/usr/bin/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 --traceabstraction.trace.refinement.strategy SIFA_TAIPAN --sifa.abstract.domain CompoundDomain --rcfgbuilder.size.of.a.code.block LoopFreeBlock --sifa.call.summarizer TopInputCallSummarizer --sifa.fluid SizeLimitFluid --sifa.simplification.technique SIMPLIFY_QUICK -i ../../../trunk/examples/svcomp/ldv-linux-3.16-rc1/43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-drivers--usb--misc--usbtest.ko-entry_point.cil.out.i -------------------------------------------------------------------------------- This is Ultimate 0.1.24-fb55353 [2019-11-07 02:52:50,167 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-07 02:52:50,170 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-07 02:52:50,185 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-07 02:52:50,186 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-07 02:52:50,187 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-07 02:52:50,190 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-07 02:52:50,194 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-07 02:52:50,202 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-07 02:52:50,204 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-07 02:52:50,205 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-07 02:52:50,208 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-07 02:52:50,208 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-07 02:52:50,210 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-07 02:52:50,211 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-07 02:52:50,213 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-07 02:52:50,214 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-07 02:52:50,214 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-07 02:52:50,217 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-07 02:52:50,221 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-07 02:52:50,224 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-07 02:52:50,227 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-07 02:52:50,229 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-07 02:52:50,233 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-07 02:52:50,234 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-07 02:52:50,236 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-07 02:52:50,236 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-07 02:52:50,237 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-07 02:52:50,237 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-07 02:52:50,238 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-07 02:52:50,238 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-07 02:52:50,239 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-07 02:52:50,244 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-07 02:52:50,245 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-07 02:52:50,247 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-07 02:52:50,248 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-07 02:52:50,249 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-07 02:52:50,249 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-07 02:52:50,249 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-07 02:52:50,250 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-07 02:52:50,251 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-07 02:52:50,251 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 [2019-11-07 02:52:50,271 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-07 02:52:50,271 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-07 02:52:50,272 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-07 02:52:50,273 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-07 02:52:50,273 INFO L138 SettingsManager]: * Use SBE=true [2019-11-07 02:52:50,273 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-07 02:52:50,273 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-07 02:52:50,274 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-07 02:52:50,274 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-07 02:52:50,274 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-07 02:52:50,274 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-07 02:52:50,274 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-07 02:52:50,275 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-07 02:52:50,275 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-07 02:52:50,275 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-07 02:52:50,275 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-07 02:52:50,275 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-07 02:52:50,276 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-07 02:52:50,276 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-07 02:52:50,276 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-07 02:52:50,276 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-07 02:52:50,276 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-07 02:52:50,277 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-07 02:52:50,277 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-07 02:52:50,277 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-07 02:52:50,277 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-07 02:52:50,278 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-07 02:52:50,278 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-07 02:52:50,278 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> SIFA_TAIPAN Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Abstract Domain -> CompoundDomain Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> LoopFreeBlock Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Call Summarizer -> TopInputCallSummarizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Fluid -> SizeLimitFluid Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Simplification Technique -> SIMPLIFY_QUICK [2019-11-07 02:52:50,606 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-07 02:52:50,626 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-07 02:52:50,629 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-07 02:52:50,630 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-07 02:52:50,631 INFO L275 PluginConnector]: CDTParser initialized [2019-11-07 02:52:50,631 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-linux-3.16-rc1/43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-drivers--usb--misc--usbtest.ko-entry_point.cil.out.i [2019-11-07 02:52:50,714 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/898aa4a4c/0b61b00be46048e9bc1dd858f2bd6813/FLAG6fad875ea [2019-11-07 02:52:51,550 INFO L306 CDTParser]: Found 1 translation units. [2019-11-07 02:52:51,550 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ldv-linux-3.16-rc1/43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-drivers--usb--misc--usbtest.ko-entry_point.cil.out.i [2019-11-07 02:52:51,602 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/898aa4a4c/0b61b00be46048e9bc1dd858f2bd6813/FLAG6fad875ea [2019-11-07 02:52:51,636 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/898aa4a4c/0b61b00be46048e9bc1dd858f2bd6813 [2019-11-07 02:52:51,647 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-07 02:52:51,648 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-11-07 02:52:51,649 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-07 02:52:51,649 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-07 02:52:51,653 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-07 02:52:51,654 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 02:52:51" (1/1) ... [2019-11-07 02:52:51,657 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@180a2c95 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:52:51, skipping