/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SequenceOfStatements --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=SHALLOWEST --traceabstraction.additional.smt.options log-additional-information=true --traceabstraction.additional.smt.options unknown-allowed=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-64bit-Automizer_Default.epf language data_model -i ../../../trunk/examples/svcomp/ldv-linux-3.16-rc1/43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-drivers--usb--serial--sierra.ko-entry_point.cil.out.i -------------------------------------------------------------------------------- This is Ultimate 0.2.0-0f64333 [2020-10-27 10:43:48,973 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-27 10:43:48,976 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-27 10:43:49,011 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-27 10:43:49,012 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-27 10:43:49,014 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-27 10:43:49,015 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-27 10:43:49,018 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-27 10:43:49,020 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-27 10:43:49,021 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-27 10:43:49,023 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-27 10:43:49,024 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-27 10:43:49,025 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-27 10:43:49,026 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-27 10:43:49,027 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-27 10:43:49,029 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-27 10:43:49,030 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-27 10:43:49,031 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-27 10:43:49,049 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-27 10:43:49,054 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-27 10:43:49,060 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-27 10:43:49,062 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-27 10:43:49,067 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-27 10:43:49,068 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-27 10:43:49,074 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-27 10:43:49,075 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-27 10:43:49,075 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-27 10:43:49,079 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-27 10:43:49,080 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-27 10:43:49,081 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-27 10:43:49,081 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-27 10:43:49,082 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-27 10:43:49,083 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-27 10:43:49,084 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-27 10:43:49,085 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-27 10:43:49,085 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-27 10:43:49,086 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-27 10:43:49,086 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-27 10:43:49,087 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-27 10:43:49,087 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-27 10:43:49,088 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-27 10:43:49,089 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-64bit-Automizer_Default.epf [2020-10-27 10:43:49,117 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-27 10:43:49,118 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-27 10:43:49,119 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-27 10:43:49,120 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-27 10:43:49,120 INFO L138 SettingsManager]: * Use SBE=true [2020-10-27 10:43:49,120 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-27 10:43:49,120 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-27 10:43:49,121 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-27 10:43:49,121 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-27 10:43:49,121 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-27 10:43:49,121 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-27 10:43:49,121 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-27 10:43:49,122 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-27 10:43:49,122 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-27 10:43:49,122 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-27 10:43:49,122 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-27 10:43:49,122 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-27 10:43:49,123 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-27 10:43:49,123 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-27 10:43:49,123 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-27 10:43:49,123 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-27 10:43:49,124 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-27 10:43:49,124 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-27 10:43:49,124 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-27 10:43:49,124 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-27 10:43:49,125 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-27 10:43:49,125 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-10-27 10:43:49,125 INFO L138 SettingsManager]: * To the following directory=dump/ WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SHALLOWEST;log-additional-information=true;unknown-allowed=true; [2020-10-27 10:43:49,521 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-27 10:43:49,547 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-27 10:43:49,551 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-27 10:43:49,552 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-27 10:43:49,553 INFO L275 PluginConnector]: CDTParser initialized [2020-10-27 10:43:49,555 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/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--serial--sierra.ko-entry_point.cil.out.i [2020-10-27 10:43:49,634 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/0323c1407/2e19c879128a4b218b913ddf7a7e49eb/FLAGa75835bed [2020-10-27 10:43:50,600 INFO L306 CDTParser]: Found 1 translation units. [2020-10-27 10:43:50,601 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/ldv-linux-3.16-rc1/43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-drivers--usb--serial--sierra.ko-entry_point.cil.out.i [2020-10-27 10:43:50,661 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/0323c1407/2e19c879128a4b218b913ddf7a7e49eb/FLAGa75835bed [2020-10-27 10:43:51,108 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/0323c1407/2e19c879128a4b218b913ddf7a7e49eb [2020-10-27 10:43:51,114 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-27 10:43:51,123 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-27 10:43:51,129 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-27 10:43:51,129 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-27 10:43:51,133 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-27 10:43:51,134 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.10 10:43:51" (1/1) ... [2020-10-27 10:43:51,138 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2480c267 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 10:43:51, skipping insertion in model container [2020-10-27 10:43:51,139 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.10 10:43:51" (1/1) ... [2020-10-27 10:43:51,147 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-27 10:43:51,272 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-27 10:43:51,777 WARN L1207 CHandler]: Detected problem Invalid redeclaration of the name show at C: (*show)(struct kobject___0 * , struct attribute___0 * , char * ) [3846] [2020-10-27 10:43:51,777 WARN L1207 CHandler]: Detected problem Invalid redeclaration of the name store at C: (*store)(struct kobject___0 * , struct attribute___0 * , char const * , size_t ) [3847-3848] [2020-10-27 10:43:52,821 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-27 10:43:52,891 INFO L203 MainTranslator]: Completed pre-run [2020-10-27 10:43:53,041 WARN L1207 CHandler]: Detected problem Invalid redeclaration of the name show at C: (*show)(struct kobject___0 * , struct attribute___0 * , char * ) [3846] [2020-10-27 10:43:53,041 WARN L1207 CHandler]: Detected problem Invalid redeclaration of the name store at C: (*store)(struct kobject___0 * , struct attribute___0 * , char const * , size_t ) [3847-3848] [2020-10-27 10:43:53,363 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-27 10:43:53,523 INFO L208 MainTranslator]: Completed translation [2020-10-27 10:43:53,524 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 10:43:53 WrapperNode [2020-10-27 10:43:53,524 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-27 10:43:53,525 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-27 10:43:53,525 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-27 10:43:53,526 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-27 10:43:53,539 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 10:43:53" (1/1) ... [2020-10-27 10:43:53,539 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 10:43:53" (1/1) ... [2020-10-27 10:43:53,621 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 10:43:53" (1/1) ... [2020-10-27 10:43:53,622 