/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=WIDESTAMONGSMALL --traceabstraction.additional.smt.options tolerance=0.8 --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-64bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--media--usb--b2c2--b2c2-flexcop-usb.ko-main.cil.out.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-25 08:30:43,301 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 08:30:43,305 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 08:30:43,332 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 08:30:43,333 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 08:30:43,334 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 08:30:43,335 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 08:30:43,337 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 08:30:43,339 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 08:30:43,341 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 08:30:43,342 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 08:30:43,343 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 08:30:43,343 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 08:30:43,345 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 08:30:43,346 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 08:30:43,347 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 08:30:43,348 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 08:30:43,349 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 08:30:43,355 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 08:30:43,362 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 08:30:43,364 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 08:30:43,368 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 08:30:43,369 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 08:30:43,371 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 08:30:43,374 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 08:30:43,375 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 08:30:43,375 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 08:30:43,378 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 08:30:43,378 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 08:30:43,381 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 08:30:43,381 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 08:30:43,382 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 08:30:43,383 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 08:30:43,385 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 08:30:43,386 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 08:30:43,386 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 08:30:43,387 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 08:30:43,387 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 08:30:43,388 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 08:30:43,389 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 08:30:43,390 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 08:30:43,391 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-64bit-Automizer_Default.epf [2020-09-25 08:30:43,453 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 08:30:43,453 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 08:30:43,457 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 08:30:43,458 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 08:30:43,458 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 08:30:43,458 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 08:30:43,458 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 08:30:43,459 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 08:30:43,459 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 08:30:43,459 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 08:30:43,459 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 08:30:43,459 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 08:30:43,460 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 08:30:43,460 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 08:30:43,460 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 08:30:43,460 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 08:30:43,460 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 08:30:43,461 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 08:30:43,461 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 08:30:43,461 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 08:30:43,461 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 08:30:43,461 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 08:30:43,462 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 08:30:43,463 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 08:30:43,463 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 08:30:43,463 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 08:30:43,463 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-09-25 08:30:43,463 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=WIDESTAMONGSMALL;tolerance=0.8;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=WIDESTAMONGSMALL;tolerance=0.8;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=WIDESTAMONGSMALL;tolerance=0.8;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=WIDESTAMONGSMALL;tolerance=0.8;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=WIDESTAMONGSMALL;tolerance=0.8;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=WIDESTAMONGSMALL;tolerance=0.8;log-additional-information=true; [2020-09-25 08:30:43,955 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 08:30:43,973 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 08:30:43,978 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 08:30:43,980 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 08:30:43,980 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 08:30:43,981 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--media--usb--b2c2--b2c2-flexcop-usb.ko-main.cil.out.i [2020-09-25 08:30:44,067 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/8135ffbef/c2d363df525e4ff58107afcfc8e76e7e/FLAGc22e0d6a0 [2020-09-25 08:30:45,005 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 08:30:45,006 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--media--usb--b2c2--b2c2-flexcop-usb.ko-main.cil.out.i [2020-09-25 08:30:45,049 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/8135ffbef/c2d363df525e4ff58107afcfc8e76e7e/FLAGc22e0d6a0 [2020-09-25 08:30:45,468 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/8135ffbef/c2d363df525e4ff58107afcfc8e76e7e [2020-09-25 08:30:45,480 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 08:30:45,487 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 08:30:45,488 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 08:30:45,488 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 08:30:45,493 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 08:30:45,494 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 08:30:45" (1/1) ... [2020-09-25 08:30:45,498 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@75883cca and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 08:30:45, skipping insertion in model container [2020-09-25 08:30:45,498 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 08:30:45" (1/1) ... [2020-09-25 08:30:45,508 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 08:30:45,678 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 08:30:47,148 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 08:30:47,185 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 08:30:47,720 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 08:30:47,805 INFO L208 MainTranslator]: Completed translation [2020-09-25 08:30:47,806 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 08:30:47 WrapperNode [2020-09-25 08:30:47,806 