/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=NARROWEST --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-3.16-rc1/43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-drivers--isdn--hardware--mISDN--hfcsusb.ko-entry_point.cil.out.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-adbd35c [2020-10-13 19:43:38,296 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-13 19:43:38,298 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-13 19:43:38,323 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-13 19:43:38,323 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-13 19:43:38,324 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-13 19:43:38,326 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-13 19:43:38,328 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-13 19:43:38,329 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-13 19:43:38,330 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-13 19:43:38,331 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-13 19:43:38,332 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-13 19:43:38,332 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-13 19:43:38,333 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-13 19:43:38,334 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-13 19:43:38,335 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-13 19:43:38,336 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-13 19:43:38,337 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-13 19:43:38,339 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-13 19:43:38,341 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-13 19:43:38,342 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-13 19:43:38,343 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-13 19:43:38,348 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-13 19:43:38,349 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-13 19:43:38,353 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-13 19:43:38,354 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-13 19:43:38,355 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-13 19:43:38,357 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-13 19:43:38,359 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-13 19:43:38,360 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-13 19:43:38,360 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-13 19:43:38,361 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-13 19:43:38,362 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-13 19:43:38,365 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-13 19:43:38,366 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-13 19:43:38,366 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-13 19:43:38,368 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-13 19:43:38,368 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-13 19:43:38,369 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-13 19:43:38,369 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-13 19:43:38,370 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-13 19:43:38,371 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 [2020-10-13 19:43:38,418 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-13 19:43:38,418 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-13 19:43:38,424 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-13 19:43:38,424 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-13 19:43:38,425 INFO L138 SettingsManager]: * Use SBE=true [2020-10-13 19:43:38,425 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-13 19:43:38,425 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-13 19:43:38,425 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-13 19:43:38,426 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-13 19:43:38,426 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-13 19:43:38,426 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-13 19:43:38,426 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-13 19:43:38,426 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-13 19:43:38,427 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-13 19:43:38,427 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-13 19:43:38,427 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-13 19:43:38,427 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-13 19:43:38,427 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-13 19:43:38,428 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-13 19:43:38,428 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-13 19:43:38,429 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-13 19:43:38,429 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-13 19:43:38,430 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-13 19:43:38,430 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-13 19:43:38,430 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-13 19:43:38,430 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-13 19:43:38,430 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-10-13 19:43:38,430 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=NARROWEST;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=NARROWEST;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=NARROWEST;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=NARROWEST;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=NARROWEST;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=NARROWEST;log-additional-information=true;unknown-allowed=true; [2020-10-13 19:43:38,770 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-13 19:43:38,792 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-13 19:43:38,798 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-13 19:43:38,800 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-13 19:43:38,802 INFO L275 PluginConnector]: CDTParser initialized [2020-10-13 19:43:38,804 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-linux-3.16-rc1/43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-drivers--isdn--hardware--mISDN--hfcsusb.ko-entry_point.cil.out.i [2020-10-13 19:43:38,882 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/4bbaaa09a/b3e45bad19ef41fca71388aaf593aae7/FLAGdb6586394 [2020-10-13 19:43:39,747 INFO L306 CDTParser]: Found 1 translation units. [2020-10-13 19:43:39,748 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/ldv-linux-3.16-rc1/43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-drivers--isdn--hardware--mISDN--hfcsusb.ko-entry_point.cil.out.i [2020-10-13 19:43:39,788 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/4bbaaa09a/b3e45bad19ef41fca71388aaf593aae7/FLAGdb6586394 [2020-10-13 19:43:40,234 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/4bbaaa09a/b3e45bad19ef41fca71388aaf593aae7 [2020-10-13 19:43:40,244 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-13 19:43:40,246 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-13 19:43:40,248 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-13 19:43:40,248 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-13 19:43:40,252 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-13 19:43:40,253 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 07:43:40" (1/1) ... [2020-10-13 19:43:40,256 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@51a0a5de and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:43:40, skipping insertion in model container [2020-10-13 19:43:40,256 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 07:43:40" (1/1) ... [2020-10-13 19:43:40,266 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-13 19:43:40,466 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-13 19:43:41,272 WARN L1191 CHandler]: Detected problem Invalid redeclaration of the name show at C: (*show)(struct kobject___0 * , struct attribute___0 * , char * ) [6058] [2020-10-13 19:43:41,273 WARN L1191 CHandler]: Detected problem Invalid redeclaration of the name store at C: (*store)(struct kobject___0 * , struct attribute___0 * , char const * , size_t ) [6059-6060] [2020-10-13 19:43:43,104 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-13 19:43:43,171 INFO L203 MainTranslator]: Completed pre-run [2020-10-13 19:43:43,336 WARN L1191 CHandler]: Detected problem Invalid redeclaration of the name show at C: (*show)(struct kobject___0 * , struct attribute___0 * , char * ) [6058] [2020-10-13 19:43:43,337 WARN L1191 CHandler]: Detected problem Invalid redeclaration of the name store at C: (*store)(struct kobject___0 * , struct attribute___0 * , char const * , size_t ) [6059-6060] [2020-10-13 19:43:43,702 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-13 19:43:44,050 INFO L208 MainTranslator]: Completed