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 10:43:53" (1/1) ... [2020-10-27 10:43:53,795 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 10:43:53" (1/1) ... [2020-10-27 10:43:53,826 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 10:43:53" (1/1) ... [2020-10-27 10:43:53,862 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 10:43:53" (1/1) ... [2020-10-27 10:43:53,894 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-27 10:43:53,895 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-27 10:43:53,896 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-27 10:43:53,896 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-27 10:43:53,897 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 10:43:53" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/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 [2020-10-27 10:43:53,974 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-27 10:43:53,974 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-27 10:43:53,975 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-27 10:43:53,975 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2020-10-27 10:43:53,975 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2020-10-27 10:43:53,975 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2020-10-27 10:43:53,975 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_1 [2020-10-27 10:43:53,975 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_irq_4 [2020-10-27 10:43:53,975 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_5 [2020-10-27 10:43:53,976 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irq_7 [2020-10-27 10:43:53,976 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irqrestore_8 [2020-10-27 10:43:53,976 INFO L138 BoogieDeclarations]: Found implementation of procedure __kmalloc [2020-10-27 10:43:53,976 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kmalloc_12 [2020-10-27 10:43:53,976 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-10-27 10:43:53,976 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2020-10-27 10:43:53,976 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2020-10-27 10:43:53,977 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2020-10-27 10:43:53,977 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_ulong [2020-10-27 10:43:53,977 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2020-10-27 10:43:53,977 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2020-10-27 10:43:53,977 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2020-10-27 10:43:53,977 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_trap [2020-10-27 10:43:53,977 INFO L138 BoogieDeclarations]: Found implementation of procedure tty_insert_flip_string [2020-10-27 10:43:53,978 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_get_drvdata [2020-10-27 10:43:53,978 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_set_drvdata [2020-10-27 10:43:53,978 INFO L138 BoogieDeclarations]: Found implementation of procedure pm_runtime_mark_last_busy [2020-10-27 10:43:53,978 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_mark_last_busy [2020-10-27 10:43:53,978 INFO L138 BoogieDeclarations]: Found implementation of procedure init_usb_anchor [2020-10-27 10:43:53,978 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_fill_bulk_urb [2020-10-27 10:43:53,978 INFO L138 BoogieDeclarations]: Found implementation of procedure __create_pipe [2020-10-27 10:43:53,979 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_get_serial_port_data [2020-10-27 10:43:53,979 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_set_serial_port_data [2020-10-27 10:43:53,979 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_get_serial_data [2020-10-27 10:43:53,979 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_set_serial_data [2020-10-27 10:43:53,979 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_debug_data [2020-10-27 10:43:53,979 INFO L138 BoogieDeclarations]: Found implementation of procedure sierra_set_power_state [2020-10-27 10:43:53,979 INFO L138 BoogieDeclarations]: Found implementation of procedure sierra_vsc_set_nmea [2020-10-27 10:43:53,979 INFO L138 BoogieDeclarations]: Found implementation of procedure sierra_calc_num_ports [2020-10-27 10:43:53,980 INFO L138 BoogieDeclarations]: Found implementation of procedure is_blacklisted [2020-10-27 10:43:53,980 INFO L138 BoogieDeclarations]: Found implementation of procedure is_himemory [2020-10-27 10:43:53,980 INFO L138 BoogieDeclarations]: Found implementation of procedure sierra_calc_interface [2020-10-27 10:43:53,980 INFO L138 BoogieDeclarations]: Found implementation of procedure sierra_probe [2020-10-27 10:43:53,980 INFO L138 BoogieDeclarations]: Found implementation of procedure sierra_send_setup [2020-10-27 10:43:53,980 INFO L138 BoogieDeclarations]: Found implementation of procedure sierra_tiocmget [2020-10-27 10:43:53,980 INFO L138 BoogieDeclarations]: Found implementation of procedure sierra_tiocmset [2020-10-27 10:43:53,981 INFO L138 BoogieDeclarations]: Found implementation of procedure sierra_release_urb [2020-10-27 10:43:53,981 INFO L138 BoogieDeclarations]: Found implementation of procedure sierra_outdat_callback [2020-10-27 10:43:53,981 INFO L138 BoogieDeclarations]: Found implementation of procedure sierra_write [2020-10-27 10:43:53,981 INFO L138 BoogieDeclarations]: Found implementation of procedure sierra_indat_callback [2020-10-27 10:43:53,981 INFO L138 BoogieDeclarations]: Found implementation of procedure sierra_instat_callback [2020-10-27 10:43:53,981 INFO L138 BoogieDeclarations]: Found implementation of procedure sierra_write_room [2020-10-27 10:43:53,981 INFO L138 BoogieDeclarations]: Found implementation of procedure sierra_chars_in_buffer [2020-10-27 10:43:53,982 INFO L138 BoogieDeclarations]: Found implementation of procedure sierra_stop_rx_urbs [2020-10-27 10:43:53,982 INFO L138 BoogieDeclarations]: Found implementation of procedure sierra_submit_rx_urbs [2020-10-27 10:43:53,982 INFO L138 BoogieDeclarations]: Found implementation of procedure sierra_setup_urb [2020-10-27 10:43:53,982 INFO L138 BoogieDeclarations]: Found implementation of procedure sierra_close [2020-10-27 10:43:53,982 INFO L138 BoogieDeclarations]: Found implementation of procedure sierra_open [2020-10-27 10:43:53,982 INFO L138 BoogieDeclarations]: Found implementation of procedure sierra_dtr_rts [2020-10-27 10:43:53,983 INFO L138 BoogieDeclarations]: Found implementation of procedure sierra_startup [2020-10-27 10:43:53,983 INFO L138 BoogieDeclarations]: Found implementation of procedure sierra_release [2020-10-27 10:43:53,983 INFO L138 BoogieDeclarations]: Found implementation of procedure sierra_port_probe [2020-10-27 10:43:53,983 INFO L138 BoogieDeclarations]: Found implementation of procedure sierra_port_remove [2020-10-27 10:43:53,983 INFO L138 BoogieDeclarations]: Found implementation of procedure stop_read_write_urbs [2020-10-27 10:43:53,983 INFO L138 BoogieDeclarations]: Found implementation of procedure sierra_suspend [2020-10-27 10:43:53,983 INFO L138 BoogieDeclarations]: Found implementation of procedure sierra_submit_delayed_urbs [2020-10-27 10:43:53,983 INFO L138 BoogieDeclarations]: Found implementation of procedure sierra_resume [2020-10-27 10:43:53,984 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_module_init [2020-10-27 10:43:53,984 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_module_exit [2020-10-27 10:43:53,984 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize_usb_serial_driver_1 [2020-10-27 10:43:53,984 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-27 10:43:53,984 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2020-10-27 10:43:53,984 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock_irq [2020-10-27 10:43:53,984 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2020-10-27 10:43:53,985 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irq [2020-10-27 10:43:53,985 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2020-10-27 10:43:53,985 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2020-10-27 10:43:53,985 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2020-10-27 10:43:53,985 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_alloc_urb_19 [2020-10-27 10:43:53,985 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_submit_urb_20 [2020-10-27 10:43:53,985 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_submit_urb_21 [2020-10-27 10:43:53,986 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_submit_urb_22 [2020-10-27 10:43:53,986 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_submit_urb_23 [2020-10-27 10:43:53,986 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_submit_urb_24 [2020-10-27 10:43:53,986 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_alloc_urb_25 [2020-10-27 10:43:53,986 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_submit_urb_26 [2020-10-27 10:43:53,986 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags [2020-10-27 10:43:53,986 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags_and_return_some_page [2020-10-27 10:43:53,987 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_nonatomic [2020-10-27 10:43:53,987 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock [2020-10-27 10:43:53,987 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock [2020-10-27 10:43:53,987 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_trylock [2020-10-27 10:43:53,987 INFO L138 BoogieDeclarations]: Found implementation of procedure __dynamic_dev_dbg [2020-10-27 