/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 SingleStatement --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=HIGHLEXORDER --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-64bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--media--usb--b2c2--b2c2-flexcop-usb.ko-main.cil.out.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-24 23:25:16,806 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-24 23:25:16,810 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-24 23:25:16,847 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-24 23:25:16,847 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-24 23:25:16,856 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-24 23:25:16,858 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-24 23:25:16,862 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-24 23:25:16,864 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-24 23:25:16,866 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-24 23:25:16,869 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-24 23:25:16,872 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-24 23:25:16,872 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-24 23:25:16,875 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-24 23:25:16,879 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-24 23:25:16,881 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-24 23:25:16,883 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-24 23:25:16,885 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-24 23:25:16,887 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-24 23:25:16,894 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-24 23:25:16,898 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-24 23:25:16,899 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-24 23:25:16,901 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-24 23:25:16,902 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-24 23:25:16,914 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-24 23:25:16,914 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-24 23:25:16,914 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-24 23:25:16,915 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-24 23:25:16,920 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-24 23:25:16,921 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-24 23:25:16,921 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-24 23:25:16,922 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-24 23:25:16,923 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-24 23:25:16,924 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-24 23:25:16,926 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-24 23:25:16,926 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-24 23:25:16,927 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-24 23:25:16,927 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-24 23:25:16,927 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-24 23:25:16,928 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-24 23:25:16,930 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-24 23:25:16,931 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 [2020-09-24 23:25:16,975 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-24 23:25:16,975 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-24 23:25:16,978 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-24 23:25:16,979 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-24 23:25:16,979 INFO L138 SettingsManager]: * Use SBE=true [2020-09-24 23:25:16,979 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-24 23:25:16,980 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-24 23:25:16,980 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-24 23:25:16,981 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-24 23:25:16,981 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-24 23:25:16,982 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-24 23:25:16,982 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-24 23:25:16,982 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-24 23:25:16,983 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-24 23:25:16,983 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-24 23:25:16,984 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-24 23:25:16,984 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-24 23:25:16,984 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-24 23:25:16,984 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-24 23:25:16,986 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-24 23:25:16,987 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-24 23:25:16,987 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-24 23:25:16,987 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-24 23:25:16,987 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-24 23:25:16,988 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-24 23:25:16,989 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-24 23:25:16,989 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-09-24 23:25:16,989 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 -> SingleStatement 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=HIGHLEXORDER;log-additional-information=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=HIGHLEXORDER;log-additional-information=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=HIGHLEXORDER;log-additional-information=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=HIGHLEXORDER;log-additional-information=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=HIGHLEXORDER;log-additional-information=true; [2020-09-24 23:25:17,468 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-24 23:25:17,484 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-24 23:25:17,490 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-24 23:25:17,492 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-24 23:25:17,493 INFO L275 PluginConnector]: CDTParser initialized [2020-09-24 23:25:17,494 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--media--usb--b2c2--b2c2-flexcop-usb.ko-main.cil.out.i [2020-09-24 23:25:17,595 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/df4758e64/59d1de46034e4c6b9ec292336de7ffa5/FLAGf2f65e76e [2020-09-24 23:25:18,537 INFO L306 CDTParser]: Found 1 translation units. [2020-09-24 23:25:18,538 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--media--usb--b2c2--b2c2-flexcop-usb.ko-main.cil.out.i [2020-09-24 23:25:18,583 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/df4758e64/59d1de46034e4c6b9ec292336de7ffa5/FLAGf2f65e76e [2020-09-24 23:25:18,965 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/df4758e64/59d1de46034e4c6b9ec292336de7ffa5 [2020-09-24 23:25:18,979 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-24 23:25:18,984 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-24 23:25:18,985 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-24 23:25:18,985 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-24 23:25:18,991 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-24 23:25:18,992 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 11:25:18" (1/1) ... [2020-09-24 23:25:18,996 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@235e1467 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 11:25:18, skipping insertion in model container [2020-09-24 23:25:18,997 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 11:25:18" (1/1) ... [2020-09-24 23:25:19,006 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-24 23:25:19,151 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-24 23:25:20,981 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 