insertion in model container [2019-11-07 02:52:51,657 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 02:52:51" (1/1) ... [2019-11-07 02:52:51,665 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-07 02:52:51,791 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-07 02:52:52,425 WARN L1068 CHandler]: Detected problem Invalid redeclaration of the name show at C: (*show)(struct kobject___0 * , struct attribute___0 * , char * ) [3517] [2019-11-07 02:52:52,428 WARN L1068 CHandler]: Detected problem Invalid redeclaration of the name store at C: (*store)(struct kobject___0 * , struct attribute___0 * , char const * , size_t ) [3518-3519] [2019-11-07 02:52:54,004 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-07 02:52:54,051 INFO L188 MainTranslator]: Completed pre-run [2019-11-07 02:52:54,149 WARN L1068 CHandler]: Detected problem Invalid redeclaration of the name show at C: (*show)(struct kobject___0 * , struct attribute___0 * , char * ) [3517] [2019-11-07 02:52:54,150 WARN L1068 CHandler]: Detected problem Invalid redeclaration of the name store at C: (*store)(struct kobject___0 * , struct attribute___0 * , char const * , size_t ) [3518-3519] [2019-11-07 02:52:54,399 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-07 02:52:54,728 INFO L192 MainTranslator]: Completed translation [2019-11-07 02:52:54,728 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:52:54 WrapperNode [2019-11-07 02:52:54,729 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-07 02:52:54,730 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-07 02:52:54,730 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-07 02:52:54,730 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-07 02:52:54,754 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:52:54" (1/1) ... [2019-11-07 02:52:54,755 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:52:54" (1/1) ... [2019-11-07 02:52:54,863 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:52:54" (1/1) ... [2019-11-07 02:52:54,864 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:52:54" (1/1) ... [2019-11-07 02:52:55,056 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:52:54" (1/1) ... [2019-11-07 02:52:55,090 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:52:54" (1/1) ... [2019-11-07 02:52:55,124 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:52:54" (1/1) ... [2019-11-07 02:52:55,156 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-07 02:52:55,157 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-07 02:52:55,157 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-07 02:52:55,157 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-07 02:52:55,158 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:52:54" (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 [2019-11-07 02:52:55,236 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-11-07 02:52:55,237 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-07 02:52:55,237 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_set [2019-11-07 02:52:55,237 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_inc [2019-11-07 02:52:55,237 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_dec [2019-11-07 02:52:55,238 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_dec_and_test [2019-11-07 02:52:55,238 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2019-11-07 02:52:55,238 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_1 [2019-11-07 02:52:55,238 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_irq_4 [2019-11-07 02:52:55,238 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_5 [2019-11-07 02:52:55,239 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irq_7 [2019-11-07 02:52:55,239 INFO L138 BoogieDeclarations]: Found implementation of procedure init_completion [2019-11-07 02:52:55,239 INFO L138 BoogieDeclarations]: Found implementation of procedure __kmalloc [2019-11-07 02:52:55,239 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kmalloc_12 [2019-11-07 02:52:55,239 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc_array [2019-11-07 02:52:55,240 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kcalloc_14 [2019-11-07 02:52:55,240 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2019-11-07 02:52:55,240 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2019-11-07 02:52:55,240 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2019-11-07 02:52:55,241 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_ptr [2019-11-07 02:52:55,241 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_ulong [2019-11-07 02:52:55,241 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2019-11-07 02:52:55,241 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2019-11-07 02:52:55,241 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2019-11-07 02:52:55,241 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_trap [2019-11-07 02:52:55,242 INFO L138 BoogieDeclarations]: Found implementation of procedure lowmem_page_address [2019-11-07 02:52:55,242 INFO L138 BoogieDeclarations]: Found implementation of procedure sg_assign_page [2019-11-07 02:52:55,242 INFO L138 BoogieDeclarations]: Found implementation of procedure sg_set_page [2019-11-07 02:52:55,242 INFO L138 BoogieDeclarations]: Found implementation of procedure sg_page [2019-11-07 02:52:55,242 INFO L138 BoogieDeclarations]: Found implementation of procedure sg_set_buf [2019-11-07 02:52:55,242 INFO L138 BoogieDeclarations]: Found implementation of procedure sg_virt [2019-11-07 02:52:55,242 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_type [2019-11-07 02:52:55,243 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_dir_in [2019-11-07 02:52:55,243 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_maxp [2019-11-07 02:52:55,243 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_get_drvdata [2019-11-07 02:52:55,243 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_set_drvdata [2019-11-07 02:52:55,243 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_get_intfdata [2019-11-07 02:52:55,243 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_set_intfdata [2019-11-07 02:52:55,243 INFO L138 BoogieDeclarations]: Found implementation of procedure interface_to_usbdev [2019-11-07 02:52:55,244 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_fill_bulk_urb [2019-11-07 02:52:55,244 INFO L138 BoogieDeclarations]: Found implementation of procedure __create_pipe [2019-11-07 02:52:55,244 INFO L138 BoogieDeclarations]: Found implementation of procedure testdev_to_usbdev [2019-11-07 02:52:55,244 INFO L138 BoogieDeclarations]: Found implementation of procedure get_endpoints [2019-11-07 02:52:55,244 INFO L138 BoogieDeclarations]: Found implementation of procedure simple_callback [2019-11-07 02:52:55,244 INFO L138 BoogieDeclarations]: Found implementation of procedure usbtest_alloc_urb [2019-11-07 02:52:55,244 INFO L138 BoogieDeclarations]: Found implementation of procedure simple_alloc_urb [2019-11-07 02:52:55,245 INFO L138 BoogieDeclarations]: Found implementation of procedure simple_fill_buf [2019-11-07 02:52:55,245 INFO L138 BoogieDeclarations]: Found implementation of procedure buffer_offset [2019-11-07 02:52:55,245 INFO L138 BoogieDeclarations]: Found implementation of procedure check_guard_bytes [2019-11-07 02:52:55,245 INFO L138 BoogieDeclarations]: Found implementation of procedure simple_check_buf [2019-11-07 02:52:55,245 INFO L138 BoogieDeclarations]: Found implementation of procedure simple_free_urb [2019-11-07 02:52:55,245 INFO L138 BoogieDeclarations]: Found implementation of procedure simple_io [2019-11-07 02:52:55,245 INFO L138 BoogieDeclarations]: Found implementation of procedure free_sglist [2019-11-07 02:52:55,246 INFO L138 BoogieDeclarations]: Found implementation of procedure alloc_sglist [2019-11-07 02:52:55,246 INFO L138 BoogieDeclarations]: Found implementation of procedure perform_sglist [2019-11-07 02:52:55,246 INFO L138 BoogieDeclarations]: Found implementation of procedure get_altsetting [2019-11-07 02:52:55,246 INFO L138 BoogieDeclarations]: Found implementation of procedure set_altsetting [2019-11-07 02:52:55,246 INFO L138 BoogieDeclarations]: Found implementation of procedure is_good_config [2019-11-07 02:52:55,247 INFO L138 BoogieDeclarations]: Found implementation of procedure is_good_ext [2019-11-07 02:52:55,247 INFO L138 BoogieDeclarations]: Found implementation of procedure is_good_ss_cap [2019-11-07 02:52:55,247 INFO L138 BoogieDeclarations]: Found implementation of procedure is_good_con_id [2019-11-07 02:52:55,247 INFO L138 BoogieDeclarations]: Found implementation of procedure ch9_postconfig [2019-11-07 02:52:55,247 INFO L138 BoogieDeclarations]: Found implementation of procedure ctrl_complete [2019-11-07 02:52:55,247 INFO L138 BoogieDeclarations]: Found implementation of procedure test_ctrl_queue [2019-11-07 02:52:55,247 INFO L138 BoogieDeclarations]: Found implementation of procedure unlink1_callback [2019-11-07 02:52:55,248 INFO L138 BoogieDeclarations]: Found implementation of procedure unlink1 [2019-11-07 02:52:55,248 INFO L138 BoogieDeclarations]: Found implementation of procedure unlink_simple [2019-11-07 02:52:55,248 INFO L138 BoogieDeclarations]: Found implementation of procedure unlink_queued_callback [2019-11-07 02:52:55,248 INFO L138 BoogieDeclarations]: Found implementation of procedure unlink_queued [2019-11-07 02:52:55,248 INFO L138 BoogieDeclarations]: Found implementation of procedure verify_not_halted [2019-11-07 02:52:55,248 INFO L138 BoogieDeclarations]: Found implementation of procedure verify_halted [2019-11-07 02:52:55,249 INFO L138 BoogieDeclarations]: Found implementation of procedure test_halt [2019-11-07 02:52:55,249 INFO L138 BoogieDeclarations]: Found implementation of procedure halt_simple [2019-11-07 02:52:55,249 INFO L138 BoogieDeclarations]: Found implementation of procedure ctrl_out [2019-11-07 02:52:55,249 INFO L138 BoogieDeclarations]: Found implementation of procedure iso_callback [2019-11-07 02:52:55,249 INFO L138 BoogieDeclarations]: Found implementation of procedure iso_alloc_urb [2019-11-07 02:52:55,249 INFO L138 BoogieDeclarations]: Found implementation of procedure test_iso_queue [2019-11-07 02:52:55,250 INFO L138 BoogieDeclarations]: Found implementation of procedure test_unaligned_bulk [2019-11-07 02:52:55,250 INFO L138 BoogieDeclarations]: Found implementation of procedure usbtest_ioctl [2019-11-07 02:52:55,250 INFO L138 BoogieDeclarations]: Found implementation of procedure usbtest_probe [2019-11-07 02:52:55,250 INFO L138 BoogieDeclarations]: Found implementation of procedure usbtest_suspend [2019-11-07 02:52:55,250 INFO L138 BoogieDeclarations]: Found implementation of procedure usbtest_resume [2019-11-07 02:52:55,250 INFO L138 BoogieDeclarations]: Found implementation of procedure usbtest_disconnect [2019-11-07 02:52:55,250 INFO L138 BoogieDeclarations]: Found implementation of procedure usbtest_init [2019-11-07 02:52:55,251 INFO L138 BoogieDeclarations]: Found implementation of procedure usbtest_exit [2019-11-07 02:52:55,251 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_driver_1 [2019-11-07 02:52:55,251 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-11-07 02:52:55,251 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2019-11-07 02:52:55,251 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock_irq [2019-11-07 02:52:55,251 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2019-11-07 02:52:55,251 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irq [2019-11-07 02:52:55,252 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2019-11-07 02:52:55,252 INFO L138 BoogieDeclarations]: Found implementation of procedure kcalloc [2019-11-07 02:52:55,252 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kmem_cache_alloc_16 [2019-11-07 02:52:55,252 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2019-11-07 02:52:55,252 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_alloc_urb_19 [2019-11-07 02:52:55,252 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_alloc_coherent_20 [2019-11-07 02:52:55,252 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_submit_urb_21 [2019-11-07 02:52:55,253 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_submit_urb_22 [2019-11-07 02:52:55,253 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_submit_urb_23 [2019-11-07 02:52:55,253 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_submit_urb_24 [2019-11-07 02:52:55,253 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_submit_urb_25 [2019-11-07 02:52:55,253 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_alloc_coherent_26 [2019-11-07 02:52:55,253 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_alloc_urb_27 [2019-11-07 02:52:55,254 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_submit_urb_28 [2019-11-07 02:52:55,254 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_submit_urb_29 [2019-11-07 02:52:55,254 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_alloc_urb_30 [2019-11-07 02:52:55,254 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_alloc_coherent_31 [2019-11-07 02:52:55,254 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_submit_urb_32 [2019-11-07 02:52:55,254 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_register_driver_33 [2019-11-07 02:52:55,254 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_deregister_34 [2019-11-07 02:52:55,254 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags [2019-11-07 02:52:55,255 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags_and_return_some_page [2019-11-07 02:52:55,255 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_nonatomic [2019-11-07 02:52:55,255 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock [2019-11-07 02:52:55,255 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock [2019-11-07 02:52:55,255 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_trylock [2019-11-07 02:52:55,255 INFO L138 BoogieDeclarations]: Found implementation of procedure __dynamic_dev_dbg [2019-11-07 02:52:55,256 INFO L138 BoogieDeclarations]: Found implementation of procedure __dynamic_pr_debug [2019-11-07 02:52:55,256 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_waitqueue_head [2019-11-07 02:52:55,256 INFO L138 BoogieDeclarations]: Found implementation of procedure __mutex_init [2019-11-07 02:52:55,256 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2019-11-07 02:52:55,256 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2019-11-07 02:52:55,256 INFO L138 BoogieDeclarations]: Found implementation of procedure __virt_addr_valid [2019-11-07 02:52:55,256 INFO L138 BoogieDeclarations]: Found implementation of procedure _dev_info [2019-11-07 02:52:55,257 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock [2019-11-07 02:52:55,257 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock_irq [2019-11-07 02:52:55,257 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_unlock [2019-11-07 02:52:55,257 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_unlock_irq [2019-11-07 02:52:55,257 INFO L138 BoogieDeclarations]: Found implementation of procedure complete [2019-11-07 02:52:55,257 INFO L138 BoogieDeclarations]: Found implementation of procedure completion_done [2019-11-07 02:52:55,258 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_err [2019-11-07 02:52:55,258 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_warn [2019-11-07 02:52:55,258 INFO L138 BoogieDeclarations]: Found implementation of procedure do_gettimeofday [2019-11-07 02:52:55,258 INFO L138 BoogieDeclarations]: Found implementation of procedure kmem_cache_alloc [2019-11-07 02:52:55,258 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2019-11-07 02:52:55,258 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize [2019-11-07 02:52:55,258 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_reset_resume_1 [2019-11-07 02:52:55,259 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_some_page [2019-11-07 02:52:55,259 INFO L138 BoogieDeclarations]: Found implementation of procedure msecs_to_jiffies [2019-11-07 02:52:55,259 INFO L138 BoogieDeclarations]: Found implementation of procedure msleep [2019-11-07 02:52:55,259 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_interruptible_nested [2019-11-07 02:52:55,259 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2019-11-07 02:52:55,259 INFO L138 BoogieDeclarations]: Found implementation of procedure sg_init_table [2019-11-07 02:52:55,260 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_alloc_coherent [2019-11-07 02:52:55,260 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_alloc_urb [2019-11-07 02:52:55,260 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_clear_halt [2019-11-07 02:52:55,260 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_control_msg [2019-11-07 02:52:55,260 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_deregister [2019-11-07 02:52:55,260 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_free_coherent [2019-11-07 02:52:55,260 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_free_urb [2019-11-07 02:52:55,261 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_get_descriptor [2019-11-07 02:52:55,261 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_get_status [2019-11-07 02:52:55,261 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_kill_urb [2019-11-07 02:52:55,261 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_register_driver [2019-11-07 02:52:55,261 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_set_interface [2019-11-07 02:52:55,261 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_sg_init [2019-11-07 02:52:55,261 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_sg_wait [2019-11-07 02:52:55,261 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_speed_string [2019-11-07 02:52:55,262 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_submit_urb [2019-11-07 02:52:55,262 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_unlink_urb [2019-11-07 02:52:55,262 INFO L138 BoogieDeclarations]: Found implementation of procedure wait_for_completion [2019-11-07 02:52:55,262 INFO L138 BoogieDeclarations]: Found implementation of procedure wait_for_completion_timeout [2019-11-07 02:52:55,262 INFO L138 BoogieDeclarations]: Found implementation of procedure external_alloc [2019-11-07 02:52:55,262 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2019-11-07 02:52:55,263 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2019-11-07 02:52:55,263 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2019-11-07 02:52:55,263 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-11-07 02:52:55,263 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2019-11-07 02:52:55,263 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock [2019-11-07 02:52:55,263 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock [2019-11-07 02:52:55,263 INFO L130 BoogieDeclarations]: Found specification of procedure __dynamic_pr_debug [2019-11-07 02:52:55,263 INFO L130 BoogieDeclarations]: Found specification of procedure __dynamic_dev_dbg [2019-11-07 02:52:55,264 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2019-11-07 02:52:55,264 INFO L130 BoogieDeclarations]: Found specification of procedure __virt_addr_valid [2019-11-07 02:52:55,264 INFO L130 BoogieDeclarations]: Found specification of procedure memset [2019-11-07 02:52:55,264 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_set [2019-11-07 02:52:55,264 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-11-07 02:52:55,264 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_inc [2019-11-07 02:52:55,264 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_dec [2019-11-07 02:52:55,264 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_dec_and_test [2019-11-07 02:52:55,265 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2019-11-07 02:52:55,265 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock [2019-11-07 02:52:55,265 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock_irq [2019-11-07 02:52:55,265 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_unlock [2019-11-07 02:52:55,265 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_unlock_irq [2019-11-07 02:52:55,265 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2019-11-07 02:52:55,265 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_1 [2019-11-07 02:52:55,266 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2019-11-07 02:52:55,266 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_irq_4 [2019-11-07 02:52:55,266 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock_irq [2019-11-07 02:52:55,266 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_5 [2019-11-07 02:52:55,266 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2019-11-07 02:52:55,266 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irq_7 [2019-11-07 02:52:55,266 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irq [2019-11-07 02:52:55,267 INFO L130 BoogieDeclarations]: Found specification of procedure do_gettimeofday [2019-11-07 02:52:55,267 INFO L130 BoogieDeclarations]: Found specification of procedure __init_waitqueue_head [2019-11-07 02:52:55,267 INFO L130 BoogieDeclarations]: Found specification of procedure __mutex_init [2019-11-07 02:52:55,267 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_interruptible_nested [2019-11-07 02:52:55,267 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2019-11-07 02:52:55,267 INFO L130 BoogieDeclarations]: Found specification of procedure init_completion [2019-11-07 02:52:55,267 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-07 02:52:55,267 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-07 02:52:55,268 INFO L130 BoogieDeclarations]: Found specification of procedure wait_for_completion [2019-11-07 02:52:55,268 INFO L130 BoogieDeclarations]: Found specification of procedure wait_for_completion_timeout [2019-11-07 02:52:55,268 INFO L130 BoogieDeclarations]: Found specification of procedure completion_done [2019-11-07 02:52:55,268 INFO L130 BoogieDeclarations]: Found specification of procedure complete [2019-11-07 02:52:55,268 INFO L130 BoogieDeclarations]: Found specification of procedure msecs_to_jiffies [2019-11-07 02:52:55,268 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2019-11-07 02:52:55,268 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2019-11-07 02:52:55,269 INFO L130 BoogieDeclarations]: Found specification of procedure __kmalloc [2019-11-07 02:52:55,269 INFO L130 BoogieDeclarations]: Found specification of procedure kmem_cache_alloc [2019-11-07 02:52:55,269 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kmem_cache_alloc_16 [2019-11-07 02:52:55,269 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kmalloc_12 [2019-11-07 02:52:55,269 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2019-11-07 02:52:55,269 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc_array [2019-11-07 02:52:55,269 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kcalloc_14 [2019-11-07 02:52:55,270 INFO L130 BoogieDeclarations]: Found specification of procedure kcalloc [2019-11-07 02:52:55,270 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2019-11-07 02:52:55,270 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags [2019-11-07 02:52:55,270 