/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 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=BIGGEST --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 -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 0.1.25-adbd35c [2020-10-13 00:51:25,359 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-13 00:51:25,362 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-13 00:51:25,387 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-13 00:51:25,388 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-13 00:51:25,389 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-13 00:51:25,390 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-13 00:51:25,392 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-13 00:51:25,393 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-13 00:51:25,394 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-13 00:51:25,395 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-13 00:51:25,396 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-13 00:51:25,396 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-13 00:51:25,397 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-13 00:51:25,398 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-13 00:51:25,399 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-13 00:51:25,400 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-13 00:51:25,401 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-13 00:51:25,403 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-13 00:51:25,404 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-13 00:51:25,406 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-13 00:51:25,407 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-13 00:51:25,408 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-13 00:51:25,409 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-13 00:51:25,411 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-13 00:51:25,411 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-13 00:51:25,411 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-13 00:51:25,412 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-13 00:51:25,413 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-13 00:51:25,414 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-13 00:51:25,414 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-13 00:51:25,415 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-13 00:51:25,415 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-13 00:51:25,416 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-13 00:51:25,417 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-13 00:51:25,417 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-13 00:51:25,418 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-13 00:51:25,418 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-13 00:51:25,418 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-13 00:51:25,419 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-13 00:51:25,419 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-13 00:51:25,420 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 [2020-10-13 00:51:25,442 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-13 00:51:25,442 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-13 00:51:25,444 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-13 00:51:25,444 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-13 00:51:25,444 INFO L138 SettingsManager]: * Use SBE=true [2020-10-13 00:51:25,444 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-13 00:51:25,444 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-13 00:51:25,445 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-13 00:51:25,445 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-13 00:51:25,445 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-13 00:51:25,445 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-13 00:51:25,445 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-13 00:51:25,446 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-13 00:51:25,446 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-13 00:51:25,446 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-13 00:51:25,446 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-13 00:51:25,447 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-13 00:51:25,447 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-13 00:51:25,447 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-13 00:51:25,447 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-13 00:51:25,447 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-13 00:51:25,448 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-13 00:51:25,448 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-13 00:51:25,448 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-13 00:51:25,448 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-13 00:51:25,448 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-13 00:51:25,448 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-10-13 00:51:25,449 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 -> 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=BIGGEST;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=BIGGEST;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=BIGGEST;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=BIGGEST;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=BIGGEST;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=BIGGEST;log-additional-information=true;unknown-allowed=true; [2020-10-13 00:51:25,765 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-13 00:51:25,777 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-13 00:51:25,780 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-13 00:51:25,782 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-13 00:51:25,782 INFO L275 PluginConnector]: CDTParser initialized [2020-10-13 00:51:25,783 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-linux-3.16-rc1/205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--wan--hdlc_fr.ko-entry_point.cil.out.i [2020-10-13 00:51:25,842 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/157510ea1/43575d5c54954b6cab631b0cb9d03d95/FLAGb9b235d60 [2020-10-13 00:51:26,653 INFO L306 CDTParser]: Found 1 translation units. [2020-10-13 00:51:26,653 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/ldv-linux-3.16-rc1/205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--wan--hdlc_fr.ko-entry_point.cil.out.i [2020-10-13 00:51:26,693 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/157510ea1/43575d5c54954b6cab631b0cb9d03d95/FLAGb9b235d60 [2020-10-13 00:51:27,113 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/157510ea1/43575d5c54954b6cab631b0cb9d03d95 [2020-10-13 00:51:27,122 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-13 00:51:27,124 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-13 00:51:27,125 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-13 00:51:27,125 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-13 00:51:27,129 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-13 00:51:27,130 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 12:51:27" (1/1) ... [2020-10-13 00:51:27,132 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7a8c1928 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:51:27, skipping insertion in model container [2020-10-13 00:51:27,133 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 12:51:27" (1/1) ... [2020-10-13 00:51:27,140 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-13 00:51:27,283 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-13 00:51:28,992 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-13 00:51:29,015 INFO L203 MainTranslator]: Completed pre-run [2020-10-13 00:51:29,524 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-13 00:51:29,713 INFO L208 MainTranslator]: Completed translation [2020-10-13 00:51:29,713 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:51:29 WrapperNode [2020-10-13 00:51:29,713 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-13 00:51:29,714 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-13 00:51:29,714 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-13 00:51:29,715 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-13 00:51:29,727 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:51:29" (1/1) ... [2020-10-13 00:51:29,727 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:51:29" (1/1) ... [2020-10-13 00:51:29,812 