23:25:21,016 INFO L203 MainTranslator]: Completed pre-run [2020-09-24 23:25:21,524 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 23:25:21,617 INFO L208 MainTranslator]: Completed translation [2020-09-24 23:25:21,618 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 11:25:21 WrapperNode [2020-09-24 23:25:21,618 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-24 23:25:21,619 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-24 23:25:21,619 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-24 23:25:21,619 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-24 23:25:21,633 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 11:25:21" (1/1) ... [2020-09-24 23:25:21,633 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 11:25:21" (1/1) ... [2020-09-24 23:25:21,702 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 11:25:21" (1/1) ... [2020-09-24 23:25:21,702 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 11:25:21" (1/1) ... [2020-09-24 23:25:22,086 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 11:25:21" (1/1) ... [2020-09-24 23:25:22,102 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 11:25:21" (1/1) ... [2020-09-24 23:25:22,131 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 11:25:21" (1/1) ... [2020-09-24 23:25:22,162 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-24 23:25:22,162 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-24 23:25:22,162 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-24 23:25:22,163 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-24 23:25:22,164 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 11:25:21" (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 [2020-09-24 23:25:22,264 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-24 23:25:22,265 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-24 23:25:22,265 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~int~X~$Pointer$~X~~gfp_t~0~X~$Pointer$~TO~$Pointer$ [2020-09-24 23:25:22,265 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~int~X~$Pointer$~X~~dma_addr_t~0~X~$Pointer$~TO~VOID [2020-09-24 23:25:22,265 INFO L138 BoogieDeclarations]: Found implementation of procedure arch_local_save_flags [2020-09-24 23:25:22,266 INFO L138 BoogieDeclarations]: Found implementation of procedure arch_irqs_disabled_flags [2020-09-24 23:25:22,266 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_get_intfdata [2020-09-24 23:25:22,266 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_set_intfdata [2020-09-24 23:25:22,267 INFO L138 BoogieDeclarations]: Found implementation of procedure interface_to_usbdev [2020-09-24 23:25:22,267 INFO L138 BoogieDeclarations]: Found implementation of procedure __create_pipe [2020-09-24 23:25:22,267 INFO L138 BoogieDeclarations]: Found implementation of procedure is_device_dma_capable [2020-09-24 23:25:22,267 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2020-09-24 23:25:22,267 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_alloc_coherent_mask [2020-09-24 23:25:22,268 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_alloc_coherent_gfp_flags [2020-09-24 23:25:22,268 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_alloc_attrs [2020-09-24 23:25:22,268 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_free_attrs [2020-09-24 23:25:22,268 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_alloc_consistent [2020-09-24 23:25:22,268 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_free_consistent [2020-09-24 23:25:22,268 INFO L138 BoogieDeclarations]: Found implementation of procedure flexcop_usb_readwrite_dw [2020-09-24 23:25:22,269 INFO L138 BoogieDeclarations]: Found implementation of procedure flexcop_usb_v8_memory_req [2020-09-24 23:25:22,269 INFO L138 BoogieDeclarations]: Found implementation of procedure flexcop_usb_memory_req [2020-09-24 23:25:22,269 INFO L138 BoogieDeclarations]: Found implementation of procedure flexcop_usb_get_mac_addr [2020-09-24 23:25:22,269 INFO L138 BoogieDeclarations]: Found implementation of procedure flexcop_usb_i2c_req [2020-09-24 23:25:22,269 INFO L138 BoogieDeclarations]: Found implementation of procedure flexcop_usb_read_ibi_reg [2020-09-24 23:25:22,270 INFO L138 BoogieDeclarations]: Found implementation of procedure flexcop_usb_write_ibi_reg [2020-09-24 23:25:22,270 INFO L138 BoogieDeclarations]: Found implementation of procedure flexcop_usb_i2c_request [2020-09-24 23:25:22,270 INFO L138 BoogieDeclarations]: Found implementation of procedure flexcop_usb_process_frame [2020-09-24 23:25:22,270 INFO L138 BoogieDeclarations]: Found implementation of procedure flexcop_usb_urb_complete [2020-09-24 23:25:22,270 INFO L138 BoogieDeclarations]: Found implementation of procedure flexcop_usb_stream_control [2020-09-24 23:25:22,270 INFO L138 BoogieDeclarations]: Found implementation of procedure flexcop_usb_transfer_exit [2020-09-24 23:25:22,271 INFO L138 BoogieDeclarations]: Found implementation of procedure flexcop_usb_transfer_init [2020-09-24 23:25:22,271 INFO L138 BoogieDeclarations]: Found implementation of procedure flexcop_usb_init [2020-09-24 23:25:22,271 INFO L138 BoogieDeclarations]: Found implementation of procedure flexcop_usb_exit [2020-09-24 23:25:22,271 INFO L138 BoogieDeclarations]: Found implementation of procedure flexcop_usb_probe [2020-09-24 23:25:22,271 INFO L138 BoogieDeclarations]: Found implementation of procedure flexcop_usb_disconnect [2020-09-24 23:25:22,272 INFO L138 BoogieDeclarations]: Found implementation of procedure flexcop_usb_driver_init [2020-09-24 23:25:22,272 INFO L138 BoogieDeclarations]: Found implementation of procedure flexcop_usb_driver_exit [2020-09-24 23:25:22,272 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-24 23:25:22,272 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_1 [2020-09-24 23:25:22,272 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_2 [2020-09-24 23:25:22,272 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_3 [2020-09-24 23:25:22,273 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_trylock_4 [2020-09-24 23:25:22,273 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_5 [2020-09-24 23:25:22,273 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_6 [2020-09-24 23:25:22,273 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_7 [2020-09-24 23:25:22,273 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_register_driver_8 [2020-09-24 23:25:22,273 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_deregister_9 [2020-09-24 23:25:22,274 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2020-09-24 23:25:22,274 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2020-09-24 23:25:22,274 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_trap [2020-09-24 23:25:22,274 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_interruptible_cred_guard_mutex_of_signal_struct [2020-09-24 23:25:22,274 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_killable_cred_guard_mutex_of_signal_struct [2020-09-24 23:25:22,274 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_cred_guard_mutex_of_signal_struct [2020-09-24 23:25:22,275 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_trylock_cred_guard_mutex_of_signal_struct [2020-09-24 23:25:22,275 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_dec_and_mutex_lock_cred_guard_mutex_of_signal_struct [2020-09-24 23:25:22,275 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_is_locked_cred_guard_mutex_of_signal_struct [2020-09-24 23:25:22,275 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_cred_guard_mutex_of_signal_struct [2020-09-24 23:25:22,275 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_interruptible_lock [2020-09-24 23:25:22,276 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_killable_lock [2020-09-24 23:25:22,276 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_lock [2020-09-24 23:25:22,276 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_trylock_lock [2020-09-24 23:25:22,276 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_dec_and_mutex_lock_lock [2020-09-24 23:25:22,276 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_is_locked_lock [2020-09-24 23:25:22,277 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_lock [2020-09-24 23:25:22,277 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_interruptible_mutex_of_device [2020-09-24 23:25:22,277 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_killable_mutex_of_device [2020-09-24 23:25:22,277 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_mutex_of_device [2020-09-24 23:25:22,277 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_trylock_mutex_of_device [2020-09-24 23:25:22,277 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_dec_and_mutex_lock_mutex_of_device [2020-09-24 23:25:22,278 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_is_locked_mutex_of_device [2020-09-24 23:25:22,278 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_mutex_of_device [2020-09-24 23:25:22,278 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize [2020-09-24 23:25:22,278 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2020-09-24 23:25:22,278 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_dma_alloc_coherent [2020-09-24 23:25:22,278 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_dma_free_coherent [2020-09-24 23:25:22,279 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2020-09-24 23:25:22,279 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_get_drvdata [2020-09-24 23:25:22,279 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_set_drvdata [2020-09-24 23:25:22,279 INFO L138 BoogieDeclarations]: Found implementation of procedure flexcop_device_exit [2020-09-24 23:25:22,279 INFO L138 BoogieDeclarations]: Found implementation of procedure flexcop_device_initialize [2020-09-24 23:25:22,279 INFO L138 BoogieDeclarations]: Found implementation of procedure flexcop_device_kfree [2020-09-24 23:25:22,280 INFO L138 BoogieDeclarations]: Found implementation of procedure flexcop_device_kmalloc [2020-09-24 23:25:22,280 INFO L138 BoogieDeclarations]: Found implementation of procedure flexcop_pass_dmx_packets [2020-09-24 23:25:22,280 INFO L138 BoogieDeclarations]: Found implementation of procedure flexcop_sram_ctrl [2020-09-24 23:25:22,280 INFO L138 BoogieDeclarations]: Found implementation of procedure flexcop_sram_set_dest [2020-09-24 23:25:22,280 INFO L138 BoogieDeclarations]: Found implementation of procedure flexcop_wan_set_speed [2020-09-24 23:25:22,280 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock [2020-09-24 23:25:22,281 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_trylock [2020-09-24 23:25:22,281 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2020-09-24 23:25:22,281 INFO L138 BoogieDeclarations]: Found implementation of procedure printk [2020-09-24 23:25:22,281 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_alloc_urb [2020-09-24 23:25:22,281 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_control_msg [2020-09-24 23:25:22,281 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_deregister [2020-09-24 23:25:22,282 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_free_urb [2020-09-24 23:25:22,282 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_kill_urb [2020-09-24 23:25:22,282 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_register_driver [2020-09-24 23:25:22,282 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_set_interface [2020-09-24 23:25:22,282 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_submit_urb [2020-09-24 23:25:22,282 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2020-09-24 23:25:22,283 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2020-09-24 23:25:22,283 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2020-09-24 23:25:22,283 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2020-09-24 23:25:22,283 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-24 23:25:22,283 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2020-09-24 23:25:22,284 INFO L130 BoogieDeclarations]: Found specification of procedure printk [2020-09-24 23:25:22,284 INFO L130 BoogieDeclarations]: Found specification of procedure memset [2020-09-24 23:25:22,284 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2020-09-24 23:25:22,284 INFO L130 BoogieDeclarations]: Found specification of procedure arch_local_save_flags [2020-09-24 23:25:22,284 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-24 23:25:22,284 INFO L130 BoogieDeclarations]: Found specification of procedure arch_irqs_disabled_flags [2020-09-24 23:25:22,285 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_trylock [2020-09-24 23:25:22,285 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_trylock_4 [2020-09-24 23:25:22,285 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2020-09-24 23:25:22,285 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_2 [2020-09-24 23:25:22,285 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_5 [2020-09-24 23:25:22,285 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_7 [2020-09-24 23:25:22,286 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock [2020-09-24 23:25:22,286 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_1 [2020-09-24 23:25:22,286 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_3 [2020-09-24 23:25:22,286 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_6 [2020-09-24 23:25:22,286 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_cred_guard_mutex_of_signal_struct [2020-09-24 23:25:22,286 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_cred_guard_mutex_of_signal_struct [2020-09-24 23:25:22,286 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_lock [2020-09-24 23:25:22,287 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_lock [2020-09-24 23:25:22,287 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_mutex_of_device [2020-09-24 23:25:22,287 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_trylock_mutex_of_device [2020-09-24 23:25:22,287 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_mutex_of_device [2020-09-24 23:25:22,287 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-24 23:25:22,287 INFO L130 BoogieDeclarations]: Found specification of procedure dev_get_drvdata [2020-09-24 23:25:22,288 INFO L130 BoogieDeclarations]: Found specification of procedure dev_set_drvdata [2020-09-24 23:25:22,288 INFO L130 BoogieDeclarations]: Found specification of procedure usb_get_intfdata [2020-09-24 23:25:22,288 INFO L130 BoogieDeclarations]: Found specification of procedure usb_set_intfdata [2020-09-24 23:25:22,288 INFO L130 BoogieDeclarations]: Found specification of procedure interface_to_usbdev [2020-09-24 23:25:22,288 INFO L130 BoogieDeclarations]: Found specification of procedure usb_register_driver [2020-09-24 23:25:22,289 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_register_driver_8 [2020-09-24 23:25:22,289 INFO L130 BoogieDeclarations]: Found specification of procedure usb_deregister [2020-09-24 23:25:22,289 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_deregister_9 [2020-09-24 23:25:22,289 INFO L130 BoogieDeclarations]: Found specification of procedure usb_alloc_urb [2020-09-24 23:25:22,289 INFO L130 BoogieDeclarations]: Found specification of procedure usb_free_urb [2020-09-24 23:25:22,289 INFO L130 BoogieDeclarations]: Found specification of procedure usb_submit_urb [2020-09-24 23:25:22,289 INFO L130 BoogieDeclarations]: Found specification of procedure usb_kill_urb [2020-09-24 23:25:22,290 INFO L130 BoogieDeclarations]: Found specification of procedure usb_control_msg [2020-09-24 23:25:22,290 INFO L130 BoogieDeclarations]: Found specification of procedure usb_set_interface [2020-09-24 23:25:22,290 INFO L130 BoogieDeclarations]: Found specification of procedure __create_pipe [2020-09-24 23:25:22,290 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-24 23:25:22,290 INFO L130 BoogieDeclarations]: Found specification of procedure is_device_dma_capable [2020-09-24 23:25:22,290 INFO L130 BoogieDeclarations]: Found specification of procedure debug_dma_alloc_coherent [2020-09-24 23:25:22,291 INFO L130 BoogieDeclarations]: Found specification of procedure debug_dma_free_coherent [2020-09-24 23:25:22,291 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2020-09-24 23:25:22,291 INFO L130 BoogieDeclarations]: Found specification of procedure dma_alloc_coherent_mask [2020-09-24 23:25:22,291 INFO L130 BoogieDeclarations]: Found specification of procedure dma_alloc_coherent_gfp_flags [2020-09-24 23:25:22,291 INFO L130 BoogieDeclarations]: Found specification of procedure dma_alloc_attrs [2020-09-24 23:25:22,291 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~int~X~$Pointer$~X~~gfp_t~0~X~$Pointer$~TO~$Pointer$ [2020-09-24 23:25:22,292 INFO L130 BoogieDeclarations]: Found specification of procedure dma_free_attrs [2020-09-24 23:25:22,292 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-24 23:25:22,292 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~int~X~$Pointer$~X~~dma_addr_t~0~X~$Pointer$~TO~VOID [2020-09-24 23:25:22,292 INFO L130 BoogieDeclarations]: Found specification of procedure pci_alloc_consistent [2020-09-24 23:25:22,292 INFO L130 BoogieDeclarations]: Found specification of procedure pci_free_consistent [2020-09-24 23:25:22,292 INFO L130 BoogieDeclarations]: Found specification of procedure flexcop_pass_dmx_packets [2020-09-24 23:25:22,293 INFO L130 BoogieDeclarations]: Found specification of procedure flexcop_device_kmalloc [2020-09-24 23:25:22,293 INFO L130 BoogieDeclarations]: Found specification of procedure flexcop_device_kfree [2020-09-24 23:25:22,293 INFO L130 BoogieDeclarations]: Found specification of procedure flexcop_device_initialize [2020-09-24 23:25:22,293 INFO L130 BoogieDeclarations]: Found specification of procedure flexcop_device_exit [2020-09-24 23:25:22,293 INFO L130 BoogieDeclarations]: Found specification of procedure flexcop_sram_set_dest [2020-09-24 23:25:22,293 INFO L130 BoogieDeclarations]: Found specification of procedure flexcop_wan_set_speed [2020-09-24 23:25:22,293 INFO L130 BoogieDeclarations]: Found specification of procedure flexcop_sram_ctrl [2020-09-24 23:25:22,294 INFO L130 BoogieDeclarations]: Found specification of procedure flexcop_usb_readwrite_dw [2020-09-24 23:25:22,294 INFO L130 BoogieDeclarations]: Found specification of procedure flexcop_usb_v8_memory_req [2020-09-24 23:25:22,294 INFO L130 BoogieDeclarations]: Found specification of procedure flexcop_usb_memory_req [2020-09-24 23:25:22,294 INFO L130 BoogieDeclarations]: Found specification of procedure flexcop_usb_get_mac_addr [2020-09-24 23:25:22,294 INFO L130 BoogieDeclarations]: Found specification of procedure flexcop_usb_i2c_req [2020-09-24 23:25:22,294 INFO L130 BoogieDeclarations]: Found specification of procedure flexcop_usb_read_ibi_reg [2020-09-24 23:25:22,295 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-24 23:25:22,295 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-24 23:25:22,295 INFO L130 BoogieDeclarations]: Found specification of procedure flexcop_usb_write_ibi_reg [2020-09-24 23:25:22,295 INFO L130 BoogieDeclarations]: Found specification of procedure flexcop_usb_i2c_request [2020-09-24 23:25:22,295 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy [2020-09-24 23:25:22,295 INFO L130 BoogieDeclarations]: Found specification of procedure flexcop_usb_process_frame [2020-09-24 23:25:22,295 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2020-09-24 23:25:22,296 INFO L130 BoogieDeclarations]: Found specification of procedure flexcop_usb_urb_complete [2020-09-24 23:25:22,296 INFO L130 BoogieDeclarations]: Found specification of procedure flexcop_usb_stream_control [2020-09-24 23:25:22,296 INFO L130 BoogieDeclarations]: Found specification of procedure flexcop_usb_transfer_exit [2020-09-24 23:25:22,296 INFO L130 BoogieDeclarations]: Found specification of procedure flexcop_usb_transfer_init [2020-09-24 23:25:22,296 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-24 23:25:22,296 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2020-09-24 23:25:22,296 INFO L130 BoogieDeclarations]: Found specification of procedure flexcop_usb_init [2020-09-24 23:25:22,297 INFO L130 BoogieDeclarations]: Found specification of procedure flexcop_usb_exit [2020-09-24 23:25:22,297 INFO L130 BoogieDeclarations]: Found specification of procedure flexcop_usb_probe [2020-09-24 23:25:22,297 INFO L130 BoogieDeclarations]: Found specification of procedure flexcop_usb_disconnect [2020-09-24 23:25:22,297 INFO L130 BoogieDeclarations]: Found specification of procedure flexcop_usb_driver_init [2020-09-24 23:25:22,297 INFO L130 BoogieDeclarations]: Found specification of procedure flexcop_usb_driver_exit [2020-09-24 23:25:22,297 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize [2020-09-24 23:25:22,298 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2020-09-24 23:25:22,298 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-24 23:25:22,298 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2020-09-24 23:25:22,298 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_trap [2020-09-24 23:25:22,298 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_interruptible_cred_guard_mutex_of_signal_struct [2020-09-24 23:25:22,298 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_killable_cred_guard_mutex_of_signal_struct [2020-09-24 23:25:22,298 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_trylock_cred_guard_mutex_of_signal_struct [2020-09-24 23:25:22,299 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_dec_and_mutex_lock_cred_guard_mutex_of_signal_struct [2020-09-24 23:25:22,299 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_is_locked_cred_guard_mutex_of_signal_struct [2020-09-24 23:25:22,299 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_interruptible_lock [2020-09-24 23:25:22,299 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_killable_lock [2020-09-24 23:25:22,299 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_trylock_lock [2020-09-24 23:25:22,299 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_dec_and_mutex_lock_lock [2020-09-24 23:25:22,300 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_is_locked_lock [2020-09-24 23:25:22,300 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_interruptible_mutex_of_device [2020-09-24 23:25:22,300 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_killable_mutex_of_device [2020-09-24 23:25:22,300 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_dec_and_mutex_lock_mutex_of_device [2020-09-24 23:25:22,300 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_is_locked_mutex_of_device [2020-09-24 23:25:22,300 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_bool [2020-09-24 23:25:22,301 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-24 23:25:22,301 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2020-09-24 23:25:22,301 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-24 23:25:22,301 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-24 23:25:22,301 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2020-09-24 23:25:22,301 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-24 23:25:22,302 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-24 23:25:22,302 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2020-09-24 23:25:22,302 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-24 23:25:22,302 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2020-09-24 23:25:22,302 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2020-09-24 23:25:22,302 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2020-09-24 23:25:22,302 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2020-09-24 23:25:26,987 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-24 23:25:26,987 INFO L295 CfgBuilder]: Removed 0 assume(true) statements. [2020-09-24 23:25:27,002 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 11:25:27 BoogieIcfgContainer [2020-09-24 23:25:27,003 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-24 23:25:27,004 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-24 23:25:27,004 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-24 23:25:27,009 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-24 23:25:27,009 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.09 11:25:18" (1/3) ... [2020-09-24 23:25:27,010 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@15de57bc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 11:25:27, skipping insertion in model container [2020-09-24 23:25:27,010 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 11:25:21" (2/3) ... [2020-09-24 23:25:27,011 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@15de57bc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 11:25:27, skipping insertion in model container [2020-09-24 23:25:27,011 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 11:25:27" (3/3) ... [2020-09-24 23:25:27,013 INFO L109 eAbstractionObserver]: Analyzing ICFG 32_7a_cilled_linux-3.8-rc1-drivers--media--usb--b2c2--b2c2-flexcop-usb.ko-main.cil.out.i [2020-09-24 23:25:27,027 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-24 23:25:27,041 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-24 23:25:27,070 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-24 23:25:27,114 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-24 23:25:27,114 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-24 23:25:27,115 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-24 23:25:27,115 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-24 23:25:27,115 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-24 23:25:27,115 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-24 23:25:27,116 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-24 23:25:27,116 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-24 23:25:27,169 INFO L276 IsEmpty]: Start isEmpty. Operand 2184 states. [2020-09-24 23:25:27,188 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 193 [2020-09-24 23:25:27,188 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 23:25:27,190 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 23:25:27,191 INFO L427 AbstractCegarLoop]: === Iteration 1 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 23:25:27,199 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 23:25:27,200 INFO L82 PathProgramCache]: Analyzing trace with hash 2037642771, now seen corresponding path program 1 times [2020-09-24 23:25:27,211 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 23:25:27,212 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2047091693] [2020-09-24 23:25:27,212 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 23:25:27,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:25:28,147 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:25:29,098 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:25:30,134 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:25:30,135 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 211 [2020-09-24 23:25:30,135 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 23:25:30,136 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2257 [2020-09-24 23:25:30,139 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 23:25:30,139 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:25:30,139 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 169 [2020-09-24 23:25:30,140 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-09-24 23:25:30,140 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-09-24 23:25:31,222 WARN L193 SmtUtils]: Spent 633.00 ms on a formula simplification that was a NOOP. DAG size: 316 [2020-09-24 23:25:31,225 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 23:25:31,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:25:31,336 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:25:31,863 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:25:31,863 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 153 [2020-09-24 23:25:31,864 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:25:31,864 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 599 [2020-09-24 23:25:31,865 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 23:25:31,865 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 23:25:31,865 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:25:31,866 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 23:25:31,866 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:25:32,171 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2020-09-24 23:25:32,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:25:32,205 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:25:32,295 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:25:32,296 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 23:25:32,296 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:25:32,296 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 121 [2020-09-24 23:25:32,296 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 23:25:32,297 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 23:25:32,297 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:25:32,297 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 23:25:32,297 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:25:32,362 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2020-09-24 23:25:32,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:25:32,402 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:25:32,500 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:25:32,500 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-09-24 23:25:32,501 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:25:32,501 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 133 [2020-09-24 23:25:32,501 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 23:25:32,501 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 23:25:32,502 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 18 [2020-09-24 23:25:32,502 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 23:25:32,502 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:25:32,547 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 23:25:32,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:25:32,580 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:25:32,674 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:25:32,674 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-09-24 23:25:32,675 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:25:32,675 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 123 [2020-09-24 23:25:32,675 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 23:25:32,675 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 23:25:32,676 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:25:32,676 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 23:25:32,676 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:25:32,722 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-24 23:25:32,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:25:32,750 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:25:32,809 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:25:32,809 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 23:25:32,810 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:25:32,810 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 85 [2020-09-24 23:25:32,810 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 23:25:32,810 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 23:25:32,811 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:25:32,811 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 23:25:32,811 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:25:32,905 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 23:25:32,905 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2047091693] [2020-09-24 23:25:32,908 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 23:25:32,908 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-09-24 23:25:32,909 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [517513112] [2020-09-24 23:25:32,916 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-24 23:25:32,916 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 23:25:32,934 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-24 23:25:32,936 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-09-24 23:25:32,939 INFO L87 Difference]: Start difference. First operand 2184 states. Second operand 6 states. [2020-09-24 23:25:34,595 WARN L193 SmtUtils]: Spent 758.00 ms on a formula simplification that was a NOOP. DAG size: 318 [2020-09-24 23:25:44,745 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 23:25:44,746 INFO L93 Difference]: Finished difference Result 1878 states and 2091 transitions. [2020-09-24 23:25:44,746 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-09-24 23:25:44,748 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 192 [2020-09-24 23:25:44,751 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 23:25:44,786 INFO L225 Difference]: With dead ends: 1878 [2020-09-24 23:25:44,786 INFO L226 Difference]: Without dead ends: 1838 [2020-09-24 23:25:44,794 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=42, Invalid=68, Unknown=0, NotChecked=0, Total=110 [2020-09-24 23:25:44,822 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1838 states. [2020-09-24 23:25:45,102 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1838 to 1541. [2020-09-24 23:25:45,104 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1541 states. [2020-09-24 23:25:45,113 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1541 states to 1541 states and 1676 transitions. [2020-09-24 23:25:45,116 INFO L78 Accepts]: Start accepts. Automaton has 1541 states and 1676 transitions. Word has length 192 [2020-09-24 23:25:45,117 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 23:25:45,117 INFO L479 AbstractCegarLoop]: Abstraction has 1541 states and 1676 transitions. [2020-09-24 23:25:45,118 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-24 23:25:45,118 INFO L276 IsEmpty]: Start isEmpty. Operand 1541 states and 1676 transitions. [2020-09-24 23:25:45,123 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 220 [2020-09-24 23:25:45,124 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 23:25:45,124 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 23:25:45,125 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-24 23:25:45,125 INFO L427 AbstractCegarLoop]: === Iteration 2 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 23:25:45,125 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 23:25:45,126 INFO L82 PathProgramCache]: Analyzing trace with hash 526616234, now seen corresponding path program 1 times [2020-09-24 23:25:45,126 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 23:25:45,126 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2134891757] [2020-09-24 23:25:45,127 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 23:25:45,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:25:45,541 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:25:46,440 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:25:46,440 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 238 [2020-09-24 23:25:46,440 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:25:46,441 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1112 [2020-09-24 23:25:46,441 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 23:25:46,441 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:25:46,441 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 162 [2020-09-24 23:25:46,442 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 72 [2020-09-24 23:25:46,442 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:25:47,572 WARN L193 SmtUtils]: Spent 658.00 ms on a formula simplification that was a NOOP. DAG size: 316 [2020-09-24 23:25:47,575 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 23:25:47,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:25:47,679 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:25:48,102 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:25:48,103 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 153 [2020-09-24 23:25:48,104 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:25:48,105 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 508 [2020-09-24 23:25:48,105 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 23:25:48,105 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 23:25:48,105 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:25:48,105 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 23:25:48,106 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:25:48,324 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2020-09-24 23:25:48,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:25:48,362 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:25:48,507 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:25:48,508 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 23:25:48,508 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:25:48,508 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 174 [2020-09-24 23:25:48,508 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 23:25:48,511 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:25:48,511 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:25:48,512 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-09-24 23:25:48,512 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-09-24 23:25:48,590 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 177 [2020-09-24 23:25:48,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:25:48,645 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:25:48,813 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:25:48,813 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-09-24 23:25:48,814 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:25:48,814 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 204 [2020-09-24 23:25:48,814 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 23:25:48,814 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:25:48,814 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:25:48,815 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 37 [2020-09-24 23:25:48,815 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:25:48,868 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-24 23:25:48,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:25:48,901 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:25:48,994 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:25:48,994 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 31 [2020-09-24 23:25:48,995 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:25:48,995 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 123 [2020-09-24 23:25:48,995 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 23:25:48,995 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 23:25:48,995 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:25:48,996 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 23:25:48,996 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:25:49,060 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-24 23:25:49,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:25:49,089 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:25:49,148 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:25:49,148 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-09-24 23:25:49,148 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:25:49,149 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 86 [2020-09-24 23:25:49,149 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 23:25:49,149 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 23:25:49,149 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:25:49,150 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 23:25:49,150 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:25:49,264 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 23:25:49,265 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2134891757] [2020-09-24 23:25:49,265 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 23:25:49,265 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-09-24 23:25:49,266 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2003547684] [2020-09-24 23:25:49,270 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-24 23:25:49,270 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 23:25:49,270 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-24 23:25:49,271 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-09-24 23:25:49,271 INFO L87 Difference]: Start difference. First operand 1541 states and 1676 transitions. Second operand 6 states. [2020-09-24 23:25:50,869 WARN L193 SmtUtils]: Spent 690.00 ms on a formula simplification that was a NOOP. DAG size: 318 [2020-09-24 23:25:54,642 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 23:25:54,642 INFO L93 Difference]: Finished difference Result 1839 states and 2039 transitions. [2020-09-24 23:25:54,644 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-09-24 23:25:54,644 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 219 [2020-09-24 23:25:54,646 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 23:25:54,656 INFO L225 Difference]: With dead ends: 1839 [2020-09-24 23:25:54,656 INFO L226 Difference]: Without dead ends: 1836 [2020-09-24 23:25:54,660 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=42, Invalid=68, Unknown=0, NotChecked=0, Total=110 [2020-09-24 23:25:54,663 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1836 states. [2020-09-24 23:25:54,945 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1836 to 1540. [2020-09-24 23:25:54,946 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1540 states. [2020-09-24 23:25:54,953 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1540 states to 1540 states and 1674 transitions. [2020-09-24 23:25:54,953 INFO L78 Accepts]: Start accepts. Automaton has 1540 states and 1674 transitions. Word has length 219 [2020-09-24 23:25:54,954 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 23:25:54,954 INFO L479 AbstractCegarLoop]: Abstraction has 1540 states and 1674 transitions. [2020-09-24 23:25:54,954 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-24 23:25:54,955 INFO L276 IsEmpty]: Start isEmpty. Operand 1540 states and 1674 transitions. [2020-09-24 23:25:54,957 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 221 [2020-09-24 23:25:54,957 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 23:25:54,958 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 23:25:54,958 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-24 23:25:54,958 INFO L427 AbstractCegarLoop]: === Iteration 3 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 23:25:54,959 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 23:25:54,959 INFO L82 PathProgramCache]: Analyzing trace with hash -855644402, now seen corresponding path program 1 times [2020-09-24 23:25:54,959 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 23:25:54,959 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [114738169] [2020-09-24 23:25:54,959 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 23:25:55,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:25:55,295 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:25:56,092 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:25:56,093 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 239 [2020-09-24 23:25:56,093 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:25:56,093 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 953 [2020-09-24 23:25:56,093 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 23:25:56,093 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:25:56,094 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 163 [2020-09-24 23:25:56,094 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 72 [2020-09-24 23:25:56,094 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:25:57,083 WARN L193 SmtUtils]: Spent 545.00 ms on a formula simplification that was a NOOP. DAG size: 316 [2020-09-24 23:25:57,085 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 23:25:57,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:25:57,168 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:25:57,540 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:25:57,540 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 153 [2020-09-24 23:25:57,541 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:25:57,541 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 436 [2020-09-24 23:25:57,541 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 23:25:57,541 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 23:25:57,541 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:25:57,542 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 23:25:57,542 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:25:57,797 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2020-09-24 23:25:57,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:25:57,838 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:25:57,999 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:25:57,999 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 23:25:57,999 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:25:58,000 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 193 [2020-09-24 23:25:58,000 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 23:25:58,000 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:25:58,001 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:25:58,001 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-24 23:25:58,001 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:25:58,093 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 177 [2020-09-24 23:25:58,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:25:58,162 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:25:58,353 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:25:58,354 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-09-24 23:25:58,354 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:25:58,354 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 237 [2020-09-24 23:25:58,355 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 23:25:58,355 