/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.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 SequenceOfStatements --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=WIDESTAMONGSMALL --traceabstraction.additional.smt.options tolerance=0.6 --traceabstraction.additional.smt.options log-additional-information=true --traceabstraction.additional.smt.options unknown-allowed=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-64bit-Automizer_Default.epf language data_model -i ../../../trunk/examples/svcomp/ldv-linux-3.16-rc1/205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--wan--hdlc_fr.ko-entry_point.cil.out.i -------------------------------------------------------------------------------- This is Ultimate 0.2.0-0f64333 [2020-10-28 23:37:07,641 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-28 23:37:07,644 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-28 23:37:07,702 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-28 23:37:07,702 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-28 23:37:07,709 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-28 23:37:07,711 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-28 23:37:07,716 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-28 23:37:07,719 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-28 23:37:07,725 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-28 23:37:07,726 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-28 23:37:07,728 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-28 23:37:07,728 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-28 23:37:07,731 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-28 23:37:07,733 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-28 23:37:07,736 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-28 23:37:07,737 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-28 23:37:07,739 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-28 23:37:07,741 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-28 23:37:07,747 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-28 23:37:07,751 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-28 23:37:07,753 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-28 23:37:07,754 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-28 23:37:07,755 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-28 23:37:07,766 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-28 23:37:07,766 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-28 23:37:07,767 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-28 23:37:07,772 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-28 23:37:07,772 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-28 23:37:07,774 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-28 23:37:07,774 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-28 23:37:07,775 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-28 23:37:07,777 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-28 23:37:07,778 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-28 23:37:07,779 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-28 23:37:07,779 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-28 23:37:07,779 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-28 23:37:07,780 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-28 23:37:07,780 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-28 23:37:07,781 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-28 23:37:07,781 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-28 23:37:07,789 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 [2020-10-28 23:37:07,838 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-28 23:37:07,838 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-28 23:37:07,842 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-28 23:37:07,843 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-28 23:37:07,843 INFO L138 SettingsManager]: * Use SBE=true [2020-10-28 23:37:07,843 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-28 23:37:07,843 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-28 23:37:07,844 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-28 23:37:07,844 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-28 23:37:07,844 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-28 23:37:07,845 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-28 23:37:07,845 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-28 23:37:07,846 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-28 23:37:07,846 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-28 23:37:07,846 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-28 23:37:07,846 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-28 23:37:07,846 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-28 23:37:07,847 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-28 23:37:07,847 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-28 23:37:07,847 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-28 23:37:07,847 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-28 23:37:07,847 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-28 23:37:07,848 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-28 23:37:07,848 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-28 23:37:07,848 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-28 23:37:07,848 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-28 23:37:07,848 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-10-28 23:37:07,849 INFO L138 SettingsManager]: * To the following directory=dump/ WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.6;log-additional-information=true;unknown-allowed=true; [2020-10-28 23:37:08,237 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-28 23:37:08,275 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-28 23:37:08,279 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-28 23:37:08,280 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-28 23:37:08,282 INFO L275 PluginConnector]: CDTParser initialized [2020-10-28 23:37:08,283 INFO L432 ainManager$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_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--wan--hdlc_fr.ko-entry_point.cil.out.i [2020-10-28 23:37:08,376 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/330c3a776/a43061cbc50f4ddb985cb12fa951db85/FLAGd4e11f344 [2020-10-28 23:37:09,527 INFO L306 CDTParser]: Found 1 translation units. [2020-10-28 23:37:09,527 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/ldv-linux-3.16-rc1/205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--wan--hdlc_fr.ko-entry_point.cil.out.i [2020-10-28 23:37:09,593 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/330c3a776/a43061cbc50f4ddb985cb12fa951db85/FLAGd4e11f344 [2020-10-28 23:37:09,886 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/330c3a776/a43061cbc50f4ddb985cb12fa951db85 [2020-10-28 23:37:09,891 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-28 23:37:09,900 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-28 23:37:09,905 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-28 23:37:09,905 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-28 23:37:09,909 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-28 23:37:09,910 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 11:37:09" (1/1) ... [2020-10-28 23:37:09,916 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@391dbe57 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:37:09, skipping insertion in model container [2020-10-28 23:37:09,916 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 11:37:09" (1/1) ... [2020-10-28 23:37:09,925 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-28 23:37:10,056 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-28 23:37:11,767 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-28 23:37:11,790 INFO L203 MainTranslator]: Completed pre-run [2020-10-28 23:37:12,158 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-28 23:37:12,367 INFO L208 MainTranslator]: Completed translation [2020-10-28 23:37:12,367 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:37:12 WrapperNode [2020-10-28 23:37:12,368 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-28 23:37:12,369 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-28 23:37:12,369 