/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=1000 --traceabstraction.additional.smt.options interpolation-heuristic=SMALLEST --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-linux-3.16-rc1/205_9a_array_safes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--ethernet--cadence--at91_ether.ko-entry_point.cil.out.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-24 20:03:17,327 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-24 20:03:17,331 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-24 20:03:17,376 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-24 20:03:17,377 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-24 20:03:17,389 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-24 20:03:17,391 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-24 20:03:17,395 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-24 20:03:17,398 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-24 20:03:17,402 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-24 20:03:17,403 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-24 20:03:17,404 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-24 20:03:17,405 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-24 20:03:17,408 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-24 20:03:17,411 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-24 20:03:17,413 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-24 20:03:17,415 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-24 20:03:17,416 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-24 20:03:17,418 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-24 20:03:17,420 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-24 20:03:17,421 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-24 20:03:17,422 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-24 20:03:17,424 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-24 20:03:17,425 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-24 20:03:17,427 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-24 20:03:17,428 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-24 20:03:17,428 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-24 20:03:17,429 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-24 20:03:17,430 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-24 20:03:17,431 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-24 20:03:17,431 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-24 20:03:17,432 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-24 20:03:17,433 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-24 20:03:17,434 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-24 20:03:17,435 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-24 20:03:17,435 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-24 20:03:17,436 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-24 20:03:17,436 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-24 20:03:17,436 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-24 20:03:17,437 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-24 20:03:17,438 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-24 20:03:17,439 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 20:03:17,466 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-24 20:03:17,466 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-24 20:03:17,468 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-24 20:03:17,468 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-24 20:03:17,468 INFO L138 SettingsManager]: * Use SBE=true [2020-09-24 20:03:17,468 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-24 20:03:17,469 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-24 20:03:17,469 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-24 20:03:17,469 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-24 20:03:17,469 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-24 20:03:17,469 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-24 20:03:17,470 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-24 20:03:17,470 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-24 20:03:17,470 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-24 20:03:17,470 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-24 20:03:17,470 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-24 20:03:17,471 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-24 20:03:17,471 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-24 20:03:17,471 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-24 20:03:17,471 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-24 20:03:17,472 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-24 20:03:17,472 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-24 20:03:17,472 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-24 20:03:17,472 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-24 20:03:17,472 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-24 20:03:17,473 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-24 20:03:17,473 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-09-24 20:03:17,473 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=1000;interpolation-heuristic=SMALLEST;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=1000;interpolation-heuristic=SMALLEST;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=1000;interpolation-heuristic=SMALLEST;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=1000;interpolation-heuristic=SMALLEST;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=1000;interpolation-heuristic=SMALLEST;log-additional-information=true; [2020-09-24 20:03:17,940 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-24 20:03:17,966 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-24 20:03:17,972 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-24 20:03:17,975 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-24 20:03:17,975 INFO L275 PluginConnector]: CDTParser initialized [2020-09-24 20:03:17,977 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-linux-3.16-rc1/205_9a_array_safes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--ethernet--cadence--at91_ether.ko-entry_point.cil.out.i [2020-09-24 20:03:18,072 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/d43e2eb7c/d258ed7215284f30b458ffae6d83f8b1/FLAG615515530 [2020-09-24 20:03:18,943 INFO L306 CDTParser]: Found 1 translation units. [2020-09-24 20:03:18,944 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/ldv-linux-3.16-rc1/205_9a_array_safes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--ethernet--cadence--at91_ether.ko-entry_point.cil.out.i [2020-09-24 20:03:18,995 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/d43e2eb7c/d258ed7215284f30b458ffae6d83f8b1/FLAG615515530 [2020-09-24 20:03:19,463 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/d43e2eb7c/d258ed7215284f30b458ffae6d83f8b1 [2020-09-24 20:03:19,476 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-24 20:03:19,481 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-24 20:03:19,483 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-24 20:03:19,483 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-24 20:03:19,488 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-24 20:03:19,489 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 08:03:19" (1/1) ... [2020-09-24 20:03:19,494 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5fbdf966 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 08:03:19, skipping insertion in model container [2020-09-24 20:03:19,494 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 08:03:19" (1/1) ... [2020-09-24 20:03:19,504 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-24 20:03:19,626 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-24 20:03:21,500 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 20:03:21,528 INFO L203 MainTranslator]: Completed pre-run [2020-09-24 20:03:21,895 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 20:03:22,253 INFO L208 MainTranslator]: Completed translation [2020-09-24 20:03:22,255 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 08:03:22 WrapperNode [2020-09-24 20:03:22,255 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-24 20:03:22,256 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-24 20:03:22,256 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-24 20:03:22,256 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-24 20:03:22,273 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 08:03:22" (1/1) ... [2020-09-24 20:03:22,274 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 08:03:22" (1/1) ... [2020-09-24 20:03:22,327 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 08:03:22" (1/1) ... [2020-09-24 20:03:22,327 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 08:03:22" (1/1) ... [2020-09-24 20:03:22,477 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 08:03:22" (1/1) ... [2020-09-24 20:03:22,504 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 08:03:22" (1/1) ... [2020-09-24 20:03:22,542 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 08:03:22" (1/1) ... [2020-09-24 20:03:22,568 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-24 20:03:22,569 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-24 20:03:22,569 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-24 20:03:22,569 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-24 20:03:22,571 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 08:03:22" (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 20:03:22,675 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-24 20:03:22,676 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-24 20:03:22,677 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~int~X~int~X~int~X~$Pointer$~TO~~dma_addr_t~0 [2020-09-24 20:03:22,677 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~int~X~int~X~$Pointer$~TO~VOID [2020-09-24 20:03:22,678 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~int~X~$Pointer$~X~~gfp_t~0~X~$Pointer$~TO~$Pointer$ [2020-09-24 