/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=NARROWEST --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 [2020-09-25 02:48:58,819 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 02:48:58,824 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 02:48:58,871 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 02:48:58,872 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 02:48:58,884 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 02:48:58,886 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 02:48:58,890 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 02:48:58,893 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 02:48:58,896 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 02:48:58,897 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 02:48:58,899 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 02:48:58,899 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 02:48:58,902 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 02:48:58,905 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 02:48:58,907 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 02:48:58,909 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 02:48:58,910 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 02:48:58,911 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 02:48:58,921 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 02:48:58,924 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 02:48:58,925 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 02:48:58,926 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 02:48:58,927 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 02:48:58,930 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 02:48:58,930 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 02:48:58,931 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 02:48:58,934 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 02:48:58,935 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 02:48:58,936 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 02:48:58,936 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 02:48:58,937 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 02:48:58,938 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 02:48:58,938 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 02:48:58,940 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 02:48:58,940 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 02:48:58,941 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 02:48:58,941 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 02:48:58,941 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 02:48:58,943 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 02:48:58,944 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 02:48:58,945 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 [2020-09-25 02:48:58,993 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 02:48:58,993 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 02:48:58,995 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 02:48:58,996 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 02:48:58,996 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 02:48:58,996 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 02:48:58,997 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 02:48:58,997 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 02:48:58,997 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 02:48:58,997 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 02:48:58,998 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 02:48:58,999 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 02:48:58,999 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 02:48:58,999 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 02:48:59,000 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 02:48:59,000 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 02:48:59,000 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 02:48:59,000 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 02:48:59,001 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 02:48:59,001 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 02:48:59,001 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 02:48:59,001 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 02:48:59,001 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 02:48:59,002 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 02:48:59,002 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 02:48:59,002 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 02:48:59,002 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-09-25 02:48:59,003 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=NARROWEST;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=NARROWEST;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=NARROWEST;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=NARROWEST;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=NARROWEST;log-additional-information=true; [2020-09-25 02:48:59,442 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 02:48:59,469 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 02:48:59,474 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 02:48:59,476 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 02:48:59,477 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 02:48:59,478 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--media--usb--b2c2--b2c2-flexcop-usb.ko-main.cil.out.i [2020-09-25 02:48:59,565 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/2a1bd9aa4/484b3a0299c04a1184e1726ebd62eebe/FLAG1fd6528cd [2020-09-25 02:49:00,511 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 02:49:00,512 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--media--usb--b2c2--b2c2-flexcop-usb.ko-main.cil.out.i [2020-09-25 02:49:00,559 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/2a1bd9aa4/484b3a0299c04a1184e1726ebd62eebe/FLAG1fd6528cd [2020-09-25 02:49:00,944 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/2a1bd9aa4/484b3a0299c04a1184e1726ebd62eebe [2020-09-25 02:49:00,956 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 02:49:00,962 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 02:49:00,963 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 02:49:00,963 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 02:49:00,967 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 02:49:00,968 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 02:49:00" (1/1) ... [2020-09-25 02:49:00,971 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@d1b9a41 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:49:00, skipping insertion in model container [2020-09-25 02:49:00,972 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 02:49:00" (1/1) ... [2020-09-25 02:49:00,980 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 02:49:01,123 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 02:49:03,122 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 02:49:03,160 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 02:49:03,765 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 02:49:03,922 INFO L208 MainTranslator]: Completed translation [2020-09-25 02:49:03,923 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:49:03 WrapperNode [2020-09-25 02:49:03,924 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 02:49:03,925 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 02:49:03,925 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 02:49:03,926 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 02:49:03,944 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:49:03" (1/1) ... [2020-09-25 