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-28 23:37:12,369 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-28 23:37:12,385 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:37:12" (1/1) ... [2020-10-28 23:37:12,385 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:37:12" (1/1) ... [2020-10-28 23:37:12,474 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:37:12" (1/1) ... [2020-10-28 23:37:12,475 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:37:12" (1/1) ... [2020-10-28 23:37:12,658 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:37:12" (1/1) ... [2020-10-28 23:37:12,691 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:37:12" (1/1) ... [2020-10-28 23:37:12,731 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:37:12" (1/1) ... [2020-10-28 23:37:12,766 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-28 23:37:12,767 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-28 23:37:12,767 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-28 23:37:12,767 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-28 23:37:12,768 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:37:12" (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 [2020-10-28 23:37:12,853 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-28 23:37:12,854 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-28 23:37:12,854 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~int~X~int~TO~int [2020-10-28 23:37:12,854 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~TO~VOID [2020-10-28 23:37:12,855 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-28 23:37:12,855 INFO L138 BoogieDeclarations]: Found implementation of procedure test_and_set_bit [2020-10-28 23:37:12,855 INFO L138 BoogieDeclarations]: Found implementation of procedure test_and_clear_bit [2020-10-28 23:37:12,856 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2020-10-28 23:37:12,856 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab16 [2020-10-28 23:37:12,857 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_read [2020-10-28 23:37:12,857 INFO L138 BoogieDeclarations]: Found implementation of procedure __kmalloc [2020-10-28 23:37:12,857 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2020-10-28 23:37:12,858 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2020-10-28 23:37:12,859 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_from_user [2020-10-28 23:37:12,859 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_to_user [2020-10-28 23:37:12,860 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_shared [2020-10-28 23:37:12,860 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_share_check [2020-10-28 23:37:12,863 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_is_nonlinear [2020-10-28 23:37:12,864 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_tail_pointer [2020-10-28 23:37:12,864 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_headroom [2020-10-28 23:37:12,864 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_tailroom [2020-10-28 23:37:12,864 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_reserve [2020-10-28 23:37:12,865 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_reset_network_header [2020-10-28 23:37:12,865 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-10-28 23:37:12,865 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2020-10-28 23:37:12,866 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2020-10-28 23:37:12,870 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2020-10-28 23:37:12,871 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_ulong [2020-10-28 23:37:12,871 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2020-10-28 23:37:12,871 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2020-10-28 23:37:12,871 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2020-10-28 23:37:12,871 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_trap [2020-10-28 23:37:12,871 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2020-10-28 23:37:12,872 INFO L138 BoogieDeclarations]: Found implementation of procedure unregister_netdevice [2020-10-28 23:37:12,872 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_kfree_skb_any [2020-10-28 23:37:12,872 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_ok [2020-10-28 23:37:12,872 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_dormant_on [2020-10-28 23:37:12,872 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_dormant_off [2020-10-28 23:37:12,872 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_random_addr [2020-10-28 23:37:12,873 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_hw_addr_random [2020-10-28 23:37:12,873 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_to_hdlc [2020-10-28 23:37:12,873 INFO L138 BoogieDeclarations]: Found implementation of procedure q922_to_dlci [2020-10-28 23:37:12,873 INFO L138 BoogieDeclarations]: Found implementation of procedure dlci_to_q922 [2020-10-28 23:37:12,873 INFO L138 BoogieDeclarations]: Found implementation of procedure state [2020-10-28 23:37:12,873 INFO L138 BoogieDeclarations]: Found implementation of procedure find_pvc [2020-10-28 23:37:12,873 INFO L138 BoogieDeclarations]: Found implementation of procedure add_pvc [2020-10-28 23:37:12,874 INFO L138 BoogieDeclarations]: Found implementation of procedure pvc_is_used [2020-10-28 23:37:12,874 INFO L138 BoogieDeclarations]: Found implementation of procedure pvc_carrier [2020-10-28 23:37:12,874 INFO L138 BoogieDeclarations]: Found implementation of procedure delete_unused_pvcs [2020-10-28 23:37:12,874 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dev_p [2020-10-28 23:37:12,874 INFO L138 BoogieDeclarations]: Found implementation of procedure fr_hard_header [2020-10-28 23:37:12,874 INFO L138 BoogieDeclarations]: Found implementation of procedure pvc_open [2020-10-28 23:37:12,875 INFO L138 BoogieDeclarations]: Found implementation of procedure pvc_close [2020-10-28 23:37:12,875 INFO L138 BoogieDeclarations]: Found implementation of procedure pvc_ioctl [2020-10-28 23:37:12,875 INFO L138 BoogieDeclarations]: Found implementation of procedure pvc_xmit [2020-10-28 23:37:12,875 INFO L138 BoogieDeclarations]: Found implementation of procedure fr_log_dlci_active [2020-10-28 23:37:12,876 INFO L138 BoogieDeclarations]: Found implementation of procedure fr_lmi_nextseq [2020-10-28 23:37:12,876 INFO L138 BoogieDeclarations]: Found implementation of procedure fr_lmi_send [2020-10-28 23:37:12,876 INFO L138 BoogieDeclarations]: Found implementation of procedure fr_set_link_state [2020-10-28 23:37:12,877 INFO L138 BoogieDeclarations]: Found implementation of procedure fr_timer [2020-10-28 23:37:12,877 INFO L138 BoogieDeclarations]: Found implementation of procedure fr_lmi_recv [2020-10-28 23:37:12,877 INFO L138 BoogieDeclarations]: Found implementation of procedure fr_rx [2020-10-28 23:37:12,878 INFO L138 BoogieDeclarations]: Found implementation of procedure fr_start [2020-10-28 23:37:12,878 INFO L138 BoogieDeclarations]: Found implementation of procedure fr_stop [2020-10-28 23:37:12,878 INFO L138 BoogieDeclarations]: Found implementation of procedure fr_close [2020-10-28 23:37:12,878 INFO L138 BoogieDeclarations]: Found implementation of procedure pvc_setup [2020-10-28 23:37:12,878 INFO L138 BoogieDeclarations]: Found implementation of procedure fr_add_pvc [2020-10-28 23:37:12,878 INFO L138 BoogieDeclarations]: Found implementation of procedure fr_del_pvc [2020-10-28 23:37:12,878 INFO L138 BoogieDeclarations]: Found implementation of procedure fr_destroy [2020-10-28 23:37:12,879 INFO L138 BoogieDeclarations]: Found implementation of procedure fr_ioctl [2020-10-28 23:37:12,879 INFO L138 BoogieDeclarations]: Found implementation of procedure mod_init [2020-10-28 23:37:12,879 INFO L138 BoogieDeclarations]: Found implementation of procedure mod_exit [2020-10-28 23:37:12,879 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_net_device_ops_3 [2020-10-28 23:37:12,880 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_pending_timer_1 [2020-10-28 23:37:12,881 INFO L138 BoogieDeclarations]: Found implementation of procedure choose_timer_1 [2020-10-28 23:37:12,881 INFO L138 BoogieDeclarations]: Found implementation of procedure reg_timer_1 [2020-10-28 23:37:12,882 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize_hdlc_proto_2 [2020-10-28 23:37:12,882 INFO L138 BoogieDeclarations]: Found