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:51:29" (1/1) ... [2020-10-13 00:51:29,812 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:51:29" (1/1) ... [2020-10-13 00:51:29,952 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:51:29" (1/1) ... [2020-10-13 00:51:29,976 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:51:29" (1/1) ... [2020-10-13 00:51:30,018 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:51:29" (1/1) ... [2020-10-13 00:51:30,055 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-13 00:51:30,056 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-13 00:51:30,056 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-13 00:51:30,056 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-13 00:51:30,057 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:51:29" (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 [2020-10-13 00:51:30,143 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-13 00:51:30,143 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-13 00:51:30,143 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~int~X~int~TO~int [2020-10-13 00:51:30,144 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~TO~VOID [2020-10-13 00:51:30,144 INFO L138 BoogieDeclarations]: Found implementation of procedure test_and_set_bit [2020-10-13 00:51:30,144 INFO L138 BoogieDeclarations]: Found implementation of procedure test_and_clear_bit [2020-10-13 00:51:30,144 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2020-10-13 00:51:30,144 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab16 [2020-10-13 00:51:30,145 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_read [2020-10-13 00:51:30,145 INFO L138 BoogieDeclarations]: Found implementation of procedure __kmalloc [2020-10-13 00:51:30,145 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2020-10-13 00:51:30,145 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2020-10-13 00:51:30,145 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_from_user [2020-10-13 00:51:30,146 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_to_user [2020-10-13 00:51:30,146 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_shared [2020-10-13 00:51:30,146 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_share_check [2020-10-13 00:51:30,146 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_is_nonlinear [2020-10-13 00:51:30,146 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_tail_pointer [2020-10-13 00:51:30,146 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_headroom [2020-10-13 00:51:30,147 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_tailroom [2020-10-13 00:51:30,147 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_reserve [2020-10-13 00:51:30,147 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_reset_network_header [2020-10-13 00:51:30,147 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-10-13 00:51:30,147 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2020-10-13 00:51:30,148 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2020-10-13 00:51:30,148 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2020-10-13 00:51:30,148 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_ulong [2020-10-13 00:51:30,148 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2020-10-13 00:51:30,148 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2020-10-13 00:51:30,148 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2020-10-13 00:51:30,149 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_trap [2020-10-13 00:51:30,149 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2020-10-13 00:51:30,149 INFO L138 BoogieDeclarations]: Found implementation of procedure unregister_netdevice [2020-10-13 00:51:30,149 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_kfree_skb_any [2020-10-13 00:51:30,149 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_ok [2020-10-13 00:51:30,149 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_dormant_on [2020-10-13 00:51:30,149 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_dormant_off [2020-10-13 00:51:30,150 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_random_addr [2020-10-13 00:51:30,150 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_hw_addr_random [2020-10-13 00:51:30,150 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_to_hdlc [2020-10-13 00:51:30,150 INFO L138 BoogieDeclarations]: Found implementation of procedure q922_to_dlci [2020-10-13 00:51:30,150 INFO L138 BoogieDeclarations]: Found implementation of procedure dlci_to_q922 [2020-10-13 00:51:30,150 INFO L138 BoogieDeclarations]: Found implementation of procedure state [2020-10-13 00:51:30,151 INFO L138 BoogieDeclarations]: Found implementation of procedure find_pvc [2020-10-13 00:51:30,151 INFO L138 BoogieDeclarations]: Found implementation of procedure add_pvc [2020-10-13 00:51:30,151 INFO L138 BoogieDeclarations]: Found implementation of procedure pvc_is_used [2020-10-13 00:51:30,151 INFO L138 BoogieDeclarations]: Found implementation of procedure pvc_carrier [2020-10-13 00:51:30,151 INFO L138 BoogieDeclarations]: Found implementation of procedure delete_unused_pvcs [2020-10-13 00:51:30,151 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dev_p [2020-10-13 00:51:30,151 INFO L138 BoogieDeclarations]: Found implementation of procedure fr_hard_header [2020-10-13 00:51:30,152 INFO L138 BoogieDeclarations]: Found implementation of procedure pvc_open [2020-10-13 00:51:30,152 INFO L138 BoogieDeclarations]: Found implementation of procedure pvc_close [2020-10-13 00:51:30,152 INFO L138 BoogieDeclarations]: Found implementation of procedure pvc_ioctl [2020-10-13 00:51:30,152 INFO L138 BoogieDeclarations]: Found implementation of procedure pvc_xmit [2020-10-13 00:51:30,152 INFO L138 BoogieDeclarations]: Found implementation of procedure fr_log_dlci_active [2020-10-13 00:51:30,152 INFO L138 BoogieDeclarations]: Found implementation of procedure fr_lmi_nextseq [2020-10-13 00:51:30,153 INFO L138 BoogieDeclarations]: Found implementation of procedure fr_lmi_send [2020-10-13 00:51:30,153 INFO L138 BoogieDeclarations]: Found implementation of procedure fr_set_link_state [2020-10-13 00:51:30,153 INFO L138 BoogieDeclarations]: Found implementation of procedure fr_timer [2020-10-13 00:51:30,153 INFO L138 BoogieDeclarations]: Found implementation of procedure fr_lmi_recv [2020-10-13 00:51:30,153 INFO L138 BoogieDeclarations]: Found implementation of procedure fr_rx [2020-10-13 00:51:30,153 INFO L138 BoogieDeclarations]: Found implementation of procedure fr_start [2020-10-13 00:51:30,153 INFO L138 BoogieDeclarations]: Found implementation of procedure fr_stop [2020-10-13 00:51:30,154 INFO L138 BoogieDeclarations]: Found implementation of procedure fr_close [2020-10-13 00:51:30,154 INFO L138 BoogieDeclarations]: Found implementation of procedure pvc_setup [2020-10-13 00:51:30,154 INFO L138 BoogieDeclarations]: Found implementation of procedure fr_add_pvc [2020-10-13 00:51:30,154 INFO L138 BoogieDeclarations]: Found implementation of procedure fr_del_pvc [2020-10-13 00:51:30,154 INFO L138 BoogieDeclarations]: Found implementation of procedure fr_destroy [2020-10-13 00:51:30,154 INFO L138 BoogieDeclarations]: Found implementation of procedure fr_ioctl [2020-10-13 00:51:30,154 INFO L138 BoogieDeclarations]: Found implementation of procedure mod_init [2020-10-13 00:51:30,155 INFO L138 BoogieDeclarations]: Found implementation of procedure mod_exit [2020-10-13 00:51:30,155 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_net_device_ops_3 [2020-10-13 00:51:30,155 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_pending_timer_1 [2020-10-13 00:51:30,155 INFO L138 BoogieDeclarations]: Found implementation of procedure choose_timer_1 [2020-10-13 00:51:30,155 INFO L138 BoogieDeclarations]: Found implementation of procedure reg_timer_1 [2020-10-13 00:51:30,155 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize_hdlc_proto_2 [2020-10-13 00:51:30,156 INFO L138 BoogieDeclarations]: Found implementation of procedure disable_suitable_timer_1 [2020-10-13 00:51:30,156 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-13 00:51:30,156 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_consume_skb_5 [2020-10-13 00:51:30,156 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kfree_skb_6 [2020-10-13 00:51:30,156 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kfree_skb_7 [2020-10-13 00:51:30,156 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kfree_skb_8 [2020-10-13 00:51:30,157 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kfree_skb_11 [2020-10-13 00:51:30,157 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_alloc_skb_12 [2020-10-13 00:51:30,157 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_netif_rx_13 [2020-10-13 00:51:30,157 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_del_timer_sync_14 [2020-10-13 00:51:30,157 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_set_init [2020-10-13 00:51:30,157 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_set_add [2020-10-13 00:51:30,157 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_set_remove [2020-10-13 00:51:30,158 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_set_contains [2020-10-13 00:51:30,158 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_set_is_empty [2020-10-13 00:51:30,158 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2020-10-13 00:51:30,158 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_err_ptr [2020-10-13 00:51:30,158 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_ptr_err [2020-10-13 00:51:30,158 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err_or_null [2020-10-13 00:51:30,158 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_skb_alloc [2020-10-13 00:51:30,159 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize [2020-10-13 00:51:30,159 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_skb_free [2020-10-13 00:51:30,159 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_skb_free_int [2020-10-13 00:51:30,159 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_alloc_skb [2020-10-13 00:51:30,159 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_netdev_alloc_skb [2020-10-13 00:51:30,159 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_skb_current [2020-10-13 00:51:30,159 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2020-10-13 00:51:30,160 INFO L138 BoogieDeclarations]: Found implementation of procedure __copy_from_user_overflow [2020-10-13 00:51:30,160 INFO L138 BoogieDeclarations]: Found implementation of procedure __copy_to_user_overflow [2020-10-13 00:51:30,160 INFO L138 BoogieDeclarations]: Found implementation of procedure __dev_kfree_skb_any [2020-10-13 00:51:30,160 INFO L138 BoogieDeclarations]: Found implementation of procedure __might_sleep [2020-10-13 00:51:30,160 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_from_user [2020-10-13 00:51:30,160 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_to_user [2020-10-13 00:51:30,160 INFO L138 BoogieDeclarations]: Found implementation of procedure add_timer [2020-10-13 00:51:30,161 INFO L138 BoogieDeclarations]: Found implementation of procedure alloc_netdev_mqs [2020-10-13 00:51:30,161 INFO L138 BoogieDeclarations]: Found implementation of procedure attach_hdlc_protocol [2020-10-13 00:51:30,161 INFO L138 BoogieDeclarations]: Found implementation of procedure capable [2020-10-13 00:51:30,161 INFO L138 BoogieDeclarations]: Found implementation of procedure del_timer_sync [2020-10-13 00:51:30,161 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_close [2020-10-13 00:51:30,161 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_queue_xmit [2020-10-13 00:51:30,161 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_type_trans [2020-10-13 00:51:30,161 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2020-10-13 00:51:30,162 INFO L138 BoogieDeclarations]: Found implementation of procedure get_random_bytes [2020-10-13 00:51:30,162 INFO L138 BoogieDeclarations]: Found implementation of procedure hdlc_change_mtu [2020-10-13 00:51:30,162 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_disconnect_2 [2020-10-13 00:51:30,162 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_ndo_init_3 [2020-10-13 00:51:30,162 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_ndo_uninit_3 [2020-10-13 00:51:30,162 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_open_2 [2020-10-13 00:51:30,162 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_setup_2 [2020-10-13 00:51:30,163 INFO L138 BoogieDeclarations]: Found implementation of procedure linkwatch_fire_event [2020-10-13 00:51:30,163 INFO L138 BoogieDeclarations]: Found implementation of procedure might_fault [2020-10-13 00:51:30,163 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_info [2020-10-13 00:51:30,163 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_warn [2020-10-13 00:51:30,163 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_off [2020-10-13 00:51:30,163 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_on [2020-10-13 00:51:30,164 INFO L138 BoogieDeclarations]: Found implementation of procedure pskb_expand_head [2020-10-13 00:51:30,164 INFO L138 BoogieDeclarations]: Found implementation of procedure register_hdlc_protocol [2020-10-13 00:51:30,164 INFO L138 BoogieDeclarations]: Found implementation of procedure register_netdevice [2020-10-13 00:51:30,164 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_clone [2020-10-13 00:51:30,164 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_pull [2020-10-13 00:51:30,164 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_push [2020-10-13 00:51:30,164 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_put [2020-10-13 00:51:30,165 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_realloc_headroom [2020-10-13 00:51:30,165 INFO L138 BoogieDeclarations]: Found implementation of procedure unregister_hdlc_protocol [2020-10-13 00:51:30,165 INFO L138 BoogieDeclarations]: Found implementation of procedure unregister_netdevice_queue [2020-10-13 00:51:30,165 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2020-10-13 00:51:30,165 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2020-10-13 00:51:30,165 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2020-10-13 00:51:30,165 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2020-10-13 00:51:30,166 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-10-13 00:51:30,166 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2020-10-13 00:51:30,166 INFO L130 BoogieDeclarations]: Found specification of procedure test_and_set_bit [2020-10-13 00:51:30,166 INFO L130 BoogieDeclarations]: Found specification of procedure test_and_clear_bit [2020-10-13 00:51:30,166 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2020-10-13 00:51:30,166 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-13 00:51:30,167 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab16 [2020-10-13 00:51:30,167 INFO L130 BoogieDeclarations]: Found specification of procedure __might_sleep [2020-10-13 00:51:30,167 INFO L130 BoogieDeclarations]: Found specification of procedure might_fault [2020-10-13 00:51:30,167 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy [2020-10-13 00:51:30,167 INFO L130 BoogieDeclarations]: Found specification of procedure memset [2020-10-13 00:51:30,167 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_read [2020-10-13 00:51:30,167 INFO L130 BoogieDeclarations]: Found specification of procedure add_timer [2020-10-13 00:51:30,167 INFO L130 BoogieDeclarations]: Found specification of procedure del_timer_sync [2020-10-13 00:51:30,168 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_del_timer_sync_14 [2020-10-13 00:51:30,168 INFO L130 BoogieDeclarations]: Found specification of procedure get_random_bytes [2020-10-13 00:51:30,168 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2020-10-13 00:51:30,168 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2020-10-13 00:51:30,168 INFO L130 BoogieDeclarations]: Found specification of procedure __kmalloc [2020-10-13 00:51:30,168 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2020-10-13 00:51:30,168 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2020-10-13 00:51:30,168 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2020-10-13 00:51:30,169 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_from_user [2020-10-13 00:51:30,169 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_to_user [2020-10-13 00:51:30,169 INFO L130 BoogieDeclarations]: Found specification of procedure __copy_from_user_overflow [2020-10-13 00:51:30,169 INFO L130 BoogieDeclarations]: Found specification of procedure __copy_to_user_overflow [2020-10-13 00:51:30,169 INFO L130 BoogieDeclarations]: Found specification of procedure copy_from_user [2020-10-13 00:51:30,169 INFO L130 BoogieDeclarations]: Found specification of procedure copy_to_user [2020-10-13 00:51:30,169 INFO L130 BoogieDeclarations]: Found specification of procedure capable [2020-10-13 00:51:30,170 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kfree_skb_6 [2020-10-13 00:51:30,170 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kfree_skb_7 [2020-10-13 00:51:30,170 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kfree_skb_8 [2020-10-13 00:51:30,170 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kfree_skb_11 [2020-10-13 00:51:30,170 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_consume_skb_5 [2020-10-13 00:51:30,170 INFO L130 BoogieDeclarations]: Found specification of procedure skb_clone [2020-10-13 00:51:30,170 INFO L130 BoogieDeclarations]: Found specification of procedure pskb_expand_head [2020-10-13 00:51:30,170 INFO L130 BoogieDeclarations]: Found specification of procedure skb_realloc_headroom [2020-10-13 00:51:30,171 INFO L130 BoogieDeclarations]: Found specification of procedure skb_shared [2020-10-13 00:51:30,171 INFO L130 BoogieDeclarations]: Found specification of procedure skb_share_check [2020-10-13 00:51:30,171 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-13 00:51:30,171 INFO L130 BoogieDeclarations]: Found specification of procedure skb_is_nonlinear [2020-10-13 00:51:30,171 INFO L130 BoogieDeclarations]: Found specification of procedure skb_tail_pointer [2020-10-13 00:51:30,171 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-10-13 00:51:30,171 INFO L130 BoogieDeclarations]: Found specification of procedure skb_put [2020-10-13 00:51:30,171 INFO L130 BoogieDeclarations]: Found specification of procedure skb_push [2020-10-13 00:51:30,172 INFO L130 BoogieDeclarations]: Found specification of procedure skb_pull [2020-10-13 00:51:30,172 INFO L130 BoogieDeclarations]: Found specification of procedure skb_headroom [2020-10-13 00:51:30,172 INFO L130 BoogieDeclarations]: Found specification of procedure skb_tailroom [2020-10-13 00:51:30,172 INFO L130 BoogieDeclarations]: Found specification of procedure skb_reserve [2020-10-13 00:51:30,172 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-10-13 00:51:30,172 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-13 00:51:30,172 INFO L130 BoogieDeclarations]: Found specification of procedure skb_reset_network_header [2020-10-13 00:51:30,172 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_alloc_skb_12 [2020-10-13 00:51:30,173 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_skb_alloc [2020-10-13 00:51:30,173 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_skb_free [2020-10-13 00:51:30,173 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_skb_free_int [2020-10-13 00:51:30,173 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-10-13 00:51:30,173 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2020-10-13 00:51:30,173 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-13 00:51:30,173 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_ulong [2020-10-13 00:51:30,173 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-13 00:51:30,174 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-10-13 00:51:30,174 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-10-13 00:51:30,174 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2020-10-13 00:51:30,174 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2020-10-13 00:51:30,174 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_ulong [2020-10-13 00:51:30,174 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2020-10-13 00:51:30,174 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2020-10-13 00:51:30,174 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_trap [2020-10-13 00:51:30,175 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_net_device_ops_3 [2020-10-13 00:51:30,175 INFO L130 BoogieDeclarations]: Found specification of procedure activate_pending_timer_1 [2020-10-13 00:51:30,175 INFO L130 BoogieDeclarations]: Found specification of procedure choose_timer_1 [2020-10-13 00:51:30,175 INFO L130 BoogieDeclarations]: Found specification of procedure reg_timer_1 [2020-10-13 00:51:30,175 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize_hdlc_proto_2 [2020-10-13 00:51:30,175 INFO L130 BoogieDeclarations]: Found specification of procedure disable_suitable_timer_1 [2020-10-13 00:51:30,175 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2020-10-13 00:51:30,175 INFO L130 BoogieDeclarations]: Found specification of procedure dev_close [2020-10-13 00:51:30,176 INFO L130 BoogieDeclarations]: Found specification of procedure dev_queue_xmit [2020-10-13 00:51:30,176 INFO L130 BoogieDeclarations]: Found specification of procedure register_netdevice [2020-10-13 00:51:30,176 INFO L130 BoogieDeclarations]: Found specification of procedure unregister_netdevice_queue [2020-10-13 00:51:30,176 INFO L130 BoogieDeclarations]: Found specification of procedure unregister_netdevice [2020-10-13 00:51:30,176 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2020-10-13 00:51:30,176 INFO L130 BoogieDeclarations]: Found specification of procedure __dev_kfree_skb_any [2020-10-13 00:51:30,176 INFO L130 BoogieDeclarations]: Found specification of procedure dev_kfree_skb_any [2020-10-13 00:51:30,176 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_netif_rx_13 [2020-10-13 00:51:30,177 INFO L130 BoogieDeclarations]: Found specification of procedure linkwatch_fire_event [2020-10-13 00:51:30,177 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_ok [2020-10-13 00:51:30,177 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_on [2020-10-13 00:51:30,177 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_off [2020-10-13 00:51:30,177 INFO L130 BoogieDeclarations]: Found specification of procedure netif_dormant_on [2020-10-13 00:51:30,177 INFO L130 BoogieDeclarations]: Found specification of procedure netif_dormant_off [2020-10-13 00:51:30,177 INFO L130 BoogieDeclarations]: Found specification of procedure ether_setup [2020-10-13 00:51:30,177 INFO L130 BoogieDeclarations]: Found specification of procedure alloc_netdev_mqs [2020-10-13 00:51:30,177 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_warn [2020-10-13 00:51:30,178 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_info [2020-10-13 00:51:30,178 INFO L130 BoogieDeclarations]: Found specification of procedure eth_type_trans [2020-10-13 00:51:30,178 INFO L130 BoogieDeclarations]: Found specification of procedure eth_random_addr [2020-10-13 00:51:30,178 INFO L130 BoogieDeclarations]: Found specification of procedure eth_hw_addr_random [2020-10-13 00:51:30,178 INFO L130 BoogieDeclarations]: Found specification of procedure register_hdlc_protocol [2020-10-13 00:51:30,178 INFO L130 BoogieDeclarations]: Found specification of procedure unregister_hdlc_protocol [2020-10-13 00:51:30,178 INFO L130 BoogieDeclarations]: Found specification of procedure dev_to_hdlc [2020-10-13 00:51:30,178 INFO L130 BoogieDeclarations]: Found specification of procedure hdlc_change_mtu [2020-10-13 00:51:30,179 INFO L130 BoogieDeclarations]: Found specification of procedure attach_hdlc_protocol [2020-10-13 00:51:30,179 INFO L130 BoogieDeclarations]: Found specification of procedure fr_ioctl [2020-10-13 00:51:30,179 INFO L130 BoogieDeclarations]: Found specification of procedure q922_to_dlci [2020-10-13 00:51:30,179 INFO L130 BoogieDeclarations]: Found specification of procedure dlci_to_q922 [2020-10-13 00:51:30,179 INFO L130 BoogieDeclarations]: Found specification of procedure state [2020-10-13 00:51:30,179 INFO L130 BoogieDeclarations]: Found specification of procedure find_pvc [2020-10-13 00:51:30,179 INFO L130 BoogieDeclarations]: Found specification of procedure add_pvc [2020-10-13 00:51:30,179 INFO L130 BoogieDeclarations]: Found specification of procedure pvc_is_used [2020-10-13 00:51:30,179 INFO L130 BoogieDeclarations]: Found specification of procedure pvc_carrier [2020-10-13 00:51:30,180 INFO L130 BoogieDeclarations]: Found specification of procedure delete_unused_pvcs [2020-10-13 00:51:30,180 INFO L130 BoogieDeclarations]: Found specification of procedure get_dev_p [2020-10-13 00:51:30,180 INFO L130 BoogieDeclarations]: Found specification of procedure fr_hard_header [2020-10-13 00:51:30,180 INFO L130 BoogieDeclarations]: Found specification of procedure pvc_open [2020-10-13 00:51:30,180 INFO L130 BoogieDeclarations]: Found specification of procedure pvc_close [2020-10-13 00:51:30,180 INFO L130 BoogieDeclarations]: Found specification of procedure pvc_ioctl [2020-10-13 00:51:30,180 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2020-10-13 00:51:30,181 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-13 00:51:30,181 INFO L130 BoogieDeclarations]: Found