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-11-07 02:52:55,270 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2019-11-07 02:52:55,270 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-11-07 02:52:55,270 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uint [2019-11-07 02:52:55,270 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_ulong [2019-11-07 02:52:55,271 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_pointer [2019-11-07 02:52:55,271 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assume [2019-11-07 02:52:55,271 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-11-07 02:52:55,271 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2019-11-07 02:52:55,271 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2019-11-07 02:52:55,271 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2019-11-07 02:52:55,271 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_ptr [2019-11-07 02:52:55,271 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_ulong [2019-11-07 02:52:55,272 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2019-11-07 02:52:55,272 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2019-11-07 02:52:55,272 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_trap [2019-11-07 02:52:55,272 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_driver_1 [2019-11-07 02:52:55,272 INFO L130 BoogieDeclarations]: Found specification of procedure lowmem_page_address [2019-11-07 02:52:55,272 INFO L130 BoogieDeclarations]: Found specification of procedure sg_assign_page [2019-11-07 02:52:55,272 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-11-07 02:52:55,273 INFO L130 BoogieDeclarations]: Found specification of procedure sg_set_page [2019-11-07 02:52:55,273 INFO L130 BoogieDeclarations]: Found specification of procedure sg_page [2019-11-07 02:52:55,273 INFO L130 BoogieDeclarations]: Found specification of procedure sg_set_buf [2019-11-07 02:52:55,273 INFO L130 BoogieDeclarations]: Found specification of procedure sg_virt [2019-11-07 02:52:55,273 INFO L130 BoogieDeclarations]: Found specification of procedure sg_init_table [2019-11-07 02:52:55,273 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_type [2019-11-07 02:52:55,273 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_dir_in [2019-11-07 02:52:55,273 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_maxp [2019-11-07 02:52:55,274 INFO L130 BoogieDeclarations]: Found specification of procedure usb_speed_string [2019-11-07 02:52:55,274 INFO L130 BoogieDeclarations]: Found specification of procedure msleep [2019-11-07 02:52:55,274 INFO L130 BoogieDeclarations]: Found specification of procedure dev_get_drvdata [2019-11-07 02:52:55,274 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-11-07 02:52:55,274 INFO L130 BoogieDeclarations]: Found specification of procedure dev_set_drvdata [2019-11-07 02:52:55,274 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-11-07 02:52:55,274 INFO L130 BoogieDeclarations]: Found specification of procedure dev_err [2019-11-07 02:52:55,274 INFO L130 BoogieDeclarations]: Found specification of procedure dev_warn [2019-11-07 02:52:55,275 INFO L130 BoogieDeclarations]: Found specification of procedure _dev_info [2019-11-07 02:52:55,275 INFO L130 BoogieDeclarations]: Found specification of procedure usb_get_intfdata [2019-11-07 02:52:55,275 INFO L130 BoogieDeclarations]: Found specification of procedure usb_set_intfdata [2019-11-07 02:52:55,275 INFO L130 BoogieDeclarations]: Found specification of procedure interface_to_usbdev [2019-11-07 02:52:55,275 INFO L130 BoogieDeclarations]: Found specification of procedure usb_register_driver [2019-11-07 02:52:55,275 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_register_driver_33 [2019-11-07 02:52:55,275 INFO L130 BoogieDeclarations]: Found specification of procedure usb_deregister [2019-11-07 02:52:55,276 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_deregister_34 [2019-11-07 02:52:55,276 INFO L130 BoogieDeclarations]: Found specification of procedure usb_fill_bulk_urb [2019-11-07 02:52:55,276 INFO L130 BoogieDeclarations]: Found specification of procedure usb_alloc_urb [2019-11-07 02:52:55,276 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_alloc_urb_19 [2019-11-07 02:52:55,276 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_alloc_urb_27 [2019-11-07 02:52:55,276 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_alloc_urb_30 [2019-11-07 02:52:55,276 INFO L130 BoogieDeclarations]: Found specification of procedure usb_free_urb [2019-11-07 02:52:55,276 INFO L130 BoogieDeclarations]: Found specification of procedure usb_submit_urb [2019-11-07 02:52:55,277 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_submit_urb_21 [2019-11-07 02:52:55,277 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_submit_urb_22 [2019-11-07 02:52:55,277 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_submit_urb_23 [2019-11-07 02:52:55,277 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_submit_urb_24 [2019-11-07 02:52:55,277 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_submit_urb_25 [2019-11-07 02:52:55,277 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_submit_urb_28 [2019-11-07 02:52:55,278 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_submit_urb_29 [2019-11-07 02:52:55,278 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_submit_urb_32 [2019-11-07 02:52:55,278 INFO L130 BoogieDeclarations]: Found specification of procedure usb_unlink_urb [2019-11-07 02:52:55,278 INFO L130 BoogieDeclarations]: Found specification of procedure usb_kill_urb [2019-11-07 02:52:55,278 INFO L130 BoogieDeclarations]: Found specification of procedure usb_alloc_coherent [2019-11-07 02:52:55,278 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_alloc_coherent_20 [2019-11-07 02:52:55,278 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_alloc_coherent_26 [2019-11-07 02:52:55,278 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_alloc_coherent_31 [2019-11-07 02:52:55,279 INFO L130 BoogieDeclarations]: Found specification of procedure usb_free_coherent [2019-11-07 02:52:55,279 INFO L130 BoogieDeclarations]: Found specification of procedure usb_control_msg [2019-11-07 02:52:55,279 INFO L130 BoogieDeclarations]: Found specification of procedure usb_get_descriptor [2019-11-07 02:52:55,279 INFO L130 BoogieDeclarations]: Found specification of procedure usb_get_status [2019-11-07 02:52:55,279 INFO L130 BoogieDeclarations]: Found specification of procedure usb_clear_halt [2019-11-07 02:52:55,279 INFO L130 BoogieDeclarations]: Found specification of procedure usb_set_interface [2019-11-07 02:52:55,279 INFO L130 BoogieDeclarations]: Found specification of procedure usb_sg_init [2019-11-07 02:52:55,280 INFO L130 BoogieDeclarations]: Found specification of procedure usb_sg_wait [2019-11-07 02:52:55,280 INFO L130 BoogieDeclarations]: Found specification of procedure __create_pipe [2019-11-07 02:52:55,280 INFO L130 BoogieDeclarations]: Found specification of procedure testdev_to_usbdev [2019-11-07 02:52:55,280 INFO L130 BoogieDeclarations]: Found specification of procedure get_endpoints [2019-11-07 02:52:55,280 INFO L130 BoogieDeclarations]: Found specification of procedure simple_callback [2019-11-07 02:52:55,280 INFO L130 BoogieDeclarations]: Found specification of procedure usbtest_alloc_urb [2019-11-07 02:52:55,280 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2019-11-07 02:52:55,281 INFO L130 BoogieDeclarations]: Found specification of procedure simple_alloc_urb [2019-11-07 02:52:55,281 INFO L130 BoogieDeclarations]: Found specification of procedure simple_fill_buf [2019-11-07 02:52:55,281 INFO L130 BoogieDeclarations]: Found specification of procedure buffer_offset [2019-11-07 02:52:55,281 INFO L130 BoogieDeclarations]: Found specification of procedure check_guard_bytes [2019-11-07 02:52:55,281 INFO L130 BoogieDeclarations]: Found specification of procedure simple_check_buf [2019-11-07 02:52:55,281 INFO L130 BoogieDeclarations]: Found specification of procedure simple_free_urb [2019-11-07 02:52:55,281 INFO L130 BoogieDeclarations]: Found specification of procedure simple_io [2019-11-07 02:52:55,281 INFO L130 BoogieDeclarations]: Found specification of procedure free_sglist [2019-11-07 02:52:55,282 INFO L130 BoogieDeclarations]: Found specification of procedure alloc_sglist [2019-11-07 02:52:55,282 INFO L130 BoogieDeclarations]: Found specification of procedure perform_sglist [2019-11-07 02:52:55,282 INFO L130 BoogieDeclarations]: Found specification of procedure get_altsetting [2019-11-07 02:52:55,282 INFO L130 BoogieDeclarations]: Found specification of procedure set_altsetting [2019-11-07 02:52:55,282 INFO L130 BoogieDeclarations]: Found specification of procedure is_good_config [2019-11-07 02:52:55,282 INFO L130 BoogieDeclarations]: Found specification of procedure is_good_ext [2019-11-07 02:52:55,282 INFO L130 BoogieDeclarations]: Found specification of procedure is_good_ss_cap [2019-11-07 02:52:55,283 INFO L130 BoogieDeclarations]: Found specification of procedure is_good_con_id [2019-11-07 02:52:55,283 INFO L130 BoogieDeclarations]: Found specification of procedure ch9_postconfig [2019-11-07 02:52:55,283 INFO L130 BoogieDeclarations]: Found specification of procedure ctrl_complete [2019-11-07 02:52:55,283 INFO L130 BoogieDeclarations]: Found specification of procedure test_ctrl_queue [2019-11-07 02:52:55,283 INFO L130 BoogieDeclarations]: Found specification of procedure unlink1_callback [2019-11-07 02:52:55,283 INFO L130 BoogieDeclarations]: Found specification of procedure unlink1 [2019-11-07 02:52:55,283 INFO L130 BoogieDeclarations]: Found specification of procedure unlink_simple [2019-11-07 02:52:55,283 INFO L130 BoogieDeclarations]: Found specification of procedure unlink_queued_callback [2019-11-07 02:52:55,284 INFO L130 BoogieDeclarations]: Found specification of procedure unlink_queued [2019-11-07 02:52:55,284 INFO L130 BoogieDeclarations]: Found specification of procedure verify_not_halted [2019-11-07 02:52:55,284 INFO L130 BoogieDeclarations]: Found specification of procedure verify_halted [2019-11-07 02:52:55,284 INFO L130 BoogieDeclarations]: Found specification of procedure test_halt [2019-11-07 02:52:55,284 INFO L130 BoogieDeclarations]: Found specification of procedure halt_simple [2019-11-07 02:52:55,284 INFO L130 BoogieDeclarations]: Found specification of procedure ctrl_out [2019-11-07 02:52:55,284 INFO L130 BoogieDeclarations]: Found specification of procedure iso_callback [2019-11-07 02:52:55,284 INFO L130 BoogieDeclarations]: Found specification of procedure iso_alloc_urb [2019-11-07 02:52:55,285 INFO L130 BoogieDeclarations]: Found specification of procedure test_iso_queue [2019-11-07 02:52:55,285 INFO L130 BoogieDeclarations]: Found specification of procedure test_unaligned_bulk [2019-11-07 02:52:55,285 INFO L130 BoogieDeclarations]: Found specification of procedure usbtest_ioctl [2019-11-07 02:52:55,285 INFO L130 BoogieDeclarations]: Found specification of procedure usbtest_probe [2019-11-07 02:52:55,285 INFO L130 BoogieDeclarations]: Found specification of procedure usbtest_suspend [2019-11-07 02:52:55,285 INFO L130 BoogieDeclarations]: Found specification of procedure usbtest_resume [2019-11-07 02:52:55,285 INFO L130 BoogieDeclarations]: Found specification of procedure usbtest_disconnect [2019-11-07 02:52:55,285 INFO L130 BoogieDeclarations]: Found specification of procedure usbtest_init [2019-11-07 02:52:55,286 INFO L130 BoogieDeclarations]: Found specification of procedure usbtest_exit [2019-11-07 02:52:55,286 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize [2019-11-07 02:52:55,286 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_reset_resume_1 [2019-11-07 02:52:55,286 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2019-11-07 02:52:55,286 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-11-07 02:52:55,286 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_some_page [2019-11-07 02:52:55,286 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags_and_return_some_page [2019-11-07 02:52:55,286 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_nonatomic [2019-11-07 02:52:55,287 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_trylock [2019-11-07 02:52:55,287 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_bool [2019-11-07 02:52:55,287 INFO L130 BoogieDeclarations]: Found specification of procedure external_alloc [2019-11-07 02:52:55,287 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-11-07 02:52:55,287 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-11-07 02:52:55,287 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-11-07 02:52:55,287 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2019-11-07 02:52:55,287 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-07 02:52:56,943 INFO L688 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2019-11-07 02:53:12,014 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-07 02:53:12,014 INFO L284 CfgBuilder]: Removed 0 assume(true) statements. [2019-11-07 02:53:12,016 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 02:53:12 BoogieIcfgContainer [2019-11-07 02:53:12,016 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-07 02:53:12,018 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-07 02:53:12,018 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-07 02:53:12,021 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-07 02:53:12,021 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 02:52:51" (1/3) ... [2019-11-07 02:53:12,022 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4f920d2b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 02:53:12, skipping insertion in model container [2019-11-07 02:53:12,022 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:52:54" (2/3) ... [2019-11-07 02:53:12,023 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4f920d2b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 02:53:12, skipping insertion in model container [2019-11-07 02:53:12,023 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 02:53:12" (3/3) ... [2019-11-07 02:53:12,025 INFO L109 eAbstractionObserver]: Analyzing ICFG 43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-drivers--usb--misc--usbtest.ko-entry_point.cil.out.i [2019-11-07 02:53:12,034 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-07 02:53:12,046 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-07 02:53:12,057 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-07 02:53:12,099 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-07 02:53:12,099 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-07 02:53:12,100 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-07 02:53:12,100 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-07 02:53:12,100 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-07 02:53:12,100 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-07 02:53:12,100 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-07 02:53:12,100 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-07 02:53:12,151 INFO L276 IsEmpty]: Start isEmpty. Operand 1367 states. [2019-11-07 02:53:12,160 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2019-11-07 02:53:12,161 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 02:53:12,162 INFO L410 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-07 02:53:12,164 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 02:53:12,168 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 