/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_bitvector_linux-3.16-rc1.tar.xz-43_2a-drivers--usb--host--max3421-hcd.ko-entry_point.cil.out.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-adbd35c [2020-10-13 19:40:13,920 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-13 19:40:13,923 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-13 19:40:13,968 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-13 19:40:13,968 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-13 19:40:13,979 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-13 19:40:13,980 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-13 19:40:13,983 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-13 19:40:13,985 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-13 19:40:13,989 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-13 19:40:13,990 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-13 19:40:13,992 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-13 19:40:13,993 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-13 19:40:13,995 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-13 19:40:13,998 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-13 19:40:14,000 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-13 19:40:14,001 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-13 19:40:14,002 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-13 19:40:14,004 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-13 19:40:14,010 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-13 19:40:14,014 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-13 19:40:14,015 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-13 19:40:14,016 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-13 19:40:14,017 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-13 19:40:14,022 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-13 19:40:14,022 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-13 19:40:14,023 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-13 19:40:14,026 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-13 19:40:14,027 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-13 19:40:14,028 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-13 19:40:14,028 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-13 19:40:14,029 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-13 19:40:14,029 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-13 19:40:14,030 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-13 19:40:14,031 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-13 19:40:14,031 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-13 19:40:14,032 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-13 19:40:14,032 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-13 19:40:14,033 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-13 19:40:14,033 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-13 19:40:14,035 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-13 19:40:14,035 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 19:40:14,079 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-13 19:40:14,080 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-13 19:40:14,081 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-13 19:40:14,082 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-13 19:40:14,082 INFO L138 SettingsManager]: * Use SBE=true [2020-10-13 19:40:14,082 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-13 19:40:14,083 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-13 19:40:14,083 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-13 19:40:14,083 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-13 19:40:14,083 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-13 19:40:14,084 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-13 19:40:14,085 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-13 19:40:14,085 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-13 19:40:14,085 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-13 19:40:14,086 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-13 19:40:14,086 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-13 19:40:14,086 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-13 19:40:14,086 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-13 19:40:14,087 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-13 19:40:14,087 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-13 19:40:14,087 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-13 19:40:14,087 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-13 19:40:14,087 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-13 19:40:14,088 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-13 19:40:14,088 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-13 19:40:14,088 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-13 19:40:14,088 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-10-13 19:40:14,088 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 19:40:14,382 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-13 19:40:14,395 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-13 19:40:14,398 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-13 19:40:14,400 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-13 19:40:14,400 INFO L275 PluginConnector]: CDTParser initialized [2020-10-13 19:40:14,401 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-linux-3.16-rc1/43_2a_bitvector_linux-3.16-rc1.tar.xz-43_2a-drivers--usb--host--max3421-hcd.ko-entry_point.cil.out.i [2020-10-13 19:40:14,462 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/f97406ed2/6db73187b9c4428d9c45561fb014b4eb/FLAGf9c5fd6d3 [2020-10-13 19:40:15,200 INFO L306 CDTParser]: Found 1 translation units. [2020-10-13 19:40:15,201 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/ldv-linux-3.16-rc1/43_2a_bitvector_linux-3.16-rc1.tar.xz-43_2a-drivers--usb--host--max3421-hcd.ko-entry_point.cil.out.i [2020-10-13 19:40:15,241 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/f97406ed2/6db73187b9c4428d9c45561fb014b4eb/FLAGf9c5fd6d3 [2020-10-13 19:40:15,304 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/f97406ed2/6db73187b9c4428d9c45561fb014b4eb [2020-10-13 19:40:15,312 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-13 19:40:15,314 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-13 19:40:15,315 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-13 19:40:15,315 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-13 19:40:15,318 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-13 19:40:15,319 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 07:40:15" (1/1) ... [2020-10-13 19:40:15,322 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@688805ae and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:40:15, skipping insertion in model container [2020-10-13 19:40:15,322 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 07:40:15" (1/1) ... [2020-10-13 19:40:15,330 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-13 19:40:15,462 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-13 19:40:16,009 WARN L1191 CHandler]: Detected problem Invalid redeclaration of the name show at C: (*show)(struct kobject___0 * , struct attribute___0 * , char * ) [3703] [2020-10-13 19:40:16,010 WARN L1191 CHandler]: Detected problem Invalid redeclaration of the name store at C: (*store)(struct kobject___0 * , struct attribute___0 * , char const * , size_t ) [3704-3705] [2020-10-13 19:40:16,828 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-13 19:40:16,850 INFO L203 MainTranslator]: Completed pre-run [2020-10-13 19:40:16,938 WARN L1191 CHandler]: Detected problem Invalid redeclaration of the name show at C: (*show)(struct kobject___0 * , struct attribute___0 * , char * ) [3703] [2020-10-13 19:40:16,939 WARN L1191 CHandler]: Detected problem Invalid redeclaration of the name store at C: (*store)(struct kobject___0 * , struct attribute___0 * , char const * , size_t ) [3704-3705] [2020-10-13 19:40:17,259 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-13 19:40:17,500 INFO L208 MainTranslator]: Completed translation [2020-10-13 19:40:17,500 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:40:17 WrapperNode [2020-10-13 19:40:17,501 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-13 19:40:17,501 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-13 19:40:17,502 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-13 19:40:17,502 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-13 19:40:17,517 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:40:17" (1/1) ... [2020-10-13 19:40:17,517 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:40:17" (1/1) ... [2020-10-13 19:40:17,590 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:40:17" (1/1) ... [2020-10-13 19:40:17,591 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:40:17" (1/1) ... [2020-10-13 19:40:17,704 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:40:17" (1/1) ... [2020-10-13 19:40:17,723 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:40:17" (1/1) ... [2020-10-13 19:40:17,747 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:40:17" (1/1) ... [2020-10-13 19:40:17,774 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-13 19:40:17,775 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-13 19:40:17,776 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-13 19:40:17,776 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-13 19:40:17,777 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:40:17" (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 19:40:17,859 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-13 19:40:17,860 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-13 19:40:17,861 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2020-10-13 19:40:17,861 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2020-10-13 19:40:17,862 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add_tail [2020-10-13 19:40:17,863 INFO L138 BoogieDeclarations]: Found implementation of procedure list_move_tail [2020-10-13 19:40:17,864 INFO L138 BoogieDeclarations]: Found implementation of procedure list_empty [2020-10-13 19:40:17,864 INFO L138 BoogieDeclarations]: Found implementation of procedure get_current [2020-10-13 19:40:17,864 INFO L138 BoogieDeclarations]: Found implementation of procedure ERR_PTR [2020-10-13 19:40:17,864 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2020-10-13 19:40:17,865 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2020-10-13 19:40:17,865 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irqrestore_8 [2020-10-13 19:40:17,865 INFO L138 BoogieDeclarations]: Found implementation of procedure kobject_name [2020-10-13 19:40:17,870 INFO L138 BoogieDeclarations]: Found implementation of procedure __kmalloc [2020-10-13 19:40:17,870 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kmalloc_12 [2020-10-13 19:40:17,870 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-10-13 19:40:17,871 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2020-10-13 19:40:17,872 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2020-10-13 19:40:17,872 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2020-10-13 19:40:17,873 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_ulong [2020-10-13 19:40:17,873 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2020-10-13 19:40:17,874 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2020-10-13 19:40:17,874 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2020-10-13 19:40:17,874 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_trap [2020-10-13 19:40:17,874 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_name [2020-10-13 19:40:17,874 INFO L138 BoogieDeclarations]: Found implementation of procedure to_spi_device [2020-10-13 19:40:17,875 INFO L138 BoogieDeclarations]: Found implementation of procedure spi_unregister_driver [2020-10-13 19:40:17,875 INFO L138 BoogieDeclarations]: Found implementation of procedure spi_message_init [2020-10-13 19:40:17,875 INFO L138 BoogieDeclarations]: Found implementation of procedure spi_message_add_tail [2020-10-13 19:40:17,875 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_num [2020-10-13 19:40:17,875 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_type [2020-10-13 19:40:17,875 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_xfer_control [2020-10-13 19:40:17,876 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_maxp [2020-10-13 19:40:17,876 INFO L138 BoogieDeclarations]: Found implementation of procedure request_irq [2020-10-13 19:40:17,876 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_urb_dir_in [2020-10-13 19:40:17,876 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_urb_dir_out [2020-10-13 19:40:17,878 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_maxpacket [2020-10-13 19:40:17,878 INFO L138 BoogieDeclarations]: Found implementation of procedure frame_diff [2020-10-13 19:40:17,879 INFO L138 BoogieDeclarations]: Found implementation of procedure hcd_to_max3421 [2020-10-13 19:40:17,879 INFO L138 BoogieDeclarations]: Found implementation of procedure max3421_to_hcd [2020-10-13 19:40:17,881 INFO L138 BoogieDeclarations]: Found implementation of procedure spi_rd8 [2020-10-13 19:40:17,881 INFO L138 BoogieDeclarations]: Found implementation of procedure spi_wr8 [2020-10-13 19:40:17,881 INFO L138 BoogieDeclarations]: Found implementation of procedure spi_rd_buf [2020-10-13 19:40:17,881 INFO L138 BoogieDeclarations]: Found implementation of procedure spi_wr_buf [2020-10-13 19:40:17,881 INFO L138 BoogieDeclarations]: Found implementation of procedure max3421_set_speed [2020-10-13 19:40:17,881 INFO L138 BoogieDeclarations]: Found implementation of procedure max3421_set_address [2020-10-13 19:40:17,882 INFO L138 BoogieDeclarations]: Found implementation of procedure max3421_ctrl_setup [2020-10-13 19:40:17,883 INFO L138 BoogieDeclarations]: Found implementation of procedure max3421_transfer_in [2020-10-13 19:40:17,883 INFO L138 BoogieDeclarations]: Found implementation of procedure max3421_transfer_out [2020-10-13 19:40:17,883 INFO L138 BoogieDeclarations]: Found implementation of procedure max3421_next_transfer [2020-10-13 19:40:17,883 INFO L138 BoogieDeclarations]: Found implementation of procedure max3421_select_and_start_urb [2020-10-13 19:40:17,884 INFO L138 BoogieDeclarations]: Found implementation of procedure max3421_check_unlink [2020-10-13 19:40:17,884 INFO L138 BoogieDeclarations]: Found implementation of procedure max3421_slow_retransmit [2020-10-13 19:40:17,884 INFO L138 BoogieDeclarations]: Found implementation of procedure max3421_recv_data_available [2020-10-13 19:40:17,884 INFO L138 BoogieDeclarations]: Found implementation of procedure max3421_handle_error [2020-10-13 19:40:17,884 INFO L138 BoogieDeclarations]: Found implementation of procedure max3421_transfer_in_done [2020-10-13 19:40:17,884 INFO L138 BoogieDeclarations]: Found implementation of procedure max3421_transfer_out_done [2020-10-13 19:40:17,885 INFO L138 BoogieDeclarations]: Found implementation of procedure max3421_host_transfer_done [2020-10-13 19:40:17,885 INFO L138 BoogieDeclarations]: Found implementation of procedure max3421_detect_conn [2020-10-13 19:40:17,885 INFO L138 BoogieDeclarations]: Found implementation of procedure max3421_irq_handler [2020-10-13 19:40:17,885 INFO L138 BoogieDeclarations]: Found implementation of procedure max3421_handle_irqs [2020-10-13 19:40:17,886 INFO L138 BoogieDeclarations]: Found implementation of procedure max3421_reset_hcd [2020-10-13 19:40:17,886 INFO L138 BoogieDeclarations]: Found implementation of procedure max3421_urb_done [2020-10-13 19:40:17,886 INFO L138 BoogieDeclarations]: Found implementation of procedure max3421_spi_thread [2020-10-13 19:40:17,886 INFO L138 BoogieDeclarations]: Found implementation of procedure max3421_reset_port [2020-10-13 19:40:17,886 INFO L138 BoogieDeclarations]: Found implementation of procedure max3421_reset [2020-10-13 19:40:17,886 INFO L138 BoogieDeclarations]: Found implementation of procedure max3421_start [2020-10-13 19:40:17,887 INFO L138 BoogieDeclarations]: Found implementation of procedure max3421_stop [2020-10-13 19:40:17,887 INFO L138 BoogieDeclarations]: Found implementation of procedure max3421_urb_enqueue [2020-10-13 19:40:17,888 INFO L138 BoogieDeclarations]: Found implementation of procedure max3421_urb_dequeue [2020-10-13 19:40:17,889 INFO L138 BoogieDeclarations]: Found implementation of procedure max3421_endpoint_disable [2020-10-13 19:40:17,889 INFO L138 BoogieDeclarations]: Found implementation of procedure max3421_get_frame_number [2020-10-13 19:40:17,889 INFO L138 BoogieDeclarations]: Found implementation of procedure max3421_hub_status_data [2020-10-13 19:40:17,889 INFO L138 BoogieDeclarations]: Found implementation of procedure hub_descriptor [2020-10-13 19:40:17,889 INFO L138 BoogieDeclarations]: Found implementation of procedure max3421_gpout_set_value [2020-10-13 19:40:17,889 INFO L138 BoogieDeclarations]: Found implementation of procedure max3421_hub_control [2020-10-13 19:40:17,889 INFO L138 BoogieDeclarations]: Found implementation of procedure max3421_bus_suspend [2020-10-13 19:40:17,890 INFO L138 BoogieDeclarations]: Found implementation of procedure max3421_bus_resume [2020-10-13 19:40:17,890 INFO L138 BoogieDeclarations]: Found implementation of procedure max3421_map_urb_for_dma [2020-10-13 19:40:17,890 INFO L138 BoogieDeclarations]: Found implementation of procedure max3421_unmap_urb_for_dma [2020-10-13 19:40:17,890 INFO L138 BoogieDeclarations]: Found implementation of procedure max3421_probe [2020-10-13 19:40:17,890 INFO L138 BoogieDeclarations]: Found implementation of procedure max3421_remove [2020-10-13 19:40:17,890 INFO L138 BoogieDeclarations]: Found implementation of procedure max3421_driver_init [2020-10-13 19:40:17,890 INFO L138 BoogieDeclarations]: Found implementation of procedure max3421_driver_exit [2020-10-13 19:40:17,891 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_irq_1 [2020-10-13 19:40:17,891 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_suitable_irq_1 [2020-10-13 19:40:17,891 INFO L138 BoogieDeclarations]: Found implementation of procedure reg_check_1 [2020-10-13 19:40:17,891 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize_hc_driver_3 [2020-10-13 19:40:17,891 INFO L138 BoogieDeclarations]: Found implementation of procedure choose_interrupt_1 [2020-10-13 19:40:17,891 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize_spi_driver_2 [2020-10-13 19:40:17,891 INFO L138 BoogieDeclarations]: Found implementation of procedure disable_suitable_irq_1 [2020-10-13 19:40:17,892 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-13 19:40:17,892 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2020-10-13 19:40:17,892 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2020-10-13 19:40:17,892 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2020-10-13 19:40:17,892 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_request_irq_19 [2020-10-13 19:40:17,892 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_irq_20 [2020-10-13 19:40:17,892 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags [2020-10-13 19:40:17,893 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags_and_return_some_page [2020-10-13 19:40:17,893 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_nonatomic [2020-10-13 19:40:17,893 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock [2020-10-13 19:40:17,893 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock [2020-10-13 19:40:17,893 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_trylock [2020-10-13 19:40:17,893 INFO L138 BoogieDeclarations]: Found implementation of procedure __dynamic_dev_dbg [2020-10-13 19:40:17,893 INFO L138 BoogieDeclarations]: Found implementation of procedure __list_add [2020-10-13 19:40:17,894 INFO L138 BoogieDeclarations]: Found implementation of procedure __list_del_entry [2020-10-13 19:40:17,894 INFO L138 BoogieDeclarations]: Found implementation of procedure __might_sleep [2020-10-13 19:40:17,894 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2020-10-13 19:40:17,894 INFO L138 BoogieDeclarations]: Found implementation of procedure _cond_resched [2020-10-13 19:40:17,894 INFO L138 BoogieDeclarations]: Found implementation of procedure _dev_info [2020-10-13 19:40:17,894 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_unlock_irqrestore [2020-10-13 19:40:17,895 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_err [2020-10-13 19:40:17,895 INFO L138 BoogieDeclarations]: Found implementation of procedure disable_irq_nosync [2020-10-13 19:40:17,895 INFO L138 BoogieDeclarations]: Found implementation of procedure driver_unregister [2020-10-13 19:40:17,895 INFO L138 BoogieDeclarations]: Found implementation of procedure enable_irq [2020-10-13 19:40:17,896 INFO L138 BoogieDeclarations]: Found implementation of procedure free_irq [2020-10-13 19:40:17,896 INFO L138 BoogieDeclarations]: Found implementation of procedure kmem_cache_alloc [2020-10-13 19:40:17,896 INFO L138 BoogieDeclarations]: Found implementation of procedure kthread_create_on_node [2020-10-13 19:40:17,897 INFO L138 BoogieDeclarations]: Found implementation of procedure kthread_should_stop [2020-10-13 19:40:17,897 INFO L138 BoogieDeclarations]: Found implementation of procedure kthread_stop [2020-10-13 19:40:17,897 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2020-10-13 19:40:17,898 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize [2020-10-13 19:40:17,898 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_some_page [2020-10-13 19:40:17,898 INFO L138 BoogieDeclarations]: Found implementation of procedure list_del [2020-10-13 19:40:17,899 INFO L138 BoogieDeclarations]: Found implementation of procedure msleep [2020-10-13 19:40:17,902 INFO L138 BoogieDeclarations]: Found implementation of procedure printk [2020-10-13 19:40:17,902 INFO L138 BoogieDeclarations]: Found implementation of procedure request_threaded_irq [2020-10-13 19:40:17,902 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule [2020-10-13 19:40:17,903 INFO L138 BoogieDeclarations]: Found implementation of procedure spi_register_driver [2020-10-13 19:40:17,903 INFO L138 BoogieDeclarations]: Found implementation of procedure spi_setup [2020-10-13 19:40:17,903 INFO L138 BoogieDeclarations]: Found implementation of procedure spi_sync [2020-10-13 19:40:17,903 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_add_hcd [2020-10-13 19:40:17,904 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_create_hcd [2020-10-13 19:40:17,904 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_hcd_check_unlink_urb [2020-10-13 19:40:17,904 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_hcd_giveback_urb [2020-10-13 19:40:17,904 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_hcd_link_urb_to_ep [2020-10-13 19:40:17,905 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_hcd_resume_root_hub [2020-10-13 19:40:17,905 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_hcd_unlink_urb_from_ep [2020-10-13 19:40:17,905 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_put_hcd [2020-10-13 19:40:17,905 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_remove_hcd [2020-10-13 19:40:17,906 INFO L138 BoogieDeclarations]: Found implementation of procedure wake_up_process [2020-10-13 19:40:17,914 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2020-10-13 19:40:17,914 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2020-10-13 19:40:17,914 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2020-10-13 19:40:17,914 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2020-10-13 19:40:17,915 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-10-13 19:40:17,915 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2020-10-13 19:40:17,915 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock [2020-10-13 19:40:17,915 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock [2020-10-13 19:40:17,916 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2020-10-13 19:40:17,916 INFO L130 BoogieDeclarations]: Found specification of procedure printk [2020-10-13 19:40:17,916 INFO L130 BoogieDeclarations]: Found specification of procedure __dynamic_dev_dbg [2020-10-13 19:40:17,916 INFO L130 BoogieDeclarations]: Found specification of procedure __might_sleep [2020-10-13 19:40:17,916 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2020-10-13 19:40:17,916 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-10-13 19:40:17,916 INFO L130 BoogieDeclarations]: Found specification of procedure __list_add [2020-10-13 19:40:17,916 INFO L130 BoogieDeclarations]: Found specification of procedure list_add_tail [2020-10-13 19:40:17,917 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-10-13 19:40:17,917 INFO L130 BoogieDeclarations]: Found specification of procedure __list_del_entry [2020-10-13 19:40:17,917 INFO L130 BoogieDeclarations]: Found specification of procedure list_del [2020-10-13 19:40:17,917 INFO L130 BoogieDeclarations]: Found specification of procedure list_move_tail [2020-10-13 19:40:17,917 INFO L130 BoogieDeclarations]: Found specification of procedure list_empty [2020-10-13 19:40:17,917 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2020-10-13 19:40:17,917 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2020-10-13 19:40:17,918 INFO L130 BoogieDeclarations]: Found specification of procedure get_current [2020-10-13 19:40:17,918 INFO L130 BoogieDeclarations]: Found specification of procedure memset [2020-10-13 19:40:17,918 INFO L130 BoogieDeclarations]: Found specification of procedure ERR_PTR [2020-10-13 19:40:17,919 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2020-10-13 19:40:17,919 INFO L130 BoogieDeclarations]: Found specification of procedure __xchg_wrong_size [2020-10-13 19:40:17,919 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2020-10-13 19:40:17,919 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_unlock_irqrestore [2020-10-13 19:40:17,919 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2020-10-13 19:40:17,919 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irqrestore_8 [2020-10-13 19:40:17,919 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2020-10-13 19:40:17,920 INFO L130 BoogieDeclarations]: Found specification of procedure kobject_name [2020-10-13 19:40:17,920 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2020-10-13 19:40:17,920 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2020-10-13 19:40:17,920 INFO L130 BoogieDeclarations]: Found specification of procedure __kmalloc [2020-10-13 19:40:17,920 INFO L130 BoogieDeclarations]: Found specification of procedure kmem_cache_alloc [2020-10-13 19:40:17,921 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kmalloc_12 [2020-10-13 19:40:17,921 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2020-10-13 19:40:17,921 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2020-10-13 19:40:17,921 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags [2020-10-13 19:40:17,921 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-10-13 19:40:17,921 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2020-10-13 19:40:17,921 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-13 19:40:17,921 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_u16 [2020-10-13 19:40:17,922 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_ulong [2020-10-13 19:40:17,922 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-13 19:40:17,922 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-10-13 19:40:17,922 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-10-13 19:40:17,922 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2020-10-13 19:40:17,922 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2020-10-13 19:40:17,922 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2020-10-13 19:40:17,923 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_ulong [2020-10-13 19:40:17,923 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2020-10-13 19:40:17,923 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2020-10-13 19:40:17,923 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_trap [2020-10-13 19:40:17,923 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_irq_1 [2020-10-13 19:40:17,923 INFO L130 BoogieDeclarations]: Found specification of procedure activate_suitable_irq_1 [2020-10-13 19:40:17,923 INFO L130 BoogieDeclarations]: Found specification of procedure reg_check_1 [2020-10-13 19:40:17,923 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize_hc_driver_3 [2020-10-13 19:40:17,924 INFO L130 BoogieDeclarations]: Found specification of procedure choose_interrupt_1 [2020-10-13 19:40:17,924 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize_spi_driver_2 [2020-10-13 19:40:17,924 INFO L130 BoogieDeclarations]: Found specification of procedure disable_suitable_irq_1 [2020-10-13 19:40:17,924 INFO L130 BoogieDeclarations]: Found specification of procedure driver_unregister [2020-10-13 19:40:17,924 INFO L130 BoogieDeclarations]: Found specification of procedure dev_name [2020-10-13 19:40:17,924 INFO L130 BoogieDeclarations]: Found specification of procedure dev_err [2020-10-13 19:40:17,924 INFO L130 BoogieDeclarations]: Found specification of procedure _dev_info [2020-10-13 19:40:17,925 INFO L130 BoogieDeclarations]: Found specification of procedure schedule [2020-10-13 19:40:17,925 INFO L130 BoogieDeclarations]: Found specification of procedure wake_up_process [2020-10-13 19:40:17,925 INFO L130 BoogieDeclarations]: Found specification of procedure _cond_resched [2020-10-13 19:40:17,925 INFO L130 BoogieDeclarations]: Found specification of procedure kthread_create_on_node [2020-10-13 19:40:17,925 INFO L130 BoogieDeclarations]: Found specification of procedure kthread_stop [2020-10-13 19:40:17,925 INFO L130 BoogieDeclarations]: Found specification of procedure kthread_should_stop [2020-10-13 19:40:17,925 INFO L130 BoogieDeclarations]: Found specification of procedure to_spi_device [2020-10-13 19:40:17,925 INFO L130 BoogieDeclarations]: Found specification of procedure spi_register_driver [2020-10-13 19:40:17,926 INFO L130 BoogieDeclarations]: Found specification of procedure spi_unregister_driver [2020-10-13 19:40:17,926 INFO L130 BoogieDeclarations]: Found specification of procedure spi_message_init [2020-10-13 19:40:17,926 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2020-10-13 19:40:17,926 INFO L130 BoogieDeclarations]: Found specification of procedure spi_message_add_tail [2020-10-13 19:40:17,926 INFO L130 BoogieDeclarations]: Found specification of procedure spi_setup [2020-10-13 19:40:17,926 INFO L130 BoogieDeclarations]: Found specification of procedure spi_sync [2020-10-13 19:40:17,926 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_num [2020-10-13 19:40:17,926 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-13 19:40:17,927 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_type [2020-10-13 19:40:17,927 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_xfer_control [2020-10-13 19:40:17,927 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_maxp [2020-10-13 19:40:17,927 INFO L130 BoogieDeclarations]: Found specification of procedure msleep [2020-10-13 19:40:17,927 INFO L130 BoogieDeclarations]: Found specification of procedure request_threaded_irq [2020-10-13 19:40:17,927 INFO L130 BoogieDeclarations]: Found specification of procedure request_irq [2020-10-13 19:40:17,927 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_request_irq_19 [2020-10-13 19:40:17,927 INFO L130 BoogieDeclarations]: Found specification of procedure free_irq [2020-10-13 19:40:17,928 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_irq_20 [2020-10-13 19:40:17,928 INFO L130 BoogieDeclarations]: Found specification of procedure disable_irq_nosync [2020-10-13 19:40:17,928 INFO L130 BoogieDeclarations]: Found specification of procedure enable_irq [2020-10-13 19:40:17,928 INFO L130 BoogieDeclarations]: Found specification of procedure usb_urb_dir_in [2020-10-13 19:40:17,928 INFO L130 BoogieDeclarations]: Found specification of procedure usb_urb_dir_out [2020-10-13 19:40:17,928 INFO L130 BoogieDeclarations]: Found specification of procedure usb_maxpacket [2020-10-13 19:40:17,928 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-13 19:40:17,928 INFO L130 BoogieDeclarations]: Found specification of procedure usb_hcd_link_urb_to_ep [2020-10-13 19:40:17,929 INFO L130 BoogieDeclarations]: Found specification of procedure usb_hcd_check_unlink_urb [2020-10-13 19:40:17,929 INFO L130 BoogieDeclarations]: Found specification of procedure usb_hcd_unlink_urb_from_ep [2020-10-13 19:40:17,929 INFO L130 BoogieDeclarations]: Found specification of procedure usb_hcd_giveback_urb [2020-10-13 19:40:17,929 INFO L130 BoogieDeclarations]: Found specification of procedure usb_create_hcd [2020-10-13 19:40:17,929 INFO L130 BoogieDeclarations]: Found specification of procedure usb_put_hcd [2020-10-13 19:40:17,929 INFO L130 BoogieDeclarations]: Found specification of procedure usb_add_hcd [2020-10-13 19:40:17,929 INFO L130 BoogieDeclarations]: Found specification of procedure usb_remove_hcd [2020-10-13 19:40:17,929 INFO L130 BoogieDeclarations]: Found specification of procedure usb_hcd_resume_root_hub [2020-10-13 19:40:17,930 INFO L130 BoogieDeclarations]: Found specification of procedure frame_diff [2020-10-13 19:40:17,930 INFO L130 BoogieDeclarations]: Found specification of procedure hcd_to_max3421 [2020-10-13 19:40:17,931 INFO L130 BoogieDeclarations]: Found specification of procedure max3421_to_hcd [2020-10-13 19:40:17,935 INFO L130 BoogieDeclarations]: Found specification of procedure spi_rd8 [2020-10-13 19:40:17,936 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-13 19:40:17,936 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-13 19:40:17,936 INFO L130 BoogieDeclarations]: Found specification of procedure spi_wr8 [2020-10-13 19:40:17,936 INFO L130 BoogieDeclarations]: Found specification of procedure spi_rd_buf [2020-10-13 19:40:17,936 INFO L130 BoogieDeclarations]: Found specification of procedure spi_wr_buf [2020-10-13 19:40:17,936 INFO L130 BoogieDeclarations]: Found specification of procedure max3421_set_speed [2020-10-13 19:40:17,937 INFO L130 BoogieDeclarations]: Found specification of procedure max3421_set_address [2020-10-13 19:40:17,937 INFO L130 BoogieDeclarations]: Found specification of procedure max3421_ctrl_setup [2020-10-13 19:40:17,937 INFO L130 BoogieDeclarations]: Found specification of procedure max3421_transfer_in [2020-10-13 19:40:17,937 INFO L130 BoogieDeclarations]: Found specification of procedure max3421_transfer_out [2020-10-13 19:40:17,937 INFO L130 BoogieDeclarations]: Found specification of procedure max3421_next_transfer [2020-10-13 19:40:17,937 INFO L130 BoogieDeclarations]: Found specification of procedure max3421_select_and_start_urb [2020-10-13 19:40:17,938 INFO L130 BoogieDeclarations]: Found specification of procedure max3421_check_unlink [2020-10-13 19:40:17,938 INFO L130 BoogieDeclarations]: Found specification of procedure max3421_slow_retransmit [2020-10-13 19:40:17,938 INFO L130 BoogieDeclarations]: Found specification of procedure max3421_recv_data_available [2020-10-13 19:40:17,939 INFO L130 BoogieDeclarations]: Found specification of procedure max3421_handle_error [2020-10-13 19:40:17,941 INFO L130 BoogieDeclarations]: Found specification of procedure max3421_transfer_in_done [2020-10-13 19:40:17,941 INFO L130 BoogieDeclarations]: Found specification of procedure max3421_transfer_out_done [2020-10-13 19:40:17,941 INFO L130 BoogieDeclarations]: Found specification of procedure max3421_host_transfer_done [2020-10-13 19:40:17,941 INFO L130 BoogieDeclarations]: Found specification of procedure max3421_detect_conn [2020-10-13 19:40:17,941 INFO L130 BoogieDeclarations]: Found specification of procedure max3421_irq_handler [2020-10-13 19:40:17,942 INFO L130 BoogieDeclarations]: Found specification of procedure max3421_handle_irqs [2020-10-13 19:40:17,942 INFO L130 BoogieDeclarations]: Found specification of procedure max3421_reset_hcd [2020-10-13 19:40:17,942 INFO L130 BoogieDeclarations]: Found specification of procedure max3421_urb_done [2020-10-13 19:40:17,942 INFO L130 BoogieDeclarations]: Found specification of procedure max3421_spi_thread [2020-10-13 19:40:17,942 INFO L130 BoogieDeclarations]: Found specification of procedure max3421_reset_port [2020-10-13 19:40:17,942 INFO L130 BoogieDeclarations]: Found specification of procedure max3421_reset [2020-10-13 19:40:17,942 INFO L130 BoogieDeclarations]: Found specification of procedure max3421_start [2020-10-13 19:40:17,943 INFO L130 BoogieDeclarations]: Found specification of procedure max3421_stop [2020-10-13 19:40:17,943 INFO L130 BoogieDeclarations]: Found specification of procedure max3421_urb_enqueue [2020-10-13 19:40:17,943 INFO L130 BoogieDeclarations]: Found specification of procedure max3421_urb_dequeue [2020-10-13 19:40:17,943 INFO L130 BoogieDeclarations]: Found specification of procedure max3421_endpoint_disable [2020-10-13 19:40:17,943 INFO L130 BoogieDeclarations]: Found specification of procedure max3421_get_frame_number [2020-10-13 19:40:17,943 INFO L130 BoogieDeclarations]: Found specification of procedure max3421_hub_status_data [2020-10-13 19:40:17,943 INFO L130 BoogieDeclarations]: Found specification of procedure hub_descriptor [2020-10-13 19:40:17,944 INFO L130 BoogieDeclarations]: Found specification of procedure max3421_gpout_set_value [2020-10-13 19:40:17,944 INFO L130 BoogieDeclarations]: Found specification of procedure max3421_hub_control [2020-10-13 19:40:17,944 INFO L130 BoogieDeclarations]: Found specification of procedure max3421_bus_suspend [2020-10-13 19:40:17,944 INFO L130 BoogieDeclarations]: Found specification of procedure max3421_bus_resume [2020-10-13 19:40:17,944 INFO L130 BoogieDeclarations]: Found specification of procedure max3421_map_urb_for_dma [2020-10-13 19:40:17,944 INFO L130 BoogieDeclarations]: Found specification of procedure max3421_unmap_urb_for_dma [2020-10-13 19:40:17,944 INFO L130 BoogieDeclarations]: Found specification of procedure max3421_probe [2020-10-13 19:40:17,944 INFO L130 BoogieDeclarations]: Found specification of procedure max3421_remove [2020-10-13 19:40:17,944 INFO L130 BoogieDeclarations]: Found specification of procedure max3421_driver_init [2020-10-13 19:40:17,945 INFO L130 BoogieDeclarations]: Found specification of procedure max3421_driver_exit [2020-10-13 19:40:17,945 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize [2020-10-13 19:40:17,945 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2020-10-13 19:40:17,945 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-13 19:40:17,945 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_some_page [2020-10-13 19:40:17,945 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags_and_return_some_page [2020-10-13 19:40:17,945 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_nonatomic [2020-10-13 19:40:17,945 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_trylock [2020-10-13 19:40:17,946 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_bool [2020-10-13 19:40:17,946 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-10-13 19:40:17,946 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-13 19:40:17,946 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2020-10-13 19:40:17,946 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-13 19:40:17,946 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-13 19:40:19,162 INFO L732 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2020-10-13 19:40:25,123 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-13 19:40:25,123 INFO L295 CfgBuilder]: Removed 0 assume(true) statements. [2020-10-13 19:40:25,134 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 07:40:25 BoogieIcfgContainer [2020-10-13 19:40:25,134 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-13 19:40:25,135 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-13 19:40:25,136 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-13 19:40:25,139 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-13 19:40:25,139 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 07:40:15" (1/3) ... [2020-10-13 19:40:25,140 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@10eba28c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 07:40:25, skipping insertion in model container [2020-10-13 19:40:25,141 