/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --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=WIDESTAMONGSMALL --traceabstraction.additional.smt.options tolerance=0.4 --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 -i ../../../trunk/examples/svcomp/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--isdn--hardware--mISDN--w6692.ko-entry_point.cil.out.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-adbd35c [2020-10-14 16:39:34,201 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-14 16:39:34,204 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-14 16:39:34,244 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-14 16:39:34,245 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-14 16:39:34,252 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-14 16:39:34,254 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-14 16:39:34,258 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-14 16:39:34,260 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-14 16:39:34,263 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-14 16:39:34,264 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-14 16:39:34,265 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-14 16:39:34,265 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-14 16:39:34,268 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-14 16:39:34,270 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-14 16:39:34,272 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-14 16:39:34,273 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-14 16:39:34,274 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-14 16:39:34,275 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-14 16:39:34,284 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-14 16:39:34,286 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-14 16:39:34,287 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-14 16:39:34,288 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-14 16:39:34,289 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-14 16:39:34,300 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-14 16:39:34,301 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-14 16:39:34,301 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-14 16:39:34,302 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-14 16:39:34,302 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-14 16:39:34,303 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-14 16:39:34,308 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-14 16:39:34,309 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-14 16:39:34,309 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-14 16:39:34,310 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-14 16:39:34,314 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-14 16:39:34,314 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-14 16:39:34,315 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-14 16:39:34,315 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-14 16:39:34,315 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-14 16:39:34,316 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-14 16:39:34,317 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-14 16:39:34,317 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 [2020-10-14 16:39:34,358 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-14 16:39:34,359 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-14 16:39:34,360 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-14 16:39:34,360 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-14 16:39:34,360 INFO L138 SettingsManager]: * Use SBE=true [2020-10-14 16:39:34,360 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-14 16:39:34,361 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-14 16:39:34,361 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-14 16:39:34,361 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-14 16:39:34,361 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-14 16:39:34,361 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-14 16:39:34,362 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-14 16:39:34,362 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-14 16:39:34,362 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-14 16:39:34,362 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-14 16:39:34,362 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-14 16:39:34,362 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-14 16:39:34,363 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-14 16:39:34,363 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-14 16:39:34,363 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-14 16:39:34,363 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-14 16:39:34,364 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-14 16:39:34,364 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-14 16:39:34,364 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-14 16:39:34,364 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-14 16:39:34,364 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-14 16:39:34,364 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-10-14 16:39:34,365 INFO L138 SettingsManager]: * To the following directory=dump/ 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=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true;unknown-allowed=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=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true;unknown-allowed=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=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true;unknown-allowed=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=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true;unknown-allowed=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=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true;unknown-allowed=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=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true;unknown-allowed=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=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true;unknown-allowed=true; [2020-10-14 16:39:34,641 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-14 16:39:34,661 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-14 16:39:34,667 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-14 16:39:34,668 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-14 16:39:34,669 INFO L275 PluginConnector]: CDTParser initialized [2020-10-14 16:39:34,670 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--isdn--hardware--mISDN--w6692.ko-entry_point.cil.out.i [2020-10-14 16:39:34,740 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/cfc750863/4be24c140ab048aca848a400c73c41a4/FLAG91e08d493 [2020-10-14 16:39:35,530 INFO L306 CDTParser]: Found 1 translation units. [2020-10-14 16:39:35,531 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--isdn--hardware--mISDN--w6692.ko-entry_point.cil.out.i [2020-10-14 16:39:35,569 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/cfc750863/4be24c140ab048aca848a400c73c41a4/FLAG91e08d493 [2020-10-14 16:39:36,087 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/cfc750863/4be24c140ab048aca848a400c73c41a4 [2020-10-14 16:39:36,097 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-14 16:39:36,099 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-14 16:39:36,100 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-14 16:39:36,100 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-14 16:39:36,104 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-14 16:39:36,105 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 04:39:36" (1/1) ... [2020-10-14 16:39:36,107 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6fcb8091 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 04:39:36, skipping insertion in model container [2020-10-14 16:39:36,108 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 04:39:36" (1/1) ... [2020-10-14 16:39:36,116 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-14 16:39:36,282 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-14 16:39:38,720 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-14 16:39:38,746 INFO L203 MainTranslator]: Completed pre-run [2020-10-14 16:39:39,148 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-14 16:39:39,446 INFO L208 MainTranslator]: Completed translation [2020-10-14 16:39:39,448 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 04:39:39 WrapperNode [2020-10-14 16:39:39,448 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-14 16:39:39,449 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-14 16:39:39,449 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-14 16:39:39,449 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-14 16:39:39,463 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 04:39:39" (1/1) ... [2020-10-14 16:39:39,464 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 04:39:39" (1/1) ... [2020-10-14 16:39:39,568 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 04:39:39" (1/1) ... [2020-10-14 16:39:39,568 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 04:39:39" (1/1) ... [2020-10-14 16:39:39,713 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 04:39:39" (1/1) ... [2020-10-14 16:39:39,741 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 04:39:39" (1/1) ... [2020-10-14 16:39:39,776 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 04:39:39" (1/1) ... [2020-10-14 16:39:39,880 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-14 16:39:39,881 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-14 16:39:39,881 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-14 16:39:39,881 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-14 16:39:39,882 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 04:39:39" (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 [2020-10-14 16:39:39,975 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-14 16:39:39,975 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-14 16:39:39,975 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2020-10-14 16:39:39,975 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~TO~VOID [2020-10-14 16:39:39,976 INFO L138 BoogieDeclarations]: Found implementation of procedure test_and_set_bit [2020-10-14 16:39:39,976 INFO L138 BoogieDeclarations]: Found implementation of procedure test_and_clear_bit [2020-10-14 16:39:39,977 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2020-10-14 16:39:39,977 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-10-14 16:39:39,977 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2020-10-14 16:39:39,978 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2020-10-14 16:39:39,979 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_zalloc [2020-10-14 16:39:39,979 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_memset [2020-10-14 16:39:39,979 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2020-10-14 16:39:39,979 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_ulong [2020-10-14 16:39:39,980 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2020-10-14 16:39:39,980 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2020-10-14 16:39:39,980 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add [2020-10-14 16:39:39,983 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add_tail [2020-10-14 16:39:39,983 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2020-10-14 16:39:39,983 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_5 [2020-10-14 16:39:39,984 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_9 [2020-10-14 16:39:39,984 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irqrestore_12 [2020-10-14 16:39:39,984 INFO L138 BoogieDeclarations]: Found implementation of procedure queue_work [2020-10-14 16:39:39,985 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule_work [2020-10-14 16:39:39,985 INFO L138 BoogieDeclarations]: Found implementation of procedure outb [2020-10-14 16:39:39,985 INFO L138 BoogieDeclarations]: Found implementation of procedure inb [2020-10-14 16:39:39,985 INFO L138 BoogieDeclarations]: Found implementation of procedure outsb [2020-10-14 16:39:39,986 INFO L138 BoogieDeclarations]: Found implementation of procedure insb [2020-10-14 16:39:39,986 INFO L138 BoogieDeclarations]: Found implementation of procedure kobject_name [2020-10-14 16:39:39,986 INFO L138 BoogieDeclarations]: Found implementation of procedure request_irq [2020-10-14 16:39:39,986 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_name [2020-10-14 16:39:39,987 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_get_drvdata [2020-10-14 16:39:39,987 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_set_drvdata [2020-10-14 16:39:39,987 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_get_drvdata [2020-10-14 16:39:39,987 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_drvdata [2020-10-14 16:39:39,987 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_name [2020-10-14 16:39:39,988 INFO L138 BoogieDeclarations]: Found implementation of procedure set_channelmap [2020-10-14 16:39:39,988 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_reserve [2020-10-14 16:39:39,988 INFO L138 BoogieDeclarations]: Found implementation of procedure mI_alloc_skb [2020-10-14 16:39:39,988 INFO L138 BoogieDeclarations]: Found implementation of procedure _alloc_mISDN_skb [2020-10-14 16:39:39,988 INFO L138 BoogieDeclarations]: Found implementation of procedure _queue_data [2020-10-14 16:39:39,989 INFO L138 BoogieDeclarations]: Found implementation of procedure _set_debug [2020-10-14 16:39:39,989 INFO L138 BoogieDeclarations]: Found implementation of procedure set_debug [2020-10-14 16:39:39,989 INFO L138 BoogieDeclarations]: Found implementation of procedure ReadW6692 [2020-10-14 16:39:39,990 INFO L138 BoogieDeclarations]: Found implementation of procedure WriteW6692 [2020-10-14 16:39:39,990 INFO L138 BoogieDeclarations]: Found implementation of procedure ReadW6692B [2020-10-14 16:39:39,990 INFO L138 BoogieDeclarations]: Found implementation of procedure WriteW6692B [2020-10-14 16:39:39,990 INFO L138 BoogieDeclarations]: Found implementation of procedure enable_hwirq [2020-10-14 16:39:39,990 INFO L138 BoogieDeclarations]: Found implementation of procedure disable_hwirq [2020-10-14 16:39:39,991 INFO L138 BoogieDeclarations]: Found implementation of procedure W6692Version [2020-10-14 16:39:39,991 INFO L138 BoogieDeclarations]: Found implementation of procedure w6692_led_handler [2020-10-14 16:39:39,991 INFO L138 BoogieDeclarations]: Found implementation of procedure ph_command [2020-10-14 16:39:39,991 INFO L138 BoogieDeclarations]: Found implementation of procedure W6692_new_ph [2020-10-14 16:39:39,992 INFO L138 BoogieDeclarations]: Found implementation of procedure W6692_ph_bh [2020-10-14 16:39:39,992 INFO L138 BoogieDeclarations]: Found implementation of procedure W6692_empty_Dfifo [2020-10-14 16:39:39,992 INFO L138 BoogieDeclarations]: Found implementation of procedure W6692_fill_Dfifo [2020-10-14 16:39:39,992 INFO L138 BoogieDeclarations]: Found implementation of procedure d_retransmit [2020-10-14 16:39:39,993 INFO L138 BoogieDeclarations]: Found implementation of procedure handle_rxD [2020-10-14 16:39:39,993 INFO L138 BoogieDeclarations]: Found implementation of procedure handle_txD [2020-10-14 16:39:39,993 INFO L138 BoogieDeclarations]: Found implementation of procedure handle_statusD [2020-10-14 16:39:39,993 INFO L138 BoogieDeclarations]: Found implementation of procedure W6692_empty_Bfifo [2020-10-14 16:39:39,993 INFO L138 BoogieDeclarations]: Found implementation of procedure W6692_fill_Bfifo [2020-10-14 16:39:39,994 INFO L138 BoogieDeclarations]: Found implementation of procedure disable_pots [2020-10-14 16:39:39,994 INFO L138 BoogieDeclarations]: Found implementation of procedure w6692_mode [2020-10-14 16:39:39,994 INFO L138 BoogieDeclarations]: Found implementation of procedure send_next [2020-10-14 16:39:39,994 INFO L138 BoogieDeclarations]: Found implementation of procedure W6692B_interrupt [2020-10-14 16:39:39,994 INFO L138 BoogieDeclarations]: Found implementation of procedure w6692_irq [2020-10-14 16:39:39,995 INFO L138 BoogieDeclarations]: Found implementation of procedure dbusy_timer_handler [2020-10-14 16:39:39,996 INFO L138 BoogieDeclarations]: Found implementation of procedure initW6692 [2020-10-14 16:39:39,996 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_w6692 [2020-10-14 16:39:39,997 INFO L138 BoogieDeclarations]: Found implementation of procedure init_card [2020-10-14 16:39:39,997 INFO L138 BoogieDeclarations]: Found implementation of procedure w6692_l2l1B [2020-10-14 16:39:39,997 INFO L138 BoogieDeclarations]: Found implementation of procedure channel_bctrl [2020-10-14 16:39:39,998 INFO L138 BoogieDeclarations]: Found implementation of procedure open_bchannel [2020-10-14 16:39:39,999 INFO L138 BoogieDeclarations]: Found implementation of procedure channel_ctrl [2020-10-14 16:39:39,999 INFO L138 BoogieDeclarations]: Found implementation of procedure w6692_bctrl [2020-10-14 16:39:39,999 INFO L138 BoogieDeclarations]: Found implementation of procedure w6692_l2l1D [2020-10-14 16:39:39,999 INFO L138 BoogieDeclarations]: Found implementation of procedure w6692_l1callback [2020-10-14 16:39:39,999 INFO L138 BoogieDeclarations]: Found implementation of procedure open_dchannel [2020-10-14 16:39:39,999 INFO L138 BoogieDeclarations]: Found implementation of procedure w6692_dctrl [2020-10-14 16:39:39,999 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_w6692 [2020-10-14 16:39:40,000 INFO L138 BoogieDeclarations]: Found implementation of procedure release_card [2020-10-14 16:39:40,000 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_instance [2020-10-14 16:39:40,001 INFO L138 BoogieDeclarations]: Found implementation of procedure w6692_probe [2020-10-14 16:39:40,001 INFO L138 BoogieDeclarations]: Found implementation of procedure w6692_remove_pci [2020-10-14 16:39:40,001 INFO L138 BoogieDeclarations]: Found implementation of procedure w6692_init [2020-10-14 16:39:40,001 INFO L138 BoogieDeclarations]: Found implementation of procedure w6692_cleanup [2020-10-14 16:39:40,001 INFO L138 BoogieDeclarations]: Found implementation of procedure disable_suitable_timer_3 [2020-10-14 16:39:40,001 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize_kernel_param_ops_5 [2020-10-14 16:39:40,001 INFO L138 BoogieDeclarations]: Found implementation of procedure choose_timer_2 [2020-10-14 16:39:40,001 INFO L138 BoogieDeclarations]: Found implementation of procedure reg_timer_2 [2020-10-14 16:39:40,002 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_pending_timer_2 [2020-10-14 16:39:40,002 INFO L138 BoogieDeclarations]: Found implementation of procedure choose_timer_3 [2020-10-14 16:39:40,002 INFO L138 BoogieDeclarations]: Found implementation of procedure disable_suitable_timer_2 [2020-10-14 16:39:40,002 INFO L138 BoogieDeclarations]: Found implementation of procedure disable_suitable_irq_1 [2020-10-14 16:39:40,002 INFO L138 BoogieDeclarations]: Found implementation of procedure reg_check_1 [2020-10-14 16:39:40,002 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_suitable_irq_1 [2020-10-14 16:39:40,002 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_irq_1 [2020-10-14 16:39:40,003 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_pending_timer_3 [2020-10-14 16:39:40,003 INFO L138 BoogieDeclarations]: Found implementation of procedure reg_timer_3 [2020-10-14 16:39:40,003 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_pci_driver_4 [2020-10-14 16:39:40,003 INFO L138 BoogieDeclarations]: Found implementation of procedure choose_interrupt_1 [2020-10-14 16:39:40,003 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-14 16:39:40,004 