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 08:30:47,807 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 08:30:47,808 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 08:30:47,808 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 08:30:47,828 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 08:30:47" (1/1) ... [2020-09-25 08:30:47,828 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 08:30:47" (1/1) ... [2020-09-25 08:30:47,885 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 08:30:47" (1/1) ... [2020-09-25 08:30:47,886 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 08:30:47" (1/1) ... [2020-09-25 08:30:48,214 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 08:30:47" (1/1) ... [2020-09-25 08:30:48,230 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 08:30:47" (1/1) ... [2020-09-25 08:30:48,259 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 08:30:47" (1/1) ... [2020-09-25 08:30:48,318 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 08:30:48,322 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 08:30:48,322 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 08:30:48,322 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 08:30:48,324 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 08:30:47" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 08:30:48,446 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 08:30:48,447 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 08:30:48,447 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~int~X~$Pointer$~X~~gfp_t~0~X~$Pointer$~TO~$Pointer$ [2020-09-25 08:30:48,447 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~int~X~$Pointer$~X~~dma_addr_t~0~X~$Pointer$~TO~VOID [2020-09-25 08:30:48,449 INFO L138 BoogieDeclarations]: Found implementation of procedure arch_local_save_flags [2020-09-25 08:30:48,449 INFO L138 BoogieDeclarations]: Found implementation of procedure arch_irqs_disabled_flags [2020-09-25 08:30:48,450 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_get_intfdata [2020-09-25 08:30:48,450 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_set_intfdata [2020-09-25 08:30:48,450 INFO L138 BoogieDeclarations]: Found implementation of procedure interface_to_usbdev [2020-09-25 08:30:48,451 INFO L138 BoogieDeclarations]: Found implementation of procedure __create_pipe [2020-09-25 08:30:48,452 INFO L138 BoogieDeclarations]: Found implementation of procedure is_device_dma_capable [2020-09-25 08:30:48,452 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2020-09-25 08:30:48,452 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_alloc_coherent_mask [2020-09-25 08:30:48,452 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_alloc_coherent_gfp_flags [2020-09-25 08:30:48,452 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_alloc_attrs [2020-09-25 08:30:48,453 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_free_attrs [2020-09-25 08:30:48,453 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_alloc_consistent [2020-09-25 08:30:48,455 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_free_consistent [2020-09-25 08:30:48,456 INFO L138 BoogieDeclarations]: Found implementation of procedure flexcop_usb_readwrite_dw [2020-09-25 08:30:48,456 INFO L138 BoogieDeclarations]: Found implementation of procedure flexcop_usb_v8_memory_req [2020-09-25 08:30:48,456 INFO L138 BoogieDeclarations]: Found implementation of procedure flexcop_usb_memory_req [2020-09-25 08:30:48,456 INFO L138 BoogieDeclarations]: Found implementation of procedure flexcop_usb_get_mac_addr [2020-09-25 08:30:48,456 INFO L138 BoogieDeclarations]: Found implementation of procedure flexcop_usb_i2c_req [2020-09-25 08:30:48,457 INFO L138 BoogieDeclarations]: Found implementation of procedure flexcop_usb_read_ibi_reg [2020-09-25 08:30:48,457 INFO L138 BoogieDeclarations]: Found implementation of procedure flexcop_usb_write_ibi_reg [2020-09-25 08:30:48,457 INFO L138 BoogieDeclarations]: Found implementation of procedure flexcop_usb_i2c_request [2020-09-25 08:30:48,457 INFO L138 BoogieDeclarations]: Found implementation of procedure flexcop_usb_process_frame [2020-09-25 08:30:48,458 INFO L138 BoogieDeclarations]: Found implementation of procedure flexcop_usb_urb_complete [2020-09-25 08:30:48,458 INFO L138 BoogieDeclarations]: Found implementation of procedure flexcop_usb_stream_control [2020-09-25 08:30:48,458 INFO L138 BoogieDeclarations]: Found implementation of procedure flexcop_usb_transfer_exit [2020-09-25 08:30:48,458 INFO L138 BoogieDeclarations]: Found implementation of procedure flexcop_usb_transfer_init [2020-09-25 08:30:48,458 INFO L138 BoogieDeclarations]: Found implementation of procedure flexcop_usb_init [2020-09-25 08:30:48,459 INFO L138 BoogieDeclarations]: Found implementation of procedure flexcop_usb_exit [2020-09-25 08:30:48,459 INFO L138 BoogieDeclarations]: Found implementation of procedure flexcop_usb_probe [2020-09-25 08:30:48,459 INFO L138 BoogieDeclarations]: Found implementation of procedure flexcop_usb_disconnect [2020-09-25 08:30:48,459 INFO L138 BoogieDeclarations]: Found implementation of procedure flexcop_usb_driver_init [2020-09-25 08:30:48,459 INFO L138 BoogieDeclarations]: Found implementation of procedure flexcop_usb_driver_exit [2020-09-25 08:30:48,460 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 08:30:48,460 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_1 [2020-09-25 08:30:48,460 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_2 [2020-09-25 08:30:48,460 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_3 [2020-09-25 08:30:48,461 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_trylock_4 [2020-09-25 08:30:48,462 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_5 [2020-09-25 08:30:48,462 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_6 [2020-09-25 08:30:48,462 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_7 [2020-09-25 08:30:48,462 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_register_driver_8 [2020-09-25 08:30:48,462 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_deregister_9 [2020-09-25 08:30:48,462 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2020-09-25 08:30:48,463 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2020-09-25 08:30:48,463 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_trap [2020-09-25 08:30:48,463 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_interruptible_cred_guard_mutex_of_signal_struct [2020-09-25 08:30:48,463 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_killable_cred_guard_mutex_of_signal_struct [2020-09-25 08:30:48,463 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_cred_guard_mutex_of_signal_struct [2020-09-25 08:30:48,464 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_trylock_cred_guard_mutex_of_signal_struct [2020-09-25 08:30:48,464 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_dec_and_mutex_lock_cred_guard_mutex_of_signal_struct [2020-09-25 08:30:48,465 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_is_locked_cred_guard_mutex_of_signal_struct [2020-09-25 08:30:48,465 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_cred_guard_mutex_of_signal_struct [2020-09-25 08:30:48,465 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_interruptible_lock [2020-09-25 08:30:48,465 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_killable_lock [2020-09-25 08:30:48,465 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_lock [2020-09-25 08:30:48,466 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_trylock_lock [2020-09-25 08:30:48,466 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_dec_and_mutex_lock_lock [2020-09-25 08:30:48,466 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_is_locked_lock [2020-09-25 08:30:48,466 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_lock [2020-09-25 08:30:48,466 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_interruptible_mutex_of_device [2020-09-25 08:30:48,466 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_killable_mutex_of_device [2020-09-25 08:30:48,467 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_mutex_of_device [2020-09-25 08:30:48,467 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_trylock_mutex_of_device [2020-09-25 08:30:48,467 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_dec_and_mutex_lock_mutex_of_device [2020-09-25 08:30:48,467 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_is_locked_mutex_of_device [2020-09-25 08:30:48,468 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_mutex_of_device [2020-09-25 08:30:48,468 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize [2020-09-25 08:30:48,468 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2020-09-25 08:30:48,469 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_dma_alloc_coherent [2020-09-25 08:30:48,469 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_dma_free_coherent [2020-09-25 08:30:48,470 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2020-09-25 08:30:48,470 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_get_drvdata [2020-09-25 08:30:48,470 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_set_drvdata [2020-09-25 08:30:48,470 INFO L138 BoogieDeclarations]: Found implementation of procedure flexcop_device_exit [2020-09-25 08:30:48,471 INFO L138 BoogieDeclarations]: Found implementation of procedure flexcop_device_initialize [2020-09-25 08:30:48,471 INFO L138 BoogieDeclarations]: Found implementation of procedure flexcop_device_kfree [2020-09-25 08:30:48,471 INFO L138 BoogieDeclarations]: Found implementation of procedure flexcop_device_kmalloc [2020-09-25 08:30:48,471 INFO L138 BoogieDeclarations]: Found implementation of procedure flexcop_pass_dmx_packets [2020-09-25 08:30:48,471 INFO L138 BoogieDeclarations]: Found implementation of procedure flexcop_sram_ctrl [2020-09-25 08:30:48,471 INFO L138 BoogieDeclarations]: Found implementation of procedure flexcop_sram_set_dest [2020-09-25 08:30:48,472 INFO L138 BoogieDeclarations]: Found implementation of procedure flexcop_wan_set_speed [2020-09-25 08:30:48,472 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock [2020-09-25 08:30:48,472 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_trylock [2020-09-25 08:30:48,472 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2020-09-25 08:30:48,472 INFO L138 BoogieDeclarations]: Found implementation of procedure printk [2020-09-25 08:30:48,472 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_alloc_urb [2020-09-25 08:30:48,472 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_control_msg [2020-09-25 08:30:48,472 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_deregister [2020-09-25 08:30:48,473 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_free_urb [2020-09-25 08:30:48,473 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_kill_urb [2020-09-25 08:30:48,474 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_register_driver [2020-09-25 08:30:48,474 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_set_interface [2020-09-25 08:30:48,474 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_submit_urb [2020-09-25 08:30:48,474 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2020-09-25 08:30:48,474 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2020-09-25 08:30:48,475 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2020-09-25 08:30:48,475 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2020-09-25 08:30:48,475 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 08:30:48,475 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2020-09-25 08:30:48,475 INFO L130 BoogieDeclarations]: Found specification of procedure printk [2020-09-25 08:30:48,475 INFO L130 BoogieDeclarations]: Found specification of procedure memset [2020-09-25 08:30:48,476 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2020-09-25 08:30:48,476 INFO L130 BoogieDeclarations]: Found specification of procedure arch_local_save_flags [2020-09-25 08:30:48,476 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-25 08:30:48,476 INFO L130 BoogieDeclarations]: Found specification of procedure arch_irqs_disabled_flags [2020-09-25 08:30:48,476 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_trylock [2020-09-25 08:30:48,476 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_trylock_4 [2020-09-25 08:30:48,477 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2020-09-25 08:30:48,477 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_2 [2020-09-25 08:30:48,477 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_5 [2020-09-25 08:30:48,477 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_7 [2020-09-25 08:30:48,477 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock [2020-09-25 08:30:48,478 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_1 [2020-09-25 08:30:48,478 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_3 [2020-09-25 08:30:48,478 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_6 [2020-09-25 08:30:48,478 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_cred_guard_mutex_of_signal_struct [2020-09-25 08:30:48,479 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_cred_guard_mutex_of_signal_struct [2020-09-25 08:30:48,479 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_lock [2020-09-25 08:30:48,479 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_lock [2020-09-25 08:30:48,479 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_mutex_of_device [2020-09-25 08:30:48,480 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_trylock_mutex_of_device [2020-09-25 08:30:48,480 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_mutex_of_device [2020-09-25 08:30:48,481 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-25 08:30:48,482 INFO L130 BoogieDeclarations]: Found specification of procedure dev_get_drvdata [2020-09-25 08:30:48,485 INFO L130 BoogieDeclarations]: Found specification of procedure dev_set_drvdata [2020-09-25 08:30:48,485 INFO L130 BoogieDeclarations]: Found specification of procedure usb_get_intfdata [2020-09-25 08:30:48,485 INFO L130 BoogieDeclarations]: Found specification of procedure usb_set_intfdata [2020-09-25 08:30:48,486 INFO L130 BoogieDeclarations]: Found specification of procedure interface_to_usbdev [2020-09-25 08:30:48,486 INFO L130 BoogieDeclarations]: Found specification of procedure usb_register_driver [2020-09-25 08:30:48,486 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_register_driver_8 [2020-09-25 08:30:48,487 INFO L130 BoogieDeclarations]: Found specification of procedure usb_deregister [2020-09-25 08:30:48,488 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_deregister_9 [2020-09-25 08:30:48,488 INFO L130 BoogieDeclarations]: Found specification of procedure usb_alloc_urb [2020-09-25 08:30:48,488 INFO L130 BoogieDeclarations]: Found specification of procedure usb_free_urb [2020-09-25 08:30:48,488 INFO L130 BoogieDeclarations]: Found specification of procedure usb_submit_urb [2020-09-25 08:30:48,488 INFO L130 BoogieDeclarations]: Found specification of procedure usb_kill_urb [2020-09-25 08:30:48,488 INFO L130 BoogieDeclarations]: Found specification of procedure usb_control_msg [2020-09-25 08:30:48,489 INFO L130 BoogieDeclarations]: Found specification of procedure usb_set_interface [2020-09-25 08:30:48,489 INFO L130 BoogieDeclarations]: Found specification of procedure __create_pipe [2020-09-25 08:30:48,490 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-25 08:30:48,497 INFO L130 BoogieDeclarations]: Found specification of procedure is_device_dma_capable [2020-09-25 08:30:48,497 INFO L130 BoogieDeclarations]: Found specification of procedure debug_dma_alloc_coherent [2020-09-25 08:30:48,498 INFO L130 BoogieDeclarations]: Found specification of procedure debug_dma_free_coherent [2020-09-25 08:30:48,498 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2020-09-25 08:30:48,498 INFO L130 BoogieDeclarations]: Found specification of procedure dma_alloc_coherent_mask [2020-09-25 08:30:48,498 INFO L130 BoogieDeclarations]: Found specification of procedure dma_alloc_coherent_gfp_flags [2020-09-25 08:30:48,498 INFO L130 BoogieDeclarations]: Found specification of procedure dma_alloc_attrs [2020-09-25 08:30:48,498 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~int~X~$Pointer$~X~~gfp_t~0~X~$Pointer$~TO~$Pointer$ [2020-09-25 08:30:48,498 INFO L130 BoogieDeclarations]: Found specification of procedure dma_free_attrs [2020-09-25 08:30:48,499 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-25 08:30:48,499 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~int~X~$Pointer$~X~~dma_addr_t~0~X~$Pointer$~TO~VOID [2020-09-25 08:30:48,499 INFO L130 BoogieDeclarations]: Found specification of procedure pci_alloc_consistent [2020-09-25 08:30:48,499 INFO L130 BoogieDeclarations]: Found specification of procedure pci_free_consistent [2020-09-25 08:30:48,499 INFO L130 BoogieDeclarations]: Found specification of procedure flexcop_pass_dmx_packets [2020-09-25 08:30:48,499 INFO L130 BoogieDeclarations]: Found specification of procedure flexcop_device_kmalloc [2020-09-25 08:30:48,499 INFO L130 BoogieDeclarations]: Found specification of procedure flexcop_device_kfree [2020-09-25 08:30:48,500 INFO L130 BoogieDeclarations]: Found specification of procedure flexcop_device_initialize [2020-09-25 08:30:48,500 INFO L130 BoogieDeclarations]: Found specification of procedure flexcop_device_exit [2020-09-25 08:30:48,500 INFO L130 BoogieDeclarations]: Found specification of procedure flexcop_sram_set_dest [2020-09-25 08:30:48,501 INFO L130 BoogieDeclarations]: Found specification of procedure flexcop_wan_set_speed [2020-09-25 08:30:48,501 INFO L130 BoogieDeclarations]: Found specification of procedure flexcop_sram_ctrl [2020-09-25 08:30:48,501 INFO L130 BoogieDeclarations]: Found specification of procedure flexcop_usb_readwrite_dw [2020-09-25 08:30:48,501 INFO L130 BoogieDeclarations]: Found specification of procedure flexcop_usb_v8_memory_req [2020-09-25 08:30:48,502 INFO L130 BoogieDeclarations]: Found specification of procedure flexcop_usb_memory_req [2020-09-25 08:30:48,502 INFO L130 BoogieDeclarations]: Found specification of procedure flexcop_usb_get_mac_addr [2020-09-25 08:30:48,502 INFO L130 BoogieDeclarations]: Found specification of procedure flexcop_usb_i2c_req [2020-09-25 08:30:48,502 INFO L130 BoogieDeclarations]: Found specification of procedure flexcop_usb_read_ibi_reg [2020-09-25 08:30:48,503 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-25 08:30:48,503 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-25 08:30:48,503 INFO L130 BoogieDeclarations]: Found specification of procedure flexcop_usb_write_ibi_reg [2020-09-25 08:30:48,503 INFO L130 BoogieDeclarations]: Found specification of procedure flexcop_usb_i2c_request [2020-09-25 08:30:48,503 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy [2020-09-25 08:30:48,503 INFO L130 BoogieDeclarations]: Found specification of procedure flexcop_usb_process_frame [2020-09-25 08:30:48,503 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2020-09-25 08:30:48,504 INFO L130 BoogieDeclarations]: Found specification of procedure flexcop_usb_urb_complete [2020-09-25 08:30:48,504 INFO L130 BoogieDeclarations]: Found specification of procedure flexcop_usb_stream_control [2020-09-25 08:30:48,504 INFO L130 BoogieDeclarations]: Found specification of procedure flexcop_usb_transfer_exit [2020-09-25 08:30:48,504 INFO L130 BoogieDeclarations]: Found specification of procedure flexcop_usb_transfer_init [2020-09-25 08:30:48,504 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-25 08:30:48,504 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2020-09-25 08:30:48,504 INFO L130 BoogieDeclarations]: Found specification of procedure flexcop_usb_init [2020-09-25 08:30:48,504 INFO L130 BoogieDeclarations]: Found specification of procedure flexcop_usb_exit [2020-09-25 08:30:48,505 INFO L130 BoogieDeclarations]: Found specification of procedure flexcop_usb_probe [2020-09-25 08:30:48,505 INFO L130 BoogieDeclarations]: Found specification of procedure flexcop_usb_disconnect [2020-09-25 08:30:48,505 INFO L130 BoogieDeclarations]: Found specification of procedure flexcop_usb_driver_init [2020-09-25 08:30:48,505 INFO L130 BoogieDeclarations]: Found specification of procedure flexcop_usb_driver_exit [2020-09-25 08:30:48,505 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize [2020-09-25 08:30:48,505 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2020-09-25 08:30:48,506 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 08:30:48,506 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2020-09-25 08:30:48,506 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_trap [2020-09-25 08:30:48,506 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_interruptible_cred_guard_mutex_of_signal_struct [2020-09-25 08:30:48,506 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_killable_cred_guard_mutex_of_signal_struct [2020-09-25 08:30:48,506 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_trylock_cred_guard_mutex_of_signal_struct [2020-09-25 08:30:48,507 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_dec_and_mutex_lock_cred_guard_mutex_of_signal_struct [2020-09-25 08:30:48,507 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_is_locked_cred_guard_mutex_of_signal_struct [2020-09-25 08:30:48,507 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_interruptible_lock [2020-09-25 08:30:48,507 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_killable_lock [2020-09-25 08:30:48,507 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_trylock_lock [2020-09-25 08:30:48,507 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_dec_and_mutex_lock_lock [2020-09-25 08:30:48,508 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_is_locked_lock [2020-09-25 08:30:48,508 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_interruptible_mutex_of_device [2020-09-25 08:30:48,508 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_killable_mutex_of_device [2020-09-25 08:30:48,508 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_dec_and_mutex_lock_mutex_of_device [2020-09-25 08:30:48,508 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_is_locked_mutex_of_device [2020-09-25 08:30:48,508 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_bool [2020-09-25 08:30:48,509 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-25 08:30:48,509 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2020-09-25 08:30:48,509 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-25 08:30:48,509 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-25 08:30:48,509 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2020-09-25 08:30:48,509 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 08:30:48,510 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-25 08:30:48,510 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2020-09-25 08:30:48,510 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 08:30:48,510 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2020-09-25 08:30:48,510 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2020-09-25 08:30:48,510 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2020-09-25 08:30:48,510 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2020-09-25 08:30:53,611 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 08:30:53,612 INFO L295 CfgBuilder]: Removed 0 assume(true) statements. [2020-09-25 08:30:53,629 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 08:30:53 BoogieIcfgContainer [2020-09-25 08:30:53,629 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 08:30:53,630 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 08:30:53,630 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 08:30:53,633 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 08:30:53,634 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 08:30:45" (1/3) ... [2020-09-25 08:30:53,634 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@197ed1cb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 08:30:53, skipping insertion in model container [2020-09-25 08:30:53,635 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 08:30:47" (2/3) ... [2020-09-25 08:30:53,635 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@197ed1cb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 08:30:53, skipping insertion in model container [2020-09-25 08:30:53,635 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 08:30:53" (3/3) ... [2020-09-25 08:30:53,637 INFO L109 eAbstractionObserver]: Analyzing ICFG 32_7a_cilled_linux-3.8-rc1-drivers--media--usb--b2c2--b2c2-flexcop-usb.ko-main.cil.out.i [2020-09-25 08:30:53,646 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 08:30:53,656 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 08:30:53,675 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 08:30:53,711 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 08:30:53,711 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 08:30:53,711 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 08:30:53,712 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 08:30:53,712 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 08:30:53,712 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 08:30:53,712 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 08:30:53,712 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 08:30:53,764 INFO L276 IsEmpty]: Start isEmpty. Operand 2184 states. [2020-09-25 08:30:53,782 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 193 [2020-09-25 08:30:53,782 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 08:30:53,784 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 08:30:53,785 INFO L427 AbstractCegarLoop]: === Iteration 1 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 08:30:53,792 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 08:30:53,793 INFO L82 PathProgramCache]: Analyzing trace with hash 2037642771, now seen corresponding path program 1 times [2020-09-25 08:30:53,804 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 08:30:53,805 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1372295055] [2020-09-25 08:30:53,806 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 08:30:54,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:30:54,829 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:30:55,719 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:30:56,863 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:30:56,864 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 211 [2020-09-25 08:30:56,864 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 08:30:56,864 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2331 [2020-09-25 08:30:56,868 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:30:56,868 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 08:30:56,868 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 08:30:56,868 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 162 [2020-09-25 08:30:56,869 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 45 [2020-09-25 08:30:56,869 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-09-25 08:30:58,131 WARN L193 SmtUtils]: Spent 744.00 ms on a formula simplification that was a NOOP. DAG size: 316 [2020-09-25 08:30:58,139 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 08:30:58,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:30:58,255 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:30:58,687 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:30:58,687 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 153 [2020-09-25 08:30:58,687 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:30:58,687 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 511 [2020-09-25 08:30:58,688 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:30:58,688 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 08:30:58,688 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:30:58,688 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:30:58,688 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:30:58,689 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:30:58,973 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2020-09-25 08:30:58,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:30:59,021 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:30:59,186 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:30:59,187 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 08:30:59,187 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:30:59,187 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 203 [2020-09-25 08:30:59,188 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:30:59,188 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 08:30:59,188 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 08:30:59,188 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:30:59,189 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-09-25 08:30:59,189 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:30:59,282 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2020-09-25 08:30:59,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:30:59,332 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:30:59,505 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:30:59,506 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-09-25 08:30:59,506 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:30:59,506 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 210 [2020-09-25 08:30:59,506 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:30:59,507 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 08:30:59,507 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 08:30:59,507 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:30:59,507 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 17 [2020-09-25 08:30:59,508 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:30:59,566 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 08:30:59,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:30:59,601 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:30:59,732 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:30:59,733 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-09-25 08:30:59,733 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:30:59,734 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 162 [2020-09-25 08:30:59,734 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:30:59,734 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 08:30:59,735 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:30:59,735 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:30:59,735 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:30:59,736 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:30:59,783 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-25 08:30:59,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:30:59,816 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:30:59,882 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:30:59,883 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 08:30:59,883 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:30:59,883 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 97 [2020-09-25 08:30:59,884 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:30:59,885 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 08:30:59,885 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:30:59,886 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:30:59,886 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:30:59,886 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 08:31:00,002 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 08:31:00,003 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1372295055] [2020-09-25 08:31:00,005 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 08:31:00,005 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-09-25 08:31:00,006 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [65014099] [2020-09-25 08:31:00,013 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-25 08:31:00,015 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 08:31:00,032 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-25 08:31:00,035 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-09-25 08:31:00,037 INFO L87 Difference]: Start difference. First operand 2184 states. Second operand 6 states. [2020-09-25 08:31:01,843 WARN L193 SmtUtils]: Spent 778.00 ms on a formula simplification that was a NOOP. DAG size: 318 [2020-09-25 08:31:06,080 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 08:31:06,080 INFO L93 Difference]: Finished difference Result 1052 states and 1161 transitions. [2020-09-25 08:31:06,081 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-09-25 08:31:06,082 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 192 [2020-09-25 08:31:06,084 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 08:31:06,107 INFO L225 Difference]: With dead ends: 1052 [2020-09-25 08:31:06,108 INFO L226 Difference]: Without dead ends: 1028 [2020-09-25 08:31:06,113 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=42, Invalid=68, Unknown=0, NotChecked=0, Total=110 [2020-09-25 08:31:06,133 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1028 states. [2020-09-25 08:31:06,283 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1028 to 880. [2020-09-25 08:31:06,284 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 880 states. [2020-09-25 08:31:06,290 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 880 states to 880 states and 948 transitions. [2020-09-25 08:31:06,292 INFO L78 Accepts]: Start accepts. Automaton has 880 states and 948 transitions. Word has length 192 [2020-09-25 08:31:06,293 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 08:31:06,293 INFO L479 AbstractCegarLoop]: Abstraction has 880 states and 948 transitions. [2020-09-25 08:31:06,293 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-25 08:31:06,294 INFO L276 IsEmpty]: Start isEmpty. Operand 880 states and 948 transitions. [2020-09-25 08:31:06,298 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 194 [2020-09-25 08:31:06,299 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 08:31:06,299 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] [2020-09-25 08:31:06,299 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 08:31:06,300 INFO L427 AbstractCegarLoop]: === Iteration 2 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 08:31:06,300 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 08:31:06,300 INFO L82 PathProgramCache]: Analyzing trace with hash -1258462011, now seen corresponding path program 1 times [2020-09-25 08:31:06,300 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 08:31:06,301 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1991039436] [2020-09-25 08:31:06,301 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 08:31:06,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:31:06,616 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:31:07,163 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:31:08,074 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:31:08,075 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 212 [2020-09-25 08:31:08,076 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 08:31:08,076 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1629 [2020-09-25 08:31:08,076 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:31:08,077 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 08:31:08,077 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 08:31:08,078 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 163 [2020-09-25 08:31:08,078 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 45 [2020-09-25 08:31:08,078 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:31:09,182 WARN L193 SmtUtils]: Spent 706.00 ms on a formula simplification that was a NOOP. DAG size: 316 [2020-09-25 08:31:09,183 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 08:31:09,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:31:09,258 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:31:09,580 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:31:09,581 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 153 [2020-09-25 08:31:09,581 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:31:09,581 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 382 [2020-09-25 08:31:09,581 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:31:09,582 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 08:31:09,582 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:31:09,582 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:31:09,583 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:31:09,583 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:31:09,775 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2020-09-25 08:31:09,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:31:09,812 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:31:09,999 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:31:10,000 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 08:31:10,000 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:31:10,001 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 215 [2020-09-25 08:31:10,001 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:31:10,001 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 08:31:10,002 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 08:31:10,002 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:31:10,003 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-25 08:31:10,003 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:31:10,094 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2020-09-25 08:31:10,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:31:10,138 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:31:10,300 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:31:10,301 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-09-25 08:31:10,301 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:31:10,302 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 196 [2020-09-25 08:31:10,302 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:31:10,302 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 08:31:10,303 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 08:31:10,303 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:31:10,304 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 17 [2020-09-25 08:31:10,304 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:31:10,358 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 08:31:10,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:31:10,385 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:31:10,454 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:31:10,454 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-09-25 08:31:10,454 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:31:10,454 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 93 [2020-09-25 08:31:10,455 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:31:10,455 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 08:31:10,455 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:31:10,455 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:31:10,456 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:31:10,456 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:31:10,495 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-25 08:31:10,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:31:10,519 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:31:10,547 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:31:10,548 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 08:31:10,548 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:31:10,548 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 50 [2020-09-25 08:31:10,548 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:31:10,549 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 08:31:10,549 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:31:10,549 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:31:10,549 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:31:10,550 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:31:10,638 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 08:31:10,638 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1991039436] [2020-09-25 08:31:10,639 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 08:31:10,639 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-09-25 08:31:10,639 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1464705157] [2020-09-25 08:31:10,641 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-25 08:31:10,642 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 08:31:10,642 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-25 08:31:10,642 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-09-25 08:31:10,642 INFO L87 Difference]: Start difference. First operand 880 states and 948 transitions. Second operand 6 states. [2020-09-25 08:31:12,273 WARN L193 SmtUtils]: Spent 783.00 ms on a formula simplification that was a NOOP. DAG size: 318 [2020-09-25 08:31:16,162 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 08:31:16,162 INFO L93 Difference]: Finished difference Result 1030 states and 1130 transitions. [2020-09-25 08:31:16,163 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-09-25 08:31:16,163 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 193 [2020-09-25 08:31:16,165 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 08:31:16,170 INFO L225 Difference]: With dead ends: 1030 [2020-09-25 08:31:16,170 INFO L226 Difference]: Without dead ends: 1027 [2020-09-25 08:31:16,173 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=42, Invalid=68, Unknown=0, NotChecked=0, Total=110 [2020-09-25 08:31:16,175 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1027 states. [2020-09-25 08:31:16,279 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1027 to 879. [2020-09-25 08:31:16,279 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 879 states. [2020-09-25 08:31:16,284 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 879 states to 879 states and 946 transitions. [2020-09-25 08:31:16,285 INFO L78 Accepts]: Start accepts. Automaton has 879 states and 946 transitions. Word has length 193 [2020-09-25 08:31:16,285 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 08:31:16,285 INFO L479 AbstractCegarLoop]: Abstraction has 879 states and 946 transitions. [2020-09-25 08:31:16,286 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-25 08:31:16,286 INFO L276 IsEmpty]: Start isEmpty. Operand 879 states and 946 transitions. [2020-09-25 08:31:16,288 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 195 [2020-09-25 08:31:16,288 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 08:31:16,289 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] [2020-09-25 08:31:16,289 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 08:31:16,290 INFO L427 AbstractCegarLoop]: === Iteration 3 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 08:31:16,290 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 08:31:16,290 INFO L82 PathProgramCache]: Analyzing trace with hash -358490282, now seen corresponding path program 1 times [2020-09-25 08:31:16,290 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 08:31:16,291 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1332674830] [2020-09-25 08:31:16,291 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 08:31:16,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:31:16,679 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:31:17,213 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:31:18,043 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:31:18,043 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 213 [2020-09-25 08:31:18,044 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 08:31:18,044 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1536 [2020-09-25 08:31:18,044 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:31:18,044 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 08:31:18,045 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 08:31:18,045 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 164 [2020-09-25 08:31:18,045 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 45 [2020-09-25 08:31:18,045 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:31:19,176 WARN L193 SmtUtils]: Spent 749.00 ms on a formula simplification that was a NOOP. DAG size: 316 [2020-09-25 08:31:19,177 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 08:31:19,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:31:19,290 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:31:19,604 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:31:19,604 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 153 [2020-09-25 08:31:19,605 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:31:19,605 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 412 [2020-09-25 08:31:19,605 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:31:19,605 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 08:31:19,605 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:31:19,606 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:31:19,606 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:31:19,606 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:31:19,784 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2020-09-25 08:31:19,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:31:19,819 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:31:19,948 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:31:19,949 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 08:31:19,949 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:31:19,949 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 156 [2020-09-25 08:31:19,949 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:31:19,949 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 08:31:19,950 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 08:31:19,950 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:31:19,950 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 08:31:19,950 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:31:20,027 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2020-09-25 08:31:20,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:31:20,064 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:31:20,194 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:31:20,195 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-09-25 08:31:20,195 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:31:20,195 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 158 [2020-09-25 08:31:20,195 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:31:20,196 