implementation of procedure disable_suitable_timer_1 [2020-10-28 23:37:12,882 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-28 23:37:12,882 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_consume_skb_5 [2020-10-28 23:37:12,882 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kfree_skb_6 [2020-10-28 23:37:12,882 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kfree_skb_7 [2020-10-28 23:37:12,884 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kfree_skb_8 [2020-10-28 23:37:12,884 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kfree_skb_11 [2020-10-28 23:37:12,885 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_alloc_skb_12 [2020-10-28 23:37:12,885 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_netif_rx_13 [2020-10-28 23:37:12,885 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_del_timer_sync_14 [2020-10-28 23:37:12,885 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_set_init [2020-10-28 23:37:12,885 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_set_add [2020-10-28 23:37:12,885 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_set_remove [2020-10-28 23:37:12,886 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_set_contains [2020-10-28 23:37:12,886 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_set_is_empty [2020-10-28 23:37:12,886 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2020-10-28 23:37:12,886 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_err_ptr [2020-10-28 23:37:12,886 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_ptr_err [2020-10-28 23:37:12,886 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err_or_null [2020-10-28 23:37:12,886 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_skb_alloc [2020-10-28 23:37:12,887 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize [2020-10-28 23:37:12,887 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_skb_free [2020-10-28 23:37:12,887 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_skb_free_int [2020-10-28 23:37:12,887 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_alloc_skb [2020-10-28 23:37:12,887 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_netdev_alloc_skb [2020-10-28 23:37:12,887 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_skb_current [2020-10-28 23:37:12,888 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2020-10-28 23:37:12,888 INFO L138 BoogieDeclarations]: Found implementation of procedure __copy_from_user_overflow [2020-10-28 23:37:12,888 INFO L138 BoogieDeclarations]: Found implementation of procedure __copy_to_user_overflow [2020-10-28 23:37:12,888 INFO L138 BoogieDeclarations]: Found implementation of procedure __dev_kfree_skb_any [2020-10-28 23:37:12,889 INFO L138 BoogieDeclarations]: Found implementation of procedure __might_sleep [2020-10-28 23:37:12,889 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_from_user [2020-10-28 23:37:12,889 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_to_user [2020-10-28 23:37:12,890 INFO L138 BoogieDeclarations]: Found implementation of procedure add_timer [2020-10-28 23:37:12,890 INFO L138 BoogieDeclarations]: Found implementation of procedure alloc_netdev_mqs [2020-10-28 23:37:12,890 INFO L138 BoogieDeclarations]: Found implementation of procedure attach_hdlc_protocol [2020-10-28 23:37:12,891 INFO L138 BoogieDeclarations]: Found implementation of procedure capable [2020-10-28 23:37:12,891 INFO L138 BoogieDeclarations]: Found implementation of procedure del_timer_sync [2020-10-28 23:37:12,891 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_close [2020-10-28 23:37:12,892 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_queue_xmit [2020-10-28 23:37:12,892 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_type_trans [2020-10-28 23:37:12,892 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2020-10-28 23:37:12,892 INFO L138 BoogieDeclarations]: Found implementation of procedure get_random_bytes [2020-10-28 23:37:12,892 INFO L138 BoogieDeclarations]: Found implementation of procedure hdlc_change_mtu [2020-10-28 23:37:12,893 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_disconnect_2 [2020-10-28 23:37:12,893 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_ndo_init_3 [2020-10-28 23:37:12,894 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_ndo_uninit_3 [2020-10-28 23:37:12,894 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_open_2 [2020-10-28 23:37:12,894 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_setup_2 [2020-10-28 23:37:12,894 INFO L138 BoogieDeclarations]: Found implementation of procedure linkwatch_fire_event [2020-10-28 23:37:12,894 INFO L138 BoogieDeclarations]: Found implementation of procedure might_fault [2020-10-28 23:37:12,894 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_info [2020-10-28 23:37:12,894 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_warn [2020-10-28 23:37:12,895 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_off [2020-10-28 23:37:12,895 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_on [2020-10-28 23:37:12,896 INFO L138 BoogieDeclarations]: Found implementation of procedure pskb_expand_head [2020-10-28 23:37:12,897 INFO L138 BoogieDeclarations]: Found implementation of procedure register_hdlc_protocol [2020-10-28 23:37:12,900 INFO L138 BoogieDeclarations]: Found implementation of procedure register_netdevice [2020-10-28 23:37:12,901 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_clone [2020-10-28 23:37:12,901 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_pull [2020-10-28 23:37:12,901 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_push [2020-10-28 23:37:12,901 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_put [2020-10-28 23:37:12,902 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_realloc_headroom [2020-10-28 23:37:12,902 INFO L138 BoogieDeclarations]: Found implementation of procedure unregister_hdlc_protocol [2020-10-28 23:37:12,903 INFO L138 BoogieDeclarations]: Found implementation of procedure unregister_netdevice_queue [2020-10-28 23:37:12,903 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2020-10-28 23:37:12,903 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2020-10-28 23:37:12,905 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2020-10-28 23:37:12,911 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2020-10-28 23:37:12,911 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-28 23:37:12,911 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-28 23:37:12,911 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_perror_fail [2020-10-28 23:37:12,911 INFO L130 BoogieDeclarations]: Found specification of procedure __assert [2020-10-28 23:37:12,911 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-28 23:37:12,912 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-28 23:37:12,912 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2020-10-28 23:37:12,912 INFO L130 BoogieDeclarations]: Found specification of procedure test_and_set_bit [2020-10-28 23:37:12,912 INFO L130 BoogieDeclarations]: Found specification of procedure test_and_clear_bit [2020-10-28 23:37:12,912 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2020-10-28 23:37:12,912 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-28 23:37:12,912 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab16 [2020-10-28 23:37:12,913 INFO L130 BoogieDeclarations]: Found specification of procedure __might_sleep [2020-10-28 23:37:12,913 INFO L130 BoogieDeclarations]: Found specification of procedure might_fault [2020-10-28 23:37:12,913 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy [2020-10-28 23:37:12,913 INFO L130 BoogieDeclarations]: Found specification of procedure memset [2020-10-28 23:37:12,913 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_read [2020-10-28 23:37:12,913 INFO L130 BoogieDeclarations]: Found specification of procedure add_timer [2020-10-28 23:37:12,913 INFO L130 BoogieDeclarations]: Found specification of procedure del_timer_sync [2020-10-28 23:37:12,914 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_del_timer_sync_14 [2020-10-28 23:37:12,914 INFO L130 BoogieDeclarations]: Found specification of procedure get_random_bytes [2020-10-28 23:37:12,914 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2020-10-28 23:37:12,914 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2020-10-28 23:37:12,914 INFO