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2020-10-14 16:39:40,004 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2020-10-14 16:39:40,004 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2020-10-14 16:39:40,004 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2020-10-14 16:39:40,004 INFO L138 BoogieDeclarations]: Found implementation of procedure alloc_skb [2020-10-14 16:39:40,004 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_pskb_expand_head_26 [2020-10-14 16:39:40,004 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_skb_clone_28 [2020-10-14 16:39:40,005 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_skb_copy_30 [2020-10-14 16:39:40,005 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv___netdev_alloc_skb_31 [2020-10-14 16:39:40,005 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv___netdev_alloc_skb_32 [2020-10-14 16:39:40,005 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv___netdev_alloc_skb_33 [2020-10-14 16:39:40,006 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_pskb_expand_head_34 [2020-10-14 16:39:40,006 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_pskb_expand_head_35 [2020-10-14 16:39:40,007 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_skb_clone_36 [2020-10-14 16:39:40,007 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_del_timer_37 [2020-10-14 16:39:40,007 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_del_timer_38 [2020-10-14 16:39:40,007 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_del_timer_39 [2020-10-14 16:39:40,008 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_request_irq_40 [2020-10-14 16:39:40,008 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_irq_41 [2020-10-14 16:39:40,008 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_del_timer_42 [2020-10-14 16:39:40,009 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_irq_43 [2020-10-14 16:39:40,009 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_irq_44 [2020-10-14 16:39:40,010 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv___pci_register_driver_45 [2020-10-14 16:39:40,010 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_pci_unregister_driver_46 [2020-10-14 16:39:40,011 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2020-10-14 16:39:40,015 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2020-10-14 16:39:40,015 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_err_ptr [2020-10-14 16:39:40,015 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_ptr_err [2020-10-14 16:39:40,016 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err_or_null [2020-10-14 16:39:40,016 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags [2020-10-14 16:39:40,016 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags_and_return_some_page [2020-10-14 16:39:40,017 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_nonatomic [2020-10-14 16:39:40,017 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock [2020-10-14 16:39:40,017 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock [2020-10-14 16:39:40,018 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_trylock [2020-10-14 16:39:40,018 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2020-10-14 16:39:40,018 INFO L138 BoogieDeclarations]: Found implementation of procedure __dynamic_pr_debug [2020-10-14 16:39:40,018 INFO L138 BoogieDeclarations]: Found implementation of procedure __list_add [2020-10-14 16:39:40,018 INFO L138 BoogieDeclarations]: Found implementation of procedure __pci_register_driver [2020-10-14 16:39:40,019 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2020-10-14 16:39:40,019 INFO L138 BoogieDeclarations]: Found implementation of procedure __release_region [2020-10-14 16:39:40,020 INFO L138 BoogieDeclarations]: Found implementation of procedure __request_region [2020-10-14 16:39:40,026 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_read_lock [2020-10-14 16:39:40,026 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_read_unlock [2020-10-14 16:39:40,026 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock [2020-10-14 16:39:40,027 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_unlock [2020-10-14 16:39:40,027 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_unlock_irqrestore [2020-10-14 16:39:40,028 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_write_lock_irqsave [2020-10-14 16:39:40,028 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_write_unlock_irqrestore [2020-10-14 16:39:40,028 INFO L138 BoogieDeclarations]: Found implementation of procedure add_timer [2020-10-14 16:39:40,028 INFO L138 BoogieDeclarations]: Found implementation of procedure bchannel_get_rxbuf [2020-10-14 16:39:40,029 INFO L138 BoogieDeclarations]: Found implementation of procedure bchannel_senddata [2020-10-14 16:39:40,029 INFO L138 BoogieDeclarations]: Found implementation of procedure cancel_work_sync [2020-10-14 16:39:40,029 INFO L138 BoogieDeclarations]: Found implementation of procedure consume_skb [2020-10-14 16:39:40,029 INFO L138 BoogieDeclarations]: Found implementation of procedure create_l1 [2020-10-14 16:39:40,029 INFO L138 BoogieDeclarations]: Found implementation of procedure dchannel_senddata [2020-10-14 16:39:40,029 INFO L138 BoogieDeclarations]: Found implementation of procedure del_timer [2020-10-14 16:39:40,029 INFO L138 BoogieDeclarations]: Found implementation of procedure free_irq [2020-10-14 16:39:40,030 INFO L138 BoogieDeclarations]: Found implementation of procedure get_next_bframe [2020-10-14 16:39:40,030 INFO L138 BoogieDeclarations]: Found implementation of procedure get_next_dframe [2020-10-14 16:39:40,030 INFO L138 BoogieDeclarations]: Found implementation of procedure l1_event [2020-10-14 16:39:40,030 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2020-10-14 16:39:40,030 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize [2020-10-14 16:39:40,030 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_shutdown_4 [2020-10-14 16:39:40,030 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_some_page [2020-10-14 16:39:40,031 INFO L138 BoogieDeclarations]: Found implementation of procedure list_del [2020-10-14 16:39:40,031 INFO L138 BoogieDeclarations]: Found implementation of procedure mISDN_clear_bchannel [2020-10-14 16:39:40,031 INFO L138 BoogieDeclarations]: Found implementation of procedure mISDN_ctrl_bchannel [2020-10-14 16:39:40,031 INFO L138 BoogieDeclarations]: Found implementation of procedure mISDN_freebchannel [2020-10-14 16:39:40,031 INFO L138 BoogieDeclarations]: Found implementation of procedure mISDN_freedchannel [2020-10-14 16:39:40,031 INFO L138 BoogieDeclarations]: Found implementation of procedure mISDN_initbchannel [2020-10-14 16:39:40,031 INFO L138 BoogieDeclarations]: Found implementation of procedure mISDN_initdchannel [2020-10-14 16:39:40,031 INFO L138 BoogieDeclarations]: Found implementation of procedure mISDN_register_device [2020-10-14 16:39:40,031 INFO L138 BoogieDeclarations]: Found implementation of procedure mISDN_unregister_device [2020-10-14 16:39:40,032 INFO L138 BoogieDeclarations]: Found implementation of procedure module_put [2020-10-14 16:39:40,032 INFO L138 BoogieDeclarations]: Found implementation of procedure msleep_interruptible [2020-10-14 16:39:40,032 INFO L138 BoogieDeclarations]: Found implementation of procedure param_get_uint [2020-10-14 16:39:40,032 INFO L138 BoogieDeclarations]: Found implementation of procedure param_set_uint [2020-10-14 16:39:40,032 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_device [2020-10-14 16:39:40,032 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_enable_device [2020-10-14 16:39:40,032 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_unregister_driver [2020-10-14 16:39:40,032 INFO L138 BoogieDeclarations]: Found implementation of procedure print_hex_dump [2020-10-14 16:39:40,032 INFO L138 BoogieDeclarations]: Found implementation of procedure printk [2020-10-14 16:39:40,033 INFO L138 BoogieDeclarations]: Found implementation of procedure queue_ch_frame [2020-10-14 16:39:40,033 INFO L138 BoogieDeclarations]: Found implementation of procedure queue_work_on [2020-10-14 16:39:40,033 INFO L138 BoogieDeclarations]: Found implementation of procedure recv_Bchannel [2020-10-14 16:39:40,033 INFO L138 BoogieDeclarations]: Found implementation of procedure recv_Dchannel [2020-10-14 16:39:40,033 INFO L138 BoogieDeclarations]: Found implementation of procedure request_threaded_irq [2020-10-14 16:39:40,033 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_put [2020-10-14 16:39:40,033 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_queue_purge [2020-10-14 16:39:40,033 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_trim [2020-10-14 16:39:40,034 INFO L138 BoogieDeclarations]: Found implementation of procedure try_module_get [2020-10-14 16:39:40,034 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2020-10-14 16:39:40,034 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2020-10-14 16:39:40,034 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2020-10-14 16:39:40,034 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2020-10-14 16:39:40,034 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-10-14 16:39:40,035 INFO L130 BoogieDeclarations]: Found specification of procedure __builtin_return_address [2020-10-14 16:39:40,035 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2020-10-14 16:39:40,035 INFO L130 BoogieDeclarations]: Found specification of procedure test_and_set_bit [2020-10-14 16:39:40,035 INFO L130 BoogieDeclarations]: Found specification of procedure test_and_clear_bit [2020-10-14 16:39:40,035 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2020-10-14 16:39:40,035 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-14 16:39:40,035 INFO L130 BoogieDeclarations]: Found specification of procedure printk [2020-10-14 16:39:40,035 INFO L130 BoogieDeclarations]: Found specification of procedure __dynamic_pr_debug [2020-10-14 16:39:40,036 INFO L130 BoogieDeclarations]: Found specification of procedure print_hex_dump [2020-10-14 16:39:40,036 INFO L130 BoogieDeclarations]: Found specification of procedure snprintf [2020-10-14 16:39:40,036 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock [2020-10-14 16:39:40,036 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock [2020-10-14 16:39:40,036 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-10-14 16:39:40,036 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2020-10-14 16:39:40,036 INFO L130 BoogieDeclarations]: Found specification of procedure memset [2020-10-14 16:39:40,036 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-14 16:39:40,037 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_ulong [2020-10-14 16:39:40,037 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-14 16:39:40,037 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-10-14 16:39:40,037 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2020-10-14 16:39:40,037 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-10-14 16:39:40,037 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2020-10-14 16:39:40,037 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2020-10-14 16:39:40,037 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_zalloc [2020-10-14 16:39:40,038 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_memset [2020-10-14 16:39:40,038 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2020-10-14 16:39:40,038 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2020-10-14 16:39:40,038 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_ulong [2020-10-14 16:39:40,038 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2020-10-14 16:39:40,038 INFO L130 BoogieDeclarations]: Found specification of procedure __list_add [2020-10-14 16:39:40,038 INFO L130 BoogieDeclarations]: Found specification of procedure list_add [2020-10-14 16:39:40,038 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-10-14 16:39:40,039 INFO L130 BoogieDeclarations]: Found specification of procedure list_add_tail [2020-10-14 16:39:40,039 INFO L130 BoogieDeclarations]: Found specification of procedure list_del [2020-10-14 16:39:40,039 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy [2020-10-14 16:39:40,039 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2020-10-14 16:39:40,039 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock [2020-10-14 16:39:40,039 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_unlock [2020-10-14 16:39:40,039 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_unlock_irqrestore [2020-10-14 16:39:40,039 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_read_lock [2020-10-14 16:39:40,040 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_write_lock_irqsave [2020-10-14 16:39:40,040 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_read_unlock [2020-10-14 16:39:40,040 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_write_unlock_irqrestore [2020-10-14 16:39:40,040 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2020-10-14 16:39:40,040 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_5 [2020-10-14 16:39:40,040 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2020-10-14 16:39:40,040 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_9 [2020-10-14 16:39:40,041 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2020-10-14 16:39:40,041 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irqrestore_12 [2020-10-14 16:39:40,041 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2020-10-14 16:39:40,041 INFO L130 BoogieDeclarations]: Found specification of procedure del_timer [2020-10-14 16:39:40,041 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_del_timer_37 [2020-10-14 16:39:40,041 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_del_timer_38 [2020-10-14 16:39:40,041 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_del_timer_39 [2020-10-14 16:39:40,042 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_del_timer_42 [2020-10-14 16:39:40,046 INFO L130 BoogieDeclarations]: Found specification of procedure add_timer [2020-10-14 16:39:40,047 INFO L130 BoogieDeclarations]: Found specification of procedure queue_work_on [2020-10-14 16:39:40,047 INFO L130 BoogieDeclarations]: Found specification of procedure cancel_work_sync [2020-10-14 16:39:40,047 INFO L130 BoogieDeclarations]: Found specification of procedure queue_work [2020-10-14 16:39:40,047 INFO L130 BoogieDeclarations]: Found specification of procedure schedule_work [2020-10-14 16:39:40,047 INFO L130 BoogieDeclarations]: Found specification of procedure __request_region [2020-10-14 16:39:40,048 INFO L130 BoogieDeclarations]: Found specification of procedure __release_region [2020-10-14 16:39:40,048 INFO L130 BoogieDeclarations]: Found specification of procedure outb [2020-10-14 16:39:40,048 INFO L130 BoogieDeclarations]: Found specification of procedure inb [2020-10-14 16:39:40,048 INFO L130 BoogieDeclarations]: Found specification of procedure outsb [2020-10-14 16:39:40,048 INFO L130 BoogieDeclarations]: Found specification of procedure insb [2020-10-14 16:39:40,048 INFO L130 BoogieDeclarations]: Found specification of procedure kobject_name [2020-10-14 16:39:40,048 INFO L130 BoogieDeclarations]: Found specification of procedure param_set_uint [2020-10-14 16:39:40,049 INFO L130 BoogieDeclarations]: Found specification of procedure param_get_uint [2020-10-14 16:39:40,049 INFO L130 BoogieDeclarations]: Found specification of procedure try_module_get [2020-10-14 16:39:40,049 INFO L130 BoogieDeclarations]: Found specification of procedure module_put [2020-10-14 16:39:40,049 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2020-10-14 16:39:40,050 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2020-10-14 16:39:40,052 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags [2020-10-14 16:39:40,052 INFO L130 BoogieDeclarations]: Found specification of procedure disable_suitable_timer_3 [2020-10-14 16:39:40,052 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize_kernel_param_ops_5 [2020-10-14 16:39:40,052 INFO L130 BoogieDeclarations]: Found specification of procedure choose_timer_2 [2020-10-14 16:39:40,052 INFO L130 BoogieDeclarations]: Found specification of procedure reg_timer_2 [2020-10-14 16:39:40,052 INFO L130 BoogieDeclarations]: Found specification of procedure activate_pending_timer_2 [2020-10-14 16:39:40,052 INFO L130 BoogieDeclarations]: Found specification of procedure choose_timer_3 [2020-10-14 16:39:40,053 INFO L130 BoogieDeclarations]: Found specification of procedure disable_suitable_timer_2 [2020-10-14 16:39:40,053 INFO L130 BoogieDeclarations]: Found specification of procedure disable_suitable_irq_1 [2020-10-14 16:39:40,053 INFO L130 BoogieDeclarations]: Found specification of procedure reg_check_1 [2020-10-14 16:39:40,053 INFO L130 BoogieDeclarations]: Found specification of procedure activate_suitable_irq_1 [2020-10-14 16:39:40,053 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_irq_1 [2020-10-14 16:39:40,053 INFO L130 BoogieDeclarations]: Found specification of procedure activate_pending_timer_3 [2020-10-14 16:39:40,053 INFO L130 BoogieDeclarations]: Found specification of procedure reg_timer_3 [2020-10-14 16:39:40,053 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_pci_driver_4 [2020-10-14 16:39:40,053 INFO L130 BoogieDeclarations]: Found specification of procedure choose_interrupt_1 [2020-10-14 16:39:40,054 INFO L130 BoogieDeclarations]: Found specification of procedure request_threaded_irq [2020-10-14 16:39:40,054 INFO L130 BoogieDeclarations]: Found specification of procedure request_irq [2020-10-14 16:39:40,054 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_request_irq_40 [2020-10-14 16:39:40,054 INFO L130 BoogieDeclarations]: Found specification of procedure free_irq [2020-10-14 16:39:40,054 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_irq_41 [2020-10-14 16:39:40,054 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_irq_43 [2020-10-14 16:39:40,054 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_irq_44 [2020-10-14 16:39:40,054 INFO L130 BoogieDeclarations]: Found specification of procedure dev_name [2020-10-14 16:39:40,054 INFO L130 BoogieDeclarations]: Found specification of procedure dev_get_drvdata [2020-10-14 16:39:40,055 INFO L130 BoogieDeclarations]: Found specification of procedure dev_set_drvdata [2020-10-14 16:39:40,055 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-10-14 16:39:40,055 INFO L130 BoogieDeclarations]: Found specification of procedure pci_enable_device [2020-10-14 16:39:40,055 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_device [2020-10-14 16:39:40,055 INFO L130 BoogieDeclarations]: Found specification of procedure __pci_register_driver [2020-10-14 16:39:40,055 INFO L130 BoogieDeclarations]: Found specification of procedure ldv___pci_register_driver_45 [2020-10-14 16:39:40,055 INFO L130 BoogieDeclarations]: Found specification of procedure pci_unregister_driver [2020-10-14 16:39:40,055 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_pci_unregister_driver_46 [2020-10-14 16:39:40,056 INFO L130 BoogieDeclarations]: Found specification of procedure pci_get_drvdata [2020-10-14 16:39:40,056 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_drvdata [2020-10-14 16:39:40,056 INFO L130 BoogieDeclarations]: Found specification of procedure pci_name [2020-10-14 16:39:40,056 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2020-10-14 16:39:40,056 INFO L130 BoogieDeclarations]: Found specification of procedure msleep_interruptible [2020-10-14 16:39:40,056 INFO L130 BoogieDeclarations]: Found specification of procedure set_channelmap [2020-10-14 16:39:40,056 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-14 16:39:40,056 INFO L130 BoogieDeclarations]: Found specification of procedure consume_skb [2020-10-14 16:39:40,056 INFO L130 BoogieDeclarations]: Found specification of procedure alloc_skb [2020-10-14 16:39:40,057 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_skb_clone_28 [2020-10-14 16:39:40,057 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_skb_clone_36 [2020-10-14 16:39:40,057 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_skb_copy_30 [2020-10-14 16:39:40,057 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_pskb_expand_head_26 [2020-10-14 16:39:40,057 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_pskb_expand_head_34 [2020-10-14 16:39:40,057 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_pskb_expand_head_35 [2020-10-14 16:39:40,057 INFO L130 BoogieDeclarations]: Found specification of procedure skb_put [2020-10-14 16:39:40,057 INFO L130 BoogieDeclarations]: Found specification of procedure skb_reserve [2020-10-14 16:39:40,057 INFO L130 BoogieDeclarations]: Found specification of procedure skb_trim [2020-10-14 16:39:40,058 INFO L130 BoogieDeclarations]: Found specification of procedure skb_queue_purge [2020-10-14 16:39:40,058 INFO L130 BoogieDeclarations]: Found specification of procedure ldv___netdev_alloc_skb_31 [2020-10-14 16:39:40,058 INFO L130 BoogieDeclarations]: Found specification of procedure ldv___netdev_alloc_skb_32 [2020-10-14 16:39:40,058 INFO L130 BoogieDeclarations]: Found specification of procedure ldv___netdev_alloc_skb_33 [2020-10-14 16:39:40,058 INFO L130 BoogieDeclarations]: Found specification of procedure mI_alloc_skb [2020-10-14 16:39:40,058 INFO L130 BoogieDeclarations]: Found specification of procedure _alloc_mISDN_skb [2020-10-14 16:39:40,058 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2020-10-14 16:39:40,058 INFO L130 BoogieDeclarations]: Found specification of procedure _queue_data [2020-10-14 16:39:40,058 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2020-10-14 16:39:40,059 INFO L130 BoogieDeclarations]: Found specification of procedure mISDN_register_device [2020-10-14 16:39:40,059 INFO L130 BoogieDeclarations]: Found specification of procedure mISDN_unregister_device [2020-10-14 16:39:40,059 INFO L130 BoogieDeclarations]: Found specification of procedure create_l1 [2020-10-14 16:39:40,059 INFO L130 BoogieDeclarations]: Found specification of procedure l1_event [2020-10-14 16:39:40,059 INFO L130 BoogieDeclarations]: Found specification of procedure mISDN_initdchannel [2020-10-14 16:39:40,059 INFO L130 BoogieDeclarations]: Found specification of procedure mISDN_initbchannel [2020-10-14 16:39:40,059 INFO L130 BoogieDeclarations]: Found specification of procedure mISDN_freedchannel [2020-10-14 16:39:40,059 INFO L130 BoogieDeclarations]: Found specification of procedure mISDN_clear_bchannel [2020-10-14 16:39:40,059 INFO L130 BoogieDeclarations]: Found specification of procedure mISDN_freebchannel [2020-10-14 16:39:40,060 INFO L130 BoogieDeclarations]: Found specification of procedure mISDN_ctrl_bchannel [2020-10-14 16:39:40,060 INFO L130 BoogieDeclarations]: Found specification of procedure queue_ch_frame [2020-10-14 16:39:40,060 INFO L130 BoogieDeclarations]: Found specification of procedure dchannel_senddata [2020-10-14 16:39:40,060 INFO L130 BoogieDeclarations]: Found specification of procedure bchannel_senddata [2020-10-14 16:39:40,060 INFO L130 BoogieDeclarations]: Found specification of procedure bchannel_get_rxbuf [2020-10-14 16:39:40,060 INFO L130 BoogieDeclarations]: Found specification of procedure recv_Dchannel [2020-10-14 16:39:40,060 INFO L130 BoogieDeclarations]: Found specification of procedure recv_Bchannel [2020-10-14 16:39:40,060 INFO L130 BoogieDeclarations]: Found specification of procedure get_next_bframe [2020-10-14 16:39:40,060 INFO L130 BoogieDeclarations]: Found specification of procedure get_next_dframe [2020-10-14 16:39:40,061 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-14 16:39:40,061 INFO L130 BoogieDeclarations]: Found specification of procedure _set_debug [2020-10-14 16:39:40,061 INFO L130 BoogieDeclarations]: Found specification of procedure set_debug [2020-10-14 16:39:40,061 INFO L130 BoogieDeclarations]: Found specification of procedure ReadW6692 [2020-10-14 16:39:40,061 INFO L130 BoogieDeclarations]: Found specification of procedure WriteW6692 [2020-10-14 16:39:40,061 INFO L130 BoogieDeclarations]: Found specification of procedure ReadW6692B [2020-10-14 16:39:40,061 INFO L130 BoogieDeclarations]: Found specification of procedure WriteW6692B [2020-10-14 16:39:40,061 INFO L130 BoogieDeclarations]: Found specification of procedure enable_hwirq [2020-10-14 16:39:40,062 INFO L130 BoogieDeclarations]: Found specification of procedure disable_hwirq [2020-10-14 16:39:40,062 INFO L130 BoogieDeclarations]: Found specification of procedure W6692Version [2020-10-14 16:39:40,062 INFO L130 BoogieDeclarations]: Found specification of procedure w6692_led_handler [2020-10-14 16:39:40,062 INFO L130 BoogieDeclarations]: Found specification of procedure ph_command [2020-10-14 16:39:40,062 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-14 16:39:40,062 INFO L130 BoogieDeclarations]: Found specification of procedure W6692_new_ph [2020-10-14 16:39:40,062 INFO L130 BoogieDeclarations]: Found specification of procedure W6692_ph_bh [2020-10-14 16:39:40,062 INFO L130 BoogieDeclarations]: Found specification of procedure W6692_empty_Dfifo [2020-10-14 16:39:40,062 INFO L130 BoogieDeclarations]: Found specification of procedure W6692_fill_Dfifo [2020-10-14 16:39:40,063 INFO L130 BoogieDeclarations]: Found specification of procedure d_retransmit [2020-10-14 16:39:40,063 INFO L130 BoogieDeclarations]: Found specification of procedure handle_rxD [2020-10-14 16:39:40,063 INFO L130 BoogieDeclarations]: Found specification of procedure handle_txD [2020-10-14 16:39:40,063 INFO L130 BoogieDeclarations]: Found specification of procedure handle_statusD [2020-10-14 16:39:40,063 INFO L130 BoogieDeclarations]: Found specification of procedure W6692_empty_Bfifo [2020-10-14 16:39:40,063 INFO L130 BoogieDeclarations]: Found specification of procedure W6692_fill_Bfifo [2020-10-14 16:39:40,063 INFO L130 BoogieDeclarations]: Found specification of procedure disable_pots [2020-10-14 16:39:40,064 INFO L130 BoogieDeclarations]: Found specification of procedure w6692_mode [2020-10-14 16:39:40,064 INFO L130 BoogieDeclarations]: Found specification of procedure send_next [2020-10-14 16:39:40,064 INFO L130 BoogieDeclarations]: Found specification of procedure W6692B_interrupt [2020-10-14 16:39:40,064 INFO L130 BoogieDeclarations]: Found specification of procedure w6692_irq [2020-10-14 16:39:40,064 INFO L130 BoogieDeclarations]: Found specification of procedure dbusy_timer_handler [2020-10-14 16:39:40,064 INFO L130 BoogieDeclarations]: Found specification of procedure initW6692 [2020-10-14 16:39:40,064 INFO L130 BoogieDeclarations]: Found specification of procedure reset_w6692 [2020-10-14 16:39:40,064 INFO L130 BoogieDeclarations]: Found specification of procedure init_card [2020-10-14 16:39:40,064 INFO L130 BoogieDeclarations]: Found specification of procedure w6692_l2l1B [2020-10-14 16:39:40,065 INFO L130 BoogieDeclarations]: Found specification of procedure channel_bctrl [2020-10-14 16:39:40,065 INFO L130 BoogieDeclarations]: Found specification of procedure open_bchannel [2020-10-14 16:39:40,065 INFO L130 BoogieDeclarations]: Found specification of procedure channel_ctrl [2020-10-14 16:39:40,066 INFO L130 BoogieDeclarations]: Found specification of procedure w6692_bctrl [2020-10-14 16:39:40,066 INFO L130 BoogieDeclarations]: Found specification of procedure w6692_l2l1D [2020-10-14 16:39:40,066 INFO L130 BoogieDeclarations]: Found specification of procedure w6692_l1callback [2020-10-14 16:39:40,066 INFO L130 BoogieDeclarations]: Found specification of procedure open_dchannel [2020-10-14 16:39:40,066 INFO L130 BoogieDeclarations]: Found specification of procedure w6692_dctrl [2020-10-14 16:39:40,066 INFO L130 BoogieDeclarations]: Found specification of procedure setup_w6692 [2020-10-14 16:39:40,067 INFO L130 BoogieDeclarations]: Found specification of procedure release_card [2020-10-14 16:39:40,067 INFO L130 BoogieDeclarations]: Found specification of procedure setup_instance [2020-10-14 16:39:40,067 INFO L130 BoogieDeclarations]: Found specification of procedure w6692_probe [2020-10-14 16:39:40,067 INFO L130 BoogieDeclarations]: Found specification of procedure w6692_remove_pci [2020-10-14 16:39:40,068 INFO L130 BoogieDeclarations]: Found specification of procedure w6692_init [2020-10-14 16:39:40,069 INFO L130 BoogieDeclarations]: Found specification of procedure w6692_cleanup [2020-10-14 16:39:40,069 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize [2020-10-14 16:39:40,069 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2020-10-14 16:39:40,069 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_shutdown_4 [2020-10-14 16:39:40,070 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~TO~VOID [2020-10-14 16:39:40,070 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-14 16:39:40,070 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2020-10-14 16:39:40,070 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2020-10-14 16:39:40,070 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_err_ptr [2020-10-14 16:39:40,070 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_ptr_err [2020-10-14 16:39:40,070 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err_or_null [2020-10-14 16:39:40,070 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_some_page [2020-10-14 16:39:40,071 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags_and_return_some_page [2020-10-14 16:39:40,071 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_nonatomic [2020-10-14 16:39:40,071 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_trylock [2020-10-14 16:39:40,071 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_bool [2020-10-14 16:39:40,071 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-10-14 