10:43:53,987 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_waitqueue_head [2020-10-27 10:43:53,987 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2020-10-27 10:43:53,987 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock [2020-10-27 10:43:53,988 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock_irq [2020-10-27 10:43:53,988 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_unlock [2020-10-27 10:43:53,988 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_unlock_irq [2020-10-27 10:43:53,988 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_unlock_irqrestore [2020-10-27 10:43:53,988 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_err [2020-10-27 10:43:53,988 INFO L138 BoogieDeclarations]: Found implementation of procedure kmem_cache_alloc [2020-10-27 10:43:53,988 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2020-10-27 10:43:53,988 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_detach_1 [2020-10-27 10:43:53,989 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize [2020-10-27 10:43:53,989 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_some_page [2020-10-27 10:43:53,989 INFO L138 BoogieDeclarations]: Found implementation of procedure tty_flip_buffer_push [2020-10-27 10:43:53,989 INFO L138 BoogieDeclarations]: Found implementation of procedure tty_insert_flip_string_fixed_flag [2020-10-27 10:43:53,989 INFO L138 BoogieDeclarations]: Found implementation of procedure tty_port_tty_hangup [2020-10-27 10:43:53,989 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_alloc_urb [2020-10-27 10:43:53,989 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_anchor_urb [2020-10-27 10:43:53,989 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_autopm_get_interface [2020-10-27 10:43:53,990 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_autopm_get_interface_async [2020-10-27 10:43:53,990 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_autopm_get_interface_no_resume [2020-10-27 10:43:53,990 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_autopm_put_interface [2020-10-27 10:43:53,990 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_autopm_put_interface_async [2020-10-27 10:43:53,990 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_clear_halt [2020-10-27 10:43:53,990 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_control_msg [2020-10-27 10:43:53,990 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_free_urb [2020-10-27 10:43:53,991 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_get_from_anchor [2020-10-27 10:43:53,991 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_kill_anchored_urbs [2020-10-27 10:43:53,991 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_kill_urb [2020-10-27 10:43:53,991 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_deregister_drivers [2020-10-27 10:43:53,991 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_port_softint [2020-10-27 10:43:53,991 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_register_drivers [2020-10-27 10:43:53,991 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_set_interface [2020-10-27 10:43:53,992 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_submit_urb [2020-10-27 10:43:53,992 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_unanchor_urb [2020-10-27 10:43:53,992 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2020-10-27 10:43:53,992 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2020-10-27 10:43:53,992 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2020-10-27 10:43:53,992 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2020-10-27 10:43:53,993 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-27 10:43:53,993 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-27 10:43:53,993 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_perror_fail [2020-10-27 10:43:53,993 INFO L130 BoogieDeclarations]: Found specification of procedure __assert [2020-10-27 10:43:53,993 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-27 10:43:53,993 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-27 10:43:53,993 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2020-10-27 10:43:53,994 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock [2020-10-27 10:43:53,994 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock [2020-10-27 10:43:53,994 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2020-10-27 10:43:53,994 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-27 10:43:53,994 INFO L130 BoogieDeclarations]: Found specification of procedure __dynamic_dev_dbg [2020-10-27 10:43:53,994 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2020-10-27 10:43:53,994 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-10-27 10:43:53,995 INFO L130 BoogieDeclarations]: Found specification of procedure memset [2020-10-27 10:43:53,995 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2020-10-27 10:43:53,995 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock [2020-10-27 10:43:53,995 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock_irq [2020-10-27 10:43:53,995 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_unlock [2020-10-27 10:43:53,995 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_unlock_irq [2020-10-27 10:43:53,995 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_unlock_irqrestore [2020-10-27 10:43:53,996 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2020-10-27 10:43:53,996 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_1 [2020-10-27 10:43:53,996 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2020-10-27 10:43:53,996 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_irq_4 [2020-10-27 10:43:53,996 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock_irq [2020-10-27 10:43:53,996 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_5 [2020-10-27 10:43:53,996 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2020-10-27 10:43:53,996 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irq_7 [2020-10-27 10:43:53,997 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irq [2020-10-27 10:43:53,997 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irqrestore_8 [2020-10-27 10:43:53,997 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2020-10-27 10:43:53,997 INFO L130 BoogieDeclarations]: Found specification of procedure __init_waitqueue_head [2020-10-27 10:43:53,997 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2020-10-27 10:43:53,997 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2020-10-27 10:43:53,997 INFO L130 BoogieDeclarations]: Found specification of procedure __kmalloc [2020-10-27 10:43:53,997 INFO L130 BoogieDeclarations]: Found specification of procedure kmem_cache_alloc [2020-10-27 10:43:53,998 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kmalloc_12 [2020-10-27 10:43:53,998 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2020-10-27 10:43:53,998 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2020-10-27 10:43:53,998 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags [2020-10-27 10:43:53,998 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-10-27 10:43:53,998 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2020-10-27 10:43:53,998 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-27 10:43:53,998 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uint [2020-10-27 10:43:53,999 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_ulong [2020-10-27 10:43:53,999 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-10-27 10:43:53,999 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-10-27 10:43:53,999 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2020-10-27 10:43:53,999 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2020-10-27 10:43:53,999 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2020-10-27 10:43:53,999 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_ulong [2020-10-27 10:43:53,999 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2020-10-27 10:43:54,000 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2020-10-27 10:43:54,000 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_trap [2020-10-27 10:43:54,000 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize_usb_serial_driver_1 [2020-10-27 10:43:54,000 INFO L130 BoogieDeclarations]: Found specification of procedure tty_port_tty_hangup [2020-10-27 10:43:54,000 INFO L130 BoogieDeclarations]: Found specification of procedure tty_insert_flip_string_fixed_flag [2020-10-27 10:43:54,000 INFO L130 BoogieDeclarations]: Found specification of procedure tty_flip_buffer_push [2020-10-27 10:43:54,000 INFO L130 BoogieDeclarations]: Found specification of procedure tty_insert_flip_string [2020-10-27 10:43:54,000 INFO L130 BoogieDeclarations]: Found specification of procedure dev_get_drvdata [2020-10-27 10:43:54,001 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-10-27 10:43:54,001 INFO L130 BoogieDeclarations]: Found specification of procedure dev_set_drvdata [2020-10-27 10:43:54,001 INFO L130 BoogieDeclarations]: Found specification of procedure dev_err [2020-10-27 10:43:54,001 INFO L130 BoogieDeclarations]: Found specification of procedure pm_runtime_mark_last_busy [2020-10-27 10:43:54,001 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-27 10:43:54,001 INFO L130 BoogieDeclarations]: Found specification of procedure usb_autopm_get_interface [2020-10-27 10:43:54,001 INFO L130 BoogieDeclarations]: Found specification of procedure usb_autopm_put_interface [2020-10-27 10:43:54,001 INFO L130 BoogieDeclarations]: Found specification of procedure usb_autopm_get_interface_async [2020-10-27 10:43:54,002 INFO L130 BoogieDeclarations]: Found specification of procedure usb_autopm_put_interface_async [2020-10-27 10:43:54,002 INFO L130 BoogieDeclarations]: Found specification of procedure usb_autopm_get_interface_no_resume [2020-10-27 10:43:54,002 INFO L130 BoogieDeclarations]: Found specification of procedure usb_mark_last_busy [2020-10-27 10:43:54,002 INFO L130 BoogieDeclarations]: Found specification of procedure init_usb_anchor [2020-10-27 10:43:54,002 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2020-10-27 10:43:54,002 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-27 10:43:54,002 INFO L130 BoogieDeclarations]: Found specification of procedure usb_fill_bulk_urb [2020-10-27 10:43:54,003 INFO L130 BoogieDeclarations]: Found specification of procedure usb_alloc_urb [2020-10-27 10:43:54,003 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_alloc_urb_19 [2020-10-27 10:43:54,003 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_alloc_urb_25 [2020-10-27 10:43:54,003 INFO L130 BoogieDeclarations]: Found specification of procedure usb_free_urb [2020-10-27 10:43:54,003 INFO L130 BoogieDeclarations]: Found specification of procedure usb_submit_urb [2020-10-27 10:43:54,003 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_submit_urb_20 [2020-10-27 10:43:54,003 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_submit_urb_21 [2020-10-27 10:43:54,003 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_submit_urb_22 [2020-10-27 10:43:54,004 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_submit_urb_23 [2020-10-27 10:43:54,004 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_submit_urb_24 [2020-10-27 10:43:54,004 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_submit_urb_26 [2020-10-27 10:43:54,004 INFO L130 BoogieDeclarations]: Found specification of procedure usb_kill_urb [2020-10-27 10:43:54,004 INFO L130 BoogieDeclarations]: Found specification of procedure usb_kill_anchored_urbs [2020-10-27 10:43:54,004 INFO L130 BoogieDeclarations]: Found specification of procedure usb_anchor_urb [2020-10-27 10:43:54,004 INFO L130 BoogieDeclarations]: Found specification of procedure usb_unanchor_urb [2020-10-27 10:43:54,004 INFO L130 BoogieDeclarations]: Found specification of procedure usb_get_from_anchor [2020-10-27 10:43:54,005 INFO L130 BoogieDeclarations]: Found specification of procedure usb_control_msg [2020-10-27 10:43:54,005 INFO L130 BoogieDeclarations]: Found specification of procedure usb_clear_halt [2020-10-27 10:43:54,005 INFO L130 BoogieDeclarations]: Found specification of procedure usb_set_interface [2020-10-27 10:43:54,005 INFO L130 BoogieDeclarations]: Found specification of procedure __create_pipe [2020-10-27 10:43:54,005 INFO L130 BoogieDeclarations]: Found specification of procedure usb_get_serial_port_data [2020-10-27 10:43:54,005 INFO L130 BoogieDeclarations]: Found specification of procedure usb_set_serial_port_data [2020-10-27 10:43:54,005 INFO L130 BoogieDeclarations]: Found specification of procedure usb_get_serial_data [2020-10-27 10:43:54,006 INFO L130 BoogieDeclarations]: Found specification of procedure usb_set_serial_data [2020-10-27 10:43:54,006 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_register_drivers [2020-10-27 10:43:54,006 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_deregister_drivers [2020-10-27 10:43:54,006 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_port_softint [2020-10-27 10:43:54,006 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_debug_data [2020-10-27 10:43:54,006 INFO L130 BoogieDeclarations]: Found specification of procedure sierra_set_power_state [2020-10-27 10:43:54,006 INFO L130 BoogieDeclarations]: Found specification of procedure sierra_vsc_set_nmea [2020-10-27 10:43:54,006 INFO L130 BoogieDeclarations]: Found specification of procedure sierra_calc_num_ports [2020-10-27 10:43:54,006 INFO L130 BoogieDeclarations]: Found specification of procedure is_blacklisted [2020-10-27 10:43:54,007 INFO L130 BoogieDeclarations]: Found specification of procedure is_himemory [2020-10-27 10:43:54,007 INFO L130 BoogieDeclarations]: Found specification of procedure sierra_calc_interface [2020-10-27 10:43:54,007 INFO L130 BoogieDeclarations]: Found specification of procedure sierra_probe [2020-10-27 10:43:54,007 INFO L130 BoogieDeclarations]: Found specification of procedure sierra_send_setup [2020-10-27 10:43:54,007 INFO L130 BoogieDeclarations]: Found specification of procedure sierra_tiocmget [2020-10-27 10:43:54,007 INFO L130 BoogieDeclarations]: Found specification of procedure sierra_tiocmset [2020-10-27 10:43:54,007 INFO L130 BoogieDeclarations]: Found specification of procedure sierra_release_urb [2020-10-27 10:43:54,008 INFO L130 BoogieDeclarations]: Found specification of procedure sierra_outdat_callback [2020-10-27 10:43:54,008 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy [2020-10-27 10:43:54,008 INFO L130 BoogieDeclarations]: Found specification of procedure sierra_write [2020-10-27 10:43:54,008 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2020-10-27 10:43:54,008 INFO L130 BoogieDeclarations]: Found specification of procedure sierra_indat_callback [2020-10-27 10:43:54,008 INFO L130 BoogieDeclarations]: Found specification of procedure sierra_instat_callback [2020-10-27 10:43:54,008 INFO L130 BoogieDeclarations]: Found specification of procedure sierra_write_room [2020-10-27 10:43:54,008 INFO L130 BoogieDeclarations]: Found specification of procedure sierra_chars_in_buffer [2020-10-27 10:43:54,009 INFO L130 BoogieDeclarations]: Found specification of procedure sierra_stop_rx_urbs [2020-10-27 10:43:54,009 INFO L130 BoogieDeclarations]: Found specification of procedure sierra_submit_rx_urbs [2020-10-27 10:43:54,009 INFO L130 BoogieDeclarations]: Found specification of procedure sierra_setup_urb [2020-10-27 10:43:54,009 INFO L130 BoogieDeclarations]: Found specification of procedure sierra_close [2020-10-27 10:43:54,009 INFO L130 BoogieDeclarations]: Found specification of procedure sierra_open [2020-10-27 10:43:54,009 INFO L130 BoogieDeclarations]: Found specification of procedure sierra_dtr_rts [2020-10-27 10:43:54,009 INFO L130 BoogieDeclarations]: Found specification of procedure sierra_startup [2020-10-27 10:43:54,009 INFO L130 BoogieDeclarations]: Found specification of procedure sierra_release [2020-10-27 10:43:54,010 INFO L130 BoogieDeclarations]: Found specification of procedure sierra_port_probe [2020-10-27 10:43:54,010 INFO L130 BoogieDeclarations]: Found specification of procedure sierra_port_remove [2020-10-27 10:43:54,010 INFO L130 BoogieDeclarations]: Found specification of procedure stop_read_write_urbs [2020-10-27 10:43:54,010 INFO L130 BoogieDeclarations]: Found specification of procedure sierra_suspend [2020-10-27 10:43:54,010 INFO L130 BoogieDeclarations]: Found specification of procedure sierra_submit_delayed_urbs [2020-10-27 10:43:54,010 INFO L130 BoogieDeclarations]: Found specification of procedure sierra_resume [2020-10-27 10:43:54,010 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_module_init [2020-10-27 10:43:54,010 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_module_exit [2020-10-27 10:43:54,011 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_detach_1 [2020-10-27 10:43:54,011 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize [2020-10-27 10:43:54,011 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2020-10-27 10:43:54,011 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-27 10:43:54,011 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_some_page [2020-10-27 10:43:54,011 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags_and_return_some_page [2020-10-27 10:43:54,011 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_nonatomic [2020-10-27 10:43:54,011 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_trylock [2020-10-27 10:43:54,012 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-10-27 10:43:54,012 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-27 10:43:54,012 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-27 10:43:54,012 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2020-10-27 10:43:54,012 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-27 10:43:54,012 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2020-10-27 10:43:54,012 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2020-10-27 10:43:54,012 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2020-10-27 10:43:54,013 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2020-10-27 10:43:54,908 INFO L751 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2020-10-27 10:44:03,215 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-27 10:44:03,216 INFO L298 CfgBuilder]: Removed 0 assume(true) statements. [2020-10-27 10:44:03,220 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.10 10:44:03 BoogieIcfgContainer [2020-10-27 10:44:03,220 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-27 10:44:03,224 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-27 10:44:03,224 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-27 10:44:03,228 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-27 10:44:03,229 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.10 10:43:51" (1/3) ... [2020-10-27 10:44:03,230 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@511a62c2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.10 10:44:03, skipping insertion in model container [2020-10-27 10:44:03,230 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 10:43:53" (2/3) ... [2020-10-27 10:44:03,230 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@511a62c2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.10 10:44:03, skipping insertion in model container [2020-10-27 10:44:03,230 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.10 10:44:03" (3/3) ... [2020-10-27 10:44:03,232 INFO L111 eAbstractionObserver]: Analyzing ICFG 43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-drivers--usb--serial--sierra.ko-entry_point.cil.out.i [2020-10-27 10:44:03,247 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-27 10:44:03,255 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-27 10:44:03,270 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-27 10:44:03,316 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-27 10:44:03,317 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-27 10:44:03,317 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-27 10:44:03,317 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-27 10:44:03,317 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-27 10:44:03,317 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-27 10:44:03,317 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-27 10:44:03,318 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-27 10:44:03,379 INFO L276 IsEmpty]: Start isEmpty. Operand 1182 states. [2020-10-27 10:44:03,392 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2020-10-27 10:44:03,392 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 10:44:03,393 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 10:44:03,393 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 10:44:03,400 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 10:44:03,401 INFO L82 PathProgramCache]: Analyzing trace with hash 439758382, now seen corresponding path program 1 times [2020-10-27 10:44:03,411 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 10:44:03,412 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1471266469] [2020-10-27 10:44:03,412 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 10:44:04,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 10:44:04,397 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 10:44:04,800 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 10:44:08,633 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 10:44:10,614 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 10:44:10,615 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 77 [2020-10-27 10:44:10,615 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-27 10:44:10,615 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6464 [2020-10-27 10:44:10,618 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 10:44:10,618 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-27 10:44:10,619 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 42 [2020-10-27 10:44:10,619 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-27 10:44:10,619 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-27 10:44:17,221 WARN L193 SmtUtils]: Spent 6.30 s on a formula simplification that was a NOOP. DAG size: 988 [2020-10-27 10:44:17,225 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 10:44:17,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 10:44:17,297 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 10:44:18,794 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 10:44:18,794 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 10:44:18,794 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 10:44:18,794 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1520 [2020-10-27 10:44:18,795 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 10:44:18,795 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 10:44:18,795 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 10:44:18,795 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 10:44:18,795 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 10:44:18,955 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 10:44:18,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 10:44:18,962 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 10:44:18,966 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 10:44:18,966 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 10:44:18,966 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 10:44:18,966 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-27 10:44:18,967 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 10:44:18,967 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 10:44:18,967 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 10:44:18,967 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 10:44:18,967 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 10:44:18,974 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-27 10:44:18,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 10:44:18,981 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 10:44:18,985 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 10:44:18,985 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 10:44:18,985 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 10:44:18,985 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-27 10:44:18,986 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 10:44:18,986 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 10:44:18,986 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 10:44:18,986 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 10:44:18,986 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 10:44:18,993 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-27 10:44:18,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 10:44:19,000 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 10:44:19,004 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 10:44:19,004 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 10:44:19,004 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 10:44:19,005 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-27 10:44:19,005 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 10:44:19,005 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 10:44:19,005 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 10:44:19,005 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 10:44:19,006 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 10:44:19,012 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2020-10-27 10:44:19,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 10:44:19,018 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 10:44:19,020 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 10:44:19,020 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-27 10:44:19,020 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 10:44:19,020 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-27 10:44:19,021 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 10:44:19,021 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 10:44:19,021 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 10:44:19,021 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 10:44:19,022 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 10:44:19,054 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2020-10-27 10:44:19,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 10:44:19,063 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 10:44:19,072 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 10:44:19,073 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 10:44:19,073 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 10:44:19,073 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-27 10:44:19,073 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 10:44:19,073 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-27 10:44:19,073 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-27 10:44:19,074 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 10:44:19,074 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 10:44:19,163 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2020-10-27 10:44:19,164 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1471266469] [2020-10-27 10:44:19,166 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 10:44:19,167 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-27 10:44:19,167 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1169570772] [2020-10-27 10:44:19,172 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-27 10:44:19,173 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 10:44:19,189 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-27 10:44:19,190 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-10-27 10:44:19,192 INFO L87 Difference]: Start difference. First operand 1182 states. Second operand 7 states. [2020-10-27 10:44:25,232 WARN L193 SmtUtils]: Spent 5.97 s on a formula simplification that was a NOOP. DAG size: 997 [2020-10-27 10:44:43,264 WARN L193 SmtUtils]: Spent 5.93 s on a formula simplification that was a NOOP. DAG size: 1000 [2020-10-27 10:44:49,451 WARN L193 SmtUtils]: Spent 6.10 s on a formula simplification that was a NOOP. DAG size: 1002 [2020-10-27 10:45:25,781 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 10:45:25,782 INFO L93 Difference]: Finished difference Result 2393 states and 3348 transitions. [2020-10-27 10:45:25,784 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-27 10:45:25,785 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 51 [2020-10-27 10:45:25,786 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 10:45:25,826 INFO L225 Difference]: With dead ends: 2393 [2020-10-27 10:45:25,826 INFO L226 Difference]: Without dead ends: 1255 [2020-10-27 10:45:25,848 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 24.6s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2020-10-27 10:45:25,875 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1255 states. [2020-10-27 10:45:26,539 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1255 to 1100. [2020-10-27 10:45:26,541 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1100 states. [2020-10-27 10:45:26,554 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1100 states to 1100 states and 1481 transitions. [2020-10-27 10:45:26,558 INFO L78 Accepts]: Start accepts. Automaton has 1100 states and 1481 transitions. Word has length 51 [2020-10-27 10:45:26,559 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 10:45:26,559 INFO L481 AbstractCegarLoop]: Abstraction has 1100 states and 1481 transitions. [2020-10-27 10:45:26,559 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-27 10:45:26,560 INFO L276 IsEmpty]: Start isEmpty. Operand 1100 states and 1481 transitions. [2020-10-27 10:45:26,574 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2020-10-27 10:45:26,574 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 10:45:26,574 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 10:45:26,575 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-27 10:45:26,575 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 10:45:26,575 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 10:45:26,576 INFO L82 PathProgramCache]: Analyzing trace with hash 1846607746, now seen corresponding path program 1 times [2020-10-27 10:45:26,576 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 10:45:26,576 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1284569248] [2020-10-27 10:45:26,576 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 10:45:26,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 10:45:26,956 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 10:45:27,375 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 10:45:33,133 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 10:45:33,133 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 78 [2020-10-27 10:45:33,134 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 10:45:33,134 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6328 [2020-10-27 10:45:33,134 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 10:45:33,134 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 10:45:33,134 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-27 10:45:33,134 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 65 [2020-10-27 10:45:33,135 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 10:45:39,309 WARN L193 SmtUtils]: Spent 5.86 s on a formula simplification that was a NOOP. DAG size: 988 [2020-10-27 10:45:39,317 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 10:45:39,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 10:45:39,582 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 10:45:43,391 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 10:45:43,392 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 10:45:43,392 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 10:45:43,392 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3918 [2020-10-27 10:45:43,392 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 10:45:43,392 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 10:45:43,393 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 10:45:43,393 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-27 10:45:43,393 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 10:45:43,562 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 10:45:43,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 10:45:43,576 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 10:45:43,582 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 10:45:43,582 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 10:45:43,582 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 10:45:43,583 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-27 10:45:43,583 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 10:45:43,583 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 10:45:43,583 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 10:45:43,583 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 10:45:43,584 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 10:45:43,591 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-27 10:45:43,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 10:45:43,601 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 10:45:43,610 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 10:45:43,611 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 10:45:43,611 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 10:45:43,611 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-27 10:45:43,611 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 10:45:43,611 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 10:45:43,612 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 10:45:43,612 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 10:45:43,612 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 10:45:43,622 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-27 10:45:43,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 10:45:43,630 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 10:45:43,639 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 10:45:43,639 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 10:45:43,639 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 10:45:43,639 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-27 10:45:43,640 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 10:45:43,640 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 10:45:43,640 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 10:45:43,640 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 10:45:43,640 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 10:45:43,647 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2020-10-27 10:45:43,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 10:45:43,653 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 10:45:43,657 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 10:45:43,657 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-27 10:45:43,657 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 10:45:43,658 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-27 10:45:43,658 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 10:45:43,658 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 10:45:43,658 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 10:45:43,658 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-27 10:45:43,659 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 10:45:43,697 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2020-10-27 10:45:43,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 10:45:43,714 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 10:45:43,747 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 10:45:43,827 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 10:45:43,828 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 10:45:43,828 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 10:45:43,828 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 124 [2020-10-27 10:45:43,828 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 10:45:43,829 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 10:45:43,829 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 10:45:43,829 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-27 10:45:43,829 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 10:45:43,881 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2020-10-27 10:45:43,881 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1284569248] [2020-10-27 10:45:43,882 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 10:45:43,882 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-27 10:45:43,882 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1480326175] [2020-10-27 10:45:43,885 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-27 10:45:43,885 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 10:45:43,892 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-27 10:45:43,892 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-10-27 10:45:43,892 INFO L87 Difference]: Start difference. First operand 1100 states and 1481 transitions. Second operand 6 states. [2020-10-27 10:45:50,001 WARN L193 SmtUtils]: Spent 6.08 s on a formula simplification that was a NOOP. DAG size: 997 [2020-10-27 10:45:58,724 WARN L193 SmtUtils]: Spent 6.14 s on a formula simplification that was a NOOP. DAG size: 999 [2020-10-27 10:46:04,958 WARN L193 SmtUtils]: Spent 6.04 s on a formula simplification that was a NOOP. DAG size: 990 [2020-10-27 10:46:46,477 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 10:46:46,477 INFO L93 Difference]: Finished difference Result 1429 states and 1953 transitions. [2020-10-27 10:46:46,479 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-27 10:46:46,479 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 52 [2020-10-27 10:46:46,479 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 10:46:46,492 INFO L225 Difference]: With dead