/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 false -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 15:36:15,824 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-24 15:36:15,829 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-24 15:36:15,872 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-24 15:36:15,872 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-24 15:36:15,884 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-24 15:36:15,888 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-24 15:36:15,890 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-24 15:36:15,892 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-24 15:36:15,894 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-24 15:36:15,895 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-24 15:36:15,898 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-24 15:36:15,898 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-24 15:36:15,902 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-24 15:36:15,905 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-24 15:36:15,907 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-24 15:36:15,909 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-24 15:36:15,911 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-24 15:36:15,913 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-24 15:36:15,923 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-24 15:36:15,926 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-24 15:36:15,927 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-24 15:36:15,928 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-24 15:36:15,929 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-24 15:36:15,933 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-24 15:36:15,933 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-24 15:36:15,933 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-24 15:36:15,937 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-24 15:36:15,937 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-24 15:36:15,938 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-24 15:36:15,938 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-24 15:36:15,939 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-24 15:36:15,940 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-24 15:36:15,941 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-24 15:36:15,943 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-24 15:36:15,943 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-24 15:36:15,944 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-24 15:36:15,944 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-24 15:36:15,945 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-24 15:36:15,946 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-24 15:36:15,947 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-24 15:36:15,948 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 15:36:15,995 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-24 15:36:15,995 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-24 15:36:15,998 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-24 15:36:15,998 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-24 15:36:15,998 INFO L138 SettingsManager]: * Use SBE=true [2020-09-24 15:36:15,999 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-24 15:36:15,999 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-24 15:36:15,999 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-24 15:36:16,000 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-24 15:36:16,000 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-24 15:36:16,001 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-24 15:36:16,001 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-24 15:36:16,002 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-24 15:36:16,002 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-24 15:36:16,002 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-24 15:36:16,002 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-24 15:36:16,003 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-24 15:36:16,003 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-24 15:36:16,003 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-24 15:36:16,003 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-24 15:36:16,003 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-24 15:36:16,004 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-24 15:36:16,004 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-24 15:36:16,004 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-24 15:36:16,004 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-24 15:36:16,004 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-24 15:36:16,005 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-09-24 15:36:16,005 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 -> false [2020-09-24 15:36:16,494 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-24 15:36:16,510 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-24 15:36:16,514 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-24 15:36:16,516 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-24 15:36:16,516 INFO L275 PluginConnector]: CDTParser initialized [2020-09-24 15:36:16,518 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--media--usb--b2c2--b2c2-flexcop-usb.ko-main.cil.out.i [2020-09-24 15:36:16,595 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/a3cf1c0a1/0fc309c18c7f4721b12f36003a36ede8/FLAGe67e3489d [2020-09-24 15:36:17,517 INFO L306 CDTParser]: Found 1 translation units. [2020-09-24 15:36:17,518 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--media--usb--b2c2--b2c2-flexcop-usb.ko-main.cil.out.i [2020-09-24 15:36:17,564 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/a3cf1c0a1/0fc309c18c7f4721b12f36003a36ede8/FLAGe67e3489d [2020-09-24 15:36:18,009 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/a3cf1c0a1/0fc309c18c7f4721b12f36003a36ede8 [2020-09-24 15:36:18,022 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-24 15:36:18,028 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-24 15:36:18,029 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-24 15:36:18,029 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-24 15:36:18,033 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-24 15:36:18,035 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 03:36:18" (1/1) ... [2020-09-24 15:36:18,039 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@57916dbb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 03:36:18, skipping insertion in model container [2020-09-24 15:36:18,040 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 03:36:18" (1/1) ... [2020-09-24 15:36:18,049 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-24 15:36:18,208 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-24 15:36:20,129 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 15:36:20,165 INFO L203 MainTranslator]: Completed pre-run [2020-09-24 15:36:20,693 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 15:36:20,806 INFO L208 MainTranslator]: Completed translation [2020-09-24 15:36:20,807 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 03:36:20 WrapperNode [2020-09-24 15:36:20,807 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-24 15:36:20,808 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-24 15:36:20,808 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-24 15:36:20,809 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-24 15:36:20,834 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 03:36:20" (1/1) ... [2020-09-24 15:36:20,835 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 03:36:20" (1/1) ... [2020-09-24 15:36:20,891 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 03:36:20" (1/1) ... [2020-09-24 15:36:20,894 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 03:36:20" (1/1) ... [2020-09-24 15:36:21,304 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 03:36:20" (1/1) ... [2020-09-24 15:36:21,335 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 03:36:20" (1/1) ... [2020-09-24 15:36:21,362 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 03:36:20" (1/1) ... [2020-09-24 15:36:21,390 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-24 15:36:21,391 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-24 15:36:21,391 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-24 15:36:21,391 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-24 15:36:21,392 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 03:36:20" (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 15:36:21,508 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-24 15:36:21,508 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-24 15:36:21,508 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~int~X~$Pointer$~X~~gfp_t~0~X~$Pointer$~TO~$Pointer$ [2020-09-24 15:36:21,508 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 15:36:21,509 INFO L138 BoogieDeclarations]: Found implementation of procedure arch_local_save_flags [2020-09-24 15:36:21,509 INFO L138 BoogieDeclarations]: Found implementation of procedure arch_irqs_disabled_flags [2020-09-24 15:36:21,510 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_get_intfdata [2020-09-24 15:36:21,510 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_set_intfdata [2020-09-24 15:36:21,511 INFO L138 BoogieDeclarations]: Found implementation of procedure interface_to_usbdev [2020-09-24 15:36:21,511 INFO L138 BoogieDeclarations]: Found implementation of procedure __create_pipe [2020-09-24 15:36:21,511 INFO L138 BoogieDeclarations]: Found implementation of procedure is_device_dma_capable [2020-09-24 15:36:21,511 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2020-09-24 15:36:21,513 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_alloc_coherent_mask [2020-09-24 15:36:21,513 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_alloc_coherent_gfp_flags [2020-09-24 15:36:21,513 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_alloc_attrs [2020-09-24 15:36:21,513 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_free_attrs [2020-09-24 15:36:21,514 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_alloc_consistent [2020-09-24 15:36:21,518 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_free_consistent [2020-09-24 15:36:21,518 INFO L138 BoogieDeclarations]: Found implementation of procedure flexcop_usb_readwrite_dw [2020-09-24 15:36:21,518 INFO L138 BoogieDeclarations]: Found implementation of procedure flexcop_usb_v8_memory_req [2020-09-24 15:36:21,518 INFO L138 BoogieDeclarations]: Found implementation of procedure flexcop_usb_memory_req [2020-09-24 15:36:21,518 INFO L138 BoogieDeclarations]: Found implementation of procedure flexcop_usb_get_mac_addr [2020-09-24 15:36:21,518 INFO L138 BoogieDeclarations]: Found implementation of procedure flexcop_usb_i2c_req [2020-09-24 15:36:21,519 INFO L138 BoogieDeclarations]: Found implementation of procedure flexcop_usb_read_ibi_reg [2020-09-24 15:36:21,519 INFO L138 BoogieDeclarations]: Found implementation of procedure flexcop_usb_write_ibi_reg [2020-09-24 15:36:21,519 INFO L138 BoogieDeclarations]: Found implementation of procedure flexcop_usb_i2c_request [2020-09-24 15:36:21,519 INFO L138 BoogieDeclarations]: Found implementation of procedure flexcop_usb_process_frame [2020-09-24 15:36:21,519 INFO L138 BoogieDeclarations]: Found implementation of procedure flexcop_usb_urb_complete [2020-09-24 15:36:21,519 INFO L138 BoogieDeclarations]: Found implementation of procedure flexcop_usb_stream_control [2020-09-24 15:36:21,520 INFO L138 BoogieDeclarations]: Found implementation of procedure flexcop_usb_transfer_exit [2020-09-24 15:36:21,520 INFO L138 BoogieDeclarations]: Found implementation of procedure flexcop_usb_transfer_init [2020-09-24 15:36:21,520 INFO L138 BoogieDeclarations]: Found implementation of procedure flexcop_usb_init [2020-09-24 15:36:21,520 INFO L138 BoogieDeclarations]: Found implementation of procedure flexcop_usb_exit [2020-09-24 15:36:21,520 INFO L138 BoogieDeclarations]: Found implementation of procedure flexcop_usb_probe [2020-09-24 15:36:21,521 INFO L138 BoogieDeclarations]: Found implementation of procedure flexcop_usb_disconnect [2020-09-24 15:36:21,521 INFO L138 BoogieDeclarations]: Found implementation of procedure flexcop_usb_driver_init [2020-09-24 15:36:21,521 INFO L138 BoogieDeclarations]: Found implementation of procedure flexcop_usb_driver_exit [2020-09-24 15:36:21,521 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-24 15:36:21,522 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_1 [2020-09-24 15:36:21,522 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_2 [2020-09-24 15:36:21,522 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_3 [2020-09-24 15:36:21,522 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_trylock_4 [2020-09-24 15:36:21,522 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_5 [2020-09-24 15:36:21,522 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_6 [2020-09-24 15:36:21,523 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_7 [2020-09-24 15:36:21,523 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_register_driver_8 [2020-09-24 15:36:21,523 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_deregister_9 [2020-09-24 15:36:21,523 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2020-09-24 15:36:21,523 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2020-09-24 15:36:21,523 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_trap [2020-09-24 15:36:21,523 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_interruptible_cred_guard_mutex_of_signal_struct [2020-09-24 15:36:21,524 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_killable_cred_guard_mutex_of_signal_struct [2020-09-24 15:36:21,524 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_cred_guard_mutex_of_signal_struct [2020-09-24 15:36:21,524 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_trylock_cred_guard_mutex_of_signal_struct [2020-09-24 15:36:21,524 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_dec_and_mutex_lock_cred_guard_mutex_of_signal_struct [2020-09-24 15:36:21,524 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_is_locked_cred_guard_mutex_of_signal_struct [2020-09-24 15:36:21,524 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_cred_guard_mutex_of_signal_struct [2020-09-24 15:36:21,525 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_interruptible_lock [2020-09-24 15:36:21,525 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_killable_lock [2020-09-24 15:36:21,526 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_lock [2020-09-24 15:36:21,527 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_trylock_lock [2020-09-24 15:36:21,527 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_dec_and_mutex_lock_lock [2020-09-24 15:36:21,527 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_is_locked_lock [2020-09-24 15:36:21,527 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_lock [2020-09-24 15:36:21,527 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_interruptible_mutex_of_device [2020-09-24 15:36:21,527 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_killable_mutex_of_device [2020-09-24 15:36:21,528 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_mutex_of_device [2020-09-24 15:36:21,528 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_trylock_mutex_of_device [2020-09-24 15:36:21,528 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_dec_and_mutex_lock_mutex_of_device [2020-09-24 15:36:21,528 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_is_locked_mutex_of_device [2020-09-24 15:36:21,528 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_mutex_of_device [2020-09-24 15:36:21,528 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize [2020-09-24 15:36:21,529 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2020-09-24 15:36:21,529 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_dma_alloc_coherent [2020-09-24 15:36:21,530 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_dma_free_coherent [2020-09-24 15:36:21,530 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2020-09-24 15:36:21,531 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_get_drvdata [2020-09-24 15:36:21,532 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_set_drvdata [2020-09-24 15:36:21,532 INFO L138 BoogieDeclarations]: Found implementation of procedure flexcop_device_exit [2020-09-24 15:36:21,532 INFO L138 BoogieDeclarations]: Found implementation of procedure flexcop_device_initialize [2020-09-24 15:36:21,533 INFO L138 BoogieDeclarations]: Found implementation of procedure flexcop_device_kfree [2020-09-24 15:36:21,533 INFO L138 BoogieDeclarations]: Found implementation of procedure flexcop_device_kmalloc [2020-09-24 15:36:21,534 INFO L138 BoogieDeclarations]: Found implementation of procedure flexcop_pass_dmx_packets [2020-09-24 15:36:21,534 INFO L138 BoogieDeclarations]: Found implementation of procedure flexcop_sram_ctrl [2020-09-24 15:36:21,534 INFO L138 BoogieDeclarations]: Found implementation of procedure flexcop_sram_set_dest [2020-09-24 15:36:21,534 INFO L138 BoogieDeclarations]: Found implementation of procedure flexcop_wan_set_speed [2020-09-24 15:36:21,534 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock [2020-09-24 15:36:21,535 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_trylock [2020-09-24 15:36:21,535 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2020-09-24 15:36:21,536 INFO L138 BoogieDeclarations]: Found implementation of procedure printk [2020-09-24 15:36:21,536 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_alloc_urb [2020-09-24 15:36:21,536 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_control_msg [2020-09-24 15:36:21,536 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_deregister [2020-09-24 15:36:21,536 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_free_urb [2020-09-24 15:36:21,536 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_kill_urb [2020-09-24 15:36:21,537 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_register_driver [2020-09-24 15:36:21,537 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_set_interface [2020-09-24 15:36:21,537 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_submit_urb [2020-09-24 15:36:21,538 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2020-09-24 15:36:21,538 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2020-09-24 15:36:21,538 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2020-09-24 15:36:21,538 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2020-09-24 15:36:21,539 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-24 15:36:21,539 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2020-09-24 15:36:21,539 INFO L130 BoogieDeclarations]: Found specification of procedure printk [2020-09-24 15:36:21,539 INFO L130 BoogieDeclarations]: Found specification of procedure memset [2020-09-24 15:36:21,539 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2020-09-24 15:36:21,539 INFO L130 BoogieDeclarations]: Found specification of procedure arch_local_save_flags [2020-09-24 15:36:21,540 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-24 15:36:21,540 INFO L130 BoogieDeclarations]: Found specification of procedure arch_irqs_disabled_flags [2020-09-24 15:36:21,540 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_trylock [2020-09-24 15:36:21,540 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_trylock_4 [2020-09-24 15:36:21,540 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2020-09-24 15:36:21,540 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_2 [2020-09-24 15:36:21,541 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_5 [2020-09-24 15:36:21,541 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_7 [2020-09-24 15:36:21,541 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock [2020-09-24 15:36:21,542 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_1 [2020-09-24 15:36:21,542 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_3 [2020-09-24 15:36:21,542 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_6 [2020-09-24 15:36:21,542 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_cred_guard_mutex_of_signal_struct [2020-09-24 15:36:21,543 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_cred_guard_mutex_of_signal_struct [2020-09-24 15:36:21,543 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_lock [2020-09-24 15:36:21,543 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_lock [2020-09-24 15:36:21,543 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_mutex_of_device [2020-09-24 15:36:21,544 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_trylock_mutex_of_device [2020-09-24 15:36:21,544 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_mutex_of_device [2020-09-24 15:36:21,544 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-24 15:36:21,545 INFO L130 BoogieDeclarations]: Found specification of procedure dev_get_drvdata [2020-09-24 15:36:21,545 INFO L130 BoogieDeclarations]: Found specification of procedure dev_set_drvdata [2020-09-24 15:36:21,545 INFO L130 BoogieDeclarations]: Found specification of procedure usb_get_intfdata [2020-09-24 15:36:21,545 INFO L130 BoogieDeclarations]: Found specification of procedure usb_set_intfdata [2020-09-24 15:36:21,545 INFO L130 BoogieDeclarations]: Found specification of procedure interface_to_usbdev [2020-09-24 15:36:21,546 INFO L130 BoogieDeclarations]: Found specification of procedure usb_register_driver [2020-09-24 15:36:21,547 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_register_driver_8 [2020-09-24 15:36:21,550 INFO L130 BoogieDeclarations]: Found specification of procedure usb_deregister [2020-09-24 15:36:21,551 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_deregister_9 [2020-09-24 15:36:21,551 INFO L130 BoogieDeclarations]: Found specification of procedure usb_alloc_urb [2020-09-24 15:36:21,551 INFO L130 BoogieDeclarations]: Found specification of procedure usb_free_urb [2020-09-24 15:36:21,552 INFO L130 BoogieDeclarations]: Found specification of procedure usb_submit_urb [2020-09-24 15:36:21,552 INFO L130 BoogieDeclarations]: Found specification of procedure usb_kill_urb [2020-09-24 15:36:21,552 INFO L130 BoogieDeclarations]: Found specification of procedure usb_control_msg [2020-09-24 15:36:21,552 INFO L130 BoogieDeclarations]: Found specification of procedure usb_set_interface [2020-09-24 15:36:21,552 INFO L130 BoogieDeclarations]: Found specification of procedure __create_pipe [2020-09-24 15:36:21,553 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-24 15:36:21,561 INFO L130 BoogieDeclarations]: Found specification of procedure is_device_dma_capable [2020-09-24 15:36:21,561 INFO L130 BoogieDeclarations]: Found specification of procedure debug_dma_alloc_coherent [2020-09-24 15:36:21,561 INFO L130 BoogieDeclarations]: Found specification of procedure debug_dma_free_coherent [2020-09-24 15:36:21,561 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2020-09-24 15:36:21,561 INFO L130 BoogieDeclarations]: Found specification of procedure dma_alloc_coherent_mask [2020-09-24 15:36:21,562 INFO L130 BoogieDeclarations]: Found specification of procedure dma_alloc_coherent_gfp_flags [2020-09-24 15:36:21,562 INFO L130 BoogieDeclarations]: Found specification of procedure dma_alloc_attrs [2020-09-24 15:36:21,562 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~int~X~$Pointer$~X~~gfp_t~0~X~$Pointer$~TO~$Pointer$ [2020-09-24 15:36:21,562 INFO L130 BoogieDeclarations]: Found specification of procedure dma_free_attrs [2020-09-24 15:36:21,562 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-24 15:36:21,562 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 15:36:21,562 INFO L130 BoogieDeclarations]: Found specification of procedure pci_alloc_consistent [2020-09-24 15:36:21,563 INFO L130 BoogieDeclarations]: Found specification of procedure pci_free_consistent [2020-09-24 15:36:21,563 INFO L130 BoogieDeclarations]: Found specification of procedure flexcop_pass_dmx_packets [2020-09-24 15:36:21,564 INFO L130 BoogieDeclarations]: Found specification of procedure flexcop_device_kmalloc [2020-09-24 15:36:21,564 INFO L130 BoogieDeclarations]: Found specification of procedure flexcop_device_kfree [2020-09-24 15:36:21,564 INFO L130 BoogieDeclarations]: Found specification of procedure flexcop_device_initialize [2020-09-24 15:36:21,564 INFO L130 BoogieDeclarations]: Found specification of procedure flexcop_device_exit [2020-09-24 15:36:21,564 INFO L130 BoogieDeclarations]: Found specification of procedure flexcop_sram_set_dest [2020-09-24 15:36:21,564 INFO L130 BoogieDeclarations]: Found specification of procedure flexcop_wan_set_speed [2020-09-24 15:36:21,564 INFO L130 BoogieDeclarations]: Found specification of procedure flexcop_sram_ctrl [2020-09-24 15:36:21,565 INFO L130 BoogieDeclarations]: Found specification of procedure flexcop_usb_readwrite_dw [2020-09-24 15:36:21,565 INFO L130 BoogieDeclarations]: Found specification of procedure flexcop_usb_v8_memory_req [2020-09-24 15:36:21,565 INFO L130 BoogieDeclarations]: Found specification of procedure flexcop_usb_memory_req [2020-09-24 15:36:21,565 INFO L130 BoogieDeclarations]: Found specification of procedure flexcop_usb_get_mac_addr [2020-09-24 15:36:21,565 INFO L130 BoogieDeclarations]: Found specification of procedure flexcop_usb_i2c_req [2020-09-24 15:36:21,565 INFO L130 BoogieDeclarations]: Found specification of procedure flexcop_usb_read_ibi_reg [2020-09-24 15:36:21,565 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-24 15:36:21,566 