translation [2020-10-13 19:43:44,051 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:43:44 WrapperNode [2020-10-13 19:43:44,051 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-13 19:43:44,052 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-13 19:43:44,053 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-13 19:43:44,053 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-13 19:43:44,070 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:43:44" (1/1) ... [2020-10-13 19:43:44,070 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:43:44" (1/1) ... [2020-10-13 19:43:44,173 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:43:44" (1/1) ... [2020-10-13 19:43:44,174 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:43:44" (1/1) ... [2020-10-13 19:43:44,307 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:43:44" (1/1) ... [2020-10-13 19:43:44,329 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:43:44" (1/1) ... [2020-10-13 19:43:44,450 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:43:44" (1/1) ... [2020-10-13 19:43:44,477 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-13 19:43:44,478 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-13 19:43:44,478 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-13 19:43:44,478 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-13 19:43:44,479 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:43:44" (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 [2020-10-13 19:43:44,569 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-13 19:43:44,570 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-13 19:43:44,571 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2020-10-13 19:43:44,572 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2020-10-13 19:43:44,572 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_bit [2020-10-13 19:43:44,573 INFO L138 BoogieDeclarations]: Found implementation of procedure test_and_set_bit [2020-10-13 19:43:44,574 INFO L138 BoogieDeclarations]: Found implementation of procedure test_and_clear_bit [2020-10-13 19:43:44,574 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2020-10-13 19:43:44,574 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add [2020-10-13 19:43:44,574 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add_tail [2020-10-13 19:43:44,574 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2020-10-13 19:43:44,575 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_1 [2020-10-13 19:43:44,575 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_5 [2020-10-13 19:43:44,577 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irqrestore_8 [2020-10-13 19:43:44,577 INFO L138 BoogieDeclarations]: Found implementation of procedure queue_work [2020-10-13 19:43:44,578 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule_work [2020-10-13 19:43:44,578 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-10-13 19:43:44,578 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2020-10-13 19:43:44,578 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2020-10-13 19:43:44,578 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2020-10-13 19:43:44,579 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_ulong [2020-10-13 19:43:44,579 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2020-10-13 19:43:44,579 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2020-10-13 19:43:44,579 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2020-10-13 19:43:44,580 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_trap [2020-10-13 19:43:44,580 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_get_drvdata [2020-10-13 19:43:44,580 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_set_drvdata [2020-10-13 19:43:44,580 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_get_intfdata [2020-10-13 19:43:44,580 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_set_intfdata [2020-10-13 19:43:44,580 INFO L138 BoogieDeclarations]: Found implementation of procedure interface_to_usbdev [2020-10-13 19:43:44,581 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_fill_control_urb [2020-10-13 19:43:44,581 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_fill_bulk_urb [2020-10-13 19:43:44,581 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_fill_int_urb [2020-10-13 19:43:44,581 INFO L138 BoogieDeclarations]: Found implementation of procedure __create_pipe [2020-10-13 19:43:44,581 INFO L138 BoogieDeclarations]: Found implementation of procedure set_channelmap [2020-10-13 19:43:44,581 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_alloc_skb_20 [2020-10-13 19:43:44,581 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_reserve [2020-10-13 19:43:44,582 INFO L138 BoogieDeclarations]: Found implementation of procedure mI_alloc_skb [2020-10-13 19:43:44,582 INFO L138 BoogieDeclarations]: Found implementation of procedure _alloc_mISDN_skb [2020-10-13 19:43:44,582 INFO L138 BoogieDeclarations]: Found implementation of procedure _queue_data [2020-10-13 19:43:44,582 INFO L138 BoogieDeclarations]: Found implementation of procedure symbolic [2020-10-13 19:43:44,582 INFO L138 BoogieDeclarations]: Found implementation of procedure ctrl_start_transfer [2020-10-13 19:43:44,582 INFO L138 BoogieDeclarations]: Found implementation of procedure write_reg [2020-10-13 19:43:44,582 INFO L138 BoogieDeclarations]: Found implementation of procedure ctrl_complete [2020-10-13 19:43:44,583 INFO L138 BoogieDeclarations]: Found implementation of procedure set_led_bit [2020-10-13 19:43:44,583 INFO L138 BoogieDeclarations]: Found implementation of procedure handle_led [2020-10-13 19:43:44,583 INFO L138 BoogieDeclarations]: Found implementation of procedure hfcusb_l2l1B [2020-10-13 19:43:44,584 INFO L138 BoogieDeclarations]: Found implementation of procedure hfcsusb_ph_info [2020-10-13 19:43:44,584 INFO L138 BoogieDeclarations]: Found implementation of procedure hfcusb_l2l1D [2020-10-13 19:43:44,584 INFO L138 BoogieDeclarations]: Found implementation of procedure hfc_l1callback [2020-10-13 19:43:44,584 INFO L138 BoogieDeclarations]: Found implementation of procedure open_dchannel [2020-10-13 19:43:44,585 INFO L138 BoogieDeclarations]: Found implementation of procedure open_bchannel [2020-10-13 19:43:44,585 INFO L138 BoogieDeclarations]: Found implementation of procedure channel_ctrl [2020-10-13 19:43:44,585 INFO L138 BoogieDeclarations]: Found implementation of procedure hfc_dctrl [2020-10-13 19:43:44,585 INFO L138 BoogieDeclarations]: Found implementation of procedure ph_state_te [2020-10-13 19:43:44,585 INFO L138 BoogieDeclarations]: Found implementation of procedure ph_state_nt [2020-10-13 19:43:44,585 INFO L138 BoogieDeclarations]: Found implementation of procedure ph_state [2020-10-13 19:43:44,586 INFO L138 BoogieDeclarations]: Found implementation of procedure hfcsusb_setup_bch [2020-10-13 19:43:44,586 INFO L138 BoogieDeclarations]: Found implementation of procedure hfcsusb_ph_command [2020-10-13 19:43:44,586 INFO L138 BoogieDeclarations]: Found implementation of procedure channel_bctrl [2020-10-13 19:43:44,586 INFO L138 BoogieDeclarations]: Found implementation of procedure hfcsusb_rx_frame [2020-10-13 19:43:44,587 INFO L138 BoogieDeclarations]: Found implementation of procedure fill_isoc_urb [2020-10-13 19:43:44,587 INFO L138 BoogieDeclarations]: Found implementation of procedure rx_iso_complete [2020-10-13 19:43:44,587 INFO L138 BoogieDeclarations]: Found implementation of procedure rx_int_complete [2020-10-13 19:43:44,587 INFO L138 BoogieDeclarations]: Found implementation of procedure tx_iso_complete [2020-10-13 19:43:44,587 INFO L138 BoogieDeclarations]: Found implementation of procedure start_isoc_chain [2020-10-13 19:43:44,588 INFO L138 BoogieDeclarations]: Found implementation of procedure stop_iso_gracefull [2020-10-13 19:43:44,588 INFO L138 BoogieDeclarations]: Found implementation of procedure stop_int_gracefull [2020-10-13 19:43:44,588 INFO L138 BoogieDeclarations]: Found implementation of procedure start_int_fifo [2020-10-13 19:43:44,590 INFO L138 BoogieDeclarations]: Found implementation of procedure setPortMode [2020-10-13 19:43:44,590 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_hfcsusb [2020-10-13 19:43:44,590 INFO L138 BoogieDeclarations]: Found implementation of procedure hfcsusb_start_endpoint [2020-10-13 19:43:44,590 INFO L138 BoogieDeclarations]: Found implementation of procedure hfcsusb_stop_endpoint [2020-10-13 19:43:44,591 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_hfcsusb [2020-10-13 19:43:44,591 INFO L138 BoogieDeclarations]: Found implementation of procedure release_hw [2020-10-13 19:43:44,591 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivate_bchannel [2020-10-13 19:43:44,591 INFO L138 BoogieDeclarations]: Found implementation of procedure hfc_bctrl [2020-10-13 19:43:44,592 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_instance [2020-10-13 19:43:44,593 INFO L138 BoogieDeclarations]: Found implementation of procedure hfcsusb_probe [2020-10-13 19:43:44,593 INFO L138 BoogieDeclarations]: Found implementation of procedure hfcsusb_disconnect [2020-10-13 19:43:44,593 INFO L138 BoogieDeclarations]: Found implementation of procedure hfcsusb_drv_init [2020-10-13 19:43:44,593 INFO L138 BoogieDeclarations]: Found implementation of procedure hfcsusb_drv_exit [2020-10-13 19:43:44,593 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_driver_1 [2020-10-13 19:43:44,593 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-13 19:43:44,597 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2020-10-13 19:43:44,598 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2020-10-13 19:43:44,598 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2020-10-13 19:43:44,598 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2020-10-13 19:43:44,598 INFO L138 BoogieDeclarations]: Found implementation of procedure alloc_skb [2020-10-13 19:43:44,598 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_pskb_expand_head_22 [2020-10-13 19:43:44,598 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_skb_clone_24 [2020-10-13 19:43:44,599 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_skb_copy_26 [2020-10-13 19:43:44,599 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv___netdev_alloc_skb_27 [2020-10-13 19:43:44,599 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv___netdev_alloc_skb_28 [2020-10-13 19:43:44,599 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv___netdev_alloc_skb_29 [2020-10-13 19:43:44,599 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_pskb_expand_head_30 [2020-10-13 19:43:44,599 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_pskb_expand_head_31 [2020-10-13 19:43:44,600 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_skb_clone_32 [2020-10-13 19:43:44,600 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_submit_urb_33 [2020-10-13 19:43:44,600 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_submit_urb_34 [2020-10-13 19:43:44,600 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_submit_urb_35 [2020-10-13 19:43:44,600 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_submit_urb_36 [2020-10-13 19:43:44,600 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_alloc_urb_37 [2020-10-13 19:43:44,601 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_submit_urb_38 [2020-10-13 19:43:44,601 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_alloc_urb_39 [2020-10-13 19:43:44,601 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_submit_urb_40 [2020-10-13 19:43:44,601 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_alloc_urb_41 [2020-10-13 19:43:44,601 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_register_driver_42 [2020-10-13 19:43:44,601 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_deregister_43 [2020-10-13 19:43:44,602 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags [2020-10-13 19:43:44,602 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags_and_return_some_page [2020-10-13 19:43:44,602 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_nonatomic [2020-10-13 19:43:44,603 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock [2020-10-13 19:43:44,603 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock [2020-10-13 19:43:44,603 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_trylock [2020-10-13 19:43:44,603 INFO L138 BoogieDeclarations]: Found implementation of procedure __alloc_skb [2020-10-13 19:43:44,603 INFO L138 BoogieDeclarations]: Found implementation of procedure __list_add [2020-10-13 19:43:44,604 INFO L138 BoogieDeclarations]: Found implementation of procedure __netdev_alloc_skb [2020-10-13 19:43:44,604 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2020-10-13 19:43:44,604 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock [2020-10-13 19:43:44,604 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_unlock [2020-10-13 19:43:44,605 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_unlock_irqrestore [2020-10-13 19:43:44,605 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_write_lock_irqsave [2020-10-13 19:43:44,606 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_write_unlock_irqrestore [2020-10-13 19:43:44,606 INFO L138 BoogieDeclarations]: Found implementation of procedure bchannel_get_rxbuf [2020-10-13 19:43:44,610 INFO L138 BoogieDeclarations]: Found implementation of procedure bchannel_senddata [2020-10-13 19:43:44,610 INFO L138 BoogieDeclarations]: Found implementation of procedure consume_skb [2020-10-13 19:43:44,610 INFO L138 BoogieDeclarations]: Found implementation of procedure create_l1 [2020-10-13 19:43:44,611 INFO L138 BoogieDeclarations]: Found implementation of procedure dchannel_senddata [2020-10-13 19:43:44,611 INFO L138 BoogieDeclarations]: Found implementation of procedure get_next_bframe [2020-10-13 19:43:44,611 INFO L138 BoogieDeclarations]: Found implementation of procedure get_next_dframe [2020-10-13 19:43:44,611 INFO L138 BoogieDeclarations]: Found implementation of procedure kmem_cache_alloc [2020-10-13 19:43:44,612 INFO L138 BoogieDeclarations]: Found implementation of procedure l1_event [2020-10-13 19:43:44,612 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2020-10-13 19:43:44,612 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize [2020-10-13 19:43:44,612 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_some_page [2020-10-13 19:43:44,612 INFO L138 BoogieDeclarations]: Found implementation of procedure list_del [2020-10-13 19:43:44,613 INFO L138 BoogieDeclarations]: Found implementation of procedure mISDN_clear_bchannel [2020-10-13 19:43:44,613 INFO L138 BoogieDeclarations]: Found implementation of procedure mISDN_ctrl_bchannel [2020-10-13 19:43:44,613 INFO L138 BoogieDeclarations]: Found implementation of procedure mISDN_freebchannel [2020-10-13 19:43:44,614 INFO L138 BoogieDeclarations]: Found implementation of procedure mISDN_freedchannel [2020-10-13 19:43:44,621 INFO L138 BoogieDeclarations]: Found implementation of procedure mISDN_initbchannel [2020-10-13 19:43:44,621 INFO L138 BoogieDeclarations]: Found implementation of procedure mISDN_initdchannel [2020-10-13 19:43:44,621 INFO L138 BoogieDeclarations]: Found implementation of procedure mISDN_register_device [2020-10-13 19:43:44,621 INFO L138 BoogieDeclarations]: Found implementation of procedure mISDN_unregister_device [2020-10-13 19:43:44,622 INFO L138 BoogieDeclarations]: Found implementation of procedure module_put [2020-10-13 19:43:44,622 INFO L138 BoogieDeclarations]: Found implementation of procedure printk [2020-10-13 19:43:44,622 INFO L138 BoogieDeclarations]: Found implementation of procedure pskb_expand_head [2020-10-13 19:43:44,622 INFO L138 BoogieDeclarations]: Found implementation of procedure queue_ch_frame [2020-10-13 19:43:44,622 INFO L138 BoogieDeclarations]: Found implementation of procedure queue_work_on [2020-10-13 19:43:44,622 INFO L138 BoogieDeclarations]: Found implementation of procedure recv_Bchannel [2020-10-13 19:43:44,622 INFO L138 BoogieDeclarations]: Found implementation of procedure recv_Dchannel [2020-10-13 19:43:44,622 INFO L138 BoogieDeclarations]: Found implementation of procedure recv_Echannel [2020-10-13 19:43:44,622 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule_timeout_interruptible [2020-10-13 19:43:44,623 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_clone [2020-10-13 19:43:44,623 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_copy [2020-10-13 19:43:44,623 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_put [2020-10-13 19:43:44,623 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_queue_purge [2020-10-13 19:43:44,624 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_trim [2020-10-13 19:43:44,624 INFO L138 BoogieDeclarations]: Found implementation of procedure try_module_get [2020-10-13 19:43:44,624 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_alloc_urb [2020-10-13 19:43:44,624 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_control_msg [2020-10-13 19:43:44,624 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_deregister [2020-10-13 19:43:44,624 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_free_urb [2020-10-13 19:43:44,624 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_kill_urb [2020-10-13 19:43:44,624 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_register_driver [2020-10-13 19:43:44,625 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_set_interface [2020-10-13 19:43:44,625 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_submit_urb [2020-10-13 19:43:44,625 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2020-10-13 19:43:44,625 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2020-10-13 19:43:44,625 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2020-10-13 19:43:44,625 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2020-10-13 19:43:44,625 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-10-13 19:43:44,626 INFO L130 BoogieDeclarations]: Found specification of procedure __builtin_return_address [2020-10-13 19:43:44,626 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2020-10-13 19:43:44,626 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock [2020-10-13 19:43:44,626 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock [2020-10-13 19:43:44,626 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2020-10-13 19:43:44,627 INFO L130 BoogieDeclarations]: Found specification of procedure clear_bit [2020-10-13 19:43:44,627 INFO L130 BoogieDeclarations]: Found specification of procedure test_and_set_bit [2020-10-13 19:43:44,627 INFO L130 BoogieDeclarations]: Found specification of procedure test_and_clear_bit [2020-10-13 19:43:44,627 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2020-10-13 19:43:44,627 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-13 19:43:44,627 INFO L130 BoogieDeclarations]: Found specification of procedure printk [2020-10-13 19:43:44,627 INFO L130 BoogieDeclarations]: Found specification of procedure snprintf [2020-10-13 19:43:44,627 INFO L130 BoogieDeclarations]: Found specification of procedure __list_add [2020-10-13 19:43:44,628 INFO L130 BoogieDeclarations]: Found specification of procedure list_add [2020-10-13 19:43:44,628 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-10-13 19:43:44,628 INFO L130 BoogieDeclarations]: Found specification of procedure list_add_tail [2020-10-13 19:43:44,628 INFO L130 BoogieDeclarations]: Found specification of procedure list_del [2020-10-13 19:43:44,628 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy [2020-10-13 19:43:44,628 INFO L130 BoogieDeclarations]: Found specification of procedure memset [2020-10-13 19:43:44,628 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2020-10-13 19:43:44,628 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock [2020-10-13 19:43:44,628 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_unlock [2020-10-13 19:43:44,629 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_unlock_irqrestore [2020-10-13 19:43:44,629 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_write_lock_irqsave [2020-10-13 19:43:44,629 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_write_unlock_irqrestore [2020-10-13 19:43:44,629 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2020-10-13 19:43:44,629 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_1 [2020-10-13 19:43:44,629 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2020-10-13 19:43:44,629 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_5 [2020-10-13 19:43:44,629 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2020-10-13 19:43:44,629 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irqrestore_8 [2020-10-13 19:43:44,630 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2020-10-13 19:43:44,630 INFO L130 BoogieDeclarations]: Found specification of procedure queue_work_on [2020-10-13 19:43:44,630 INFO L130 BoogieDeclarations]: Found specification of procedure queue_work [2020-10-13 19:43:44,630 INFO L130 BoogieDeclarations]: Found specification of procedure schedule_work [2020-10-13 19:43:44,630 INFO L130 BoogieDeclarations]: Found specification of procedure try_module_get [2020-10-13 19:43:44,630 INFO L130 BoogieDeclarations]: Found specification of procedure module_put [2020-10-13 19:43:44,630 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2020-10-13 19:43:44,630 INFO L130 BoogieDeclarations]: Found specification of procedure kmem_cache_alloc [2020-10-13 19:43:44,631 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2020-10-13 19:43:44,631 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags [2020-10-13 19:43:44,631 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-10-13 19:43:44,631 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2020-10-13 19:43:44,631 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-13 19:43:44,631 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_ulong [2020-10-13 19:43:44,631 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-13 19:43:44,631 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-10-13 19:43:44,631 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2020-10-13 19:43:44,632 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-10-13 19:43:44,632 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2020-10-13 19:43:44,632 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2020-10-13 19:43:44,632 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2020-10-13 19:43:44,632 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_ulong [2020-10-13 19:43:44,632 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2020-10-13 19:43:44,632 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2020-10-13 19:43:44,632 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_trap [2020-10-13 19:43:44,632 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_driver_1 [2020-10-13 19:43:44,633 INFO L130 BoogieDeclarations]: Found specification of procedure dev_get_drvdata [2020-10-13 19:43:44,633 INFO L130 BoogieDeclarations]: Found specification of procedure dev_set_drvdata [2020-10-13 19:43:44,633 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-10-13 19:43:44,633 INFO L130 BoogieDeclarations]: Found specification of procedure schedule_timeout_interruptible [2020-10-13 19:43:44,633 INFO L130 BoogieDeclarations]: Found specification of procedure usb_get_intfdata [2020-10-13 19:43:44,633 INFO L130 BoogieDeclarations]: Found specification of procedure usb_set_intfdata [2020-10-13 19:43:44,633 INFO L130 BoogieDeclarations]: Found specification of procedure interface_to_usbdev [2020-10-13 19:43:44,633 INFO L130 BoogieDeclarations]: Found specification of procedure usb_register_driver [2020-10-13 19:43:44,634 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_register_driver_42 [2020-10-13 19:43:44,634 INFO L130 BoogieDeclarations]: Found specification of procedure usb_deregister [2020-10-13 19:43:44,634 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_deregister_43 [2020-10-13 19:43:44,634 INFO L130 BoogieDeclarations]: Found specification of procedure usb_fill_control_urb [2020-10-13 19:43:44,634 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-13 19:43:44,634 INFO L130 BoogieDeclarations]: Found specification of procedure usb_fill_bulk_urb [2020-10-13 19:43:44,634 INFO L130 BoogieDeclarations]: Found specification of procedure usb_fill_int_urb [2020-10-13 19:43:44,634 INFO L130 BoogieDeclarations]: Found specification of procedure usb_alloc_urb [2020-10-13 19:43:44,634 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_alloc_urb_37 [2020-10-13 19:43:44,635 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_alloc_urb_39 [2020-10-13 19:43:44,635 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_alloc_urb_41 [2020-10-13 19:43:44,635 INFO L130 BoogieDeclarations]: Found specification of procedure usb_free_urb [2020-10-13 19:43:44,635 INFO L130 BoogieDeclarations]: Found specification of procedure usb_submit_urb [2020-10-13 19:43:44,636 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_submit_urb_33 [2020-10-13 19:43:44,641 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_submit_urb_34 [2020-10-13 19:43:44,641 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_submit_urb_35 [2020-10-13 19:43:44,641 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_submit_urb_36 [2020-10-13 19:43:44,641 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_submit_urb_38 [2020-10-13 19:43:44,641 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_submit_urb_40 [2020-10-13 19:43:44,641 INFO L130 BoogieDeclarations]: Found specification of procedure usb_kill_urb [2020-10-13 19:43:44,642 INFO L130 BoogieDeclarations]: Found specification of procedure usb_control_msg [2020-10-13 19:43:44,642 INFO L130 BoogieDeclarations]: Found specification of procedure usb_set_interface [2020-10-13 19:43:44,642 INFO L130 BoogieDeclarations]: Found specification of procedure __create_pipe [2020-10-13 19:43:44,642 INFO L130 BoogieDeclarations]: Found specification of procedure set_channelmap [2020-10-13 19:43:44,642 INFO L130 BoogieDeclarations]: Found specification of procedure consume_skb [2020-10-13 19:43:44,642 INFO