02:49:03,945 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:49:03" (1/1) ... [2020-09-25 02:49:04,023 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:49:03" (1/1) ... [2020-09-25 02:49:04,024 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:49:03" (1/1) ... [2020-09-25 02:49:04,383 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:49:03" (1/1) ... [2020-09-25 02:49:04,397 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:49:03" (1/1) ... [2020-09-25 02:49:04,428 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:49:03" (1/1) ... [2020-09-25 02:49:04,450 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 02:49:04,451 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 02:49:04,451 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 02:49:04,451 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 02:49:04,452 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:49:03" (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 [2020-09-25 02:49:04,538 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 02:49:04,538 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 02:49:04,538 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~int~X~$Pointer$~X~~gfp_t~0~X~$Pointer$~TO~$Pointer$ [2020-09-25 02:49:04,539 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~int~X~$Pointer$~X~~dma_addr_t~0~X~$Pointer$~TO~VOID [2020-09-25 02:49:04,539 INFO L138 BoogieDeclarations]: Found implementation of procedure arch_local_save_flags [2020-09-25 02:49:04,539 INFO L138 BoogieDeclarations]: Found implementation of procedure arch_irqs_disabled_flags [2020-09-25 02:49:04,539 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_get_intfdata [2020-09-25 02:49:04,540 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_set_intfdata [2020-09-25 02:49:04,544 INFO L138 BoogieDeclarations]: Found implementation of procedure interface_to_usbdev [2020-09-25 02:49:04,544 INFO L138 BoogieDeclarations]: Found implementation of procedure __create_pipe [2020-09-25 02:49:04,544 INFO L138 BoogieDeclarations]: Found implementation of procedure is_device_dma_capable [2020-09-25 02:49:04,544 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2020-09-25 02:49:04,545 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_alloc_coherent_mask [2020-09-25 02:49:04,545 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_alloc_coherent_gfp_flags [2020-09-25 02:49:04,545 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_alloc_attrs [2020-09-25 02:49:04,545 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_free_attrs [2020-09-25 02:49:04,545 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_alloc_consistent [2020-09-25 02:49:04,546 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_free_consistent [2020-09-25 02:49:04,546 INFO L138 BoogieDeclarations]: Found implementation of procedure flexcop_usb_readwrite_dw [2020-09-25 02:49:04,546 INFO L138 BoogieDeclarations]: Found implementation of procedure flexcop_usb_v8_memory_req [2020-09-25 02:49:04,546 INFO L138 BoogieDeclarations]: Found implementation of procedure flexcop_usb_memory_req [2020-09-25 02:49:04,546 INFO L138 BoogieDeclarations]: Found implementation of procedure flexcop_usb_get_mac_addr [2020-09-25 02:49:04,547 INFO L138 BoogieDeclarations]: Found implementation of procedure flexcop_usb_i2c_req [2020-09-25 02:49:04,547 INFO L138 BoogieDeclarations]: Found implementation of procedure flexcop_usb_read_ibi_reg [2020-09-25 02:49:04,547 INFO L138 BoogieDeclarations]: Found implementation of procedure flexcop_usb_write_ibi_reg [2020-09-25 02:49:04,547 INFO L138 BoogieDeclarations]: Found implementation of procedure flexcop_usb_i2c_request [2020-09-25 02:49:04,547 INFO L138 BoogieDeclarations]: Found implementation of procedure flexcop_usb_process_frame [2020-09-25 02:49:04,551 INFO L138 BoogieDeclarations]: Found implementation of procedure flexcop_usb_urb_complete [2020-09-25 02:49:04,551 INFO L138 BoogieDeclarations]: Found implementation of procedure flexcop_usb_stream_control [2020-09-25 02:49:04,551 INFO L138 BoogieDeclarations]: Found implementation of procedure flexcop_usb_transfer_exit [2020-09-25 02:49:04,552 INFO L138 BoogieDeclarations]: Found implementation of procedure flexcop_usb_transfer_init [2020-09-25 02:49:04,552 INFO L138 BoogieDeclarations]: Found implementation of procedure flexcop_usb_init [2020-09-25 02:49:04,552 INFO L138 BoogieDeclarations]: Found implementation of procedure flexcop_usb_exit [2020-09-25 02:49:04,552 INFO L138 BoogieDeclarations]: Found implementation of procedure flexcop_usb_probe [2020-09-25 02:49:04,552 INFO L138 BoogieDeclarations]: Found implementation of procedure flexcop_usb_disconnect [2020-09-25 02:49:04,553 INFO L138 BoogieDeclarations]: Found implementation of procedure flexcop_usb_driver_init [2020-09-25 02:49:04,553 INFO L138 BoogieDeclarations]: Found implementation of procedure flexcop_usb_driver_exit [2020-09-25 02:49:04,553 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 02:49:04,553 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_1 [2020-09-25 02:49:04,553 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_2 [2020-09-25 02:49:04,553 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_3 [2020-09-25 02:49:04,553 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_trylock_4 [2020-09-25 02:49:04,554 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_5 [2020-09-25 02:49:04,554 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_6 [2020-09-25 02:49:04,554 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_7 [2020-09-25 02:49:04,554 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_register_driver_8 [2020-09-25 02:49:04,554 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_deregister_9 [2020-09-25 02:49:04,554 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2020-09-25 02:49:04,554 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2020-09-25 02:49:04,555 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_trap [2020-09-25 02:49:04,555 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_interruptible_cred_guard_mutex_of_signal_struct [2020-09-25 02:49:04,555 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_killable_cred_guard_mutex_of_signal_struct [2020-09-25 02:49:04,555 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_cred_guard_mutex_of_signal_struct [2020-09-25 02:49:04,555 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_trylock_cred_guard_mutex_of_signal_struct [2020-09-25 02:49:04,555 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_dec_and_mutex_lock_cred_guard_mutex_of_signal_struct [2020-09-25 02:49:04,556 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_is_locked_cred_guard_mutex_of_signal_struct [2020-09-25 02:49:04,556 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_cred_guard_mutex_of_signal_struct [2020-09-25 02:49:04,556 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_interruptible_lock [2020-09-25 02:49:04,556 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_killable_lock [2020-09-25 02:49:04,556 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_lock [2020-09-25 02:49:04,557 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_trylock_lock [2020-09-25 02:49:04,557 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_dec_and_mutex_lock_lock [2020-09-25 02:49:04,557 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_is_locked_lock [2020-09-25 02:49:04,557 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_lock [2020-09-25 02:49:04,557 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_interruptible_mutex_of_device [2020-09-25 02:49:04,557 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_killable_mutex_of_device [2020-09-25 02:49:04,557 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_mutex_of_device [2020-09-25 02:49:04,558 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_trylock_mutex_of_device [2020-09-25 02:49:04,558 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_dec_and_mutex_lock_mutex_of_device [2020-09-25 02:49:04,558 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_is_locked_mutex_of_device [2020-09-25 02:49:04,558 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_mutex_of_device [2020-09-25 02:49:04,558 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize [2020-09-25 02:49:04,558 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2020-09-25 02:49:04,559 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_dma_alloc_coherent [2020-09-25 02:49:04,559 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_dma_free_coherent [2020-09-25 02:49:04,559 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2020-09-25 02:49:04,559 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_get_drvdata [2020-09-25 02:49:04,559 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_set_drvdata [2020-09-25 02:49:04,559 INFO L138 BoogieDeclarations]: Found implementation of procedure flexcop_device_exit [2020-09-25 02:49:04,560 INFO L138 BoogieDeclarations]: Found implementation of procedure flexcop_device_initialize [2020-09-25 02:49:04,560 INFO L138 BoogieDeclarations]: Found implementation of procedure flexcop_device_kfree [2020-09-25 02:49:04,560 INFO L138 BoogieDeclarations]: Found implementation of procedure flexcop_device_kmalloc [2020-09-25 02:49:04,560 INFO L138 BoogieDeclarations]: Found implementation of procedure flexcop_pass_dmx_packets [2020-09-25 02:49:04,560 INFO L138 BoogieDeclarations]: Found implementation of procedure flexcop_sram_ctrl [2020-09-25 02:49:04,560 INFO L138 BoogieDeclarations]: Found implementation of procedure flexcop_sram_set_dest [2020-09-25 02:49:04,561 INFO L138 BoogieDeclarations]: Found implementation of procedure flexcop_wan_set_speed [2020-09-25 02:49:04,561 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock [2020-09-25 02:49:04,561 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_trylock [2020-09-25 02:49:04,561 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2020-09-25 02:49:04,561 INFO L138 BoogieDeclarations]: Found implementation of procedure printk [2020-09-25 02:49:04,562 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_alloc_urb [2020-09-25 02:49:04,562 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_control_msg [2020-09-25 02:49:04,562 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_deregister [2020-09-25 02:49:04,562 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_free_urb [2020-09-25 02:49:04,562 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_kill_urb [2020-09-25 02:49:04,562 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_register_driver [2020-09-25 02:49:04,562 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_set_interface [2020-09-25 02:49:04,563 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_submit_urb [2020-09-25 02:49:04,563 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2020-09-25 02:49:04,563 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2020-09-25 02:49:04,563 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2020-09-25 02:49:04,564 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2020-09-25 02:49:04,564 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 02:49:04,564 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2020-09-25 02:49:04,564 INFO L130 BoogieDeclarations]: Found specification of procedure printk [2020-09-25 02:49:04,564 INFO L130 BoogieDeclarations]: Found specification of procedure memset [2020-09-25 02:49:04,564 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2020-09-25 02:49:04,565 INFO L130 BoogieDeclarations]: Found specification of procedure arch_local_save_flags [2020-09-25 02:49:04,565 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-25 02:49:04,565 INFO L130 BoogieDeclarations]: Found specification of procedure arch_irqs_disabled_flags [2020-09-25 02:49:04,565 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_trylock [2020-09-25 02:49:04,565 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_trylock_4 [2020-09-25 02:49:04,565 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2020-09-25 02:49:04,565 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_2 [2020-09-25 02:49:04,566 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_5 [2020-09-25 02:49:04,566 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_7 [2020-09-25 02:49:04,566 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock [2020-09-25 02:49:04,566 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_1 [2020-09-25 02:49:04,566 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_3 [2020-09-25 02:49:04,566 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_6 [2020-09-25 02:49:04,567 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_cred_guard_mutex_of_signal_struct [2020-09-25 02:49:04,567 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_cred_guard_mutex_of_signal_struct [2020-09-25 02:49:04,567 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_lock [2020-09-25 02:49:04,567 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_lock [2020-09-25 02:49:04,567 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_mutex_of_device [2020-09-25 02:49:04,567 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_trylock_mutex_of_device [2020-09-25 02:49:04,568 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_mutex_of_device [2020-09-25 02:49:04,568 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-25 02:49:04,568 INFO L130 BoogieDeclarations]: Found specification of procedure dev_get_drvdata [2020-09-25 02:49:04,568 INFO L130 BoogieDeclarations]: Found specification of procedure dev_set_drvdata [2020-09-25 02:49:04,568 INFO L130 BoogieDeclarations]: Found specification of procedure usb_get_intfdata [2020-09-25 02:49:04,568 INFO L130 BoogieDeclarations]: Found specification of procedure usb_set_intfdata [2020-09-25 02:49:04,569 INFO L130 BoogieDeclarations]: Found specification of procedure interface_to_usbdev [2020-09-25 02:49:04,569 INFO L130 BoogieDeclarations]: Found specification of procedure usb_register_driver [2020-09-25 02:49:04,569 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_register_driver_8 [2020-09-25 02:49:04,569 INFO L130 BoogieDeclarations]: Found specification of procedure usb_deregister [2020-09-25 02:49:04,569 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_deregister_9 [2020-09-25 02:49:04,569 INFO L130 BoogieDeclarations]: Found specification of procedure usb_alloc_urb [2020-09-25 02:49:04,570 INFO L130 BoogieDeclarations]: Found specification of procedure usb_free_urb [2020-09-25 02:49:04,570 INFO L130 BoogieDeclarations]: Found specification of procedure usb_submit_urb [2020-09-25 02:49:04,570 INFO L130 BoogieDeclarations]: Found specification of procedure usb_kill_urb [2020-09-25 02:49:04,570 INFO L130 BoogieDeclarations]: Found specification of procedure usb_control_msg [2020-09-25 02:49:04,570 INFO L130 BoogieDeclarations]: Found specification of procedure usb_set_interface [2020-09-25 02:49:04,570 INFO L130 BoogieDeclarations]: Found specification of procedure __create_pipe [2020-09-25 02:49:04,571 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-25 02:49:04,571 INFO L130 BoogieDeclarations]: Found specification of procedure is_device_dma_capable [2020-09-25 02:49:04,571 INFO L130 BoogieDeclarations]: Found specification of procedure debug_dma_alloc_coherent [2020-09-25 02:49:04,571 INFO L130 BoogieDeclarations]: Found specification of procedure debug_dma_free_coherent [2020-09-25 02:49:04,571 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2020-09-25 02:49:04,571 INFO L130 BoogieDeclarations]: Found specification of procedure dma_alloc_coherent_mask [2020-09-25 02:49:04,572 INFO L130 BoogieDeclarations]: Found specification of procedure dma_alloc_coherent_gfp_flags [2020-09-25 02:49:04,572 INFO L130 BoogieDeclarations]: Found specification of procedure dma_alloc_attrs [2020-09-25 02:49:04,572 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~int~X~$Pointer$~X~~gfp_t~0~X~$Pointer$~TO~$Pointer$ [2020-09-25 02:49:04,572 INFO L130 BoogieDeclarations]: Found specification of procedure dma_free_attrs [2020-09-25 02:49:04,572 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-25 02:49:04,572 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~int~X~$Pointer$~X~~dma_addr_t~0~X~$Pointer$~TO~VOID [2020-09-25 02:49:04,573 INFO L130 BoogieDeclarations]: Found specification of procedure pci_alloc_consistent [2020-09-25 02:49:04,573 INFO L130 BoogieDeclarations]: Found specification of procedure pci_free_consistent [2020-09-25 02:49:04,573 INFO L130 BoogieDeclarations]: Found specification of procedure flexcop_pass_dmx_packets [2020-09-25 02:49:04,573 INFO L130 BoogieDeclarations]: Found specification of procedure flexcop_device_kmalloc [2020-09-25 02:49:04,573 INFO L130 BoogieDeclarations]: Found specification of procedure flexcop_device_kfree [2020-09-25 02:49:04,573 INFO L130 BoogieDeclarations]: Found specification of procedure flexcop_device_initialize [2020-09-25 02:49:04,573 INFO L130 BoogieDeclarations]: Found specification of procedure flexcop_device_exit [2020-09-25 02:49:04,574 INFO L130 BoogieDeclarations]: Found specification of procedure flexcop_sram_set_dest [2020-09-25 02:49:04,574 INFO L130 BoogieDeclarations]: Found specification of procedure flexcop_wan_set_speed [2020-09-25 02:49:04,574 INFO L130 BoogieDeclarations]: Found specification of procedure flexcop_sram_ctrl [2020-09-25 02:49:04,574 INFO L130 BoogieDeclarations]: Found specification of procedure flexcop_usb_readwrite_dw [2020-09-25 02:49:04,574 INFO L130 BoogieDeclarations]: Found specification of procedure flexcop_usb_v8_memory_req [2020-09-25 02:49:04,574 INFO L130 BoogieDeclarations]: Found specification of procedure flexcop_usb_memory_req [2020-09-25 02:49:04,574 INFO L130 BoogieDeclarations]: Found specification of procedure flexcop_usb_get_mac_addr [2020-09-25 02:49:04,575 INFO L130 BoogieDeclarations]: Found specification of procedure flexcop_usb_i2c_req [2020-09-25 02:49:04,575 INFO L130 BoogieDeclarations]: Found specification of procedure flexcop_usb_read_ibi_reg [2020-09-25 02:49:04,575 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-25 02:49:04,575 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-25 02:49:04,575 INFO L130 BoogieDeclarations]: Found specification of procedure flexcop_usb_write_ibi_reg [2020-09-25 02:49:04,575 INFO L130 BoogieDeclarations]: Found specification of procedure flexcop_usb_i2c_request [2020-09-25 02:49:04,575 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy [2020-09-25 02:49:04,576 INFO L130 BoogieDeclarations]: Found specification of procedure flexcop_usb_process_frame [2020-09-25 02:49:04,576 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2020-09-25 02:49:04,576 INFO L130 BoogieDeclarations]: Found specification of procedure flexcop_usb_urb_complete [2020-09-25 02:49:04,576 INFO L130 BoogieDeclarations]: Found specification of procedure flexcop_usb_stream_control [2020-09-25 02:49:04,576 INFO L130 BoogieDeclarations]: Found specification of procedure flexcop_usb_transfer_exit [2020-09-25 02:49:04,576 INFO L130 BoogieDeclarations]: Found specification of procedure flexcop_usb_transfer_init [2020-09-25 02:49:04,576 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-25 02:49:04,577 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2020-09-25 02:49:04,577 INFO L130 BoogieDeclarations]: Found specification of procedure flexcop_usb_init [2020-09-25 02:49:04,577 INFO L130 BoogieDeclarations]: Found specification of procedure flexcop_usb_exit [2020-09-25 02:49:04,577 INFO L130 BoogieDeclarations]: Found specification of procedure flexcop_usb_probe [2020-09-25 02:49:04,577 INFO L130 BoogieDeclarations]: Found specification of procedure flexcop_usb_disconnect [2020-09-25 02:49:04,577 INFO L130 BoogieDeclarations]: Found specification of procedure flexcop_usb_driver_init [2020-09-25 02:49:04,577 INFO L130 BoogieDeclarations]: Found specification of procedure flexcop_usb_driver_exit [2020-09-25 02:49:04,578 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize [2020-09-25 02:49:04,578 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2020-09-25 02:49:04,578 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 02:49:04,578 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2020-09-25 02:49:04,578 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_trap [2020-09-25 02:49:04,578 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_interruptible_cred_guard_mutex_of_signal_struct [2020-09-25 02:49:04,578 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_killable_cred_guard_mutex_of_signal_struct [2020-09-25 02:49:04,578 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_trylock_cred_guard_mutex_of_signal_struct [2020-09-25 02:49:04,579 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_dec_and_mutex_lock_cred_guard_mutex_of_signal_struct [2020-09-25 02:49:04,579 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_is_locked_cred_guard_mutex_of_signal_struct [2020-09-25 02:49:04,579 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_interruptible_lock [2020-09-25 02:49:04,579 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_killable_lock [2020-09-25 02:49:04,579 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_trylock_lock [2020-09-25 02:49:04,579 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_dec_and_mutex_lock_lock [2020-09-25 02:49:04,580 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_is_locked_lock [2020-09-25 02:49:04,580 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_interruptible_mutex_of_device [2020-09-25 02:49:04,580 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_killable_mutex_of_device [2020-09-25 02:49:04,580 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_dec_and_mutex_lock_mutex_of_device [2020-09-25 02:49:04,580 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_is_locked_mutex_of_device [2020-09-25 02:49:04,580 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_bool [2020-09-25 02:49:04,580 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-25 02:49:04,581 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2020-09-25 02:49:04,581 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-25 02:49:04,581 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-25 02:49:04,581 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2020-09-25 02:49:04,581 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 02:49:04,581 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-25 02:49:04,581 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2020-09-25 02:49:04,582 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 02:49:04,582 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2020-09-25 02:49:04,582 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2020-09-25 02:49:04,582 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2020-09-25 02:49:04,582 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2020-09-25 02:49:09,183 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 02:49:09,183 INFO L295 CfgBuilder]: Removed 0 assume(true) statements. [2020-09-25 02:49:09,196 