L130 BoogieDeclarations]: Found specification of procedure __kmalloc [2020-10-28 23:37:12,914 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2020-10-28 23:37:12,914 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2020-10-28 23:37:12,915 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2020-10-28 23:37:12,915 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_from_user [2020-10-28 23:37:12,915 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_to_user [2020-10-28 23:37:12,915 INFO L130 BoogieDeclarations]: Found specification of procedure __copy_from_user_overflow [2020-10-28 23:37:12,915 INFO L130 BoogieDeclarations]: Found specification of procedure __copy_to_user_overflow [2020-10-28 23:37:12,915 INFO L130 BoogieDeclarations]: Found specification of procedure copy_from_user [2020-10-28 23:37:12,915 INFO L130 BoogieDeclarations]: Found specification of procedure copy_to_user [2020-10-28 23:37:12,916 INFO L130 BoogieDeclarations]: Found specification of procedure capable [2020-10-28 23:37:12,916 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kfree_skb_6 [2020-10-28 23:37:12,916 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kfree_skb_7 [2020-10-28 23:37:12,916 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kfree_skb_8 [2020-10-28 23:37:12,916 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kfree_skb_11 [2020-10-28 23:37:12,916 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_consume_skb_5 [2020-10-28 23:37:12,916 INFO L130 BoogieDeclarations]: Found specification of procedure skb_clone [2020-10-28 23:37:12,916 INFO L130 BoogieDeclarations]: Found specification of procedure pskb_expand_head [2020-10-28 23:37:12,917 INFO L130 BoogieDeclarations]: Found specification of procedure skb_realloc_headroom [2020-10-28 23:37:12,917 INFO L130 BoogieDeclarations]: Found specification of procedure skb_shared [2020-10-28 23:37:12,917 INFO L130 BoogieDeclarations]: Found specification of procedure skb_share_check [2020-10-28 23:37:12,917 INFO L130 BoogieDeclarations]: Found specification of procedure skb_is_nonlinear [2020-10-28 23:37:12,917 INFO L130 BoogieDeclarations]: Found specification of procedure skb_tail_pointer [2020-10-28 23:37:12,917 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-10-28 23:37:12,917 INFO L130 BoogieDeclarations]: Found specification of procedure skb_put [2020-10-28 23:37:12,918 INFO L130 BoogieDeclarations]: Found specification of procedure skb_push [2020-10-28 23:37:12,918 INFO L130 BoogieDeclarations]: Found specification of procedure skb_pull [2020-10-28 23:37:12,918 INFO L130 BoogieDeclarations]: Found specification of procedure skb_headroom [2020-10-28 23:37:12,918 INFO L130 BoogieDeclarations]: Found specification of procedure skb_tailroom [2020-10-28 23:37:12,918 INFO L130 BoogieDeclarations]: Found specification of procedure skb_reserve [2020-10-28 23:37:12,918 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-10-28 23:37:12,918 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-28 23:37:12,918 INFO L130 BoogieDeclarations]: Found specification of procedure skb_reset_network_header [2020-10-28 23:37:12,919 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_alloc_skb_12 [2020-10-28 23:37:12,919 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_skb_alloc [2020-10-28 23:37:12,919 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_skb_free [2020-10-28 23:37:12,919 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_skb_free_int [2020-10-28 23:37:12,919 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-10-28 23:37:12,919 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2020-10-28 23:37:12,919 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-28 23:37:12,920 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_ulong [2020-10-28 23:37:12,920 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-10-28 23:37:12,920 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-10-28 23:37:12,920 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2020-10-28 23:37:12,920 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2020-10-28 23:37:12,920 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_ulong [2020-10-28 23:37:12,920 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2020-10-28 23:37:12,921 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2020-10-28 23:37:12,921 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_trap [2020-10-28 23:37:12,921 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_net_device_ops_3 [2020-10-28 23:37:12,921 INFO L130 BoogieDeclarations]: Found specification of procedure activate_pending_timer_1 [2020-10-28 23:37:12,921 INFO L130 BoogieDeclarations]: Found specification of procedure choose_timer_1 [2020-10-28 23:37:12,921 INFO L130 BoogieDeclarations]: Found specification of procedure reg_timer_1 [2020-10-28 23:37:12,921 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize_hdlc_proto_2 [2020-10-28 23:37:12,922 INFO L130 BoogieDeclarations]: Found specification of procedure disable_suitable_timer_1 [2020-10-28 23:37:12,922 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2020-10-28 23:37:12,922 INFO L130 BoogieDeclarations]: Found specification of procedure dev_close [2020-10-28 23:37:12,922 INFO L130 BoogieDeclarations]: Found specification of procedure dev_queue_xmit [2020-10-28 23:37:12,922 INFO L130 BoogieDeclarations]: Found specification of procedure register_netdevice [2020-10-28 23:37:12,922 INFO L130 BoogieDeclarations]: Found specification of procedure unregister_netdevice_queue [2020-10-28 23:37:12,922 INFO L130 BoogieDeclarations]: Found specification of procedure unregister_netdevice [2020-10-28 23:37:12,923 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2020-10-28 23:37:12,923 INFO L130 BoogieDeclarations]: Found specification of procedure __dev_kfree_skb_any [2020-10-28 23:37:12,923 INFO L130 BoogieDeclarations]: Found specification of procedure dev_kfree_skb_any [2020-10-28 23:37:12,923 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_netif_rx_13 [2020-10-28 23:37:12,923 INFO L130 BoogieDeclarations]: Found specification of procedure linkwatch_fire_event [2020-10-28 23:37:12,923 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_ok [2020-10-28 23:37:12,923 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_on [2020-10-28 23:37:12,924 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_off [2020-10-28 23:37:12,924 INFO L130 BoogieDeclarations]: Found specification of procedure netif_dormant_on [2020-10-28 23:37:12,924 INFO L130 BoogieDeclarations]: Found specification of procedure netif_dormant_off [2020-10-28 23:37:12,924 INFO L130 BoogieDeclarations]: Found specification of procedure ether_setup [2020-10-28 23:37:12,924 INFO L130 BoogieDeclarations]: Found specification of procedure alloc_netdev_mqs [2020-10-28 23:37:12,924 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_warn [2020-10-28 23:37:12,924 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_info [2020-10-28 23:37:12,925 INFO L130 BoogieDeclarations]: Found specification of procedure eth_type_trans [2020-10-28 23:37:12,925 INFO L130 BoogieDeclarations]: Found specification of procedure eth_random_addr [2020-10-28 23:37:12,925 INFO L130 BoogieDeclarations]: Found specification of procedure eth_hw_addr_random [2020-10-28 23:37:12,925 INFO L130 BoogieDeclarations]: Found specification of procedure register_hdlc_protocol [2020-10-28 23:37:12,925 INFO L130 BoogieDeclarations]: Found specification of procedure unregister_hdlc_protocol [2020-10-28 23:37:12,925 INFO L130 BoogieDeclarations]: Found specification of procedure dev_to_hdlc [2020-10-28 23:37:12,925 INFO L130 BoogieDeclarations]: Found specification of procedure hdlc_change_mtu [2020-10-28 23:37:12,926 INFO L130 BoogieDeclarations]: Found specification of procedure attach_hdlc_protocol [2020-10-28 23:37:12,926 INFO L130 BoogieDeclarations]: Found specification of procedure fr_ioctl [2020-10-28 23:37:12,926 INFO L130 BoogieDeclarations]: Found specification of procedure q922_to_dlci [2020-10-28 23:37:12,926 INFO L130 BoogieDeclarations]: Found specification of procedure dlci_to_q922 [2020-10-28 23:37:12,926 INFO L130 BoogieDeclarations]: Found specification of procedure state [2020-10-28 23:37:12,926 INFO L130 BoogieDeclarations]: Found specification of procedure find_pvc [2020-10-28 23:37:12,926 INFO L130 BoogieDeclarations]: Found specification of procedure add_pvc [2020-10-28 23:37:12,926 INFO L130 BoogieDeclarations]: Found specification of procedure pvc_is_used [2020-10-28 23:37:12,927 INFO L130 BoogieDeclarations]: Found specification of procedure pvc_carrier [2020-10-28 23:37:12,927 INFO L130 BoogieDeclarations]: Found specification of procedure delete_unused_pvcs [2020-10-28 23:37:12,927 INFO L130 BoogieDeclarations]: Found specification of procedure get_dev_p [2020-10-28 23:37:12,927 INFO L130 BoogieDeclarations]: Found specification of procedure fr_hard_header [2020-10-28 23:37:12,927 INFO L130 BoogieDeclarations]: Found specification of procedure pvc_open [2020-10-28 23:37:12,927 INFO L130 BoogieDeclarations]: Found specification of procedure pvc_close [2020-10-28 23:37:12,927 INFO L130 BoogieDeclarations]: Found specification of procedure pvc_ioctl [2020-10-28 23:37:12,928 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2020-10-28 23:37:12,928 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-28 23:37:12,928 INFO L130 BoogieDeclarations]: Found specification of procedure pvc_xmit [2020-10-28 23:37:12,928 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2020-10-28 23:37:12,928 INFO L130 BoogieDeclarations]: Found specification of procedure fr_log_dlci_active [2020-10-28 23:37:12,928 INFO L130 BoogieDeclarations]: Found specification of procedure fr_lmi_nextseq [2020-10-28 23:37:12,929 INFO L130 BoogieDeclarations]: Found specification of procedure fr_lmi_send [2020-10-28 23:37:12,929 INFO L130 BoogieDeclarations]: Found specification of procedure fr_set_link_state [2020-10-28 23:37:12,929 INFO L130 BoogieDeclarations]: Found specification of procedure fr_timer [2020-10-28 23:37:12,929 INFO L130 BoogieDeclarations]: Found specification of procedure fr_lmi_recv [2020-10-28 23:37:12,929 INFO L130 BoogieDeclarations]: Found specification of procedure fr_rx [2020-10-28 23:37:12,929 INFO L130 BoogieDeclarations]: Found specification of procedure fr_start [2020-10-28 23:37:12,929 INFO L130 BoogieDeclarations]: Found specification of procedure fr_stop [2020-10-28 23:37:12,930 INFO L130 BoogieDeclarations]: Found specification of procedure fr_close [2020-10-28 23:37:12,930 INFO L130 BoogieDeclarations]: Found specification of procedure pvc_setup [2020-10-28 23:37:12,930 INFO L130 BoogieDeclarations]: Found specification of procedure fr_add_pvc [2020-10-28 23:37:12,930 INFO L130 BoogieDeclarations]: Found specification of procedure fr_del_pvc [2020-10-28 23:37:12,930 INFO L130 BoogieDeclarations]: Found specification of procedure fr_destroy [2020-10-28 23:37:12,930 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~int~X~int~TO~int [2020-10-28 23:37:12,930 INFO L130 BoogieDeclarations]: Found specification of procedure mod_init [2020-10-28 23:37:12,930 INFO L130 BoogieDeclarations]: Found specification of procedure mod_exit [2020-10-28 23:37:12,931 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_ndo_uninit_3 [2020-10-28 23:37:12,931 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_open_2 [2020-10-28 23:37:12,931 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_disconnect_2 [2020-10-28 23:37:12,931 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize [2020-10-28 23:37:12,931 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2020-10-28 23:37:12,931 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_ndo_init_3 [2020-10-28 23:37:12,932 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_setup_2 [2020-10-28 23:37:12,932 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~TO~VOID [2020-10-28 23:37:12,932 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-28 23:37:12,932 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_set_init [2020-10-28 23:37:12,932 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_set_add [2020-10-28 23:37:12,932 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_set_remove [2020-10-28 23:37:12,932 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_set_contains [2020-10-28 23:37:12,932 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_set_is_empty [2020-10-28 23:37:12,933 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2020-10-28 23:37:12,933 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_err_ptr [2020-10-28 23:37:12,933 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_ptr_err [2020-10-28 23:37:12,933 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err_or_null [2020-10-28 23:37:12,933 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_netdev_alloc_skb [2020-10-28 23:37:12,933 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_alloc_skb [2020-10-28 23:37:12,933 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_skb_current [2020-10-28 23:37:12,934 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_bool [2020-10-28 23:37:12,934 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_ushort [2020-10-28 23:37:12,934 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-10-28 23:37:12,934 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-28 23:37:12,934 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-28 23:37:12,934 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2020-10-28 23:37:12,934 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-28 23:37:12,935 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2020-10-28 23:37:12,935 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2020-10-28 23:37:12,935 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2020-10-28 23:37:12,935 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2020-10-28 23:37:14,398 INFO L751 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2020-10-28 23:38:57,277 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-28 23:38:57,278 INFO L298 CfgBuilder]: Removed 4 assume(true) statements. [2020-10-28 23:38:57,282 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 11:38:57 BoogieIcfgContainer [2020-10-28 23:38:57,282 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-28 23:38:57,284 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-28 23:38:57,284 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-28 23:38:57,288 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-28 23:38:57,288 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.10 11:37:09" (1/3) ... [2020-10-28 23:38:57,289 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7895c169 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.10 11:38:57, skipping insertion in model container [2020-10-28 23:38:57,289 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:37:12" (2/3) ... [2020-10-28 23:38:57,290 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7895c169 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.10 11:38:57, skipping insertion in model container [2020-10-28 23:38:57,290 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 11:38:57" (3/3) ... [2020-10-28 23:38:57,292 INFO L111 eAbstractionObserver]: Analyzing ICFG 205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--wan--hdlc_fr.ko-entry_point.cil.out.i [2020-10-28 23:38:57,304 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-28 23:38:57,312 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-28 23:38:57,326 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-28 23:38:57,361 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-28 23:38:57,361 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-28 23:38:57,361 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-28 23:38:57,361 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-28 23:38:57,362 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-28 23:38:57,362 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-28 23:38:57,362 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-28 23:38:57,362 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-28 23:38:57,407 INFO L276 IsEmpty]: Start isEmpty. Operand 1453 states. [2020-10-28 23:38:57,424 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2020-10-28 23:38:57,425 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 23:38:57,426 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 23:38:57,426 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 23:38:57,432 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 23:38:57,433 INFO L82 PathProgramCache]: Analyzing trace with hash 430440325, now seen corresponding path program 1 times [2020-10-28 23:38:57,443 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 23:38:57,444 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2019742644] [2020-10-28 23:38:57,444 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 23:38:57,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 23:38:57,957 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 23:38:58,584 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 23:39:00,374 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 23:39:00,374 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 94 [2020-10-28 23:39:00,375 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-28 23:39:00,375 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2530 [2020-10-28 23:39:00,382 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 23:39:00,382 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 23:39:00,383 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 23:39:00,383 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 55 [2020-10-28 23:39:00,383 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-28 23:39:00,383 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 8 [2020-10-28 23:39:01,216 WARN L193 SmtUtils]: Spent 665.00 ms on a formula simplification that was a NOOP. DAG size: 322 [2020-10-28 23:39:01,218 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 23:39:01,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 23:39:01,245 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 23:39:01,397 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 23:39:01,397 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 23:39:01,397 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 23:39:01,397 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 161 [2020-10-28 23:39:01,398 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 23:39:01,398 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 23:39:01,398 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 23:39:01,398 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 23:39:01,398 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 23:39:01,398 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 23:39:01,468 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-28 23:39:01,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 23:39:01,476 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 23:39:01,480 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 23:39:01,480 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-28 23:39:01,481 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 23:39:01,481 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-28 23:39:01,481 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 23:39:01,481 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 23:39:01,481 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 23:39:01,482 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 23:39:01,482 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 23:39:01,482 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 23:39:01,489 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-28 23:39:01,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 23:39:01,495 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 23:39:01,499 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 23:39:01,499 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-28 23:39:01,500 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 23:39:01,500 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-28 23:39:01,500 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 23:39:01,500 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 23:39:01,500 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 23:39:01,501 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 23:39:01,501 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 23:39:01,501 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 23:39:01,508 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-28 23:39:01,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 23:39:01,515 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 23:39:01,519 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 23:39:01,519 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-28 23:39:01,519 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 23:39:01,519 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-28 23:39:01,520 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 23:39:01,520 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 23:39:01,520 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 23:39:01,520 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 23:39:01,520 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 23:39:01,521 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 23:39:01,527 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2020-10-28 23:39:01,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 23:39:01,534 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 23:39:01,538 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 23:39:01,538 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-28 23:39:01,538 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 23:39:01,539 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-28 23:39:01,539 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 23:39:01,539 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 23:39:01,539 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 23:39:01,539 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 23:39:01,540 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 23:39:01,540 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 23:39:01,557 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2020-10-28 23:39:01,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 23:39:01,564 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 23:39:01,568 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 23:39:01,569 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-28 23:39:01,569 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 23:39:01,569 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-28 23:39:01,569 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 23:39:01,570 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 23:39:01,570 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 23:39:01,570 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 23:39:01,570 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 23:39:01,570 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 23:39:01,576 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 23:39:01,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 23:39:01,582 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 23:39:01,585 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 23:39:01,585 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 23:39:01,585 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 23:39:01,585 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-28 23:39:01,586 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 23:39:01,586 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 23:39:01,586 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 23:39:01,586 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 23:39:01,586 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 23:39:01,587 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 23:39:01,593 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2020-10-28 23:39:01,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 23:39:01,600 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 23:39:01,605 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 23:39:01,605 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-28 23:39:01,605 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 23:39:01,606 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-28 23:39:01,606 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 23:39:01,606 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 23:39:01,606 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 23:39:01,606 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 10 [2020-10-28 23:39:01,607 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 23:39:01,607 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 23:39:01,612 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 23:39:01,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 23:39:01,618 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 23:39:01,621 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 23:39:01,621 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 23:39:01,622 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 23:39:01,622 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-28 23:39:01,622 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 23:39:01,622 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 23:39:01,622 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 23:39:01,623 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 23:39:01,623 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 23:39:01,623 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 23:39:01,629 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2020-10-28 23:39:01,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 23:39:01,636 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 23:39:01,640 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 23:39:01,640 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 23:39:01,641 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 23:39:01,641 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-28 23:39:01,641 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 23:39:01,641 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 23:39:01,641 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 23:39:01,642 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-28 23:39:01,642 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 23:39:01,642 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 23:39:01,665 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2020-10-28 23:39:01,666 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2019742644] [2020-10-28 23:39:01,668 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-28 23:39:01,669 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-28 23:39:01,670 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [817448994] [2020-10-28 23:39:01,675 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-28 23:39:01,675 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 23:39:01,689 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-28 23:39:01,690 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-10-28 23:39:01,693 INFO L87 Difference]: Start difference. First operand 1453 states. Second operand 6 states. [2020-10-28 23:39:02,509 WARN L193 SmtUtils]: Spent 781.00 ms on a formula simplification that was a NOOP. DAG size: 325 [2020-10-28 23:39:03,642 WARN L193 SmtUtils]: Spent 770.00 ms on a formula simplification that was a NOOP. DAG size: 327 [2020-10-28 23:39:04,522 WARN L193 SmtUtils]: Spent 753.00 ms on a formula simplification that was a NOOP. DAG size: 324 [2020-10-28 23:40:11,851 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 23:40:11,852 INFO L93 Difference]: Finished difference Result 5063 states and 7458 transitions. [2020-10-28 23:40:11,852 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-28 23:40:11,854 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 64 [2020-10-28 23:40:11,854 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 23:40:11,923 INFO L225 Difference]: With dead ends: 5063 [2020-10-28 23:40:11,923 INFO L226 Difference]: Without dead ends: 3606 [2020-10-28 23:40:11,947 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 3.1s TimeCoverageRelationStatistics Valid=54, Invalid=102, Unknown=0, NotChecked=0, Total=156 [2020-10-28 23:40:11,974 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3606 states. [2020-10-28 23:40:12,660 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3606 to 2541. [2020-10-28 23:40:12,661 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2541 states. [2020-10-28 23:40:12,685 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2541 states to 2541 states and 3474 transitions. [2020-10-28 23:40:12,690 INFO L78 Accepts]: Start accepts. Automaton has 2541 states and 3474 transitions. Word has length 64 [2020-10-28 23:40:12,691 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 23:40:12,691 INFO L481 AbstractCegarLoop]: Abstraction has 2541 states and 3474 transitions. [2020-10-28 23:40:12,691 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-28 23:40:12,692 INFO L276 IsEmpty]: Start isEmpty. Operand 2541 states and 3474 transitions. [2020-10-28 23:40:12,705 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2020-10-28 23:40:12,706 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 23:40:12,706 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 23:40:12,706 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-28 23:40:12,706 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 23:40:12,707 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 23:40:12,707 INFO L82 PathProgramCache]: Analyzing trace with hash -1816178276, now seen corresponding path program 1 times [2020-10-28 23:40:12,707 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 23:40:12,708 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1038268961] [2020-10-28 23:40:12,708 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 23:40:12,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 23:40:12,863 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 23:40:13,314 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 23:40:13,677 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 23:40:16,718 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 23:40:16,719 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 98 [2020-10-28 23:40:16,719 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-28 23:40:16,719 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3919 [2020-10-28 23:40:16,720 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 23:40:16,720 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 23:40:16,720 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-28 23:40:16,720 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 50 [2020-10-28 23:40:16,721 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 40 [2020-10-28 23:40:16,721 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 23:40:17,593 WARN L193 SmtUtils]: Spent 741.00 ms on a formula simplification that was a NOOP. DAG size: 322 [2020-10-28 23:40:17,595 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 23:40:17,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 23:40:17,639 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 23:40:17,714 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 23:40:17,714 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 23:40:17,714 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 23:40:17,714 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 86 [2020-10-28 23:40:17,714 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 23:40:17,715 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 23:40:17,715 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 23:40:17,715 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 23:40:17,715 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 23:40:17,715 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 23:40:17,765 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-28 23:40:17,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 23:40:17,770 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 23:40:17,773 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 23:40:17,774 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-28 23:40:17,774 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 23:40:17,774 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-28 23:40:17,774 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 23:40:17,775 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 23:40:17,775 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 23:40:17,775 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 23:40:17,775 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 23:40:17,775 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 23:40:17,781 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-28 23:40:17,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 23:40:17,786 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 23:40:17,789 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 23:40:17,789 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-28 