L130 BoogieDeclarations]: Found specification of procedure __alloc_skb [2020-10-13 19:43:44,642 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_alloc_skb_20 [2020-10-13 19:43:44,642 INFO L130 BoogieDeclarations]: Found specification of procedure alloc_skb [2020-10-13 19:43:44,643 INFO L130 BoogieDeclarations]: Found specification of procedure skb_clone [2020-10-13 19:43:44,643 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_skb_clone_24 [2020-10-13 19:43:44,643 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_skb_clone_32 [2020-10-13 19:43:44,645 INFO L130 BoogieDeclarations]: Found specification of procedure skb_copy [2020-10-13 19:43:44,645 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_skb_copy_26 [2020-10-13 19:43:44,646 INFO L130 BoogieDeclarations]: Found specification of procedure pskb_expand_head [2020-10-13 19:43:44,646 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_pskb_expand_head_22 [2020-10-13 19:43:44,646 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_pskb_expand_head_30 [2020-10-13 19:43:44,646 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_pskb_expand_head_31 [2020-10-13 19:43:44,646 INFO L130 BoogieDeclarations]: Found specification of procedure skb_put [2020-10-13 19:43:44,646 INFO L130 BoogieDeclarations]: Found specification of procedure skb_reserve [2020-10-13 19:43:44,646 INFO L130 BoogieDeclarations]: Found specification of procedure skb_trim [2020-10-13 19:43:44,646 INFO L130 BoogieDeclarations]: Found specification of procedure skb_queue_purge [2020-10-13 19:43:44,647 INFO L130 BoogieDeclarations]: Found specification of procedure __netdev_alloc_skb [2020-10-13 19:43:44,647 INFO L130 BoogieDeclarations]: Found specification of procedure ldv___netdev_alloc_skb_27 [2020-10-13 19:43:44,647 INFO L130 BoogieDeclarations]: Found specification of procedure ldv___netdev_alloc_skb_28 [2020-10-13 19:43:44,647 INFO L130 BoogieDeclarations]: Found specification of procedure ldv___netdev_alloc_skb_29 [2020-10-13 19:43:44,647 INFO L130 BoogieDeclarations]: Found specification of procedure mI_alloc_skb [2020-10-13 19:43:44,647 INFO L130 BoogieDeclarations]: Found specification of procedure _alloc_mISDN_skb [2020-10-13 19:43:44,647 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2020-10-13 19:43:44,647 INFO L130 BoogieDeclarations]: Found specification of procedure _queue_data [2020-10-13 19:43:44,648 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2020-10-13 19:43:44,648 INFO L130 BoogieDeclarations]: Found specification of procedure mISDN_register_device [2020-10-13 19:43:44,648 INFO L130 BoogieDeclarations]: Found specification of procedure mISDN_unregister_device [2020-10-13 19:43:44,648 INFO L130 BoogieDeclarations]: Found specification of procedure create_l1 [2020-10-13 19:43:44,648 INFO L130 BoogieDeclarations]: Found specification of procedure l1_event [2020-10-13 19:43:44,648 INFO L130 BoogieDeclarations]: Found specification of procedure mISDN_initdchannel [2020-10-13 19:43:44,648 INFO L130 BoogieDeclarations]: Found specification of procedure mISDN_initbchannel [2020-10-13 19:43:44,648 INFO L130 BoogieDeclarations]: Found specification of procedure mISDN_freedchannel [2020-10-13 19:43:44,648 INFO L130 BoogieDeclarations]: Found specification of procedure mISDN_clear_bchannel [2020-10-13 19:43:44,649 INFO L130 BoogieDeclarations]: Found specification of procedure mISDN_freebchannel [2020-10-13 19:43:44,649 INFO L130 BoogieDeclarations]: Found specification of procedure mISDN_ctrl_bchannel [2020-10-13 19:43:44,649 INFO L130 BoogieDeclarations]: Found specification of procedure queue_ch_frame [2020-10-13 19:43:44,649 INFO L130 BoogieDeclarations]: Found specification of procedure dchannel_senddata [2020-10-13 19:43:44,649 INFO L130 BoogieDeclarations]: Found specification of procedure bchannel_senddata [2020-10-13 19:43:44,649 INFO L130 BoogieDeclarations]: Found specification of procedure bchannel_get_rxbuf [2020-10-13 19:43:44,649 INFO L130 BoogieDeclarations]: Found specification of procedure recv_Dchannel [2020-10-13 19:43:44,649 INFO L130 BoogieDeclarations]: Found specification of procedure recv_Echannel [2020-10-13 19:43:44,649 INFO L130 BoogieDeclarations]: Found specification of procedure recv_Bchannel [2020-10-13 19:43:44,650 INFO L130 BoogieDeclarations]: Found specification of procedure get_next_bframe [2020-10-13 19:43:44,650 INFO L130 BoogieDeclarations]: Found specification of procedure get_next_dframe [2020-10-13 19:43:44,650 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-13 19:43:44,650 INFO L130 BoogieDeclarations]: Found specification of procedure symbolic [2020-10-13 19:43:44,650 INFO L130 BoogieDeclarations]: Found specification of procedure hfcsusb_ph_command [2020-10-13 19:43:44,650 INFO L130 BoogieDeclarations]: Found specification of procedure release_hw [2020-10-13 19:43:44,650 INFO L130 BoogieDeclarations]: Found specification of procedure reset_hfcsusb [2020-10-13 19:43:44,650 INFO L130 BoogieDeclarations]: Found specification of procedure setPortMode [2020-10-13 19:43:44,651 INFO L130 BoogieDeclarations]: Found specification of procedure hfcsusb_start_endpoint [2020-10-13 19:43:44,651 INFO L130 BoogieDeclarations]: Found specification of procedure hfcsusb_stop_endpoint [2020-10-13 19:43:44,651 INFO L130 BoogieDeclarations]: Found specification of procedure hfcsusb_setup_bch [2020-10-13 19:43:44,651 INFO L130 BoogieDeclarations]: Found specification of procedure deactivate_bchannel [2020-10-13 19:43:44,651 INFO L130 BoogieDeclarations]: Found specification of procedure hfcsusb_ph_info [2020-10-13 19:43:44,651 INFO L130 BoogieDeclarations]: Found specification of procedure ctrl_start_transfer [2020-10-13 19:43:44,651 INFO L130 BoogieDeclarations]: Found specification of procedure write_reg [2020-10-13 19:43:44,651 INFO L130 BoogieDeclarations]: Found specification of procedure ctrl_complete [2020-10-13 19:43:44,651 INFO L130 BoogieDeclarations]: Found specification of procedure set_led_bit [2020-10-13 19:43:44,651 INFO L130 BoogieDeclarations]: Found specification of procedure handle_led [2020-10-13 19:43:44,652 INFO L130 BoogieDeclarations]: Found specification of procedure hfcusb_l2l1B [2020-10-13 19:43:44,652 INFO L130 BoogieDeclarations]: Found specification of procedure hfcusb_l2l1D [2020-10-13 19:43:44,652 INFO L130 BoogieDeclarations]: Found specification of procedure hfc_l1callback [2020-10-13 19:43:44,652 INFO L130 BoogieDeclarations]: Found specification of procedure open_dchannel [2020-10-13 19:43:44,653 INFO L130 BoogieDeclarations]: Found specification of procedure open_bchannel [2020-10-13 19:43:44,653 INFO L130 BoogieDeclarations]: Found specification of procedure channel_ctrl [2020-10-13 19:43:44,654 INFO L130 BoogieDeclarations]: Found specification of procedure hfc_dctrl [2020-10-13 19:43:44,654 INFO L130 BoogieDeclarations]: Found specification of procedure ph_state_te [2020-10-13 19:43:44,654 INFO L130 BoogieDeclarations]: Found specification of procedure ph_state_nt [2020-10-13 19:43:44,654 INFO L130 BoogieDeclarations]: Found specification of procedure ph_state [2020-10-13 19:43:44,654 INFO L130 BoogieDeclarations]: Found specification of procedure channel_bctrl [2020-10-13 19:43:44,654 INFO L130 BoogieDeclarations]: Found specification of procedure hfcsusb_rx_frame [2020-10-13 19:43:44,654 INFO L130 BoogieDeclarations]: Found specification of procedure fill_isoc_urb [2020-10-13 19:43:44,654 INFO L130 BoogieDeclarations]: Found specification of procedure rx_iso_complete [2020-10-13 19:43:44,654 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-13 19:43:44,655 INFO L130 BoogieDeclarations]: Found specification of procedure rx_int_complete [2020-10-13 19:43:44,655 INFO L130 BoogieDeclarations]: Found specification of procedure tx_iso_complete [2020-10-13 19:43:44,655 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2020-10-13 19:43:44,655 INFO L130 BoogieDeclarations]: Found specification of procedure start_isoc_chain [2020-10-13 19:43:44,655 INFO L130 BoogieDeclarations]: Found specification of procedure stop_iso_gracefull [2020-10-13 19:43:44,655 INFO L130 BoogieDeclarations]: Found specification of procedure stop_int_gracefull [2020-10-13 19:43:44,655 INFO L130 BoogieDeclarations]: Found specification of procedure start_int_fifo [2020-10-13 19:43:44,655 INFO L130 BoogieDeclarations]: Found specification of procedure setup_hfcsusb [2020-10-13 19:43:44,655 INFO L130 BoogieDeclarations]: Found specification of procedure hfc_bctrl [2020-10-13 19:43:44,656 INFO L130 BoogieDeclarations]: Found specification of procedure setup_instance [2020-10-13 19:43:44,656 INFO L130 BoogieDeclarations]: Found specification of procedure