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 02:49:09 BoogieIcfgContainer [2020-09-25 02:49:09,197 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 02:49:09,198 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 02:49:09,198 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 02:49:09,202 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 02:49:09,203 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 02:49:00" (1/3) ... [2020-09-25 02:49:09,204 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@74dcd785 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 02:49:09, skipping insertion in model container [2020-09-25 02:49:09,204 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:49:03" (2/3) ... [2020-09-25 02:49:09,204 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@74dcd785 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 02:49:09, skipping insertion in model container [2020-09-25 02:49:09,204 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 02:49:09" (3/3) ... [2020-09-25 02:49:09,207 INFO L109 eAbstractionObserver]: Analyzing ICFG 32_7a_cilled_linux-3.8-rc1-drivers--media--usb--b2c2--b2c2-flexcop-usb.ko-main.cil.out.i [2020-09-25 02:49:09,221 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 02:49:09,233 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 02:49:09,257 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 02:49:09,296 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 02:49:09,296 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 02:49:09,296 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 02:49:09,297 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 02:49:09,297 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 02:49:09,297 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 02:49:09,297 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 02:49:09,297 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 02:49:09,349 INFO L276 IsEmpty]: Start isEmpty. Operand 2184 states. [2020-09-25 02:49:09,367 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 193 [2020-09-25 02:49:09,368 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 02:49:09,369 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] [2020-09-25 02:49:09,370 INFO L427 AbstractCegarLoop]: === Iteration 1 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 02:49:09,378 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 02:49:09,379 INFO L82 PathProgramCache]: Analyzing trace with hash 2037642771, now seen corresponding path program 1 times [2020-09-25 02:49:09,390 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 02:49:09,391 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1503982694] [2020-09-25 02:49:09,391 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 02:49:10,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:49:10,485 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:49:11,426 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:49:12,604 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:49:12,604 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 211 [2020-09-25 02:49:12,604 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 02:49:12,605 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2407 [2020-09-25 02:49:12,608 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:49:12,608 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 02:49:12,608 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 169 [2020-09-25 02:49:12,608 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-09-25 02:49:12,609 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-09-25 02:49:13,629 WARN L193 SmtUtils]: Spent 594.00 ms on a formula simplification that was a NOOP. DAG size: 316 [2020-09-25 02:49:13,632 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 02:49:13,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:49:13,735 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:49:14,192 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:49:14,193 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 153 [2020-09-25 02:49:14,193 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:49:14,193 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 537 [2020-09-25 02:49:14,194 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:49:14,194 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 02:49:14,195 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:49:14,195 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 02:49:14,195 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 02:49:14,460 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2020-09-25 02:49:14,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:49:14,498 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:49:14,603 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:49:14,604 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 02:49:14,604 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:49:14,605 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 140 [2020-09-25 02:49:14,605 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:49:14,605 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 02:49:14,606 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:49:14,606 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 02:49:14,607 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 02:49:14,690 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2020-09-25 02:49:14,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:49:14,743 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:49:14,855 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:49:14,856 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-09-25 02:49:14,856 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:49:14,856 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 157 [2020-09-25 02:49:14,856 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:49:14,857 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 02:49:14,857 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 18 [2020-09-25 02:49:14,857 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 02:49:14,857 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:49:14,904 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 02:49:14,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:49:14,940 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:49:15,057 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:49:15,057 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-09-25 02:49:15,057 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:49:15,057 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 148 [2020-09-25 02:49:15,058 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:49:15,058 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 02:49:15,058 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:49:15,058 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 02:49:15,058 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:49:15,106 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-25 02:49:15,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:49:15,139 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:49:15,206 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:49:15,206 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 02:49:15,206 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:49:15,207 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 95 [2020-09-25 02:49:15,207 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:49:15,207 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 02:49:15,207 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:49:15,208 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 02:49:15,208 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:49:15,305 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 02:49:15,306 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1503982694] [2020-09-25 02:49:15,308 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 02:49:15,309 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-09-25 02:49:15,310 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1133475169] [2020-09-25 02:49:15,317 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-25 02:49:15,318 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 02:49:15,336 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-25 02:49:15,338 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-09-25 02:49:15,341 INFO L87 Difference]: Start difference. First operand 2184 states. Second operand 6 states. [2020-09-25 02:49:16,983 WARN L193 SmtUtils]: Spent 782.00 ms on a formula simplification that was a NOOP. DAG size: 318 [2020-09-25 02:49:27,184 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 02:49:27,185 INFO L93 Difference]: Finished difference Result 1878 states and 2091 transitions. [2020-09-25 02:49:27,186 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-09-25 02:49:27,187 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 192 [2020-09-25 02:49:27,189 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 02:49:27,222 INFO L225 Difference]: With dead ends: 1878 [2020-09-25 02:49:27,223 INFO L226 Difference]: Without dead ends: 1838 [2020-09-25 02:49:27,230 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 [2020-09-25 02:49:27,258 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1838 states. [2020-09-25 02:49:27,516 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1838 to 1541. [2020-09-25 02:49:27,518 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1541 states. [2020-09-25 02:49:27,527 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1541 states to 1541 states and 1676 transitions. [2020-09-25 02:49:27,530 INFO L78 Accepts]: Start accepts. Automaton has 1541 states and 1676 transitions. Word has length 192 [2020-09-25 02:49:27,531 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 02:49:27,532 INFO L479 AbstractCegarLoop]: Abstraction has 1541 states and 1676 transitions. [2020-09-25 02:49:27,532 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-25 02:49:27,532 INFO L276 IsEmpty]: Start isEmpty. Operand 1541 states and 1676 transitions. [2020-09-25 02:49:27,538 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 220 [2020-09-25 02:49:27,538 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 02:49:27,538 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] [2020-09-25 02:49:27,539 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 02:49:27,539 INFO L427 AbstractCegarLoop]: === Iteration 2 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 02:49:27,539 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 02:49:27,540 INFO L82 PathProgramCache]: Analyzing trace with hash 526616234, now seen corresponding path program 1 times [2020-09-25 02:49:27,540 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 02:49:27,541 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1127839261] [2020-09-25 02:49:27,541 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 02:49:27,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:49:27,895 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:49:28,789 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:49:28,789 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 238 [2020-09-25 02:49:28,789 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:49:28,789 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1059 [2020-09-25 02:49:28,790 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:49:28,790 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 02:49:28,790 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 162 [2020-09-25 02:49:28,790 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 72 [2020-09-25 02:49:28,791 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:49:29,936 WARN L193 SmtUtils]: Spent 631.00 ms on a formula simplification that was a NOOP. DAG size: 316 [2020-09-25 02:49:29,937 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 02:49:29,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:49:30,027 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:49:30,425 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:49:30,426 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 153 [2020-09-25 02:49:30,429 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:49:30,429 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 471 [2020-09-25 02:49:30,429 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:49:30,430 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 02:49:30,430 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:49:30,430 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 02:49:30,430 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:49:30,656 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2020-09-25 02:49:30,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:49:30,702 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:49:30,879 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:49:30,880 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 02:49:30,880 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:49:30,880 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 213 [2020-09-25 02:49:30,881 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:49:30,884 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 02:49:30,885 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:49:30,885 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-09-25 02:49:30,885 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-09-25 02:49:30,978 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 177 [2020-09-25 02:49:31,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:49:31,042 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:49:31,217 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:49:31,218 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-09-25 02:49:31,218 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:49:31,218 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 215 [2020-09-25 02:49:31,218 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:49:31,218 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 02:49:31,219 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:49:31,219 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 37 [2020-09-25 02:49:31,219 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:49:31,277 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-25 02:49:31,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:49:31,310 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:49:31,407 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:49:31,407 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 31 [2020-09-25 02:49:31,408 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:49:31,408 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 127 [2020-09-25 02:49:31,408 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:49:31,408 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 02:49:31,409 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:49:31,409 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 02:49:31,409 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:49:31,475 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-25 02:49:31,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:49:31,504 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:49:31,570 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:49:31,571 