specification of procedure pvc_xmit [2020-10-13 00:51:30,181 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2020-10-13 00:51:30,181 INFO L130 BoogieDeclarations]: Found specification of procedure fr_log_dlci_active [2020-10-13 00:51:30,181 INFO L130 BoogieDeclarations]: Found specification of procedure fr_lmi_nextseq [2020-10-13 00:51:30,181 INFO L130 BoogieDeclarations]: Found specification of procedure fr_lmi_send [2020-10-13 00:51:30,181 INFO L130 BoogieDeclarations]: Found specification of procedure fr_set_link_state [2020-10-13 00:51:30,181 INFO L130 BoogieDeclarations]: Found specification of procedure fr_timer [2020-10-13 00:51:30,182 INFO L130 BoogieDeclarations]: Found specification of procedure fr_lmi_recv [2020-10-13 00:51:30,182 INFO L130 BoogieDeclarations]: Found specification of procedure fr_rx [2020-10-13 00:51:30,182 INFO L130 BoogieDeclarations]: Found specification of procedure fr_start [2020-10-13 00:51:30,182 INFO L130 BoogieDeclarations]: Found specification of procedure fr_stop [2020-10-13 00:51:30,182 INFO L130 BoogieDeclarations]: Found specification of procedure fr_close [2020-10-13 00:51:30,182 INFO L130 BoogieDeclarations]: Found specification of procedure pvc_setup [2020-10-13 00:51:30,182 INFO L130 BoogieDeclarations]: Found specification of procedure fr_add_pvc [2020-10-13 00:51:30,183 INFO L130 BoogieDeclarations]: Found specification of procedure fr_del_pvc [2020-10-13 00:51:30,183 INFO L130 BoogieDeclarations]: Found specification of procedure fr_destroy [2020-10-13 00:51:30,183 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~int~X~int~TO~int [2020-10-13 00:51:30,183 INFO L130 BoogieDeclarations]: Found specification of procedure mod_init [2020-10-13 00:51:30,183 INFO L130 BoogieDeclarations]: Found specification of procedure mod_exit [2020-10-13 00:51:30,183 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_ndo_uninit_3 [2020-10-13 00:51:30,183 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_open_2 [2020-10-13 00:51:30,183 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_disconnect_2 [2020-10-13 00:51:30,184 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize [2020-10-13 00:51:30,184 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2020-10-13 00:51:30,184 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_ndo_init_3 [2020-10-13 00:51:30,184 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_setup_2 [2020-10-13 00:51:30,184 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~TO~VOID [2020-10-13 00:51:30,184 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-13 00:51:30,184 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_set_init [2020-10-13 00:51:30,184 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_set_add [2020-10-13 00:51:30,185 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_set_remove [2020-10-13 00:51:30,185 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_set_contains [2020-10-13 00:51:30,185 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_set_is_empty [2020-10-13 00:51:30,185 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2020-10-13 00:51:30,185 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_err_ptr [2020-10-13 00:51:30,185 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_ptr_err [2020-10-13 00:51:30,185 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err_or_null [2020-10-13 00:51:30,185 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_netdev_alloc_skb [2020-10-13 00:51:30,186 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_alloc_skb [2020-10-13 00:51:30,186 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_skb_current [2020-10-13 00:51:30,186 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_bool [2020-10-13 00:51:30,186 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_ushort [2020-10-13 00:51:30,186 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-10-13 00:51:30,186 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-13 00:51:30,186 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-13 00:51:30,186 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2020-10-13 00:51:30,187 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-13 00:51:30,187 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2020-10-13 00:51:30,187 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2020-10-13 00:51:30,187 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2020-10-13 00:51:30,187 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2020-10-13 00:51:31,609 INFO L732 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2020-10-13 00:53:22,033 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-13 00:53:22,034 INFO L295 CfgBuilder]: Removed 4 assume(true) statements. [2020-10-13 00:53:22,044 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 12:53:22 BoogieIcfgContainer [2020-10-13 00:53:22,044 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-13 00:53:22,046 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-13 00:53:22,046 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-13 00:53:22,049 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-13 00:53:22,050 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 12:51:27" (1/3) ... [2020-10-13 00:53:22,051 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@625a893e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 12:53:22, skipping insertion in model container [2020-10-13 00:53:22,051 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:51:29" (2/3) ... [2020-10-13 00:53:22,051 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@625a893e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 12:53:22, skipping insertion in model container [2020-10-13 00:53:22,051 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 12:53:22" (3/3) ... [2020-10-13 00:53:22,053 INFO L109 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 [2020-10-13 00:53:22,064 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-13 00:53:22,074 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-13 00:53:22,090 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-13 00:53:22,119 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-10-13 00:53:22,119 INFO L376 AbstractCegarLoop]: Hoare is true [2020-10-13 00:53:22,119 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-13 00:53:22,119 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-13 00:53:22,119 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-13 00:53:22,120 INFO L380 AbstractCegarLoop]: Difference is false [2020-10-13 00:53:22,120 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-13 00:53:22,120 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-13 00:53:22,162 INFO L276 IsEmpty]: Start isEmpty. Operand 1449 states. [2020-10-13 00:53:22,177 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2020-10-13 00:53:22,177 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 00:53:22,178 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] [2020-10-13 00:53:22,179 INFO L427 AbstractCegarLoop]: === Iteration 1 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 00:53:22,184 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 00:53:22,184 INFO L82 PathProgramCache]: Analyzing trace with hash 2124356006, now seen corresponding path program 1 times [2020-10-13 00:53:22,193 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 00:53:22,194 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1400340405] [2020-10-13 00:53:22,194 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 00:53:22,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 00:53:22,742 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 00:53:23,174 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 00:53:25,674 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 00:53:25,675 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 90 [2020-10-13 00:53:25,675 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 00:53:25,675 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3040 [2020-10-13 00:53:25,678 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-13 00:53:25,679 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-13 00:53:25,679 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 50 [2020-10-13 00:53:25,679 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 36 [2020-10-13 00:53:25,679 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-10-13 00:53:26,503 WARN L193 SmtUtils]: Spent 636.00 ms on a formula simplification that was a NOOP. DAG size: 310 [2020-10-13 00:53:26,507 