20:03:22,678 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 20:03:22,679 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2020-09-24 20:03:22,679 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_bit [2020-09-24 20:03:22,680 INFO L138 BoogieDeclarations]: Found implementation of procedure test_and_clear_bit [2020-09-24 20:03:22,680 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2020-09-24 20:03:22,682 INFO L138 BoogieDeclarations]: Found implementation of procedure arch_local_save_flags [2020-09-24 20:03:22,682 INFO L138 BoogieDeclarations]: Found implementation of procedure arch_local_irq_restore [2020-09-24 20:03:22,682 INFO L138 BoogieDeclarations]: Found implementation of procedure arch_local_irq_disable [2020-09-24 20:03:22,683 INFO L138 BoogieDeclarations]: Found implementation of procedure arch_local_irq_save [2020-09-24 20:03:22,683 INFO L138 BoogieDeclarations]: Found implementation of procedure arch_irqs_disabled_flags [2020-09-24 20:03:22,683 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2020-09-24 20:03:22,683 INFO L138 BoogieDeclarations]: Found implementation of procedure resource_size [2020-09-24 20:03:22,691 INFO L138 BoogieDeclarations]: Found implementation of procedure __readl [2020-09-24 20:03:22,692 INFO L138 BoogieDeclarations]: Found implementation of procedure __writel [2020-09-24 20:03:22,692 INFO L138 BoogieDeclarations]: Found implementation of procedure kmemcheck_mark_initialized [2020-09-24 20:03:22,692 INFO L138 BoogieDeclarations]: Found implementation of procedure kobject_name [2020-09-24 20:03:22,692 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_name [2020-09-24 20:03:22,693 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_get_drvdata [2020-09-24 20:03:22,693 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_set_drvdata [2020-09-24 20:03:22,693 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_get_platdata [2020-09-24 20:03:22,693 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2020-09-24 20:03:22,694 INFO L138 BoogieDeclarations]: Found implementation of procedure is_device_dma_capable [2020-09-24 20:03:22,694 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2020-09-24 20:03:22,694 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_map_single_attrs [2020-09-24 20:03:22,694 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_unmap_single_attrs [2020-09-24 20:03:22,694 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_alloc_coherent_mask [2020-09-24 20:03:22,695 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_alloc_coherent_gfp_flags [2020-09-24 20:03:22,695 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_alloc_attrs [2020-09-24 20:03:22,695 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_free_attrs [2020-09-24 20:03:22,695 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_reserve [2020-09-24 20:03:22,696 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-09-24 20:03:22,696 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2020-09-24 20:03:22,696 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2020-09-24 20:03:22,696 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2020-09-24 20:03:22,696 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_ulong [2020-09-24 20:03:22,697 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2020-09-24 20:03:22,697 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2020-09-24 20:03:22,697 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2020-09-24 20:03:22,698 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_trap [2020-09-24 20:03:22,698 INFO L138 BoogieDeclarations]: Found implementation of procedure devm_request_irq [2020-09-24 20:03:22,699 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2020-09-24 20:03:22,699 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2020-09-24 20:03:22,699 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_start_queue [2020-09-24 20:03:22,699 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_start_queue [2020-09-24 20:03:22,699 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_wake_queue [2020-09-24 20:03:22,699 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2020-09-24 20:03:22,700 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_stop_queue [2020-09-24 20:03:22,700 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2020-09-24 20:03:22,700 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_running [2020-09-24 20:03:22,701 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_kfree_skb_irq [2020-09-24 20:03:22,701 INFO L138 BoogieDeclarations]: Found implementation of procedure platform_get_drvdata [2020-09-24 20:03:22,701 INFO L138 BoogieDeclarations]: Found implementation of procedure platform_set_drvdata [2020-09-24 20:03:22,701 INFO L138 BoogieDeclarations]: Found implementation of procedure of_get_phy_mode [2020-09-24 20:03:22,702 INFO L138 BoogieDeclarations]: Found implementation of procedure of_get_mac_address [2020-09-24 20:03:22,702 INFO L138 BoogieDeclarations]: Found implementation of procedure at91ether_start [2020-09-24 20:03:22,702 INFO L138 BoogieDeclarations]: Found implementation of procedure at91ether_open [2020-09-24 20:03:22,702 INFO L138 BoogieDeclarations]: Found implementation of procedure at91ether_close [2020-09-24 20:03:22,702 INFO L138 BoogieDeclarations]: Found implementation of procedure at91ether_start_xmit [2020-09-24 20:03:22,703 INFO L138 BoogieDeclarations]: Found implementation of procedure at91ether_rx [2020-09-24 20:03:22,703 INFO L138 BoogieDeclarations]: Found implementation of procedure at91ether_interrupt [2020-09-24 20:03:22,703 INFO L138 BoogieDeclarations]: Found implementation of procedure at91ether_poll_controller [2020-09-24 20:03:22,703 INFO L138 BoogieDeclarations]: Found implementation of procedure at91ether_probe [2020-09-24 20:03:22,703 INFO L138 BoogieDeclarations]: Found implementation of procedure at91ether_remove [2020-09-24 20:03:22,703 INFO L138 BoogieDeclarations]: Found implementation of procedure at91ether_suspend [2020-09-24 20:03:22,703 INFO L138 BoogieDeclarations]: Found implementation of procedure at91ether_resume [2020-09-24 20:03:22,704 INFO L138 BoogieDeclarations]: Found implementation of procedure at91ether_driver_init [2020-09-24 20:03:22,704 INFO L138 BoogieDeclarations]: Found implementation of procedure at91ether_driver_exit [2020-09-24 20:03:22,704 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize_platform_driver_1 [2020-09-24 20:03:22,705 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_net_device_ops_2 [2020-09-24 20:03:22,707 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-24 20:03:22,707 INFO L138 BoogieDeclarations]: Found implementation of procedure ERR_PTR [2020-09-24 20:03:22,707 INFO L138 BoogieDeclarations]: Found implementation of procedure PTR_ERR [2020-09-24 20:03:22,707 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2020-09-24 20:03:22,707 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_consume_skb_5 [2020-09-24 20:03:22,708 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kfree_skb_6 [2020-09-24 20:03:22,709 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kfree_skb_7 [2020-09-24 20:03:22,709 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kfree_skb_8 [2020-09-24 20:03:22,710 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kfree_skb_11 [2020-09-24 20:03:22,710 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_netdev_alloc_skb_12 [2020-09-24 20:03:22,710 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_netif_rx_13 [2020-09-24 20:03:22,711 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_register_netdev_14 [2020-09-24 20:03:22,711 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_unregister_netdev_15 [2020-09-24 20:03:22,711 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_netdev_16 [2020-09-24 20:03:22,711 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_unregister_netdev_17 [2020-09-24 20:03:22,711 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_netdev_18 [2020-09-24 20:03:22,712 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_set_init [2020-09-24 20:03:22,712 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_set_add [2020-09-24 20:03:22,712 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_set_remove [2020-09-24 20:03:22,712 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_set_contains [2020-09-24 20:03:22,712 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_set_is_empty [2020-09-24 20:03:22,713 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2020-09-24 20:03:22,713 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_err_ptr [2020-09-24 20:03:22,713 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_ptr_err [2020-09-24 20:03:22,713 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err_or_null [2020-09-24 20:03:22,713 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_skb_alloc [2020-09-24 20:03:22,714 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize [2020-09-24 20:03:22,714 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_skb_free [2020-09-24 20:03:22,714 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_skb_free_int [2020-09-24 20:03:22,714 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_alloc_skb [2020-09-24 20:03:22,715 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_netdev_alloc_skb [2020-09-24 20:03:22,715 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_skb_current [2020-09-24 20:03:22,715 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2020-09-24 20:03:22,715 INFO L138 BoogieDeclarations]: Found implementation of procedure __dev_kfree_skb_irq [2020-09-24 20:03:22,715 INFO L138 BoogieDeclarations]: Found implementation of procedure __netif_schedule [2020-09-24 20:03:22,716 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2020-09-24 20:03:22,716 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2020-09-24 20:03:22,716 INFO L138 BoogieDeclarations]: Found implementation of procedure alloc_etherdev_mqs [2020-09-24 20:03:22,716 INFO L138 BoogieDeclarations]: Found implementation of procedure clk_disable [2020-09-24 20:03:22,717 INFO L138 BoogieDeclarations]: Found implementation of procedure clk_enable [2020-09-24 20:03:22,717 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_dma_alloc_coherent [2020-09-24 20:03:22,717 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_dma_free_coherent [2020-09-24 20:03:22,717 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_dma_map_page [2020-09-24 20:03:22,718 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_dma_unmap_page [2020-09-24 20:03:22,718 INFO L138 BoogieDeclarations]: Found implementation of procedure devm_clk_get [2020-09-24 20:03:22,718 INFO L138 BoogieDeclarations]: Found implementation of procedure devm_ioremap [2020-09-24 20:03:22,719 INFO L138 BoogieDeclarations]: Found implementation of procedure devm_request_threaded_irq [2020-09-24 20:03:22,720 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_change_mtu [2020-09-24 20:03:22,720 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_mac_addr [2020-09-24 20:03:22,720 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_type_trans [2020-09-24 20:03:22,720 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_validate_addr [2020-09-24 20:03:22,721 INFO L138 BoogieDeclarations]: Found implementation of procedure ether_setup [2020-09-24 20:03:22,721 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2020-09-24 20:03:22,721 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_ndo_init_2 [2020-09-24 20:03:22,722 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_ndo_uninit_2 [2020-09-24 20:03:22,723 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_probe_1 [2020-09-24 20:03:22,726 INFO L138 BoogieDeclarations]: Found implementation of procedure macb_get_hwaddr [2020-09-24 20:03:22,726 INFO L138 BoogieDeclarations]: Found implementation of procedure macb_get_stats [2020-09-24 20:03:22,727 INFO L138 BoogieDeclarations]: Found implementation of procedure macb_ioctl [2020-09-24 20:03:22,727 INFO L138 BoogieDeclarations]: Found implementation of procedure macb_mii_init [2020-09-24 20:03:22,727 INFO L138 BoogieDeclarations]: Found implementation of procedure macb_set_hwaddr [2020-09-24 20:03:22,727 INFO L138 BoogieDeclarations]: Found implementation of procedure macb_set_rx_mode [2020-09-24 20:03:22,727 INFO L138 BoogieDeclarations]: Found implementation of procedure mdiobus_free [2020-09-24 20:03:22,728 INFO L138 BoogieDeclarations]: Found implementation of procedure mdiobus_unregister [2020-09-24 20:03:22,728 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_err [2020-09-24 20:03:22,728 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_info [2020-09-24 20:03:22,728 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_off [2020-09-24 20:03:22,729 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_device_attach [2020-09-24 20:03:22,729 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_device_detach [2020-09-24 20:03:22,729 INFO L138 BoogieDeclarations]: Found implementation of procedure phy_disconnect [2020-09-24 20:03:22,730 INFO L138 BoogieDeclarations]: Found implementation of procedure phy_start [2020-09-24 20:03:22,737 INFO L138 BoogieDeclarations]: Found implementation of procedure platform_driver_probe [2020-09-24 20:03:22,739 INFO L138 BoogieDeclarations]: Found implementation of procedure platform_driver_unregister [2020-09-24 20:03:22,739 INFO L138 BoogieDeclarations]: Found implementation of procedure platform_get_irq [2020-09-24 20:03:22,739 INFO L138 BoogieDeclarations]: Found implementation of procedure platform_get_resource [2020-09-24 20:03:22,739 INFO L138 BoogieDeclarations]: Found implementation of procedure printk [2020-09-24 20:03:22,739 INFO L138 BoogieDeclarations]: Found implementation of procedure register_netdev [2020-09-24 20:03:22,740 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_put [2020-09-24 20:03:22,740 INFO L138 BoogieDeclarations]: Found implementation of procedure trace_hardirqs_off [2020-09-24 20:03:22,740 INFO L138 BoogieDeclarations]: Found implementation of procedure trace_hardirqs_on [2020-09-24 20:03:22,740 INFO L138 BoogieDeclarations]: Found implementation of procedure unregister_netdev [2020-09-24 20:03:22,740 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2020-09-24 20:03:22,741 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2020-09-24 20:03:22,741 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2020-09-24 20:03:22,741 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2020-09-24 20:03:22,741 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2020-09-24 20:03:22,742 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-24 20:03:22,742 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2020-09-24 20:03:22,742 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2020-09-24 20:03:22,742 INFO L130 BoogieDeclarations]: Found specification of procedure clear_bit [2020-09-24 20:03:22,742 INFO L130 BoogieDeclarations]: Found specification of procedure test_and_clear_bit [2020-09-24 20:03:22,743 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2020-09-24 20:03:22,743 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-24 20:03:22,743 INFO L130 BoogieDeclarations]: Found specification of procedure printk [2020-09-24 20:03:22,743 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2020-09-24 20:03:22,743 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_err_ptr [2020-09-24 20:03:22,743 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_ptr_err [2020-09-24 20:03:22,744 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2020-09-24 20:03:22,744 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2020-09-24 20:03:22,744 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy [2020-09-24 20:03:22,744 INFO L130 BoogieDeclarations]: Found specification of procedure memset [2020-09-24 20:03:22,745 INFO L130 BoogieDeclarations]: Found specification of procedure arch_local_save_flags [2020-09-24 20:03:22,745 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-24 20:03:22,745 INFO L130 BoogieDeclarations]: Found specification of procedure arch_local_irq_restore [2020-09-24 20:03:22,745 INFO L130 BoogieDeclarations]: Found specification of procedure arch_local_irq_disable [2020-09-24 20:03:22,745 INFO L130 BoogieDeclarations]: Found specification of procedure arch_local_irq_save [2020-09-24 20:03:22,746 INFO L130 BoogieDeclarations]: Found specification of procedure ERR_PTR [2020-09-24 20:03:22,746 INFO L130 BoogieDeclarations]: Found specification of procedure PTR_ERR [2020-09-24 20:03:22,746 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2020-09-24 20:03:22,746 INFO L130 BoogieDeclarations]: Found specification of procedure arch_irqs_disabled_flags [2020-09-24 20:03:22,746 INFO L130 BoogieDeclarations]: Found specification of procedure trace_hardirqs_on [2020-09-24 20:03:22,747 INFO L130 BoogieDeclarations]: Found specification of procedure trace_hardirqs_off [2020-09-24 20:03:22,747 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2020-09-24 20:03:22,747 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2020-09-24 20:03:22,747 INFO L130 BoogieDeclarations]: Found specification of procedure resource_size [2020-09-24 20:03:22,747 INFO L130 BoogieDeclarations]: Found specification of procedure __readl [2020-09-24 20:03:22,747 INFO L130 BoogieDeclarations]: Found specification of procedure __writel [2020-09-24 20:03:22,747 INFO L130 BoogieDeclarations]: Found specification of procedure kmemcheck_mark_initialized [2020-09-24 20:03:22,748 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2020-09-24 20:03:22,748 INFO L130 BoogieDeclarations]: Found specification of procedure kobject_name [2020-09-24 20:03:22,748 INFO L130 BoogieDeclarations]: Found specification of procedure dev_name [2020-09-24 20:03:22,748 INFO L130 BoogieDeclarations]: Found specification of procedure dev_get_drvdata [2020-09-24 20:03:22,748 INFO L130 BoogieDeclarations]: Found specification of procedure dev_set_drvdata [2020-09-24 20:03:22,748 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-24 20:03:22,748 INFO L130 BoogieDeclarations]: Found specification of procedure dev_get_platdata [2020-09-24 20:03:22,749 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2020-09-24 20:03:22,749 INFO L130 BoogieDeclarations]: Found specification of procedure is_device_dma_capable [2020-09-24 20:03:22,749 INFO L130 BoogieDeclarations]: Found specification of procedure debug_dma_map_page [2020-09-24 20:03:22,749 INFO L130 BoogieDeclarations]: Found specification of procedure debug_dma_unmap_page [2020-09-24 20:03:22,749 INFO L130 BoogieDeclarations]: Found specification of procedure debug_dma_alloc_coherent [2020-09-24 20:03:22,749 INFO L130 BoogieDeclarations]: Found specification of procedure debug_dma_free_coherent [2020-09-24 20:03:22,749 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2020-09-24 20:03:22,750 INFO L130 BoogieDeclarations]: Found specification of procedure dma_map_single_attrs [2020-09-24 20:03:22,750 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~int~X~int~X~int~X~$Pointer$~TO~~dma_addr_t~0 [2020-09-24 20:03:22,750 INFO L130 BoogieDeclarations]: Found specification of procedure dma_unmap_single_attrs [2020-09-24 20:03:22,750 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~int~X~int~X~$Pointer$~TO~VOID [2020-09-24 20:03:22,750 INFO L130 BoogieDeclarations]: Found specification of procedure dma_alloc_coherent_mask [2020-09-24 20:03:22,750 INFO L130 BoogieDeclarations]: Found specification of procedure dma_alloc_coherent_gfp_flags [2020-09-24 20:03:22,751 INFO L130 BoogieDeclarations]: Found specification of procedure dma_alloc_attrs [2020-09-24 20:03:22,751 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~int~X~$Pointer$~X~~gfp_t~0~X~$Pointer$~TO~$Pointer$ [2020-09-24 20:03:22,751 INFO L130 BoogieDeclarations]: Found specification of procedure dma_free_attrs [2020-09-24 20:03:22,751 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-24 20:03:22,751 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 20:03:22,751 