23:40:17,789 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 23:40:17,790 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-28 23:40:17,790 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 23:40:17,790 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 23:40:17,790 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 23:40:17,790 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 23:40:17,791 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 23:40:17,791 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 23:40:17,796 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-28 23:40:17,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 23:40:17,801 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 23:40:17,805 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 23:40:17,805 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-28 23:40:17,805 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 23:40:17,805 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-28 23:40:17,806 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 23:40:17,806 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 23:40:17,806 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 23:40:17,806 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 23:40:17,806 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 23:40:17,806 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 23:40:17,812 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2020-10-28 23:40:17,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 23:40:17,818 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 23:40:17,822 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 23:40:17,822 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-28 23:40:17,823 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 23:40:17,823 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-28 23:40:17,823 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 23:40:17,823 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 23:40:17,823 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 23:40:17,824 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 23:40:17,824 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 23:40:17,824 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 23:40:17,848 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2020-10-28 23:40:17,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 23:40:17,855 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 23:40:17,861 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 23:40:17,861 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-28 23:40:17,861 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 23:40:17,861 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-28 23:40:17,862 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 23:40:17,862 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 23:40:17,862 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 23:40:17,862 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 23:40:17,862 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-28 23:40:17,863 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 23:40:17,868 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 23:40:17,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 23:40:17,874 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 23:40:17,878 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 23:40:17,878 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 23:40:17,879 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 23:40:17,879 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-28 23:40:17,879 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 23:40:17,879 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 23:40:17,879 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 23:40:17,880 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 23:40:17,880 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-28 23:40:17,880 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 23:40:17,886 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2020-10-28 23:40:17,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 23:40:17,892 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 23:40:17,898 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 23:40:17,899 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-28 23:40:17,899 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 23:40:17,899 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-28 23:40:17,899 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 23:40:17,899 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 23:40:17,900 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 23:40:17,900 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 23:40:17,900 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-28 23:40:17,900 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 23:40:17,905 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 23:40:17,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 23:40:17,910 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 23:40:17,912 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 23:40:17,913 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 23:40:17,913 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 23:40:17,913 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-28 23:40:17,913 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 23:40:17,914 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 23:40:17,914 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 23:40:17,914 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 23:40:17,914 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 23:40:17,914 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 23:40:17,919 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2020-10-28 23:40:17,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 23:40:17,926 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 23:40:17,936 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 23:40:17,936 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 23:40:17,936 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 23:40:17,937 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-28 23:40:17,937 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 23:40:17,937 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 23:40:17,937 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 23:40:17,937 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 23:40:17,938 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-28 23:40:17,938 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 23:40:17,984 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2020-10-28 23:40:17,985 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1038268961] [2020-10-28 23:40:17,985 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-28 23:40:17,986 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-10-28 23:40:17,986 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1213561458] [2020-10-28 23:40:17,988 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-28 23:40:17,988 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 23:40:17,988 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-28 23:40:17,989 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-10-28 23:40:17,989 INFO L87 Difference]: Start difference. First operand 2541 states and 3474 transitions. Second operand 9 states. [2020-10-28 23:40:18,750 WARN L193 SmtUtils]: Spent 738.00 ms on a formula simplification that was a NOOP. DAG size: 325 [2020-10-28 23:40:20,736 WARN L193 SmtUtils]: Spent 818.00 ms on a formula simplification that was a NOOP. DAG size: 327 [2020-10-28 23:40:21,671 WARN L193 SmtUtils]: Spent 775.00 ms on a formula simplification that was a NOOP. DAG size: 324 [2020-10-28 23:40:29,807 WARN L193 SmtUtils]: Spent 1.54 s on a formula simplification. DAG size of input: 332 DAG size of output: 330 [2020-10-28 23:40:31,081 WARN L193 SmtUtils]: Spent 816.00 ms on a formula simplification that was a NOOP. DAG size: 330 [2020-10-28 23:40:32,078 WARN L193 SmtUtils]: Spent 773.00 ms on a formula simplification that was a NOOP. DAG size: 330 [2020-10-28 23:40:47,773 WARN L193 SmtUtils]: Spent 841.00 ms on a formula simplification that was a NOOP. DAG size: 332