16:39:40,071 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-14 16:39:40,071 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-14 16:39:40,072 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2020-10-14 16:39:40,072 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-14 16:39:40,072 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2020-10-14 16:39:40,072 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2020-10-14 16:39:40,072 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2020-10-14 16:39:40,072 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2020-10-14 16:39:41,242 INFO L732 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2020-10-14 16:39:55,717 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-14 16:39:55,717 INFO L295 CfgBuilder]: Removed 0 assume(true) statements. [2020-10-14 16:39:55,735 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 04:39:55 BoogieIcfgContainer [2020-10-14 16:39:55,735 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-14 16:39:55,736 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-14 16:39:55,736 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-14 16:39:55,741 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-14 16:39:55,741 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.10 04:39:36" (1/3) ... [2020-10-14 16:39:55,742 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7ae1b238 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 04:39:55, skipping insertion in model container [2020-10-14 16:39:55,742 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 04:39:39" (2/3) ... [2020-10-14 16:39:55,742 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7ae1b238 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 04:39:55, skipping insertion in model container [2020-10-14 16:39:55,743 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 04:39:55" (3/3) ... [2020-10-14 16:39:55,744 INFO L109 eAbstractionObserver]: Analyzing ICFG linux-4.2-rc1.tar.xz-43_2a-drivers--isdn--hardware--mISDN--w6692.ko-entry_point.cil.out.i [2020-10-14 16:39:55,755 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-14 16:39:55,765 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-14 16:39:55,779 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-14 16:39:55,809 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-10-14 16:39:55,809 INFO L376 AbstractCegarLoop]: Hoare is true [2020-10-14 16:39:55,809 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-14 16:39:55,809 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-14 16:39:55,809 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-14 16:39:55,809 INFO L380 AbstractCegarLoop]: Difference is false [2020-10-14 16:39:55,810 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-14 16:39:55,810 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-14 16:39:55,858 INFO L276 IsEmpty]: Start isEmpty. Operand 1662 states. [2020-10-14 16:39:55,868 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2020-10-14 16:39:55,869 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 16:39:55,870 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2020-10-14 16:39:55,871 INFO L427 AbstractCegarLoop]: === Iteration 1 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 16:39:55,878 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 16:39:55,878 INFO L82 PathProgramCache]: Analyzing trace with hash 1308443734, now seen corresponding path program 1 times [2020-10-14 16:39:55,889 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 16:39:55,889 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [94650580] [2020-10-14 16:39:55,889 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 16:39:57,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 16:39:57,708 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 16:39:58,338 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 16:39:59,091 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 16:40:02,626 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 16:40:02,627 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 106 [2020-10-14 16:40:02,627 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-14 16:40:02,627 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5402 [2020-10-14 16:40:02,630 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 16:40:02,630 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 16:40:02,630 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 16:40:02,630 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 27 [2020-10-14 16:40:02,631 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 16:40:02,631 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-14 16:40:21,093 WARN L193 SmtUtils]: Spent 18.02 s on a formula simplification that was a NOOP. DAG size: 1888 [2020-10-14 16:40:21,099 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 16:40:21,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 16:40:21,185 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 16:40:23,764 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 16:40:23,764 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 16:40:23,765 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 16:40:23,765 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2606 [2020-10-14 16:40:23,765 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 16:40:23,765 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 16:40:23,766 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 16:40:23,766 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 16:40:23,766 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 16:40:23,766 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 16:40:24,186 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 16:40:24,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 16:40:24,210 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 16:40:24,258 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 16:40:24,258 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-10-14 16:40:24,259 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 16:40:24,259 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 61 [2020-10-14 16:40:24,259 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 16:40:24,259 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 16:40:24,260 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 16:40:24,260 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 14 [2020-10-14 16:40:24,260 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 16:40:24,260 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 16:40:24,310 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-14 16:40:24,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 16:40:24,318 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 16:40:24,324 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 16:40:24,328 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 16:40:24,329 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 16:40:24,329 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-14 16:40:24,329 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 16:40:24,329 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 16:40:24,329 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 16:40:24,330 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 16:40:24,330 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 16:40:24,330 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 16:40:24,342 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 16:40:24,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 16:40:24,352 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 16:40:24,358 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 16:40:24,359 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 16:40:24,359 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 16:40:24,359 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-14 16:40:24,359 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 16:40:24,360 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 16:40:24,360 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 16:40:24,360 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-10-14 16:40:24,360 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 16:40:24,361 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 16:40:24,373 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-10-14 16:40:24,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 16:40:24,392 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 16:40:24,414 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 16:40:24,453 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 16:40:24,453 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-10-14 16:40:24,453 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 16:40:24,453 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 71 [2020-10-14 16:40:24,454 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 16:40:24,454 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 16:40:24,454 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 16:40:24,454 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 20 [2020-10-14 16:40:24,454 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 16:40:24,455 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 16:40:24,470 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-14 16:40:24,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 16:40:24,479 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 16:40:24,487 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 16:40:24,487 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 16:40:24,487 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 16:40:24,488 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-14 16:40:24,488 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 16:40:24,488 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 16:40:24,488 