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 00:53:26,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 00:53:26,535 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 00:53:26,616 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 00:53:26,616 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 00:53:26,616 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 00:53:26,616 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 88 [2020-10-13 00:53:26,617 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-13 00:53:26,617 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 00:53:26,617 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 00:53:26,617 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 00:53:26,617 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 00:53:26,673 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-13 00:53:26,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 00:53:26,680 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 00:53:26,685 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 00:53:26,685 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 00:53:26,687 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 00:53:26,687 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-13 00:53:26,687 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-13 00:53:26,687 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 00:53:26,687 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 00:53:26,689 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 00:53:26,690 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-13 00:53:26,697 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-13 00:53:26,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 00:53:26,704 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 00:53:26,708 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 00:53:26,709 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 00:53:26,709 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 00:53:26,709 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-13 00:53:26,709 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-13 00:53:26,710 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 00:53:26,710 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 00:53:26,710 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 00:53:26,710 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 00:53:26,719 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-13 00:53:26,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 00:53:26,729 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 00:53:26,733 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 00:53:26,734 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 00:53:26,734 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 00:53:26,735 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-13 00:53:26,735 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-13 00:53:26,735 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 00:53:26,735 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 00:53:26,735 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 00:53:26,736 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 00:53:26,743 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2020-10-13 00:53:26,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 00:53:26,750 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 00:53:26,761 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 00:53:26,761 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 00:53:26,761 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 00:53:26,761 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-13 00:53:26,762 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-13 00:53:26,762 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 00:53:26,762 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 00:53:26,762 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 00:53:26,762 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 00:53:26,791 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2020-10-13 00:53:26,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 00:53:26,805 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 00:53:26,834 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 00:53:26,835 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-13 00:53:26,835 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 00:53:26,835 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 37 [2020-10-13 00:53:26,836 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-13 00:53:26,836 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 00:53:26,836 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 00:53:26,837 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-13 00:53:26,838 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-13 00:53:26,853 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 00:53:26,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 00:53:26,863 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 00:53:26,873 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 00:53:26,873 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 00:53:26,873 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 00:53:26,874 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-13 00:53:26,874 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-13 00:53:26,874 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 00:53:26,875 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 00:53:26,875 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-13 00:53:26,875 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 00:53:26,885 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2020-10-13 00:53:26,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 00:53:26,894 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 00:53:26,910 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 00:53:26,910 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-13 00:53:26,911 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 00:53:26,911 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-10-13 00:53:26,911 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-13 00:53:26,912 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 00:53:26,912 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 00:53:26,913 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-13 00:53:26,913 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 00:53:26,923 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 00:53:26,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 00:53:26,932 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 00:53:26,936 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 00:53:26,942 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 00:53:26,942 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 00:53:26,943 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-13 00:53:26,943 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-13 00:53:26,943 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 00:53:26,944 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 00:53:26,944 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 00:53:26,945 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 00:53:26,955 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2020-10-13 00:53:26,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 00:53:26,970 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 00:53:26,985 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 00:53:26,986 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 00:53:26,986 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 00:53:26,987 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-10-13 00:53:26,987 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-13 00:53:26,987 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 00:53:26,988 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 00:53:26,988 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-13 00:53:26,988 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 00:53:27,067 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2020-10-13 00:53:27,068 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1400340405] [2020-10-13 00:53:27,070 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 00:53:27,070 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-10-13 00:53:27,071 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [458421735] [2020-10-13 00:53:27,079 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-13 00:53:27,080 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 00:53:27,096 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-13 00:53:27,097 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-10-13 00:53:27,100 INFO L87 Difference]: Start difference. First operand 1449 states. Second operand 9 states. [2020-10-13 00:53:27,806 WARN L193 SmtUtils]: Spent 632.00 ms on a formula simplification that was a NOOP. DAG size: 313 [2020-10-13 00:53:29,062 WARN L193 SmtUtils]: Spent 617.00 ms on a formula simplification that was a NOOP. DAG size: 315 [2020-10-13 00:53:29,788 WARN L193 SmtUtils]: Spent 571.00 ms on a formula simplification that was a NOOP. DAG size: 312 [2020-10-13 00:53:36,386 WARN L193 SmtUtils]: Spent 1.18 s on a formula simplification. DAG size of input: 320 DAG size of output: 318 [2020-10-13 00:53:37,485 WARN L193 SmtUtils]: Spent 590.00 ms on a formula simplification that was a NOOP. DAG size: 318 [2020-10-13 00:53:38,286 WARN L193 SmtUtils]: Spent 615.00 ms on a formula simplification that was a NOOP. DAG size: 318 [2020-10-13 00:53:53,162 WARN L193 SmtUtils]: Spent 594.00 ms on a formula simplification that was a NOOP. DAG size: 320 [2020-10-13 00:54:58,482 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 00:54:58,483 INFO L93 Difference]: Finished difference Result 4875 states and 7182 transitions. [2020-10-13 00:54:58,484 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2020-10-13 00:54:58,485 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 62 [2020-10-13 00:54:58,486 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 00:54:58,535 INFO L225 Difference]: With dead ends: 4875 [2020-10-13 00:54:58,535 INFO L226 Difference]: Without dead ends: 3393 [2020-10-13 00:54:58,555 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 49 ImplicationChecksByTransitivity, 5.8s TimeCoverageRelationStatistics Valid=108, Invalid=272, Unknown=0, NotChecked=0, Total=380 [2020-10-13 00:54:58,579 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3393 states. [2020-10-13 00:54:59,159 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3393 to 2757. [2020-10-13 00:54:59,160 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2757 states. [2020-10-13 00:54:59,179 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2757 states to 2757 states and 3813 transitions. [2020-10-13 00:54:59,182 INFO L78 Accepts]: Start accepts. Automaton has 2757 states and 3813 transitions. Word has length 62 [2020-10-13 00:54:59,183 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 00:54:59,183 INFO L479 AbstractCegarLoop]: Abstraction has 2757 states and 3813 transitions. [2020-10-13 00:54:59,183 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-13 00:54:59,183 INFO L276 IsEmpty]: Start isEmpty. Operand 2757 states and 3813 transitions. [2020-10-13 00:54:59,194 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2020-10-13 00:54:59,195 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 00:54:59,195 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 00:54:59,196 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-13 00:54:59,196 INFO L427 AbstractCegarLoop]: === Iteration 2 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 00:54:59,196 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 00:54:59,196 INFO L82 PathProgramCache]: Analyzing trace with hash 1347607018, now seen corresponding path program 1 times [2020-10-13 00:54:59,196 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 00:54:59,197 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1915434336] [2020-10-13 00:54:59,197 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 00:54:59,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 00:54:59,322 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 00:54:59,406 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 00:54:59,515 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 00:54:59,994 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 00:55:02,390 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 00:55:02,391 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 129 [2020-10-13 00:55:02,391 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-13 00:55:02,392 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3119 [2020-10-13 00:55:02,392 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-13 00:55:02,392 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 00:55:02,392 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 55 [2020-10-13 00:55:02,393 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 46 [2020-10-13 00:55:02,393 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 00:55:03,117 WARN L193 SmtUtils]: Spent 590.00 ms on a formula simplification that was a NOOP. DAG size: 310 [2020-10-13 00:55:03,118 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 00:55:03,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 00:55:03,138 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 00:55:03,233 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 00:55:03,234 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 00:55:03,234 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 00:55:03,234 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 105 [2020-10-13 00:55:03,234 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-13 00:55:03,234 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 00:55:03,235 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 00:55:03,235 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 00:55:03,235 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 00:55:03,285 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-13 00:55:03,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 00:55:03,290 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 00:55:03,294 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 00:55:03,294 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 00:55:03,294 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 00:55:03,295 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-13 00:55:03,295 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-13 00:55:03,295 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 00:55:03,295 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 00:55:03,296 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 00:55:03,296 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 00:55:03,303 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-13 00:55:03,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 00:55:03,308 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 00:55:03,311 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 00:55:03,312 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 00:55:03,312 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 00:55:03,312 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-13 00:55:03,312 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-13 00:55:03,313 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 00:55:03,313 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 00:55:03,313 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 00:55:03,313 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 00:55:03,319 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-13 00:55:03,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 00:55:03,324 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 00:55:03,331 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 00:55:03,332 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 00:55:03,332 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 00:55:03,332 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-13 00:55:03,332 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-13 00:55:03,332 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 00:55:03,333 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 00:55:03,333 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 00:55:03,333 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 00:55:03,338 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2020-10-13 00:55:03,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 00:55:03,344 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 00:55:03,347 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 00:55:03,347 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 00:55:03,347 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 00:55:03,348 