02:53:12,169 INFO L82 PathProgramCache]: Analyzing trace with hash 704219964, now seen corresponding path program 1 times [2019-11-07 02:53:12,178 INFO L161 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-07 02:53:12,179 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [646703929] [2019-11-07 02:53:12,179 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 02:53:12,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 02:53:12,921 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2019-11-07 02:53:12,921 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [646703929] [2019-11-07 02:53:12,922 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 02:53:12,923 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-07 02:53:12,923 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [867868765] [2019-11-07 02:53:12,928 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-07 02:53:12,929 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-07 02:53:12,945 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-07 02:53:12,945 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-07 02:53:12,947 INFO L87 Difference]: Start difference. First operand 1367 states. Second operand 3 states. [2019-11-07 02:53:13,622 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 02:53:13,623 INFO L93 Difference]: Finished difference Result 2557 states and 3599 transitions. [2019-11-07 02:53:13,623 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-07 02:53:13,625 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 44 [2019-11-07 02:53:13,625 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 02:53:13,663 INFO L225 Difference]: With dead ends: 2557 [2019-11-07 02:53:13,663 INFO L226 Difference]: Without dead ends: 1267 [2019-11-07 02:53:13,677 INFO L630 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 [2019-11-07 02:53:13,699 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1267 states. [2019-11-07 02:53:13,903 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1267 to 1260. [2019-11-07 02:53:13,904 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1260 states. [2019-11-07 02:53:13,919 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1260 states to 1260 states and 1729 transitions. [2019-11-07 02:53:13,922 INFO L78 Accepts]: Start accepts. Automaton has 1260 states and 1729 transitions. Word has length 44 [2019-11-07 02:53:13,923 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 02:53:13,923 INFO L462 AbstractCegarLoop]: Abstraction has 1260 states and 1729 transitions. [2019-11-07 02:53:13,923 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-07 02:53:13,923 INFO L276 IsEmpty]: Start isEmpty. Operand 1260 states and 1729 transitions. [2019-11-07 02:53:13,928 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2019-11-07 02:53:13,928 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 02:53:13,928 INFO L410 BasicCegarLoop]: trace histogram [3, 3, 3, 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] [2019-11-07 02:53:13,929 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 02:53:13,929 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 02:53:13,929 INFO L82 PathProgramCache]: Analyzing trace with hash 158946108, now seen corresponding path program 1 times [2019-11-07 02:53:13,929 INFO L161 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-07 02:53:13,930 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1780268496] [2019-11-07 02:53:13,930 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 02:53:14,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 02:53:14,293 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2019-11-07 02:53:14,294 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1780268496] [2019-11-07 02:53:14,294 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 02:53:14,294 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-07 02:53:14,294 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [454780482] [2019-11-07 02:53:14,297 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-07 02:53:14,297 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-07 02:53:14,298 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-07 02:53:14,298 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-07 02:53:14,298 INFO L87 Difference]: Start difference. First operand 1260 states and 1729 transitions. Second operand 3 states. [2019-11-07 02:53:14,359 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 02:53:14,359 INFO L93 Difference]: Finished difference Result 1288 states and 1755 transitions. [2019-11-07 02:53:14,359 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-07 02:53:14,359 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 75 [2019-11-07 02:53:14,360 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 02:53:14,369 INFO L225 Difference]: With dead ends: 1288 [2019-11-07 02:53:14,369 INFO L226 Difference]: Without dead ends: 1285 [2019-11-07 02:53:14,371 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-07 02:53:14,374 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1285 states. [2019-11-07 02:53:14,420 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1285 to 1285. [2019-11-07 02:53:14,420 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1285 states. [2019-11-07 02:53:14,428 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1285 states to 1285 states and 1752 transitions. [2019-11-07 02:53:14,429 INFO L78 Accepts]: Start accepts. Automaton has 1285 states and 1752 transitions. Word has length 75 [2019-11-07 02:53:14,429 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 02:53:14,430 INFO L462 AbstractCegarLoop]: Abstraction has 1285 states and 1752 transitions. [2019-11-07 02:53:14,430 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-07 02:53:14,430 INFO L276 IsEmpty]: Start isEmpty. Operand 1285 states and 1752 transitions. [2019-11-07 02:53:14,442 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 179 [2019-11-07 02:53:14,442 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 02:53:14,442 INFO L410 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-07 02:53:14,443 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 02:53:14,443 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 02:53:14,443 INFO L82 PathProgramCache]: Analyzing trace with hash 1302021089, now seen corresponding path program 1 times [2019-11-07 02:53:14,443 INFO L161 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-07 02:53:14,443 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1001355847] [2019-11-07 02:53:14,444 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 02:53:14,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 02:53:14,756 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2019-11-07 02:53:14,757 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1001355847] [2019-11-07 02:53:14,757 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 02:53:14,757 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-07 02:53:14,758 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1550447986] [2019-11-07 02:53:14,759 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-07 02:53:14,759 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-07 02:53:14,759 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-07 02:53:14,759 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-07 02:53:14,760 INFO L87 Difference]: Start difference. First operand 1285 states and 1752 transitions. Second operand 3 states. [2019-11-07 02:53:17,500 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 02:53:17,501 INFO L93 Difference]: Finished difference Result 2630 states and 3578 transitions. [2019-11-07 02:53:17,501 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-07 02:53:17,501 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 178 [2019-11-07 02:53:17,504 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 02:53:17,520 INFO L225 Difference]: With dead ends: 2630 [2019-11-07 02:53:17,521 INFO L226 Difference]: Without dead ends: 1370 [2019-11-07 02:53:17,527 INFO L630 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 [2019-11-07 02:53:17,533 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1370 states. [2019-11-07 02:53:17,592 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1370 to 1357. [2019-11-07 02:53:17,592 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1357 states. [2019-11-07 02:53:17,605 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1357 states to 1357 states and 1829 transitions. [2019-11-07 02:53:17,606 INFO L78 Accepts]: Start accepts. Automaton has 1357 states and 1829 transitions. Word has length 178 [2019-11-07 02:53:17,607 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 02:53:17,607 INFO L462 AbstractCegarLoop]: Abstraction has 1357 states and 1829 transitions. [2019-11-07 02:53:17,607 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-07 02:53:17,607 INFO L276 IsEmpty]: Start isEmpty. Operand 1357 states and 1829 transitions. [2019-11-07 02:53:17,620 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 205 [2019-11-07 02:53:17,621 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 02:53:17,621 INFO L410 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-07 02:53:17,621 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 02:53:17,621 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 02:53:17,622 INFO L82 PathProgramCache]: Analyzing trace with hash -2127435802, now seen corresponding path program 1 times [2019-11-07 02:53:17,622 INFO L161 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-07 02:53:17,622 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1334990032] [2019-11-07 02:53:17,622 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 02:53:17,762 ERROR L268 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2019-11-07 02:53:17,763 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1341717380] [2019-11-07 02:53:17,763 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 [2019-11-07 02:53:19,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 02:53:19,290 INFO L256 TraceCheckSpWp]: Trace formula consists of 4295 conjuncts, 3 conjunts are in the unsatisfiable core [2019-11-07 02:53:19,313 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-07 02:53:19,552 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2019-11-07 02:53:19,553 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-11-07 02:53:19,851 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2019-11-07 02:53:19,852 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1334990032] [2019-11-07 02:53:19,852 INFO L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2019-11-07 02:53:19,852 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1341717380] [2019-11-07 02:53:19,852 INFO L218 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-07 02:53:19,853 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2019-11-07 02:53:19,853 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1558060847] [2019-11-07 02:53:19,854 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-11-07 02:53:19,854 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-07 02:53:19,855 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-11-07 02:53:19,855 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2019-11-07 02:53:19,855 INFO L87 Difference]: Start difference. First operand 1357 states and 1829 transitions. Second operand 6 states. [2019-11-07 02:53:20,065 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 02:53:20,066 INFO L93 Difference]: Finished difference Result 2698 states and 3666 transitions. [2019-11-07 02:53:20,066 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-11-07 02:53:20,066 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 204 [2019-11-07 02:53:20,067 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 02:53:20,078 INFO L225 Difference]: With dead ends: 2698 [2019-11-07 02:53:20,078 INFO L226 Difference]: Without dead ends: 1363 [2019-11-07 02:53:20,084 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 408 GetRequests, 402 SyntacticMatches, 1 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=23, Unknown=0, NotChecked=0, Total=42 [2019-11-07 02:53:20,087 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1363 states. [2019-11-07 02:53:20,141 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1363 to 1362. [2019-11-07 02:53:20,141 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1362 states. [2019-11-07 02:53:20,154 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1362 states to 1362 states and 1841 transitions. [2019-11-07 02:53:20,155 INFO L78 Accepts]: Start accepts. Automaton has 1362 states and 1841 transitions. Word has length 204 [2019-11-07 02:53:20,155 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 02:53:20,156 INFO L462 AbstractCegarLoop]: Abstraction has 1362 states and 1841 transitions. [2019-11-07 02:53:20,156 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-11-07 02:53:20,156 INFO L276 IsEmpty]: Start isEmpty. Operand 1362 states and 1841 transitions. [2019-11-07 02:53:20,168 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 201 [2019-11-07 02:53:20,168 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 02:53:20,169 INFO L410 BasicCegarLoop]: trace histogram [6, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-07 02:53:20,369 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-07 02:53:20,370 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 02:53:20,370 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 02:53:20,370 INFO L82 PathProgramCache]: Analyzing trace with hash -311703786, now seen corresponding path program 1 times [2019-11-07 02:53:20,371 INFO L161 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-07 02:53:20,371 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1711358018] [2019-11-07 02:53:20,371 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 02:53:20,561 ERROR L268 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2019-11-07 02:53:20,562 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [141179073] [2019-11-07 02:53:20,562 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-07 02:53:22,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 02:53:22,227 INFO L256 TraceCheckSpWp]: Trace formula consists of 4293 conjuncts, 5 conjunts are in the unsatisfiable core [2019-11-07 02:53:22,237 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-07 02:53:22,311 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 30 proven. 3 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2019-11-07 02:53:22,311 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-11-07 02:53:22,544 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 0 proven. 23 refuted. 0 times theorem prover too weak. 49 trivial. 0 not checked. [2019-11-07 02:53:22,545 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1711358018] [2019-11-07 02:53:22,545 INFO L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2019-11-07 02:53:22,545 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [141179073] [2019-11-07 02:53:22,545 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [505813421] [2019-11-07 02:53:22,591 INFO L159 IcfgInterpreter]: Started Sifa with 167 locations of interest [2019-11-07 02:53:22,592 INFO L166 IcfgInterpreter]: Building call graph [2019-11-07 02:53:22,599 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2019-11-07 02:53:22,607 INFO L176 IcfgInterpreter]: Starting interpretation [2019-11-07 02:53:22,608 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs