/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=NARROWEST --traceabstraction.additional.smt.options log-additional-information=true --traceabstraction.additional.smt.options unknown-allowed=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-64bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/ldv-linux-3.16-rc1/43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-sound--drivers--snd-serial-u16550.ko-entry_point.cil.out.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-adbd35c [2020-10-13 19:59:51,468 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-13 19:59:51,471 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-13 19:59:51,502 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-13 19:59:51,503 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-13 19:59:51,504 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-13 19:59:51,505 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-13 19:59:51,507 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-13 19:59:51,509 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-13 19:59:51,510 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-13 19:59:51,512 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-13 19:59:51,513 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-13 19:59:51,513 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-13 19:59:51,514 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-13 19:59:51,515 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-13 19:59:51,516 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-13 19:59:51,517 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-13 19:59:51,518 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-13 19:59:51,520 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-13 19:59:51,522 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-13 19:59:51,524 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-13 19:59:51,525 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-13 19:59:51,527 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-13 19:59:51,527 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-13 19:59:51,530 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-13 19:59:51,531 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-13 19:59:51,531 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-13 19:59:51,532 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-13 19:59:51,532 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-13 19:59:51,533 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-13 19:59:51,534 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-13 19:59:51,535 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-13 19:59:51,535 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-13 19:59:51,536 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-13 19:59:51,537 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-13 19:59:51,538 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-13 19:59:51,538 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-13 19:59:51,539 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-13 19:59:51,539 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-13 19:59:51,540 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-13 19:59:51,541 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-13 19:59:51,541 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-64bit-Automizer_Default.epf [2020-10-13 19:59:51,565 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-13 19:59:51,565 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-13 19:59:51,567 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-13 19:59:51,567 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-13 19:59:51,567 INFO L138 SettingsManager]: * Use SBE=true [2020-10-13 19:59:51,567 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-13 19:59:51,568 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-13 19:59:51,568 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-13 19:59:51,568 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-13 19:59:51,568 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-13 19:59:51,568 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-13 19:59:51,568 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-13 19:59:51,569 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-13 19:59:51,569 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-13 19:59:51,569 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-13 19:59:51,569 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-13 19:59:51,569 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-13 19:59:51,570 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-13 19:59:51,570 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-13 19:59:51,570 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-13 19:59:51,570 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-13 19:59:51,571 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-13 19:59:51,571 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-13 19:59:51,571 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-13 19:59:51,571 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-13 19:59:51,571 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-13 19:59:51,571 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-10-13 19:59:51,572 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=NARROWEST;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=NARROWEST;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=NARROWEST;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=NARROWEST;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=NARROWEST;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=NARROWEST;log-additional-information=true;unknown-allowed=true; [2020-10-13 19:59:51,889 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-13 19:59:51,903 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-13 19:59:51,906 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-13 19:59:51,908 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-13 19:59:51,908 INFO L275 PluginConnector]: CDTParser initialized [2020-10-13 19:59:51,909 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-linux-3.16-rc1/43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-sound--drivers--snd-serial-u16550.ko-entry_point.cil.out.i [2020-10-13 19:59:51,977 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/be9872efa/42860a2c19b2492cb73a7e9796e21008/FLAG9db0851fe [2020-10-13 19:59:52,696 INFO L306 CDTParser]: Found 1 translation units. [2020-10-13 19:59:52,697 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/ldv-linux-3.16-rc1/43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-sound--drivers--snd-serial-u16550.ko-entry_point.cil.out.i [2020-10-13 19:59:52,729 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/be9872efa/42860a2c19b2492cb73a7e9796e21008/FLAG9db0851fe [2020-10-13 19:59:52,838 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/be9872efa/42860a2c19b2492cb73a7e9796e21008 [2020-10-13 19:59:52,848 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-13 19:59:52,850 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-13 19:59:52,851 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-13 19:59:52,851 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-13 19:59:52,855 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-13 19:59:52,856 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 07:59:52" (1/1) ... [2020-10-13 19:59:52,858 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@25c854b0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:59:52, skipping insertion in model container [2020-10-13 19:59:52,859 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 07:59:52" (1/1) ... [2020-10-13 19:59:52,866 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-13 19:59:52,946 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-13 19:59:53,468 WARN L1191 CHandler]: Detected problem Invalid redeclaration of the name show at C: (*show)(struct kobject___0 * , struct attribute___0 * , char * ) [2471] [2020-10-13 19:59:53,469 WARN L1191 CHandler]: Detected problem Invalid redeclaration of the name store at C: (*store)(struct kobject___0 * , struct attribute___0 * , char const * , size_t ) [2472-2473] [2020-10-13 19:59:54,006 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-13 19:59:54,051 INFO L203 MainTranslator]: Completed pre-run [2020-10-13 19:59:54,142 WARN L1191 CHandler]: Detected problem Invalid redeclaration of the name show at C: (*show)(struct kobject___0 * , struct attribute___0 * , char * ) [2471] [2020-10-13 19:59:54,143 WARN L1191 CHandler]: Detected problem Invalid redeclaration of the name store at C: (*store)(struct kobject___0 * , struct attribute___0 * , char const * , size_t ) [2472-2473] [2020-10-13 19:59:54,342 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-13 19:59:54,517 INFO L208 MainTranslator]: Completed translation [2020-10-13 19:59:54,517 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:59:54 WrapperNode [2020-10-13 19:59:54,518 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-13 19:59:54,518 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-13 19:59:54,519 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-13 19:59:54,519 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-13 19:59:54,540 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:59:54" (1/1) ... [2020-10-13 19:59:54,540 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:59:54" (1/1) ... [2020-10-13 19:59:54,590 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:59:54" (1/1) ... [2020-10-13 19:59:54,591 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:59:54" (1/1) ... [2020-10-13 19:59:54,742 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:59:54" (1/1) ... [2020-10-13 19:59:54,775 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:59:54" (1/1) ... [2020-10-13 19:59:54,806 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:59:54" (1/1) ... [2020-10-13 19:59:54,831 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-13 19:59:54,832 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-13 19:59:54,832 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-13 19:59:54,832 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-13 19:59:54,833 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:59:54" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-13 19:59:54,911 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-13 19:59:54,911 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-13 19:59:54,912 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~TO~VOID [2020-10-13 19:59:54,912 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2020-10-13 19:59:54,912 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2020-10-13 19:59:54,913 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_1 [2020-10-13 19:59:54,914 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_5 [2020-10-13 19:59:54,914 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irqrestore_8 [2020-10-13 19:59:54,914 INFO L138 BoogieDeclarations]: Found implementation of procedure outb [2020-10-13 19:59:54,914 INFO L138 BoogieDeclarations]: Found implementation of procedure inb [2020-10-13 19:59:54,914 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-10-13 19:59:54,915 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2020-10-13 19:59:54,915 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2020-10-13 19:59:54,917 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2020-10-13 19:59:54,917 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_ulong [2020-10-13 19:59:54,918 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2020-10-13 19:59:54,918 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2020-10-13 19:59:54,918 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2020-10-13 19:59:54,918 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_trap [2020-10-13 19:59:54,918 INFO L138 BoogieDeclarations]: Found implementation of procedure request_irq [2020-10-13 19:59:54,919 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_get_drvdata [2020-10-13 19:59:54,919 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_set_drvdata [2020-10-13 19:59:54,919 INFO L138 BoogieDeclarations]: Found implementation of procedure platform_device_register_resndata [2020-10-13 19:59:54,920 INFO L138 BoogieDeclarations]: Found implementation of procedure platform_device_register_simple [2020-10-13 19:59:54,920 INFO L138 BoogieDeclarations]: Found implementation of procedure platform_get_drvdata [2020-10-13 19:59:54,920 INFO L138 BoogieDeclarations]: Found implementation of procedure platform_set_drvdata [2020-10-13 19:59:54,920 INFO L138 BoogieDeclarations]: Found implementation of procedure snd_uart16550_add_timer [2020-10-13 19:59:54,920 INFO L138 BoogieDeclarations]: Found implementation of procedure snd_uart16550_del_timer [2020-10-13 19:59:54,920 INFO L138 BoogieDeclarations]: Found implementation of procedure snd_uart16550_buffer_output [2020-10-13 19:59:54,921 INFO L138 BoogieDeclarations]: Found implementation of procedure snd_uart16550_io_loop [2020-10-13 19:59:54,921 INFO L138 BoogieDeclarations]: Found implementation of procedure snd_uart16550_interrupt [2020-10-13 19:59:54,921 INFO L138 BoogieDeclarations]: Found implementation of procedure snd_uart16550_buffer_timer [2020-10-13 19:59:54,921 INFO L138 BoogieDeclarations]: Found implementation of procedure snd_uart16550_detect [2020-10-13 19:59:54,921 INFO L138 BoogieDeclarations]: Found implementation of procedure snd_uart16550_do_open [2020-10-13 19:59:54,921 INFO L138 BoogieDeclarations]: Found implementation of procedure snd_uart16550_do_close [2020-10-13 19:59:54,921 INFO L138 BoogieDeclarations]: Found implementation of procedure snd_uart16550_input_open [2020-10-13 19:59:54,923 INFO L138 BoogieDeclarations]: Found implementation of procedure snd_uart16550_input_close [2020-10-13 19:59:54,924 INFO L138 BoogieDeclarations]: Found implementation of procedure snd_uart16550_input_trigger [2020-10-13 19:59:54,924 INFO L138 BoogieDeclarations]: Found implementation of procedure snd_uart16550_output_open [2020-10-13 19:59:54,924 INFO L138 BoogieDeclarations]: Found implementation of procedure snd_uart16550_output_close [2020-10-13 19:59:54,925 INFO L138 BoogieDeclarations]: Found implementation of procedure snd_uart16550_buffer_can_write [2020-10-13 19:59:54,925 INFO L138 BoogieDeclarations]: Found implementation of procedure snd_uart16550_write_buffer [2020-10-13 19:59:54,925 INFO L138 BoogieDeclarations]: Found implementation of procedure snd_uart16550_output_byte [2020-10-13 19:59:54,925 INFO L138 BoogieDeclarations]: Found implementation of procedure snd_uart16550_output_write [2020-10-13 19:59:54,925 INFO L138 BoogieDeclarations]: Found implementation of procedure snd_uart16550_output_trigger [2020-10-13 19:59:54,925 INFO L138 BoogieDeclarations]: Found implementation of procedure snd_uart16550_free [2020-10-13 19:59:54,925 INFO L138 BoogieDeclarations]: Found implementation of procedure snd_uart16550_dev_free [2020-10-13 19:59:54,926 INFO L138 BoogieDeclarations]: Found implementation of procedure snd_uart16550_create [2020-10-13 19:59:54,926 INFO L138 BoogieDeclarations]: Found implementation of procedure snd_uart16550_substreams [2020-10-13 19:59:54,927 INFO L138 BoogieDeclarations]: Found implementation of procedure snd_uart16550_rmidi [2020-10-13 19:59:54,927 INFO L138 BoogieDeclarations]: Found implementation of procedure snd_serial_probe [2020-10-13 19:59:54,927 INFO L138 BoogieDeclarations]: Found implementation of procedure snd_serial_remove [2020-10-13 19:59:54,927 INFO L138 BoogieDeclarations]: Found implementation of procedure snd_serial_unregister_all [2020-10-13 19:59:54,928 INFO L138 BoogieDeclarations]: Found implementation of procedure alsa_card_serial_init [2020-10-13 19:59:54,928 INFO L138 BoogieDeclarations]: Found implementation of procedure alsa_card_serial_exit [2020-10-13 19:59:54,928 INFO L138 BoogieDeclarations]: Found implementation of procedure choose_timer_2 [2020-10-13 19:59:54,928 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize_snd_rawmidi_ops_5 [2020-10-13 19:59:54,928 INFO L138 BoogieDeclarations]: Found implementation of procedure reg_timer_2 [2020-10-13 19:59:54,928 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_pending_timer_2 [2020-10-13 19:59:54,928 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize_snd_rawmidi_ops_4 [2020-10-13 19:59:54,929 INFO L138 BoogieDeclarations]: Found implementation of procedure disable_suitable_timer_2 [2020-10-13 19:59:54,929 INFO L138 BoogieDeclarations]: Found implementation of procedure disable_suitable_irq_1 [2020-10-13 19:59:54,929 INFO L138 BoogieDeclarations]: Found implementation of procedure reg_check_1 [2020-10-13 19:59:54,929 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_suitable_irq_1 [2020-10-13 19:59:54,929 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_irq_1 [2020-10-13 19:59:54,929 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize_platform_driver_3 [2020-10-13 19:59:54,929 INFO L138 BoogieDeclarations]: Found implementation of procedure choose_interrupt_1 [2020-10-13 19:59:54,931 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-13 19:59:54,931 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2020-10-13 19:59:54,933 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2020-10-13 19:59:54,933 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2020-10-13 19:59:54,933 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2020-10-13 19:59:54,933 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_del_timer_19 [2020-10-13 19:59:54,933 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_irq_20 [2020-10-13 19:59:54,933 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_request_irq_21 [2020-10-13 19:59:54,933 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_platform_driver_unregister_22 [2020-10-13 19:59:54,934 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv___platform_driver_register_23 [2020-10-13 19:59:54,934 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags [2020-10-13 19:59:54,934 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags_and_return_some_page [2020-10-13 19:59:54,934 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_nonatomic [2020-10-13 19:59:54,934 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock [2020-10-13 19:59:54,934 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock [2020-10-13 19:59:54,934 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_trylock [2020-10-13 19:59:54,935 INFO L138 BoogieDeclarations]: Found implementation of procedure __platform_driver_register [2020-10-13 19:59:54,935 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2020-10-13 19:59:54,935 INFO L138 BoogieDeclarations]: Found implementation of procedure __request_region [2020-10-13 19:59:54,935 INFO L138 BoogieDeclarations]: Found implementation of procedure __snd_printk [2020-10-13 19:59:54,935 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock [2020-10-13 19:59:54,935 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_unlock [2020-10-13 19:59:54,935 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_unlock_irqrestore [2020-10-13 19:59:54,935 INFO L138 BoogieDeclarations]: Found implementation of procedure add_timer [2020-10-13 19:59:54,936 INFO L138 BoogieDeclarations]: Found implementation of procedure del_timer [2020-10-13 19:59:54,936 INFO L138 BoogieDeclarations]: Found implementation of procedure free_irq [2020-10-13 19:59:54,936 INFO L138 BoogieDeclarations]: Found implementation of procedure kmem_cache_alloc [2020-10-13 19:59:54,936 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2020-10-13 19:59:54,936 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize [2020-10-13 19:59:54,936 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_some_page [2020-10-13 19:59:54,936 INFO L138 BoogieDeclarations]: Found implementation of procedure platform_device_register_full [2020-10-13 19:59:54,936 INFO L138 BoogieDeclarations]: Found implementation of procedure platform_device_unregister [2020-10-13 19:59:54,937 INFO L138 BoogieDeclarations]: Found implementation of procedure platform_driver_unregister [2020-10-13 19:59:54,937 INFO L138 BoogieDeclarations]: Found implementation of procedure printk [2020-10-13 19:59:54,937 INFO L138 BoogieDeclarations]: Found implementation of procedure release_and_free_resource [2020-10-13 19:59:54,937 INFO L138 BoogieDeclarations]: Found implementation of procedure request_threaded_irq [2020-10-13 19:59:54,937 INFO L138 BoogieDeclarations]: Found implementation of procedure snd_card_free [2020-10-13 19:59:54,937 INFO L138 BoogieDeclarations]: Found implementation of procedure snd_card_new [2020-10-13 19:59:54,938 INFO L138 BoogieDeclarations]: Found implementation of procedure snd_card_register [2020-10-13 19:59:54,939 INFO L138 BoogieDeclarations]: Found implementation of procedure snd_device_new [2020-10-13 19:59:54,939 INFO L138 BoogieDeclarations]: Found implementation of procedure snd_rawmidi_new [2020-10-13 19:59:54,939 INFO L138 BoogieDeclarations]: Found implementation of procedure snd_rawmidi_receive [2020-10-13 19:59:54,939 INFO L138 BoogieDeclarations]: Found implementation of procedure snd_rawmidi_set_ops [2020-10-13 19:59:54,940 INFO L138 BoogieDeclarations]: Found implementation of procedure snd_rawmidi_transmit [2020-10-13 19:59:54,940 INFO L138 BoogieDeclarations]: Found implementation of procedure snd_rawmidi_transmit_ack [2020-10-13 19:59:54,941 INFO L138 BoogieDeclarations]: Found implementation of procedure snd_rawmidi_transmit_peek [2020-10-13 19:59:54,941 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2020-10-13 19:59:54,941 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2020-10-13 19:59:54,941 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2020-10-13 19:59:54,941 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_strcpy [2020-10-13 19:59:54,943 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-10-13 19:59:54,943 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2020-10-13 19:59:54,943 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock [2020-10-13 19:59:54,943 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock [2020-10-13 19:59:54,945 INFO L130 BoogieDeclarations]: Found specification of procedure printk [2020-10-13 19:59:54,945 INFO L130 BoogieDeclarations]: Found specification of procedure sprintf [2020-10-13 19:59:54,946 INFO L130 BoogieDeclarations]: Found specification of procedure memset [2020-10-13 19:59:54,947 INFO L130 BoogieDeclarations]: Found specification of procedure strcpy [2020-10-13 19:59:54,949 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2020-10-13 19:59:54,950 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2020-10-13 19:59:54,950 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock [2020-10-13 19:59:54,950 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_unlock [2020-10-13 19:59:54,950 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_unlock_irqrestore [2020-10-13 19:59:54,951 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2020-10-13 19:59:54,951 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_1 [2020-10-13 19:59:54,951 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2020-10-13 19:59:54,952 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_5 [2020-10-13 19:59:54,952 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2020-10-13 19:59:54,952 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irqrestore_8 [2020-10-13 19:59:54,952 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2020-10-13 19:59:54,952 INFO L130 BoogieDeclarations]: Found specification of procedure __request_region [2020-10-13 19:59:54,952 INFO L130 BoogieDeclarations]: Found specification of procedure del_timer [2020-10-13 19:59:54,952 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_del_timer_19 [2020-10-13 19:59:54,953 INFO L130 BoogieDeclarations]: Found specification of procedure add_timer [2020-10-13 19:59:54,958 INFO L130 BoogieDeclarations]: Found specification of procedure outb [2020-10-13 19:59:54,958 INFO L130 BoogieDeclarations]: Found specification of procedure inb [2020-10-13 19:59:54,959 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2020-10-13 19:59:54,959 INFO L130 BoogieDeclarations]: Found specification of procedure kmem_cache_alloc [2020-10-13 19:59:54,959 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2020-10-13 19:59:54,959 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags [2020-10-13 19:59:54,959 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-10-13 19:59:54,959 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2020-10-13 19:59:54,959 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-13 19:59:54,959 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_ulong [2020-10-13 19:59:54,960 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-13 19:59:54,960 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-10-13 19:59:54,960 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2020-10-13 19:59:54,960 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-10-13 19:59:54,961 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2020-10-13 19:59:54,961 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2020-10-13 19:59:54,961 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2020-10-13 19:59:54,961 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_ulong [2020-10-13 19:59:54,961 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2020-10-13 19:59:54,961 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2020-10-13 19:59:54,961 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_trap [2020-10-13 19:59:54,962 INFO L130 BoogieDeclarations]: Found specification of procedure choose_timer_2 [2020-10-13 19:59:54,962 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize_snd_rawmidi_ops_5 [2020-10-13 19:59:54,963 INFO L130 BoogieDeclarations]: Found specification of procedure reg_timer_2 [2020-10-13 19:59:54,963 INFO L130 BoogieDeclarations]: Found specification of procedure activate_pending_timer_2 [2020-10-13 19:59:54,963 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize_snd_rawmidi_ops_4 [2020-10-13 19:59:54,963 INFO L130 BoogieDeclarations]: Found specification of procedure disable_suitable_timer_2 [2020-10-13 19:59:54,964 INFO L130 BoogieDeclarations]: Found specification of procedure disable_suitable_irq_1 [2020-10-13 19:59:54,964 INFO L130 BoogieDeclarations]: Found specification of procedure reg_check_1 [2020-10-13 19:59:54,964 INFO L130 BoogieDeclarations]: Found specification of procedure activate_suitable_irq_1 [2020-10-13 19:59:54,964 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_irq_1 [2020-10-13 19:59:54,964 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize_platform_driver_3 [2020-10-13 19:59:54,964 INFO L130 BoogieDeclarations]: Found specification of procedure choose_interrupt_1 [2020-10-13 19:59:54,964 INFO L130 BoogieDeclarations]: Found specification of procedure request_threaded_irq [2020-10-13 19:59:54,964 INFO L130 BoogieDeclarations]: Found specification of procedure request_irq [2020-10-13 19:59:54,965 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_request_irq_21 [2020-10-13 19:59:54,965 INFO L130 BoogieDeclarations]: Found specification of procedure free_irq [2020-10-13 19:59:54,965 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_irq_20 [2020-10-13 19:59:54,965 INFO L130 BoogieDeclarations]: Found specification of procedure dev_get_drvdata [2020-10-13 19:59:54,966 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-10-13 19:59:54,966 INFO L130 BoogieDeclarations]: Found specification of procedure dev_set_drvdata [2020-10-13 19:59:54,966 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-10-13 19:59:54,966 INFO L130 BoogieDeclarations]: Found specification of procedure platform_device_unregister [2020-10-13 19:59:54,966 INFO L130 BoogieDeclarations]: Found specification of procedure platform_device_register_full [2020-10-13 19:59:54,966 INFO L130 BoogieDeclarations]: Found specification of procedure platform_device_register_resndata [2020-10-13 19:59:54,966 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-13 19:59:54,967 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-13 19:59:54,967 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-13 19:59:54,967 INFO L130 BoogieDeclarations]: Found specification of procedure platform_device_register_simple [2020-10-13 19:59:54,967 INFO L130 BoogieDeclarations]: Found specification of procedure __platform_driver_register [2020-10-13 19:59:54,967 INFO L130 BoogieDeclarations]: Found specification of procedure ldv___platform_driver_register_23 [2020-10-13 19:59:54,967 INFO L130 BoogieDeclarations]: Found specification of procedure platform_driver_unregister [2020-10-13 19:59:54,967 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_platform_driver_unregister_22 [2020-10-13 19:59:54,967 INFO L130 BoogieDeclarations]: Found specification of procedure platform_get_drvdata [2020-10-13 19:59:54,968 INFO L130 BoogieDeclarations]: Found specification of procedure platform_set_drvdata [2020-10-13 19:59:54,968 INFO L130 BoogieDeclarations]: Found specification of procedure snd_card_new [2020-10-13 19:59:54,969 INFO L130 BoogieDeclarations]: Found specification of procedure snd_card_free [2020-10-13 19:59:54,969 INFO L130 BoogieDeclarations]: Found specification of procedure snd_card_register [2020-10-13 19:59:54,969 INFO L130 BoogieDeclarations]: Found specification of procedure snd_device_new [2020-10-13 19:59:54,969 INFO L130 BoogieDeclarations]: Found specification of procedure release_and_free_resource [2020-10-13 19:59:54,969 INFO L130 BoogieDeclarations]: Found specification of procedure __snd_printk [2020-10-13 19:59:54,969 INFO L130 BoogieDeclarations]: Found specification of procedure snd_rawmidi_new [2020-10-13 19:59:54,969 INFO L130 BoogieDeclarations]: Found specification of procedure snd_rawmidi_set_ops [2020-10-13 19:59:54,970 INFO L130 BoogieDeclarations]: Found specification of procedure snd_rawmidi_receive [2020-10-13 19:59:54,970 INFO L130 BoogieDeclarations]: Found specification of procedure snd_rawmidi_transmit_peek [2020-10-13 19:59:54,970 INFO L130 BoogieDeclarations]: Found specification of procedure snd_rawmidi_transmit_ack [2020-10-13 19:59:54,970 INFO L130 BoogieDeclarations]: Found specification of procedure snd_rawmidi_transmit [2020-10-13 19:59:54,970 INFO L130 BoogieDeclarations]: Found specification of procedure snd_uart16550_add_timer [2020-10-13 19:59:54,970 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-13 19:59:54,970 INFO L130 BoogieDeclarations]: Found specification of procedure snd_uart16550_del_timer [2020-10-13 19:59:54,970 INFO L130 BoogieDeclarations]: Found specification of procedure snd_uart16550_buffer_output [2020-10-13 19:59:54,971 INFO L130 BoogieDeclarations]: Found specification of procedure snd_uart16550_io_loop [2020-10-13 19:59:54,971 INFO L130 BoogieDeclarations]: Found specification of procedure snd_uart16550_interrupt [2020-10-13 19:59:54,971 INFO L130 BoogieDeclarations]: Found specification of procedure snd_uart16550_buffer_timer [2020-10-13 19:59:54,971 INFO L130 BoogieDeclarations]: Found specification of procedure snd_uart16550_detect [2020-10-13 19:59:54,971 INFO L130 BoogieDeclarations]: Found specification of procedure snd_uart16550_do_open [2020-10-13 19:59:54,971 INFO L130 BoogieDeclarations]: Found specification of procedure snd_uart16550_do_close [2020-10-13 19:59:54,971 INFO L130 BoogieDeclarations]: Found specification of procedure snd_uart16550_input_open [2020-10-13 19:59:54,971 INFO L130 BoogieDeclarations]: Found specification of procedure snd_uart16550_input_close [2020-10-13 19:59:54,972 INFO L130 BoogieDeclarations]: Found specification of procedure snd_uart16550_input_trigger [2020-10-13 19:59:54,972 INFO L130 BoogieDeclarations]: Found specification of procedure snd_uart16550_output_open [2020-10-13 19:59:54,972 INFO L130 BoogieDeclarations]: Found specification of procedure snd_uart16550_output_close [2020-10-13 19:59:54,972 INFO L130 BoogieDeclarations]: Found specification of procedure snd_uart16550_buffer_can_write [2020-10-13 19:59:54,972 INFO L130 BoogieDeclarations]: Found specification of procedure snd_uart16550_write_buffer [2020-10-13 19:59:54,972 INFO L130 BoogieDeclarations]: Found specification of procedure snd_uart16550_output_byte [2020-10-13 19:59:54,972 INFO L130 BoogieDeclarations]: Found specification of procedure snd_uart16550_output_write [2020-10-13 19:59:54,972 INFO L130 BoogieDeclarations]: Found specification of procedure snd_uart16550_output_trigger [2020-10-13 19:59:54,973 INFO L130 BoogieDeclarations]: Found specification of procedure snd_uart16550_free [2020-10-13 19:59:54,973 INFO L130 BoogieDeclarations]: Found specification of procedure snd_uart16550_dev_free [2020-10-13 19:59:54,973 INFO L130 BoogieDeclarations]: Found specification of procedure snd_uart16550_create [2020-10-13 19:59:54,973 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2020-10-13 19:59:54,973 INFO L130 BoogieDeclarations]: Found specification of procedure snd_uart16550_substreams [2020-10-13 19:59:54,973 INFO L130 BoogieDeclarations]: Found specification of procedure snd_uart16550_rmidi [2020-10-13 19:59:54,973 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_strcpy [2020-10-13 19:59:54,973 INFO L130 BoogieDeclarations]: Found specification of procedure snd_serial_probe [2020-10-13 19:59:54,974 INFO L130 BoogieDeclarations]: Found specification of procedure snd_serial_remove [2020-10-13 19:59:54,974 INFO L130 BoogieDeclarations]: Found specification of procedure snd_serial_unregister_all [2020-10-13 19:59:54,974 INFO L130 BoogieDeclarations]: Found specification of procedure alsa_card_serial_init [2020-10-13 19:59:54,974 INFO L130 BoogieDeclarations]: Found specification of procedure alsa_card_serial_exit [2020-10-13 19:59:54,974 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize [2020-10-13 19:59:54,974 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2020-10-13 19:59:54,974 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~TO~VOID [2020-10-13 19:59:54,974 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-13 19:59:54,975 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_some_page [2020-10-13 19:59:54,975 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags_and_return_some_page [2020-10-13 19:59:54,975 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_nonatomic [2020-10-13 19:59:54,975 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_trylock [2020-10-13 19:59:54,975 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-10-13 19:59:54,975 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-13 19:59:54,975 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-13 19:59:54,976 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2020-10-13 19:59:54,980 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-13 19:59:54,980 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2020-10-13 19:59:54,980 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2020-10-13 19:59:56,278 INFO L732 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2020-10-13 19:59:58,985 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-13 19:59:58,985 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-10-13 19:59:58,998 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 07:59:58 BoogieIcfgContainer [2020-10-13 19:59:58,998 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-13 19:59:59,002 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-13 19:59:59,002 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-13 19:59:59,006 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-13 19:59:59,006 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 07:59:52" (1/3) ... [2020-10-13 19:59:59,007 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5c1afdd6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 07:59:59, skipping insertion in model container [2020-10-13 19:59:59,007 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:59:54" (2/3) ... [2020-10-13 19:59:59,008 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5c1afdd6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 07:59:59, skipping insertion in model container [2020-10-13 19:59:59,008 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 07:59:58" (3/3) ... [2020-10-13 19:59:59,010 INFO L109 eAbstractionObserver]: Analyzing ICFG 43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-sound--drivers--snd-serial-u16550.ko-entry_point.cil.out.i [2020-10-13 19:59:59,024 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-13 19:59:59,037 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-13 19:59:59,054 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-13 19:59:59,088 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-10-13 19:59:59,088 INFO L376 AbstractCegarLoop]: Hoare is true [2020-10-13 19:59:59,088 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-13 19:59:59,088 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-13 19:59:59,088 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-13 19:59:59,088 INFO L380 AbstractCegarLoop]: Difference is false [2020-10-13 19:59:59,089 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-13 19:59:59,089 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-13 19:59:59,135 INFO L276 IsEmpty]: Start isEmpty. Operand 928 states. [2020-10-13 19:59:59,154 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2020-10-13 19:59:59,155 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 19:59:59,156 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 19:59:59,156 INFO L427 AbstractCegarLoop]: === Iteration 1 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 19:59:59,162 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 19:59:59,163 INFO L82 PathProgramCache]: Analyzing trace with hash -428253486, now seen corresponding path program 1 times [2020-10-13 19:59:59,171 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 19:59:59,171 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1421000107] [2020-10-13 19:59:59,172 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 19:59:59,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 19:59:59,842 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 20:00:00,012 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 20:00:00,170 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 20:00:00,409 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 20:00:00,537 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 20:00:00,681 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 20:00:02,059 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 20:00:04,805 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 20:00:04,806 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 77 [2020-10-13 20:00:04,806 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-10-13 20:00:04,806 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5094 [2020-10-13 20:00:04,808 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 20:00:04,809 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 20:00:04,809 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 48 [2020-10-13 20:00:04,809 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 20:00:04,809 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-13 20:00:06,319 WARN L193 SmtUtils]: Spent 1.36 s on a formula simplification that was a NOOP. DAG size: 427 [2020-10-13 20:00:06,321 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 20:00:06,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 20:00:06,345 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 20:00:06,482 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 20:00:06,482 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 20:00:06,482 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 20:00:06,483 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 143 [2020-10-13 20:00:06,483 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 20:00:06,483 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 20:00:06,483 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 20:00:06,483 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 20:00:06,484 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 20:00:06,533 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-13 20:00:06,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 20:00:06,538 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 20:00:06,539 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 20:00:06,539 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-13 20:00:06,540 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 20:00:06,540 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 20:00:06,540 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 20:00:06,540 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 20:00:06,540 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 20:00:06,541 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 20:00:06,541 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 20:00:06,544 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-10-13 20:00:06,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 20:00:06,549 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 20:00:06,552 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 20:00:06,552 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 20:00:06,552 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 20:00:06,553 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-13 20:00:06,553 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 20:00:06,553 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 20:00:06,553 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 20:00:06,553 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 20:00:06,553 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 20:00:06,573 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-10-13 20:00:06,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 20:00:06,578 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 20:00:06,581 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 20:00:06,581 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 20:00:06,581 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 20:00:06,581 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-13 20:00:06,581 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 20:00:06,582 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 20:00:06,582 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-10-13 20:00:06,582 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 20:00:06,582 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 20:00:06,586 