10-13 20:21:58,157 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 20:21:58,157 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 20:21:58,158 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 20:21:58,158 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 20:21:58,158 INFO L82 PathProgramCache]: Analyzing trace with hash -1437216045, now seen corresponding path program 1 times [2019-10-13 20:21:58,158 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 20:21:58,158 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1661658260] [2019-10-13 20:21:58,158 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 20:21:58,159 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 20:21:58,159 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 20:21:58,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 20:21:58,350 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-13 20:21:58,350 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1661658260] [2019-10-13 20:21:58,351 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 20:21:58,351 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-13 20:21:58,351 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1373706071] [2019-10-13 20:21:58,351 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-13 20:21:58,352 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 20:21:58,352 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-13 20:21:58,352 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 20:21:58,352 INFO L87 Difference]: Start difference. First operand 854 states and 1163 transitions. Second operand 3 states. [2019-10-13 20:22:01,038 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 20:22:01,039 INFO L93 Difference]: Finished difference Result 856 states and 1164 transitions. [2019-10-13 20:22:01,039 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-13 20:22:01,039 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 18 [2019-10-13 20:22:01,040 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 20:22:01,047 INFO L225 Difference]: With dead ends: 856 [2019-10-13 20:22:01,047 INFO L226 Difference]: Without dead ends: 853 [2019-10-13 20:22:01,048 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 20:22:01,049 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 853 states. [2019-10-13 20:22:01,090 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 853 to 853. [2019-10-13 20:22:01,093 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 853 states. [2019-10-13 20:22:01,098 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 853 states to 853 states and 1161 transitions. [2019-10-13 20:22:01,099 INFO L78 Accepts]: Start accepts. Automaton has 853 states and 1161 transitions. Word has length 18 [2019-10-13 20:22:01,099 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 20:22:01,099 INFO L462 AbstractCegarLoop]: Abstraction has 853 states and 1161 transitions. [2019-10-13 20:22:01,099 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-13 20:22:01,099 INFO L276 IsEmpty]: Start isEmpty. Operand 853 states and 1161 transitions. [2019-10-13 20:22:01,100 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2019-10-13 20:22:01,100 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 20:22:01,101 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 20:22:01,101 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 20:22:01,101 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 20:22:01,101 INFO L82 PathProgramCache]: Analyzing trace with hash -1604737556, now seen corresponding path program 1 times [2019-10-13 20:22:01,101 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 20:22:01,102 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2091598201] [2019-10-13 20:22:01,102 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 20:22:01,102 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 20:22:01,102 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 20:22:01,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 20:22:01,323 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-13 20:22:01,323 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2091598201] [2019-10-13 20:22:01,324 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 20:22:01,324 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-13 20:22:01,324 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [375940590] [2019-10-13 20:22:01,325 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-13 20:22:01,325 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 20:22:01,326 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-13 20:22:01,326 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 20:22:01,326 INFO L87 Difference]: Start difference. First operand 853 states and 1161 transitions. Second operand 3 states. [2019-10-13 20:22:03,905 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 20:22:03,906 INFO L93 Difference]: Finished difference Result 855 states and 1162 transitions. [2019-10-13 20:22:03,906 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-13 20:22:03,906 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 19 [2019-10-13 20:22:03,907 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 20:22:03,912 INFO L225 Difference]: With dead ends: 855 [2019-10-13 20:22:03,912 INFO L226 Difference]: Without dead ends: 852 [2019-10-13 20:22:03,913 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 20:22:03,914 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 852 states. [2019-10-13 20:22:03,945 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 852 to 852. [2019-10-13 20:22:03,945 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 852 states. [2019-10-13 20:22:03,951 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 852 states to 852 states and 1159 transitions. [2019-10-13 20:22:03,951 INFO L78 Accepts]: Start accepts. Automaton has 852 states and 1159 transitions. Word has length 19 [2019-10-13 20:22:03,951 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 20:22:03,951 INFO L462 AbstractCegarLoop]: Abstraction has 852 states and 1159 transitions. [2019-10-13 20:22:03,952 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-13 20:22:03,952 INFO L276 IsEmpty]: Start isEmpty. Operand 852 states and 1159 transitions. [2019-10-13 20:22:03,952 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2019-10-13 20:22:03,952 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 20:22:03,953 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 20:22:03,953 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 20:22:03,955 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 20:22:03,955 INFO L82 PathProgramCache]: Analyzing trace with hash 1792035062, now seen corresponding path program 1 times [2019-10-13 20:22:03,955 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 20:22:03,956 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [93290561] [2019-10-13 20:22:03,956 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 20:22:03,956 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 20:22:03,956 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 20:22:04,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 20:22:04,165 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-13 20:22:04,166 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [93290561] [2019-10-13 20:22:04,166 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 20:22:04,166 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-13 20:22:04,166 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1299830170] [2019-10-13 20:22:04,167 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-13 20:22:04,167 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 20:22:04,167 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-13 20:22:04,167 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 20:22:04,167 INFO L87 Difference]: Start difference. First operand 852 states and 1159 transitions. Second operand 3 states. [2019-10-13 20:22:06,607 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 20:22:06,607 INFO L93 Difference]: Finished difference Result 854 states and 1160 transitions. [2019-10-13 20:22:06,863 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-13 20:22:06,864 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 20 [2019-10-13 20:22:06,864 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 20:22:06,868 INFO L225 Difference]: With dead ends: 854 [2019-10-13 20:22:06,869 INFO L226 Difference]: Without dead ends: 845 [2019-10-13 20:22:06,869 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 20:22:06,871 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 845 states. [2019-10-13 20:22:06,902 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 845 to 845. [2019-10-13 20:22:06,902 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 845 states. [2019-10-13 20:22:06,907 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 845 states to 845 states and 1150 transitions. [2019-10-13 20:22:06,907 INFO L78 Accepts]: Start accepts. Automaton has 845 states and 1150 transitions. Word has length 20 [2019-10-13 20:22:06,908 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 20:22:06,908 INFO L462 AbstractCegarLoop]: Abstraction has 845 states and 1150 transitions. [2019-10-13 20:22:06,908 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-13 20:22:06,908 INFO L276 IsEmpty]: Start isEmpty. Operand 845 states and 1150 transitions. [2019-10-13 20:22:06,911 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2019-10-13 20:22:06,911 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 20:22:06,911 INFO L380 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 20:22:06,911 INFO L410 AbstractCegarLoop]: === Iteration 6 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 20:22:06,911 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 20:22:06,912 INFO L82 PathProgramCache]: Analyzing trace with hash 1605539161, now seen corresponding path program 1 times [2019-10-13 20:22:06,912 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 20:22:06,912 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [560107434] [2019-10-13 20:22:06,912 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 20:22:06,912 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 20:22:06,913 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 20:22:06,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 20:22:07,216 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-13 20:22:07,217 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [560107434] [2019-10-13 20:22:07,218 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 20:22:07,218 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-10-13 20:22:07,219 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1377353135] [2019-10-13 20:22:07,219 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-10-13 20:22:07,220 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 20:22:07,220 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-10-13 20:22:07,220 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-10-13 20:22:07,220 INFO L87 Difference]: Start difference. First operand 845 states and 1150 transitions. Second operand 7 states. [2019-10-13 20:22:07,333 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 20:22:07,334 INFO L93 Difference]: Finished difference Result 1622 states and 2220 transitions. [2019-10-13 20:22:07,334 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-10-13 20:22:07,335 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 72 [2019-10-13 20:22:07,336 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 20:22:07,342 INFO L225 Difference]: With dead ends: 1622 [2019-10-13 20:22:07,342 INFO L226 Difference]: Without dead ends: 787 [2019-10-13 20:22:07,347 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-10-13 20:22:07,348 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 787 states. [2019-10-13 20:22:07,391 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 787 to 785. [2019-10-13 20:22:07,391 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 785 states. [2019-10-13 20:22:07,396 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 785 states to 785 states and 1075 transitions. [2019-10-13 20:22:07,397 INFO L78 Accepts]: Start accepts. Automaton has 785 states and 1075 transitions. Word has length 72 [2019-10-13 20:22:07,400 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 20:22:07,401 INFO L462 AbstractCegarLoop]: Abstraction has 785 states and 1075 transitions. [2019-10-13 20:22:07,401 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-10-13 20:22:07,401 INFO L276 IsEmpty]: Start isEmpty. Operand 785 states and 1075 transitions. [2019-10-13 20:22:07,408 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2019-10-13 20:22:07,408 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 20:22:07,408 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 20:22:07,408 INFO L410 AbstractCegarLoop]: === Iteration 7 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 20:22:07,408 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 20:22:07,409 INFO L82 PathProgramCache]: Analyzing trace with hash -1223677315, now seen corresponding path program 1 times [2019-10-13 20:22:07,409 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 20:22:07,409 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1551336773] [2019-10-13 20:22:07,409 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 20:22:07,409 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 20:22:07,410 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 20:22:07,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 20:22:07,750 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-13 20:22:07,750 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1551336773] [2019-10-13 20:22:07,750 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 20:22:07,750 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-10-13 20:22:07,751 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [862159104] [2019-10-13 20:22:07,751 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-10-13 20:22:07,751 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 20:22:07,752 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-10-13 20:22:07,752 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-10-13 20:22:07,752 INFO L87 Difference]: Start difference. First operand 785 states and 1075 transitions. Second operand 4 states. [2019-10-13 20:22:07,822 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 20:22:07,822 INFO L93 Difference]: Finished