ends: 1429 [2020-10-27 10:46:46,492 INFO L226 Difference]: Without dead ends: 1424 [2020-10-27 10:46:46,494 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 24.4s TimeCoverageRelationStatistics Valid=45, Invalid=87, Unknown=0, NotChecked=0, Total=132 [2020-10-27 10:46:46,497 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1424 states. [2020-10-27 10:46:47,015 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1424 to 1250. [2020-10-27 10:46:47,015 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1250 states. [2020-10-27 10:46:47,024 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1250 states to 1250 states and 1665 transitions. [2020-10-27 10:46:47,024 INFO L78 Accepts]: Start accepts. Automaton has 1250 states and 1665 transitions. Word has length 52 [2020-10-27 10:46:47,025 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 10:46:47,025 INFO L481 AbstractCegarLoop]: Abstraction has 1250 states and 1665 transitions. [2020-10-27 10:46:47,025 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-27 10:46:47,025 INFO L276 IsEmpty]: Start isEmpty. Operand 1250 states and 1665 transitions. [2020-10-27 10:46:47,037 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2020-10-27 10:46:47,038 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 10:46:47,039 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 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] [2020-10-27 10:46:47,039 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-27 10:46:47,040 INFO L429 AbstractCegarLoop]: === Iteration 3 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 10:46:47,041 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 10:46:47,041 INFO L82 PathProgramCache]: Analyzing trace with hash 1111619790, now seen corresponding path program 1 times [2020-10-27 10:46:47,041 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 10:46:47,041 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1235460064] [2020-10-27 10:46:47,041 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 10:46:47,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 10:46:47,416 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 10:46:47,714 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 10:46:48,086 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 10:46:52,295 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 10:46:52,296 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 177 [2020-10-27 10:46:52,296 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-27 10:46:52,296 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5053 [2020-10-27 10:46:52,296 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 10:46:52,296 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 10:46:52,297 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 42 [2020-10-27 10:46:52,297 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-27 10:46:52,297 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 10:46:58,268 WARN L193 SmtUtils]: Spent 5.78 s on a formula simplification that was a NOOP. DAG size: 988 [2020-10-27 10:46:58,271 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 10:46:58,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 10:46:58,329 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 10:47:01,416 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 10:47:01,416 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 10:47:01,416 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 10:47:01,416 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3100 [2020-10-27 10:47:01,417 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 10:47:01,417 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 10:47:01,417 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 10:47:01,417 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 10:47:01,417 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 10:47:01,552 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 10:47:01,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 10:47:01,558 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 10:47:01,562 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 10:47:01,562 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 10:47:01,562 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 10:47:01,563 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-27 10:47:01,563 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 10:47:01,563 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 10:47:01,563 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 10:47:01,563 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 10:47:01,563 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 10:47:01,569 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-27 10:47:01,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 10:47:01,574 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 10:47:01,576 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 10:47:01,577 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 10:47:01,577 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 10:47:01,577 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-27 10:47:01,577 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 10:47:01,577 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 10:47:01,578 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 10:47:01,578 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 10:47:01,578 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 10:47:01,583 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-27 10:47:01,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 10:47:01,588 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 10:47:01,591 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 10:47:01,591 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 10:47:01,591 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 10:47:01,591 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-27 10:47:01,591 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 10:47:01,592 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 10:47:01,592 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 10:47:01,592 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 10:47:01,592 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 10:47:01,597 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2020-10-27 10:47:01,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 10:47:01,603 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 10:47:01,605 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 10:47:01,605 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-27 10:47:01,605 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 10:47:01,606 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-27 10:47:01,606 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 10:47:01,606 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 10:47:01,606 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 10:47:01,606 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 10:47:01,606 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 10:47:01,641 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2020-10-27 10:47:01,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 10:47:01,651 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 10:47:01,682 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 10:47:01,682 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 10:47:01,683 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 10:47:01,683 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 35 [2020-10-27 10:47:01,683 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 10:47:01,683 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 10:47:01,683 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-27 10:47:01,683 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-27 10:47:01,684 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 10:47:01,773 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2020-10-27 10:47:01,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 10:47:01,780 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 10:47:01,785 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 10:47:01,785 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 10:47:01,786 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 10:47:01,786 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-27 10:47:01,786 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 10:47:01,786 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 10:47:01,786 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-27 10:47:01,787 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 10:47:01,787 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 10:47:01,818 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2020-10-27 10:47:01,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 10:47:01,826 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 10:47:01,830 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 10:47:01,831 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 26 [2020-10-27 10:47:01,831 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 10:47:01,831 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-27 10:47:01,831 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 10:47:01,831 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 10:47:01,831 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 23 [2020-10-27 10:47:01,832 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 