/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SequenceOfStatements --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=WIDESTAMONGSMALL --traceabstraction.additional.smt.options tolerance=0.4 --traceabstraction.additional.smt.options log-additional-information=true --traceabstraction.additional.smt.options unknown-allowed=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-64bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--isdn--mISDN--l1oip.ko-main.cil.out.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-adbd35c [2020-10-14 11:53:49,466 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-14 11:53:49,469 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-14 11:53:49,493 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-14 11:53:49,493 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-14 11:53:49,494 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-14 11:53:49,496 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-14 11:53:49,497 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-14 11:53:49,499 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-14 11:53:49,500 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-14 11:53:49,501 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-14 11:53:49,502 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-14 11:53:49,502 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-14 11:53:49,503 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-14 11:53:49,504 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-14 11:53:49,506 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-14 11:53:49,506 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-14 11:53:49,507 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-14 11:53:49,509 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-14 11:53:49,511 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-14 11:53:49,513 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-14 11:53:49,514 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-14 11:53:49,515 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-14 11:53:49,516 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-14 11:53:49,519 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-14 11:53:49,519 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-14 11:53:49,520 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-14 11:53:49,521 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-14 11:53:49,521 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-14 11:53:49,522 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-14 11:53:49,522 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-14 11:53:49,523 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-14 11:53:49,524 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-14 11:53:49,525 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-14 11:53:49,526 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-14 11:53:49,526 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-14 11:53:49,527 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-14 11:53:49,527 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-14 11:53:49,527 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-14 11:53:49,528 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-14 11:53:49,529 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-14 11:53:49,529 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-64bit-Automizer_Default.epf [2020-10-14 11:53:49,563 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-14 11:53:49,563 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-14 11:53:49,565 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-14 11:53:49,565 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-14 11:53:49,565 INFO L138 SettingsManager]: * Use SBE=true [2020-10-14 11:53:49,565 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-14 11:53:49,566 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-14 11:53:49,566 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-14 11:53:49,566 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-14 11:53:49,566 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-14 11:53:49,566 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-14 11:53:49,567 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-14 11:53:49,567 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-14 11:53:49,568 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-14 11:53:49,568 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-14 11:53:49,568 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-14 11:53:49,568 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-14 11:53:49,568 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-14 11:53:49,569 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-14 11:53:49,569 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-14 11:53:49,569 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-14 11:53:49,570 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-14 11:53:49,570 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-14 11:53:49,570 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-14 11:53:49,570 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-14 11:53:49,570 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-14 11:53:49,571 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-10-14 11:53:49,571 INFO L138 SettingsManager]: * To the following directory=dump/ Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true;unknown-allowed=true; [2020-10-14 11:53:49,844 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-14 11:53:49,856 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-14 11:53:49,859 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-14 11:53:49,861 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-14 11:53:49,861 INFO L275 PluginConnector]: CDTParser initialized [2020-10-14 11:53:49,862 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--isdn--mISDN--l1oip.ko-main.cil.out.i [2020-10-14 11:53:49,937 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/7dd903916/7f1a4c72f5c843abad579247dd5abc8c/FLAG11717dcfe [2020-10-14 11:53:50,723 INFO L306 CDTParser]: Found 1 translation units. [2020-10-14 11:53:50,723 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--isdn--mISDN--l1oip.ko-main.cil.out.i [2020-10-14 11:53:50,770 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/7dd903916/7f1a4c72f5c843abad579247dd5abc8c/FLAG11717dcfe [2020-10-14 11:53:51,244 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/7dd903916/7f1a4c72f5c843abad579247dd5abc8c [2020-10-14 11:53:51,252 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-14 11:53:51,254 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-14 11:53:51,255 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-14 11:53:51,255 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-14 11:53:51,259 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-14 11:53:51,260 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 11:53:51" (1/1) ... [2020-10-14 11:53:51,263 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@e243359 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:53:51, skipping insertion in model container [2020-10-14 11:53:51,264 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 11:53:51" (1/1) ... [2020-10-14 11:53:51,274 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-14 11:53:51,388 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-14 11:53:53,208 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-14 11:53:53,291 INFO L203 MainTranslator]: Completed pre-run [2020-10-14 11:53:53,554 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-14 11:53:53,906 INFO L208 MainTranslator]: Completed translation [2020-10-14 11:53:53,909 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:53:53 WrapperNode [2020-10-14 11:53:53,909 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-14 11:53:53,910 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-14 11:53:53,910 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-14 11:53:53,910 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-14 11:53:53,929 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:53:53" (1/1) ... [2020-10-14 11:53:53,930 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:53:53" (1/1) ... [2020-10-14 11:53:54,061 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:53:53" (1/1) ... [2020-10-14 11:53:54,062 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:53:53" (1/1) ... [2020-10-14 11:53:54,244 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:53:53" (1/1) ... [2020-10-14 11:53:54,280 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:53:53" (1/1) ... [2020-10-14 11:53:54,313 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:53:53" (1/1) ... [2020-10-14 11:53:54,344 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-14 11:53:54,344 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-14 11:53:54,345 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-14 11:53:54,345 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-14 11:53:54,346 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:53:53" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-14 11:53:54,422 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-14 11:53:54,422 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-14 11:53:54,422 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2020-10-14 11:53:54,423 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~int~TO~int [2020-10-14 11:53:54,423 INFO L138 BoogieDeclarations]: Found implementation of procedure test_and_set_bit [2020-10-14 11:53:54,423 INFO L138 BoogieDeclarations]: Found implementation of procedure test_and_clear_bit [2020-10-14 11:53:54,424 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2020-10-14 11:53:54,424 INFO L138 BoogieDeclarations]: Found implementation of procedure variable_test_bit [2020-10-14 11:53:54,424 INFO L138 BoogieDeclarations]: Found implementation of procedure __arch_swab32 [2020-10-14 11:53:54,425 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab16 [2020-10-14 11:53:54,425 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab32 [2020-10-14 11:53:54,426 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2020-10-14 11:53:54,426 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add [2020-10-14 11:53:54,426 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add_tail [2020-10-14 11:53:54,426 INFO L138 BoogieDeclarations]: Found implementation of procedure get_current [2020-10-14 11:53:54,426 INFO L138 BoogieDeclarations]: Found implementation of procedure PTR_ERR [2020-10-14 11:53:54,427 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2020-10-14 11:53:54,429 INFO L138 BoogieDeclarations]: Found implementation of procedure test_ti_thread_flag [2020-10-14 11:53:54,429 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2020-10-14 11:53:54,429 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2020-10-14 11:53:54,430 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2020-10-14 11:53:54,430 INFO L138 BoogieDeclarations]: Found implementation of procedure init_completion [2020-10-14 11:53:54,430 INFO L138 BoogieDeclarations]: Found implementation of procedure timer_pending [2020-10-14 11:53:54,430 INFO L138 BoogieDeclarations]: Found implementation of procedure test_channelmap [2020-10-14 11:53:54,430 INFO L138 BoogieDeclarations]: Found implementation of procedure set_channelmap [2020-10-14 11:53:54,431 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-10-14 11:53:54,431 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2020-10-14 11:53:54,431 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2020-10-14 11:53:54,431 INFO L138 BoogieDeclarations]: Found implementation of procedure __kmalloc [2020-10-14 11:53:54,431 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2020-10-14 11:53:54,431 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2020-10-14 11:53:54,431 INFO L138 BoogieDeclarations]: Found implementation of procedure alloc_skb [2020-10-14 11:53:54,432 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_reserve [2020-10-14 11:53:54,432 INFO L138 BoogieDeclarations]: Found implementation of procedure test_tsk_thread_flag [2020-10-14 11:53:54,432 INFO L138 BoogieDeclarations]: Found implementation of procedure signal_pending [2020-10-14 11:53:54,433 INFO L138 BoogieDeclarations]: Found implementation of procedure mI_alloc_skb [2020-10-14 11:53:54,433 INFO L138 BoogieDeclarations]: Found implementation of procedure _alloc_mISDN_skb [2020-10-14 11:53:54,433 INFO L138 BoogieDeclarations]: Found implementation of procedure _queue_data [2020-10-14 11:53:54,433 INFO L138 BoogieDeclarations]: Found implementation of procedure l1oip_socket_send [2020-10-14 11:53:54,433 INFO L138 BoogieDeclarations]: Found implementation of procedure l1oip_socket_recv [2020-10-14 11:53:54,433 INFO L138 BoogieDeclarations]: Found implementation of procedure l1oip_socket_parse [2020-10-14 11:53:54,434 INFO L138 BoogieDeclarations]: Found implementation of procedure l1oip_socket_thread [2020-10-14 11:53:54,434 INFO L138 BoogieDeclarations]: Found implementation of procedure l1oip_socket_close [2020-10-14 11:53:54,434 INFO L138 BoogieDeclarations]: Found implementation of procedure l1oip_socket_open [2020-10-14 11:53:54,434 INFO L138 BoogieDeclarations]: Found implementation of procedure l1oip_send_bh [2020-10-14 11:53:54,435 INFO L138 BoogieDeclarations]: Found implementation of procedure l1oip_keepalive [2020-10-14 11:53:54,435 INFO L138 BoogieDeclarations]: Found implementation of procedure l1oip_timeout [2020-10-14 11:53:54,435 INFO L138 BoogieDeclarations]: Found implementation of procedure handle_dmsg [2020-10-14 11:53:54,435 INFO L138 BoogieDeclarations]: Found implementation of procedure channel_dctrl [2020-10-14 11:53:54,436 INFO L138 BoogieDeclarations]: Found implementation of procedure open_dchannel [2020-10-14 11:53:54,436 INFO L138 BoogieDeclarations]: Found implementation of procedure open_bchannel [2020-10-14 11:53:54,437 INFO L138 BoogieDeclarations]: Found implementation of procedure l1oip_dctrl [2020-10-14 11:53:54,437 INFO L138 BoogieDeclarations]: Found implementation of procedure handle_bmsg [2020-10-14 11:53:54,437 INFO L138 BoogieDeclarations]: Found implementation of procedure channel_bctrl [2020-10-14 11:53:54,437 INFO L138 BoogieDeclarations]: Found implementation of procedure l1oip_bctrl [2020-10-14 11:53:54,438 INFO L138 BoogieDeclarations]: Found implementation of procedure release_card [2020-10-14 11:53:54,438 INFO L138 BoogieDeclarations]: Found implementation of procedure l1oip_cleanup [2020-10-14 11:53:54,438 INFO L138 BoogieDeclarations]: Found implementation of procedure init_card [2020-10-14 11:53:54,438 INFO L138 BoogieDeclarations]: Found implementation of procedure l1oip_init [2020-10-14 11:53:54,438 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-14 11:53:54,438 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_1 [2020-10-14 11:53:54,438 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_2 [2020-10-14 11:53:54,439 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_3 [2020-10-14 11:53:54,439 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_trylock_4 [2020-10-14 11:53:54,439 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_5 [2020-10-14 11:53:54,439 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_6 [2020-10-14 11:53:54,439 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_7 [2020-10-14 11:53:54,439 INFO L138 BoogieDeclarations]: Found implementation of procedure l1oip_law_to_4bit [2020-10-14 11:53:54,439 INFO L138 BoogieDeclarations]: Found implementation of procedure l1oip_4bit_to_law [2020-10-14 11:53:54,440 INFO L138 BoogieDeclarations]: Found implementation of procedure l1oip_alaw_to_ulaw [2020-10-14 11:53:54,440 INFO L138 BoogieDeclarations]: Found implementation of procedure l1oip_ulaw_to_alaw [2020-10-14 11:53:54,441 INFO L138 BoogieDeclarations]: Found implementation of procedure l1oip_4bit_free [2020-10-14 11:53:54,441 INFO L138 BoogieDeclarations]: Found implementation of procedure l1oip_4bit_alloc [2020-10-14 11:53:54,442 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_15 [2020-10-14 11:53:54,442 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_16 [2020-10-14 11:53:54,443 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_17 [2020-10-14 11:53:54,443 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_trylock_18 [2020-10-14 11:53:54,443 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_19 [2020-10-14 11:53:54,443 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_20 [2020-10-14 11:53:54,443 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_21 [2020-10-14 11:53:54,443 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2020-10-14 11:53:54,443 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2020-10-14 11:53:54,444 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_trap [2020-10-14 11:53:54,444 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_interruptible_cred_guard_mutex_of_signal_struct [2020-10-14 11:53:54,445 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_killable_cred_guard_mutex_of_signal_struct [2020-10-14 11:53:54,445 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_cred_guard_mutex_of_signal_struct [2020-10-14 11:53:54,445 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_trylock_cred_guard_mutex_of_signal_struct [2020-10-14 11:53:54,445 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_dec_and_mutex_lock_cred_guard_mutex_of_signal_struct [2020-10-14 11:53:54,445 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_is_locked_cred_guard_mutex_of_signal_struct [2020-10-14 11:53:54,445 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_cred_guard_mutex_of_signal_struct [2020-10-14 11:53:54,446 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_interruptible_lock [2020-10-14 11:53:54,446 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_killable_lock [2020-10-14 11:53:54,446 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_lock [2020-10-14 11:53:54,446 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_trylock_lock [2020-10-14 11:53:54,446 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_dec_and_mutex_lock_lock [2020-10-14 11:53:54,446 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_is_locked_lock [2020-10-14 11:53:54,446 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_lock [2020-10-14 11:53:54,447 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_interruptible_mutex_of_device [2020-10-14 11:53:54,447 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_killable_mutex_of_device [2020-10-14 11:53:54,447 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_mutex_of_device [2020-10-14 11:53:54,447 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_trylock_mutex_of_device [2020-10-14 11:53:54,447 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_dec_and_mutex_lock_mutex_of_device [2020-10-14 11:53:54,447 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_is_locked_mutex_of_device [2020-10-14 11:53:54,448 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_mutex_of_device [2020-10-14 11:53:54,448 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize [2020-10-14 11:53:54,448 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2020-10-14 11:53:54,448 INFO L138 BoogieDeclarations]: Found implementation of procedure __alloc_skb [2020-10-14 11:53:54,448 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_waitqueue_head [2020-10-14 11:53:54,448 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_work [2020-10-14 11:53:54,449 INFO L138 BoogieDeclarations]: Found implementation of procedure __list_add [2020-10-14 11:53:54,449 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2020-10-14 11:53:54,449 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock [2020-10-14 11:53:54,449 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_unlock [2020-10-14 11:53:54,449 INFO L138 BoogieDeclarations]: Found implementation of procedure add_timer [2020-10-14 11:53:54,449 INFO L138 BoogieDeclarations]: Found implementation of procedure allow_signal [2020-10-14 11:53:54,449 INFO L138 BoogieDeclarations]: Found implementation of procedure cancel_work_sync [2020-10-14 11:53:54,450 INFO L138 BoogieDeclarations]: Found implementation of procedure complete [2020-10-14 11:53:54,450 INFO L138 BoogieDeclarations]: Found implementation of procedure consume_skb [2020-10-14 11:53:54,450 INFO L138 BoogieDeclarations]: Found implementation of procedure del_timer [2020-10-14 11:53:54,450 INFO L138 BoogieDeclarations]: Found implementation of procedure init_timer_key [2020-10-14 11:53:54,450 INFO L138 BoogieDeclarations]: Found implementation of procedure kernel_recvmsg [2020-10-14 11:53:54,451 INFO L138 BoogieDeclarations]: Found implementation of procedure kernel_sendmsg [2020-10-14 11:53:54,451 INFO L138 BoogieDeclarations]: Found implementation of procedure kthread_create_on_node [2020-10-14 11:53:54,451 INFO L138 BoogieDeclarations]: Found implementation of procedure list_del [2020-10-14 11:53:54,451 INFO L138 BoogieDeclarations]: Found implementation of procedure lockdep_init_map [2020-10-14 11:53:54,452 INFO L138 BoogieDeclarations]: Found implementation of procedure mISDN_freebchannel [2020-10-14 11:53:54,453 INFO L138 BoogieDeclarations]: Found implementation of procedure mISDN_freedchannel [2020-10-14 11:53:54,453 INFO L138 BoogieDeclarations]: Found implementation of procedure mISDN_initbchannel [2020-10-14 11:53:54,457 INFO L138 BoogieDeclarations]: Found implementation of procedure mISDN_initdchannel [2020-10-14 11:53:54,457 INFO L138 BoogieDeclarations]: Found implementation of procedure mISDN_register_device [2020-10-14 11:53:54,457 INFO L138 BoogieDeclarations]: Found implementation of procedure mISDN_unregister_device [2020-10-14 11:53:54,457 INFO L138 BoogieDeclarations]: Found implementation of procedure memchr_inv [2020-10-14 11:53:54,458 INFO L138 BoogieDeclarations]: Found implementation of procedure module_put [2020-10-14 11:53:54,458 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock [2020-10-14 11:53:54,458 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_trylock [2020-10-14 11:53:54,458 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2020-10-14 11:53:54,459 INFO L138 BoogieDeclarations]: Found implementation of procedure printk [2020-10-14 11:53:54,459 INFO L138 BoogieDeclarations]: Found implementation of procedure queue_ch_frame [2020-10-14 11:53:54,459 INFO L138 BoogieDeclarations]: Found implementation of procedure recv_Dchannel [2020-10-14 11:53:54,459 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule_timeout [2020-10-14 11:53:54,459 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule_work [2020-10-14 11:53:54,460 INFO L138 BoogieDeclarations]: Found implementation of procedure send_sig [2020-10-14 11:53:54,460 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_put [2020-10-14 11:53:54,460 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_trim [2020-10-14 11:53:54,461 INFO L138 BoogieDeclarations]: Found implementation of procedure sock_create [2020-10-14 11:53:54,468 INFO L138 BoogieDeclarations]: Found implementation of procedure sock_release [2020-10-14 11:53:54,468 INFO L138 BoogieDeclarations]: Found implementation of procedure try_module_get [2020-10-14 11:53:54,468 INFO L138 BoogieDeclarations]: Found implementation of procedure vfree [2020-10-14 11:53:54,468 INFO L138 BoogieDeclarations]: Found implementation of procedure vzalloc [2020-10-14 11:53:54,469 INFO L138 BoogieDeclarations]: Found implementation of procedure wait_for_completion [2020-10-14 11:53:54,469 INFO L138 BoogieDeclarations]: Found implementation of procedure wake_up_process [2020-10-14 11:53:54,469 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2020-10-14 11:53:54,469 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2020-10-14 11:53:54,469 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-10-14 11:53:54,469 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2020-10-14 11:53:54,469 INFO L130 BoogieDeclarations]: Found specification of procedure test_and_set_bit [2020-10-14 11:53:54,470 INFO L130 BoogieDeclarations]: Found specification of procedure test_and_clear_bit [2020-10-14 11:53:54,470 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2020-10-14 11:53:54,470 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-14 11:53:54,471 INFO L130 BoogieDeclarations]: Found specification of procedure variable_test_bit [2020-10-14 11:53:54,472 INFO L130 BoogieDeclarations]: Found specification of procedure __arch_swab32 [2020-10-14 11:53:54,472 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab16 [2020-10-14 11:53:54,472 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab32 [2020-10-14 11:53:54,472 INFO L130 BoogieDeclarations]: Found specification of procedure printk [2020-10-14 11:53:54,472 INFO L130 BoogieDeclarations]: Found specification of procedure sprintf [2020-10-14 11:53:54,472 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2020-10-14 11:53:54,472 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-10-14 11:53:54,472 INFO L130 BoogieDeclarations]: Found specification of procedure __list_add [2020-10-14 11:53:54,473 INFO L130 BoogieDeclarations]: Found specification of procedure list_add [2020-10-14 11:53:54,473 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-10-14 11:53:54,473 INFO L130 BoogieDeclarations]: Found specification of procedure list_add_tail [2020-10-14 11:53:54,473 INFO L130 BoogieDeclarations]: Found specification of procedure list_del [2020-10-14 11:53:54,473 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2020-10-14 11:53:54,473 INFO L130 BoogieDeclarations]: Found specification of procedure get_current [2020-10-14 11:53:54,473 INFO L130 BoogieDeclarations]: Found specification of procedure memchr_inv [2020-10-14 11:53:54,473 INFO L130 BoogieDeclarations]: Found specification of procedure PTR_ERR [2020-10-14 11:53:54,474 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2020-10-14 11:53:54,474 INFO L130 BoogieDeclarations]: Found specification of procedure lockdep_init_map [2020-10-14 11:53:54,474 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_trylock [2020-10-14 11:53:54,474 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_trylock_4 [2020-10-14 11:53:54,474 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2020-10-14 11:53:54,474 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_2 [2020-10-14 11:53:54,474 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_5 [2020-10-14 11:53:54,474 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_7 [2020-10-14 11:53:54,475 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock [2020-10-14 11:53:54,475 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_1 [2020-10-14 11:53:54,475 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_3 [2020-10-14 11:53:54,475 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_6 [2020-10-14 11:53:54,475 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_cred_guard_mutex_of_signal_struct [2020-10-14 11:53:54,475 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_cred_guard_mutex_of_signal_struct [2020-10-14 11:53:54,475 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_lock [2020-10-14 11:53:54,476 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_lock [2020-10-14 11:53:54,476 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_mutex_of_device [2020-10-14 11:53:54,476 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_trylock_mutex_of_device [2020-10-14 11:53:54,477 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_mutex_of_device [2020-10-14 11:53:54,477 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-14 11:53:54,477 INFO L130 BoogieDeclarations]: Found specification of procedure test_ti_thread_flag [2020-10-14 11:53:54,477 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2020-10-14 11:53:54,477 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock [2020-10-14 11:53:54,478 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_unlock [2020-10-14 11:53:54,478 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2020-10-14 11:53:54,478 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2020-10-14 11:53:54,478 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2020-10-14 11:53:54,478 INFO L130 BoogieDeclarations]: Found specification of procedure __init_waitqueue_head [2020-10-14 11:53:54,478 INFO L130 BoogieDeclarations]: Found specification of procedure init_completion [2020-10-14 11:53:54,478 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-14 11:53:54,479 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-14 11:53:54,479 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-14 11:53:54,479 INFO L130 BoogieDeclarations]: Found specification of procedure wait_for_completion [2020-10-14 11:53:54,479 INFO L130 BoogieDeclarations]: Found specification of procedure complete [2020-10-14 11:53:54,479 INFO L130 BoogieDeclarations]: Found specification of procedure init_timer_key [2020-10-14 11:53:54,479 INFO L130 BoogieDeclarations]: Found specification of procedure timer_pending [2020-10-14 11:53:54,479 INFO L130 BoogieDeclarations]: Found specification of procedure del_timer [2020-10-14 11:53:54,479 INFO L130 BoogieDeclarations]: Found specification of procedure add_timer [2020-10-14 11:53:54,480 INFO L130 BoogieDeclarations]: Found specification of procedure __init_work [2020-10-14 11:53:54,480 INFO L130 BoogieDeclarations]: Found specification of procedure schedule_work [2020-10-14 11:53:54,480 INFO L130 BoogieDeclarations]: Found specification of procedure cancel_work_sync [2020-10-14 11:53:54,480 INFO L130 BoogieDeclarations]: Found specification of procedure try_module_get [2020-10-14 11:53:54,480 INFO L130 BoogieDeclarations]: Found specification of procedure module_put [2020-10-14 11:53:54,480 INFO L130 BoogieDeclarations]: Found specification of procedure test_channelmap [2020-10-14 11:53:54,480 INFO L130 BoogieDeclarations]: Found specification of procedure set_channelmap [2020-10-14 11:53:54,481 INFO L130 BoogieDeclarations]: Found specification of procedure sock_create [2020-10-14 11:53:54,481 INFO L130 BoogieDeclarations]: Found specification of procedure sock_release [2020-10-14 11:53:54,481 INFO L130 BoogieDeclarations]: Found specification of procedure kernel_sendmsg [2020-10-14 11:53:54,481 INFO L130 BoogieDeclarations]: Found specification of procedure kernel_recvmsg [2020-10-14 11:53:54,481 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2020-10-14 11:53:54,481 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-14 11:53:54,481 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-10-14 11:53:54,481 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-10-14 11:53:54,482 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2020-10-14 11:53:54,482 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2020-10-14 11:53:54,482 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-10-14 11:53:54,482 INFO L130 BoogieDeclarations]: Found specification of procedure __kmalloc [2020-10-14 11:53:54,482 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2020-10-14 11:53:54,482 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2020-10-14 11:53:54,482 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2020-10-14 11:53:54,482 INFO L130 BoogieDeclarations]: Found specification of procedure consume_skb [2020-10-14 11:53:54,483 INFO L130 BoogieDeclarations]: Found specification of procedure __alloc_skb [2020-10-14 11:53:54,483 INFO L130 BoogieDeclarations]: Found specification of procedure alloc_skb [2020-10-14 11:53:54,483 INFO L130 BoogieDeclarations]: Found specification of procedure skb_put [2020-10-14 11:53:54,483 INFO L130 BoogieDeclarations]: Found specification of procedure skb_reserve [2020-10-14 11:53:54,483 INFO L130 BoogieDeclarations]: Found specification of procedure skb_trim [2020-10-14 11:53:54,483 INFO L130 BoogieDeclarations]: Found specification of procedure schedule_timeout [2020-10-14 11:53:54,483 INFO L130 BoogieDeclarations]: Found specification of procedure wake_up_process [2020-10-14 11:53:54,483 INFO L130 BoogieDeclarations]: Found specification of procedure send_sig [2020-10-14 11:53:54,483 INFO L130 BoogieDeclarations]: Found specification of procedure allow_signal [2020-10-14 11:53:54,484 INFO L130 BoogieDeclarations]: Found specification of procedure test_tsk_thread_flag [2020-10-14 11:53:54,484 INFO L130 BoogieDeclarations]: Found specification of procedure signal_pending [2020-10-14 11:53:54,484 INFO L130 BoogieDeclarations]: Found specification of procedure mI_alloc_skb [2020-10-14 11:53:54,484 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy [2020-10-14 11:53:54,484 INFO L130 BoogieDeclarations]: Found specification of procedure _alloc_mISDN_skb [2020-10-14 11:53:54,484 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2020-10-14 11:53:54,484 INFO L130 BoogieDeclarations]: Found specification of procedure _queue_data [2020-10-14 11:53:54,485 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2020-10-14 11:53:54,486 INFO L130 BoogieDeclarations]: Found specification of procedure mISDN_register_device [2020-10-14 11:53:54,490 INFO L130 BoogieDeclarations]: Found specification of procedure mISDN_unregister_device [2020-10-14 11:53:54,490 INFO L130 BoogieDeclarations]: Found specification of procedure mISDN_initdchannel [2020-10-14 11:53:54,491 INFO L130 BoogieDeclarations]: Found specification of procedure mISDN_initbchannel [2020-10-14 11:53:54,491 INFO L130 BoogieDeclarations]: Found specification of procedure mISDN_freedchannel [2020-10-14 11:53:54,491 INFO L130 BoogieDeclarations]: Found specification of procedure mISDN_freebchannel [2020-10-14 11:53:54,491 INFO L130 BoogieDeclarations]: Found specification of procedure queue_ch_frame [2020-10-14 11:53:54,491 INFO L130 BoogieDeclarations]: Found specification of procedure recv_Dchannel [2020-10-14 11:53:54,491 INFO L130 BoogieDeclarations]: Found specification of procedure kthread_create_on_node [2020-10-14 11:53:54,491 INFO L130 BoogieDeclarations]: Found specification of procedure l1oip_law_to_4bit [2020-10-14 11:53:54,491 INFO L130 BoogieDeclarations]: Found specification of procedure l1oip_4bit_to_law [2020-10-14 11:53:54,491 INFO L130 BoogieDeclarations]: Found specification of procedure l1oip_alaw_to_ulaw [2020-10-14 11:53:54,492 INFO L130 BoogieDeclarations]: Found specification of procedure l1oip_ulaw_to_alaw [2020-10-14 11:53:54,492 INFO L130 BoogieDeclarations]: Found specification of procedure l1oip_4bit_free [2020-10-14 11:53:54,492 INFO L130 BoogieDeclarations]: Found specification of procedure l1oip_4bit_alloc [2020-10-14 11:53:54,492 INFO L130 BoogieDeclarations]: Found specification of procedure l1oip_socket_send [2020-10-14 11:53:54,492 INFO L130 BoogieDeclarations]: Found specification of procedure l1oip_socket_recv [2020-10-14 11:53:54,492 INFO L130 BoogieDeclarations]: Found specification of procedure l1oip_socket_parse [2020-10-14 11:53:54,492 INFO L130 BoogieDeclarations]: Found specification of procedure l1oip_socket_thread [2020-10-14 11:53:54,496 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~int~TO~int [2020-10-14 11:53:54,496 INFO L130 BoogieDeclarations]: Found specification of procedure l1oip_socket_close [2020-10-14 11:53:54,496 INFO L130 BoogieDeclarations]: Found specification of procedure l1oip_socket_open [2020-10-14 11:53:54,497 INFO L130 BoogieDeclarations]: Found specification of procedure l1oip_send_bh [2020-10-14 11:53:54,497 INFO L130 BoogieDeclarations]: Found specification of procedure l1oip_keepalive [2020-10-14 11:53:54,497 INFO L130 BoogieDeclarations]: Found specification of procedure l1oip_timeout [2020-10-14 11:53:54,497 INFO L130 BoogieDeclarations]: Found specification of procedure handle_dmsg [2020-10-14 11:53:54,497 INFO L130 BoogieDeclarations]: Found specification of procedure channel_dctrl [2020-10-14 11:53:54,497 INFO L130 BoogieDeclarations]: Found specification of procedure open_dchannel [2020-10-14 11:53:54,497 INFO L130 BoogieDeclarations]: Found specification of procedure open_bchannel [2020-10-14 11:53:54,497 INFO L130 BoogieDeclarations]: Found specification of procedure l1oip_dctrl [2020-10-14 11:53:54,497 INFO L130 BoogieDeclarations]: Found specification of procedure handle_bmsg [2020-10-14 11:53:54,498 INFO L130 BoogieDeclarations]: Found specification of procedure channel_bctrl [2020-10-14 11:53:54,498 INFO L130 BoogieDeclarations]: Found specification of procedure l1oip_bctrl [2020-10-14 11:53:54,498 INFO L130 BoogieDeclarations]: Found specification of procedure release_card [2020-10-14 11:53:54,498 INFO L130 BoogieDeclarations]: Found specification of procedure l1oip_cleanup [2020-10-14 11:53:54,498 INFO L130 BoogieDeclarations]: Found specification of procedure init_card [2020-10-14 11:53:54,498 INFO L130 BoogieDeclarations]: Found specification of procedure l1oip_init [2020-10-14 11:53:54,499 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize [2020-10-14 11:53:54,499 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2020-10-14 11:53:54,499 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-14 11:53:54,499 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_trylock_18 [2020-10-14 11:53:54,499 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_16 [2020-10-14 11:53:54,499 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_19 [2020-10-14 11:53:54,499 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_21 [2020-10-14 11:53:54,499 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_15 [2020-10-14 11:53:54,499 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_17 [2020-10-14 11:53:54,500 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_20 [2020-10-14 11:53:54,500 INFO L130 BoogieDeclarations]: Found specification of procedure vzalloc [2020-10-14 11:53:54,500 INFO L130 BoogieDeclarations]: Found specification of procedure vfree [2020-10-14 11:53:54,500 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2020-10-14 11:53:54,500 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_trap [2020-10-14 11:53:54,500 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_interruptible_cred_guard_mutex_of_signal_struct [2020-10-14 11:53:54,500 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_killable_cred_guard_mutex_of_signal_struct [2020-10-14 11:53:54,500 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_trylock_cred_guard_mutex_of_signal_struct [2020-10-14 11:53:54,500 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_dec_and_mutex_lock_cred_guard_mutex_of_signal_struct [2020-10-14 11:53:54,501 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_is_locked_cred_guard_mutex_of_signal_struct [2020-10-14 11:53:54,501 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_interruptible_lock [2020-10-14 11:53:54,501 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_killable_lock [2020-10-14 11:53:54,501 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_trylock_lock [2020-10-14 11:53:54,501 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_dec_and_mutex_lock_lock [2020-10-14 11:53:54,501 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_is_locked_lock [2020-10-14 11:53:54,501 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_interruptible_mutex_of_device [2020-10-14 11:53:54,501 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_killable_mutex_of_device [2020-10-14 11:53:54,501 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_dec_and_mutex_lock_mutex_of_device [2020-10-14 11:53:54,502 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_is_locked_mutex_of_device [2020-10-14 11:53:54,502 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_bool [2020-10-14 11:53:54,502 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_long [2020-10-14 11:53:54,502 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-10-14 11:53:54,502 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-14 11:53:54,502 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-14 11:53:54,502 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2020-10-14 11:53:54,502 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-14 11:53:54,502 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2020-10-14 11:53:54,502 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2020-10-14 11:53:54,503 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2020-10-14 11:53:54,503 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2020-10-14 11:54:07,629 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-14 11:54:07,630 INFO L295 CfgBuilder]: Removed 0 assume(true) statements. [2020-10-14 11:54:07,643 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 11:54:07 BoogieIcfgContainer [2020-10-14 11:54:07,644 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-14 11:54:07,647 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-14 11:54:07,647 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-14 11:54:07,650 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-14 11:54:07,651 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.10 11:53:51" (1/3) ... [2020-10-14 11:54:07,652 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6d111022 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 11:54:07, skipping insertion in model container [2020-10-14 11:54:07,652 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:53:53" (2/3) ... [2020-10-14 11:54:07,652 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6d111022 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 11:54:07, skipping insertion in model container [2020-10-14 11:54:07,653 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 11:54:07" (3/3) ... [2020-10-14 11:54:07,655 INFO L109 eAbstractionObserver]: Analyzing ICFG 32_7a_cilled_linux-3.8-rc1-drivers--isdn--mISDN--l1oip.ko-main.cil.out.i [2020-10-14 11:54:07,666 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-14 11:54:07,678 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-14 11:54:07,692 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-14 11:54:07,724 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-10-14 11:54:07,724 INFO L376 AbstractCegarLoop]: Hoare is true [2020-10-14 11:54:07,724 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-14 11:54:07,724 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-14 11:54:07,724 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-14 11:54:07,725 INFO L380 AbstractCegarLoop]: Difference is false [2020-10-14 11:54:07,725 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-14 11:54:07,725 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-14 11:54:07,764 INFO L276 IsEmpty]: Start isEmpty. Operand 1081 states. [2020-10-14 11:54:07,772 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2020-10-14 11:54:07,772 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 11:54:07,773 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] [2020-10-14 11:54:07,774 INFO L427 AbstractCegarLoop]: === Iteration 1 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 11:54:07,779 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 11:54:07,780 INFO L82 PathProgramCache]: Analyzing trace with hash -574548870, now seen corresponding path program 1 times [2020-10-14 11:54:07,788 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 11:54:07,789 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1552947181] [2020-10-14 11:54:07,789 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 11:54:08,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 11:54:09,068 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 11:54:09,557 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 11:54:18,875 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 11:54:18,876 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 48 [2020-10-14 11:54:18,876 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 11:54:18,876 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10097 [2020-10-14 11:54:18,882 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 11:54:18,882 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 11:54:18,883 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 11:54:18,883 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-10-14 11:54:18,883 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 29 [2020-10-14 11:54:18,883 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 6 [2020-10-14 11:54:24,842 WARN L193 SmtUtils]: Spent 5.67 s on a formula simplification that was a NOOP. DAG size: 1201 [2020-10-14 11:54:24,846 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 11:54:24,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 11:54:24,909 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 11:54:26,953 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 11:54:26,954 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 11:54:26,954 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 11:54:26,954 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2063 [2020-10-14 11:54:26,954 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 11:54:26,954 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 11:54:26,955 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 11:54:26,955 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 11:54:26,955 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 11:54:26,955 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 11:54:27,191 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 11:54:27,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 11:54:27,201 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 11:54:27,209 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 11:54:27,210 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 11:54:27,210 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 11:54:27,210 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-14 11:54:27,210 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 11:54:27,210 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 11:54:27,211 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 11:54:27,211 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 11:54:27,211 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-14 11:54:27,211 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 11:54:27,258 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-10-14 11:54:27,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 11:54:27,272 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 11:54:27,297 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 11:54:27,297 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-14 11:54:27,298 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 11:54:27,298 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 31 [2020-10-14 11:54:27,298 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 11:54:27,298 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 11:54:27,298 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 11:54:27,298 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 11:54:27,299 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-10-14 11:54:27,299 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 11:54:27,338 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-14 11:54:27,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 11:54:27,347 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 11:54:27,358 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 11:54:27,359 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 11:54:27,359 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 11:54:27,359 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-14 11:54:27,359 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 11:54:27,360 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 11:54:27,360 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 11:54:27,360 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 11:54:27,360 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 11:54:27,361 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 11:54:27,404 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 11:54:27,406 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1552947181] [2020-10-14 11:54:27,408 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 11:54:27,408 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-14 11:54:27,409 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1119686896] [2020-10-14 11:54:27,414 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 11:54:27,415 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 11:54:27,433 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 11:54:27,434 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 11:54:27,437 INFO L87 Difference]: Start difference. First operand 1081 states. Second operand 7 states. [2020-10-14 11:54:33,113 WARN L193 SmtUtils]: Spent 5.60 s on a formula simplification that was a NOOP. DAG size: 1207 [2020-10-14 11:54:49,113 WARN L193 SmtUtils]: Spent 5.68 s on a formula simplification that was a NOOP. DAG size: 1209 [2020-10-14 11:55:07,897 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 11:55:07,897 INFO L93 Difference]: Finished difference Result 1573 states and 2134 transitions. [2020-10-14 11:55:07,899 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-14 11:55:07,900 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 32 [2020-10-14 11:55:07,900 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 11:55:07,923 INFO L225 Difference]: With dead ends: 1573 [2020-10-14 11:55:07,923 INFO L226 Difference]: Without dead ends: 882 [2020-10-14 11:55:07,937 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 17.3s TimeCoverageRelationStatistics Valid=53, Invalid=103, Unknown=0, NotChecked=0, Total=156 [2020-10-14 11:55:07,958 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 882 states. [2020-10-14 11:55:08,410 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 882 to 682. [2020-10-14 11:55:08,411 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 682 states. [2020-10-14 11:55:08,416 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 682 states to 682 states and 877 transitions. [2020-10-14 11:55:08,418 INFO L78 Accepts]: Start accepts. Automaton has 682 states and 877 transitions. Word has length 32 [2020-10-14 11:55:08,419 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 11:55:08,419 INFO L479 AbstractCegarLoop]: Abstraction has 682 states and 877 transitions. [2020-10-14 11:55:08,419 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 11:55:08,419 INFO L276 IsEmpty]: Start isEmpty. Operand 682 states and 877 transitions. [2020-10-14 11:55:08,422 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2020-10-14 11:55:08,422 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 11:55:08,422 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] [2020-10-14 11:55:08,422 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-14 11:55:08,423 INFO L427 AbstractCegarLoop]: === Iteration 2 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 11:55:08,423 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 11:55:08,423 INFO L82 PathProgramCache]: Analyzing trace with hash -631732400, now seen corresponding path program 1 times [2020-10-14 11:55:08,423 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 11:55:08,424 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1181721223] [2020-10-14 11:55:08,424 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 11:55:08,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 11:55:08,858 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 11:55:09,192 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 11:55:17,240 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 11:55:17,241 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 49 [2020-10-14 11:55:17,241 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 11:55:17,242 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8587 [2020-10-14 11:55:17,242 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 11:55:17,242 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 11:55:17,242 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 11:55:17,243 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-10-14 11:55:17,243 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 30 [2020-10-14 11:55:17,243 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 11:55:23,759 WARN L193 SmtUtils]: Spent 6.16 s on a formula simplification that was a NOOP. DAG size: 1201 [2020-10-14 11:55:23,767 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 11:55:23,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 11:55:23,819 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 11:55:25,470 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 11:55:25,471 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 11:55:25,471 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 11:55:25,471 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1666 [2020-10-14 11:55:25,471 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 11:55:25,471 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 11:55:25,472 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 11:55:25,472 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 11:55:25,472 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 11:55:25,472 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 11:55:25,676 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 11:55:25,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 11:55:25,682 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 11:55:25,687 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 11:55:25,687 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 11:55:25,687 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 11:55:25,687 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-14 11:55:25,687 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 11:55:25,688 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 11:55:25,688 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 11:55:25,688 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 11:55:25,688 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-14 11:55:25,689 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 11:55:25,743 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-10-14 11:55:25,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 11:55:25,757 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 11:55:25,777 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 11:55:25,777 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-14 11:55:25,777 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 11:55:25,777 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-10-14 11:55:25,778 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 11:55:25,778 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 11:55:25,778 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 11:55:25,778 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 11:55:25,778 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-10-14 11:55:25,779 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 11:55:25,831 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-14 11:55:25,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 11:55:25,836 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 11:55:25,844 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 11:55:25,845 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 11:55:25,845 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 11:55:25,845 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-14 11:55:25,846 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 11:55:25,846 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 11:55:25,846 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 11:55:25,846 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 11:55:25,847 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 11:55:25,847 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 11:55:25,872 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 11:55:25,872 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1181721223] [2020-10-14 11:55:25,872 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 11:55:25,873 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-14 11:55:25,873 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [582340527] [2020-10-14 11:55:25,874 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 11:55:25,875 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 11:55:25,875 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 11:55:25,875 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 11:55:25,875 INFO L87 Difference]: Start difference. First operand 682 states and 877 transitions. Second operand 7 states. [2020-10-14 11:55:31,433 WARN L193 SmtUtils]: Spent 5.52 s on a formula simplification that was a NOOP. DAG size: 1207 [2020-10-14 11:55:39,510 WARN L193 SmtUtils]: Spent 5.67 s on a formula simplification that was a NOOP. DAG size: 1209 [2020-10-14 11:55:58,514 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 11:55:58,517 INFO L93 Difference]: Finished difference Result 884 states and 1190 transitions. [2020-10-14 11:55:58,518 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-14 11:55:58,518 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 33 [2020-10-14 11:55:58,518 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 11:55:58,525 INFO L225 Difference]: With dead ends: 884 [2020-10-14 11:55:58,525 INFO L226 Difference]: Without dead ends: 881 [2020-10-14 11:55:58,526 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 17.7s TimeCoverageRelationStatistics Valid=53, Invalid=103, Unknown=0, NotChecked=0, Total=156 [2020-10-14 11:55:58,528 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 881 states. [2020-10-14 11:55:58,878 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 881 to 681. [2020-10-14 11:55:58,878 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 681 states. [2020-10-14 11:55:58,881 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 681 states to 681 states and 875 transitions. [2020-10-14 11:55:58,881 INFO L78 Accepts]: Start accepts. Automaton has 681 states and 875 transitions. Word has length 33 [2020-10-14 11:55:58,882 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 11:55:58,882 INFO L479 AbstractCegarLoop]: Abstraction has 681 states and 875 transitions. [2020-10-14 11:55:58,882 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 11:55:58,882 INFO L276 IsEmpty]: Start isEmpty. Operand 681 states and 875 transitions. [2020-10-14 11:55:58,884 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2020-10-14 11:55:58,884 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 11:55:58,884 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] [2020-10-14 11:55:58,884 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-14 11:55:58,884 INFO L427 AbstractCegarLoop]: === Iteration 3 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 11:55:58,885 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 11:55:58,885 INFO L82 PathProgramCache]: Analyzing trace with hash 1890550333, now seen corresponding path program 1 times [2020-10-14 11:55:58,885 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 11:55:58,885 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [953373055] [2020-10-14 11:55:58,886 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 11:55:59,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 11:55:59,292 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 11:56:05,716 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 11:56:05,716 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 50 [2020-10-14 11:56:05,717 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 11:56:05,717 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6650 [2020-10-14 11:56:05,717 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 11:56:05,717 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 11:56:05,717 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 11:56:05,718 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 18 [2020-10-14 11:56:05,718 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 11:56:05,718 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 11:56:11,388 WARN L193 SmtUtils]: Spent 5.49 s on a formula simplification that was a NOOP. DAG size: 1201 [2020-10-14 11:56:11,391 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 11:56:11,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 11:56:11,445 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 11:56:12,948 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 11:56:12,948 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 11:56:12,948 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 11:56:12,948 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1519 [2020-10-14 11:56:12,949 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 11:56:12,949 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 11:56:12,949 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 11:56:12,949 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 11:56:12,949 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 11:56:12,950 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 11:56:13,125 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 11:56:13,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 11:56:13,133 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 11:56:13,140 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 11:56:13,140 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 11:56:13,141 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 11:56:13,141 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-14 11:56:13,141 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 11:56:13,142 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 11:56:13,142 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 11:56:13,142 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 11:56:13,142 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 11:56:13,143 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 11:56:13,209 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-10-14 11:56:13,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 11:56:13,226 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 11:56:13,242 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 11:56:13,243 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-14 11:56:13,243 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 11:56:13,243 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-10-14 11:56:13,243 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 11:56:13,243 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 11:56:13,244 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 11:56:13,244 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 14 [2020-10-14 11:56:13,244 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 11:56:13,244 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 11:56:13,300 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-14 11:56:13,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 11:56:13,309 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 11:56:13,318 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 11:56:13,318 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 11:56:13,318 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 11:56:13,319 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-14 11:56:13,319 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 11:56:13,319 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 11:56:13,320 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 11:56:13,320 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 11:56:13,320 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 11:56:13,321 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 11:56:13,347 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 11:56:13,348 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [953373055] [2020-10-14 11:56:13,348 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 11:56:13,348 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-14 11:56:13,348 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [771031272] [2020-10-14 11:56:13,349 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 11:56:13,349 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 11:56:13,350 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 11:56:13,350 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 11:56:13,350 INFO L87 Difference]: Start difference. First operand 681 states and 875 transitions. Second operand 7 states. [2020-10-14 11:56:18,804 WARN L193 SmtUtils]: Spent 5.42 s on a formula simplification that was a NOOP. DAG size: 1207 [2020-10-14 11:56:26,980 WARN L193 SmtUtils]: Spent 5.68 s on a formula simplification that was a NOOP. DAG size: 1209 [2020-10-14 11:57:01,453 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 11:57:01,453 INFO L93 Difference]: Finished difference Result 1821 states and 2418 transitions. [2020-10-14 11:57:01,461 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-14 11:57:01,461 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 34 [2020-10-14 11:57:01,462 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 11:57:01,470 INFO L225 Difference]: With dead ends: 1821 [2020-10-14 11:57:01,470 INFO L226 Difference]: Without dead ends: 1417 [2020-10-14 11:57:01,472 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 16.9s TimeCoverageRelationStatistics Valid=61, Invalid=121, Unknown=0, NotChecked=0, Total=182 [2020-10-14 11:57:01,475 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1417 states. [2020-10-14 11:57:02,412 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1417 to 1088. [2020-10-14 11:57:02,413 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1088 states. [2020-10-14 11:57:02,417 