difference Result 1588 states and 2184 transitions. [2019-10-13 20:22:07,822 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-10-13 20:22:07,823 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 78 [2019-10-13 20:22:07,823 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 20:22:07,828 INFO L225 Difference]: With dead ends: 1588 [2019-10-13 20:22:07,828 INFO L226 Difference]: Without dead ends: 813 [2019-10-13 20:22:07,832 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-10-13 20:22:07,834 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 813 states. [2019-10-13 20:22:07,868 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 813 to 789. [2019-10-13 20:22:07,869 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 789 states. [2019-10-13 20:22:07,874 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 789 states to 789 states and 1081 transitions. [2019-10-13 20:22:07,874 INFO L78 Accepts]: Start accepts. Automaton has 789 states and 1081 transitions. Word has length 78 [2019-10-13 20:22:07,875 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 20:22:07,875 INFO L462 AbstractCegarLoop]: Abstraction has 789 states and 1081 transitions. [2019-10-13 20:22:07,875 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-10-13 20:22:07,875 INFO L276 IsEmpty]: Start isEmpty. Operand 789 states and 1081 transitions. [2019-10-13 20:22:07,877 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2019-10-13 20:22:07,877 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 20:22:07,877 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 20:22:07,877 INFO L410 AbstractCegarLoop]: === Iteration 8 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 20:22:07,877 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 20:22:07,878 INFO L82 PathProgramCache]: Analyzing trace with hash -1064377439, now seen corresponding path program 1 times [2019-10-13 20:22:07,878 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 20:22:07,878 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [391443371] [2019-10-13 20:22:07,878 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 20:22:07,878 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 20:22:07,879 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 20:22:08,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 20:22:08,343 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-13 20:22:08,344 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [391443371] [2019-10-13 20:22:08,344 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2121841214] [2019-10-13 20:22:08,344 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 20:22:09,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 20:22:09,956 INFO L256 TraceCheckSpWp]: Trace formula consists of 3280 conjuncts, 6 conjunts are in the unsatisfiable core [2019-10-13 20:22:09,971 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-13 20:22:10,065 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-13 20:22:10,066 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-13 20:22:10,234 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-13 20:22:10,234 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2019-10-13 20:22:10,234 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [8, 6] total 11 [2019-10-13 20:22:10,235 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [630412354] [2019-10-13 20:22:10,236 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-10-13 20:22:10,237 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 20:22:10,237 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-10-13 20:22:10,238 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=79, Unknown=0, NotChecked=0, Total=110 [2019-10-13 20:22:10,238 INFO L87 Difference]: Start difference. First operand 789 states and 1081 transitions. Second operand 6 states. [2019-10-13 20:22:10,457 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 20:22:10,458 INFO L93 Difference]: Finished difference Result 1873 states and 2668 transitions. [2019-10-13 20:22:10,458 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-10-13 20:22:10,458 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 80 [2019-10-13 20:22:10,459 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 20:22:10,466 INFO L225 Difference]: With dead ends: 1873 [2019-10-13 20:22:10,467 INFO L226 Difference]: Without dead ends: 1094 [2019-10-13 20:22:10,471 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 168 GetRequests, 154 SyntacticMatches, 4 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=97, Unknown=0, NotChecked=0, Total=132 [2019-10-13 20:22:10,472 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1094 states. [2019-10-13 20:22:10,524 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1094 to 815. [2019-10-13 20:22:10,525 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 815 states. [2019-10-13 20:22:10,530 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 815 states to 815 states and 1119 transitions. [2019-10-13 20:22:10,530 INFO L78 Accepts]: Start accepts. Automaton has 815 states and 1119 transitions. Word has length 80 [2019-10-13 20:22:10,531 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 20:22:10,531 INFO L462 AbstractCegarLoop]: Abstraction has 815 states and 1119 transitions. [2019-10-13 20:22:10,531 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-10-13 20:22:10,531 INFO L276 IsEmpty]: Start isEmpty. Operand 815 states and 1119 transitions. [2019-10-13 20:22:10,532 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2019-10-13 20:22:10,533 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 20:22:10,533 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 20:22:10,733 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-13 20:22:10,734 INFO L410 AbstractCegarLoop]: === Iteration 9 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 20:22:10,735 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 20:22:10,735 INFO L82 PathProgramCache]: Analyzing trace with hash 2019498801, now seen corresponding path program 1 times [2019-10-13 20:22:10,735 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 20:22:10,736 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [897328140] [2019-10-13 20:22:10,736 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 20:22:10,736 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 20:22:10,736 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 20:22:11,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 20:22:11,624 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-10-13 20:22:11,624 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [897328140] [2019-10-13 20:22:11,624 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 20:22:11,625 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-13 20:22:11,625 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1505341187] [2019-10-13 20:22:11,625 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-13 20:22:11,625 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 20:22:11,626 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-13 20:22:11,626 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 20:22:11,626 INFO L87 Difference]: Start difference. First operand 815 states and 1119 transitions. Second operand 3 states.