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kfree_skb_6 [2020-09-24 20:03:22,751 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kfree_skb_7 [2020-09-24 20:03:22,751 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kfree_skb_8 [2020-09-24 20:03:22,752 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kfree_skb_11 [2020-09-24 20:03:22,752 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_consume_skb_5 [2020-09-24 20:03:22,752 INFO L130 BoogieDeclarations]: Found specification of procedure skb_put [2020-09-24 20:03:22,752 INFO L130 BoogieDeclarations]: Found specification of procedure skb_reserve [2020-09-24 20:03:22,752 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-24 20:03:22,752 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_netdev_alloc_skb_12 [2020-09-24 20:03:22,752 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_skb_alloc [2020-09-24 20:03:22,753 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_skb_free [2020-09-24 20:03:22,753 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_skb_free_int [2020-09-24 20:03:22,753 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-24 20:03:22,753 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2020-09-24 20:03:22,753 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-24 20:03:22,753 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_ulong [2020-09-24 20:03:22,753 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-09-24 20:03:22,754 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-09-24 20:03:22,754 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2020-09-24 20:03:22,754 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-24 20:03:22,754 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2020-09-24 20:03:22,754 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2020-09-24 20:03:22,755 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2020-09-24 20:03:22,755 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_ulong [2020-09-24 20:03:22,755 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2020-09-24 20:03:22,755 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2020-09-24 20:03:22,756 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_trap [2020-09-24 20:03:22,756 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize_platform_driver_1 [2020-09-24 20:03:22,756 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_net_device_ops_2 [2020-09-24 20:03:22,756 INFO L130 BoogieDeclarations]: Found specification of procedure devm_request_threaded_irq [2020-09-24 20:03:22,756 INFO L130 BoogieDeclarations]: Found specification of procedure devm_request_irq [2020-09-24 20:03:22,757 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2020-09-24 20:03:22,757 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2020-09-24 20:03:22,757 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2020-09-24 20:03:22,757 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_netdev_16 [2020-09-24 20:03:22,757 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_netdev_18 [2020-09-24 20:03:22,758 INFO L130 BoogieDeclarations]: Found specification of procedure __netif_schedule [2020-09-24 20:03:22,758 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_start_queue [2020-09-24 20:03:22,758 INFO L130 BoogieDeclarations]: Found specification of procedure netif_start_queue [2020-09-24 20:03:22,760 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_wake_queue [2020-09-24 20:03:22,765 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2020-09-24 20:03:22,765 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_stop_queue [2020-09-24 20:03:22,765 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2020-09-24 20:03:22,765 INFO L130 BoogieDeclarations]: Found specification of procedure netif_running [2020-09-24 20:03:22,765 INFO L130 BoogieDeclarations]: Found specification of procedure __dev_kfree_skb_irq [2020-09-24 20:03:22,766 INFO L130 BoogieDeclarations]: Found specification of procedure dev_kfree_skb_irq [2020-09-24 20:03:22,766 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_netif_rx_13 [2020-09-24 20:03:22,766 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_off [2020-09-24 20:03:22,766 INFO L130 BoogieDeclarations]: Found specification of procedure netif_device_detach [2020-09-24 20:03:22,766 INFO L130 BoogieDeclarations]: Found specification of procedure netif_device_attach [2020-09-24 20:03:22,766 INFO L130 BoogieDeclarations]: Found specification of procedure ether_setup [2020-09-24 20:03:22,767 INFO L130 BoogieDeclarations]: Found specification of procedure register_netdev [2020-09-24 20:03:22,767 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_register_netdev_14 [2020-09-24 20:03:22,767 INFO L130 BoogieDeclarations]: Found specification of procedure unregister_netdev [2020-09-24 20:03:22,767 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_unregister_netdev_15 [2020-09-24 20:03:22,768 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_unregister_netdev_17 [2020-09-24 20:03:22,772 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_err [2020-09-24 20:03:22,772 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_info [2020-09-24 20:03:22,772 INFO L130 BoogieDeclarations]: Found specification of procedure eth_type_trans [2020-09-24 20:03:22,772 INFO L130 BoogieDeclarations]: Found specification of procedure eth_mac_addr [2020-09-24 20:03:22,772 INFO L130 BoogieDeclarations]: Found specification of procedure eth_change_mtu [2020-09-24 20:03:22,773 INFO L130 BoogieDeclarations]: Found specification of procedure eth_validate_addr [2020-09-24 20:03:22,773 INFO L130 BoogieDeclarations]: Found specification of procedure alloc_etherdev_mqs [2020-09-24 20:03:22,773 INFO L130 BoogieDeclarations]: Found specification of procedure platform_get_resource [2020-09-24 20:03:22,773 INFO L130 BoogieDeclarations]: Found specification of procedure platform_get_irq [2020-09-24 20:03:22,773 INFO L130 BoogieDeclarations]: Found specification of procedure platform_driver_unregister [2020-09-24 20:03:22,773 INFO L130 BoogieDeclarations]: Found specification of procedure platform_driver_probe [2020-09-24 20:03:22,773 INFO L130 BoogieDeclarations]: Found specification of procedure platform_get_drvdata [2020-09-24 20:03:22,773 INFO L130 BoogieDeclarations]: Found specification of procedure platform_set_drvdata [2020-09-24 20:03:22,774 INFO L130 BoogieDeclarations]: Found specification of procedure devm_clk_get [2020-09-24 20:03:22,774 INFO L130 BoogieDeclarations]: Found specification of procedure clk_enable [2020-09-24 20:03:22,774 INFO L130 BoogieDeclarations]: Found specification of procedure clk_disable [2020-09-24 20:03:22,774 INFO L130 BoogieDeclarations]: Found specification of procedure mdiobus_unregister [2020-09-24 20:03:22,774 INFO L130 BoogieDeclarations]: Found specification of procedure mdiobus_free [2020-09-24 20:03:22,774 INFO L130 BoogieDeclarations]: Found specification of procedure phy_disconnect [2020-09-24 20:03:22,774 INFO L130 BoogieDeclarations]: Found specification of procedure phy_start [2020-09-24 20:03:22,774 INFO L130 BoogieDeclarations]: Found specification of procedure devm_ioremap [2020-09-24 20:03:22,775 INFO L130 BoogieDeclarations]: Found specification of procedure of_get_phy_mode [2020-09-24 20:03:22,775 INFO L130 BoogieDeclarations]: Found specification of procedure of_get_mac_address [2020-09-24 20:03:22,775 INFO L130 BoogieDeclarations]: Found specification of procedure macb_mii_init [2020-09-24 20:03:22,775 INFO L130 BoogieDeclarations]: Found specification of procedure macb_ioctl [2020-09-24 20:03:22,775 INFO L130 BoogieDeclarations]: Found specification of procedure macb_get_stats [2020-09-24 20:03:22,775 INFO L130 BoogieDeclarations]: Found specification of procedure macb_set_rx_mode [2020-09-24 20:03:22,775 INFO L130 BoogieDeclarations]: Found specification of procedure macb_set_hwaddr [2020-09-24 20:03:22,775 INFO L130 BoogieDeclarations]: Found specification of procedure macb_get_hwaddr [2020-09-24 20:03:22,776 INFO L130 BoogieDeclarations]: Found specification of procedure at91ether_start [2020-09-24 20:03:22,776 INFO L130 BoogieDeclarations]: Found specification of procedure at91ether_open [2020-09-24 20:03:22,776 INFO L130 BoogieDeclarations]: Found specification of procedure at91ether_close [2020-09-24 20:03:22,776 INFO L130 BoogieDeclarations]: Found specification of procedure at91ether_start_xmit [2020-09-24 20:03:22,776 INFO L130 BoogieDeclarations]: Found specification of procedure at91ether_rx [2020-09-24 20:03:22,776 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2020-09-24 20:03:22,777 INFO L130 BoogieDeclarations]: Found specification of procedure at91ether_interrupt [2020-09-24 20:03:22,777 INFO L130 BoogieDeclarations]: Found specification of procedure at91ether_poll_controller [2020-09-24 20:03:22,777 INFO L130 BoogieDeclarations]: Found specification of procedure at91ether_probe [2020-09-24 20:03:22,777 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-24 20:03:22,777 INFO L130 BoogieDeclarations]: Found specification of procedure at91ether_remove [2020-09-24 20:03:22,778 INFO L130 BoogieDeclarations]: Found specification of procedure at91ether_suspend [2020-09-24 20:03:22,778 INFO L130 BoogieDeclarations]: Found specification of procedure at91ether_resume [2020-09-24 20:03:22,778 INFO L130 BoogieDeclarations]: Found specification of procedure at91ether_driver_init [2020-09-24 20:03:22,778 INFO L130 BoogieDeclarations]: Found specification of procedure at91ether_driver_exit [2020-09-24 20:03:22,778 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_probe_1 [2020-09-24 20:03:22,779 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_ndo_init_2 [2020-09-24 20:03:22,779 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_ndo_uninit_2 [2020-09-24 20:03:22,779 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize [2020-09-24 20:03:22,779 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2020-09-24 20:03:22,779 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-24 20:03:22,780 