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:40:17" (2/3) ... [2020-10-13 19:40:25,141 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@10eba28c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 07:40:25, skipping insertion in model container [2020-10-13 19:40:25,141 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 07:40:25" (3/3) ... [2020-10-13 19:40:25,143 INFO L109 eAbstractionObserver]: Analyzing ICFG 43_2a_bitvector_linux-3.16-rc1.tar.xz-43_2a-drivers--usb--host--max3421-hcd.ko-entry_point.cil.out.i [2020-10-13 19:40:25,154 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-13 19:40:25,164 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-13 19:40:25,180 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-13 19:40:25,209 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-10-13 19:40:25,210 INFO L376 AbstractCegarLoop]: Hoare is true [2020-10-13 19:40:25,210 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-13 19:40:25,210 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-13 19:40:25,210 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-13 19:40:25,210 INFO L380 AbstractCegarLoop]: Difference is false [2020-10-13 19:40:25,210 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-13 19:40:25,210 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-13 19:40:25,255 INFO L276 IsEmpty]: Start isEmpty. Operand 1382 states. [2020-10-13 19:40:25,275 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2020-10-13 19:40:25,275 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 19:40:25,277 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 19:40:25,278 INFO L427 AbstractCegarLoop]: === Iteration 1 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 19:40:25,284 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 19:40:25,285 INFO L82 PathProgramCache]: Analyzing trace with hash -1404989794, now seen corresponding path program 1 times [2020-10-13 19:40:25,294 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 19:40:25,294 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1705407227] [2020-10-13 19:40:25,294 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 19:40:25,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 19:40:26,104 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 19:40:26,507 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 19:40:26,745 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 19:40:31,004 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 19:40:31,004 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 105 [2020-10-13 19:40:31,004 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-13 19:40:31,005 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5127 [2020-10-13 19:40:31,008 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 19:40:31,008 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-13 19:40:31,009 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 79 [2020-10-13 19:40:31,009 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-10-13 19:40:31,009 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-10-13 19:40:33,691 WARN L193 SmtUtils]: Spent 2.46 s on a formula simplification that was a NOOP. DAG size: 631 [2020-10-13 19:40:33,694 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 19:40:33,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 19:40:33,728 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 19:40:34,269 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 19:40:34,269 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 19:40:34,270 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 19:40:34,270 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 552 [2020-10-13 19:40:34,270 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 19:40:34,271 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 19:40:34,271 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 19:40:34,271 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 19:40:34,272 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 19:40:34,399 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-13 19:40:34,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 19:40:34,407 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 19:40:34,411 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 19:40:34,412 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 19:40:34,412 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 19:40:34,412 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-13 19:40:34,412 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 19:40:34,413 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 19:40:34,413 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 19:40:34,413 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 19:40:34,413 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 19:40:34,421 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-13 19:40:34,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 19:40:34,429 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 19:40:34,434 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 19:40:34,434 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 19:40:34,434 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 19:40:34,435 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-13 19:40:34,435 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 19:40:34,435 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 19:40:34,435 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 19:40:34,436 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 19:40:34,436 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 19:40:34,444 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-13 19:40:34,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 19:40:34,452 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 19:40:34,457 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 19:40:34,457 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 19:40:34,458 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 19:40:34,458 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-13 19:40:34,458 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 19:40:34,458 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 19:40:34,458 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 19:40:34,459 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 19:40:34,459 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 19:40:34,467 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2020-10-13 19:40:34,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 19:40:34,474 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 19:40:34,477 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 19:40:34,477 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-13 19:40:34,477 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 19:40:34,478 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-13 19:40:34,478 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 19:40:34,478 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 19:40:34,478 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 19:40:34,479 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 19:40:34,479 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 19:40:34,486 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2020-10-13 19:40:34,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 19:40:34,494 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 19:40:34,500 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 19:40:34,501 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 19:40:34,501 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 19:40:34,501 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-13 19:40:34,501 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 19:40:34,502 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 19:40:34,502 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 19:40:34,502 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 19:40:34,502 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 19:40:34,511 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2020-10-13 19:40:34,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 19:40:34,518 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 19:40:34,521 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 19:40:34,521 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 19:40:34,522 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 19:40:34,522 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-13 19:40:34,522 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 19:40:34,522 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 19:40:34,522 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 19:40:34,523 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 19:40:34,523 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 19:40:34,547 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-10-13 19:40:34,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 19:40:34,553 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 19:40:34,557 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 19:40:34,558 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 19:40:34,558 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 19:40:34,558 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-13 19:40:34,558 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 19:40:34,559 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 19:40:34,559 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-13 19:40:34,559 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 19:40:34,559 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 19:40:34,603 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2020-10-13 19:40:34,604 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1705407227] [2020-10-13 19:40:34,606 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 19:40:34,607 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-13 19:40:34,608 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1637754524] [2020-10-13 19:40:34,613 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-13 19:40:34,614 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 19:40:34,629 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-13 19:40:34,629 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-10-13 19:40:34,632 INFO L87 Difference]: Start difference. First operand 1382 states. Second operand 6 states. [2020-10-13 19:40:37,159 WARN L193 SmtUtils]: Spent 2.49 s on a formula simplification that was a NOOP. DAG size: 634 [2020-10-13 19:40:55,765 WARN L193 SmtUtils]: Spent 2.44 s on a formula simplification that was a NOOP. DAG size: 635 [2020-10-13 19:41:05,207 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 19:41:05,207 INFO L93 Difference]: Finished difference Result 1917 states and 2769 transitions. [2020-10-13 19:41:05,215 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-13 19:41:05,217 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 77 [2020-10-13 19:41:05,217 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 19:41:05,272 INFO L225 Difference]: With dead ends: 1917 [2020-10-13 19:41:05,272 INFO L226 Difference]: Without dead ends: 1152 [2020-10-13 19:41:05,282 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 7.5s TimeCoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2020-10-13 19:41:05,305 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1152 states. [2020-10-13 19:41:05,595 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1152 to 685. [2020-10-13 19:41:05,596 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 685 states. [2020-10-13 19:41:05,602 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 685 states to 685 states and 888 transitions. [2020-10-13 19:41:05,604 INFO L78 Accepts]: Start accepts. Automaton has 685 states and 888 transitions. Word has length 77 [2020-10-13 19:41:05,605 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 19:41:05,605 INFO L479 AbstractCegarLoop]: Abstraction has 685 states and 888 transitions. [2020-10-13 19:41:05,606 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-13 19:41:05,606 INFO L276 IsEmpty]: Start isEmpty. Operand 685 states and 888 transitions. [2020-10-13 19:41:05,612 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2020-10-13 19:41:05,613 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 19:41:05,613 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 19:41:05,613 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-13 19:41:05,614 INFO L427 AbstractCegarLoop]: === Iteration 2 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 19:41:05,614 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 19:41:05,614 INFO L82 PathProgramCache]: Analyzing trace with hash 895832796, now seen corresponding path program 1 times [2020-10-13 19:41:05,614 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 19:41:05,615 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1099249794] [2020-10-13 19:41:05,615 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 19:41:05,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 19:41:05,824 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 19:41:06,051 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 19:41:08,172 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 19:41:08,173 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 105 [2020-10-13 19:41:08,173 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 19:41:08,173 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2449 [2020-10-13 19:41:08,173 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 19:41:08,174 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 19:41:08,174 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 41 [2020-10-13 19:41:08,174 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 19:41:08,175 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 19:41:10,902 WARN L193 SmtUtils]: Spent 2.58 s on a formula simplification that was a NOOP. DAG size: 631 [2020-10-13 19:41:10,904 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 19:41:10,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 19:41:10,940 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 19:41:11,098 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 19:41:11,098 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 19:41:11,098 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 19:41:11,098 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 168 [2020-10-13 19:41:11,099 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 19:41:11,099 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 19:41:11,099 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 19:41:11,099 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 19:41:11,099 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 19:41:11,170 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-13 19:41:11,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 19:41:11,178 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 19:41:11,183 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 19:41:11,183 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 19:41:11,183 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 19:41:11,183 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-13 19:41:11,184 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 19:41:11,184 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 19:41:11,184 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 19:41:11,184 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 19:41:11,184 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 19:41:11,192 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-13 19:41:11,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 19:41:11,200 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 19:41:11,205 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 19:41:11,206 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 19:41:11,206 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 19:41:11,206 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-13 19:41:11,206 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 19:41:11,206 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 19:41:11,207 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 19:41:11,207 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 19:41:11,207 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 19:41:11,214 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-13 19:41:11,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 19:41:11,221 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 19:41:11,226 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 19:41:11,226 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 19:41:11,226 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 19:41:11,227 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-13 19:41:11,227 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 19:41:11,227 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 19:41:11,227 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 19:41:11,227 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 19:41:11,228 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 19:41:11,234 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2020-10-13 19:41:11,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 19:41:11,241 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 19:41:11,243 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 19:41:11,244 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-13 19:41:11,244 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 19:41:11,244 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-13 19:41:11,244 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 19:41:11,245 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 19:41:11,245 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 19:41:11,245 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 19:41:11,245 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 19:41:11,251 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2020-10-13 19:41:11,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 19:41:11,258 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 19:41:11,264 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 19:41:11,265 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 19:41:11,265 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 19:41:11,265 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-13 19:41:11,265 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 19:41:11,265 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 19:41:11,265 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-13 19:41:11,266 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 19:41:11,266 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 19:41:11,272 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2020-10-13 19:41:11,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 19:41:11,279 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 19:41:11,283 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 19:41:11,283 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 19:41:11,283 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 19:41:11,284 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-13 19:41:11,284 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 19:41:11,284 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 19:41:11,284 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-13 19:41:11,284 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 19:41:11,284 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 19:41:11,304 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-10-13 19:41:11,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 19:41:11,309 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 19:41:11,313 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 19:41:11,313 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 19:41:11,314 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 19:41:11,314 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-13 19:41:11,314 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 19:41:11,314 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 19:41:11,314 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-13 19:41:11,315 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 19:41:11,315 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 19:41:11,341 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2020-10-13 19:41:11,342 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1099249794] [2020-10-13 19:41:11,342 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 19:41:11,342 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-13 19:41:11,343 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [575662078] [2020-10-13 19:41:11,344 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-13 19:41:11,345 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 19:41:11,345 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-13 19:41:11,345 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-10-13 19:41:11,345 INFO L87 Difference]: Start difference. First operand 685 states and 888 transitions. Second operand 6 states. [2020-10-13 19:41:13,724 WARN L193 SmtUtils]: Spent 2.36 s on a formula simplification that was a NOOP. DAG size: 634 [2020-10-13 19:41:19,030 WARN L193 SmtUtils]: Spent 2.32 s on a formula simplification that was a NOOP. DAG size: 636 [2020-10-13 19:41:21,631 WARN L193 SmtUtils]: Spent 2.44 s on a formula simplification that was a NOOP. DAG size: 633 [2020-10-13 19:41:44,376 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 19:41:44,377 INFO L93 Difference]: Finished difference Result 2349 states and 3293 transitions. [2020-10-13 19:41:44,378 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-13 19:41:44,378 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 77 [2020-10-13 19:41:44,378 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 19:41:44,398 INFO L225 Difference]: With dead ends: 2349 [2020-10-13 19:41:44,398 INFO L226 Difference]: Without dead ends: 1680 [2020-10-13 19:41:44,402 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 9.9s TimeCoverageRelationStatistics Valid=54, Invalid=102, Unknown=0, NotChecked=0, Total=156 [2020-10-13 19:41:44,405 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1680 states. [2020-10-13 19:41:44,727 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1680 to 1017. [2020-10-13 19:41:44,728 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1017 states. [2020-10-13 19:41:44,733 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1017 states to 1017 states and 1290 transitions. [2020-10-13 19:41:44,734 INFO L78 Accepts]: Start accepts. Automaton has 1017 states and 1290 transitions. Word has length 77 [2020-10-13 19:41:44,735 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 19:41:44,735 INFO L479 AbstractCegarLoop]: Abstraction has 1017 states and 1290 transitions. [2020-10-13 19:41:44,735 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-13 19:41:44,735 INFO L276 IsEmpty]: Start isEmpty. Operand 1017 states and 1290 transitions. [2020-10-13 19:41:44,737 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2020-10-13 19:41:44,737 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 19:41:44,737 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 19:41:44,737 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-13 19:41:44,738 INFO L427 AbstractCegarLoop]: === Iteration 3 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 19:41:44,738 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 19:41:44,738 INFO L82 PathProgramCache]: Analyzing trace with hash -1181856091, now seen corresponding path program 1 times [2020-10-13 19:41:44,738 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 19:41:44,739 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [560684342] [2020-10-13 19:41:44,739 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 19:41:44,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 19:41:44,931 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 19:41:45,076 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 19:41:47,659 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 19:41:50,011 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 19:41:50,011 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 118 [2020-10-13 19:41:50,012 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-13 19:41:50,012 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5168 [2020-10-13 19:41:50,012 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 19:41:50,013 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 19:41:50,013 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 41 [2020-10-13 19:41:50,013 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-13 19:41:50,013 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 19:41:52,528 WARN L193 SmtUtils]: Spent 2.35 s on a formula simplification that was a NOOP. DAG size: 631 [2020-10-13 19:41:52,530 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 19:41:52,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 19:41:52,574 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 19:41:52,802 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 19:41:52,802 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 19:41:52,803 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 19:41:52,803 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 242 [2020-10-13 19:41:52,803 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 19:41:52,804 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 19:41:52,804 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 19:41:52,804 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 19:41:52,805 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 19:41:52,908 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-13 19:41:52,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 19:41:52,918 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 19:41:52,923 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 19:41:52,923 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 19:41:52,924 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 19:41:52,924 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-13 19:41:52,924 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 19:41:52,925 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 19:41:52,925 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 19:41:52,926 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 19:41:52,926 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 19:41:52,935 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-13 19:41:52,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 19:41:52,943 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 19:41:52,953 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 19:41:52,953 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 19:41:52,954 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 19:41:52,954 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-13 19:41:52,954 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 19:41:52,955 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 19:41:52,955 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 19:41:52,955 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 19:41:52,956 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 19:41:52,965 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-13 19:41:52,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 19:41:52,973 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 19:41:52,988 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 19:41:52,988 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 19:41:52,988 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 19:41:52,989 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-10-13 19:41:52,989 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 19:41:52,989 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 19:41:52,990 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 19:41:52,990 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 19:41:52,990 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 19:41:52,999 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2020-10-13 19:41:53,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 19:41:53,006 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 19:41:53,010 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 19:41:53,011 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-13 19:41:53,012 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 19:41:53,012 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-13 19:41:53,012 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 19:41:53,013 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 19:41:53,013 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 19:41:53,013 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 19:41:53,014 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 19:41:53,022 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-10-13 19:41:53,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 19:41:53,030 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 19:41:53,035 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 19:41:53,035 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 19:41:53,036 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 19:41:53,036 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-13 19:41:53,036 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 19:41:53,036 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 19:41:53,036 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-13 19:41:53,037 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 19:41:53,037 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 19:41:53,047 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2020-10-13 19:41:53,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 19:41:53,057 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 19:41:53,072 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 19:41:53,072 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 19:41:53,073 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 19:41:53,073 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-10-13 19:41:53,073 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 19:41:53,074 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 19:41:53,074 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-13 19:41:53,074 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 19:41:53,075 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 19:41:53,115 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2020-10-13 19:41:53,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 19:41:53,129 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 19:41:53,143 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 19:41:53,144 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-13 19:41:53,144 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 19:41:53,144 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-10-13 19:41:53,145 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 19:41:53,146 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 19:41:53,146 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 13 [2020-10-13 19:41:53,146 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 19:41:53,147 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-13 19:41:53,157 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 19:41:53,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 19:41:53,165 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 19:41:53,169 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 19:41:53,170 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 19:41:53,170 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 19:41:53,171 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-13 19:41:53,171 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 19:41:53,171 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 19:41:53,171 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 19:41:53,172 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 19:41:53,172 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 19:41:53,181 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2020-10-13 19:41:53,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 19:41:53,189 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 19:41:53,194 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 19:41:53,194 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 19:41:53,195 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 19:41:53,195 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-13 19:41:53,195 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 19:41:53,196 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 19:41:53,196 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-13 19:41:53,196 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 19:41:53,197 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 19:41:53,205 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2020-10-13 19:41:53,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 19:41:53,213 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 19:41:53,218 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 19:41:53,219 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 19:41:53,219 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 19:41:53,219 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-13 19:41:53,219 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 19:41:53,220 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 19:41:53,220 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-13 19:41:53,220 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 19:41:53,220 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 19:41:53,262 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-10-13 19:41:53,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 19:41:53,273 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 19:41:53,281 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 19:41:53,281 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 19:41:53,282 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 19:41:53,282 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-13 19:41:53,282 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 19:41:53,283 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 19:41:53,283 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-13 19:41:53,283 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 19:41:53,284 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 19:41:53,344 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2020-10-13 19:41:53,345 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [560684342] [2020-10-13 19:41:53,346 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 19:41:53,346 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-13 19:41:53,348 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [78868557] [2020-10-13 19:41:53,349 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-13 19:41:53,349 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 19:41:53,349 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-13 19:41:53,350 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2020-10-13 19:41:53,350 INFO L87 Difference]: Start difference. First operand 1017 states and 1290 transitions. Second operand 7 states. [2020-10-13 19:41:56,231 WARN L193 SmtUtils]: Spent 2.85 s on a formula simplification that was a NOOP. DAG size: 640 [2020-10-13 19:42:04,057 WARN L193 SmtUtils]: Spent 2.48 s on a formula simplification that was a NOOP. DAG size: 642 [2020-10-13 19:42:06,639 WARN L193 SmtUtils]: Spent 2.45 s on a formula simplification that was a NOOP. DAG size: 633 [2020-10-13 19:42:42,141 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 19:42:42,141 INFO L93 Difference]: Finished difference Result 3758 states and 5332 transitions. [2020-10-13 19:42:42,142 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-13 19:42:42,142 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 82 [2020-10-13 19:42:42,143 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 19:42:42,160 INFO L225 Difference]: With dead ends: 3758 [2020-10-13 19:42:42,160 INFO L226 Difference]: Without dead ends: 2757 [2020-10-13 19:42:42,165 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 10.4s TimeCoverageRelationStatistics Valid=61, Invalid=121, Unknown=0, NotChecked=0, Total=182 [2020-10-13 19:42:42,169 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2757 states. [2020-10-13 19:42:42,629 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2757 to 1574. [2020-10-13 19:42:42,629 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1574 states. [2020-10-13 19:42:42,636 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1574 states to 1574 states and 2020 transitions. [2020-10-13 19:42:42,637 INFO L78 Accepts]: Start accepts. Automaton has 1574 states and 2020 transitions. Word has length 82 [2020-10-13 19:42:42,638 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 19:42:42,638 INFO L479 AbstractCegarLoop]: Abstraction has 1574 states and 2020 transitions. [2020-10-13 19:42:42,638 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-13 19:42:42,638 INFO L276 IsEmpty]: Start isEmpty. Operand 1574 states and 2020 transitions. [2020-10-13 19:42:42,644 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2020-10-13 19:42:42,644 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 19:42:42,645 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 19:42:42,645 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-13 19:42:42,645 INFO L427 AbstractCegarLoop]: === Iteration 4 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 19:42:42,646 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 19:42:42,646 INFO L82 PathProgramCache]: Analyzing trace with hash 1966260411, now seen corresponding path program 1 times [2020-10-13 19:42:42,646 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 19:42:42,646 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [115376988] [2020-10-13 19:42:42,647 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 19:42:42,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 19:42:42,874 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 19:42:43,044 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 19:42:45,696 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 19:42:45,696 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 166 [2020-10-13 19:42:45,697 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 19:42:45,697 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2928 [2020-10-13 19:42:45,697 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 19:42:45,697 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 19:42:45,698 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 78 [2020-10-13 19:42:45,698 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 41 [2020-10-13 19:42:45,698 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 19:42:48,271 WARN L193 SmtUtils]: Spent 2.40 s on a formula simplification that was a NOOP. DAG size: 631 [2020-10-13 19:42:48,274 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 19:42:48,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 19:42:48,301 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 19:42:48,492 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 19:42:48,493 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 19:42:48,493 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 19:42:48,493 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 201 [2020-10-13 19:42:48,493 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 19:42:48,493 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 19:42:48,494 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 19:42:48,494 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 19:42:48,494 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 19:42:48,565 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-13 19:42:48,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 19:42:48,572 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 19:42:48,575 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 19:42:48,575 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 19:42:48,575 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 19:42:48,576 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-13 19:42:48,576 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 19:42:48,576 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 19:42:48,576 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 19:42:48,576 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 19:42:48,577 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 19:42:48,585 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-13 19:42:48,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 19:42:48,591 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 19:42:48,597 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 19:42:48,597 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 19:42:48,597 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 19:42:48,597 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-13 19:42:48,598 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 19:42:48,598 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 19:42:48,598 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 19:42:48,598 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 19:42:48,598 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 19:42:48,604 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-13 19:42:48,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 19:42:48,611 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 19:42:48,615 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 19:42:48,615 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 19:42:48,615 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 19:42:48,616 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-13 19:42:48,616 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 19:42:48,616 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 19:42:48,616 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 19:42:48,616 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 19:42:48,617 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 19:42:48,624 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2020-10-13 19:42:48,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 19:42:48,631 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 19:42:48,635 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 19:42:48,636 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-13 19:42:48,636 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 19:42:48,637 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-13 19:42:48,637 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 19:42:48,637 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 19:42:48,638 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 19:42:48,638 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 19:42:48,638 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 19:42:48,644 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2020-10-13 19:42:48,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 19:42:48,652 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 19:42:48,658 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 19:42:48,658 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-13 19:42:48,659 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 19:42:48,659 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-13 19:42:48,659 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 19:42:48,660 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 19:42:48,660 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 19:42:48,660 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 19:42:48,661 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 19:42:48,668 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 19:42:48,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 19:42:48,674 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 19:42:48,677 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 19:42:48,678 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 19:42:48,678 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 19:42:48,678 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-13 19:42:48,679 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 19:42:48,679 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 19:42:48,679 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 19:42:48,680 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 19:42:48,680 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 19:42:48,734 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-10-13 19:42:48,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 19:42:48,742 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 19:42:48,750 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 19:42:48,750 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-13 19:42:48,750 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 19:42:48,751 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-13 19:42:48,751 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 19:42:48,751 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 19:42:48,751 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 19:42:48,752 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 19:42:48,752 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 19:42:48,759 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 19:42:48,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 19:42:48,767 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 19:42:48,771 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 19:42:48,772 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 19:42:48,772 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 19:42:48,773 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-13 19:42:48,773 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 19:42:48,773 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 19:42:48,774 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 19:42:48,774 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 19:42:48,774 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 19:42:48,843 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2020-10-13 19:42:48,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 19:42:48,876 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 19:42:48,902 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 19:42:48,903 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 24 [2020-10-13 19:42:48,903 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 19:42:48,903 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 52 [2020-10-13 19:42:48,904 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 19:42:48,904 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 19:42:48,905 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 19:42:48,905 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-10-13 19:42:48,905 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 19:42:48,917 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 19:42:48,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 19:42:48,925 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 19:42:48,929 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 19:42:48,929 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 19:42:48,930 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 19:42:48,930 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-13 19:42:48,930 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 19:42:48,931 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 19:42:48,931 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 19:42:48,931 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 19:42:48,932 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 19:42:48,940 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-10-13 19:42:48,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 19:42:48,948 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 19:42:48,952 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 19:42:48,953 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 19:42:48,953 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 19:42:48,953 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-13 19:42:48,954 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 19:42:48,954 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 19:42:48,954 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 19:42:48,954 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 19:42:48,954 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 19:42:48,962 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-10-13 19:42:48,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 19:42:48,973 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 19:42:48,979 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 19:42:48,979 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 19:42:48,980 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 19:42:48,980 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-13 19:42:48,980 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 19:42:48,981 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 19:42:48,981 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-13 19:42:48,981 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 19:42:48,982 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 19:42:48,990 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2020-10-13 19:42:48,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 19:42:48,998 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 19:42:49,005 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 19:42:49,005 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 19:42:49,005 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 19:42:49,006 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-13 19:42:49,006 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 19:42:49,006 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 19:42:49,007 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-13 19:42:49,007 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 19:42:49,007 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 19:42:49,034 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2020-10-13 19:42:49,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 19:42:49,041 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 19:42:49,044 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 19:42:49,044 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 19:42:49,045 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 19:42:49,045 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-13 19:42:49,045 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 19:42:49,046 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 19:42:49,046 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-13 19:42:49,046 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 19:42:49,047 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 19:42:49,125 INFO L134 CoverageAnalysis]: Checked inductivity of 63 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2020-10-13 19:42:49,126 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [115376988] [2020-10-13 19:42:49,133 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 19:42:49,133 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-10-13 19:42:49,134 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [530174309] [2020-10-13 19:42:49,136 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-13 19:42:49,137 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 19:42:49,137 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-13 19:42:49,137 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2020-10-13 19:42:49,138 INFO L87 Difference]: Start difference. First operand 1574 states and 2020 transitions. Second operand 8 states. [2020-10-13 19:42:51,747 WARN L193 SmtUtils]: Spent 2.58 s on a formula simplification that was a NOOP. DAG size: 634 [2020-10-13 19:43:00,310 WARN L193 SmtUtils]: Spent 2.49 s on a formula simplification that was a NOOP. DAG size: 636 [2020-10-13 19:43:03,179 WARN L193 SmtUtils]: Spent 2.39 s on a formula simplification that was a NOOP. DAG size: 633 [2020-10-13 19:43:34,896 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 19:43:34,897 INFO L93 Difference]: Finished difference Result 5255 states and 7235 transitions. [2020-10-13 19:43:34,898 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2020-10-13 19:43:34,898 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 124 [2020-10-13 19:43:34,899 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 19:43:34,920 INFO L225 Difference]: With dead ends: 5255 [2020-10-13 19:43:34,920 INFO L226 Difference]: Without dead ends: 3722 [2020-10-13 19:43:34,926 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 81 ImplicationChecksByTransitivity, 10.4s TimeCoverageRelationStatistics Valid=128, Invalid=292, Unknown=0, NotChecked=0, Total=420 [2020-10-13 19:43:34,931 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3722 states. [2020-10-13 19:43:35,692 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3722 to 2534. [2020-10-13 19:43:35,693 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2534 states. [2020-10-13 19:43:35,703 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2534 states to 2534 states and 3228 transitions. [2020-10-13 19:43:35,704 INFO L78 Accepts]: Start accepts. Automaton has 2534 states and 3228 transitions. Word has length 124 [2020-10-13 19:43:35,707 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 19:43:35,707 INFO L479 AbstractCegarLoop]: Abstraction has 2534 states and 3228 transitions. [2020-10-13 19:43:35,707 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-13 19:43:35,707 INFO L276 IsEmpty]: Start isEmpty. Operand 2534 states and 3228 transitions. [2020-10-13 19:43:35,719 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2020-10-13 19:43:35,719 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 19:43:35,720 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 19:43:35,720 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-13 19:43:35,720 INFO L427 AbstractCegarLoop]: === Iteration 5 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 19:43:35,720 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 19:43:35,721 INFO L82 PathProgramCache]: Analyzing trace with hash 915748375, now seen corresponding path program 1 times [2020-10-13 19:43:35,721 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 19:43:35,721 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [649053083] [2020-10-13 19:43:35,721 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 19:43:36,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-13 19:43:36,025 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-10-13 19:43:36,025 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-10-13 19:43:36,029 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-13 19:43:36,067 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.10 07:43:36 BoogieIcfgContainer [2020-10-13 19:43:36,067 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-13 19:43:36,069 INFO L168 Benchmark]: Toolchain (without parser) took 200755.42 ms. Allocated memory was 147.8 MB in the beginning and 1.8 GB in the end (delta: 1.7 GB). Free memory was 95.9 MB in the beginning and 679.4 MB in the end (delta: -583.4 MB). Peak memory consumption was 1.1 GB. Max. memory is 7.1 GB. [2020-10-13 19:43:36,070 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 147.8 MB. Free memory was 122.4 MB in the beginning and 122.2 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. [2020-10-13 19:43:36,071 INFO L168 Benchmark]: CACSL2BoogieTranslator took 2186.28 ms. Allocated memory was 147.8 MB in the beginning and 268.4 MB in the end (delta: 120.6 MB). Free memory was 95.5 MB in the beginning and 217.4 MB in the end (delta: -121.9 MB). Peak memory consumption was 118.3 MB. Max. memory is 7.1 GB. [2020-10-13 19:43:36,071 INFO L168 Benchmark]: Boogie Preprocessor took 273.28 ms. Allocated memory is still 268.4 MB. Free memory was 217.4 MB in the beginning and 197.6 MB in the end (delta: 19.8 MB). Peak memory consumption was 19.8 MB. Max. memory is 7.1 GB. [2020-10-13 19:43:36,072 INFO L168 Benchmark]: RCFGBuilder took 7358.94 ms. Allocated memory was 268.4 MB in the beginning and 400.6 MB in the end (delta: 132.1 MB). Free memory was 197.6 MB in the beginning and 213.3 MB in the end (delta: -15.7 MB). Peak memory consumption was 276.4 MB. Max. memory is 7.1 GB. [2020-10-13 19:43:36,073 INFO L168 Benchmark]: TraceAbstraction took 190932.07 ms. Allocated memory was 400.6 MB in the beginning and 1.8 GB in the end (delta: 1.4 GB). Free memory was 213.3 MB in the beginning and 679.4 MB in the end (delta: -466.0 MB). Peak memory consumption was 941.2 MB. Max. memory is 7.1 GB. [2020-10-13 19:43:36,076 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 147.8 MB. Free memory was 122.4 MB in the beginning and 122.2 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 2186.28 ms. Allocated memory was 147.8 MB in the beginning and 268.4 MB in the end (delta: 120.6 MB). Free memory was 95.5 MB in the beginning and 217.4 MB in the end (delta: -121.9 MB). Peak memory consumption was 118.3 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 273.28 ms. Allocated memory is still 268.4 MB. Free memory was 217.4 MB in the beginning and 197.6 MB in the end (delta: 19.8 MB). Peak memory consumption was 19.8 MB. Max. memory is 7.1 GB. * RCFGBuilder took 7358.94 ms. Allocated memory was 268.4 MB in the beginning and 400.6 MB in the end (delta: 132.1 MB). Free memory was 197.6 MB in the beginning and 213.3 MB in the end (delta: -15.7 MB). Peak memory consumption was 276.4 MB. Max. memory is 7.1 GB. * TraceAbstraction took 190932.07 ms. Allocated memory was 400.6 MB in the beginning and 1.8 GB in the end (delta: 1.4 GB). Free memory was 213.3 MB in the beginning and 679.4 MB in the end (delta: -466.0 MB). Peak memory consumption was 941.2 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 3976]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of large string literal at line 5872, overapproximation of bitwiseAnd at line 6538. Possible FailurePath: [L3999] int ldv_irq_1_2 = 0; [L4000] int LDV_IN_INTERRUPT = 1; [L4001] int ldv_irq_1_3 = 0; [L4002] void *ldv_irq_data_1_1 ; [L4003] int ldv_irq_1_1 = 0; [L4004] int ldv_irq_1_0 = 0; [L4005] struct urb *max3421_hcd_desc_group0 ; [L4006] int ldv_irq_line_1_3 ; [L4007] void *ldv_irq_data_1_0 ; [L4008] int ldv_state_variable_0 ; [L4009] struct usb_hcd *max3421_hcd_desc_group1 ; [L4010] int ldv_state_variable_3 ; [L4011] int ldv_irq_line_1_0 ; [L4012] int ldv_state_variable_2 ; [L4013] void *ldv_irq_data_1_3 ; [L4014] struct spi_device *max3421_driver_group0 ; [L4015] int ref_cnt ; [L4016] int ldv_irq_line_1_1 ; [L4017] void *ldv_irq_data_1_2 ; [L4018] int ldv_state_variable_1 ; [L4019] int ldv_irq_line_1_2 ; [L4197] static struct max3421_hcd *max3421_hcd_list ; [L4198-L4202] static int const hrsl_to_error[16U] = { 0, -22, -22, -22, -11, -32, -84, -71, -121, -71, -71, -84, -5, -5, -62, -75}; [L5871-L5877] static struct hc_driver max3421_hcd_desc = {"max3421", "MAX3421 USB Host-Controller Driver", 192UL, 0, 16, & max3421_reset, & max3421_start, 0, 0, & max3421_stop, 0, & max3421_get_frame_number, & max3421_urb_enqueue, & max3421_urb_dequeue, & max3421_map_urb_for_dma, & max3421_unmap_urb_for_dma, & max3421_endpoint_disable, 0, & max3421_hub_status_data, & max3421_hub_control, & max3421_bus_suspend, & max3421_bus_resume, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0}; [L6016-L6018] static struct spi_driver max3421_driver = {0, & max3421_probe, & max3421_remove, 0, 0, 0, {"max3421-hcd", 0, & __this_module, 0, (_Bool)0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0}}; [L6034] int ldv_retval_0 ; [L6035] int ldv_retval_1 ; [L6038] int ldv_retval_2 ; [L6534] int ldv_spin = 0; [L6183] char *ldvarg7 ; [L6184] void *tmp ; [L6185] u16 ldvarg3 ; [L6186] u16 tmp___0 ; [L6187] u16 ldvarg0 ; [L6188] u16 tmp___1 ; [L6189] gfp_t ldvarg5 ; [L6190] gfp_t ldvarg6 ; [L6191] struct usb_host_endpoint *ldvarg8 ; [L6192] void *tmp___2 ; [L6193] u16 ldvarg1 ; [L6194] u16 tmp___3 ; [L6195] char *ldvarg4 ; [L6196] void *tmp___4 ; [L6197] int ldvarg9 ; [L6198] int tmp___5 ; [L6199] u16 ldvarg2 ; [L6200] u16 tmp___6 ; [L6201] int tmp___7 ; [L6202] int tmp___8 ; [L6203] int tmp___9 ; [L6204] int tmp___10 ; [L6206] CALL, EXPR ldv_zalloc(1UL) [L3940] void *p ; [L3941] void *tmp ; [L3942] int tmp___0 ; [L3944] tmp___0 = __VERIFIER_nondet_int() [L3945] COND TRUE tmp___0 != 0 [L3946] return ((void *)0); [L6206] RET, EXPR ldv_zalloc(1UL) [L6206] tmp = ldv_zalloc(1UL) [L6207] ldvarg7 = (char *)tmp [L6208] tmp___0 = __VERIFIER_nondet_u16() [L6209] ldvarg3 = tmp___0 [L6210] tmp___1 = __VERIFIER_nondet_u16() [L6211] ldvarg0 = tmp___1 [L6212] CALL, EXPR ldv_zalloc(72UL) [L3940] void *p ; [L3941] void *tmp ; [L3942] int tmp___0 ; [L3944] tmp___0 = __VERIFIER_nondet_int() [L3945] COND TRUE tmp___0 != 0 [L3946] return ((void *)0); [L6212] RET, EXPR ldv_zalloc(72UL) [L6212] tmp___2 = ldv_zalloc(72UL) [L6213] ldvarg8 = (struct usb_host_endpoint *)tmp___2 [L6214] tmp___3 = __VERIFIER_nondet_u16() [L6215] ldvarg1 = tmp___3 [L6216] CALL, EXPR ldv_zalloc(1UL) [L3940] void *p ; [L3941] void *tmp ; [L3942] int tmp___0 ; [L3944] tmp___0 = __VERIFIER_nondet_int() [L3945] COND TRUE tmp___0 != 0 [L3946] return ((void *)0); [L6216] RET, EXPR ldv_zalloc(1UL) [L6216] tmp___4 = ldv_zalloc(1UL) [L6217] ldvarg4 = (char *)tmp___4 [L6218] tmp___5 = __VERIFIER_nondet_int() [L6219] ldvarg9 = tmp___5 [L6220] tmp___6 = __VERIFIER_nondet_u16() [L6221] ldvarg2 = tmp___6 [L6222] FCALL ldv_initialize() [L6223] ldvarg5 = (gfp_t)__VERIFIER_nondet_int() [L6224] ldvarg6 = (gfp_t)__VERIFIER_nondet_int() [L6225] ldv_state_variable_1 = 1 [L6226] ref_cnt = 0 [L6227] ldv_state_variable_0 = 1 [L6228] ldv_state_variable_3 = 0 [L6229] ldv_state_variable_2 = 0 [L6231] tmp___7 = __VERIFIER_nondet_int() [L6233] case 0: [L6239] case 1: [L6240] COND TRUE ldv_state_variable_0 != 0 [L6241] tmp___8 = __VERIFIER_nondet_int() [L6243] case 0: [L6251] case 1: [L6252] COND TRUE ldv_state_variable_0 == 1 [L6253] CALL, EXPR max3421_driver_init() [L6021] int tmp ; [L6023] CALL, EXPR spi_register_driver(& max3421_driver) [L6680] return __VERIFIER_nondet_int(); [L6023] RET, EXPR spi_register_driver(& max3421_driver) [L6023] tmp = spi_register_driver(& max3421_driver) [L6024] return (tmp); [L6253] RET, EXPR max3421_driver_init() [L6253] ldv_retval_0 = max3421_driver_init() [L6254] COND TRUE ldv_retval_0 == 0 [L6255] ldv_state_variable_0 = 3 [L6256] ldv_state_variable_2 = 1 [L6257] CALL ldv_initialize_spi_driver_2() [L6148] void *tmp ; [L6150] CALL, EXPR ldv_zalloc(1496UL) [L3940] void *p ; [L3941] void *tmp ; [L3942] int tmp___0 ; [L3944] tmp___0 = __VERIFIER_nondet_int() [L3945] COND TRUE tmp___0 != 0 [L3946] return ((void *)0); [L6150] RET, EXPR ldv_zalloc(1496UL) [L6150] tmp = ldv_zalloc(1496UL) [L6151] max3421_driver_group0 = (struct spi_device *)tmp [L6257] RET ldv_initialize_spi_driver_2() [L6258] ldv_state_variable_3 = 1 [L6259] CALL ldv_initialize_hc_driver_3() [L6111] void *tmp ; [L6112] void *tmp___0 ; [L6114] CALL, EXPR ldv_zalloc(192UL) [L3940] void *p ; [L3941] void *tmp ; [L3942] int tmp___0 ; [L3944] tmp___0 = __VERIFIER_nondet_int() [L3945] COND TRUE tmp___0 != 0 [L3946] return ((void *)0); [L6114] RET, EXPR ldv_zalloc(192UL) [L6114] tmp = ldv_zalloc(192UL) [L6115] max3421_hcd_desc_group0 = (struct urb *)tmp [L6116] CALL, EXPR ldv_zalloc(968UL) [L3940] void *p ; [L3941] void *tmp ; [L3942] int tmp___0 ; [L3944] tmp___0 = __VERIFIER_nondet_int() [L3945] COND TRUE tmp___0 != 0 [L3946] return ((void *)0); [L6116] RET, EXPR ldv_zalloc(968UL) [L6116] tmp___0 = ldv_zalloc(968UL) [L6117] max3421_hcd_desc_group1 = (struct usb_hcd *)tmp___0 [L6259] RET ldv_initialize_hc_driver_3() [L6262] COND FALSE !(ldv_retval_0 != 0) [L6231] tmp___7 = __VERIFIER_nondet_int() [L6233] case 0: [L6239] case 1: [L6277] case 2: [L6278] COND TRUE ldv_state_variable_3 != 0 [L6279] tmp___9 = __VERIFIER_nondet_int() [L6281] case 0: [L6292] case 1: [L6304] case 2: [L6316] case 3: [L6328] case 4: [L6340] case 5: [L6352] case 6: [L6364] case 7: [L6376] case 8: [L6384] case 9: [L6396] case 10: [L6397] COND TRUE ldv_state_variable_3 == 1 [L6398] CALL max3421_urb_enqueue(max3421_hcd_desc_group1, max3421_hcd_desc_group0, ldvarg5) [L5524] struct spi_device *spi ; [L5525] struct spi_device *tmp ; [L5526] struct max3421_hcd *max3421_hcd ; [L5527] struct max3421_hcd *tmp___0 ; [L5528] struct max3421_ep *max3421_ep ; [L5529] unsigned long flags ; [L5530] int retval ; [L5531] void *tmp___1 ; [L5533] EXPR hcd->self.controller [L5533] CALL, EXPR to_spi_device(hcd->self.controller) [L4051] struct device const *__mptr ; [L4052] struct spi_device *tmp ; [L4054] COND TRUE (unsigned long )dev != (unsigned long )((struct device *)0) [L4055] __mptr = (struct device const *)dev [L4056] tmp = (struct spi_device *)__mptr [L4060] return (tmp); [L5533] RET, EXPR to_spi_device(hcd->self.controller) [L5533] tmp = to_spi_device(hcd->self.controller) [L5534] spi = tmp [L5535] CALL, EXPR hcd_to_max3421(hcd) [L4212] return ((struct max3421_hcd *)(& hcd->hcd_priv)); [L5535] RET, EXPR hcd_to_max3421(hcd) [L5535] tmp___0 = hcd_to_max3421(hcd) [L5536] max3421_hcd = tmp___0 [L5537] urb->pipe [L5538] case 1U: [L5539] case 0U: [L5546] default: [L5550] CALL ldv_spin_lock() [L6571] ldv_spin = 1 [L5550] RET ldv_spin_lock() [L5551] EXPR urb->ep [L5551] EXPR (urb->ep)->hcpriv [L5551] max3421_ep = (struct max3421_ep *)(urb->ep)->hcpriv [L5552] COND TRUE (unsigned long )max3421_ep == (unsigned long )((struct max3421_ep *)0) [L5553] CALL kzalloc(40UL, mem_flags) [L6502] CALL ldv_check_alloc_flags(flags) [L6538] COND FALSE !(ldv_spin == 0 || ! (flags & 16U)) [L6540] CALL ldv_error() [L3976] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 145 procedures, 1419 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 190.8s, OverallIterations: 5, TraceHistogramMax: 6, AutomataDifference: 158.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 3790 SDtfs, 9679 SDslu, 5628 SDs, 0 SdLazy, 10014 SolverSat, 6208 SolverUnsat, 5 SolverUnknown, 0 SolverNotchecked, 117.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 149 GetRequests, 99 SyntacticMatches, 0 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 125 ImplicationChecksByTransitivity, 38.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=2534occurred in iteration=4, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 1.8s AutomataMinimizationTime, 4 MinimizatonAttempts, 3501 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.9s SatisfiabilityAnalysisTime, 29.0s InterpolantComputationTime, 483 NumberOfCodeBlocks, 483 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 356 ConstructedInterpolants, 0 QuantifiedInterpolants, 283540 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 PerfectInterpolantSequences, 99/99 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request...