hfcsusb_probe [2020-10-13 19:43:44,656 INFO L130 BoogieDeclarations]: Found specification of procedure hfcsusb_disconnect [2020-10-13 19:43:44,656 INFO L130 BoogieDeclarations]: Found specification of procedure hfcsusb_drv_init [2020-10-13 19:43:44,656 INFO L130 BoogieDeclarations]: Found specification of procedure hfcsusb_drv_exit [2020-10-13 19:43:44,656 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize [2020-10-13 19:43:44,656 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2020-10-13 19:43:44,657 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-13 19:43:44,657 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_some_page [2020-10-13 19:43:44,657 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags_and_return_some_page [2020-10-13 19:43:44,657 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_nonatomic [2020-10-13 19:43:44,657 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_trylock [2020-10-13 19:43:44,657 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_bool [2020-10-13 19:43:44,657 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_long [2020-10-13 19:43:44,658 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-10-13 19:43:44,658 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-13 19:43:44,658 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-13 19:43:44,658 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2020-10-13 19:43:44,658 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-13 19:43:44,658 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2020-10-13 19:43:44,658 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2020-10-13 19:43:44,659 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2020-10-13 19:43:44,659 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2020-10-13 19:43:45,951 INFO L732 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2020-10-13 19:43:58,525 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-13 19:43:58,525 INFO L295 CfgBuilder]: Removed 0 assume(true) statements. [2020-10-13 19:43:58,535 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 07:43:58 BoogieIcfgContainer [2020-10-13 19:43:58,535 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-13 19:43:58,536 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-13 19:43:58,536 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-13 19:43:58,539 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-13 19:43:58,540 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 07:43:40" (1/3) ... [2020-10-13 19:43:58,541 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1030f962 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 07:43:58, skipping insertion in model container [2020-10-13 19:43:58,541 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:43:44" (2/3) ... [2020-10-13 19:43:58,541 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1030f962 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 07:43:58, skipping insertion in model container [2020-10-13 19:43:58,541 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 07:43:58" (3/3) ... [2020-10-13 19:43:58,543 INFO L109 eAbstractionObserver]: Analyzing ICFG 43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-drivers--isdn--hardware--mISDN--hfcsusb.ko-entry_point.cil.out.i [2020-10-13 19:43:58,554 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-13 19:43:58,564 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-13 19:43:58,579 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-13 19:43:58,609 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-10-13 19:43:58,609 INFO L376 AbstractCegarLoop]: Hoare is true [2020-10-13 19:43:58,609 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-13 19:43:58,609 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-13 19:43:58,609 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-13 19:43:58,610 INFO L380 AbstractCegarLoop]: Difference is false [2020-10-13 19:43:58,610 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-13 19:43:58,610 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-13 19:43:58,655 INFO L276 IsEmpty]: Start isEmpty. Operand 1610 states. [2020-10-13 19:43:58,665 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2020-10-13 19:43:58,665 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 19:43:58,666 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 19:43:58,667 INFO L427 AbstractCegarLoop]: === Iteration 1 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 19:43:58,673 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 19:43:58,673 INFO L82 PathProgramCache]: Analyzing trace with hash 1157232869, now seen corresponding path program 1 times [2020-10-13 19:43:58,682 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 19:43:58,683 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [588551333] [2020-10-13 19:43:58,683 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 19:43:59,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 19:44:00,214 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 19:44:00,959 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 19:44:01,813 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 19:44:09,652 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 19:44:37,439 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 19:44:37,440 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 61 [2020-10-13 19:44:37,440 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-13 19:44:37,440 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 37645 [2020-10-13 19:44:37,443 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 19:44:37,443 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 19:44:37,443 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 41 [2020-10-13 19:44:37,443 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-13 19:44:37,443 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-13 19:44:47,068 WARN L193 SmtUtils]: Spent 9.28 s on a formula simplification that was a NOOP. DAG size: 1531 [2020-10-13 19:44:47,076 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 19:44:47,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 19:44:47,145 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 19:44:50,754 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 19:44:50,755 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 19:44:50,755 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 19:44:50,756 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3632 [2020-10-13 19:44:50,756 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 19:44:50,756 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 19:44:50,757 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 19:44:50,757 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 19:44:50,757 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 19:44:51,101 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-13 19:44:51,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 19:44:51,109 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 19:44:51,115 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 19:44:51,115 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 19:44:51,116 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 19:44:51,116 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-13 19:44:51,116 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 19:44:51,116 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 19:44:51,116 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 19:44:51,117 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 19:44:51,117 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 19:44:51,132 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-13 19:44:51,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 19:44:51,140 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 19:44:51,143 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 19:44:51,144 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-13 19:44:51,144 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 19:44:51,144 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-13 19:44:51,144 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 19:44:51,144 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 19:44:51,145 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 19:44:51,145 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 19:44:51,145 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 19:44:51,152 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-10-13 19:44:51,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 19:44:51,161 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 19:44:51,165 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 19:44:51,166 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 19:44:51,166 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 19:44:51,166 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-13 19:44:51,166 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 19:44:51,166 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 19:44:51,167 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 19:44:51,167 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 19:44:51,167 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 19:44:51,215 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-13 19:44:51,216 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [588551333] [2020-10-13 19:44:51,218 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 19:44:51,218 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-13 19:44:51,219 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [114385609] [2020-10-13 19:44:51,224 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-13 19:44:51,224 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 19:44:51,239 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-13 19:44:51,239 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-13 19:44:51,242 INFO L87 Difference]: Start difference. First operand 1610 states. Second operand 5 states. [2020-10-13 19:44:59,998 WARN L193 SmtUtils]: Spent 8.69 s on a formula simplification that was a NOOP. DAG size: 1534 [2020-10-13 19:45:29,088 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 19:45:29,088 INFO L93 Difference]: Finished difference Result 1463 states and 2015 transitions. [2020-10-13 19:45:29,089 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-13 19:45:29,091 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 41 [2020-10-13 19:45:29,091 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 19:45:29,116 INFO L225 Difference]: With dead ends: 1463 [2020-10-13 19:45:29,116 INFO L226 Difference]: Without dead ends: 783 [2020-10-13 19:45:29,132 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 18.1s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-13 19:45:29,155 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 783 states. [2020-10-13 19:45:29,522 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 783 to 633. [2020-10-13 19:45:29,523 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 633 states. [2020-10-13 19:45:29,528 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 633 states to 633 states and 820 transitions. [2020-10-13 19:45:29,530 INFO L78 Accepts]: Start accepts. Automaton has 633 states and 820 transitions. Word has length 41 [2020-10-13 19:45:29,531 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 19:45:29,531 INFO L479 AbstractCegarLoop]: Abstraction has 633 states and 820 transitions. [2020-10-13 19:45:29,531 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-13 19:45:29,531 INFO L276 IsEmpty]: Start isEmpty. Operand 633 states and 820 transitions. [2020-10-13 19:45:29,535 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2020-10-13 19:45:29,535 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 19:45:29,536 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 19:45:29,536 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-13 19:45:29,536 INFO L427 AbstractCegarLoop]: === Iteration 2 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 19:45:29,537 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 19:45:29,537 INFO L82 PathProgramCache]: Analyzing trace with hash -660836133, now seen corresponding path program 1 times [2020-10-13 19:45:29,537 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 19:45:29,537 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [542101657] [2020-10-13 19:45:29,537 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 19:45:29,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 19:45:29,979 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 19:45:30,334 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 19:45:30,768 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 19:45:37,513 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 19:45:37,513 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 67 [2020-10-13 19:45:37,513 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-13 19:45:37,513 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7730 [2020-10-13 19:45:37,514 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 19:45:37,514 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 19:45:37,514 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 50 [2020-10-13 19:45:37,514 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-13 19:45:37,514 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 19:45:46,396 WARN L193 SmtUtils]: Spent 8.66 s on a formula simplification that was a NOOP. DAG size: 1531 [2020-10-13 19:45:46,400 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 19:45:46,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 19:45:46,461 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 19:45:50,181 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 19:45:50,182 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 19:45:50,182 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 19:45:50,182 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3739 [2020-10-13 19:45:50,183 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 19:45:50,183 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 19:45:50,183 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 19:45:50,183 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 19:45:50,183 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 19:45:50,384 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-13 19:45:50,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 19:45:50,392 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 19:45:50,397 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 19:45:50,397 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 19:45:50,397 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 19:45:50,398 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-13 19:45:50,398 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 19:45:50,398 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 19:45:50,398 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 19:45:50,398 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 19:45:50,399 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 19:45:50,409 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-13 19:45:50,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 19:45:50,417 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 19:45:50,419 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 19:45:50,419 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-13 19:45:50,419 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 19:45:50,420 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-13 19:45:50,420 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 19:45:50,420 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 19:45:50,420 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 19:45:50,420 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 19:45:50,421 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 19:45:50,429 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-10-13 19:45:50,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 19:45:50,434 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 19:45:50,438 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 19:45:50,439 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 19:45:50,439 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 19:45:50,439 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-13 19:45:50,439 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 19:45:50,439 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 19:45:50,439 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 19:45:50,440 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 19:45:50,440 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 19:45:50,473 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-10-13 19:45:50,473 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [542101657] [2020-10-13 19:45:50,474 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 19:45:50,474 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-13 19:45:50,474 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1923700449] [2020-10-13 19:45:50,476 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-13 19:45:50,477 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 19:45:50,477 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-13 19:45:50,478 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-13 19:45:50,478 INFO L87 Difference]: Start difference. First operand 633 states and 820 transitions. Second operand 5 states. [2020-10-13 19:45:59,163 WARN L193 SmtUtils]: Spent 8.64 s on a formula simplification that was a NOOP. DAG size: 1534 [2020-10-13 19:46:28,142 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 19:46:28,143 INFO L93 Difference]: Finished difference Result 1445 states and 1956 transitions. [2020-10-13 19:46:28,143 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-13 19:46:28,144 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 47 [2020-10-13 19:46:28,144 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 19:46:28,164 INFO L225 Difference]: With dead ends: 1445 [2020-10-13 19:46:28,164 INFO L226 Difference]: Without dead ends: 824 [2020-10-13 19:46:28,170 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 17.4s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-13 19:46:28,175 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 824 states. [2020-10-13 19:46:28,717 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 824 to 674. [2020-10-13 19:46:28,717 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 674 states. [2020-10-13 19:46:28,721 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 674 states to 674 states and 883 transitions. [2020-10-13 19:46:28,722 INFO L78 Accepts]: Start accepts. Automaton has 674 states and 883 transitions. Word has length 47 [2020-10-13 19:46:28,722 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 19:46:28,722 INFO L479 AbstractCegarLoop]: Abstraction has 674 states and 883 transitions. [2020-10-13 19:46:28,722 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-13 19:46:28,723 INFO L276 IsEmpty]: Start isEmpty. Operand 674 states and 883 transitions. [2020-10-13 19:46:28,727 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2020-10-13 19:46:28,728 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 19:46:28,728 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 19:46:28,728 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-13 19:46:28,729 INFO L427 AbstractCegarLoop]: === Iteration 3 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 19:46:28,729 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 19:46:28,729 INFO L82 PathProgramCache]: Analyzing trace with hash 2142666694, now seen corresponding path program 1 times [2020-10-13 19:46:28,729 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 19:46:28,730 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [919736381] [2020-10-13 19:46:28,730 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 19:46:28,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 19:46:29,187 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 19:46:29,693 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 19:46:30,156 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 19:46:31,105 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 19:46:36,294 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 19:46:54,012 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 19:46:54,013 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 92 [2020-10-13 19:46:54,013 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-13 19:46:54,013 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25076 [2020-10-13 19:46:54,013 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 19:46:54,013 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 19:46:54,014 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 56 [2020-10-13 19:46:54,014 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-13 19:46:54,014 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 19:47:03,146 WARN L193 SmtUtils]: Spent 8.86 s on a formula simplification that was a NOOP. DAG size: 1531 [2020-10-13 19:47:03,149 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 19:47:03,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 19:47:03,226 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 19:47:06,417 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 19:47:06,417 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 19:47:06,418 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 19:47:06,418 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3210 [2020-10-13 19:47:06,418 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 19:47:06,418 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 19:47:06,418 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 19:47:06,418 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 19:47:06,419 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 19:47:06,665 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-13 19:47:06,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 19:47:06,673 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 19:47:06,677 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 19:47:06,677 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 19:47:06,677 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 19:47:06,678 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-13 19:47:06,678 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 19:47:06,678 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 19:47:06,678 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 19:47:06,678 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 19:47:06,679 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 19:47:06,685 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-13 19:47:06,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 19:47:06,690 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 19:47:06,694 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 19:47:06,695 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-13 19:47:06,695 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 19:47:06,695 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-13 19:47:06,695 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 19:47:06,695 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 19:47:06,696 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 19:47:06,696 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 19:47:06,696 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 19:47:06,703 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-10-13 19:47:06,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 19:47:06,828 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 19:47:06,839 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 19:47:06,840 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 19:47:06,840 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 19:47:06,840 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 34 [2020-10-13 19:47:06,840 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 19:47:06,841 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 19:47:06,841 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 19:47:06,841 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 19:47:06,841 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 19:47:06,901 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2020-10-13 19:47:06,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 19:47:06,911 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 19:47:06,922 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 19:47:06,922 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 19:47:06,922 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 19:47:06,922 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-13 19:47:06,922 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 19:47:06,923 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 19:47:06,923 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-13 19:47:06,923 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 19:47:06,923 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 19:47:06,988 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-10-13 19:47:06,991 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [919736381] [2020-10-13 19:47:06,992 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 19:47:06,992 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-13 19:47:06,992 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [42366182] [2020-10-13 19:47:06,993 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-13 19:47:06,993 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 19:47:06,993 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-13 19:47:06,993 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-10-13 19:47:06,994 INFO L87 Difference]: Start difference. First operand 674 states and 883 transitions. Second operand 6 states. [2020-10-13 19:47:15,967 WARN L193 SmtUtils]: Spent 8.92 s on a formula simplification that was a NOOP. DAG size: 1540