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 08:31:20,196 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 08:31:20,196 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:31:20,196 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 17 [2020-09-25 08:31:20,197 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:31:20,240 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 08:31:20,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:31:20,265 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:31:20,307 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:31:20,308 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-09-25 08:31:20,308 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:31:20,308 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 65 [2020-09-25 08:31:20,308 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:31:20,308 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 08:31:20,309 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:31:20,309 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:31:20,309 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:31:20,309 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:31:20,348 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-25 08:31:20,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:31:20,372 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:31:20,428 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:31:20,428 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 08:31:20,428 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:31:20,428 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 78 [2020-09-25 08:31:20,429 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:31:20,429 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 08:31:20,429 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:31:20,429 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:31:20,430 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:31:20,430 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:31:20,513 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 08:31:20,514 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1332674830] [2020-09-25 08:31:20,515 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 08:31:20,515 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-09-25 08:31:20,515 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1168851569] [2020-09-25 08:31:20,516 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-25 08:31:20,516 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 08:31:20,516 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-25 08:31:20,517 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-09-25 08:31:20,517 INFO L87 Difference]: Start difference. First operand 879 states and 946 transitions. Second operand 6 states. [2020-09-25 08:31:22,244 WARN L193 SmtUtils]: Spent 807.00 ms on a formula simplification that was a NOOP. DAG size: 318 [2020-09-25 08:31:26,324 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 08:31:26,325 INFO L93 Difference]: Finished difference Result 1027 states and 1127 transitions. [2020-09-25 08:31:26,326 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-09-25 08:31:26,326 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 194 [2020-09-25 08:31:26,327 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 08:31:26,327 INFO L225 Difference]: With dead ends: 1027 [2020-09-25 08:31:26,327 INFO L226 Difference]: Without dead ends: 0 [2020-09-25 08:31:26,333 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=42, Invalid=68, Unknown=0, NotChecked=0, Total=110 [2020-09-25 08:31:26,333 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-09-25 08:31:26,333 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-09-25 08:31:26,334 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-09-25 08:31:26,334 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-09-25 08:31:26,334 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 194 [2020-09-25 08:31:26,334 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 08:31:26,334 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-09-25 08:31:26,335 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-25 08:31:26,335 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-09-25 08:31:26,335 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-09-25 08:31:26,335 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-25 08:31:26,338 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-09-25 08:31:26,861 WARN L193 SmtUtils]: Spent 512.00 ms on a formula simplification that was a NOOP. DAG size: 320 [2020-09-25 08:31:27,326 WARN L193 SmtUtils]: Spent 464.00 ms on a formula simplification that was a NOOP. DAG size: 320 [2020-09-25 08:31:27,780 WARN L193 SmtUtils]: Spent 453.00 ms on a formula simplification that was a NOOP. DAG size: 320 [2020-09-25 08:31:28,229 WARN L193 SmtUtils]: Spent 447.00 ms on a formula simplification that was a NOOP. DAG size: 320 [2020-09-25 08:31:28,671 WARN L193 SmtUtils]: Spent 441.00 ms on a formula simplification that was a NOOP. DAG size: 320 [2020-09-25 08:31:29,125 WARN L193 SmtUtils]: Spent 452.00 ms on a formula simplification that was a NOOP. DAG size: 320 [2020-09-25 08:31:29,553 WARN L193 SmtUtils]: Spent 427.00 ms on a formula simplification that was a NOOP. DAG size: 320 [2020-09-25 08:31:29,981 WARN L193 SmtUtils]: Spent 427.00 ms on a formula simplification that was a NOOP. DAG size: 320 [2020-09-25 08:31:30,411 WARN L193 SmtUtils]: Spent 428.00 ms on a formula simplification that was a NOOP. DAG size: 320 [2020-09-25 08:31:30,841 WARN L193 SmtUtils]: Spent 429.00 ms on a formula simplification that was a NOOP. DAG size: 320 [2020-09-25 08:31:31,272 WARN L193 SmtUtils]: Spent 429.00 ms on a formula simplification that was a NOOP. DAG size: 320 [2020-09-25 08:31:31,708 WARN L193 SmtUtils]: Spent 434.00 ms on a formula simplification. DAG size of input: 328 DAG size of output: 19 [2020-09-25 08:31:32,144 WARN L193 SmtUtils]: Spent 434.00 ms on a formula simplification. DAG size of input: 328 DAG size of output: 19 [2020-09-25 08:31:32,562 WARN L193 SmtUtils]: Spent 417.00 ms on a formula simplification. DAG size of input: 328 DAG size of output: 19 [2020-09-25 08:31:32,963 WARN L193 SmtUtils]: Spent 400.00 ms on a formula simplification. DAG size of input: 328 DAG size of output: 19 [2020-09-25 08:31:33,367 WARN L193 SmtUtils]: Spent 402.00 ms on a formula simplification. DAG size of input: 328 DAG size of output: 19 [2020-09-25 08:31:33,801 WARN L193 SmtUtils]: Spent 433.00 ms on a formula simplification that was a NOOP. DAG size: 320 [2020-09-25 08:31:34,230 WARN L193 SmtUtils]: Spent 427.00 ms on a formula simplification that was a NOOP. DAG size: 320 [2020-09-25 08:31:34,659 WARN L193 SmtUtils]: Spent 427.00 ms on a formula simplification that was a NOOP. DAG size: 320 [2020-09-25 08:31:35,085 WARN L193 SmtUtils]: Spent 425.00 ms on a formula simplification that was a NOOP. DAG size: 320 [2020-09-25 08:31:35,513 WARN L193 SmtUtils]: Spent 427.00 ms on a formula simplification that was a NOOP. DAG size: 320 [2020-09-25 08:31:35,944 WARN L193 SmtUtils]: Spent 430.00 ms on a formula simplification that was a NOOP. DAG size: 320 [2020-09-25 08:31:36,370 WARN L193 SmtUtils]: Spent 424.00 ms on a formula simplification that was a NOOP. DAG size: 320 [2020-09-25 08:31:36,797 WARN L193 SmtUtils]: Spent 426.00 ms on a formula simplification that was a NOOP. DAG size: 320 [2020-09-25 08:31:37,223 WARN L193 SmtUtils]: Spent 425.00 ms on a formula simplification that was a NOOP. DAG size: 320 [2020-09-25 08:31:37,650 WARN L193 SmtUtils]: Spent 426.00 ms on a formula simplification that was a NOOP. DAG size: 320 [2020-09-25 08:31:38,077 WARN L193 SmtUtils]: Spent 426.00 ms on a formula simplification that was a NOOP. DAG size: 320