/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=WIDESTAMONGSMALL --traceabstraction.additional.smt.options tolerance=0.4 --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_safes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--wan--x25_asy.ko-entry_point.cil.out.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-adbd35c [2020-10-14 13:52:35,562 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-14 13:52:35,565 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-14 13:52:35,592 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-14 13:52:35,593 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-14 13:52:35,594 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-14 13:52:35,595 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-14 13:52:35,597 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-14 13:52:35,598 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-14 13:52:35,599 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-14 13:52:35,600 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-14 13:52:35,601 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-14 13:52:35,602 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-14 13:52:35,602 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-14 13:52:35,603 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-14 13:52:35,605 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-14 13:52:35,605 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-14 13:52:35,606 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-14 13:52:35,608 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-14 13:52:35,610 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-14 13:52:35,612 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-14 13:52:35,613 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-14 13:52:35,614 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-14 13:52:35,615 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-14 13:52:35,618 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-14 13:52:35,618 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-14 13:52:35,618 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-14 13:52:35,619 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-14 13:52:35,620 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-14 13:52:35,620 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-14 13:52:35,621 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-14 13:52:35,621 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-14 13:52:35,622 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-14 13:52:35,623 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-14 13:52:35,624 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-14 13:52:35,624 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-14 13:52:35,625 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-14 13:52:35,625 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-14 13:52:35,625 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-14 13:52:35,626 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-14 13:52:35,627 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-14 13:52:35,628 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 [2020-10-14 13:52:35,651 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-14 13:52:35,651 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-14 13:52:35,653 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-14 13:52:35,653 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-14 13:52:35,653 INFO L138 SettingsManager]: * Use SBE=true [2020-10-14 13:52:35,653 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-14 13:52:35,653 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-14 13:52:35,654 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-14 13:52:35,654 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-14 13:52:35,654 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-14 13:52:35,654 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-14 13:52:35,654 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-14 13:52:35,655 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-14 13:52:35,655 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-14 13:52:35,655 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-14 13:52:35,655 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-14 13:52:35,655 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-14 13:52:35,656 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-14 13:52:35,656 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-14 13:52:35,656 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-14 13:52:35,656 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-14 13:52:35,656 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-14 13:52:35,657 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-14 13:52:35,657 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-14 13:52:35,657 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-14 13:52:35,657 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-14 13:52:35,657 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-10-14 13:52:35,658 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=WIDESTAMONGSMALL;tolerance=0.4;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=WIDESTAMONGSMALL;tolerance=0.4;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=WIDESTAMONGSMALL;tolerance=0.4;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=WIDESTAMONGSMALL;tolerance=0.4;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=WIDESTAMONGSMALL;tolerance=0.4;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=WIDESTAMONGSMALL;tolerance=0.4;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=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true;unknown-allowed=true; [2020-10-14 13:52:35,974 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-14 13:52:35,987 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-14 13:52:35,990 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-14 13:52:35,992 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-14 13:52:35,993 INFO L275 PluginConnector]: CDTParser initialized [2020-10-14 13:52:35,993 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-linux-3.16-rc1/205_9a_array_safes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--wan--x25_asy.ko-entry_point.cil.out.i [2020-10-14 13:52:36,069 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/c87796bdc/a915b76b1d89450d90e67ebc88c5b2ad/FLAG48daf10ca [2020-10-14 13:52:36,922 INFO L306 CDTParser]: Found 1 translation units. [2020-10-14 13:52:36,922 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/ldv-linux-3.16-rc1/205_9a_array_safes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--wan--x25_asy.ko-entry_point.cil.out.i [2020-10-14 13:52:36,965 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/c87796bdc/a915b76b1d89450d90e67ebc88c5b2ad/FLAG48daf10ca [2020-10-14 13:52:37,417 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/c87796bdc/a915b76b1d89450d90e67ebc88c5b2ad [2020-10-14 13:52:37,426 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-14 13:52:37,427 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-14 13:52:37,428 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-14 13:52:37,429 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-14 13:52:37,432 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-14 13:52:37,433 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 01:52:37" (1/1) ... [2020-10-14 13:52:37,437 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6f3798bc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 01:52:37, skipping insertion in model container [2020-10-14 13:52:37,438 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 01:52:37" (1/1) ... [2020-10-14 13:52:37,447 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-14 13:52:37,573 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-14 13:52:39,514 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-14 13:52:39,558 INFO L203 MainTranslator]: Completed pre-run [2020-10-14 13:52:39,941 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-14 13:52:40,221 INFO L208 MainTranslator]: Completed translation [2020-10-14 13:52:40,222 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 01:52:40 WrapperNode [2020-10-14 13:52:40,222 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-14 13:52:40,223 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-14 13:52:40,223 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-14 13:52:40,223 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-14 13:52:40,236 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 01:52:40" (1/1) ... [2020-10-14 13:52:40,236 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 01:52:40" (1/1) ... [2020-10-14 13:52:40,302 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 01:52:40" (1/1) ... [2020-10-14 13:52:40,302 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 01:52:40" (1/1) ... [2020-10-14 13:52:40,403 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 01:52:40" (1/1) ... [2020-10-14 13:52:40,432 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 01:52:40" (1/1) ... [2020-10-14 13:52:40,465 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 01:52:40" (1/1) ... [2020-10-14 13:52:40,495 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-14 13:52:40,496 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-14 13:52:40,496 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-14 13:52:40,496 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-14 13:52:40,497 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 01:52:40" (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 [2020-10-14 13:52:40,569 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-14 13:52:40,569 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-14 13:52:40,570 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~int~TO~int [2020-10-14 13:52:40,570 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2020-10-14 13:52:40,570 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_bit [2020-10-14 13:52:40,570 INFO L138 BoogieDeclarations]: Found implementation of procedure test_and_set_bit [2020-10-14 13:52:40,571 INFO L138 BoogieDeclarations]: Found implementation of procedure test_and_clear_bit [2020-10-14 13:52:40,571 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2020-10-14 13:52:40,571 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2020-10-14 13:52:40,571 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2020-10-14 13:52:40,571 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock_bh [2020-10-14 13:52:40,572 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2020-10-14 13:52:40,572 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_bh [2020-10-14 13:52:40,572 INFO L138 BoogieDeclarations]: Found implementation of procedure __kmalloc [2020-10-14 13:52:40,572 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2020-10-14 13:52:40,572 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc_array [2020-10-14 13:52:40,572 INFO L138 BoogieDeclarations]: Found implementation of procedure kcalloc [2020-10-14 13:52:40,573 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_to_user [2020-10-14 13:52:40,573 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_reset_mac_header [2020-10-14 13:52:40,574 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-10-14 13:52:40,574 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2020-10-14 13:52:40,575 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2020-10-14 13:52:40,575 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2020-10-14 13:52:40,575 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_ulong [2020-10-14 13:52:40,575 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2020-10-14 13:52:40,575 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2020-10-14 13:52:40,575 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2020-10-14 13:52:40,576 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_trap [2020-10-14 13:52:40,576 INFO L138 BoogieDeclarations]: Found implementation of procedure compat_ptr [2020-10-14 13:52:40,576 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2020-10-14 13:52:40,576 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2020-10-14 13:52:40,576 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_start_queue [2020-10-14 13:52:40,576 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_start_queue [2020-10-14 13:52:40,577 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_wake_queue [2020-10-14 13:52:40,577 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2020-10-14 13:52:40,577 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_stop_queue [2020-10-14 13:52:40,577 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2020-10-14 13:52:40,577 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_queue_stopped [2020-10-14 13:52:40,577 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_queue_stopped [2020-10-14 13:52:40,578 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_running [2020-10-14 13:52:40,578 INFO L138 BoogieDeclarations]: Found implementation of procedure x25_type_trans [2020-10-14 13:52:40,578 INFO L138 BoogieDeclarations]: Found implementation of procedure x25_asy_alloc [2020-10-14 13:52:40,578 INFO L138 BoogieDeclarations]: Found implementation of procedure x25_asy_free [2020-10-14 13:52:40,578 INFO L138 BoogieDeclarations]: Found implementation of procedure x25_asy_change_mtu [2020-10-14 13:52:40,578 INFO L138 BoogieDeclarations]: Found implementation of procedure x25_asy_lock [2020-10-14 13:52:40,579 INFO L138 BoogieDeclarations]: Found implementation of procedure x25_asy_unlock [2020-10-14 13:52:40,579 INFO L138 BoogieDeclarations]: Found implementation of procedure x25_asy_bump [2020-10-14 13:52:40,579 INFO L138 BoogieDeclarations]: Found implementation of procedure x25_asy_encaps [2020-10-14 13:52:40,579 INFO L138 BoogieDeclarations]: Found implementation of procedure x25_asy_write_wakeup [2020-10-14 13:52:40,579 INFO L138 BoogieDeclarations]: Found implementation of procedure x25_asy_timeout [2020-10-14 13:52:40,579 INFO L138 BoogieDeclarations]: Found implementation of procedure x25_asy_xmit [2020-10-14 13:52:40,580 INFO L138 BoogieDeclarations]: Found implementation of procedure x25_asy_data_indication [2020-10-14 13:52:40,580 INFO L138 BoogieDeclarations]: Found implementation of procedure x25_asy_data_transmit [2020-10-14 13:52:40,580 INFO L138 BoogieDeclarations]: Found implementation of procedure x25_asy_connected [2020-10-14 13:52:40,580 INFO L138 BoogieDeclarations]: Found implementation of procedure x25_asy_disconnected [2020-10-14 13:52:40,580 INFO L138 BoogieDeclarations]: Found implementation of procedure x25_asy_open [2020-10-14 13:52:40,581 INFO L138 BoogieDeclarations]: Found implementation of procedure x25_asy_close [2020-10-14 13:52:40,581 INFO L138 BoogieDeclarations]: Found implementation of procedure x25_asy_receive_buf [2020-10-14 13:52:40,581 INFO L138 BoogieDeclarations]: Found implementation of procedure x25_asy_open_tty [2020-10-14 13:52:40,581 INFO L138 BoogieDeclarations]: Found implementation of procedure x25_asy_close_tty [2020-10-14 13:52:40,581 INFO L138 BoogieDeclarations]: Found implementation of procedure x25_asy_esc [2020-10-14 13:52:40,581 INFO L138 BoogieDeclarations]: Found implementation of procedure x25_asy_unesc [2020-10-14 13:52:40,581 INFO L138 BoogieDeclarations]: Found implementation of procedure x25_asy_ioctl [2020-10-14 13:52:40,582 INFO L138 BoogieDeclarations]: Found implementation of procedure x25_asy_compat_ioctl [2020-10-14 13:52:40,582 INFO L138 BoogieDeclarations]: Found implementation of procedure x25_asy_open_dev [2020-10-14 13:52:40,582 INFO L138 BoogieDeclarations]: Found implementation of procedure x25_asy_setup [2020-10-14 13:52:40,582 INFO L138 BoogieDeclarations]: Found implementation of procedure init_x25_asy [2020-10-14 13:52:40,582 INFO L138 BoogieDeclarations]: Found implementation of procedure exit_x25_asy [2020-10-14 13:52:40,582 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_target_type_1 [2020-10-14 13:52:40,583 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize_lapb_register_struct_3 [2020-10-14 13:52:40,583 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_net_device_ops_2 [2020-10-14 13:52:40,583 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-14 13:52:40,583 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_consume_skb_5 [2020-10-14 13:52:40,583 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kfree_skb_6 [2020-10-14 13:52:40,583 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kfree_skb_7 [2020-10-14 13:52:40,584 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kfree_skb_8 [2020-10-14 13:52:40,584 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kfree_skb_11 [2020-10-14 13:52:40,584 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_register_netdev_12 [2020-10-14 13:52:40,584 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_netdev_13 [2020-10-14 13:52:40,584 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_alloc_skb_14 [2020-10-14 13:52:40,584 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kfree_skb_15 [2020-10-14 13:52:40,584 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_netif_rx_16 [2020-10-14 13:52:40,585 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kfree_skb_17 [2020-10-14 13:52:40,585 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kfree_skb_18 [2020-10-14 13:52:40,585 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kfree_skb_19 [2020-10-14 13:52:40,585 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kfree_skb_20 [2020-10-14 13:52:40,585 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_netif_rx_21 [2020-10-14 13:52:40,585 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kfree_skb_22 [2020-10-14 13:52:40,586 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_netif_rx_24 [2020-10-14 13:52:40,586 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_netif_rx_26 [2020-10-14 13:52:40,586 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_unregister_netdev_27 [2020-10-14 13:52:40,586 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_netdev_28 [2020-10-14 13:52:40,586 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_set_init [2020-10-14 13:52:40,586 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_set_add [2020-10-14 13:52:40,586 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_set_remove [2020-10-14 13:52:40,587 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_set_contains [2020-10-14 13:52:40,587 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_set_is_empty [2020-10-14 13:52:40,587 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2020-10-14 13:52:40,587 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_err_ptr [2020-10-14 13:52:40,587 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_ptr_err [2020-10-14 13:52:40,587 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err_or_null [2020-10-14 13:52:40,587 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_skb_alloc [2020-10-14 13:52:40,588 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize [2020-10-14 13:52:40,588 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_skb_free [2020-10-14 13:52:40,588 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_skb_free_int [2020-10-14 13:52:40,588 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_alloc_skb [2020-10-14 13:52:40,588 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_netdev_alloc_skb [2020-10-14 13:52:40,588 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_skb_current [2020-10-14 13:52:40,588 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2020-10-14 13:52:40,589 INFO L138 BoogieDeclarations]: Found implementation of procedure __copy_to_user_overflow [2020-10-14 13:52:40,589 INFO L138 BoogieDeclarations]: Found implementation of procedure __netif_schedule [2020-10-14 13:52:40,589 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2020-10-14 13:52:40,589 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_to_user [2020-10-14 13:52:40,589 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock [2020-10-14 13:52:40,589 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock_bh [2020-10-14 13:52:40,589 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_unlock [2020-10-14 13:52:40,590 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_unlock_bh [2020-10-14 13:52:40,590 INFO L138 BoogieDeclarations]: Found implementation of procedure alloc_netdev_mqs [2020-10-14 13:52:40,590 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_close [2020-10-14 13:52:40,590 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2020-10-14 13:52:40,590 INFO L138 BoogieDeclarations]: Found implementation of procedure lapb_connect_request [2020-10-14 13:52:40,590 INFO L138 BoogieDeclarations]: Found implementation of procedure lapb_data_received [2020-10-14 13:52:40,590 INFO L138 BoogieDeclarations]: Found implementation of procedure lapb_data_request [2020-10-14 13:52:40,591 INFO L138 BoogieDeclarations]: Found implementation of procedure lapb_disconnect_request [2020-10-14 13:52:40,591 INFO L138 BoogieDeclarations]: Found implementation of procedure lapb_register [2020-10-14 13:52:40,591 INFO L138 BoogieDeclarations]: Found implementation of procedure lapb_unregister [2020-10-14 13:52:40,591 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_ndo_init_2 [2020-10-14 13:52:40,591 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_ndo_uninit_2 [2020-10-14 13:52:40,591 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_probe_3 [2020-10-14 13:52:40,591 INFO L138 BoogieDeclarations]: Found implementation of procedure might_fault [2020-10-14 13:52:40,592 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_err [2020-10-14 13:52:40,592 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_warn [2020-10-14 13:52:40,592 INFO L138 BoogieDeclarations]: Found implementation of procedure printk [2020-10-14 13:52:40,592 INFO L138 BoogieDeclarations]: Found implementation of procedure register_netdev [2020-10-14 13:52:40,592 INFO L138 BoogieDeclarations]: Found implementation of procedure rtnl_lock [2020-10-14 13:52:40,593 INFO L138 BoogieDeclarations]: Found implementation of procedure rtnl_unlock [2020-10-14 13:52:40,593 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_pull [2020-10-14 13:52:40,593 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_push [2020-10-14 13:52:40,593 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_put [2020-10-14 13:52:40,593 INFO L138 BoogieDeclarations]: Found implementation of procedure tty_chars_in_buffer [2020-10-14 13:52:40,593 INFO L138 BoogieDeclarations]: Found implementation of procedure tty_driver_flush_buffer [2020-10-14 13:52:40,594 INFO L138 BoogieDeclarations]: Found implementation of procedure tty_hangup [2020-10-14 13:52:40,594 INFO L138 BoogieDeclarations]: Found implementation of procedure tty_ldisc_flush [2020-10-14 13:52:40,594 INFO L138 BoogieDeclarations]: Found implementation of procedure tty_mode_ioctl [2020-10-14 13:52:40,594 INFO L138 BoogieDeclarations]: Found implementation of procedure tty_register_ldisc [2020-10-14 13:52:40,594 INFO L138 BoogieDeclarations]: Found implementation of procedure tty_unregister_ldisc [2020-10-14 13:52:40,595 INFO L138 BoogieDeclarations]: Found implementation of procedure unregister_netdev [2020-10-14 13:52:40,595 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2020-10-14 13:52:40,595 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2020-10-14 13:52:40,595 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2020-10-14 13:52:40,595 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2020-10-14 13:52:40,595 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-10-14 13:52:40,596 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2020-10-14 13:52:40,596 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2020-10-14 13:52:40,596 INFO L130 BoogieDeclarations]: Found specification of procedure clear_bit [2020-10-14 13:52:40,596 INFO L130 BoogieDeclarations]: Found specification of procedure test_and_set_bit [2020-10-14 13:52:40,597 INFO L130 BoogieDeclarations]: Found specification of procedure test_and_clear_bit [2020-10-14 13:52:40,597 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2020-10-14 13:52:40,597 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-14 13:52:40,597 INFO L130 BoogieDeclarations]: Found specification of procedure printk [2020-10-14 13:52:40,597 INFO L130 BoogieDeclarations]: Found specification of procedure might_fault [2020-10-14 13:52:40,597 INFO L130 BoogieDeclarations]: Found specification of procedure sprintf [2020-10-14 13:52:40,597 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2020-10-14 13:52:40,598 INFO L130 BoogieDeclarations]: Found specification of procedure strlen [2020-10-14 13:52:40,598 INFO L130 BoogieDeclarations]: Found specification of procedure __xchg_wrong_size [2020-10-14 13:52:40,598 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2020-10-14 13:52:40,598 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock [2020-10-14 13:52:40,598 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock_bh [2020-10-14 13:52:40,598 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_unlock [2020-10-14 13:52:40,599 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_unlock_bh [2020-10-14 13:52:40,599 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2020-10-14 13:52:40,599 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2020-10-14 13:52:40,599 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock_bh [2020-10-14 13:52:40,599 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2020-10-14 13:52:40,599 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_bh [2020-10-14 13:52:40,600 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2020-10-14 13:52:40,600 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2020-10-14 13:52:40,600 INFO L130 BoogieDeclarations]: Found specification of procedure __kmalloc [2020-10-14 13:52:40,600 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2020-10-14 13:52:40,600 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc_array [2020-10-14 13:52:40,600 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_calloc [2020-10-14 13:52:40,600 INFO L130 BoogieDeclarations]: Found specification of procedure kcalloc [2020-10-14 13:52:40,601 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_to_user [2020-10-14 13:52:40,601 INFO L130 BoogieDeclarations]: Found specification of procedure __copy_to_user_overflow [2020-10-14 13:52:40,601 INFO L130 BoogieDeclarations]: Found specification of procedure copy_to_user [2020-10-14 13:52:40,601 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kfree_skb_6 [2020-10-14 13:52:40,601 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kfree_skb_7 [2020-10-14 13:52:40,601 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kfree_skb_8 [2020-10-14 13:52:40,601 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kfree_skb_11 [2020-10-14 13:52:40,602 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kfree_skb_15 [2020-10-14 13:52:40,602 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kfree_skb_17 [2020-10-14 13:52:40,602 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kfree_skb_18 [2020-10-14 13:52:40,602 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kfree_skb_19 [2020-10-14 13:52:40,602 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kfree_skb_20 [2020-10-14 13:52:40,602 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kfree_skb_22 [2020-10-14 13:52:40,602 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_consume_skb_5 [2020-10-14 13:52:40,603 INFO L130 BoogieDeclarations]: Found specification of procedure skb_put [2020-10-14 13:52:40,603 INFO L130 BoogieDeclarations]: Found specification of procedure skb_push [2020-10-14 13:52:40,603 INFO L130 BoogieDeclarations]: Found specification of procedure skb_pull [2020-10-14 13:52:40,603 INFO L130 BoogieDeclarations]: Found specification of procedure skb_reset_mac_header [2020-10-14 13:52:40,603 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-10-14 13:52:40,603 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-14 13:52:40,603 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_alloc_skb_14 [2020-10-14 13:52:40,604 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_skb_alloc [2020-10-14 13:52:40,604 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_skb_free [2020-10-14 13:52:40,604 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_skb_free_int [2020-10-14 13:52:40,604 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-10-14 13:52:40,604 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2020-10-14 13:52:40,605 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-14 13:52:40,605 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uint [2020-10-14 13:52:40,605 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_ulong [2020-10-14 13:52:40,605 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-14 13:52:40,605 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-10-14 13:52:40,605 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-10-14 13:52:40,605 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2020-10-14 13:52:40,606 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2020-10-14 13:52:40,606 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2020-10-14 13:52:40,606 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_ulong [2020-10-14 13:52:40,606 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2020-10-14 13:52:40,606 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2020-10-14 13:52:40,606 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_trap [2020-10-14 13:52:40,606 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_target_type_1 [2020-10-14 13:52:40,607 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize_lapb_register_struct_3 [2020-10-14 13:52:40,607 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_net_device_ops_2 [2020-10-14 13:52:40,607 INFO L130 BoogieDeclarations]: Found specification of procedure tty_chars_in_buffer [2020-10-14 13:52:40,607 INFO L130 BoogieDeclarations]: Found specification of procedure tty_driver_flush_buffer [2020-10-14 13:52:40,607 INFO L130 BoogieDeclarations]: Found specification of procedure tty_hangup [2020-10-14 13:52:40,607 INFO L130 BoogieDeclarations]: Found specification of procedure tty_ldisc_flush [2020-10-14 13:52:40,607 INFO L130 BoogieDeclarations]: Found specification of procedure tty_mode_ioctl [2020-10-14 13:52:40,608 INFO L130 BoogieDeclarations]: Found specification of procedure tty_register_ldisc [2020-10-14 13:52:40,608 INFO L130 BoogieDeclarations]: Found specification of procedure tty_unregister_ldisc [2020-10-14 13:52:40,608 INFO L130 BoogieDeclarations]: Found specification of procedure compat_ptr [2020-10-14 13:52:40,608 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2020-10-14 13:52:40,608 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2020-10-14 13:52:40,608 INFO L130 BoogieDeclarations]: Found specification of procedure dev_close [2020-10-14 13:52:40,608 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2020-10-14 13:52:40,608 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_netdev_13 [2020-10-14 13:52:40,609 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_netdev_28 [2020-10-14 13:52:40,609 INFO L130 BoogieDeclarations]: Found specification of procedure __netif_schedule [2020-10-14 13:52:40,609 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_start_queue [2020-10-14 13:52:40,609 INFO L130 BoogieDeclarations]: Found specification of procedure netif_start_queue [2020-10-14 13:52:40,609 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_wake_queue [2020-10-14 13:52:40,609 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2020-10-14 13:52:40,610 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_stop_queue [2020-10-14 13:52:40,610 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-14 13:52:40,610 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2020-10-14 13:52:40,610 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_queue_stopped [2020-10-14 13:52:40,610 INFO L130 BoogieDeclarations]: Found specification of procedure netif_queue_stopped [2020-10-14 13:52:40,610 INFO L130 BoogieDeclarations]: Found specification of procedure netif_running [2020-10-14 13:52:40,611 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_netif_rx_16 [2020-10-14 13:52:40,611 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_netif_rx_21 [2020-10-14 13:52:40,611 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_netif_rx_24 [2020-10-14 13:52:40,611 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_netif_rx_26 [2020-10-14 13:52:40,611 INFO L130 BoogieDeclarations]: Found specification of procedure alloc_netdev_mqs [2020-10-14 13:52:40,612 INFO L130 BoogieDeclarations]: Found specification of procedure register_netdev [2020-10-14 13:52:40,612 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_register_netdev_12 [2020-10-14 13:52:40,612 INFO L130 BoogieDeclarations]: Found specification of procedure unregister_netdev [2020-10-14 13:52:40,612 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_unregister_netdev_27 [2020-10-14 13:52:40,612 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_err [2020-10-14 13:52:40,612 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_warn [2020-10-14 13:52:40,612 INFO L130 BoogieDeclarations]: Found specification of procedure lapb_register [2020-10-14 13:52:40,613 INFO L130 BoogieDeclarations]: Found specification of procedure lapb_unregister [2020-10-14 13:52:40,613 INFO L130 BoogieDeclarations]: Found specification of procedure lapb_connect_request [2020-10-14 13:52:40,613 INFO L130 BoogieDeclarations]: Found specification of procedure lapb_disconnect_request [2020-10-14 13:52:40,613 INFO L130 BoogieDeclarations]: Found specification of procedure lapb_data_request [2020-10-14 13:52:40,613 INFO L130 BoogieDeclarations]: Found specification of procedure lapb_data_received [2020-10-14 13:52:40,613 INFO L130 BoogieDeclarations]: Found specification of procedure rtnl_lock [2020-10-14 13:52:40,613 INFO L130 BoogieDeclarations]: Found specification of procedure rtnl_unlock [2020-10-14 13:52:40,614 INFO L130 BoogieDeclarations]: Found specification of procedure x25_type_trans [2020-10-14 13:52:40,614 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-10-14 13:52:40,614 INFO L130 BoogieDeclarations]: Found specification of procedure x25_asy_esc [2020-10-14 13:52:40,614 INFO L130 BoogieDeclarations]: Found specification of procedure x25_asy_unesc [2020-10-14 13:52:40,614 INFO L130 BoogieDeclarations]: Found specification of procedure x25_asy_setup [2020-10-14 13:52:40,614 INFO L130 BoogieDeclarations]: Found specification of procedure x25_asy_alloc [2020-10-14 13:52:40,614 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-14 13:52:40,614 INFO L130 BoogieDeclarations]: Found specification of procedure x25_asy_free [2020-10-14 13:52:40,615 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy [2020-10-14 13:52:40,615 INFO L130 BoogieDeclarations]: Found specification of procedure x25_asy_change_mtu [2020-10-14 13:52:40,615 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2020-10-14 13:52:40,615 INFO L130 BoogieDeclarations]: Found specification of procedure x25_asy_lock [2020-10-14 13:52:40,615 INFO L130 BoogieDeclarations]: Found specification of procedure x25_asy_unlock [2020-10-14 13:52:40,615 INFO L130 BoogieDeclarations]: Found specification of procedure x25_asy_bump [2020-10-14 13:52:40,615 INFO L130 BoogieDeclarations]: Found specification of procedure x25_asy_encaps [2020-10-14 13:52:40,616 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~int~TO~int [2020-10-14 13:52:40,616 INFO L130 BoogieDeclarations]: Found specification of procedure x25_asy_write_wakeup [2020-10-14 13:52:40,616 INFO L130 BoogieDeclarations]: Found specification of procedure x25_asy_timeout [2020-10-14 13:52:40,616 INFO L130 BoogieDeclarations]: Found specification of procedure x25_asy_xmit [2020-10-14 13:52:40,616 INFO L130 BoogieDeclarations]: Found specification of procedure x25_asy_data_indication [2020-10-14 13:52:40,616 INFO L130 BoogieDeclarations]: Found specification of procedure x25_asy_data_transmit [2020-10-14 13:52:40,616 INFO L130 BoogieDeclarations]: Found specification of procedure x25_asy_connected [2020-10-14 13:52:40,616 INFO L130 BoogieDeclarations]: Found specification of procedure x25_asy_disconnected [2020-10-14 13:52:40,617 INFO L130 BoogieDeclarations]: Found specification of procedure x25_asy_open [2020-10-14 13:52:40,617 INFO L130 BoogieDeclarations]: Found specification of procedure x25_asy_close [2020-10-14 13:52:40,617 INFO L130 BoogieDeclarations]: Found specification of procedure x25_asy_receive_buf [2020-10-14 13:52:40,617 INFO L130 BoogieDeclarations]: Found specification of procedure x25_asy_open_tty [2020-10-14 13:52:40,617 INFO L130 BoogieDeclarations]: Found specification of procedure x25_asy_close_tty [2020-10-14 13:52:40,617 INFO L130 BoogieDeclarations]: Found specification of procedure x25_asy_ioctl [2020-10-14 13:52:40,617 INFO L130 BoogieDeclarations]: Found specification of procedure x25_asy_compat_ioctl [2020-10-14 13:52:40,617 INFO L130 BoogieDeclarations]: Found specification of procedure x25_asy_open_dev [2020-10-14 13:52:40,618 INFO L130 BoogieDeclarations]: Found specification of procedure init_x25_asy [2020-10-14 13:52:40,618 INFO L130 BoogieDeclarations]: Found specification of procedure exit_x25_asy [2020-10-14 13:52:40,618 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_ndo_init_2 [2020-10-14 13:52:40,618 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_ndo_uninit_2 [2020-10-14 13:52:40,618 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize [2020-10-14 13:52:40,618 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2020-10-14 13:52:40,618 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_probe_3 [2020-10-14 13:52:40,618 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-14 13:52:40,619 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_set_init [2020-10-14 13:52:40,619 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_set_add [2020-10-14 13:52:40,619 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_set_remove [2020-10-14 13:52:40,619 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_set_contains [2020-10-14 13:52:40,619 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_set_is_empty [2020-10-14 13:52:40,619 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2020-10-14 13:52:40,619 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_err_ptr [2020-10-14 13:52:40,619 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_ptr_err [2020-10-14 13:52:40,620 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err_or_null [2020-10-14 13:52:40,620 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_netdev_alloc_skb [2020-10-14 13:52:40,620 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_alloc_skb [2020-10-14 13:52:40,620 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_skb_current [2020-10-14 13:52:40,620 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-10-14 13:52:40,620 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-14 13:52:40,620 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-14 13:52:40,620 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2020-10-14 13:52:40,621 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-14 13:52:40,621 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2020-10-14 13:52:40,621 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2020-10-14 13:52:40,621 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2020-10-14 13:52:40,621 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2020-10-14 13:52:41,713 INFO L732 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2020-10-14 13:52:43,447 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-14 13:52:43,448 INFO L295 CfgBuilder]: Removed 4 assume(true) statements. [2020-10-14 13:52:43,458 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 01:52:43 BoogieIcfgContainer [2020-10-14 13:52:43,458 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-14 13:52:43,459 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-14 13:52:43,460 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-14 13:52:43,463 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-14 13:52:43,463 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.10 01:52:37" (1/3) ... [2020-10-14 13:52:43,464 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@703d8444 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 01:52:43, skipping insertion in model container [2020-10-14 13:52:43,464 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 01:52:40" (2/3) ... [2020-10-14 13:52:43,465 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@703d8444 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 01:52:43, skipping insertion in model container [2020-10-14 13:52:43,465 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 01:52:43" (3/3) ... [2020-10-14 13:52:43,466 INFO L109 eAbstractionObserver]: Analyzing ICFG 205_9a_array_safes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--wan--x25_asy.ko-entry_point.cil.out.i [2020-10-14 13:52:43,478 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-14 13:52:43,487 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-14 13:52:43,502 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-14 13:52:43,530 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-10-14 13:52:43,530 INFO L376 AbstractCegarLoop]: Hoare is true [2020-10-14 13:52:43,530 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-14 13:52:43,530 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-14 13:52:43,531 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-14 13:52:43,531 INFO L380 AbstractCegarLoop]: Difference is false [2020-10-14 13:52:43,531 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-14 13:52:43,531 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-14 13:52:43,571 INFO L276 IsEmpty]: Start isEmpty. Operand 1064 states. [2020-10-14 13:52:43,591 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2020-10-14 13:52:43,591 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 13:52:43,593 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 13:52:43,593 INFO L427 AbstractCegarLoop]: === Iteration 1 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 13:52:43,599 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 13:52:43,600 INFO L82 PathProgramCache]: Analyzing trace with hash -1283343217, now seen corresponding path program 1 times [2020-10-14 13:52:43,609 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 13:52:43,610 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2015149120] [2020-10-14 13:52:43,610 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 13:52:44,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 13:52:44,307 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 13:52:44,557 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 13:52:46,267 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 13:52:49,156 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 13:52:49,156 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 107 [2020-10-14 13:52:49,157 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-14 13:52:49,157 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5045 [2020-10-14 13:52:49,160 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 13:52:49,160 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 13:52:49,161 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 13:52:49,161 