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 16:40:24,488 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 16:40:24,489 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 16:40:24,489 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 16:40:24,503 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 16:40:24,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 16:40:24,511 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 16:40:24,515 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 16:40:24,519 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 16:40:24,519 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 16:40:24,520 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 16:40:24,520 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-14 16:40:24,520 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 16:40:24,520 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 16:40:24,521 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 16:40:24,521 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-10-14 16:40:24,521 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 16:40:24,521 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 16:40:24,647 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-10-14 16:40:24,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 16:40:24,694 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 16:40:24,718 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 16:40:24,775 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 16:40:24,776 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-10-14 16:40:24,776 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 16:40:24,777 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 109 [2020-10-14 16:40:24,777 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 16:40:24,777 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 16:40:24,778 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 16:40:24,778 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 14 [2020-10-14 16:40:24,778 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 16:40:24,779 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 16:40:24,795 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-14 16:40:24,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 16:40:24,807 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 16:40:24,832 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 16:40:24,832 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 16:40:24,833 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 16:40:24,834 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 34 [2020-10-14 16:40:24,834 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 16:40:24,834 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 16:40:24,835 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 16:40:24,835 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 16:40:24,836 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 16:40:24,836 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 16:40:24,851 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 16:40:24,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 16:40:24,866 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 16:40:24,873 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 16:40:24,874 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 16:40:24,874 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 16:40:24,874 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-10-14 16:40:24,875 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 16:40:24,875 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 16:40:24,876 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 16:40:24,876 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-10-14 16:40:24,876 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 16:40:24,877 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 16:40:24,892 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2020-10-14 16:40:24,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 16:40:24,903 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 16:40:24,913 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 16:40:24,913 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-14 16:40:24,914 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 16:40:24,914 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-14 16:40:24,914 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 16:40:24,915 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 16:40:24,915 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 16:40:24,916 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 4 [2020-10-14 16:40:24,916 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 16:40:24,916 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 16:40:25,079 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2020-10-14 16:40:25,081 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [94650580] [2020-10-14 16:40:25,083 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 16:40:25,083 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-14 16:40:25,084 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1712768037] [2020-10-14 16:40:25,092 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-14 16:40:25,093 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 16:40:25,114 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-14 16:40:25,116 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-14 16:40:25,119 INFO L87 Difference]: Start difference. First operand 1662 states. Second operand 5 states. [2020-10-14 16:40:43,039 WARN L193 SmtUtils]: Spent 17.82 s on a formula simplification that was a NOOP. DAG size: 1891 [2020-10-14 16:41:49,393 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 16:41:49,394 INFO L93 Difference]: Finished difference Result 2769 states and 3723 transitions. [2020-10-14 16:41:49,395 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-14 16:41:49,397 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 72 [2020-10-14 16:41:49,398 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 16:41:49,428 INFO L225 Difference]: With dead ends: 2769 [2020-10-14 16:41:49,428 INFO L226 Difference]: Without dead ends: 1450 [2020-10-14 16:41:49,441 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 36.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-14 16:41:49,460 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1450 states. [2020-10-14 16:41:50,263 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1450 to 1268. [2020-10-14 16:41:50,265 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1268 states. [2020-10-14 16:41:50,274 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1268 states to 1268 states and 1686 transitions. [2020-10-14 16:41:50,277 INFO L78 Accepts]: Start accepts. Automaton has 1268 states and 1686 transitions. Word has length 72 [2020-10-14 16:41:50,277 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 16:41:50,277 INFO L479 AbstractCegarLoop]: Abstraction has 1268 states and 1686 transitions. [2020-10-14 16:41:50,278 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-14 16:41:50,278 INFO L276 IsEmpty]: Start isEmpty. Operand 1268 states and 1686 transitions. [2020-10-14 16:41:50,282 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2020-10-14 16:41:50,282 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 16:41:50,282 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2020-10-14 16:41:50,283 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-14 16:41:50,283 INFO L427 AbstractCegarLoop]: === Iteration 2 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 16:41:50,283 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 16:41:50,283 INFO L82 PathProgramCache]: Analyzing trace with hash -1161410980, now seen corresponding path program 1 times [2020-10-14 16:41:50,284 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 16:41:50,284 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1984171094] [2020-10-14 16:41:50,284 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 16:41:50,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 16:41:51,264 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 16:42:04,187 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 16:42:04,187 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 106 [2020-10-14 16:42:04,187 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 16:42:04,187 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13382 [2020-10-14 16:42:04,188 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 16:42:04,188 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 16:42:04,188 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 16:42:04,188 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 83 [2020-10-14 16:42:04,188 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-14 16:42:04,189 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 16:42:22,149 WARN L193 SmtUtils]: Spent 17.68 s on a formula simplification that was a NOOP. DAG size: 1888 [2020-10-14 16:42:22,151 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 16:42:22,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 16:42:22,227 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 16:42:24,508 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 16:42:24,509 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 16:42:24,509 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 16:42:24,509 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2306 [2020-10-14 16:42:24,510 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 16:42:24,510 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 16:42:24,510 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 16:42:24,510 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 16:42:24,510 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 16:42:24,511 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 16:42:24,838 