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-24 15:36:21,566 INFO L130 BoogieDeclarations]: Found specification of procedure flexcop_usb_write_ibi_reg [2020-09-24 15:36:21,566 INFO L130 BoogieDeclarations]: Found specification of procedure flexcop_usb_i2c_request [2020-09-24 15:36:21,566 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy [2020-09-24 15:36:21,566 INFO L130 BoogieDeclarations]: Found specification of procedure flexcop_usb_process_frame [2020-09-24 15:36:21,566 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2020-09-24 15:36:21,566 INFO L130 BoogieDeclarations]: Found specification of procedure flexcop_usb_urb_complete [2020-09-24 15:36:21,567 INFO L130 BoogieDeclarations]: Found specification of procedure flexcop_usb_stream_control [2020-09-24 15:36:21,567 INFO L130 BoogieDeclarations]: Found specification of procedure flexcop_usb_transfer_exit [2020-09-24 15:36:21,567 INFO L130 BoogieDeclarations]: Found specification of procedure flexcop_usb_transfer_init [2020-09-24 15:36:21,567 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-24 15:36:21,567 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2020-09-24 15:36:21,567 INFO L130 BoogieDeclarations]: Found specification of procedure flexcop_usb_init [2020-09-24 15:36:21,567 INFO L130 BoogieDeclarations]: Found specification of procedure flexcop_usb_exit [2020-09-24 15:36:21,568 INFO L130 BoogieDeclarations]: Found specification of procedure flexcop_usb_probe [2020-09-24 15:36:21,568 INFO L130 BoogieDeclarations]: Found specification of procedure flexcop_usb_disconnect [2020-09-24 15:36:21,568 INFO L130 BoogieDeclarations]: Found specification of procedure flexcop_usb_driver_init [2020-09-24 15:36:21,568 INFO L130 BoogieDeclarations]: Found specification of procedure flexcop_usb_driver_exit [2020-09-24 15:36:21,568 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize [2020-09-24 15:36:21,568 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2020-09-24 15:36:21,568 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-24 15:36:21,569 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2020-09-24 15:36:21,569 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_trap [2020-09-24 15:36:21,569 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_interruptible_cred_guard_mutex_of_signal_struct [2020-09-24 15:36:21,569 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_killable_cred_guard_mutex_of_signal_struct [2020-09-24 15:36:21,569 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_trylock_cred_guard_mutex_of_signal_struct [2020-09-24 15:36:21,569 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_dec_and_mutex_lock_cred_guard_mutex_of_signal_struct [2020-09-24 15:36:21,569 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_is_locked_cred_guard_mutex_of_signal_struct [2020-09-24 15:36:21,569 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_interruptible_lock [2020-09-24 15:36:21,570 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_killable_lock [2020-09-24 15:36:21,570 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_trylock_lock [2020-09-24 15:36:21,570 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_dec_and_mutex_lock_lock [2020-09-24 15:36:21,570 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_is_locked_lock [2020-09-24 15:36:21,570 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_interruptible_mutex_of_device [2020-09-24 15:36:21,570 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_killable_mutex_of_device [2020-09-24 15:36:21,570 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_dec_and_mutex_lock_mutex_of_device [2020-09-24 15:36:21,571 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_is_locked_mutex_of_device [2020-09-24 15:36:21,571 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_bool [2020-09-24 15:36:21,571 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-24 15:36:21,571 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2020-09-24 15:36:21,571 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-24 15:36:21,571 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-24 15:36:21,571 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2020-09-24 15:36:21,572 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-24 15:36:21,572 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-24 15:36:21,572 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2020-09-24 15:36:21,572 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-24 15:36:21,572 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2020-09-24 15:36:21,572 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2020-09-24 15:36:21,572 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2020-09-24 15:36:21,572 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2020-09-24 15:36:26,115 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-24 15:36:26,116 INFO L295 CfgBuilder]: Removed 0 assume(true) statements. [2020-09-24 15:36:26,139 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 03:36:26 BoogieIcfgContainer [2020-09-24 15:36:26,140 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-24 15:36:26,143 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-24 15:36:26,143 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-24 15:36:26,148 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-24 15:36:26,148 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.09 03:36:18" (1/3) ... [2020-09-24 15:36:26,150 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5f88807 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 03:36:26, skipping insertion in model container [2020-09-24 15:36:26,150 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 03:36:20" (2/3) ... [2020-09-24 15:36:26,151 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5f88807 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 03:36:26, skipping insertion in model container [2020-09-24 15:36:26,151 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 03:36:26" (3/3) ... [2020-09-24 15:36:26,155 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 15:36:26,173 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-24 15:36:26,192 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-24 15:36:26,224 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-24 15:36:26,273 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-24 15:36:26,273 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-24 15:36:26,273 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-24 15:36:26,273 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-24 15:36:26,274 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-24 15:36:26,274 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-24 15:36:26,274 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-24 15:36:26,274 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-24 15:36:26,362 INFO L276 IsEmpty]: Start isEmpty. Operand 2184 states. [2020-09-24 15:36:26,405 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 193 [2020-09-24 15:36:26,405 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 15:36:26,409 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 15:36:26,410 INFO L427 AbstractCegarLoop]: === Iteration 1 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 15:36:26,421 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 15:36:26,422 INFO L82 PathProgramCache]: Analyzing trace with hash 2037642771, now seen corresponding path program 1 times [2020-09-24 15:36:26,439 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 15:36:26,441 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1703659432] [2020-09-24 15:36:26,441 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 15:36:27,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:36:28,408 WARN L193 SmtUtils]: Spent 628.00 ms on a formula simplification that was a NOOP. DAG size: 316 [2020-09-24 15:36:28,418 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 15:36:28,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:36:28,761 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2020-09-24 15:36:28,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:36:28,828 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2020-09-24 15:36:28,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:36:28,901 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 15:36:28,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:36:28,968 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-24 15:36:28,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:36:29,145 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 15:36:29,146 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1703659432] [2020-09-24 15:36:29,149 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 15:36:29,154 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-09-24 15:36:29,155 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [768361478] [2020-09-24 15:36:29,164 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-24 15:36:29,164 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 15:36:29,182 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-24 15:36:29,183 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-09-24 15:36:29,186 INFO L87 Difference]: Start difference. First operand 2184 states. Second operand 6 states. [2020-09-24 15:36:31,034 WARN L193 SmtUtils]: Spent 698.00 ms on a formula simplification that was a NOOP. DAG size: 318 [2020-09-24 15:36:40,771 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 15:36:40,771 INFO L93 Difference]: Finished difference Result 2577 states and 2859 transitions. [2020-09-24 15:36:40,772 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-09-24 15:36:40,774 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 192 [2020-09-24 15:36:40,775 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 15:36:40,810 INFO L225 Difference]: With dead ends: 2577 [2020-09-24 15:36:40,811 INFO L226 Difference]: Without dead ends: 1838 [2020-09-24 15:36:40,821 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=36, Invalid=54, Unknown=0, NotChecked=0, Total=90 [2020-09-24 15:36:40,843 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1838 states. [2020-09-24 15:36:41,111 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1838 to 1541. [2020-09-24 15:36:41,113 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1541 states. [2020-09-24 15:36:41,126 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1541 states to 1541 states and 1674 transitions. [2020-09-24 15:36:41,129 INFO L78 Accepts]: Start accepts. Automaton has 1541 states and 1674 transitions. Word has length 192 [2020-09-24 15:36:41,130 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 15:36:41,131 INFO L479 AbstractCegarLoop]: Abstraction has 1541 states and 1674 transitions. [2020-09-24 15:36:41,131 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-24 15:36:41,131 INFO L276 IsEmpty]: Start isEmpty. Operand 1541 states and 1674 transitions. [2020-09-24 15:36:41,135 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 220 [2020-09-24 15:36:41,135 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 15:36:41,136 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 15:36:41,137 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-24 15:36:41,137 INFO L427 AbstractCegarLoop]: === Iteration 2 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 15:36:41,137 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 15:36:41,137 INFO L82 PathProgramCache]: Analyzing trace with hash 526616234, now seen corresponding path program 1 times [2020-09-24 15:36:41,138 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 15:36:41,138 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [919820642] [2020-09-24 15:36:41,138 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 15:36:41,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:36:42,475 WARN L193 SmtUtils]: Spent 691.00 ms on a formula simplification that was a NOOP. DAG size: 316 [2020-09-24 15:36:42,476 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 15:36:42,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:36:42,708 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2020-09-24 15:36:42,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:36:42,799 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 177 [2020-09-24 15:36:42,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:36:42,866 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-24 15:36:42,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:36:42,927 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-24 15:36:42,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:36:43,062 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 15:36:43,063 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [919820642] [2020-09-24 15:36:43,063 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 15:36:43,064 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-09-24 