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-10-13 20:00:06,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 20:00:06,591 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 20:00:06,593 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 20:00:06,595 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 20:00:06,596 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 20:00:06,596 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 20:00:06,596 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-13 20:00:06,596 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 20:00:06,596 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 20:00:06,597 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-10-13 20:00:06,597 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 20:00:06,597 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 20:00:06,619 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-10-13 20:00:06,620 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1421000107] [2020-10-13 20:00:06,622 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 20:00:06,622 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-13 20:00:06,623 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [10190901] [2020-10-13 20:00:06,628 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-13 20:00:06,628 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 20:00:06,642 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-13 20:00:06,643 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-13 20:00:06,645 INFO L87 Difference]: Start difference. First operand 928 states. Second operand 4 states. [2020-10-13 20:00:07,784 WARN L193 SmtUtils]: Spent 1.11 s on a formula simplification that was a NOOP. DAG size: 430 [2020-10-13 20:00:22,586 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 20:00:22,586 INFO L93 Difference]: Finished difference Result 2067 states and 2811 transitions. [2020-10-13 20:00:22,587 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-13 20:00:22,589 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 53 [2020-10-13 20:00:22,589 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 20:00:22,623 INFO L225 Difference]: With dead ends: 2067 [2020-10-13 20:00:22,623 INFO L226 Difference]: Without dead ends: 1138 [2020-10-13 20:00:22,633 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-13 20:00:22,657 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1138 states. [2020-10-13 20:00:22,887 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1138 to 884. [2020-10-13 20:00:22,889 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 884 states. [2020-10-13 20:00:22,895 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 884 states to 884 states and 1154 transitions. [2020-10-13 20:00:22,898 INFO L78 Accepts]: Start accepts. Automaton has 884 states and 1154 transitions. Word has length 53 [2020-10-13 20:00:22,898 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 20:00:22,898 INFO L479 AbstractCegarLoop]: Abstraction has 884 states and 1154 transitions. [2020-10-13 20:00:22,898 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-13 20:00:22,898 INFO L276 IsEmpty]: Start isEmpty. Operand 884 states and 1154 transitions. [2020-10-13 20:00:22,904 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2020-10-13 20:00:22,905 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 20:00:22,905 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 20:00:22,905 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-13 20:00:22,906 INFO L427 AbstractCegarLoop]: === Iteration 2 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 20:00:22,906 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 20:00:22,906 INFO L82 PathProgramCache]: Analyzing trace with hash 1851283562, now seen corresponding path program 1 times [2020-10-13 20:00:22,906 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 20:00:22,907 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [655013006] [2020-10-13 20:00:22,907 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 20:00:22,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 20:00:23,049 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 20:00:23,162 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 20:00:23,284 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 20:00:23,397 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 20:00:23,582 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 20:00:28,123 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 20:00:28,124 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 79 [2020-10-13 20:00:28,124 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-13 20:00:28,124 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5133 [2020-10-13 20:00:28,124 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 20:00:28,124 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 20:00:28,125 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 32 [2020-10-13 20:00:28,125 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-13 20:00:28,125 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 20:00:29,252 WARN L193 SmtUtils]: Spent 1.01 s on a formula simplification that was a NOOP. DAG size: 427 [2020-10-13 20:00:29,260 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 20:00:29,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 20:00:29,306 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 20:00:29,438 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 20:00:29,438 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 20:00:29,439 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 20:00:29,439 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 151 [2020-10-13 20:00:29,439 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 20:00:29,439 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 20:00:29,439 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 20:00:29,439 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 20:00:29,440 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 20:00:29,483 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-13 20:00:29,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 20:00:29,488 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 20:00:29,490 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 20:00:29,490 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-13 20:00:29,491 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 20:00:29,491 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-13 20:00:29,491 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 20:00:29,491 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 20:00:29,491 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 20:00:29,492 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 20:00:29,495 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-10-13 20:00:29,499 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-10-13 20:00:29,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 20:00:29,506 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 20:00:29,509 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 20:00:29,510 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 20:00:29,510 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 20:00:29,510 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-13 20:00:29,510 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 20:00:29,510 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 20:00:29,511 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-13 20:00:29,511 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 20:00:29,511 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 20:00:29,532 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-10-13 20:00:29,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 20:00:29,538 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 20:00:29,551 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 20:00:29,551 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 20:00:29,551 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 20:00:29,552 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-13 20:00:29,552 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 20:00:29,552 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 20:00:29,552 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-13 20:00:29,552 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 20:00:29,553 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 20:00:29,559 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2020-10-13 20:00:29,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 20:00:29,566 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 20:00:29,573 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 20:00:29,573 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 20:00:29,573 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 20:00:29,573 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-13 20:00:29,574 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 20:00:29,574 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 20:00:29,574 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-13 20:00:29,574 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 20:00:29,575 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 20:00:29,591 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-10-13 20:00:29,592 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [655013006] [2020-10-13 20:00:29,592 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 20:00:29,592 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-13 20:00:29,592 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [493063119] [2020-10-13 20:00:29,595 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-13 20:00:29,595 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 20:00:29,595 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-13 20:00:29,596 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-13 20:00:29,596 INFO L87 Difference]: Start difference. First operand 884 states and 1154 transitions. Second operand 5 states. [2020-10-13 20:00:30,914 WARN L193 SmtUtils]: Spent 1.30 s on a formula simplification that was a NOOP. DAG size: 430 [2020-10-13 20:00:47,405 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 20:00:47,405 INFO L93 Difference]: Finished difference Result 2014 states and 2694 transitions. [2020-10-13 20:00:47,406 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-13 20:00:47,406 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 55 [2020-10-13 20:00:47,407 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 20:00:47,416 INFO L225 Difference]: With dead ends: 2014 [2020-10-13 20:00:47,416 INFO L226 Difference]: Without dead ends: 1140 [2020-10-13 20:00:47,420 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-10-13 20:00:47,422 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1140 states. [2020-10-13 20:00:47,585 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1140 to 885. [2020-10-13 20:00:47,586 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 885 states. [2020-10-13 20:00:47,591 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 885 states to 885 states and 1155 transitions. [2020-10-13 20:00:47,591 INFO L78 Accepts]: Start accepts. Automaton has 885 states and 1155 transitions. Word has length 55 [2020-10-13 20:00:47,592 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 20:00:47,592 INFO L479 AbstractCegarLoop]: Abstraction has 885 states and 1155 transitions. [2020-10-13 20:00:47,592 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-13 20:00:47,592 INFO L276 IsEmpty]: Start isEmpty. Operand 885 states and 1155 transitions. [2020-10-13 20:00:47,596 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2020-10-13 20:00:47,596 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 20:00:47,596 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 20:00:47,597 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-13 20:00:47,597 INFO L427 AbstractCegarLoop]: === Iteration 3 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 20:00:47,597 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 20:00:47,597 INFO L82 PathProgramCache]: Analyzing trace with hash 1778897004, now seen corresponding path program 1 times [2020-10-13 20:00:47,597 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 20:00:47,598 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1726323777] [2020-10-13 20:00:47,598 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 20:00:47,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 20:00:47,730 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 20:00:47,849 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 20:00:47,979 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 20:00:48,089 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 20:00:48,290 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 20:00:52,676 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 20:00:52,676 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 79 [2020-10-13 20:00:52,677 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-13 20:00:52,677 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5002 [2020-10-13 20:00:52,677 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 20:00:52,677 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 20:00:52,677 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 34 [2020-10-13 20:00:52,678 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-13 20:00:52,678 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 20:00:53,825 WARN L193 SmtUtils]: Spent 1.06 s on a formula simplification that was a NOOP. DAG size: 427 [2020-10-13 20:00:53,827 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 20:00:53,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 20:00:53,847 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 20:00:53,954 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 20:00:53,954 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 20:00:53,955 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 20:00:53,955 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 113 [2020-10-13 20:00:53,955 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 20:00:53,955 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 20:00:53,955 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 20:00:53,956 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 20:00:53,956 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 20:00:53,997 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-13 20:00:53,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 20:00:54,001 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 20:00:54,003 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 20:00:54,003 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-13 20:00:54,003 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 20:00:54,004 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 20:00:54,004 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 20:00:54,004 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 20:00:54,004 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 20:00:54,004 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 20:00:54,005 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 20:00:54,008 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-10-13 20:00:54,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 20:00:54,014 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 20:00:54,017 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 20:00:54,018 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 20:00:54,018 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 20:00:54,018 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-13 20:00:54,018 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 20:00:54,019 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 20:00:54,019 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-13 20:00:54,019 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 20:00:54,019 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 20:00:54,049 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-10-13 20:00:54,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 20:00:54,056 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 20:00:54,061 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 20:00:54,061 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 20:00:54,062 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 20:00:54,062 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-13 20:00:54,062 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 20:00:54,062 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 20:00:54,063 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-13 20:00:54,063 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 20:00:54,063 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 20:00:54,069 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2020-10-13 20:00:54,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 20:00:54,075 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 20:00:54,080 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 20:00:54,080 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 20:00:54,080 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 20:00:54,080 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-13 20:00:54,081 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 20:00:54,081 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 20:00:54,081 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-13 20:00:54,081 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 20:00:54,081 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 20:00:54,097 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-10-13 20:00:54,097 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1726323777] [2020-10-13 20:00:54,098 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 20:00:54,098 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-13 20:00:54,098 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [80397154] [2020-10-13 20:00:54,099 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-13 20:00:54,099 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 20:00:54,099 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-13 20:00:54,099 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-13 20:00:54,100 INFO L87 Difference]: Start difference. First operand 885 states and 1155 transitions. Second operand 5 states. [2020-10-13 20:00:55,182 WARN L193 SmtUtils]: Spent 1.07 s on a formula simplification that was a NOOP. DAG size: 430 [2020-10-13 20:01:10,958 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 20:01:10,959 INFO L93 Difference]: Finished difference Result 2017 states and 2697 transitions. [2020-10-13 20:01:10,961 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-13 20:01:10,961 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 55 [2020-10-13 20:01:10,961 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 20:01:10,969 INFO L225 Difference]: With dead ends: 2017 [2020-10-13 20:01:10,969 INFO L226 Difference]: Without dead ends: 1142 [2020-10-13 20:01:10,973 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-10-13 20:01:10,975 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1142 states. [2020-10-13 20:01:11,127 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1142 to 886. [2020-10-13 20:01:11,127 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 886 states. [2020-10-13 20:01:11,131 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 886 states to 886 states and 1156 transitions. [2020-10-13 20:01:11,131 INFO L78 Accepts]: Start accepts. Automaton has 886 states and 1156 transitions. Word has length 55 [2020-10-13 20:01:11,132 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 20:01:11,132 INFO L479 AbstractCegarLoop]: Abstraction has 886 states and 1156 transitions. [2020-10-13 20:01:11,132 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-13 20:01:11,132 INFO L276 IsEmpty]: Start isEmpty. Operand 886 states and 1156 transitions. [2020-10-13 20:01:11,134 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2020-10-13 20:01:11,135 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 20:01:11,135 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 20:01:11,135 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-13 20:01:11,135 INFO L427 AbstractCegarLoop]: === Iteration 4 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 20:01:11,135 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 20:01:11,136 INFO L82 PathProgramCache]: Analyzing trace with hash -1814470418, now seen corresponding path program 1 times [2020-10-13 20:01:11,136 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 20:01:11,136 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1443713592] [2020-10-13 20:01:11,136 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 20:01:11,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 20:01:11,253 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 20:01:11,361 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 20:01:11,633 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 20:01:16,372 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 20:01:16,372 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 79 [2020-10-13 20:01:16,372 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-13 20:01:16,373 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5169 [2020-10-13 20:01:16,373 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 20:01:16,373 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 20:01:16,373 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 17 [2020-10-13 20:01:16,373 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-13 20:01:16,374 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 20:01:17,510 WARN L193 SmtUtils]: Spent 1.05 s on a formula simplification that was a NOOP. DAG size: 427 [2020-10-13 20:01:17,512 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 20:01:17,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 20:01:17,537 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 20:01:17,656 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 20:01:17,657 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 20:01:17,657 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 20:01:17,657 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 125 [2020-10-13 20:01:17,657 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 20:01:17,657 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 20:01:17,658 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 20:01:17,658 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 20:01:17,658 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 20:01:17,700 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-13 20:01:17,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 20:01:17,705 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 20:01:17,707 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 20:01:17,708 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-13 20:01:17,708 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 20:01:17,708 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 20:01:17,708 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 20:01:17,708 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 20:01:17,708 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 20:01:17,709 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 20:01:17,709 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 20:01:17,712 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-10-13 20:01:17,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 20:01:17,720 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 20:01:17,722 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 20:01:17,723 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 20:01:17,723 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 20:01:17,723 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-13 20:01:17,723 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 20:01:17,723 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 20:01:17,724 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-13 20:01:17,724 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 20:01:17,724 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 20:01:17,751 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-10-13 20:01:17,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 20:01:17,758 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 20:01:17,761 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 20:01:17,762 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 20:01:17,762 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 20:01:17,762 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-13 20:01:17,762 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 20:01:17,762 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 20:01:17,763 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-13 20:01:17,763 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 20:01:17,763 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 20:01:17,769 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2020-10-13 20:01:17,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 20:01:17,774 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 20:01:17,779 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 20:01:17,780 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 20:01:17,780 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 20:01:17,780 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-13 20:01:17,781 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 20:01:17,782 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 20:01:17,782 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-13 20:01:17,783 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 20:01:17,783 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 20:01:17,800 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-10-13 20:01:17,800 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1443713592] [2020-10-13 20:01:17,801 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 20:01:17,801 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-13 20:01:17,802 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1444239996] [2020-10-13 20:01:17,802 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-13 20:01:17,802 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 20:01:17,803 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-13 20:01:17,804 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-13 20:01:17,804 INFO L87 Difference]: Start difference. First operand 886 states and 1156 transitions. Second operand 5 states. [2020-10-13 20:01:18,913 WARN L193 SmtUtils]: Spent 1.10 s on a formula simplification that was a NOOP. DAG size: 430 [2020-10-13 20:01:20,349 WARN L193 SmtUtils]: Spent 1.10 s on a formula simplification that was a NOOP. DAG size: 432 [2020-10-13 20:01:26,197 WARN L193 SmtUtils]: Spent 1.08 s on a formula simplification that was a NOOP. DAG size: 429 [2020-10-13 20:01:47,504 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 20:01:47,505 INFO L93 Difference]: Finished difference Result 2740 states and 3726 transitions. [2020-10-13 20:01:47,507 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-13 20:01:47,507 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 55 [2020-10-13 20:01:47,507 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 20:01:47,519 INFO L225 Difference]: With dead ends: 2740 [2020-10-13 20:01:47,519 INFO L226 Difference]: Without dead ends: 1864 [2020-10-13 20:01:47,523 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 4.4s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2020-10-13 20:01:47,526 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1864 states. [2020-10-13 20:01:47,765 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1864 to 1414. [2020-10-13 20:01:47,765 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1414 states. [2020-10-13 20:01:47,772 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1414 states to 1414 states and 1873 transitions. [2020-10-13 20:01:47,773 INFO L78 Accepts]: Start accepts. Automaton has 1414 states and 1873 transitions. Word has length 55 [2020-10-13 20:01:47,773 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 20:01:47,773 INFO L479 AbstractCegarLoop]: Abstraction has 1414 states and 1873 transitions. [2020-10-13 20:01:47,773 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-13 20:01:47,773 INFO L276 IsEmpty]: Start isEmpty. Operand 1414 states and 1873 transitions. [2020-10-13 20:01:47,779 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2020-10-13 20:01:47,779 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 20:01:47,779 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 20:01:47,780 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-13 20:01:47,780 INFO L427 AbstractCegarLoop]: === Iteration 5 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 20:01:47,780 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 20:01:47,780 INFO L82 PathProgramCache]: Analyzing trace with hash 727859050, now seen corresponding path program 1 times [2020-10-13 20:01:47,781 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 20:01:47,781 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [293801868] [2020-10-13 20:01:47,781 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 20:01:47,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 20:01:47,896 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 20:01:48,258 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 20:01:52,975 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 20:01:52,975 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 126 [2020-10-13 20:01:52,975 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 20:01:52,976 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5126 [2020-10-13 20:01:52,976 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 20:01:52,976 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 20:01:52,976 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 59 [2020-10-13 20:01:52,976 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-13 20:01:52,976 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 20:01:54,494 WARN L193 SmtUtils]: Spent 1.42 s on a formula simplification that was a NOOP. DAG size: 427 [2020-10-13 20:01:54,497 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 20:01:54,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 20:01:54,512 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 20:01:54,581 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 20:01:54,582 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 20:01:54,582 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 20:01:54,582 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 73 [2020-10-13 20:01:54,582 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 20:01:54,582 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 20:01:54,583 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 20:01:54,583 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 20:01:54,583 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 20:01:54,619 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-13 20:01:54,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 20:01:54,623 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 20:01:54,624 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 20:01:54,624 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-13 20:01:54,624 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 20:01:54,625 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 20:01:54,625 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 20:01:54,625 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 20:01:54,625 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 20:01:54,625 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 20:01:54,626 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 20:01:54,664 