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 -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf --traceabstraction.trace.refinement.strategy SIFA_TAIPAN --sifa.abstract.domain CompoundDomain --rcfgbuilder.size.of.a.code.block LoopFreeBlock --sifa.call.summarizer TopInputCallSummarizer --sifa.fluid SizeLimitFluid --sifa.simplification.technique SIMPLIFY_QUICK -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 0.1.24-13a467a-m [2019-10-15 02:08:24,534 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-15 02:08:24,537 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-15 02:08:24,557 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-15 02:08:24,557 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-15 02:08:24,559 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-15 02:08:24,561 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-15 02:08:24,571 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-15 02:08:24,576 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-15 02:08:24,579 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-15 02:08:24,581 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-15 02:08:24,582 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-15 02:08:24,582 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-15 02:08:24,584 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-15 02:08:24,586 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-15 02:08:24,588 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-15 02:08:24,589 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-15 02:08:24,590 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-15 02:08:24,592 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-15 02:08:24,597 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-15 02:08:24,602 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-15 02:08:24,605 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-15 02:08:24,607 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-15 02:08:24,608 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-15 02:08:24,611 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-15 02:08:24,611 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-15 02:08:24,611 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-15 02:08:24,613 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-15 02:08:24,614 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-15 02:08:24,615 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-15 02:08:24,615 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-15 02:08:24,617 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-15 02:08:24,618 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-15 02:08:24,619 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-15 02:08:24,620 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-15 02:08:24,621 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-15 02:08:24,621 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-15 02:08:24,622 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-15 02:08:24,622 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-15 02:08:24,623 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-15 02:08:24,624 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-15 02:08:24,625 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2019-10-15 02:08:24,658 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-15 02:08:24,661 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-15 02:08:24,662 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-15 02:08:24,662 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-15 02:08:24,662 INFO L138 SettingsManager]: * Use SBE=true [2019-10-15 02:08:24,663 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-15 02:08:24,663 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-15 02:08:24,663 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-15 02:08:24,668 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-15 02:08:24,668 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-15 02:08:24,668 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-15 02:08:24,668 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-15 02:08:24,668 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-15 02:08:24,669 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-15 02:08:24,669 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-15 02:08:24,669 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-15 02:08:24,669 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-15 02:08:24,669 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-15 02:08:24,670 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-15 02:08:24,670 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-15 02:08:24,670 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-15 02:08:24,671 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-15 02:08:24,671 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-15 02:08:24,672 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-15 02:08:24,672 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-15 02:08:24,672 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-15 02:08:24,672 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-15 02:08:24,672 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-15 02:08:24,672 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> SIFA_TAIPAN Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Abstract Domain -> CompoundDomain Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> LoopFreeBlock Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Call Summarizer -> TopInputCallSummarizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Fluid -> SizeLimitFluid Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Simplification Technique -> SIMPLIFY_QUICK [2019-10-15 02:08:24,962 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-15 02:08:24,976 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-15 02:08:24,980 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-15 02:08:24,982 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-15 02:08:24,983 INFO L275 PluginConnector]: CDTParser initialized [2019-10-15 02:08:24,983 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--isdn--mISDN--l1oip.ko-main.cil.out.i [2019-10-15 02:08:25,069 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bcf0e084e/8ecbc048f1514f8fb3ebc95a7b7b343d/FLAG0c44f768f [2019-10-15 02:08:25,938 INFO L306 CDTParser]: Found 1 translation units. [2019-10-15 02:08:25,939 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--isdn--mISDN--l1oip.ko-main.cil.out.i [2019-10-15 02:08:25,980 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bcf0e084e/8ecbc048f1514f8fb3ebc95a7b7b343d/FLAG0c44f768f [2019-10-15 02:08:26,441 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bcf0e084e/8ecbc048f1514f8fb3ebc95a7b7b343d [2019-10-15 02:08:26,451 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-15 02:08:26,452 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-15 02:08:26,453 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-15 02:08:26,453 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-15 02:08:26,457 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-15 02:08:26,458 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 02:08:26" (1/1) ... [2019-10-15 02:08:26,461 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3e42ed26 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 02:08:26, skipping insertion in model container [2019-10-15 02:08:26,461 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 02:08:26" (1/1) ... [2019-10-15 02:08:26,469 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-15 02:08:26,613 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-15 02:08:28,703 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-15 02:08:28,863 INFO L188 MainTranslator]: Completed pre-run [2019-10-15 02:08:29,269 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-15 02:08:29,535 INFO L192 MainTranslator]: Completed translation [2019-10-15 02:08:29,535 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 02:08:29 WrapperNode [2019-10-15 02:08:29,536 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-15 02:08:29,536 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-15 02:08:29,537 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-15 02:08:29,537 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-15 02:08:29,552 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 02:08:29" (1/1) ... [2019-10-15 02:08:29,553 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 02:08:29" (1/1) ... [2019-10-15 02:08:29,649 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 02:08:29" (1/1) ... [2019-10-15 02:08:29,649 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 02:08:29" (1/1) ... [2019-10-15 02:08:29,812 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 02:08:29" (1/1) ... [2019-10-15 02:08:29,839 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 02:08:29" (1/1) ... [2019-10-15 02:08:29,885 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 02:08:29" (1/1) ... [2019-10-15 02:08:29,911 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-15 02:08:29,912 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-15 02:08:29,912 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-15 02:08:29,912 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-15 02:08:29,914 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 02:08:29" (1/1) ... No working directory specified, using /storage/repos/ultimate/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 [2019-10-15 02:08:29,999 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-15 02:08:29,999 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-15 02:08:29,999 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2019-10-15 02:08:30,000 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~int~TO~int [2019-10-15 02:08:30,000 INFO L138 BoogieDeclarations]: Found implementation of procedure test_and_set_bit [2019-10-15 02:08:30,002 INFO L138 BoogieDeclarations]: Found implementation of procedure test_and_clear_bit [2019-10-15 02:08:30,004 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2019-10-15 02:08:30,005 INFO L138 BoogieDeclarations]: Found implementation of procedure variable_test_bit [2019-10-15 02:08:30,005 INFO L138 BoogieDeclarations]: Found implementation of procedure __arch_swab32 [2019-10-15 02:08:30,005 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab16 [2019-10-15 02:08:30,005 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab32 [2019-10-15 02:08:30,008 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2019-10-15 02:08:30,008 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add [2019-10-15 02:08:30,008 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add_tail [2019-10-15 02:08:30,008 INFO L138 BoogieDeclarations]: Found implementation of procedure get_current [2019-10-15 02:08:30,009 INFO L138 BoogieDeclarations]: Found implementation of procedure PTR_ERR [2019-10-15 02:08:30,013 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2019-10-15 02:08:30,013 INFO L138 BoogieDeclarations]: Found implementation of procedure test_ti_thread_flag [2019-10-15 02:08:30,014 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2019-10-15 02:08:30,014 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2019-10-15 02:08:30,015 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2019-10-15 02:08:30,015 INFO L138 BoogieDeclarations]: Found implementation of procedure init_completion [2019-10-15 02:08:30,015 INFO L138 BoogieDeclarations]: Found implementation of procedure timer_pending [2019-10-15 02:08:30,015 INFO L138 BoogieDeclarations]: Found implementation of procedure test_channelmap [2019-10-15 02:08:30,016 INFO L138 BoogieDeclarations]: Found implementation of procedure set_channelmap [2019-10-15 02:08:30,016 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2019-10-15 02:08:30,016 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2019-10-15 02:08:30,016 INFO L138 BoogieDeclarations]: Found implementation of procedure __kmalloc [2019-10-15 02:08:30,016 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2019-10-15 02:08:30,016 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2019-10-15 02:08:30,016 INFO L138 BoogieDeclarations]: Found implementation of procedure alloc_skb [2019-10-15 02:08:30,017 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_reserve [2019-10-15 02:08:30,017 INFO L138 BoogieDeclarations]: Found implementation of procedure test_tsk_thread_flag [2019-10-15 02:08:30,017 INFO L138 BoogieDeclarations]: Found implementation of procedure signal_pending [2019-10-15 02:08:30,018 INFO L138 BoogieDeclarations]: Found implementation of procedure mI_alloc_skb [2019-10-15 02:08:30,018 INFO L138 BoogieDeclarations]: Found implementation of procedure _alloc_mISDN_skb [2019-10-15 02:08:30,018 INFO L138 BoogieDeclarations]: Found implementation of procedure _queue_data [2019-10-15 02:08:30,018 INFO L138 BoogieDeclarations]: Found implementation of procedure l1oip_socket_send [2019-10-15 02:08:30,018 INFO L138 BoogieDeclarations]: Found implementation of procedure l1oip_socket_recv [2019-10-15 02:08:30,018 INFO L138 BoogieDeclarations]: Found implementation of procedure l1oip_socket_parse [2019-10-15 02:08:30,019 INFO L138 BoogieDeclarations]: Found implementation of procedure l1oip_socket_thread [2019-10-15 02:08:30,019 INFO L138 BoogieDeclarations]: Found implementation of procedure l1oip_socket_close [2019-10-15 02:08:30,020 INFO L138 BoogieDeclarations]: Found implementation of procedure l1oip_socket_open [2019-10-15 02:08:30,020 INFO L138 BoogieDeclarations]: Found implementation of procedure l1oip_send_bh [2019-10-15 02:08:30,020 INFO L138 BoogieDeclarations]: Found implementation of procedure l1oip_keepalive [2019-10-15 02:08:30,020 INFO L138 BoogieDeclarations]: Found implementation of procedure l1oip_timeout [2019-10-15 02:08:30,020 INFO L138 BoogieDeclarations]: Found implementation of procedure handle_dmsg [2019-10-15 02:08:30,020 INFO L138 BoogieDeclarations]: Found implementation of procedure channel_dctrl [2019-10-15 02:08:30,021 INFO L138 BoogieDeclarations]: Found implementation of procedure open_dchannel [2019-10-15 02:08:30,021 INFO L138 BoogieDeclarations]: Found implementation of procedure open_bchannel [2019-10-15 02:08:30,021 INFO L138 BoogieDeclarations]: Found implementation of procedure l1oip_dctrl [2019-10-15 02:08:30,021 INFO L138 BoogieDeclarations]: Found implementation of procedure handle_bmsg [2019-10-15 02:08:30,021 INFO L138 BoogieDeclarations]: Found implementation of procedure channel_bctrl [2019-10-15 02:08:30,021 INFO L138 BoogieDeclarations]: Found implementation of procedure l1oip_bctrl [2019-10-15 02:08:30,021 INFO L138 BoogieDeclarations]: Found implementation of procedure release_card [2019-10-15 02:08:30,022 INFO L138 BoogieDeclarations]: Found implementation of procedure l1oip_cleanup [2019-10-15 02:08:30,022 INFO L138 BoogieDeclarations]: Found implementation of procedure init_card [2019-10-15 02:08:30,022 INFO L138 BoogieDeclarations]: Found implementation of procedure l1oip_init [2019-10-15 02:08:30,022 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-15 02:08:30,023 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_1 [2019-10-15 02:08:30,023 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_2 [2019-10-15 02:08:30,023 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_3 [2019-10-15 02:08:30,024 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_trylock_4 [2019-10-15 02:08:30,024 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_5 [2019-10-15 02:08:30,024 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_6 [2019-10-15 02:08:30,024 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_7 [2019-10-15 02:08:30,024 INFO L138 BoogieDeclarations]: Found implementation of procedure l1oip_law_to_4bit [2019-10-15 02:08:30,025 INFO L138 BoogieDeclarations]: Found implementation of procedure l1oip_4bit_to_law [2019-10-15 02:08:30,025 INFO L138 BoogieDeclarations]: Found implementation of procedure l1oip_alaw_to_ulaw [2019-10-15 02:08:30,025 INFO L138 BoogieDeclarations]: Found implementation of procedure l1oip_ulaw_to_alaw [2019-10-15 02:08:30,025 INFO L138 BoogieDeclarations]: Found implementation of procedure l1oip_4bit_free [2019-10-15 02:08:30,025 INFO L138 BoogieDeclarations]: Found implementation of procedure l1oip_4bit_alloc [2019-10-15 02:08:30,026 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_15 [2019-10-15 02:08:30,027 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_16 [2019-10-15 02:08:30,027 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_17 [2019-10-15 02:08:30,027 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_trylock_18 [2019-10-15 02:08:30,028 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_19 [2019-10-15 02:08:30,028 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_20 [2019-10-15 02:08:30,028 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_21 [2019-10-15 02:08:30,028 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2019-10-15 02:08:30,029 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2019-10-15 02:08:30,029 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_trap [2019-10-15 02:08:30,029 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_interruptible_cred_guard_mutex_of_signal_struct [2019-10-15 02:08:30,029 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_killable_cred_guard_mutex_of_signal_struct [2019-10-15 02:08:30,030 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_cred_guard_mutex_of_signal_struct [2019-10-15 02:08:30,030 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_trylock_cred_guard_mutex_of_signal_struct [2019-10-15 02:08:30,030 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_dec_and_mutex_lock_cred_guard_mutex_of_signal_struct [2019-10-15 02:08:30,031 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_is_locked_cred_guard_mutex_of_signal_struct [2019-10-15 02:08:30,031 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_cred_guard_mutex_of_signal_struct [2019-10-15 02:08:30,031 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_interruptible_lock [2019-10-15 02:08:30,031 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_killable_lock [2019-10-15 02:08:30,031 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_lock [2019-10-15 02:08:30,032 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_trylock_lock [2019-10-15 02:08:30,032 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_dec_and_mutex_lock_lock [2019-10-15 02:08:30,032 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_is_locked_lock [2019-10-15 02:08:30,032 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_lock [2019-10-15 02:08:30,032 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_interruptible_mutex_of_device [2019-10-15 02:08:30,032 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_killable_mutex_of_device [2019-10-15 02:08:30,033 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_mutex_of_device [2019-10-15 02:08:30,033 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_trylock_mutex_of_device [2019-10-15 02:08:30,033 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_dec_and_mutex_lock_mutex_of_device [2019-10-15 02:08:30,033 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_is_locked_mutex_of_device [2019-10-15 02:08:30,033 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_mutex_of_device [2019-10-15 02:08:30,033 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize [2019-10-15 02:08:30,033 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2019-10-15 02:08:30,034 INFO L138 BoogieDeclarations]: Found implementation of procedure __alloc_skb [2019-10-15 02:08:30,034 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_waitqueue_head [2019-10-15 02:08:30,034 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_work [2019-10-15 02:08:30,034 INFO L138 BoogieDeclarations]: Found implementation of procedure __list_add [2019-10-15 02:08:30,034 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2019-10-15 02:08:30,035 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock [2019-10-15 02:08:30,035 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_unlock [2019-10-15 02:08:30,035 INFO L138 BoogieDeclarations]: Found implementation of procedure add_timer [2019-10-15 02:08:30,036 INFO L138 BoogieDeclarations]: Found implementation of procedure allow_signal [2019-10-15 02:08:30,036 INFO L138 BoogieDeclarations]: Found implementation of procedure cancel_work_sync [2019-10-15 02:08:30,036 INFO L138 BoogieDeclarations]: Found implementation of procedure complete [2019-10-15 02:08:30,036 INFO L138 BoogieDeclarations]: Found implementation of procedure consume_skb [2019-10-15 02:08:30,036 INFO L138 BoogieDeclarations]: Found implementation of procedure del_timer [2019-10-15 02:08:30,037 INFO L138 BoogieDeclarations]: Found implementation of procedure init_timer_key [2019-10-15 02:08:30,037 INFO L138 BoogieDeclarations]: Found implementation of procedure kernel_recvmsg [2019-10-15 02:08:30,037 INFO L138 BoogieDeclarations]: Found implementation of procedure kernel_sendmsg [2019-10-15 02:08:30,038 INFO L138 BoogieDeclarations]: Found implementation of procedure kthread_create_on_node [2019-10-15 02:08:30,038 INFO L138 BoogieDeclarations]: Found implementation of procedure list_del [2019-10-15 02:08:30,038 INFO L138 BoogieDeclarations]: Found implementation of procedure lockdep_init_map [2019-10-15 02:08:30,039 INFO L138 BoogieDeclarations]: Found implementation of procedure mISDN_freebchannel [2019-10-15 02:08:30,039 INFO L138 BoogieDeclarations]: Found implementation of procedure mISDN_freedchannel [2019-10-15 02:08:30,039 INFO L138 BoogieDeclarations]: Found implementation of procedure mISDN_initbchannel [2019-10-15 02:08:30,040 INFO L138 BoogieDeclarations]: Found implementation of procedure mISDN_initdchannel [2019-10-15 02:08:30,040 INFO L138 BoogieDeclarations]: Found implementation of procedure mISDN_register_device [2019-10-15 02:08:30,040 INFO L138 BoogieDeclarations]: Found implementation of procedure mISDN_unregister_device [2019-10-15 02:08:30,040 INFO L138 BoogieDeclarations]: Found implementation of procedure memchr_inv [2019-10-15 02:08:30,040 INFO L138 BoogieDeclarations]: Found implementation of procedure module_put [2019-10-15 02:08:30,041 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock [2019-10-15 02:08:30,041 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_trylock [2019-10-15 02:08:30,045 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2019-10-15 02:08:30,045 INFO L138 BoogieDeclarations]: Found implementation of procedure printk [2019-10-15 02:08:30,045 INFO L138 BoogieDeclarations]: Found implementation of procedure queue_ch_frame [2019-10-15 02:08:30,046 INFO L138 BoogieDeclarations]: Found implementation of procedure recv_Dchannel [2019-10-15 02:08:30,047 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule_timeout [2019-10-15 02:08:30,047 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule_work [2019-10-15 02:08:30,047 INFO L138 BoogieDeclarations]: Found implementation of procedure send_sig [2019-10-15 02:08:30,047 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_put [2019-10-15 02:08:30,047 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_trim [2019-10-15 02:08:30,048 INFO L138 BoogieDeclarations]: Found implementation of procedure sock_create [2019-10-15 02:08:30,055 INFO L138 BoogieDeclarations]: Found implementation of procedure sock_release [2019-10-15 02:08:30,055 INFO L138 BoogieDeclarations]: Found implementation of procedure try_module_get [2019-10-15 02:08:30,055 INFO L138 BoogieDeclarations]: Found implementation of procedure vfree [2019-10-15 02:08:30,055 INFO L138 BoogieDeclarations]: Found implementation of procedure vzalloc [2019-10-15 02:08:30,055 INFO L138 BoogieDeclarations]: Found implementation of procedure wait_for_completion [2019-10-15 02:08:30,055 INFO L138 BoogieDeclarations]: Found implementation of procedure wake_up_process [2019-10-15 02:08:30,056 INFO L138 BoogieDeclarations]: Found implementation of procedure external_alloc [2019-10-15 02:08:30,056 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2019-10-15 02:08:30,056 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2019-10-15 02:08:30,057 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-15 02:08:30,057 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-15 02:08:30,058 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2019-10-15 02:08:30,058 INFO L130 BoogieDeclarations]: Found specification of procedure test_and_set_bit [2019-10-15 02:08:30,058 INFO L130 BoogieDeclarations]: Found specification of procedure test_and_clear_bit [2019-10-15 02:08:30,058 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2019-10-15 02:08:30,058 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-15 02:08:30,058 INFO L130 BoogieDeclarations]: Found specification of procedure variable_test_bit [2019-10-15 02:08:30,058 INFO L130 BoogieDeclarations]: Found specification of procedure __arch_swab32 [2019-10-15 02:08:30,059 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab16 [2019-10-15 02:08:30,059 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab32 [2019-10-15 02:08:30,059 INFO L130 BoogieDeclarations]: Found specification of procedure printk [2019-10-15 02:08:30,059 INFO L130 BoogieDeclarations]: Found specification of procedure sprintf [2019-10-15 02:08:30,059 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2019-10-15 02:08:30,059 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-15 02:08:30,059 INFO L130 BoogieDeclarations]: Found specification of procedure __list_add [2019-10-15 02:08:30,060 INFO L130 BoogieDeclarations]: Found specification of procedure list_add [2019-10-15 02:08:30,060 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-15 02:08:30,060 INFO L130 BoogieDeclarations]: Found specification of procedure list_add_tail [2019-10-15 02:08:30,060 INFO L130 BoogieDeclarations]: Found specification of procedure list_del [2019-10-15 02:08:30,060 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2019-10-15 02:08:30,060 INFO L130 BoogieDeclarations]: Found specification of procedure get_current [2019-10-15 02:08:30,060 INFO L130 BoogieDeclarations]: Found specification of procedure memchr_inv [2019-10-15 02:08:30,060 INFO L130 BoogieDeclarations]: Found specification of procedure PTR_ERR [2019-10-15 02:08:30,061 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2019-10-15 02:08:30,061 INFO L130 BoogieDeclarations]: Found specification of procedure lockdep_init_map [2019-10-15 02:08:30,061 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_trylock [2019-10-15 02:08:30,061 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_trylock_4 [2019-10-15 02:08:30,061 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2019-10-15 02:08:30,061 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_2 [2019-10-15 02:08:30,061 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_5 [2019-10-15 02:08:30,061 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_7 [2019-10-15 02:08:30,062 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock [2019-10-15 02:08:30,062 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_1 [2019-10-15 02:08:30,062 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_3 [2019-10-15 02:08:30,062 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_6 [2019-10-15 02:08:30,063 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_cred_guard_mutex_of_signal_struct [2019-10-15 02:08:30,063 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_cred_guard_mutex_of_signal_struct [2019-10-15 02:08:30,063 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_lock [2019-10-15 02:08:30,063 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_lock [2019-10-15 02:08:30,063 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_mutex_of_device [2019-10-15 02:08:30,063 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_trylock_mutex_of_device [2019-10-15 02:08:30,063 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_mutex_of_device [2019-10-15 02:08:30,064 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-15 02:08:30,064 INFO L130 BoogieDeclarations]: Found specification of procedure test_ti_thread_flag [2019-10-15 02:08:30,064 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2019-10-15 02:08:30,064 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock [2019-10-15 02:08:30,064 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_unlock [2019-10-15 02:08:30,064 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2019-10-15 02:08:30,064 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2019-10-15 02:08:30,064 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2019-10-15 02:08:30,065 INFO L130 BoogieDeclarations]: Found specification of procedure __init_waitqueue_head [2019-10-15 02:08:30,065 INFO L130 BoogieDeclarations]: Found specification of procedure init_completion [2019-10-15 02:08:30,065 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-15 02:08:30,065 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-15 02:08:30,065 INFO L130 BoogieDeclarations]: Found specification of procedure wait_for_completion [2019-10-15 02:08:30,065 INFO L130 BoogieDeclarations]: Found specification of procedure complete [2019-10-15 02:08:30,065 INFO L130 BoogieDeclarations]: Found specification of procedure init_timer_key [2019-10-15 02:08:30,065 INFO L130 BoogieDeclarations]: Found specification of procedure timer_pending [2019-10-15 02:08:30,066 INFO L130 BoogieDeclarations]: Found specification of procedure del_timer [2019-10-15 02:08:30,066 INFO L130 BoogieDeclarations]: Found specification of procedure add_timer [2019-10-15 02:08:30,066 INFO L130 BoogieDeclarations]: Found specification of procedure __init_work [2019-10-15 02:08:30,066 INFO L130 BoogieDeclarations]: Found specification of procedure schedule_work [2019-10-15 02:08:30,066 INFO L130 BoogieDeclarations]: Found specification of procedure cancel_work_sync [2019-10-15 02:08:30,066 INFO L130 BoogieDeclarations]: Found specification of procedure try_module_get [2019-10-15 02:08:30,066 INFO L130 BoogieDeclarations]: Found specification of procedure module_put [2019-10-15 02:08:30,067 INFO L130 BoogieDeclarations]: Found specification of procedure test_channelmap [2019-10-15 02:08:30,067 INFO L130 BoogieDeclarations]: Found specification of procedure set_channelmap [2019-10-15 02:08:30,067 INFO L130 BoogieDeclarations]: Found specification of procedure sock_create [2019-10-15 02:08:30,067 INFO L130 BoogieDeclarations]: Found specification of procedure sock_release [2019-10-15 02:08:30,067 INFO L130 BoogieDeclarations]: Found specification of procedure kernel_sendmsg [2019-10-15 02:08:30,067 INFO L130 BoogieDeclarations]: Found specification of procedure kernel_recvmsg [2019-10-15 02:08:30,067 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2019-10-15 02:08:30,067 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assume [2019-10-15 02:08:30,068 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-10-15 02:08:30,068 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2019-10-15 02:08:30,068 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2019-10-15 02:08:30,068 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-15 02:08:30,068 INFO L130 BoogieDeclarations]: Found specification of procedure __kmalloc [2019-10-15 02:08:30,068 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2019-10-15 02:08:30,068 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2019-10-15 02:08:30,068 INFO L130 BoogieDeclarations]: Found specification of procedure consume_skb [2019-10-15 02:08:30,069 INFO L130 BoogieDeclarations]: Found specification of procedure __alloc_skb [2019-10-15 02:08:30,069 INFO L130 BoogieDeclarations]: Found specification of procedure alloc_skb [2019-10-15 02:08:30,069 INFO L130 BoogieDeclarations]: Found specification of procedure skb_put [2019-10-15 02:08:30,069 INFO L130 BoogieDeclarations]: Found specification of procedure skb_reserve [2019-10-15 02:08:30,069 INFO L130 BoogieDeclarations]: Found specification of procedure skb_trim [2019-10-15 02:08:30,069 INFO L130 BoogieDeclarations]: Found specification of procedure schedule_timeout [2019-10-15 02:08:30,069 INFO L130 BoogieDeclarations]: Found specification of procedure wake_up_process [2019-10-15 02:08:30,070 INFO L130 BoogieDeclarations]: Found specification of procedure send_sig [2019-10-15 02:08:30,070 INFO L130 BoogieDeclarations]: Found specification of procedure allow_signal [2019-10-15 02:08:30,070 INFO L130 BoogieDeclarations]: Found specification of procedure test_tsk_thread_flag [2019-10-15 02:08:30,070 INFO L130 BoogieDeclarations]: Found specification of procedure signal_pending [2019-10-15 02:08:30,070 INFO L130 BoogieDeclarations]: Found specification of procedure mI_alloc_skb [2019-10-15 02:08:30,070 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy [2019-10-15 02:08:30,070 INFO L130 BoogieDeclarations]: Found specification of procedure _alloc_mISDN_skb [2019-10-15 02:08:30,070 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2019-10-15 02:08:30,071 INFO L130 BoogieDeclarations]: Found specification of procedure _queue_data [2019-10-15 02:08:30,071 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2019-10-15 02:08:30,071 INFO L130 BoogieDeclarations]: Found specification of procedure mISDN_register_device [2019-10-15 02:08:30,071 INFO L130 BoogieDeclarations]: Found specification of procedure mISDN_unregister_device [2019-10-15 02:08:30,071 INFO L130 BoogieDeclarations]: Found specification of procedure mISDN_initdchannel [2019-10-15 02:08:30,071 INFO L130 BoogieDeclarations]: Found specification of procedure mISDN_initbchannel [2019-10-15 02:08:30,071 INFO L130 BoogieDeclarations]: Found specification of procedure mISDN_freedchannel [2019-10-15 02:08:30,071 INFO L130 BoogieDeclarations]: Found specification of procedure mISDN_freebchannel [2019-10-15 02:08:30,072 INFO L130 BoogieDeclarations]: Found specification of procedure queue_ch_frame [2019-10-15 02:08:30,072 INFO L130 BoogieDeclarations]: Found specification of procedure recv_Dchannel [2019-10-15 02:08:30,073 INFO L130 BoogieDeclarations]: Found specification of procedure kthread_create_on_node [2019-10-15 02:08:30,073 INFO L130 BoogieDeclarations]: Found specification of procedure l1oip_law_to_4bit [2019-10-15 02:08:30,073 INFO L130 BoogieDeclarations]: Found specification of procedure l1oip_4bit_to_law [2019-10-15 02:08:30,074 INFO L130 BoogieDeclarations]: Found specification of procedure l1oip_alaw_to_ulaw [2019-10-15 02:08:30,074 INFO L130 BoogieDeclarations]: Found specification of procedure l1oip_ulaw_to_alaw [2019-10-15 02:08:30,074 INFO L130 BoogieDeclarations]: Found specification of procedure l1oip_4bit_free [2019-10-15 02:08:30,074 INFO L130 BoogieDeclarations]: Found specification of procedure l1oip_4bit_alloc [2019-10-15 02:08:30,074 INFO L130 BoogieDeclarations]: Found specification of procedure l1oip_socket_send [2019-10-15 02:08:30,074 INFO L130 BoogieDeclarations]: Found specification of procedure l1oip_socket_recv [2019-10-15 02:08:30,074 INFO L130 BoogieDeclarations]: Found specification of procedure l1oip_socket_parse [2019-10-15 02:08:30,075 INFO L130 BoogieDeclarations]: Found specification of procedure l1oip_socket_thread [2019-10-15 02:08:30,075 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~int~TO~int [2019-10-15 02:08:30,075 INFO L130 BoogieDeclarations]: Found specification of procedure l1oip_socket_close [2019-10-15 02:08:30,075 INFO L130 BoogieDeclarations]: Found specification of procedure l1oip_socket_open [2019-10-15 02:08:30,078 INFO L130 BoogieDeclarations]: Found specification of procedure l1oip_send_bh [2019-10-15 02:08:30,078 INFO L130 BoogieDeclarations]: Found specification of procedure l1oip_keepalive [2019-10-15 02:08:30,079 INFO L130 BoogieDeclarations]: Found specification of procedure l1oip_timeout [2019-10-15 02:08:30,079 INFO L130 BoogieDeclarations]: Found specification of procedure handle_dmsg [2019-10-15 02:08:30,079 INFO L130 BoogieDeclarations]: Found specification of procedure channel_dctrl [2019-10-15 02:08:30,079 INFO L130 BoogieDeclarations]: Found specification of procedure open_dchannel [2019-10-15 02:08:30,079 INFO L130 BoogieDeclarations]: Found specification of procedure open_bchannel [2019-10-15 02:08:30,079 INFO L130 BoogieDeclarations]: Found specification of procedure l1oip_dctrl [2019-10-15 02:08:30,079 INFO L130 BoogieDeclarations]: Found specification of procedure handle_bmsg [2019-10-15 02:08:30,080 INFO L130 BoogieDeclarations]: Found specification of procedure channel_bctrl [2019-10-15 02:08:30,080 INFO L130 BoogieDeclarations]: Found specification of procedure l1oip_bctrl [2019-10-15 02:08:30,080 INFO L130 BoogieDeclarations]: Found specification of procedure release_card [2019-10-15 02:08:30,080 INFO L130 BoogieDeclarations]: Found specification of procedure l1oip_cleanup [2019-10-15 02:08:30,080 INFO L130 BoogieDeclarations]: Found specification of procedure init_card [2019-10-15 02:08:30,080 INFO L130 BoogieDeclarations]: Found specification of procedure l1oip_init [2019-10-15 02:08:30,080 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize [2019-10-15 02:08:30,081 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2019-10-15 02:08:30,081 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-15 02:08:30,081 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_trylock_18 [2019-10-15 02:08:30,081 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_16 [2019-10-15 02:08:30,081 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_19 [2019-10-15 02:08:30,081 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_21 [2019-10-15 02:08:30,081 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_15 [2019-10-15 02:08:30,081 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_17 [2019-10-15 02:08:30,082 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_20 [2019-10-15 02:08:30,082 INFO L130 BoogieDeclarations]: Found specification of procedure vzalloc [2019-10-15 02:08:30,082 INFO L130 BoogieDeclarations]: Found specification of procedure vfree [2019-10-15 02:08:30,082 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2019-10-15 02:08:30,082 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_trap [2019-10-15 02:08:30,082 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_interruptible_cred_guard_mutex_of_signal_struct [2019-10-15 02:08:30,082 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_killable_cred_guard_mutex_of_signal_struct [2019-10-15 02:08:30,082 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_trylock_cred_guard_mutex_of_signal_struct [2019-10-15 02:08:30,083 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_dec_and_mutex_lock_cred_guard_mutex_of_signal_struct [2019-10-15 02:08:30,083 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_is_locked_cred_guard_mutex_of_signal_struct [2019-10-15 02:08:30,083 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_interruptible_lock [2019-10-15 02:08:30,083 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_killable_lock [2019-10-15 02:08:30,083 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_trylock_lock [2019-10-15 02:08:30,083 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_dec_and_mutex_lock_lock [2019-10-15 02:08:30,083 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_is_locked_lock [2019-10-15 02:08:30,083 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_interruptible_mutex_of_device [2019-10-15 02:08:30,084 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_killable_mutex_of_device [2019-10-15 02:08:30,084 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_dec_and_mutex_lock_mutex_of_device [2019-10-15 02:08:30,084 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_is_locked_mutex_of_device [2019-10-15 02:08:30,084 INFO L130 BoogieDeclarations]: Found specification of procedure external_alloc [2019-10-15 02:08:30,084 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_bool [2019-10-15 02:08:30,084 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_long [2019-10-15 02:08:30,084 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_pointer [2019-10-15 02:08:30,084 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-15 02:08:30,085 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-15 02:08:30,085 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-15 02:08:30,085 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2019-10-15 02:08:30,085 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-15 02:08:30,085 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2019-10-15 02:08:30,085 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2019-10-15 02:08:30,085 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2019-10-15 02:08:30,087 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2019-10-15 02:08:52,908 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-15 02:08:52,909 INFO L284 CfgBuilder]: Removed 0 assume(true) statements. [2019-10-15 02:08:52,911 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 02:08:52 BoogieIcfgContainer [2019-10-15 02:08:52,911 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-15 02:08:52,912 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-15 02:08:52,912 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-15 02:08:52,915 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-15 02:08:52,916 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.10 02:08:26" (1/3) ... [2019-10-15 02:08:52,916 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5d84e0c3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 02:08:52, skipping insertion in model container [2019-10-15 02:08:52,917 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 02:08:29" (2/3) ... [2019-10-15 02:08:52,917 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5d84e0c3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 02:08:52, skipping insertion in model container [2019-10-15 02:08:52,917 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 02:08:52" (3/3) ... [2019-10-15 02:08:52,919 INFO L109 eAbstractionObserver]: Analyzing ICFG 32_7a_cilled_linux-3.8-rc1-drivers--isdn--mISDN--l1oip.ko-main.cil.out.i [2019-10-15 02:08:52,929 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-15 02:08:52,939 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-15 02:08:52,951 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-15 02:08:52,982 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-15 02:08:52,983 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-15 02:08:52,983 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-15 02:08:52,983 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-15 02:08:52,983 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-15 02:08:52,983 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-15 02:08:52,983 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-15 02:08:52,983 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-15 02:08:53,019 INFO L276 IsEmpty]: Start isEmpty. Operand 814 states. [2019-10-15 02:08:53,027 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2019-10-15 02:08:53,027 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 02:08:53,029 INFO L380 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] [2019-10-15 02:08:53,031 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 02:08:53,036 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 02:08:53,037 INFO L82 PathProgramCache]: Analyzing trace with hash -2025726797, now seen corresponding path program 1 times [2019-10-15 02:08:53,046 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 02:08:53,046 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [719967624] [2019-10-15 02:08:53,047 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 02:08:53,047 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 02:08:53,047 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 02:08:53,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 02:08:54,025 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-15 02:08:54,030 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [719967624] [2019-10-15 02:08:54,031 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 02:08:54,031 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-15 02:08:54,032 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [193880948] [2019-10-15 02:08:54,037 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-15 02:08:54,037 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 02:08:54,051 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-15 02:08:54,052 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 02:08:54,055 INFO L87 Difference]: Start difference. First operand 814 states. Second operand 3 states. [2019-10-15 02:08:56,857 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 02:08:56,857 INFO L93 Difference]: Finished difference Result 1346 states and 1724 transitions. [2019-10-15 02:08:56,858 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-15 02:08:56,859 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 29 [2019-10-15 02:08:56,860 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 02:08:56,885 INFO L225 Difference]: With dead ends: 1346 [2019-10-15 02:08:56,885 INFO L226 Difference]: Without dead ends: 826 [2019-10-15 02:08:56,894 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 02:08:56,916 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 826 states. [2019-10-15 02:08:57,017 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 826 to 826. [2019-10-15 02:08:57,018 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 826 states. [2019-10-15 02:08:57,026 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 826 states to 826 states and 1053 transitions. [2019-10-15 02:08:57,028 INFO L78 Accepts]: Start accepts. Automaton has 826 states and 1053 transitions. Word has length 29 [2019-10-15 02:08:57,029 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 02:08:57,029 INFO L462 AbstractCegarLoop]: Abstraction has 826 states and 1053 transitions. [2019-10-15 02:08:57,029 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-15 02:08:57,029 INFO L276 IsEmpty]: Start isEmpty. Operand 826 states and 1053 transitions. [2019-10-15 02:08:57,031 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2019-10-15 02:08:57,032 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 02:08:57,032 INFO L380 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] [2019-10-15 02:08:57,032 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 02:08:57,032 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 02:08:57,033 INFO L82 PathProgramCache]: Analyzing trace with hash 2018093700, now seen corresponding path program 1 times [2019-10-15 02:08:57,033 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 02:08:57,033 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1635452825] [2019-10-15 02:08:57,033 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 02:08:57,034 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 02:08:57,034 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 02:08:57,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 02:08:57,450 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-15 02:08:57,450 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1635452825] [2019-10-15 02:08:57,450 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 02:08:57,451 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-10-15 02:08:57,451 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [641177615] [2019-10-15 02:08:57,453 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-15 02:08:57,453 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 02:08:57,453 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-15 02:08:57,453 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-10-15 02:08:57,454 INFO L87 Difference]: Start difference. First operand 826 states and 1053 transitions. Second operand 5 states. [2019-10-15 02:08:57,541 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 02:08:57,541 INFO L93 Difference]: Finished difference Result 1642 states and 2095 transitions. [2019-10-15 02:08:57,542 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-10-15 02:08:57,542 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 42 [2019-10-15 02:08:57,542 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 02:08:57,551 INFO L225 Difference]: With dead ends: 1642 [2019-10-15 02:08:57,551 INFO L226 Difference]: Without dead ends: 832 [2019-10-15 02:08:57,555 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-10-15 02:08:57,557 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 832 states. [2019-10-15 02:08:57,608 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 832 to 830. [2019-10-15 02:08:57,609 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 830 states. [2019-10-15 02:08:57,616 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 830 states to 830 states and 1057 transitions. [2019-10-15 02:08:57,617 INFO L78 Accepts]: Start accepts. Automaton has 830 states and 1057 transitions. Word has length 42 [2019-10-15 02:08:57,617 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 02:08:57,618 INFO L462 AbstractCegarLoop]: Abstraction has 830 states and 1057 transitions. [2019-10-15 02:08:57,618 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-15 02:08:57,618 INFO L276 IsEmpty]: Start isEmpty. Operand 830 states and 1057 transitions. [2019-10-15 02:08:57,619 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2019-10-15 02:08:57,620 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 02:08:57,620 INFO L380 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] [2019-10-15 02:08:57,620 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 02:08:57,620 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 02:08:57,620 INFO L82 PathProgramCache]: Analyzing trace with hash 1139679425, now seen corresponding path program 1 times [2019-10-15 02:08:57,621 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 02:08:57,621 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1649572132] [2019-10-15 02:08:57,621 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 02:08:57,621 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 02:08:57,621 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 02:08:57,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 02:08:58,776 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-15 02:08:58,776 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1649572132] [2019-10-15 02:08:58,776 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 02:08:58,777 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-10-15 02:08:58,777 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1131118273] [2019-10-15 02:08:58,778 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-15 02:08:58,778 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 02:08:58,778 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-15 02:08:58,778 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-10-15 02:08:58,778 INFO L87 Difference]: Start difference. First operand 830 states and 1057 transitions. Second operand 5 states. [2019-10-15 02:08:59,545 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 02:08:59,545 INFO L93 Difference]: Finished difference Result 852 states and 1082 transitions. [2019-10-15 02:08:59,546 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-10-15 02:08:59,546 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 44 [2019-10-15 02:08:59,546 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 02:08:59,551 INFO L225 Difference]: With dead ends: 852 [2019-10-15 02:08:59,551 INFO L226 Difference]: Without dead ends: 843 [2019-10-15 02:08:59,552 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2019-10-15 02:08:59,554 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 843 states. [2019-10-15 02:08:59,598 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 843 to 834. [2019-10-15 02:08:59,598 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 834 states. [2019-10-15 02:08:59,605 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 834 states to 834 states and 1061 transitions. [2019-10-15 02:08:59,605 INFO L78 Accepts]: Start accepts. Automaton has 834 states and 1061 transitions. Word has length 44 [2019-10-15 02:08:59,606 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 02:08:59,606 INFO L462 AbstractCegarLoop]: Abstraction has 834 states and 1061 transitions. [2019-10-15 02:08:59,606 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-15 02:08:59,606 INFO L276 IsEmpty]: Start isEmpty. Operand 834 states and 1061 transitions. [2019-10-15 02:08:59,616 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2019-10-15 02:08:59,616 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 02:08:59,617 INFO L380 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 02:08:59,617 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 02:08:59,617 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 02:08:59,618 INFO L82 PathProgramCache]: Analyzing trace with hash -1389811069, now seen corresponding path program 1 times [2019-10-15 02:08:59,618 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 02:08:59,618 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [379274336] [2019-10-15 02:08:59,618 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 02:08:59,618 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 02:08:59,618 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 02:08:59,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 02:08:59,940 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2019-10-15 02:08:59,941 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [379274336] [2019-10-15 02:08:59,941 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 02:08:59,941 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-15 02:08:59,941 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1684587667] [2019-10-15 02:08:59,942 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-15 02:08:59,942 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 02:08:59,942 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-15 02:08:59,943 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 02:08:59,943 INFO L87 Difference]: Start difference. First operand 834 states and 1061 transitions. Second operand 3 states.