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2020-09-24 20:03:22,780 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_set_init [2020-09-24 20:03:22,780 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_set_add [2020-09-24 20:03:22,780 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_set_remove [2020-09-24 20:03:22,780 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_set_contains [2020-09-24 20:03:22,781 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_set_is_empty [2020-09-24 20:03:22,781 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err_or_null [2020-09-24 20:03:22,781 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_netdev_alloc_skb [2020-09-24 20:03:22,781 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_alloc_skb [2020-09-24 20:03:22,781 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_skb_current [2020-09-24 20:03:22,781 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_ushort [2020-09-24 20:03:22,782 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-24 20:03:22,782 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-24 20:03:22,782 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2020-09-24 20:03:22,782 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-24 20:03:22,782 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-24 20:03:22,782 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2020-09-24 20:03:22,783 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2020-09-24 20:03:22,783 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2020-09-24 20:03:22,783 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2020-09-24 20:03:23,773 INFO L732 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2020-09-24 20:03:25,817 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-24 20:03:25,818 INFO L295 CfgBuilder]: Removed 4 assume(true) statements. [2020-09-24 20:03:25,840 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 08:03:25 BoogieIcfgContainer [2020-09-24 20:03:25,840 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-24 20:03:25,844 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-24 20:03:25,844 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-24 20:03:25,850 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-24 20:03:25,850 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.09 08:03:19" (1/3) ... [2020-09-24 20:03:25,851 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@9795905 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 08:03:25, skipping insertion in model container [2020-09-24 20:03:25,851 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 08:03:22" (2/3) ... [2020-09-24 20:03:25,852 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@9795905 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 08:03:25, skipping insertion in model container [2020-09-24 20:03:25,852 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 08:03:25" (3/3) ... [2020-09-24 20:03:25,855 INFO L109 eAbstractionObserver]: Analyzing ICFG 205_9a_array_safes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--ethernet--cadence--at91_ether.ko-entry_point.cil.out.i [2020-09-24 20:03:25,872 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-24 20:03:25,889 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-24 20:03:25,920 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-24 20:03:25,975 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-24 20:03:25,975 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-24 20:03:25,975 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-24 20:03:25,976 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-24 20:03:25,976 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-24 20:03:25,976 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-24 20:03:25,976 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-24 20:03:25,976 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-24 20:03:26,067 INFO L276 IsEmpty]: Start isEmpty. Operand 2153 states. [2020-09-24 20:03:26,118 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 241 [2020-09-24 20:03:26,120 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 20:03:26,123 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 20:03:26,124 INFO L427 AbstractCegarLoop]: === Iteration 1 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 20:03:26,136 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 20:03:26,137 INFO L82 PathProgramCache]: Analyzing trace with hash 1808276336, now seen corresponding path program 1 times [2020-09-24 20:03:26,155 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 20:03:26,155 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [328136863] [2020-09-24 20:03:26,156 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 20:03:26,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:03:26,997 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:03:27,237 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:03:27,871 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 20:03:27,872 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 269 [2020-09-24 20:03:27,872 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 20:03:27,872 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1026 [2020-09-24 20:03:27,876 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 20:03:27,877 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 20:03:27,877 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 222 [2020-09-24 20:03:27,877 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-09-24 20:03:27,878 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 5 [2020-09-24 20:03:28,435 WARN L193 SmtUtils]: Spent 185.00 ms on a formula simplification that was a NOOP. DAG size: 154 [2020-09-24 20:03:28,436 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 20:03:28,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:03:28,481 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:03:28,681 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 20:03:28,681 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 122 [2020-09-24 20:03:28,681 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:03:28,681 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 226 [2020-09-24 20:03:28,682 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 20:03:28,682 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:03:28,682 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:03:28,682 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:03:28,683 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:03:28,819 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2020-09-24 20:03:28,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:03:28,836 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:03:28,885 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 20:03:28,886 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-24 20:03:28,886 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:03:28,886 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 62 [2020-09-24 20:03:28,886 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 20:03:28,887 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:03:28,887 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:03:28,887 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:03:28,887 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:03:28,912 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2020-09-24 20:03:28,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:03:28,926 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:03:28,965 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 20:03:28,966 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-24 20:03:28,966 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:03:28,966 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 50 [2020-09-24 20:03:28,966 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 20:03:28,967 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:03:28,967 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:03:28,967 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:03:28,967 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:03:28,996 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 171 [2020-09-24 20:03:29,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:03:29,011 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:03:29,042 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 20:03:29,043 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-24 20:03:29,043 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:03:29,043 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 41 [2020-09-24 20:03:29,043 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 20:03:29,044 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:03:29,044 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:03:29,044 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:03:29,044 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:03:29,091 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 186 [2020-09-24 20:03:29,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:03:29,104 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:03:29,138 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 20:03:29,139 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-09-24 20:03:29,139 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:03:29,139 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 45 [2020-09-24 20:03:29,139 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 20:03:29,139 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:03:29,140 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:03:29,140 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:03:29,140 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:03:29,150 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 20:03:29,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:03:29,161 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:03:29,213 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 20:03:29,213 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 