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-09-25 02:49:31,571 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:49:31,571 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 93 [2020-09-25 02:49:31,571 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:49:31,572 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 02:49:31,572 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:49:31,576 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 02:49:31,576 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-09-25 02:49:31,700 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 02:49:31,700 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1127839261] [2020-09-25 02:49:31,701 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 02:49:31,701 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-09-25 02:49:31,701 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [923458161] [2020-09-25 02:49:31,705 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-25 02:49:31,705 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 02:49:31,706 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-25 02:49:31,706 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-09-25 02:49:31,706 INFO L87 Difference]: Start difference. First operand 1541 states and 1676 transitions. Second operand 6 states. [2020-09-25 02:49:33,249 WARN L193 SmtUtils]: Spent 654.00 ms on a formula simplification that was a NOOP. DAG size: 318 [2020-09-25 02:49:36,895 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 02:49:36,896 INFO L93 Difference]: Finished difference Result 1839 states and 2039 transitions. [2020-09-25 02:49:36,896 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-09-25 02:49:36,897 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 219 [2020-09-25 02:49:36,899 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 02:49:36,908 INFO L225 Difference]: With dead ends: 1839 [2020-09-25 02:49:36,909 INFO L226 Difference]: Without dead ends: 1836 [2020-09-25 02:49:36,912 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 [2020-09-25 02:49:36,915 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1836 states. [2020-09-25 02:49:37,106 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1836 to 1540. [2020-09-25 02:49:37,107 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1540 states. [2020-09-25 02:49:37,115 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1540 states to 1540 states and 1674 transitions. [2020-09-25 02:49:37,116 INFO L78 Accepts]: Start accepts. Automaton has 1540 states and 1674 transitions. Word has length 219 [2020-09-25 02:49:37,117 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 02:49:37,118 INFO L479 AbstractCegarLoop]: Abstraction has 1540 states and 1674 transitions. [2020-09-25 02:49:37,118 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-25 02:49:37,118 INFO L276 IsEmpty]: Start isEmpty. Operand 1540 states and 1674 transitions. [2020-09-25 02:49:37,124 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 221 [2020-09-25 02:49:37,124 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 02:49:37,125 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] [2020-09-25 02:49:37,125 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 02:49:37,126 INFO L427 AbstractCegarLoop]: === Iteration 3 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 02:49:37,126 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 02:49:37,126 INFO L82 PathProgramCache]: Analyzing trace with hash -855644402, now seen corresponding path program 1 times [2020-09-25 02:49:37,126 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 02:49:37,127 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [557165620] [2020-09-25 02:49:37,127 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 02:49:37,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:49:37,480 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:49:38,283 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:49:38,284 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 239 [2020-09-25 02:49:38,284 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:49:38,284 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 987 [2020-09-25 02:49:38,284 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:49:38,284 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 02:49:38,285 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 163 [2020-09-25 02:49:38,285 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 72 [2020-09-25 02:49:38,285 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:49:39,364 WARN L193 SmtUtils]: Spent 635.00 ms on a formula simplification that was a NOOP. DAG size: 316 [2020-09-25 02:49:39,365 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 02:49:39,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:49:39,439 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:49:39,773 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:49:39,773 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 153 [2020-09-25 02:49:39,773 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:49:39,774 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 394 [2020-09-25 02:49:39,774 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:49:39,774 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 02:49:39,774 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:49:39,774 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 02:49:39,775 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:49:39,951 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2020-09-25 02:49:39,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:49:39,983 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:49:40,115 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:49:40,116 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 02:49:40,116 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:49:40,116 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 156 [2020-09-25 02:49:40,116 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:49:40,117 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 02:49:40,117 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:49:40,117 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-25 02:49:40,117 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:49:40,193 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 177 [2020-09-25 02:49:40,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:49:40,246 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:49:40,396 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:49:40,397 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-09-25 02:49:40,397 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:49:40,397 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 186 [2020-09-25 02:49:40,397 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:49:40,398 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 02:49:40,398 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:49:40,398 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 37 [2020-09-25 02:49:40,398 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:49:40,451 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-25 02:49:40,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:49:40,484 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:49:40,547 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:49:40,547 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 31 [2020-09-25 02:49:40,547 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:49:40,548 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 92 [2020-09-25 02:49:40,548 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:49:40,548 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 02:49:40,548 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:49:40,548 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 02:49:40,549 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:49:40,618 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-25 02:49:40,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:49:40,644 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:49:40,707 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:49:40,708 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-09-25 02:49:40,708 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:49:40,708 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 87 [2020-09-25 02:49:40,708 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:49:40,708 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 02:49:40,709 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:49:40,709 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 02:49:40,709 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:49:40,819 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 02:49:40,819 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [557165620] [2020-09-25 02:49:40,820 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 02:49:40,820 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-09-25 02:49:40,820 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1195282215] [2020-09-25 02:49:40,821 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-25 02:49:40,821 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 02:49:40,821 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-25 02:49:40,822 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-09-25 02:49:40,822 INFO L87 Difference]: Start difference. First operand 1540 states and 1674 transitions. Second operand 6 states. [2020-09-25 02:49:42,365 WARN L193 SmtUtils]: Spent 716.00 ms on a formula simplification that was a NOOP. DAG size: 318 [2020-09-25 02:49:46,181 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 02:49:46,182 INFO L93 Difference]: Finished difference Result 1838 states and 2037 transitions. [2020-09-25 02:49:46,182 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-09-25 02:49:46,183 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 220 [2020-09-25 02:49:46,184 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 02:49:46,194 INFO L225 Difference]: With dead ends: 1838 [2020-09-25 02:49:46,194 INFO L226 Difference]: Without dead ends: 1835 [2020-09-25 02:49:46,198 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=42, Invalid=68, Unknown=0, NotChecked=0, Total=110 [2020-09-25 02:49:46,201 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1835 states. [2020-09-25 02:49:46,454 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1835 to 1539. [2020-09-25 02:49:46,454 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1539 states. [2020-09-25 02:49:46,463 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1539 states to 1539 states and 1672 transitions. [2020-09-25 02:49:46,464 INFO L78 Accepts]: Start accepts. Automaton has 1539 states and 1672 transitions. Word has length 220 [2020-09-25 02:49:46,464 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 02:49:46,464 INFO L479 AbstractCegarLoop]: Abstraction has 1539 states and 1672 transitions. [2020-09-25 02:49:46,464 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-25 02:49:46,465 INFO L276 IsEmpty]: Start isEmpty. Operand 1539 states and 1672 transitions. [2020-09-25 02:49:46,468 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 222 [2020-09-25 02:49:46,468 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 02:49:46,468 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] [2020-09-25 02:49:46,469 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-25 02:49:46,469 INFO L427 AbstractCegarLoop]: === Iteration 4 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 02:49:46,469 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 02:49:46,469 INFO L82 PathProgramCache]: Analyzing trace with hash -756046291, now seen corresponding path program 1 times [2020-09-25 02:49:46,469 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 02:49:46,470 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [135481834] [2020-09-25 02:49:46,470 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 02:49:46,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:49:46,771 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:49:47,533 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:49:47,533 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 240 [2020-09-25 02:49:47,533 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:49:47,534 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 911 [2020-09-25 02:49:47,534 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:49:47,534 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 02:49:47,534 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 164 [2020-09-25 02:49:47,534 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 72 [2020-09-25 02:49:47,535 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:49:48,579 WARN L193 SmtUtils]: Spent 624.00 ms on a formula simplification that was a NOOP. DAG size: 316 [2020-09-25 02:49:48,580 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 02:49:48,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:49:48,649 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:49:48,965 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:49:48,965 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 153 [2020-09-25 02:49:48,965 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:49:48,966 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 370 [2020-09-25 02:49:48,966 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:49:48,966 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 02:49:48,966 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:49:48,966 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 02:49:48,967 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:49:49,145 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2020-09-25 02:49:49,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:49:49,178 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:49:49,293 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:49:49,293 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 02:49:49,294 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:49:49,294 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 140 [2020-09-25 02:49:49,294 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:49:49,294 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 02:49:49,294 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:49:49,295 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 02:49:49,295 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:49:49,370 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 177 [2020-09-25 02:49:49,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:49:49,438 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:49:49,610 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:49:49,611 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-09-25 02:49:49,611 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:49:49,611 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 212 [2020-09-25 02:49:49,611 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:49:49,612 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 02:49:49,612 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:49:49,612 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 37 [2020-09-25 02:49:49,612 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0