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 63 [2020-10-14 13:52:49,162 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-14 13:52:49,162 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-10-14 13:52:49,789 WARN L193 SmtUtils]: Spent 461.00 ms on a formula simplification that was a NOOP. DAG size: 253 [2020-10-14 13:52:49,793 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 13:52:49,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 13:52:49,823 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 13:52:49,878 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 13:52:49,879 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 13:52:49,879 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 13:52:49,881 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 63 [2020-10-14 13:52:49,881 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 13:52:49,881 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 13:52:49,882 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 13:52:49,882 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 13:52:49,882 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 13:52:49,882 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 13:52:49,981 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 13:52:49,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 13:52:49,992 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 13:52:49,999 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 13:52:50,000 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 13:52:50,000 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 13:52:50,000 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-14 13:52:50,001 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 13:52:50,001 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 13:52:50,002 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 13:52:50,004 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 13:52:50,005 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 13:52:50,005 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-10-14 13:52:50,018 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-14 13:52:50,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 13:52:50,029 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 13:52:50,035 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 13:52:50,036 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 13:52:50,036 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 13:52:50,036 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-14 13:52:50,037 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 13:52:50,037 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 13:52:50,038 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 13:52:50,038 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 13:52:50,038 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 13:52:50,039 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 13:52:50,051 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-14 13:52:50,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 13:52:50,062 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 13:52:50,067 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 13:52:50,067 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 13:52:50,067 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 13:52:50,068 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-14 13:52:50,068 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 13:52:50,068 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 13:52:50,068 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 13:52:50,068 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 13:52:50,069 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 13:52:50,069 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 13:52:50,078 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2020-10-14 13:52:50,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 13:52:50,089 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 13:52:50,096 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 13:52:50,097 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 13:52:50,097 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 13:52:50,098 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-14 13:52:50,098 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 13:52:50,099 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 13:52:50,099 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 13:52:50,099 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 13:52:50,100 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 13:52:50,100 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-14 13:52:50,113 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2020-10-14 13:52:50,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 13:52:50,126 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 13:52:50,133 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 13:52:50,133 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 13:52:50,134 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 13:52:50,134 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-14 13:52:50,135 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 13:52:50,135 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 13:52:50,136 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 13:52:50,136 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 13:52:50,136 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 13:52:50,137 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-14 13:52:50,165 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2020-10-14 13:52:50,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 13:52:50,175 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 13:52:50,183 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 13:52:50,184 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-14 13:52:50,184 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 13:52:50,184 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-14 13:52:50,185 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 13:52:50,185 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 13:52:50,186 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 13:52:50,186 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 13:52:50,186 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 13:52:50,187 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 13:52:50,195 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 13:52:50,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 13:52:50,202 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 13:52:50,206 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 13:52:50,207 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 13:52:50,207 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 13:52:50,207 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-14 13:52:50,208 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 13:52:50,208 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 13:52:50,208 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 13:52:50,209 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 13:52:50,209 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 13:52:50,209 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 13:52:50,235 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2020-10-14 13:52:50,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 13:52:50,250 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 13:52:50,270 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 13:52:50,271 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-10-14 13:52:50,271 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 13:52:50,271 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 28 [2020-10-14 13:52:50,271 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 13:52:50,271 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 13:52:50,272 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 13:52:50,272 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 19 [2020-10-14 13:52:50,272 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 13:52:50,272 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 13:52:50,296 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-14 13:52:50,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 13:52:50,304 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 13:52:50,320 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 13:52:50,321 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 13:52:50,321 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 13:52:50,321 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-10-14 13:52:50,321 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 13:52:50,322 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 13:52:50,322 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 13:52:50,322 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 13:52:50,322 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 13:52:50,322 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 13:52:50,329 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 13:52:50,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 13:52:50,338 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 13:52:50,345 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 13:52:50,346 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 13:52:50,346 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 13:52:50,346 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-14 13:52:50,346 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 13:52:50,346 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 13:52:50,347 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 13:52:50,347 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 13:52:50,347 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 13:52:50,347 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 13:52:50,357 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2020-10-14 13:52:50,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 13:52:50,366 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 13:52:50,370 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 13:52:50,370 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 13:52:50,370 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 13:52:50,371 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-14 13:52:50,371 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 13:52:50,372 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 13:52:50,372 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 13:52:50,372 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 13:52:50,373 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 13:52:50,373 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 13:52:50,427 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2020-10-14 13:52:50,429 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2015149120] [2020-10-14 13:52:50,431 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 13:52:50,431 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-10-14 13:52:50,432 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1914213632] [2020-10-14 13:52:50,438 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-14 13:52:50,438 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 13:52:50,453 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-14 13:52:50,454 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2020-10-14 13:52:50,456 INFO L87 Difference]: Start difference. First operand 1064 states. Second operand 8 states. [2020-10-14 13:52:50,905 WARN L193 SmtUtils]: Spent 411.00 ms on a formula simplification that was a NOOP. DAG size: 256 [2020-10-14 13:52:51,747 WARN L193 SmtUtils]: Spent 539.00 ms on a formula simplification that was a NOOP. DAG size: 258 [2020-10-14 13:52:52,228 WARN L193 SmtUtils]: Spent 382.00 ms on a formula simplification that was a NOOP. DAG size: 255 [2020-10-14 13:53:13,352 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 13:53:13,353 INFO L93 Difference]: Finished difference Result 4400 states and 6689 transitions. [2020-10-14 13:53:13,359 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2020-10-14 13:53:13,361 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 75 [2020-10-14 13:53:13,362 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 13:53:13,440 INFO L225 Difference]: With dead ends: 4400 [2020-10-14 13:53:13,441 INFO L226 Difference]: Without dead ends: 3330 [2020-10-14 13:53:13,454 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 107 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=156, Invalid=350, Unknown=0, NotChecked=0, Total=506 [2020-10-14 13:53:13,482 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3330 states. [2020-10-14 13:53:14,020 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3330 to 1916. [2020-10-14 13:53:14,021 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1916 states. [2020-10-14 13:53:14,035 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1916 states to 1916 states and 2468 transitions. [2020-10-14 13:53:14,039 INFO L78 Accepts]: Start accepts. Automaton has 1916 states and 2468 transitions. Word has length 75 [2020-10-14 13:53:14,041 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 13:53:14,041 INFO L479 AbstractCegarLoop]: Abstraction has 1916 states and 2468 transitions. [2020-10-14 13:53:14,041 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-14 13:53:14,042 INFO L276 IsEmpty]: Start isEmpty. Operand 1916 states and 2468 transitions. [2020-10-14 13:53:14,056 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2020-10-14 13:53:14,056 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 13:53:14,057 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 13:53:14,058 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-14 13:53:14,058 INFO L427 AbstractCegarLoop]: === Iteration 2 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 13:53:14,058 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 13:53:14,058 INFO L82 PathProgramCache]: Analyzing trace with hash 1555306418, now seen corresponding path program 1 times [2020-10-14 13:53:14,059 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 13:53:14,059 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1659917858] [2020-10-14 13:53:14,059 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 13:53:14,144 ERROR L271 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-10-14 13:53:14,145 WARN L168 FreeRefinementEngine]: Strategy FIXED_PREFERENCES was unsuccessful and could not determine trace feasibility [2020-10-14 13:53:14,145 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-10-14 13:53:14,150 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-14 13:53:14,195 WARN L231 ceAbstractionStarter]: Unable to decide correctness. Please check the following counterexample manually. [2020-10-14 13:53:14,195 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.10 01:53:14 BoogieIcfgContainer [2020-10-14 13:53:14,196 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-14 13:53:14,199 INFO L168 Benchmark]: Toolchain (without parser) took 36770.20 ms. Allocated memory was 146.8 MB in the beginning and 724.0 MB in the end (delta: 577.2 MB). Free memory was 93.7 MB in the beginning and 507.8 MB in the end (delta: -414.1 MB). Peak memory consumption was 163.1 MB. Max. memory is 7.1 GB. [2020-10-14 13:53:14,200 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 146.8 MB. Free memory was 121.3 MB in the beginning and 120.9 MB in the end (delta: 420.0 kB). Peak memory consumption was 420.0 kB. Max. memory is 7.1 GB. [2020-10-14 13:53:14,202 INFO L168 Benchmark]: CACSL2BoogieTranslator took 2794.27 ms. Allocated memory was 146.8 MB in the beginning and 248.5 MB in the end (delta: 101.7 MB). Free memory was 93.2 MB in the beginning and 187.3 MB in the end (delta: -94.0 MB). Peak memory consumption was 117.0 MB. Max. memory is 7.1 GB. [2020-10-14 13:53:14,208 INFO L168 Benchmark]: Boogie Preprocessor took 272.42 ms. Allocated memory is still 248.5 MB. Free memory was 187.3 MB in the beginning and 172.3 MB in the end (delta: 15.0 MB). Peak memory consumption was 15.0 MB. Max. memory is 7.1 GB. [2020-10-14 13:53:14,209 INFO L168 Benchmark]: RCFGBuilder took 2962.49 ms. Allocated memory was 248.5 MB in the beginning and 316.7 MB in the end (delta: 68.2 MB). Free memory was 172.3 MB in the beginning and 145.5 MB in the end (delta: 26.8 MB). Peak memory consumption was 104.8 MB. Max. memory is 7.1 GB. [2020-10-14 13:53:14,210 INFO L168 Benchmark]: TraceAbstraction took 30736.35 ms. Allocated memory was 316.7 MB in the beginning and 724.0 MB in the end (delta: 407.4 MB). Free memory was 145.5 MB in the beginning and 507.8 MB in the end (delta: -362.3 MB). Peak memory consumption was 45.1 MB. Max. memory is 7.1 GB. [2020-10-14 13:53:14,222 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 146.8 MB. Free memory was 121.3 MB in the beginning and 120.9 MB in the end (delta: 420.0 kB). Peak memory consumption was 420.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 2794.27 ms. Allocated memory was 146.8 MB in the beginning and 248.5 MB in the end (delta: 101.7 MB). Free memory was 93.2 MB in the beginning and 187.3 MB in the end (delta: -94.0 MB). Peak memory consumption was 117.0 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 272.42 ms. Allocated memory is still 248.5 MB. Free memory was 187.3 MB in the beginning and 172.3 MB in the end (delta: 15.0 MB). Peak memory consumption was 15.0 MB. Max. memory is 7.1 GB. * RCFGBuilder took 2962.49 ms. Allocated memory was 248.5 MB in the beginning and 316.7 MB in the end (delta: 68.2 MB). Free memory was 172.3 MB in the beginning and 145.5 MB in the end (delta: 26.8 MB). Peak memory consumption was 104.8 MB. Max. memory is 7.1 GB. * TraceAbstraction took 30736.35 ms. Allocated memory was 316.7 MB in the beginning and 724.0 MB in the end (delta: 407.4 MB). Free memory was 145.5 MB in the beginning and 507.8 MB in the end (delta: -362.3 MB). Peak memory consumption was 45.1 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 5473]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: unable to decide satisfiability of path constraint, overapproximation of bitwiseOr at line 5353. Possible FailurePath: [L5496] int ldv_state_variable_3 ; [L5497] struct tty_struct *x25_ldisc_group1 ; [L5498] int LDV_IN_INTERRUPT = 1; [L5499] int ldv_state_variable_2 ; [L5500] int ref_cnt ; [L5501] struct net_device *x25_asy_netdev_ops_group1 ; [L5502] struct sk_buff *x25_asy_callbacks_group0 ; [L5503] int ldv_state_variable_1 ; [L5504] struct net_device *x25_asy_callbacks_group1 ; [L5505] int ldv_state_variable_0 ; [L5663] static struct net_device **x25_asy_devs ; [L5664] static int x25_asy_maxdev = 256; [L6130-L6131] static struct lapb_register_struct const x25_asy_callbacks = {& x25_asy_connected, & x25_asy_connected, & x25_asy_disconnected, & x25_asy_disconnected, & x25_asy_data_indication, & x25_asy_data_transmit}; [L6480-L6484] static struct net_device_ops const x25_asy_netdev_ops = {0, 0, & x25_asy_open_dev, & x25_asy_close, & x25_asy_xmit, 0, 0, 0, 0, 0, 0, 0, & x25_asy_change_mtu, 0, & x25_asy_timeout, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0}; [L6509-L6512] static struct tty_ldisc_ops x25_ldisc = {21507, (char *)"X.25", 0, 0, & x25_asy_open_tty, & x25_asy_close_tty, 0, 0, 0, 0, & x25_asy_ioctl, & x25_asy_compat_ioctl, 0, 0, 0, & x25_asy_receive_buf, & x25_asy_write_wakeup, 0, 0, 0, & __this_module, 0}; [L6569] int ldv_retval_2 ; [L6570] int ldv_retval_0 ; [L6574] int ldv_retval_1 ; [L6577] int ldv_retval_3 ; [L7126] Element set_impl[15] ; [L7127] int last_index = 0; [L7261] Set LDV_SKBS ; [L6610] char *ldvarg7 ; [L6611] void *tmp ; [L6612] unsigned long ldvarg3 ; [L6613] unsigned long tmp___0 ; [L6614] unsigned long ldvarg0 ; [L6615] unsigned long tmp___1 ; [L6616] struct file *ldvarg5 ; [L6617] void *tmp___2 ; [L6618] int ldvarg6 ; [L6619] int tmp___3 ; [L6620] unsigned char *ldvarg8 ; [L6621] void *tmp___4 ; [L6622] unsigned int ldvarg1 ; [L6623] unsigned int tmp___5 ; [L6624] unsigned int ldvarg4 ; [L6625] unsigned int tmp___6 ; [L6626] struct file *ldvarg2 ; [L6627] void *tmp___7 ; [L6628] int ldvarg11 ; [L6629] int tmp___8 ; [L6630] int ldvarg10 ; [L6631] int tmp___9 ; [L6632] int ldvarg12 ; [L6633] int tmp___10 ; [L6634] int ldvarg9 ; [L6635] int tmp___11 ; [L6636] int ldvarg14 ; [L6637] int tmp___12 ; [L6638] struct sk_buff *ldvarg13 ; [L6639] void *tmp___13 ; [L6640] int tmp___14 ; [L6641] int tmp___15 ; [L6642] int tmp___16 ; [L6643] int tmp___17 ; [L6644] int tmp___18 ; [L6646] CALL, EXPR ldv_zalloc(1UL) [L5438] void *p ; [L5439] void *tmp ; [L5440] int tmp___0 ; [L5442] tmp___0 = __VERIFIER_nondet_int() [L5443] COND TRUE tmp___0 != 0 [L5444] return ((void *)0); [L6646] RET, EXPR ldv_zalloc(1UL) [L6646] tmp = ldv_zalloc(1UL) [L6647] ldvarg7 = (char *)tmp [L6648] tmp___0 = __VERIFIER_nondet_ulong() [L6649] ldvarg3 = tmp___0 [L6650] tmp___1 = __VERIFIER_nondet_ulong() [L6651] ldvarg0 = tmp___1 [L6652] CALL, EXPR ldv_zalloc(512UL) [L5438] void *p ; [L5439] void *tmp ; [L5440] int tmp___0 ; [L5442] tmp___0 = __VERIFIER_nondet_int() [L5443] COND TRUE tmp___0 != 0 [L5444] return ((void *)0); [L6652] RET, EXPR ldv_zalloc(512UL) [L6652] tmp___2 = ldv_zalloc(512UL) [L6653] ldvarg5 = (struct file *)tmp___2 [L6654] tmp___3 = __VERIFIER_nondet_int() [L6655] ldvarg6 = tmp___3 [L6656] CALL, EXPR ldv_zalloc(1UL) [L5438] void *p ; [L5439] void *tmp ; [L5440] int tmp___0 ; [L5442] tmp___0 = __VERIFIER_nondet_int() [L5443] COND TRUE tmp___0 != 0 [L5444] return ((void *)0); [L6656] RET, EXPR ldv_zalloc(1UL) [L6656] tmp___4 = ldv_zalloc(1UL) [L6657] ldvarg8 = (unsigned char *)tmp___4 [L6658] tmp___5 = __VERIFIER_nondet_uint() [L6659] ldvarg1 = tmp___5 [L6660] tmp___6 = __VERIFIER_nondet_uint() [L6661] ldvarg4 = tmp___6 [L6662] CALL, EXPR ldv_zalloc(512UL) [L5438] void *p ; [L5439] void *tmp ; [L5440] int tmp___0 ; [L5442] tmp___0 = __VERIFIER_nondet_int() [L5443] COND TRUE tmp___0 != 0 [L5444] return ((void *)0); [L6662] RET, EXPR ldv_zalloc(512UL) [L6662] tmp___7 = ldv_zalloc(512UL) [L6663] ldvarg2 = (struct file *)tmp___7 [L6664] tmp___8 = __VERIFIER_nondet_int() [L6665] ldvarg11 = tmp___8 [L6666] tmp___9 = __VERIFIER_nondet_int() [L6667] ldvarg10 = tmp___9 [L6668] tmp___10 = __VERIFIER_nondet_int() [L6669] ldvarg12 = tmp___10 [L6670] tmp___11 = __VERIFIER_nondet_int() [L6671] ldvarg9 = tmp___11 [L6672] tmp___12 = __VERIFIER_nondet_int() [L6673] ldvarg14 = tmp___12 [L6674] CALL, EXPR ldv_zalloc(232UL) [L5438] void *p ; [L5439] void *tmp ; [L5440] int tmp___0 ; [L5442] tmp___0 = __VERIFIER_nondet_int() [L5443] COND TRUE tmp___0 != 0 [L5444] return ((void *)0); [L6674] RET, EXPR ldv_zalloc(232UL) [L6674] tmp___13 = ldv_zalloc(232UL) [L6675] ldvarg13 = (struct sk_buff *)tmp___13 [L6676] CALL ldv_initialize() [L7280] CALL ldv_set_init(LDV_SKBS) [L7132] set = set_impl [L7133] last_index = 0 [L7280] RET ldv_set_init(LDV_SKBS) [L6676] RET ldv_initialize() [L6677] ldv_state_variable_1 = 0 [L6678] ref_cnt = 0 [L6679] ldv_state_variable_0 = 1 [L6680] ldv_state_variable_3 = 0 [L6681] ldv_state_variable_2 = 0 [L6683] tmp___14 = __VERIFIER_nondet_int() [L6685] case 0: [L6754] case 1: [L6755] COND TRUE ldv_state_variable_0 != 0 [L6756] tmp___16 = __VERIFIER_nondet_int() [L6758] case 0: [L6766] case 1: [L6767] COND TRUE ldv_state_variable_0 == 1 [L6768] CALL, EXPR init_x25_asy() [L6515] void *tmp ; [L6516] int tmp___0 ; [L6518] COND TRUE x25_asy_maxdev <= 3 [L6519] x25_asy_maxdev = 4 [L6524] CALL, EXPR kcalloc((size_t )x25_asy_maxdev, 8UL, 208U) [L5351] void *tmp ; [L5353] CALL, EXPR kmalloc_array(n, size, flags | 32768U) [L5338] void *tmp ; [L5340] COND FALSE !(size != 0UL && 0xffffffffffffffffUL / size < n) [L5344] CALL, EXPR __kmalloc(n * size, flags) [L5325] CALL, EXPR ldv_malloc(size) [L5421] void *p ; [L5422] void *tmp ; [L5423] int tmp___0 ; [L5425] tmp___0 = __VERIFIER_nondet_int() [L5426] COND TRUE tmp___0 != 0 [L5427] return ((void *)0); [L5325] RET, EXPR ldv_malloc(size) [L5325] return ldv_malloc(size); [L5344] RET, EXPR __kmalloc(n * size, flags) [L5344] tmp = __kmalloc(n * size, flags) [L5345] return (tmp); [L5353] RET, EXPR kmalloc_array(n, size, flags | 32768U) [L5353] tmp = kmalloc_array(n, size, flags | 32768U) [L5354] return (tmp); [L6524] RET, EXPR kcalloc((size_t )x25_asy_maxdev, 8UL, 208U) [L6524] tmp = kcalloc((size_t )x25_asy_maxdev, 8UL, 208U) [L6525] x25_asy_devs = (struct net_device **)tmp [L6526] COND TRUE (unsigned long )x25_asy_devs == (unsigned long )((struct net_device **)0) [L6527] return (-12); [L6768] RET, EXPR init_x25_asy() [L6768] ldv_retval_1 = init_x25_asy() [L6769] COND FALSE !(ldv_retval_1 == 0) [L6777] COND TRUE ldv_retval_1 != 0 [L6778] ldv_state_variable_0 = 2 [L6968] CALL ldv_check_final_state() [L7331] int tmp___7 ; [L7333] CALL, EXPR ldv_set_is_empty(LDV_SKBS) [L7222] return (last_index == 0); [L7333] RET, EXPR ldv_set_is_empty(LDV_SKBS) [L7333] tmp___7 = ldv_set_is_empty(LDV_SKBS) [L7334] COND FALSE !(\read(tmp___7)) [L7336] CALL ldv_error() [L5473] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 151 procedures, 1128 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNKNOWN, OverallTime: 30.6s, OverallIterations: 2, TraceHistogramMax: 5, AutomataDifference: 23.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 1214 SDtfs, 6139 SDslu, 1187 SDs, 0 SdLazy, 4551 SolverSat, 4193 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 17.9s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 47 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 107 ImplicationChecksByTransitivity, 2.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1916occurred in iteration=1, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.5s AutomataMinimizationTime, 1 MinimizatonAttempts, 1414 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 6.2s InterpolantComputationTime, 75 NumberOfCodeBlocks, 75 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 74 ConstructedInterpolants, 0 QuantifiedInterpolants, 29230 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 40/40 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request...