20:03:29,213 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:03:29,214 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 60 [2020-09-24 20:03:29,214 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 20:03:29,214 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:03:29,214 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:03:29,214 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:03:29,215 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:03:29,254 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 195 [2020-09-24 20:03:29,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:03:29,267 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:03:29,288 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:03:29,390 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 20:03:29,390 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 20:03:29,390 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 20:03:29,391 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 132 [2020-09-24 20:03:29,394 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 20:03:29,394 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:03:29,395 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:03:29,395 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:03:29,395 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 20:03:29,411 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 219 [2020-09-24 20:03:29,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:03:29,423 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:03:29,444 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 20:03:29,444 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-09-24 20:03:29,445 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:03:29,445 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 30 [2020-09-24 20:03:29,445 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 20:03:29,445 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:03:29,445 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-24 20:03:29,446 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:03:29,446 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:03:29,455 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 20:03:29,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:03:29,465 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:03:29,480 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 20:03:29,480 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 20:03:29,480 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:03:29,480 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-09-24 20:03:29,481 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 20:03:29,481 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:03:29,481 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:03:29,481 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:03:29,481 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:03:29,497 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 229 [2020-09-24 20:03:29,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:03:29,513 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:03:29,553 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 20:03:29,554 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 20:03:29,554 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:03:29,554 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 50 [2020-09-24 20:03:29,554 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 20:03:29,555 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:03:29,555 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-09-24 20:03:29,555 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:03:29,555 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 20:03:29,669 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2020-09-24 20:03:29,670 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [328136863] [2020-09-24 20:03:29,673 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 20:03:29,673 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-09-24 20:03:29,675 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [921474302] [2020-09-24 20:03:29,683 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-24 20:03:29,683 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 20:03:29,708 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-24 20:03:29,709 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2020-09-24 20:03:29,713 INFO L87 Difference]: Start difference. First operand 2153 states. Second operand 7 states. [2020-09-24 20:03:29,992 WARN L193 SmtUtils]: Spent 237.00 ms on a formula simplification that was a NOOP. DAG size: 157 [2020-09-24 20:03:30,877 WARN L193 SmtUtils]: Spent 176.00 ms on a formula simplification that was a NOOP. DAG size: 159 [2020-09-24 20:03:31,141 WARN L193 SmtUtils]: Spent 166.00 ms on a formula simplification that was a NOOP. DAG size: 156 [2020-09-24 20:03:49,217 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 20:03:49,218 INFO L93 Difference]: Finished difference Result 5922 states and 6949 transitions. [2020-09-24 20:03:49,218 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2020-09-24 20:03:49,220 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 240 [2020-09-24 20:03:49,221 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 20:03:49,274 INFO L225 Difference]: With dead ends: 5922 [2020-09-24 20:03:49,274 INFO L226 Difference]: Without dead ends: 4266 [2020-09-24 20:03:49,289 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 61 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=103, Invalid=239, Unknown=0, NotChecked=0, Total=342 [2020-09-24 20:03:49,325 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4266 states. [2020-09-24 20:03:49,723 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4266 to 3219. [2020-09-24 20:03:49,724 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3219 states. [2020-09-24 20:03:49,746 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3219 states to 3219 states and 3580 transitions. [2020-09-24 20:03:49,750 INFO L78 Accepts]: Start accepts. Automaton has 3219 states and 3580 transitions. Word has length 240 [2020-09-24 20:03:49,752 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 20:03:49,752 INFO L479 AbstractCegarLoop]: Abstraction has 3219 states and 3580 transitions. [2020-09-24 20:03:49,752 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-24 20:03:49,752 INFO L276 IsEmpty]: Start isEmpty. Operand 3219 states and 3580 transitions. [2020-09-24 20:03:49,759 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 256 [2020-09-24 20:03:49,760 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 20:03:49,760 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 20:03:49,761 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-24 20:03:49,761 INFO L427 AbstractCegarLoop]: === Iteration 2 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 20:03:49,761 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 20:03:49,762 INFO L82 PathProgramCache]: Analyzing trace with hash 1113574353, now seen corresponding path program 1 times [2020-09-24 20:03:49,762 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 20:03:49,762 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [758623446] [2020-09-24 20:03:49,762 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 20:03:49,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:03:49,996 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:03:50,447 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:03:50,950 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 20:03:50,951 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 284 [2020-09-24 20:03:50,951 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 20:03:50,951 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1068 [2020-09-24 20:03:50,951 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 20:03:50,951 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-24 20:03:50,952 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 213 [2020-09-24 20:03:50,952 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 20:03:50,952 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:03:51,234 WARN L193 SmtUtils]: Spent 171.00 ms on a formula simplification that was a NOOP. DAG size: 154 [2020-09-24 20:03:51,235 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 20:03:51,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:03:51,266 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:03:51,423 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 20:03:51,424 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 122 [2020-09-24 20:03:51,424 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:03:51,424 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 179 [2020-09-24 20:03:51,424 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 20:03:51,424 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:03:51,425 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:03:51,425 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:03:51,425 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:03:51,544 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2020-09-24 20:03:51,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:03:51,555 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:03:51,597 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 20:03:51,597 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-24 20:03:51,598 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:03:51,598 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 51 [2020-09-24 20:03:51,598 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 20:03:51,599 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:03:51,599 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:03:51,608 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:03:51,608 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 9 [2020-09-24 20:03:51,634 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2020-09-24 