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1088 states to 1088 states and 1399 transitions. [2020-10-14 11:57:02,418 INFO L78 Accepts]: Start accepts. Automaton has 1088 states and 1399 transitions. Word has length 34 [2020-10-14 11:57:02,418 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 11:57:02,418 INFO L479 AbstractCegarLoop]: Abstraction has 1088 states and 1399 transitions. [2020-10-14 11:57:02,419 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 11:57:02,419 INFO L276 IsEmpty]: Start isEmpty. Operand 1088 states and 1399 transitions. [2020-10-14 11:57:02,420 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2020-10-14 11:57:02,421 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 11:57:02,421 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] [2020-10-14 11:57:02,421 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-14 11:57:02,421 INFO L427 AbstractCegarLoop]: === Iteration 4 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 11:57:02,421 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 11:57:02,422 INFO L82 PathProgramCache]: Analyzing trace with hash 585006904, now seen corresponding path program 1 times [2020-10-14 11:57:02,422 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 11:57:02,422 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [863023024] [2020-10-14 11:57:02,422 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 11:57:02,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 11:57:02,871 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 11:57:16,282 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 11:57:16,283 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 72 [2020-10-14 11:57:16,283 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 11:57:16,283 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13655 [2020-10-14 11:57:16,283 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 11:57:16,284 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 11:57:16,284 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-14 11:57:16,284 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 11:57:16,285 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 48 [2020-10-14 11:57:16,285 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 11:57:22,359 WARN L193 SmtUtils]: Spent 5.79 s on a formula simplification that was a NOOP. DAG size: 1201 [2020-10-14 11:57:22,362 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 11:57:22,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 11:57:22,596 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 11:57:26,591 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 11:57:26,591 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 11:57:26,591 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 11:57:26,591 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4113 [2020-10-14 11:57:26,592 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 11:57:26,592 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 11:57:26,592 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 11:57:26,592 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 11:57:26,593 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-14 11:57:26,593 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 11:57:26,807 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-14 11:57:26,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 11:57:26,812 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 11:57:26,816 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 11:57:26,816 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 11:57:26,816 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 11:57:26,817 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-14 11:57:26,817 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 11:57:26,817 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 11:57:26,817 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 11:57:26,818 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 11:57:26,818 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-14 11:57:26,818 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 11:57:26,871 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2020-10-14 11:57:26,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 11:57:26,888 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 11:57:26,940 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 11:57:27,198 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 11:57:27,198 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 36 [2020-10-14 11:57:27,198 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 11:57:27,199 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 318 [2020-10-14 11:57:27,199 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 11:57:27,199 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 11:57:27,200 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 11:57:27,200 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 26 [2020-10-14 11:57:27,200 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-14 11:57:27,201 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 11:57:27,330 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-14 11:57:27,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 11:57:27,335 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 11:57:27,338 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 11:57:27,339 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 11:57:27,339 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 11:57:27,339 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-14 11:57:27,339 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 11:57:27,339 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 11:57:27,340 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 11:57:27,340 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 11:57:27,340 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 11:57:27,340 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 11:57:27,347 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-10-14 11:57:27,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 11:57:27,351 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 11:57:27,354 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 11:57:27,354 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 11:57:27,354 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 11:57:27,354 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-14 11:57:27,355 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 11:57:27,355 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 11:57:27,355 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 11:57:27,355 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 11:57:27,356 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 11:57:27,356 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 11:57:27,361 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-14 11:57:27,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 11:57:27,366 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 11:57:27,368 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 11:57:27,368 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 11:57:27,368 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 11:57:27,369 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-14 11:57:27,369 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 11:57:27,369 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 11:57:27,369 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 11:57:27,369 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 11:57:27,370 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 11:57:27,370 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 11:57:27,440 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2020-10-14 11:57:27,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 11:57:27,453 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 11:57:27,463 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 11:57:27,463 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 11:57:27,464 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 11:57:27,464 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-14 11:57:27,464 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 11:57:27,464 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 11:57:27,464 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-14 11:57:27,465 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 11:57:27,465 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-14 11:57:27,466 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 11:57:27,550 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 11:57:27,550 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [863023024] [2020-10-14 11:57:27,551 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 11:57:27,551 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-10-14 11:57:27,551 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [986559108] [2020-10-14 11:57:27,552 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-14 11:57:27,552 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 11:57:27,552 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-14 11:57:27,552 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2020-10-14 11:57:27,552 INFO L87 Difference]: Start difference. First operand 1088 states and 1399 transitions. Second operand 11 states.