/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=BIGGEST --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-64bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--media--usb--b2c2--b2c2-flexcop-usb.ko-main.cil.out.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-24 21:11:14,746 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-24 21:11:14,749 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-24 21:11:14,776 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-24 21:11:14,776 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-24 21:11:14,778 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-24 21:11:14,779 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-24 21:11:14,781 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-24 21:11:14,783 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-24 21:11:14,784 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-24 21:11:14,785 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-24 21:11:14,787 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-24 21:11:14,787 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-24 21:11:14,788 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-24 21:11:14,790 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-24 21:11:14,791 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-24 21:11:14,792 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-24 21:11:14,793 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-24 21:11:14,795 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-24 21:11:14,797 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-24 21:11:14,799 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-24 21:11:14,800 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-24 21:11:14,801 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-24 21:11:14,802 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-24 21:11:14,805 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-24 21:11:14,805 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-24 21:11:14,805 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-24 21:11:14,807 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-24 21:11:14,807 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-24 21:11:14,808 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-24 21:11:14,808 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-24 21:11:14,809 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-24 21:11:14,811 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-24 21:11:14,811 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-24 21:11:14,813 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-24 21:11:14,813 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-24 21:11:14,814 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-24 21:11:14,814 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-24 21:11:14,814 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-24 21:11:14,815 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-24 21:11:14,816 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-24 21:11:14,817 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 21:11:14,859 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-24 21:11:14,860 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-24 21:11:14,861 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-24 21:11:14,862 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-24 21:11:14,862 INFO L138 SettingsManager]: * Use SBE=true [2020-09-24 21:11:14,862 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-24 21:11:14,863 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-24 21:11:14,863 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-24 21:11:14,863 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-24 21:11:14,863 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-24 21:11:14,863 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-24 21:11:14,863 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-24 21:11:14,864 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-24 21:11:14,865 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-24 21:11:14,865 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-24 21:11:14,865 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-24 21:11:14,865 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-24 21:11:14,866 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-24 21:11:14,867 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-24 21:11:14,867 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-24 21:11:14,867 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-24 21:11:14,867 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-24 21:11:14,868 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-24 21:11:14,868 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-24 21:11:14,868 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-24 21:11:14,868 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-24 21:11:14,868 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-09-24 21:11:14,868 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=BIGGEST;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=BIGGEST;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=BIGGEST;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=BIGGEST;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=BIGGEST;log-additional-information=true; [2020-09-24 21:11:15,384 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-24 21:11:15,409 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-24 21:11:15,415 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-24 21:11:15,419 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-24 21:11:15,420 INFO L275 PluginConnector]: CDTParser initialized [2020-09-24 21:11:15,421 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--media--usb--b2c2--b2c2-flexcop-usb.ko-main.cil.out.i [2020-09-24 21:11:15,515 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/b63d07696/84c52ae10cd84c86bccc13123b491706/FLAGbbb91faef [2020-09-24 21:11:16,422 INFO L306 CDTParser]: Found 1 translation units. [2020-09-24 21:11:16,423 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--media--usb--b2c2--b2c2-flexcop-usb.ko-main.cil.out.i [2020-09-24 21:11:16,490 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/b63d07696/84c52ae10cd84c86bccc13123b491706/FLAGbbb91faef [2020-09-24 21:11:16,886 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/b63d07696/84c52ae10cd84c86bccc13123b491706 [2020-09-24 21:11:16,899 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-24 21:11:16,904 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-24 21:11:16,906 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-24 21:11:16,906 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-24 21:11:16,910 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-24 21:11:16,912 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 09:11:16" (1/1) ... [2020-09-24 21:11:16,916 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5d7293d5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:11:16, skipping insertion in model container [2020-09-24 21:11:16,917 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 09:11:16" (1/1) ... [2020-09-24 21:11:16,927 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-24 21:11:17,046 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-24 21:11:18,784 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 21:11:18,818 INFO L203 MainTranslator]: Completed pre-run [2020-09-24 21:11:19,435 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 21:11:19,597 INFO L208 MainTranslator]: Completed translation [2020-09-24 21:11:19,599 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:11:19 WrapperNode [2020-09-24 21:11:19,599 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-24 21:11:19,600 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-24 21:11:19,601 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-24 21:11:19,601 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-24 21:11:19,640 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:11:19" (1/1) ... [2020-09-24 21:11:19,641 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:11:19" (1/1) ... [2020-09-24 21:11:19,738 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:11:19" (1/1) ... [2020-09-24 21:11:19,739 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:11:19" (1/1) ... [2020-09-24 21:11:20,156 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:11:19" (1/1) ... [2020-09-24 21:11:20,187 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:11:19" (1/1) ... [2020-09-24 21:11:20,223 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:11:19" (1/1) ... [2020-09-24 21:11:20,266 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-24 21:11:20,267 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-24 21:11:20,267 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-24 21:11:20,267 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-24 21:11:20,268 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:11:19" (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 21:11:20,366 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-24 21:11:20,367 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-24 21:11:20,368 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~int~X~$Pointer$~X~~gfp_t~0~X~$Pointer$~TO~$Pointer$ [2020-09-24 21:11:20,368 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 21:11:20,368 INFO L138 BoogieDeclarations]: Found implementation of procedure arch_local_save_flags [2020-09-24 21:11:20,368 INFO L138 BoogieDeclarations]: Found implementation of procedure arch_irqs_disabled_flags [2020-09-24 21:11:20,370 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_get_intfdata [2020-09-24 21:11:20,370 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_set_intfdata [2020-09-24 21:11:20,371 INFO L138 BoogieDeclarations]: Found implementation of procedure interface_to_usbdev [2020-09-24 21:11:20,371 INFO L138 BoogieDeclarations]: Found implementation of procedure __create_pipe [2020-09-24 21:11:20,372 INFO L138 BoogieDeclarations]: Found implementation of procedure is_device_dma_capable [2020-09-24 21:11:20,372 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2020-09-24 21:11:20,373 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_alloc_coherent_mask [2020-09-24 21:11:20,373 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_alloc_coherent_gfp_flags [2020-09-24 21:11:20,373 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_alloc_attrs [2020-09-24 21:11:20,373 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_free_attrs [2020-09-24 21:11:20,373 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_alloc_consistent [2020-09-24 21:11:20,376 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_free_consistent [2020-09-24 21:11:20,376 INFO L138 BoogieDeclarations]: Found implementation of procedure flexcop_usb_readwrite_dw [2020-09-24 21:11:20,376 INFO L138 BoogieDeclarations]: Found implementation of procedure flexcop_usb_v8_memory_req [2020-09-24 21:11:20,377 INFO L138 BoogieDeclarations]: Found implementation of procedure flexcop_usb_memory_req [2020-09-24 21:11:20,377 INFO L138 BoogieDeclarations]: Found implementation of procedure flexcop_usb_get_mac_addr [2020-09-24 21:11:20,377 INFO L138 BoogieDeclarations]: Found implementation of procedure flexcop_usb_i2c_req [2020-09-24 21:11:20,377 INFO L138 BoogieDeclarations]: Found implementation of procedure flexcop_usb_read_ibi_reg [2020-09-24 21:11:20,377 INFO L138 BoogieDeclarations]: Found implementation of procedure flexcop_usb_write_ibi_reg [2020-09-24 21:11:20,377 INFO L138 BoogieDeclarations]: Found implementation of procedure flexcop_usb_i2c_request [2020-09-24 21:11:20,378 INFO L138 BoogieDeclarations]: Found implementation of procedure flexcop_usb_process_frame [2020-09-24 21:11:20,378 INFO L138 BoogieDeclarations]: Found implementation of procedure flexcop_usb_urb_complete [2020-09-24 21:11:20,378 INFO L138 BoogieDeclarations]: Found implementation of procedure flexcop_usb_stream_control [2020-09-24 21:11:20,378 INFO L138 BoogieDeclarations]: Found implementation of procedure flexcop_usb_transfer_exit [2020-09-24 21:11:20,379 INFO L138 BoogieDeclarations]: Found implementation of procedure flexcop_usb_transfer_init [2020-09-24 21:11:20,379 INFO L138 BoogieDeclarations]: Found implementation of procedure flexcop_usb_init [2020-09-24 21:11:20,379 INFO L138 BoogieDeclarations]: Found implementation of procedure flexcop_usb_exit [2020-09-24 21:11:20,379 INFO L138 BoogieDeclarations]: Found implementation of procedure flexcop_usb_probe [2020-09-24 21:11:20,379 INFO L138 BoogieDeclarations]: Found implementation of procedure flexcop_usb_disconnect [2020-09-24 21:11:20,379 INFO L138 BoogieDeclarations]: Found implementation of procedure flexcop_usb_driver_init [2020-09-24 21:11:20,380 INFO L138 BoogieDeclarations]: Found implementation of procedure flexcop_usb_driver_exit [2020-09-24 21:11:20,380 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-24 21:11:20,380 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_1 [2020-09-24 21:11:20,380 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_2 [2020-09-24 21:11:20,380 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_3 [2020-09-24 21:11:20,380 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_trylock_4 [2020-09-24 21:11:20,380 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_5 [2020-09-24 21:11:20,381 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_6 [2020-09-24 21:11:20,381 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_7 [2020-09-24 21:11:20,381 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_register_driver_8 [2020-09-24 21:11:20,381 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_deregister_9 [2020-09-24 21:11:20,381 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2020-09-24 21:11:20,381 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2020-09-24 21:11:20,381 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_trap [2020-09-24 21:11:20,382 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_interruptible_cred_guard_mutex_of_signal_struct [2020-09-24 21:11:20,382 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_killable_cred_guard_mutex_of_signal_struct [2020-09-24 21:11:20,382 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_cred_guard_mutex_of_signal_struct [2020-09-24 21:11:20,382 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_trylock_cred_guard_mutex_of_signal_struct [2020-09-24 21:11:20,382 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_dec_and_mutex_lock_cred_guard_mutex_of_signal_struct [2020-09-24 21:11:20,383 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_is_locked_cred_guard_mutex_of_signal_struct [2020-09-24 21:11:20,383 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_cred_guard_mutex_of_signal_struct [2020-09-24 21:11:20,383 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_interruptible_lock [2020-09-24 21:11:20,383 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_killable_lock [2020-09-24 21:11:20,384 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_lock [2020-09-24 21:11:20,384 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_trylock_lock [2020-09-24 21:11:20,384 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_dec_and_mutex_lock_lock [2020-09-24 21:11:20,384 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_is_locked_lock [2020-09-24 21:11:20,384 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_lock [2020-09-24 21:11:20,384 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_interruptible_mutex_of_device [2020-09-24 21:11:20,385 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_killable_mutex_of_device [2020-09-24 21:11:20,385 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_mutex_of_device [2020-09-24 21:11:20,385 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_trylock_mutex_of_device [2020-09-24 21:11:20,385 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_dec_and_mutex_lock_mutex_of_device [2020-09-24 21:11:20,385 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_is_locked_mutex_of_device [2020-09-24 21:11:20,385 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_mutex_of_device [2020-09-24 21:11:20,386 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize [2020-09-24 21:11:20,386 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2020-09-24 21:11:20,387 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_dma_alloc_coherent [2020-09-24 21:11:20,387 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_dma_free_coherent [2020-09-24 21:11:20,387 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2020-09-24 21:11:20,388 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_get_drvdata [2020-09-24 21:11:20,388 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_set_drvdata [2020-09-24 21:11:20,388 INFO L138 BoogieDeclarations]: Found implementation of procedure flexcop_device_exit [2020-09-24 21:11:20,388 INFO L138 BoogieDeclarations]: Found implementation of procedure flexcop_device_initialize [2020-09-24 21:11:20,389 INFO L138 BoogieDeclarations]: Found implementation of procedure flexcop_device_kfree [2020-09-24 21:11:20,389 INFO L138 BoogieDeclarations]: Found implementation of procedure flexcop_device_kmalloc [2020-09-24 21:11:20,390 INFO L138 BoogieDeclarations]: Found implementation of procedure flexcop_pass_dmx_packets [2020-09-24 21:11:20,390 INFO L138 BoogieDeclarations]: Found implementation of procedure flexcop_sram_ctrl [2020-09-24 21:11:20,390 INFO L138 BoogieDeclarations]: Found implementation of procedure flexcop_sram_set_dest [2020-09-24 21:11:20,390 INFO L138 BoogieDeclarations]: Found implementation of procedure flexcop_wan_set_speed [2020-09-24 21:11:20,390 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock [2020-09-24 21:11:20,390 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_trylock [2020-09-24 21:11:20,391 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2020-09-24 21:11:20,391 INFO L138 BoogieDeclarations]: Found implementation of procedure printk [2020-09-24 21:11:20,391 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_alloc_urb [2020-09-24 21:11:20,391 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_control_msg [2020-09-24 21:11:20,391 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_deregister [2020-09-24 21:11:20,391 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_free_urb [2020-09-24 21:11:20,391 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_kill_urb [2020-09-24 21:11:20,392 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_register_driver [2020-09-24 21:11:20,392 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_set_interface [2020-09-24 21:11:20,392 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_submit_urb [2020-09-24 21:11:20,393 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2020-09-24 21:11:20,393 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2020-09-24 21:11:20,393 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2020-09-24 21:11:20,393 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2020-09-24 21:11:20,394 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-24 21:11:20,394 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2020-09-24 21:11:20,394 INFO L130 BoogieDeclarations]: Found specification of procedure printk [2020-09-24 21:11:20,394 INFO L130 BoogieDeclarations]: Found specification of procedure memset [2020-09-24 21:11:20,394 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2020-09-24 21:11:20,394 INFO L130 BoogieDeclarations]: Found specification of procedure arch_local_save_flags [2020-09-24 21:11:20,394 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-24 21:11:20,395 INFO L130 BoogieDeclarations]: Found specification of procedure arch_irqs_disabled_flags [2020-09-24 21:11:20,395 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_trylock [2020-09-24 21:11:20,395 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_trylock_4 [2020-09-24 21:11:20,395 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2020-09-24 21:11:20,395 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_2 [2020-09-24 21:11:20,395 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_5 [2020-09-24 21:11:20,396 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_7 [2020-09-24 21:11:20,396 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock [2020-09-24 21:11:20,396 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_1 [2020-09-24 21:11:20,396 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_3 [2020-09-24 21:11:20,396 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_6 [2020-09-24 21:11:20,397 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_cred_guard_mutex_of_signal_struct [2020-09-24 21:11:20,397 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_cred_guard_mutex_of_signal_struct [2020-09-24 21:11:20,397 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_lock [2020-09-24 21:11:20,397 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_lock [2020-09-24 21:11:20,398 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_mutex_of_device [2020-09-24 21:11:20,398 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_trylock_mutex_of_device [2020-09-24 21:11:20,399 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_mutex_of_device [2020-09-24 21:11:20,399 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-24 21:11:20,399 INFO L130 BoogieDeclarations]: Found specification of procedure dev_get_drvdata [2020-09-24 21:11:20,400 INFO L130 BoogieDeclarations]: Found specification of procedure dev_set_drvdata [2020-09-24 21:11:20,404 INFO L130 BoogieDeclarations]: Found specification of procedure usb_get_intfdata [2020-09-24 21:11:20,404 INFO L130 BoogieDeclarations]: Found specification of procedure usb_set_intfdata [2020-09-24 21:11:20,404 INFO L130 BoogieDeclarations]: Found specification of procedure interface_to_usbdev [2020-09-24 21:11:20,405 INFO L130 BoogieDeclarations]: Found specification of procedure usb_register_driver [2020-09-24 21:11:20,405 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_register_driver_8 [2020-09-24 21:11:20,405 INFO L130 BoogieDeclarations]: Found specification of procedure usb_deregister [2020-09-24 21:11:20,405 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_deregister_9 [2020-09-24 21:11:20,406 INFO L130 BoogieDeclarations]: Found specification of procedure usb_alloc_urb [2020-09-24 21:11:20,406 INFO L130 BoogieDeclarations]: Found specification of procedure usb_free_urb [2020-09-24 21:11:20,406 INFO L130 BoogieDeclarations]: Found specification of procedure usb_submit_urb [2020-09-24 21:11:20,406 INFO L130 BoogieDeclarations]: Found specification of procedure usb_kill_urb [2020-09-24 21:11:20,406 INFO L130 BoogieDeclarations]: Found specification of procedure usb_control_msg [2020-09-24 21:11:20,407 INFO L130 BoogieDeclarations]: Found specification of procedure usb_set_interface [2020-09-24 21:11:20,407 INFO L130 BoogieDeclarations]: Found specification of procedure __create_pipe [2020-09-24 21:11:20,407 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-24 21:11:20,415 INFO L130 BoogieDeclarations]: Found specification of procedure is_device_dma_capable [2020-09-24 21:11:20,415 INFO L130 BoogieDeclarations]: Found specification of procedure debug_dma_alloc_coherent [2020-09-24 21:11:20,415 INFO L130 BoogieDeclarations]: Found specification of procedure debug_dma_free_coherent [2020-09-24 21:11:20,415 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2020-09-24 21:11:20,415 INFO L130 BoogieDeclarations]: Found specification of procedure dma_alloc_coherent_mask [2020-09-24 21:11:20,415 INFO L130 BoogieDeclarations]: Found specification of procedure dma_alloc_coherent_gfp_flags [2020-09-24 21:11:20,416 INFO L130 BoogieDeclarations]: Found specification of procedure dma_alloc_attrs [2020-09-24 21:11:20,416 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~int~X~$Pointer$~X~~gfp_t~0~X~$Pointer$~TO~$Pointer$ [2020-09-24 21:11:20,416 INFO L130 BoogieDeclarations]: Found specification of procedure dma_free_attrs [2020-09-24 21:11:20,416 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-24 21:11:20,417 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 21:11:20,417 INFO L130 BoogieDeclarations]: Found specification of procedure pci_alloc_consistent [2020-09-24 21:11:20,417 INFO L130 BoogieDeclarations]: Found specification of procedure pci_free_consistent [2020-09-24 21:11:20,417 INFO L130 BoogieDeclarations]: Found specification of procedure flexcop_pass_dmx_packets [2020-09-24 21:11:20,417 INFO L130 BoogieDeclarations]: Found specification of procedure flexcop_device_kmalloc [2020-09-24 21:11:20,417 INFO L130 BoogieDeclarations]: Found specification of procedure flexcop_device_kfree [2020-09-24 21:11:20,417 INFO L130 BoogieDeclarations]: Found specification of procedure flexcop_device_initialize [2020-09-24 21:11:20,417 INFO L130 BoogieDeclarations]: Found specification of procedure flexcop_device_exit [2020-09-24 21:11:20,418 INFO L130 BoogieDeclarations]: Found specification of procedure flexcop_sram_set_dest [2020-09-24 21:11:20,418 INFO L130 BoogieDeclarations]: Found specification of procedure flexcop_wan_set_speed [2020-09-24 21:11:20,418 INFO L130 BoogieDeclarations]: Found specification of procedure flexcop_sram_ctrl [2020-09-24 21:11:20,418 INFO L130 BoogieDeclarations]: Found specification of procedure flexcop_usb_readwrite_dw [2020-09-24 21:11:20,418 INFO L130 BoogieDeclarations]: Found specification of procedure flexcop_usb_v8_memory_req [2020-09-24 21:11:20,418 INFO L130 BoogieDeclarations]: Found specification of procedure flexcop_usb_memory_req [2020-09-24 21:11:20,418 INFO L130 BoogieDeclarations]: Found specification of procedure flexcop_usb_get_mac_addr [2020-09-24 21:11:20,418 INFO L130 BoogieDeclarations]: Found specification of procedure flexcop_usb_i2c_req [2020-09-24 21:11:20,419 INFO L130 BoogieDeclarations]: Found specification of procedure flexcop_usb_read_ibi_reg [2020-09-24 21:11:20,419 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-24 21:11:20,419 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-24 21:11:20,419 INFO L130 BoogieDeclarations]: Found specification of procedure flexcop_usb_write_ibi_reg [2020-09-24 21:11:20,419 INFO L130 BoogieDeclarations]: Found specification of procedure flexcop_usb_i2c_request [2020-09-24 21:11:20,419 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy [2020-09-24 21:11:20,419 INFO L130 BoogieDeclarations]: Found specification of procedure flexcop_usb_process_frame [2020-09-24 21:11:20,420 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2020-09-24 21:11:20,420 INFO L130 BoogieDeclarations]: Found specification of procedure flexcop_usb_urb_complete [2020-09-24 21:11:20,420 INFO L130 BoogieDeclarations]: Found specification of procedure flexcop_usb_stream_control [2020-09-24 21:11:20,420 INFO L130 BoogieDeclarations]: Found specification of procedure flexcop_usb_transfer_exit [2020-09-24 21:11:20,420 INFO L130 BoogieDeclarations]: Found specification of procedure flexcop_usb_transfer_init [2020-09-24 21:11:20,420 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-24 21:11:20,420 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2020-09-24 21:11:20,420 INFO L130 BoogieDeclarations]: Found specification of procedure flexcop_usb_init [2020-09-24 21:11:20,421 INFO L130 BoogieDeclarations]: Found specification of procedure flexcop_usb_exit [2020-09-24 21:11:20,421 INFO L130 BoogieDeclarations]: Found specification of procedure flexcop_usb_probe [2020-09-24 21:11:20,421 INFO L130 BoogieDeclarations]: Found specification of procedure flexcop_usb_disconnect [2020-09-24 21:11:20,421 INFO L130 BoogieDeclarations]: Found specification of procedure flexcop_usb_driver_init [2020-09-24 21:11:20,421 INFO L130 BoogieDeclarations]: Found specification of procedure flexcop_usb_driver_exit [2020-09-24 21:11:20,421 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize [2020-09-24 21:11:20,421 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2020-09-24 21:11:20,421 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-24 21:11:20,422 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2020-09-24 21:11:20,422 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_trap [2020-09-24 21:11:20,422 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_interruptible_cred_guard_mutex_of_signal_struct [2020-09-24 21:11:20,422 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_killable_cred_guard_mutex_of_signal_struct [2020-09-24 21:11:20,422 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_trylock_cred_guard_mutex_of_signal_struct [2020-09-24 21:11:20,422 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_dec_and_mutex_lock_cred_guard_mutex_of_signal_struct [2020-09-24 21:11:20,422 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_is_locked_cred_guard_mutex_of_signal_struct [2020-09-24 21:11:20,422 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_interruptible_lock [2020-09-24 21:11:20,423 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_killable_lock [2020-09-24 21:11:20,423 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_trylock_lock [2020-09-24 21:11:20,423 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_dec_and_mutex_lock_lock [2020-09-24 21:11:20,423 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_is_locked_lock [2020-09-24 21:11:20,423 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_interruptible_mutex_of_device [2020-09-24 21:11:20,423 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_killable_mutex_of_device [2020-09-24 21:11:20,423 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_dec_and_mutex_lock_mutex_of_device [2020-09-24 21:11:20,423 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_is_locked_mutex_of_device [2020-09-24 21:11:20,424 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_bool [2020-09-24 21:11:20,424 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-24 21:11:20,424 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2020-09-24 21:11:20,424 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-24 21:11:20,424 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-24 21:11:20,424 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2020-09-24 21:11:20,424 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-24 21:11:20,425 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-24 21:11:20,425 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2020-09-24 21:11:20,425 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-24 21:11:20,425 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2020-09-24 21:11:20,425 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2020-09-24 21:11:20,425 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2020-09-24 21:11:20,425 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2020-09-24 21:11:25,228 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-24 21:11:25,229 INFO L295 CfgBuilder]: Removed 0 assume(true) statements. [2020-09-24 21:11:25,246 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 09:11:25 BoogieIcfgContainer [2020-09-24 21:11:25,246 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-24 21:11:25,250 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-24 21:11:25,250 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-24 21:11:25,254 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-24 21:11:25,254 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.09 09:11:16" (1/3) ... [2020-09-24 21:11:25,255 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@490e7a9d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 09:11:25, skipping insertion in model container [2020-09-24 21:11:25,255 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 09:11:19" (2/3) ... [2020-09-24 21:11:25,255 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@490e7a9d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 09:11:25, skipping insertion in model container [2020-09-24 21:11:25,256 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 09:11:25" (3/3) ... [2020-09-24 21:11:25,259 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 21:11:25,270 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-24 21:11:25,281 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-24 21:11:25,300 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-24 21:11:25,333 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-24 21:11:25,333 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-24 21:11:25,333 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-24 21:11:25,333 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-24 21:11:25,333 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-24 21:11:25,334 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-24 21:11:25,334 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-24 21:11:25,334 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-24 21:11:25,385 INFO L276 IsEmpty]: Start isEmpty. Operand 2184 states. [2020-09-24 21:11:25,403 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 193 [2020-09-24 21:11:25,404 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 21:11:25,405 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 21:11:25,406 INFO L427 AbstractCegarLoop]: === Iteration 1 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 21:11:25,412 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 21:11:25,413 INFO L82 PathProgramCache]: Analyzing trace with hash 2037642771, now seen corresponding path program 1 times [2020-09-24 21:11:25,423 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 21:11:25,423 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1853779952] [2020-09-24 21:11:25,424 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 21:11:26,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:11:26,510 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:11:27,570 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:11:29,333 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:11:29,333 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 211 [2020-09-24 21:11:29,333 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 21:11:29,334 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3124 [2020-09-24 21:11:29,337 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 21:11:29,337 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:11:29,337 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 169 [2020-09-24 21:11:29,338 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-09-24 21:11:29,338 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-09-24 21:11:30,442 WARN L193 SmtUtils]: Spent 680.00 ms on a formula simplification that was a NOOP. DAG size: 316 [2020-09-24 21:11:30,445 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 21:11:30,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:11:30,568 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:11:31,072 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:11:31,073 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 153 [2020-09-24 21:11:31,073 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:11:31,073 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 603 [2020-09-24 21:11:31,073 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 21:11:31,074 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:11:31,074 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:11:31,074 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:11:31,074 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:11:31,326 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2020-09-24 21:11:31,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:11:31,361 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:11:31,461 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:11:31,461 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 21:11:31,461 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:11:31,462 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 132 [2020-09-24 21:11:31,462 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 21:11:31,462 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:11:31,462 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:11:31,462 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:11:31,463 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:11:31,530 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2020-09-24 21:11:31,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:11:31,568 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:11:31,672 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:11:31,672 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-09-24 21:11:31,672 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:11:31,672 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 138 [2020-09-24 21:11:31,673 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 21:11:31,673 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:11:31,673 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 18 [2020-09-24 21:11:31,673 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:11:31,674 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:11:31,721 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 21:11:31,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:11:31,754 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:11:31,855 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:11:31,855 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-09-24 21:11:31,856 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:11:31,856 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 131 [2020-09-24 21:11:31,856 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 21:11:31,856 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:11:31,857 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:11:31,857 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:11:31,857 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:11:31,908 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-24 21:11:31,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:11:31,943 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:11:32,012 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:11:32,012 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 21:11:32,013 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:11:32,013 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 100 [2020-09-24 21:11:32,013 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 21:11:32,013 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:11:32,013 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:11:32,014 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:11:32,014 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:11:32,123 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 21:11:32,124 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1853779952] [2020-09-24 21:11:32,127 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 21:11:32,127 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-09-24 21:11:32,128 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1877184078] [2020-09-24 21:11:32,135 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-24 21:11:32,135 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 21:11:32,153 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-24 21:11:32,154 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-09-24 21:11:32,160 INFO L87 Difference]: Start difference. First operand 2184 states. Second operand 6 states. [2020-09-24 21:11:33,785 WARN L193 SmtUtils]: Spent 633.00 ms on a formula simplification that was a NOOP. DAG size: 318 [2020-09-24 21:11:44,079 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 21:11:44,080 INFO L93 Difference]: Finished difference Result 1878 states and 2091 transitions. [2020-09-24 21:11:44,080 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-09-24 21:11:44,082 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 192 [2020-09-24 21:11:44,083 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 21:11:44,117 INFO L225 Difference]: With dead ends: 1878 [2020-09-24 21:11:44,117 INFO L226 Difference]: Without dead ends: 1838 [2020-09-24 21:11:44,124 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=42, Invalid=68, Unknown=0, NotChecked=0, Total=110 [2020-09-24 21:11:44,148 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1838 states. [2020-09-24 21:11:44,424 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1838 to 1541. [2020-09-24 21:11:44,426 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1541 states. [2020-09-24 21:11:44,435 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1541 states to 1541 states and 1676 transitions. [2020-09-24 21:11:44,438 INFO L78 Accepts]: Start accepts. Automaton has 1541 states and 1676 transitions. Word has length 192 [2020-09-24 21:11:44,439 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 21:11:44,439 INFO L479 AbstractCegarLoop]: Abstraction has 1541 states and 1676 transitions. [2020-09-24 21:11:44,439 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-24 21:11:44,439 INFO L276 IsEmpty]: Start isEmpty. Operand 1541 states and 1676 transitions. [2020-09-24 21:11:44,446 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 220 [2020-09-24 21:11:44,446 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 21:11:44,446 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 21:11:44,447 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-24 21:11:44,447 INFO L427 AbstractCegarLoop]: === Iteration 2 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 21:11:44,447 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 21:11:44,448 INFO L82 PathProgramCache]: Analyzing trace with hash 526616234, now seen corresponding path program 1 times [2020-09-24 21:11:44,448 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 21:11:44,448 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [347597744] [2020-09-24 21:11:44,448 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 21:11:44,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:11:44,810 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:11:45,902 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:11:45,902 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 238 [2020-09-24 21:11:45,902 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:11:45,902 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1276 [2020-09-24 21:11:45,903 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 21:11:45,903 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:11:45,903 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 162 [2020-09-24 21:11:45,903 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 72 [2020-09-24 21:11:45,903 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:11:46,976 WARN L193 SmtUtils]: Spent 619.00 ms on a formula simplification that was a NOOP. DAG size: 316 [2020-09-24 21:11:46,978 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 21:11:46,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:11:47,054 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:11:47,393 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:11:47,393 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 153 [2020-09-24 21:11:47,393 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:11:47,394 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 399 [2020-09-24 21:11:47,394 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 21:11:47,394 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:11:47,394 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:11:47,395 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:11:47,395 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:11:47,597 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2020-09-24 21:11:47,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:11:47,638 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:11:47,784 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:11:47,784 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 21:11:47,784 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:11:47,785 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 177 [2020-09-24 21:11:47,785 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 21:11:47,786 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:11:47,786 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:11:47,786 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-09-24 21:11:47,787 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:11:47,865 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 177 [2020-09-24 21:11:47,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:11:47,925 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:11:48,093 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:11:48,093 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-09-24 21:11:48,094 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:11:48,094 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 207 [2020-09-24 21:11:48,094 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 21:11:48,094 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:11:48,095 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:11:48,095 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 37 [2020-09-24 21:11:48,095 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:11:48,150 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-24 21:11:48,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:11:48,184 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:11:48,279 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:11:48,279 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 31 [2020-09-24 21:11:48,280 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:11:48,280 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 126 [2020-09-24 21:11:48,280 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 21:11:48,280 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:11:48,280 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:11:48,281 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:11:48,281 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:11:48,348 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-24 21:11:48,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:11:48,377 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:11:48,436 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:11:48,436 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-09-24 21:11:48,442 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:11:48,442 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 86 [2020-09-24 21:11:48,442 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 21:11:48,442 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:11:48,443 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:11:48,443 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:11:48,443 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:11:48,615 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 21:11:48,616 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [347597744] [2020-09-24 21:11:48,616 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 21:11:48,617 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-09-24 21:11:48,617 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [763656] [2020-09-24 21:11:48,625 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-24 21:11:48,625 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 21:11:48,625 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-24 21:11:48,626 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-09-24 21:11:48,626 INFO L87 Difference]: Start difference. First operand 1541 states and 1676 transitions. Second operand 6 states. [2020-09-24 21:11:50,255 WARN L193 SmtUtils]: Spent 743.00 ms on a formula simplification that was a NOOP. DAG size: 318 [2020-09-24 21:11:54,057 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 21:11:54,057 INFO L93 Difference]: Finished difference Result 1839 states and 2039 transitions. [2020-09-24 21:11:54,058 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-09-24 21:11:54,058 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 219 [2020-09-24 21:11:54,060 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 21:11:54,068 INFO L225 Difference]: With dead ends: 1839 [2020-09-24 21:11:54,069 INFO L226 Difference]: Without dead ends: 1836 [2020-09-24 21:11:54,073 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=42, Invalid=68, Unknown=0, NotChecked=0, Total=110 [2020-09-24 21:11:54,076 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1836 states. [2020-09-24 21:11:54,282 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1836 to 1540. [2020-09-24 21:11:54,282 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1540 states. [2020-09-24 21:11:54,289 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1540 states to 1540 states and 1674 transitions. [2020-09-24 21:11:54,290 INFO L78 Accepts]: Start accepts. Automaton has 1540 states and 1674 transitions. Word has length 219 [2020-09-24 21:11:54,290 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 21:11:54,291 INFO L479 AbstractCegarLoop]: Abstraction has 1540 states and 1674 transitions. [2020-09-24 21:11:54,291 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-24 21:11:54,291 INFO L276 IsEmpty]: Start isEmpty. Operand 1540 states and 1674 transitions. [2020-09-24 21:11:54,294 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 221 [2020-09-24 21:11:54,294 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 21:11:54,294 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 21:11:54,294 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-24 21:11:54,295 INFO L427 AbstractCegarLoop]: === Iteration 3 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 21:11:54,295 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 21:11:54,295 INFO L82 PathProgramCache]: Analyzing trace with hash -855644402, now seen corresponding path program 1 times [2020-09-24 21:11:54,295 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 21:11:54,296 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1389714933] [2020-09-24 21:11:54,296 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 21:11:54,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:11:54,593 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:11:55,400 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:11:55,401 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 239 [2020-09-24 21:11:55,401 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:11:55,401 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 956 [2020-09-24 21:11:55,401 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 21:11:55,401 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:11:55,402 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 163 [2020-09-24 21:11:55,402 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 72 [2020-09-24 21:11:55,402 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:11:56,499 WARN L193 SmtUtils]: Spent 674.00 ms on a formula simplification that was a NOOP. DAG size: 316 [2020-09-24 21:11:56,501 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 