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:25:58,355 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:25:58,356 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 37 [2020-09-24 23:25:58,356 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:25:58,428 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-24 23:25:58,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:25:58,469 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:25:58,549 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:25:58,550 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 31 [2020-09-24 23:25:58,550 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:25:58,550 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 118 [2020-09-24 23:25:58,551 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 23:25:58,551 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 23:25:58,552 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:25:58,552 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 23:25:58,552 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 23:25:58,628 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-24 23:25:58,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:25:58,661 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:25:58,739 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:25:58,739 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-09-24 23:25:58,740 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:25:58,740 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 109 [2020-09-24 23:25:58,740 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 23:25:58,740 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 23:25:58,741 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:25:58,741 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 23:25:58,741 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:25:58,901 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 23:25:58,904 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [114738169] [2020-09-24 23:25:58,904 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 23:25:58,905 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-09-24 23:25:58,905 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1013289565] [2020-09-24 23:25:58,906 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-24 23:25:58,907 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 23:25:58,908 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-24 23:25:58,908 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-09-24 23:25:58,909 INFO L87 Difference]: Start difference. First operand 1540 states and 1674 transitions. Second operand 6 states. [2020-09-24 23:26:00,506 WARN L193 SmtUtils]: Spent 662.00 ms on a formula simplification that was a NOOP. DAG size: 318 [2020-09-24 23:26:04,403 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 23:26:04,403 INFO L93 Difference]: Finished difference Result 1838 states and 2037 transitions. [2020-09-24 23:26:04,404 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-09-24 23:26:04,404 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 220 [2020-09-24 23:26:04,405 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 23:26:04,418 INFO L225 Difference]: With dead ends: 1838 [2020-09-24 23:26:04,418 INFO L226 Difference]: Without dead ends: 1835 [2020-09-24 23:26:04,423 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=42, Invalid=68, Unknown=0, NotChecked=0, Total=110 [2020-09-24 23:26:04,427 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1835 states. [2020-09-24 23:26:04,613 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1835 to 1539. [2020-09-24 23:26:04,613 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1539 states. [2020-09-24 23:26:04,619 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1539 states to 1539 states and 1672 transitions. [2020-09-24 23:26:04,620 INFO L78 Accepts]: Start accepts. Automaton has 1539 states and 1672 transitions. Word has length 220 [2020-09-24 23:26:04,620 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 23:26:04,620 INFO L479 AbstractCegarLoop]: Abstraction has 1539 states and 1672 transitions. [2020-09-24 23:26:04,620 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-24 23:26:04,621 INFO L276 IsEmpty]: Start isEmpty. Operand 1539 states and 1672 transitions. [2020-09-24 23:26:04,623 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 222 [2020-09-24 23:26:04,624 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 23:26:04,624 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 23:26:04,624 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-24 23:26:04,624 INFO L427 AbstractCegarLoop]: === Iteration 4 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 23:26:04,625 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 23:26:04,625 INFO L82 PathProgramCache]: Analyzing trace with hash -756046291, now seen corresponding path program 1 times [2020-09-24 23:26:04,625 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 23:26:04,625 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1403214121] [2020-09-24 23:26:04,626 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 23:26:04,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:26:04,912 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:26:05,723 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:26:05,723 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 240 [2020-09-24 23:26:05,723 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:26:05,724 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 953 [2020-09-24 23:26:05,724 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 23:26:05,724 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:26:05,724 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 164 [2020-09-24 23:26:05,724 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 72 [2020-09-24 23:26:05,724 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:26:06,742 WARN L193 SmtUtils]: Spent 541.00 ms on a formula simplification that was a NOOP. DAG size: 316 [2020-09-24 23:26:06,744 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 23:26:06,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:26:06,812 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:26:07,136 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:26:07,137 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 153 [2020-09-24 23:26:07,137 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:26:07,137 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 379 [2020-09-24 23:26:07,137 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 23:26:07,137 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 23:26:07,138 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:26:07,138 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 23:26:07,138 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 23:26:07,323 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2020-09-24 23:26:07,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 23:26:07,358 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 23:26:07,466 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 23:26:07,467 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 23:26:07,467 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 23:26:07,467 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 134 [2020-09-24 23:26:07,467 FATAL L256 erpolLogProxyWrapper]: Heuristic: HIGHLEXORDER [2020-09-24 23:26:07,468 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 23:26:07,468 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 23:26:07,469 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 23:26:07,469 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1