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-13 00:55:03,348 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-13 00:55:03,348 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 00:55:03,348 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 00:55:03,348 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 00:55:03,348 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 00:55:03,367 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2020-10-13 00:55:03,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 00:55:03,373 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 00:55:03,377 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 00:55:03,377 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-13 00:55:03,378 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 00:55:03,378 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-13 00:55:03,378 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-13 00:55:03,378 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 00:55:03,378 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 00:55:03,379 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 00:55:03,379 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 00:55:03,383 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 00:55:03,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 00:55:03,388 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 00:55:03,390 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 00:55:03,391 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 00:55:03,391 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 00:55:03,391 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-13 00:55:03,391 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-13 00:55:03,391 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 00:55:03,392 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 00:55:03,392 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 00:55:03,392 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 00:55:03,423 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-10-13 00:55:03,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 00:55:03,443 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 00:55:03,456 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 00:55:03,532 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 00:55:03,533 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 29 [2020-10-13 00:55:03,533 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 00:55:03,533 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 101 [2020-10-13 00:55:03,533 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-13 00:55:03,533 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 00:55:03,534 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 00:55:03,534 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 26 [2020-10-13 00:55:03,534 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 00:55:03,570 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-13 00:55:03,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 00:55:03,578 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 00:55:03,582 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 00:55:03,598 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 00:55:03,598 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 20 [2020-10-13 00:55:03,599 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 00:55:03,599 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-10-13 00:55:03,599 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-13 00:55:03,599 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 00:55:03,600 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-13 00:55:03,600 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-13 00:55:03,600 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 00:55:03,606 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 00:55:03,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 00:55:03,613 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 00:55:03,624 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 00:55:03,624 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-13 00:55:03,624 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 00:55:03,625 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-13 00:55:03,625 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-13 00:55:03,625 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 00:55:03,625 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-13 00:55:03,626 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-13 00:55:03,626 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 00:55:03,650 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2020-10-13 00:55:03,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 00:55:03,659 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 00:55:03,662 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 00:55:03,662 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-13 00:55:03,663 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 00:55:03,663 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-13 00:55:03,663 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-13 00:55:03,663 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 00:55:03,663 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 10 [2020-10-13 00:55:03,664 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 00:55:03,664 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 00:55:03,668 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 00:55:03,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 00:55:03,672 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 00:55:03,674 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 00:55:03,674 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 00:55:03,674 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 00:55:03,675 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-13 00:55:03,675 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-13 00:55:03,675 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 00:55:03,675 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 00:55:03,675 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 00:55:03,676 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 00:55:03,680 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-10-13 00:55:03,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 00:55:03,685 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 00:55:03,688 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 00:55:03,688 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 00:55:03,688 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 00:55:03,688 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-13 00:55:03,689 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-13 00:55:03,689 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 00:55:03,689 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-13 00:55:03,689 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 00:55:03,690 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 00:55:03,717 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2020-10-13 00:55:03,717 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1915434336] [2020-10-13 00:55:03,718 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 00:55:03,718 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-10-13 00:55:03,718 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [647646257] [2020-10-13 00:55:03,720 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-13 00:55:03,720 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 00:55:03,721 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-13 00:55:03,721 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2020-10-13 00:55:03,721 INFO L87 Difference]: Start difference. First operand 2757 states and 3813 transitions. Second operand 9 states. [2020-10-13 00:55:04,350 WARN L193 SmtUtils]: Spent 614.00 ms on a formula simplification that was a NOOP. DAG size: 313 [2020-10-13 00:55:05,519 WARN L193 SmtUtils]: Spent 587.00 ms on a formula simplification that was a NOOP. DAG size: 315 [2020-10-13 00:55:06,218 WARN L193 SmtUtils]: Spent 574.00 ms on a formula simplification that was a NOOP. DAG size: 312 [2020-10-13 00:55:12,090 WARN L193 SmtUtils]: Spent 598.00 ms on a formula simplification that was a NOOP. DAG size: 319 [2020-10-13 00:55:28,145 WARN L193 SmtUtils]: Spent 589.00 ms on a formula simplification that was a NOOP. DAG size: 318