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 16:42:24,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 16:42:24,850 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 16:42:24,878 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 16:42:24,878 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-10-14 16:42:24,879 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 16:42:24,879 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 35 [2020-10-14 16:42:24,879 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 16:42:24,879 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 16:42:24,880 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 16:42:24,880 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 16:42:24,880 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 16:42:24,880 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 16:42:24,952 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-14 16:42:24,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 16:42:24,959 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 16:42:24,963 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 16:42:24,963 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 16:42:24,963 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 16:42:24,963 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-14 16:42:24,964 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 16:42:24,964 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 16:42:24,964 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 16:42:24,965 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 16:42:24,965 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 16:42:24,965 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 16:42:24,973 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 16:42:24,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 16:42:24,980 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 16:42:24,983 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 16:42:24,983 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 16:42:24,984 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 16:42:24,984 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-14 16:42:24,984 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 16:42:24,984 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 16:42:24,985 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 16:42:24,985 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 16:42:24,985 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 16:42:24,985 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 16:42:24,993 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-10-14 16:42:24,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 16:42:25,013 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 16:42:25,037 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 16:42:25,038 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-10-14 16:42:25,038 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 16:42:25,038 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 37 [2020-10-14 16:42:25,038 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 16:42:25,039 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 16:42:25,039 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 16:42:25,039 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 16:42:25,039 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 16:42:25,039 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 16:42:25,050 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-14 16:42:25,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 16:42:25,055 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 16:42:25,059 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 16:42:25,059 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 16:42:25,060 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 16:42:25,060 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-14 16:42:25,060 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 16:42:25,060 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 16:42:25,060 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 16:42:25,061 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 16:42:25,061 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 16:42:25,061 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 16:42:25,070 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 16:42:25,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 16:42:25,080 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 16:42:25,083 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 16:42:25,083 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 16:42:25,084 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 16:42:25,084 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-14 16:42:25,084 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 16:42:25,084 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 16:42:25,084 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 16:42:25,085 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 16:42:25,085 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 16:42:25,085 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 16:42:25,092 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-10-14 16:42:25,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 16:42:25,101 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 16:42:25,125 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 16:42:25,125 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-10-14 16:42:25,125 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 16:42:25,126 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 29 [2020-10-14 16:42:25,126 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 16:42:25,126 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 16:42:25,126 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 16:42:25,126 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 16:42:25,127 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 16:42:25,127 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 16:42:25,138 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-14 16:42:25,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 16:42:25,144 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 16:42:25,148 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 16:42:25,148 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 16:42:25,149 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 16:42:25,149 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-14 16:42:25,149 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 16:42:25,150 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 16:42:25,150 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 16:42:25,150 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 16:42:25,150 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 16:42:25,150 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 16:42:25,158 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 16:42:25,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 16:42:25,165 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 16:42:25,171 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 16:42:25,171 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 16:42:25,172 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 16:42:25,172 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-14 16:42:25,172 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 16:42:25,172 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 16:42:25,172 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 16:42:25,174 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 16:42:25,174 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 16:42:25,174 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-14 16:42:25,182 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2020-10-14 16:42:25,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 16:42:25,188 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 16:42:25,190 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 16:42:25,191 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-14 16:42:25,191 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 16:42:25,191 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-14 16:42:25,191 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 16:42:25,191 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 16:42:25,192 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 16:42:25,192 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 16:42:25,192 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 16:42:25,192 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 16:42:25,271 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2020-10-14 16:42:25,272 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1984171094] [2020-10-14 16:42:25,272 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 16:42:25,272 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-14 16:42:25,272 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [213102633] [2020-10-14 16:42:25,274 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-14 16:42:25,274 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 16:42:25,275 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-14 16:42:25,275 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-10-14 16:42:25,275 INFO L87 Difference]: Start difference. First operand 1268 states and 1686 transitions. Second operand 6 states. [2020-10-14 16:42:43,229 WARN L193 SmtUtils]: Spent 17.90 s on a formula simplification that was a NOOP. DAG size: 1891 [2020-10-14 16:43:04,883 WARN L193 SmtUtils]: Spent 17.99 s on a formula simplification that was a NOOP. DAG size: 1893 [2020-10-14 16:43:25,886 WARN L193 SmtUtils]: Spent 17.90 s on a formula simplification that was a NOOP. DAG size: 1890