15:36:43,064 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2089281415] [2020-09-24 15:36:43,069 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-24 15:36:43,069 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 15:36:43,069 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-24 15:36:43,070 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-09-24 15:36:43,070 INFO L87 Difference]: Start difference. First operand 1541 states and 1674 transitions. Second operand 6 states. [2020-09-24 15:36:44,914 WARN L193 SmtUtils]: Spent 617.00 ms on a formula simplification that was a NOOP. DAG size: 318 [2020-09-24 15:36:48,550 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 15:36:48,550 INFO L93 Difference]: Finished difference Result 1839 states and 2037 transitions. [2020-09-24 15:36:48,559 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-09-24 15:36:48,559 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 219 [2020-09-24 15:36:48,561 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 15:36:48,571 INFO L225 Difference]: With dead ends: 1839 [2020-09-24 15:36:48,571 INFO L226 Difference]: Without dead ends: 1836 [2020-09-24 15:36:48,573 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 15:36:48,576 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1836 states. [2020-09-24 15:36:48,801 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1836 to 1540. [2020-09-24 15:36:48,802 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1540 states. [2020-09-24 15:36:48,809 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1540 states to 1540 states and 1672 transitions. [2020-09-24 15:36:48,810 INFO L78 Accepts]: Start accepts. Automaton has 1540 states and 1672 transitions. Word has length 219 [2020-09-24 15:36:48,812 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 15:36:48,812 INFO L479 AbstractCegarLoop]: Abstraction has 1540 states and 1672 transitions. [2020-09-24 15:36:48,812 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-24 15:36:48,812 INFO L276 IsEmpty]: Start isEmpty. Operand 1540 states and 1672 transitions. [2020-09-24 15:36:48,815 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 221 [2020-09-24 15:36:48,815 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 15:36:48,815 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 15:36:48,816 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-24 15:36:48,816 INFO L427 AbstractCegarLoop]: === Iteration 3 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 15:36:48,816 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 15:36:48,816 INFO L82 PathProgramCache]: Analyzing trace with hash -855644402, now seen corresponding path program 1 times [2020-09-24 15:36:48,817 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 15:36:48,817 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1788150838] [2020-09-24 15:36:48,817 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 15:36:49,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:36:50,056 WARN L193 SmtUtils]: Spent 622.00 ms on a formula simplification that was a NOOP. DAG size: 316 [2020-09-24 15:36:50,058 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 15:36:50,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:36:50,244 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2020-09-24 15:36:50,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:36:50,336 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 177 [2020-09-24 15:36:50,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:36:50,415 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-24 15:36:50,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:36:50,484 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-24 15:36:50,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:36:50,614 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 15:36:50,615 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1788150838] [2020-09-24 15:36:50,615 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 15:36:50,615 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-09-24 15:36:50,615 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [322729675] [2020-09-24 15:36:50,616 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-24 15:36:50,616 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 15:36:50,617 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-24 15:36:50,617 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-09-24 15:36:50,617 INFO L87 Difference]: Start difference. First operand 1540 states and 1672 transitions. Second operand 6 states. [2020-09-24 15:36:52,262 WARN L193 SmtUtils]: Spent 721.00 ms on a formula simplification that was a NOOP. DAG size: 318 [2020-09-24 15:36:55,944 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 15:36:55,944 INFO L93 Difference]: Finished difference Result 1838 states and 2035 transitions. [2020-09-24 15:36:55,951 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-09-24 15:36:55,951 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 220 [2020-09-24 15:36:55,952 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 15:36:55,962 INFO L225 Difference]: With dead ends: 1838 [2020-09-24 15:36:55,962 INFO L226 Difference]: Without dead ends: 1835 [2020-09-24 15:36:55,963 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 [2020-09-24 15:36:55,966 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1835 states. [2020-09-24 15:36:56,148 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1835 to 1539. [2020-09-24 15:36:56,148 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1539 states. [2020-09-24 15:36:56,153 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1539 states to 1539 states and 1670 transitions. [2020-09-24 15:36:56,153 INFO L78 Accepts]: Start accepts. Automaton has 1539 states and 1670 transitions. Word has length 220 [2020-09-24 15:36:56,154 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 15:36:56,154 INFO L479 AbstractCegarLoop]: Abstraction has 1539 states and 1670 transitions. [2020-09-24 15:36:56,154 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-24 15:36:56,155 INFO L276 IsEmpty]: Start isEmpty. Operand 1539 states and 1670 transitions. [2020-09-24 15:36:56,157 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 222 [2020-09-24 15:36:56,158 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 15:36:56,158 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 15:36:56,158 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-24 15:36:56,158 INFO L427 AbstractCegarLoop]: === Iteration 4 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 15:36:56,159 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 15:36:56,159 INFO L82 PathProgramCache]: Analyzing trace with hash -756046291, now seen corresponding path program 1 times [2020-09-24 15:36:56,159 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 15:36:56,160 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1586192636] [2020-09-24 15:36:56,160 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 15:36:56,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:36:57,314 WARN L193 SmtUtils]: Spent 601.00 ms on a formula simplification that was a NOOP. DAG size: 316 [2020-09-24 15:36:57,315 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 15:36:57,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:36:57,481 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2020-09-24 15:36:57,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:36:57,564 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 177 [2020-09-24 15:36:57,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:36:57,627 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-24 15:36:57,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:36:57,685 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-24 15:36:57,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:36:57,818 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 15:36:57,819 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1586192636] [2020-09-24 15:36:57,819 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 15:36:57,819 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-09-24 15:36:57,820 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [622540288] [2020-09-24 15:36:57,820 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-24 15:36:57,820 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 15:36:57,820 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-24 15:36:57,821 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-09-24 15:36:57,821 INFO L87 Difference]: Start difference. First operand 1539 states and 1670 transitions. Second operand 6 states. [2020-09-24 15:36:59,343 WARN L193 SmtUtils]: Spent 679.00 ms on a formula simplification that was a NOOP. DAG size: 318 [2020-09-24 15:37:02,906 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 15:37:02,906 INFO L93 Difference]: Finished difference Result 1835 states and 2032 transitions. [2020-09-24 15:37:02,907 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-09-24 15:37:02,907 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 221 [2020-09-24 15:37:02,908 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 15:37:02,908 INFO L225 Difference]: With dead ends: 1835 [2020-09-24 15:37:02,909 INFO L226 Difference]: Without dead ends: 0 [2020-09-24 15:37:02,914 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 11 SyntacticMatches, 1 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 15:37:02,914 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-09-24 15:37:02,914 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-09-24 15:37:02,914 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-09-24 15:37:02,915 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-09-24 15:37:02,915 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 221 [2020-09-24 15:37:02,915 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 15:37:02,915 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-09-24 15:37:02,915 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-24 15:37:02,916 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-09-24 15:37:02,916 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-09-24 15:37:02,916 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-24 15:37:02,919 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-09-24 15:37:03,385 WARN L193 SmtUtils]: Spent 448.00 ms on a formula simplification that was a NOOP. DAG size: 320 [2020-09-24 15:37:03,834 WARN L193 SmtUtils]: Spent 447.00 ms on a formula simplification that was a NOOP. DAG size: 321 [2020-09-24 15:37:04,273 WARN L193 SmtUtils]: Spent 438.00 ms on a formula simplification that was a NOOP. DAG size: 321 [2020-09-24 15:37:04,704 WARN L193 SmtUtils]: Spent 429.00 ms on a formula simplification that was a NOOP. DAG size: 320 [2020-09-24 15:37:05,131 WARN L193 SmtUtils]: Spent 426.00 ms on a formula simplification that was a NOOP. DAG size: 320 [2020-09-24 15:37:05,566 WARN L193 SmtUtils]: Spent 434.00 ms on a formula simplification that was a NOOP. DAG size: 321 [2020-09-24 15:37:06,000 WARN L193 SmtUtils]: Spent 429.00 ms on a formula simplification that was a NOOP. DAG size: 320 [2020-09-24 15:37:06,438 WARN L193 SmtUtils]: Spent 436.00 ms on a formula simplification that was a NOOP. DAG size: 321 [2020-09-24 15:37:06,872 WARN L193 SmtUtils]: Spent 432.00 ms on a formula simplification that was a NOOP. DAG size: 321 [2020-09-24 15:37:07,298 WARN L193 SmtUtils]: Spent 425.00 ms on a formula simplification that was a NOOP. DAG size: 320 [2020-09-24 15:37:07,737 WARN L193 SmtUtils]: Spent 437.00 ms on a formula simplification that was a NOOP. DAG size: 320 [2020-09-24 15:37:08,171 WARN L193 SmtUtils]: Spent 433.00 ms on a formula simplification that was a NOOP. DAG size: 321 [2020-09-24 15:37:08,597 WARN L193 SmtUtils]: Spent 424.00 ms on a formula simplification that was a NOOP. DAG size: 320 [2020-09-24 15:37:09,024 WARN L193 SmtUtils]: Spent 426.00 ms on a formula simplification that was a NOOP. DAG size: 320 [2020-09-24 15:37:09,458 WARN L193 SmtUtils]: Spent 432.00 ms on a formula simplification that was a NOOP. DAG size: 321 [2020-09-24 15:37:09,893 WARN L193 SmtUtils]: Spent 433.00 ms on a formula simplification that was a NOOP. DAG size: 321 [2020-09-24 15:37:10,343 WARN L193 SmtUtils]: Spent 445.00 ms on a formula simplification that was a NOOP. DAG size: 320 [2020-09-24 15:37:10,786 WARN L193 SmtUtils]: Spent 441.00 ms on a formula simplification that was a NOOP. DAG size: 321 [2020-09-24 15:37:11,220 WARN L193 SmtUtils]: Spent 433.00 ms on a formula simplification that was a NOOP. DAG size: 321 [2020-09-24 15:37:11,654 WARN L193 SmtUtils]: Spent 432.00 ms on a formula simplification that was a NOOP. DAG size: 321 [2020-09-24 15:37:12,086 WARN L193 SmtUtils]: Spent 431.00 ms on a formula simplification that was a NOOP. DAG size: 320