10:47:01,832 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 10:47:01,837 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-27 10:47:01,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 10:47:01,842 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 10:47:01,844 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 10:47:01,844 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 10:47:01,844 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 10:47:01,845 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-27 10:47:01,845 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 10:47:01,845 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 10:47:01,845 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 10:47:01,845 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 10:47:01,846 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 10:47:01,850 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-10-27 10:47:01,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 10:47:01,855 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 10:47:01,872 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 10:47:01,872 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-27 10:47:01,873 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 10:47:01,873 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-10-27 10:47:01,873 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 10:47:01,873 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 10:47:01,873 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 10:47:01,873 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 10:47:01,874 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 10:47:01,879 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-27 10:47:01,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 10:47:01,883 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 10:47:01,885 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 10:47:01,885 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 10:47:01,886 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 10:47:01,886 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-27 10:47:01,886 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 10:47:01,886 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 10:47:01,886 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 10:47:01,886 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 10:47:01,887 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 10:47:01,891 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2020-10-27 10:47:01,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 10:47:01,896 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 10:47:01,899 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 10:47:01,899 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 10:47:01,899 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 10:47:01,899 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-27 10:47:01,899 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 10:47:01,899 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 10:47:01,900 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-27 10:47:01,900 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 10:47:01,900 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 10:47:01,905 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-10-27 10:47:01,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 10:47:01,913 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 10:47:01,920 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 10:47:01,920 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-27 10:47:01,920 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 10:47:01,921 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-27 10:47:01,921 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 10:47:01,921 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 10:47:01,921 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-10-27 10:47:01,922 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 10:47:01,922 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-27 10:47:01,930 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-27 10:47:01,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 10:47:01,936 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 10:47:01,939 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 10:47:01,939 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 10:47:01,940 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 10:47:01,940 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-27 10:47:01,940 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 10:47:01,940 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 10:47:01,941 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 10:47:01,941 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 10:47:01,941 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-27 10:47:01,948 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-10-27 10:47:01,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 10:47:01,956 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 10:47:01,959 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 10:47:01,960 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 10:47:01,960 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 10:47:01,960 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-27 10:47:01,960 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 10:47:01,961 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 10:47:01,961 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-27 10:47:01,961 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 10:47:01,961 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 10:47:02,008 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-10-27 10:47:02,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 10:47:02,018 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 10:47:02,036 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 10:47:02,037 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-27 10:47:02,037 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 10:47:02,038 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-10-27 10:47:02,038 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 10:47:02,038 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 10:47:02,038 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 13 [2020-10-27 10:47:02,039 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 10:47:02,039 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-27 10:47:02,048 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-27 10:47:02,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 10:47:02,055 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 10:47:02,059 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 10:47:02,059 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 10:47:02,060 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 10:47:02,060 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-27 10:47:02,060 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 10:47:02,060 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 10:47:02,061 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 10:47:02,061 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 10:47:02,061 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-27 10:47:02,068 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2020-10-27 10:47:02,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 10:47:02,073 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 10:47:02,076 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 10:47:02,076 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 10:47:02,076 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 10:47:02,076 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-27 10:47:02,076 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-27 10:47:02,077 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 10:47:02,077 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-27 10:47:02,078 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 10:47:02,078 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-27 10:47:02,295 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2020-10-27 10:47:02,296 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1235460064] [2020-10-27 10:47:02,296 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-27 10:47:02,296 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2020-10-27 10:47:02,297 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [548146974] [2020-10-27 10:47:02,297 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-27 10:47:02,298 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 10:47:02,298 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-27 10:47:02,298 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2020-10-27 10:47:02,299 INFO L87 Difference]: Start difference. First operand 1250 states and 1665 transitions. Second operand 10 states. [2020-10-27 10:47:08,642 WARN L193 SmtUtils]: Spent 6.28 s on a formula simplification that was a NOOP. DAG size: 997 [2020-10-27 10:47:18,223 WARN L193 SmtUtils]: Spent 6.06 s on a formula simplification that was a NOOP. DAG size: 1000 [2020-10-27 10:47:24,155 WARN L193 SmtUtils]: Spent 5.86 s on a formula simplification that was a NOOP. DAG size: 991 [2020-10-27 10:47:30,359 WARN L193 SmtUtils]: Spent 6.12 s on a formula simplification that was a NOOP. DAG size: 993