21:11:56,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:11:56,620 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:11:57,219 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:11:57,220 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 153 [2020-09-24 21:11:57,220 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:11:57,221 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 695 [2020-09-24 21:11:57,221 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 21:11:57,221 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:11:57,222 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:11:57,222 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:11:57,222 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:11:57,453 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2020-09-24 21:11:57,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:11:57,495 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:11:57,661 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:11:57,662 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 21:11:57,662 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:11:57,663 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 199 [2020-09-24 21:11:57,663 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 21:11:57,663 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:11:57,664 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:11:57,664 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-24 21:11:57,665 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:11:57,749 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 177 [2020-09-24 21:11:57,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:11:57,803 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:11:57,959 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:11:57,959 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-09-24 21:11:57,959 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:11:57,960 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 191 [2020-09-24 21:11:57,960 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 21:11:57,960 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 21:11:57,960 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:11:57,960 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 37 [2020-09-24 21:11:57,961 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:11:58,013 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-24 21:11:58,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:11:58,046 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:11:58,110 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:11:58,110 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 31 [2020-09-24 21:11:58,111 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:11:58,111 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 94 [2020-09-24 21:11:58,111 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 21:11:58,111 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:11:58,111 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:11:58,112 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:11:58,112 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 21:11:58,176 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-24 21:11:58,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 21:11:58,203 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 21:11:58,261 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 21:11:58,262 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-09-24 21:11:58,262 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 21:11:58,262 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 83 [2020-09-24 21:11:58,262 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-09-24 21:11:58,263 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 21:11:58,263 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 21:11:58,263 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 21:11:58,264 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 21:11:58,379 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 21:11:58,380 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1389714933] [2020-09-24 21:11:58,380 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 21:11:58,381 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-09-24 21:11:58,381 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [90283500] [2020-09-24 21:11:58,382 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-24 21:11:58,382 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 21:11:58,382 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-24 21:11:58,382 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-09-24 21:11:58,383 INFO L87 Difference]: Start difference. First operand 1540 states and 1674 transitions. Second operand 6 states. [2020-09-24 21:11:59,924 WARN L193 SmtUtils]: Spent 633.00 ms on a formula simplification that was a NOOP. DAG size: 318 [2020-09-24 21:12:03,512 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 21:12:03,512 INFO L93 Difference]: Finished difference Result 1838 states and 2037 transitions. [2020-09-24 21:12:03,513 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-09-24 21:12:03,513 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 220 [2020-09-24 21:12:03,514 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 21:12:03,537 INFO L225 Difference]: With dead ends: 1838 [2020-09-24 21:12:03,537 INFO L226 Difference]: Without dead ends: 1835 [2020-09-24 21:12:03,542 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 21:12:03,546 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1835 states. [2020-09-24 21:12:03,771 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1835 to 1539. [2020-09-24 21:12:03,772 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1539 states. [2020-09-24 21:12:03,777 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1539 states to 1539 states and 1672 transitions. [2020-09-24 21:12:03,778 INFO L78 Accepts]: Start accepts. Automaton has 1539 states and 1672 transitions. Word has length 220 [2020-09-24 21:12:03,778 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 21:12:03,779 INFO L479 AbstractCegarLoop]: Abstraction has 1539 states and 1672 transitions. [2020-09-24 21:12:03,779 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-24 21:12:03,779 INFO L276 IsEmpty]: Start isEmpty. Operand 1539 states and 1672 transitions. [2020-09-24 21:12:03,782 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 222 [2020-09-24 21:12:03,782 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 21:12:03,782 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 21:12:03,782 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-24 21:12:03,783 INFO L427 AbstractCegarLoop]: === Iteration 4 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 21:12:03,783 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 21:12:03,783 INFO L82 PathProgramCache]: Analyzing trace with hash -756046291, now seen corresponding path program 1 times [2020-09-24 21:12:03,783 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 21:12:03,784 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [289190856] [2020-09-24 21:12:03,784 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 21:12:03,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat