/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SequenceOfStatements --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=DEEPEST --traceabstraction.additional.smt.options log-additional-information=true --traceabstraction.additional.smt.options unknown-allowed=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-64bit-Automizer_Default.epf language data_model -i ../../../trunk/examples/svcomp/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--isdn--mISDN--l1oip.ko-main.cil.out.i -------------------------------------------------------------------------------- This is Ultimate 0.2.0-0f64333 [2020-10-28 02:46:16,024 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-28 02:46:16,026 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-28 02:46:16,065 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-28 02:46:16,066 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-28 02:46:16,067 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-28 02:46:16,069 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-28 02:46:16,071 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-28 02:46:16,073 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-28 02:46:16,075 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-28 02:46:16,076 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-28 02:46:16,077 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-28 02:46:16,078 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-28 02:46:16,079 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-28 02:46:16,080 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-28 02:46:16,082 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-28 02:46:16,083 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-28 02:46:16,084 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-28 02:46:16,086 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-28 02:46:16,088 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-28 02:46:16,090 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-28 02:46:16,092 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-28 02:46:16,093 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-28 02:46:16,094 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-28 02:46:16,100 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-28 02:46:16,100 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-28 02:46:16,100 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-28 02:46:16,102 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-28 02:46:16,102 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-28 02:46:16,106 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-28 02:46:16,107 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-28 02:46:16,108 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-28 02:46:16,109 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-28 02:46:16,110 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-28 02:46:16,113 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-28 02:46:16,113 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-28 02:46:16,114 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-28 02:46:16,115 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-28 02:46:16,116 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-28 02:46:16,117 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-28 02:46:16,119 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-28 02:46:16,120 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-64bit-Automizer_Default.epf [2020-10-28 02:46:16,180 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-28 02:46:16,180 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-28 02:46:16,182 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-28 02:46:16,182 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-28 02:46:16,182 INFO L138 SettingsManager]: * Use SBE=true [2020-10-28 02:46:16,183 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-28 02:46:16,183 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-28 02:46:16,183 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-28 02:46:16,183 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-28 02:46:16,183 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-28 02:46:16,184 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-28 02:46:16,184 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-28 02:46:16,186 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-28 02:46:16,186 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-28 02:46:16,186 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-28 02:46:16,186 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-28 02:46:16,187 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-28 02:46:16,187 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-28 02:46:16,187 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-28 02:46:16,187 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-28 02:46:16,188 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-28 02:46:16,188 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-28 02:46:16,188 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-28 02:46:16,188 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-28 02:46:16,188 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-28 02:46:16,189 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-28 02:46:16,189 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-10-28 02:46:16,189 INFO L138 SettingsManager]: * To the following directory=dump/ WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=DEEPEST;log-additional-information=true;unknown-allowed=true; [2020-10-28 02:46:16,621 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-28 02:46:16,651 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-28 02:46:16,654 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-28 02:46:16,655 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-28 02:46:16,656 INFO L275 PluginConnector]: CDTParser initialized [2020-10-28 02:46:16,657 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--isdn--mISDN--l1oip.ko-main.cil.out.i [2020-10-28 02:46:16,726 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/9449e430e/80a3f9f007bf46bfb6ce54777d947722/FLAG79dc081c2 [2020-10-28 02:46:17,776 INFO L306 CDTParser]: Found 1 translation units. [2020-10-28 02:46:17,778 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--isdn--mISDN--l1oip.ko-main.cil.out.i [2020-10-28 02:46:17,831 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/9449e430e/80a3f9f007bf46bfb6ce54777d947722/FLAG79dc081c2 [2020-10-28 02:46:18,241 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/9449e430e/80a3f9f007bf46bfb6ce54777d947722 [2020-10-28 02:46:18,244 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-28 02:46:18,251 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-28 02:46:18,253 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-28 02:46:18,253 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-28 02:46:18,258 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-28 02:46:18,259 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 02:46:18" (1/1) ... [2020-10-28 02:46:18,262 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@57d2e2e9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 02:46:18, skipping insertion in model container [2020-10-28 02:46:18,262 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 02:46:18" (1/1) ... [2020-10-28 02:46:18,273 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-28 02:46:18,431 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-28 02:46:19,998 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-28 02:46:20,107 INFO L203 MainTranslator]: Completed pre-run [2020-10-28 02:46:20,618 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-28 02:46:20,871 INFO L208 MainTranslator]: Completed translation [2020-10-28 02:46:20,871 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 02:46:20 WrapperNode [2020-10-28 02:46:20,872 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-28 02:46:20,873 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-28 02:46:20,873 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-28 02:46:20,873 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-28 02:46:20,888 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 02:46:20" (1/1) ... [2020-10-28 02:46:20,888 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 02:46:20" (1/1) ... [2020-10-28 02:46:21,012 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 02:46:20" (1/1) ... [2020-10-28 02:46:21,013 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 02:46:20" (1/1) ... [2020-10-28 02:46:21,135 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 02:46:20" (1/1) ... [2020-10-28 02:46:21,155 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 02:46:20" (1/1) ... [2020-10-28 02:46:21,199 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 02:46:20" (1/1) ... [2020-10-28 02:46:21,222 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-28 02:46:21,223 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-28 02:46:21,223 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-28 02:46:21,223 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-28 02:46:21,224 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 02:46:20" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-28 02:46:21,301 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-28 02:46:21,302 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-28 02:46:21,302 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2020-10-28 02:46:21,302 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~int~TO~int [2020-10-28 02:46:21,302 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-28 02:46:21,302 INFO L138 BoogieDeclarations]: Found implementation of procedure test_and_set_bit [2020-10-28 02:46:21,303 INFO L138 BoogieDeclarations]: Found implementation of procedure test_and_clear_bit [2020-10-28 02:46:21,303 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2020-10-28 02:46:21,303 INFO L138 BoogieDeclarations]: Found implementation of procedure variable_test_bit [2020-10-28 02:46:21,303 INFO L138 BoogieDeclarations]: Found implementation of procedure __arch_swab32 [2020-10-28 02:46:21,303 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab16 [2020-10-28 02:46:21,303 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab32 [2020-10-28 02:46:21,304 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2020-10-28 02:46:21,304 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add [2020-10-28 02:46:21,304 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add_tail [2020-10-28 02:46:21,304 INFO L138 BoogieDeclarations]: Found implementation of procedure get_current [2020-10-28 02:46:21,304 INFO L138 BoogieDeclarations]: Found implementation of procedure PTR_ERR [2020-10-28 02:46:21,305 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2020-10-28 02:46:21,305 INFO L138 BoogieDeclarations]: Found implementation of procedure test_ti_thread_flag [2020-10-28 02:46:21,305 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2020-10-28 02:46:21,305 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2020-10-28 02:46:21,305 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2020-10-28 02:46:21,306 INFO L138 BoogieDeclarations]: Found implementation of procedure init_completion [2020-10-28 02:46:21,306 INFO L138 BoogieDeclarations]: Found implementation of procedure timer_pending [2020-10-28 02:46:21,306 INFO L138 BoogieDeclarations]: Found implementation of procedure test_channelmap [2020-10-28 02:46:21,306 INFO L138 BoogieDeclarations]: Found implementation of procedure set_channelmap [2020-10-28 02:46:21,306 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-10-28 02:46:21,306 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2020-10-28 02:46:21,307 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2020-10-28 02:46:21,307 INFO L138 BoogieDeclarations]: Found implementation of procedure __kmalloc [2020-10-28 02:46:21,307 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2020-10-28 02:46:21,307 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2020-10-28 02:46:21,307 INFO L138 BoogieDeclarations]: Found implementation of procedure alloc_skb [2020-10-28 02:46:21,307 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_reserve [2020-10-28 02:46:21,308 INFO L138 BoogieDeclarations]: Found implementation of procedure test_tsk_thread_flag [2020-10-28 02:46:21,308 INFO L138 BoogieDeclarations]: Found implementation of procedure signal_pending [2020-10-28 02:46:21,308 INFO L138 BoogieDeclarations]: Found implementation of procedure mI_alloc_skb [2020-10-28 02:46:21,308 INFO L138 BoogieDeclarations]: Found implementation of procedure _alloc_mISDN_skb [2020-10-28 02:46:21,308 INFO L138 BoogieDeclarations]: Found implementation of procedure _queue_data [2020-10-28 02:46:21,308 INFO L138 BoogieDeclarations]: Found implementation of procedure l1oip_socket_send [2020-10-28 02:46:21,308 INFO L138 BoogieDeclarations]: Found implementation of procedure l1oip_socket_recv [2020-10-28 02:46:21,309 INFO L138 BoogieDeclarations]: Found implementation of procedure l1oip_socket_parse [2020-10-28 02:46:21,309 INFO L138 BoogieDeclarations]: Found implementation of procedure l1oip_socket_thread [2020-10-28 02:46:21,309 INFO L138 BoogieDeclarations]: Found implementation of procedure l1oip_socket_close [2020-10-28 02:46:21,309 INFO L138 BoogieDeclarations]: Found implementation of procedure l1oip_socket_open [2020-10-28 02:46:21,309 INFO L138 BoogieDeclarations]: Found implementation of procedure l1oip_send_bh [2020-10-28 02:46:21,309 INFO L138 BoogieDeclarations]: Found implementation of procedure l1oip_keepalive [2020-10-28 02:46:21,310 INFO L138 BoogieDeclarations]: Found implementation of procedure l1oip_timeout [2020-10-28 02:46:21,310 INFO L138 BoogieDeclarations]: Found implementation of procedure handle_dmsg [2020-10-28 02:46:21,310 INFO L138 BoogieDeclarations]: Found implementation of procedure channel_dctrl [2020-10-28 02:46:21,310 INFO L138 BoogieDeclarations]: Found implementation of procedure open_dchannel [2020-10-28 02:46:21,310 INFO L138 BoogieDeclarations]: Found implementation of procedure open_bchannel [2020-10-28 02:46:21,310 INFO L138 BoogieDeclarations]: Found implementation of procedure l1oip_dctrl [2020-10-28 02:46:21,311 INFO L138 BoogieDeclarations]: Found implementation of procedure handle_bmsg [2020-10-28 02:46:21,311 INFO L138 BoogieDeclarations]: Found implementation of procedure channel_bctrl [2020-10-28 02:46:21,311 INFO L138 BoogieDeclarations]: Found implementation of procedure l1oip_bctrl [2020-10-28 02:46:21,311 INFO L138 BoogieDeclarations]: Found implementation of procedure release_card [2020-10-28 02:46:21,311 INFO L138 BoogieDeclarations]: Found implementation of procedure l1oip_cleanup [2020-10-28 02:46:21,311 INFO L138 BoogieDeclarations]: Found implementation of procedure init_card [2020-10-28 02:46:21,312 INFO L138 BoogieDeclarations]: Found implementation of procedure l1oip_init [2020-10-28 02:46:21,312 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-28 02:46:21,312 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_1 [2020-10-28 02:46:21,312 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_2 [2020-10-28 02:46:21,312 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_3 [2020-10-28 02:46:21,312 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_trylock_4 [2020-10-28 02:46:21,313 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_5 [2020-10-28 02:46:21,313 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_6 [2020-10-28 02:46:21,313 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_7 [2020-10-28 02:46:21,313 INFO L138 BoogieDeclarations]: Found implementation of procedure l1oip_law_to_4bit [2020-10-28 02:46:21,313 INFO L138 BoogieDeclarations]: Found implementation of procedure l1oip_4bit_to_law [2020-10-28 02:46:21,314 INFO L138 BoogieDeclarations]: Found implementation of procedure l1oip_alaw_to_ulaw [2020-10-28 02:46:21,314 INFO L138 BoogieDeclarations]: Found implementation of procedure l1oip_ulaw_to_alaw [2020-10-28 02:46:21,314 INFO L138 BoogieDeclarations]: Found implementation of procedure l1oip_4bit_free [2020-10-28 02:46:21,314 INFO L138 BoogieDeclarations]: Found implementation of procedure l1oip_4bit_alloc [2020-10-28 02:46:21,314 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_15 [2020-10-28 02:46:21,314 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_16 [2020-10-28 02:46:21,315 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_17 [2020-10-28 02:46:21,315 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_trylock_18 [2020-10-28 02:46:21,315 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_19 [2020-10-28 02:46:21,315 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_20 [2020-10-28 02:46:21,315 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_21 [2020-10-28 02:46:21,315 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2020-10-28 02:46:21,316 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2020-10-28 02:46:21,316 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_trap [2020-10-28 02:46:21,316 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_interruptible_cred_guard_mutex_of_signal_struct [2020-10-28 02:46:21,316 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_killable_cred_guard_mutex_of_signal_struct [2020-10-28 02:46:21,316 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_cred_guard_mutex_of_signal_struct [2020-10-28 02:46:21,317 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_trylock_cred_guard_mutex_of_signal_struct [2020-10-28 02:46:21,317 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_dec_and_mutex_lock_cred_guard_mutex_of_signal_struct [2020-10-28 02:46:21,317 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_is_locked_cred_guard_mutex_of_signal_struct [2020-10-28 02:46:21,317 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_cred_guard_mutex_of_signal_struct [2020-10-28 02:46:21,317 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_interruptible_lock [2020-10-28 02:46:21,317 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_killable_lock [2020-10-28 02:46:21,318 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_lock [2020-10-28 02:46:21,318 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_trylock_lock [2020-10-28 02:46:21,318 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_dec_and_mutex_lock_lock [2020-10-28 02:46:21,318 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_is_locked_lock [2020-10-28 02:46:21,318 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_lock [2020-10-28 02:46:21,318 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_interruptible_mutex_of_device [2020-10-28 02:46:21,319 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_killable_mutex_of_device [2020-10-28 02:46:21,319 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_mutex_of_device [2020-10-28 02:46:21,319 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_trylock_mutex_of_device [2020-10-28 02:46:21,319 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_dec_and_mutex_lock_mutex_of_device [2020-10-28 02:46:21,319 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_is_locked_mutex_of_device [2020-10-28 02:46:21,319 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_mutex_of_device [2020-10-28 02:46:21,319 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize [2020-10-28 02:46:21,320 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2020-10-28 02:46:21,320 INFO L138 BoogieDeclarations]: Found implementation of procedure __alloc_skb [2020-10-28 02:46:21,320 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_waitqueue_head [2020-10-28 02:46:21,320 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_work [2020-10-28 02:46:21,320 INFO L138 BoogieDeclarations]: Found implementation of procedure __list_add [2020-10-28 02:46:21,321 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2020-10-28 02:46:21,321 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock [2020-10-28 02:46:21,321 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_unlock [2020-10-28 02:46:21,321 INFO L138 BoogieDeclarations]: Found implementation of procedure add_timer [2020-10-28 02:46:21,321 INFO L138 BoogieDeclarations]: Found implementation of procedure allow_signal [2020-10-28 02:46:21,321 INFO L138 BoogieDeclarations]: Found implementation of procedure cancel_work_sync [2020-10-28 02:46:21,322 INFO L138 BoogieDeclarations]: Found implementation of procedure complete [2020-10-28 02:46:21,322 INFO L138 BoogieDeclarations]: Found implementation of procedure consume_skb [2020-10-28 02:46:21,322 INFO L138 BoogieDeclarations]: Found implementation of procedure del_timer [2020-10-28 02:46:21,322 INFO L138 BoogieDeclarations]: Found implementation of procedure init_timer_key [2020-10-28 02:46:21,322 INFO L138 BoogieDeclarations]: Found implementation of procedure kernel_recvmsg [2020-10-28 02:46:21,322 INFO L138 BoogieDeclarations]: Found implementation of procedure kernel_sendmsg [2020-10-28 02:46:21,323 INFO L138 BoogieDeclarations]: Found implementation of procedure kthread_create_on_node [2020-10-28 02:46:21,323 INFO L138 BoogieDeclarations]: Found implementation of procedure list_del [2020-10-28 02:46:21,323 INFO L138 BoogieDeclarations]: Found implementation of procedure lockdep_init_map [2020-10-28 02:46:21,323 INFO L138 BoogieDeclarations]: Found implementation of procedure mISDN_freebchannel [2020-10-28 02:46:21,323 INFO L138 BoogieDeclarations]: Found implementation of procedure mISDN_freedchannel [2020-10-28 02:46:21,323 INFO L138 BoogieDeclarations]: Found implementation of procedure mISDN_initbchannel [2020-10-28 02:46:21,323 INFO L138 BoogieDeclarations]: Found implementation of procedure mISDN_initdchannel [2020-10-28 02:46:21,324 INFO L138 BoogieDeclarations]: Found implementation of procedure mISDN_register_device [2020-10-28 02:46:21,324 INFO L138 BoogieDeclarations]: Found implementation of procedure mISDN_unregister_device [2020-10-28 02:46:21,324 INFO L138 BoogieDeclarations]: Found implementation of procedure memchr_inv [2020-10-28 02:46:21,324 INFO L138 BoogieDeclarations]: Found implementation of procedure module_put [2020-10-28 02:46:21,324 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock [2020-10-28 02:46:21,325 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_trylock [2020-10-28 02:46:21,325 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2020-10-28 02:46:21,325 INFO L138 BoogieDeclarations]: Found implementation of procedure printk [2020-10-28 02:46:21,325 INFO L138 BoogieDeclarations]: Found implementation of procedure queue_ch_frame [2020-10-28 02:46:21,325 INFO L138 BoogieDeclarations]: Found implementation of procedure recv_Dchannel [2020-10-28 02:46:21,325 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule_timeout [2020-10-28 02:46:21,326 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule_work [2020-10-28 02:46:21,326 INFO L138 BoogieDeclarations]: Found implementation of procedure send_sig [2020-10-28 02:46:21,326 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_put [2020-10-28 02:46:21,326 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_trim [2020-10-28 02:46:21,326 INFO L138 BoogieDeclarations]: Found implementation of procedure sock_create [2020-10-28 02:46:21,326 INFO L138 BoogieDeclarations]: Found implementation of procedure sock_release [2020-10-28 02:46:21,327 INFO L138 BoogieDeclarations]: Found implementation of procedure try_module_get [2020-10-28 02:46:21,327 INFO L138 BoogieDeclarations]: Found implementation of procedure vfree [2020-10-28 02:46:21,327 INFO L138 BoogieDeclarations]: Found implementation of procedure vzalloc [2020-10-28 02:46:21,327 INFO L138 BoogieDeclarations]: Found implementation of procedure wait_for_completion [2020-10-28 02:46:21,327 INFO L138 BoogieDeclarations]: Found implementation of procedure wake_up_process [2020-10-28 02:46:21,327 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2020-10-28 02:46:21,328 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2020-10-28 02:46:21,328 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-28 02:46:21,328 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-28 02:46:21,328 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_perror_fail [2020-10-28 02:46:21,328 INFO L130 BoogieDeclarations]: Found specification of procedure __assert [2020-10-28 02:46:21,329 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-28 02:46:21,329 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-28 02:46:21,329 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2020-10-28 02:46:21,329 INFO L130 BoogieDeclarations]: Found specification of procedure test_and_set_bit [2020-10-28 02:46:21,329 INFO L130 BoogieDeclarations]: Found specification of procedure test_and_clear_bit [2020-10-28 02:46:21,329 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2020-10-28 02:46:21,330 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-28 02:46:21,330 INFO L130 BoogieDeclarations]: Found specification of procedure variable_test_bit [2020-10-28 02:46:21,330 INFO L130 BoogieDeclarations]: Found specification of procedure __arch_swab32 [2020-10-28 02:46:21,330 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab16 [2020-10-28 02:46:21,330 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab32 [2020-10-28 02:46:21,330 INFO L130 BoogieDeclarations]: Found specification of procedure printk [2020-10-28 02:46:21,331 INFO L130 BoogieDeclarations]: Found specification of procedure sprintf [2020-10-28 02:46:21,331 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2020-10-28 02:46:21,331 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-10-28 02:46:21,331 INFO L130 BoogieDeclarations]: Found specification of procedure __list_add [2020-10-28 02:46:21,331 INFO L130 BoogieDeclarations]: Found specification of procedure list_add [2020-10-28 02:46:21,331 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-10-28 02:46:21,331 INFO L130 BoogieDeclarations]: Found specification of procedure list_add_tail [2020-10-28 02:46:21,332 INFO L130 BoogieDeclarations]: Found specification of procedure list_del [2020-10-28 02:46:21,332 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2020-10-28 02:46:21,332 INFO L130 BoogieDeclarations]: Found specification of procedure get_current [2020-10-28 02:46:21,332 INFO L130 BoogieDeclarations]: Found specification of procedure memchr_inv [2020-10-28 02:46:21,332 INFO L130 BoogieDeclarations]: Found specification of procedure PTR_ERR [2020-10-28 02:46:21,332 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2020-10-28 02:46:21,333 INFO L130 BoogieDeclarations]: Found specification of procedure lockdep_init_map [2020-10-28 02:46:21,333 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_trylock [2020-10-28 02:46:21,333 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_trylock_4 [2020-10-28 02:46:21,333 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2020-10-28 02:46:21,333 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_2 [2020-10-28 02:46:21,333 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_5 [2020-10-28 02:46:21,334 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_7 [2020-10-28 02:46:21,334 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock [2020-10-28 02:46:21,334 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_1 [2020-10-28 02:46:21,334 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_3 [2020-10-28 02:46:21,334 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_6 [2020-10-28 02:46:21,334 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_cred_guard_mutex_of_signal_struct [2020-10-28 02:46:21,334 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_cred_guard_mutex_of_signal_struct [2020-10-28 02:46:21,335 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_lock [2020-10-28 02:46:21,335 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_lock [2020-10-28 02:46:21,335 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_mutex_of_device [2020-10-28 02:46:21,335 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_trylock_mutex_of_device [2020-10-28 02:46:21,335 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_mutex_of_device [2020-10-28 02:46:21,335 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-28 02:46:21,335 INFO L130 BoogieDeclarations]: Found specification of procedure test_ti_thread_flag [2020-10-28 02:46:21,336 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2020-10-28 02:46:21,336 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock [2020-10-28 02:46:21,336 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_unlock [2020-10-28 02:46:21,336 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2020-10-28 02:46:21,336 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2020-10-28 02:46:21,336 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2020-10-28 02:46:21,336 INFO L130 BoogieDeclarations]: Found specification of procedure __init_waitqueue_head [2020-10-28 02:46:21,337 INFO L130 BoogieDeclarations]: Found specification of procedure init_completion [2020-10-28 02:46:21,337 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-28 02:46:21,337 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-28 02:46:21,337 INFO L130 BoogieDeclarations]: Found specification of procedure wait_for_completion [2020-10-28 02:46:21,337 INFO L130 BoogieDeclarations]: Found specification of procedure complete [2020-10-28 02:46:21,337 INFO L130 BoogieDeclarations]: Found specification of procedure init_timer_key [2020-10-28 02:46:21,338 INFO L130 BoogieDeclarations]: Found specification of procedure timer_pending [2020-10-28 02:46:21,338 INFO L130 BoogieDeclarations]: Found specification of procedure del_timer [2020-10-28 02:46:21,338 INFO L130 BoogieDeclarations]: Found specification of procedure add_timer [2020-10-28 02:46:21,338 INFO L130 BoogieDeclarations]: Found specification of procedure __init_work [2020-10-28 02:46:21,338 INFO L130 BoogieDeclarations]: Found specification of procedure schedule_work [2020-10-28 02:46:21,338 INFO L130 BoogieDeclarations]: Found specification of procedure cancel_work_sync [2020-10-28 02:46:21,339 INFO L130 BoogieDeclarations]: Found specification of procedure try_module_get [2020-10-28 02:46:21,339 INFO L130 BoogieDeclarations]: Found specification of procedure module_put [2020-10-28 02:46:21,339 INFO L130 BoogieDeclarations]: Found specification of procedure test_channelmap [2020-10-28 02:46:21,339 INFO L130 BoogieDeclarations]: Found specification of procedure set_channelmap [2020-10-28 02:46:21,339 INFO L130 BoogieDeclarations]: Found specification of procedure sock_create [2020-10-28 02:46:21,339 INFO L130 BoogieDeclarations]: Found specification of procedure sock_release [2020-10-28 02:46:21,340 INFO L130 BoogieDeclarations]: Found specification of procedure kernel_sendmsg [2020-10-28 02:46:21,340 INFO L130 BoogieDeclarations]: Found specification of procedure kernel_recvmsg [2020-10-28 02:46:21,340 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2020-10-28 02:46:21,340 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-10-28 02:46:21,340 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-10-28 02:46:21,340 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2020-10-28 02:46:21,341 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2020-10-28 02:46:21,341 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-10-28 02:46:21,341 INFO L130 BoogieDeclarations]: Found specification of procedure __kmalloc [2020-10-28 02:46:21,341 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2020-10-28 02:46:21,341 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2020-10-28 02:46:21,341 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2020-10-28 02:46:21,341 INFO L130 BoogieDeclarations]: Found specification of procedure consume_skb [2020-10-28 02:46:21,342 INFO L130 BoogieDeclarations]: Found specification of procedure __alloc_skb [2020-10-28 02:46:21,342 INFO L130 BoogieDeclarations]: Found specification of procedure alloc_skb [2020-10-28 02:46:21,342 INFO L130 BoogieDeclarations]: Found specification of procedure skb_put [2020-10-28 02:46:21,342 INFO L130 BoogieDeclarations]: Found specification of procedure skb_reserve [2020-10-28 02:46:21,342 INFO L130 BoogieDeclarations]: Found specification of procedure skb_trim [2020-10-28 02:46:21,342 INFO L130 BoogieDeclarations]: Found specification of procedure schedule_timeout [2020-10-28 02:46:21,342 INFO L130 BoogieDeclarations]: Found specification of procedure wake_up_process [2020-10-28 02:46:21,342 INFO L130 BoogieDeclarations]: Found specification of procedure send_sig [2020-10-28 02:46:21,343 INFO L130 BoogieDeclarations]: Found specification of procedure allow_signal [2020-10-28 02:46:21,343 INFO L130 BoogieDeclarations]: Found specification of procedure test_tsk_thread_flag [2020-10-28 02:46:21,343 INFO L130 BoogieDeclarations]: Found specification of procedure signal_pending [2020-10-28 02:46:21,343 INFO L130 BoogieDeclarations]: Found specification of procedure mI_alloc_skb [2020-10-28 02:46:21,343 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy [2020-10-28 02:46:21,343 INFO L130 BoogieDeclarations]: Found specification of procedure _alloc_mISDN_skb [2020-10-28 02:46:21,343 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2020-10-28 02:46:21,344 INFO L130 BoogieDeclarations]: Found specification of procedure _queue_data [2020-10-28 02:46:21,344 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2020-10-28 02:46:21,344 INFO L130 BoogieDeclarations]: Found specification of procedure mISDN_register_device [2020-10-28 02:46:21,344 INFO L130 BoogieDeclarations]: Found specification of procedure mISDN_unregister_device [2020-10-28 02:46:21,344 INFO L130 BoogieDeclarations]: Found specification of procedure mISDN_initdchannel [2020-10-28 02:46:21,344 INFO L130 BoogieDeclarations]: Found specification of procedure mISDN_initbchannel [2020-10-28 02:46:21,344 INFO L130 BoogieDeclarations]: Found specification of procedure mISDN_freedchannel [2020-10-28 02:46:21,345 INFO L130 BoogieDeclarations]: Found specification of procedure mISDN_freebchannel [2020-10-28 02:46:21,345 INFO L130 BoogieDeclarations]: Found specification of procedure queue_ch_frame [2020-10-28 02:46:21,345 INFO L130 BoogieDeclarations]: Found specification of procedure recv_Dchannel [2020-10-28 02:46:21,345 INFO L130 BoogieDeclarations]: Found specification of procedure kthread_create_on_node [2020-10-28 02:46:21,345 INFO L130 BoogieDeclarations]: Found specification of procedure l1oip_law_to_4bit [2020-10-28 02:46:21,345 INFO L130 BoogieDeclarations]: Found specification of procedure l1oip_4bit_to_law [2020-10-28 02:46:21,346 INFO L130 BoogieDeclarations]: Found specification of procedure l1oip_alaw_to_ulaw [2020-10-28 02:46:21,346 INFO L130 BoogieDeclarations]: Found specification of procedure l1oip_ulaw_to_alaw [2020-10-28 02:46:21,346 INFO L130 BoogieDeclarations]: Found specification of procedure l1oip_4bit_free [2020-10-28 02:46:21,346 INFO L130 BoogieDeclarations]: Found specification of procedure l1oip_4bit_alloc [2020-10-28 02:46:21,346 INFO L130 BoogieDeclarations]: Found specification of procedure l1oip_socket_send [2020-10-28 02:46:21,346 INFO L130 BoogieDeclarations]: Found specification of procedure l1oip_socket_recv [2020-10-28 02:46:21,346 INFO L130 BoogieDeclarations]: Found specification of procedure l1oip_socket_parse [2020-10-28 02:46:21,347 INFO L130 BoogieDeclarations]: Found specification of procedure l1oip_socket_thread [2020-10-28 02:46:21,347 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~int~TO~int [2020-10-28 02:46:21,347 INFO L130 BoogieDeclarations]: Found specification of procedure l1oip_socket_close [2020-10-28 02:46:21,347 INFO L130 BoogieDeclarations]: Found specification of procedure l1oip_socket_open [2020-10-28 02:46:21,347 INFO L130 BoogieDeclarations]: Found specification of procedure l1oip_send_bh [2020-10-28 02:46:21,347 INFO L130 BoogieDeclarations]: Found specification of procedure l1oip_keepalive [2020-10-28 02:46:21,348 INFO L130 BoogieDeclarations]: Found specification of procedure l1oip_timeout [2020-10-28 02:46:21,348 INFO L130 BoogieDeclarations]: Found specification of procedure handle_dmsg [2020-10-28 02:46:21,348 INFO L130 BoogieDeclarations]: Found specification of procedure channel_dctrl [2020-10-28 02:46:21,348 INFO L130 BoogieDeclarations]: Found specification of procedure open_dchannel [2020-10-28 02:46:21,348 INFO L130 BoogieDeclarations]: Found specification of procedure open_bchannel [2020-10-28 02:46:21,348 INFO L130 BoogieDeclarations]: Found specification of procedure l1oip_dctrl [2020-10-28 02:46:21,348 INFO L130 BoogieDeclarations]: Found specification of procedure handle_bmsg [2020-10-28 02:46:21,349 INFO L130 BoogieDeclarations]: Found specification of procedure channel_bctrl [2020-10-28 02:46:21,349 INFO L130 BoogieDeclarations]: Found specification of procedure l1oip_bctrl [2020-10-28 02:46:21,349 INFO L130 BoogieDeclarations]: Found specification of procedure release_card [2020-10-28 02:46:21,349 INFO L130 BoogieDeclarations]: Found specification of procedure l1oip_cleanup [2020-10-28 02:46:21,349 INFO L130 BoogieDeclarations]: Found specification of procedure init_card [2020-10-28 02:46:21,349 INFO L130 BoogieDeclarations]: Found specification of procedure l1oip_init [2020-10-28 02:46:21,349 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize [2020-10-28 02:46:21,350 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2020-10-28 02:46:21,350 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-28 02:46:21,350 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_trylock_18 [2020-10-28 02:46:21,350 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_16 [2020-10-28 02:46:21,350 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_19 [2020-10-28 02:46:21,350 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_21 [2020-10-28 02:46:21,350 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_15 [2020-10-28 02:46:21,351 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_17 [2020-10-28 02:46:21,351 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_20 [2020-10-28 02:46:21,351 INFO L130 BoogieDeclarations]: Found specification of procedure vzalloc [2020-10-28 02:46:21,351 INFO L130 BoogieDeclarations]: Found specification of procedure vfree [2020-10-28 02:46:21,351 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2020-10-28 02:46:21,351 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_trap [2020-10-28 02:46:21,351 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_interruptible_cred_guard_mutex_of_signal_struct [2020-10-28 02:46:21,352 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_killable_cred_guard_mutex_of_signal_struct [2020-10-28 02:46:21,352 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_trylock_cred_guard_mutex_of_signal_struct [2020-10-28 02:46:21,352 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_dec_and_mutex_lock_cred_guard_mutex_of_signal_struct [2020-10-28 02:46:21,352 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_is_locked_cred_guard_mutex_of_signal_struct [2020-10-28 02:46:21,352 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_interruptible_lock [2020-10-28 02:46:21,352 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_killable_lock [2020-10-28 02:46:21,352 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_trylock_lock [2020-10-28 02:46:21,352 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_dec_and_mutex_lock_lock [2020-10-28 02:46:21,353 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_is_locked_lock [2020-10-28 02:46:21,353 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_interruptible_mutex_of_device [2020-10-28 02:46:21,353 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_killable_mutex_of_device [2020-10-28 02:46:21,353 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_dec_and_mutex_lock_mutex_of_device [2020-10-28 02:46:21,353 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_is_locked_mutex_of_device [2020-10-28 02:46:21,353 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_bool [2020-10-28 02:46:21,353 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_long [2020-10-28 02:46:21,354 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-10-28 02:46:21,354 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-28 02:46:21,354 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-28 02:46:21,354 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2020-10-28 02:46:21,354 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-28 02:46:21,354 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2020-10-28 02:46:21,354 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2020-10-28 02:46:21,355 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2020-10-28 02:46:21,355 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2020-10-28 02:46:38,802 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-28 02:46:38,803 INFO L298 CfgBuilder]: Removed 0 assume(true) statements. [2020-10-28 02:46:38,807 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 02:46:38 BoogieIcfgContainer [2020-10-28 02:46:38,807 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-28 02:46:38,809 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-28 02:46:38,809 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-28 02:46:38,813 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-28 02:46:38,813 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.10 02:46:18" (1/3) ... [2020-10-28 02:46:38,814 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3edb406f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.10 02:46:38, skipping insertion in model container [2020-10-28 02:46:38,814 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 02:46:20" (2/3) ... [2020-10-28 02:46:38,815 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3edb406f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.10 02:46:38, skipping insertion in model container [2020-10-28 02:46:38,815 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 02:46:38" (3/3) ... [2020-10-28 02:46:38,816 INFO L111 eAbstractionObserver]: Analyzing ICFG 32_7a_cilled_linux-3.8-rc1-drivers--isdn--mISDN--l1oip.ko-main.cil.out.i [2020-10-28 02:46:38,828 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-28 02:46:38,834 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-28 02:46:38,848 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-28 02:46:38,879 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-28 02:46:38,880 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-28 02:46:38,880 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-28 02:46:38,880 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-28 02:46:38,880 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-28 02:46:38,880 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-28 02:46:38,880 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-28 02:46:38,880 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-28 02:46:38,921 INFO L276 IsEmpty]: Start isEmpty. Operand 1086 states. [2020-10-28 02:46:38,928 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2020-10-28 02:46:38,929 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 02:46:38,929 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 02:46:38,930 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 02:46:38,936 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 02:46:38,936 INFO L82 PathProgramCache]: Analyzing trace with hash -872477477, now seen corresponding path program 1 times [2020-10-28 02:46:38,945 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 02:46:38,946 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [534304133] [2020-10-28 02:46:38,946 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 02:46:39,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 02:46:40,068 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 02:46:40,542 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 02:46:46,104 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 02:46:46,105 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 52 [2020-10-28 02:46:46,105 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-28 02:46:46,105 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6363 [2020-10-28 02:46:46,107 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 02:46:46,107 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 02:46:46,108 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 18 [2020-10-28 02:46:46,108 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-28 02:46:46,108 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-28 02:47:05,371 WARN L193 SmtUtils]: Spent 18.73 s on a formula simplification that was a NOOP. DAG size: 1213 [2020-10-28 02:47:05,375 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 02:47:05,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 02:47:05,444 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 02:47:07,641 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 02:47:07,642 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 02:47:07,642 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 02:47:07,642 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2217 [2020-10-28 02:47:07,642 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 02:47:07,643 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 02:47:07,643 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 02:47:07,643 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 02:47:07,643 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 02:47:07,851 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-28 02:47:07,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 02:47:07,859 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 02:47:07,866 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 02:47:07,867 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 02:47:07,867 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 02:47:07,868 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-28 02:47:07,868 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 02:47:07,869 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 02:47:07,869 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 02:47:07,874 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 02:47:07,874 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 5 [2020-10-28 02:47:07,950 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-10-28 02:47:07,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 02:47:07,966 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 02:47:07,981 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 02:47:07,982 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-28 02:47:07,982 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 02:47:07,982 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-10-28 02:47:07,982 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 02:47:07,982 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 02:47:07,982 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 14 [2020-10-28 02:47:07,983 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 02:47:07,983 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 02:47:08,034 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 02:47:08,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 02:47:08,043 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 02:47:08,055 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 02:47:08,055 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-28 02:47:08,056 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 02:47:08,056 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-28 02:47:08,056 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 02:47:08,056 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 02:47:08,056 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 02:47:08,057 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 02:47:08,057 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 02:47:08,110 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-28 02:47:08,111 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [534304133] [2020-10-28 02:47:08,113 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-28 02:47:08,114 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-28 02:47:08,116 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1578061982] [2020-10-28 02:47:08,122 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-28 02:47:08,123 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 02:47:08,141 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-28 02:47:08,142 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-28 02:47:08,145 INFO L87 Difference]: Start difference. First operand 1086 states. Second operand 7 states. [2020-10-28 02:47:26,940 WARN L193 SmtUtils]: Spent 18.70 s on a formula simplification that was a NOOP. DAG size: 1219 [2020-10-28 02:47:49,906 WARN L193 SmtUtils]: Spent 20.01 s on a formula simplification that was a NOOP. DAG size: 1221 [2020-10-28 02:49:06,306 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 02:49:06,306 INFO L93 Difference]: Finished difference Result 2117 states and 2883 transitions. [2020-10-28 02:49:06,309 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-28 02:49:06,310 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 34 [2020-10-28 02:49:06,311 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 02:49:06,345 INFO L225 Difference]: With dead ends: 2117 [2020-10-28 02:49:06,345 INFO L226 Difference]: Without dead ends: 1421 [2020-10-28 02:49:06,355 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 58.0s TimeCoverageRelationStatistics Valid=61, Invalid=121, Unknown=0, NotChecked=0, Total=182 [2020-10-28 02:49:06,378 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1421 states. [2020-10-28 02:49:07,184 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1421 to 1092. [2020-10-28 02:49:07,185 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1092 states. [2020-10-28 02:49:07,194 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1092 states to 1092 states and 1405 transitions. [2020-10-28 02:49:07,197 INFO L78 Accepts]: Start accepts. Automaton has 1092 states and 1405 transitions. Word has length 34 [2020-10-28 02:49:07,197 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 02:49:07,197 INFO L481 AbstractCegarLoop]: Abstraction has 1092 states and 1405 transitions. [2020-10-28 02:49:07,197 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-28 02:49:07,197 INFO L276 IsEmpty]: Start isEmpty. Operand 1092 states and 1405 transitions. [2020-10-28 02:49:07,200 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2020-10-28 02:49:07,201 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 02:49:07,201 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 02:49:07,201 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-28 02:49:07,201 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 02:49:07,202 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 02:49:07,202 INFO L82 PathProgramCache]: Analyzing trace with hash 39145816, now seen corresponding path program 1 times [2020-10-28 02:49:07,202 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 02:49:07,202 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [574839147] [2020-10-28 02:49:07,203 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 02:49:07,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 02:49:07,628 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 02:49:08,015 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 02:49:08,593 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 02:49:22,545 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 02:49:22,545 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 74 [2020-10-28 02:49:22,545 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-28 02:49:22,545 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15119 [2020-10-28 02:49:22,546 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 02:49:22,546 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 02:49:22,546 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 60 [2020-10-28 02:49:22,546 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-28 02:49:22,546 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 02:49:42,455 WARN L193 SmtUtils]: Spent 19.57 s on a formula simplification that was a NOOP. DAG size: 1213 [2020-10-28 02:49:42,461 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 02:49:42,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 02:49:42,524 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 02:49:46,949 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 02:49:46,949 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 02:49:46,949 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 02:49:46,949 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4442 [2020-10-28 02:49:46,949 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 02:49:46,950 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 02:49:46,950 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 02:49:46,950 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 02:49:46,950 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 02:49:47,139 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-28 02:49:47,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 02:49:47,145 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 02:49:47,150 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 02:49:47,151 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 02:49:47,151 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 02:49:47,151 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-28 02:49:47,151 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 02:49:47,151 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 02:49:47,152 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 02:49:47,152 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 02:49:47,152 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 02:49:47,227 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2020-10-28 02:49:47,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 02:49:47,236 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 02:49:47,249 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 02:49:47,397 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 02:49:47,397 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 36 [2020-10-28 02:49:47,397 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-28 02:49:47,398 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 165 [2020-10-28 02:49:47,398 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 02:49:47,398 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 02:49:47,398 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 26 [2020-10-28 02:49:47,398 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-28 02:49:47,398 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 02:49:47,574 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-28 02:49:47,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 02:49:47,587 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 02:49:47,596 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 02:49:47,596 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 02:49:47,597 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 02:49:47,597 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-28 02:49:47,597 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 02:49:47,597 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 02:49:47,597 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 02:49:47,598 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 02:49:47,600 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-28 02:49:47,606 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-10-28 02:49:47,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 02:49:47,611 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 02:49:47,613 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 02:49:47,614 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 02:49:47,614 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 02:49:47,614 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-28 02:49:47,614 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 02:49:47,614 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 02:49:47,615 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 02:49:47,615 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 02:49:47,615 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 02:49:47,619 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-28 02:49:47,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 02:49:47,626 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 02:49:47,630 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 02:49:47,630 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 02:49:47,630 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 02:49:47,631 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-28 02:49:47,631 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 02:49:47,631 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 02:49:47,631 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 02:49:47,631 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 02:49:47,632 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 02:49:47,714 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2020-10-28 02:49:47,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 02:49:47,726 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 02:49:47,745 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 02:49:47,746 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-28 02:49:47,746 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 02:49:47,746 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-10-28 02:49:47,746 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 02:49:47,747 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-28 02:49:47,747 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 02:49:47,747 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-28 02:49:47,747 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 02:49:47,846 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-28 02:49:47,848 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [574839147] [2020-10-28 02:49:47,849 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-28 02:49:47,849 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-10-28 02:49:47,849 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [761442655] [2020-10-28 02:49:47,851 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-28 02:49:47,851 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 02:49:47,852 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-28 02:49:47,853 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2020-10-28 02:49:47,853 INFO L87 Difference]: Start difference. First operand 1092 states and 1405 transitions. Second operand 11 states. [2020-10-28 02:50:07,356 WARN L193 SmtUtils]: Spent 19.43 s on a formula simplification that was a NOOP. DAG size: 1219