20:03:51,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:03:51,646 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:03:51,689 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 20:03:51,690 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-24 20:03:51,690 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:03:51,690 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 53 [2020-09-24 20:03:51,691 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 20:03:51,691 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:03:51,692 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:03:51,692 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:03:51,692 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 20:03:51,718 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 171 [2020-09-24 20:03:51,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:03:51,731 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:03:51,746 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 20:03:51,746 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-24 20:03:51,746 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:03:51,747 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-09-24 20:03:51,747 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 20:03:51,747 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:03:51,747 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:03:51,748 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:03:51,748 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:03:51,786 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 186 [2020-09-24 20:03:51,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:03:51,803 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:03:51,850 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 20:03:51,850 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-09-24 20:03:51,850 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:03:51,851 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 61 [2020-09-24 20:03:51,851 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 20:03:51,852 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:03:51,852 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:03:51,852 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:03:51,853 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 20:03:51,868 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 20:03:51,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:03:51,884 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:03:51,904 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 20:03:51,905 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 20:03:51,905 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:03:51,905 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 34 [2020-09-24 20:03:51,906 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 20:03:51,906 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:03:51,907 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:03:51,907 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:03:51,907 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 20:03:51,946 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 195 [2020-09-24 20:03:51,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:03:51,965 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:03:52,059 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 20:03:52,059 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 20:03:52,059 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:03:52,059 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 106 [2020-09-24 20:03:52,060 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 20:03:52,060 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-24 20:03:52,060 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-24 20:03:52,060 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-24 20:03:52,061 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:03:52,107 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 221 [2020-09-24 20:03:52,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:03:52,126 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:03:52,170 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 20:03:52,170 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-09-24 20:03:52,170 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:03:52,170 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 59 [2020-09-24 20:03:52,171 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 20:03:52,171 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:03:52,171 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 20 [2020-09-24 20:03:52,171 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:03:52,171 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:03:52,193 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-24 20:03:52,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:03:52,205 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:03:52,221 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 20:03:52,221 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-09-24 20:03:52,221 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:03:52,222 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-09-24 20:03:52,222 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 20:03:52,222 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:03:52,222 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:03:52,223 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:03:52,223 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 20:03:52,244 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 244 [2020-09-24 20:03:52,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:03:52,257 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:03:52,290 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 20:03:52,290 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 20:03:52,290 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:03:52,290 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 43 [2020-09-24 20:03:52,291 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 20:03:52,291 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:03:52,291 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-09-24 20:03:52,291 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:03:52,291 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:03:52,407 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2020-09-24 20:03:52,408 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [758623446] [2020-09-24 20:03:52,408 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 20:03:52,408 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-09-24 20:03:52,408 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [909746445] [2020-09-24 20:03:52,411 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-24 20:03:52,411 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 20:03:52,411 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-24 20:03:52,412 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2020-09-24 20:03:52,412 INFO L87 Difference]: Start difference. First operand 3219 states and 3580 transitions. Second operand 8 states. [2020-09-24 20:03:52,594 WARN L193 SmtUtils]: Spent 171.00 ms on a formula simplification that was a NOOP. DAG size: 157 [2020-09-24 20:03:53,912 WARN L193 SmtUtils]: Spent 170.00 ms on a formula simplification that was a NOOP. DAG size: 160 [2020-09-24 20:03:54,150 WARN L193 SmtUtils]: Spent 224.00 ms on a formula simplification that was a NOOP. DAG size: 162 [2020-09-24 20:04:05,299 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 20:04:05,299 INFO L93 Difference]: Finished difference Result 6872 states and 7734 transitions. [2020-09-24 20:04:05,304 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-09-24 20:04:05,304 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 255 [2020-09-24 20:04:05,306 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 20:04:05,325 INFO L225 Difference]: With dead ends: 6872 [2020-09-24 20:04:05,325 INFO L226 Difference]: Without dead ends: 3821 [2020-09-24 20:04:05,334 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=76, Invalid=164, Unknown=0, NotChecked=0, Total=240 [2020-09-24 20:04:05,341 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3821 states. [2020-09-24 20:04:05,544 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3821 to 3220. [2020-09-24 20:04:05,545 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3220 states. [2020-09-24 20:04:05,556 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3220 states to 3220 states and 3581 transitions. [2020-09-24 20:04:05,558 INFO L78 Accepts]: Start accepts. Automaton has 3220 states and 3581 transitions. Word has length 255 [2020-09-24 20:04:05,560 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 20:04:05,560 INFO L479 AbstractCegarLoop]: Abstraction has 3220 states and 3581 transitions. [2020-09-24 20:04:05,560 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-24 20:04:05,560 INFO L276 IsEmpty]: Start isEmpty. Operand 3220 states and 3581 transitions. [2020-09-24 20:04:05,567 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 260 [2020-09-24 20:04:05,567 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 20:04:05,567 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 20:04:05,568 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-24 20:04:05,568 INFO L427 AbstractCegarLoop]: === Iteration 3 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 20:04:05,568 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 20:04:05,568 INFO L82 PathProgramCache]: Analyzing trace with hash -1362199021, now seen corresponding path program 1 times [2020-09-24 20:04:05,569 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 20:04:05,570 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [907338745] [2020-09-24 20:04:05,570 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 20:04:05,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:04:05,853 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:04:06,515 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:04:06,748 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 20:04:06,748 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 288 [2020-09-24 20:04:06,748 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 20:04:06,749 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1027 [2020-09-24 20:04:06,749 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 20:04:06,749 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-24 20:04:06,749 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 213 [2020-09-24 20:04:06,750 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 20:04:06,750 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:04:07,021 WARN L193 SmtUtils]: Spent 167.00 ms on a formula simplification that was a NOOP. DAG size: 154 [2020-09-24 20:04:07,021 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 20:04:07,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:04:07,054 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:04:07,291 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 20:04:07,291 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 122 [2020-09-24 20:04:07,291 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:04:07,291 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 259 [2020-09-24 20:04:07,292 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 20:04:07,292 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:04:07,292 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:04:07,292 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:04:07,293 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:04:07,415 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2020-09-24 20:04:07,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:04:07,428 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:04:07,466 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 20:04:07,466 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-24 20:04:07,467 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:04:07,467 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 49 [2020-09-24 20:04:07,467 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 20:04:07,467 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:04:07,467 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:04:07,468 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:04:07,468 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:04:07,491 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2020-09-24 20:04:07,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:04:07,504 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:04:07,522 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 20:04:07,522 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-24 20:04:07,522 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:04:07,523 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 28 [2020-09-24 20:04:07,523 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 20:04:07,523 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:04:07,524 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:04:07,524 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:04:07,524 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 20:04:07,546 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 171 [2020-09-24 20:04:07,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:04:07,557 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:04:07,592 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 20:04:07,593 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-24 20:04:07,593 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:04:07,593 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 44 [2020-09-24 20:04:07,593 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 20:04:07,594 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:04:07,594 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:04:07,594 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:04:07,594 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:04:07,626 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 186 [2020-09-24 20:04:07,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:04:07,637 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:04:07,667 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 20:04:07,667 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-09-24 20:04:07,667 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:04:07,668 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 39 [2020-09-24 20:04:07,668 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 20:04:07,668 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:04:07,668 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:04:07,668 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:04:07,669 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:04:07,681 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 20:04:07,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:04:07,692 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:04:07,721 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 20:04:07,721 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 20:04:07,721 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:04:07,722 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 38 [2020-09-24 20:04:07,722 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 20:04:07,722 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:04:07,722 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:04:07,723 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:04:07,723 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:04:07,756 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 195 [2020-09-24 20:04:07,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:04:07,775 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:04:07,897 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 20:04:07,897 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-09-24 20:04:07,897 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:04:07,898 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 134 [2020-09-24 20:04:07,898 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 20:04:07,898 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-24 20:04:07,898 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-24 20:04:07,898 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-09-24 20:04:07,899 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:04:07,966 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 225 [2020-09-24 20:04:07,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:04:07,982 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:04:08,016 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 20:04:08,016 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-09-24 20:04:08,016 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:04:08,016 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 46 [2020-09-24 20:04:08,017 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 20:04:08,017 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:04:08,017 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 20 [2020-09-24 20:04:08,017 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:04:08,018 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:04:08,037 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-24 20:04:08,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:04:08,046 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:04:08,074 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 20:04:08,075 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-09-24 20:04:08,075 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:04:08,075 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 36 [2020-09-24 20:04:08,076 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 20:04:08,076 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:04:08,076 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 20:04:08,076 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:04:08,076 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:04:08,095 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 248 [2020-09-24 20:04:08,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 20:04:08,106 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 20:04:08,137 FATAL L256 erpolLogProxyWrapper]: Timeout: 1000 [2020-09-24 20:04:08,137 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-24 20:04:08,138 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 20:04:08,138 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 40 [2020-09-24 20:04:08,138 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 20:04:08,138 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 20:04:08,138 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-09-24 20:04:08,139 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 20:04:08,139 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 20:04:08,233 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2020-09-24 20:04:08,233 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [907338745] [2020-09-24 20:04:08,233 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-24 20:04:08,234 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2020-09-24 20:04:08,234 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [135660953] [2020-09-24 20:04:08,235 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-24 20:04:08,235 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 20:04:08,235 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-24 20:04:08,236 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2020-09-24 20:04:08,236 INFO L87 Difference]: Start difference. First operand 3220 states and 3581 transitions. Second operand 9 states. [2020-09-24 20:04:08,425 WARN L193 SmtUtils]: Spent 173.00 ms on a formula simplification that was a NOOP. DAG size: 157 [2020-09-24 20:04:09,852 WARN L193 SmtUtils]: Spent 217.00 ms on a formula simplification that was a NOOP. DAG size: 160