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-13 20:01:54,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 20:01:54,679 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 20:01:54,732 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 20:01:54,733 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 38 [2020-10-13 20:01:54,733 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 20:01:54,733 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 60 [2020-10-13 20:01:54,734 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 20:01:54,734 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-13 20:01:54,734 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 20:01:54,734 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 34 [2020-10-13 20:01:54,734 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 20:01:54,842 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 20:01:54,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 20:01:54,850 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 20:01:54,876 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 20:01:54,877 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 30 [2020-10-13 20:01:54,877 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 20:01:54,877 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 30 [2020-10-13 20:01:54,878 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 20:01:54,881 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 20:01:54,882 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 20:01:54,882 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 20:01:54,882 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-10-13 20:01:54,897 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 20:01:54,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 20:01:54,907 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 20:01:54,910 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 20:01:54,910 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 20:01:54,911 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 20:01:54,911 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-13 20:01:54,911 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 20:01:54,912 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 20:01:54,912 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 20:01:54,912 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 20:01:54,913 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 20:01:54,969 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-13 20:01:54,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 20:01:54,976 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 20:01:54,981 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 20:01:54,981 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-13 20:01:54,982 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 20:01:54,982 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-13 20:01:54,982 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 20:01:54,982 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 20:01:54,982 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 20:01:54,983 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 20:01:54,983 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 20:01:55,027 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 20:01:55,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 20:01:55,034 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 20:01:55,037 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 20:01:55,037 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 20:01:55,038 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 20:01:55,038 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-13 20:01:55,038 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 20:01:55,038 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 20:01:55,038 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 20:01:55,039 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 20:01:55,039 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 20:01:55,044 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2020-10-13 20:01:55,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 20:01:55,050 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 20:01:55,056 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 20:01:55,056 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 20:01:55,056 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 20:01:55,057 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-13 20:01:55,057 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 20:01:55,057 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 20:01:55,058 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-13 20:01:55,058 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 20:01:55,058 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 20:01:55,101 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2020-10-13 20:01:55,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 20:01:55,113 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 20:01:55,117 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 20:01:55,117 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 20:01:55,118 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 20:01:55,118 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-13 20:01:55,118 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 20:01:55,119 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 20:01:55,119 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-13 20:01:55,119 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 20:01:55,119 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 20:01:55,124 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2020-10-13 20:01:55,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 20:01:55,130 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 20:01:55,134 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 20:01:55,135 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 20:01:55,135 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 20:01:55,135 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-13 20:01:55,135 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 20:01:55,136 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 20:01:55,136 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-13 20:01:55,136 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 20:01:55,136 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 20:01:55,171 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-10-13 20:01:55,172 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [293801868] [2020-10-13 20:01:55,172 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 20:01:55,172 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-10-13 20:01:55,173 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [698159354] [2020-10-13 20:01:55,174 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-13 20:01:55,175 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 20:01:55,175 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-13 20:01:55,176 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110 [2020-10-13 20:01:55,176 INFO L87 Difference]: Start difference. First operand 1414 states and 1873 transitions. Second operand 11 states. [2020-10-13 20:01:56,265 WARN L193 SmtUtils]: Spent 1.07 s on a formula simplification that was a NOOP. DAG size: 430 [2020-10-13 20:02:22,689 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 20:02:22,689 INFO L93 Difference]: Finished difference Result 3383 states and 4683 transitions. [2020-10-13 20:02:22,690 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-10-13 20:02:22,690 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 92 [2020-10-13 20:02:22,691 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 20:02:22,703 INFO L225 Difference]: With dead ends: 3383 [2020-10-13 20:02:22,703 INFO L226 Difference]: Without dead ends: 1939 [2020-10-13 20:02:22,710 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 2.9s TimeCoverageRelationStatistics Valid=76, Invalid=266, Unknown=0, NotChecked=0, Total=342 [2020-10-13 20:02:22,714 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1939 states. [2020-10-13 20:02:22,982 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1939 to 1353. [2020-10-13 20:02:22,982 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1353 states. [2020-10-13 20:02:22,989 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1353 states to 1353 states and 1804 transitions. [2020-10-13 20:02:22,990 INFO L78 Accepts]: Start accepts. Automaton has 1353 states and 1804 transitions. Word has length 92 [2020-10-13 20:02:22,990 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 20:02:22,990 INFO L479 AbstractCegarLoop]: Abstraction has 1353 states and 1804 transitions. [2020-10-13 20:02:22,990 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-13 20:02:22,991 INFO L276 IsEmpty]: Start isEmpty. Operand 1353 states and 1804 transitions. [2020-10-13 20:02:22,997 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2020-10-13 20:02:22,997 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 20:02:22,997 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 20:02:22,997 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-13 20:02:22,998 INFO L427 AbstractCegarLoop]: === Iteration 6 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 20:02:22,998 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 20:02:22,998 INFO L82 PathProgramCache]: Analyzing trace with hash -2000686031, now seen corresponding path program 1 times [2020-10-13 20:02:22,998 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 20:02:22,999 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1197583075] [2020-10-13 20:02:22,999 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 20:02:23,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 20:02:23,207 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 20:02:23,303 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 20:02:23,412 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 20:02:23,902 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 20:02:28,239 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 20:02:28,240 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 128 [2020-10-13 20:02:28,240 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-13 20:02:28,240 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5089 [2020-10-13 20:02:28,240 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 20:02:28,240 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 20:02:28,240 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 59 [2020-10-13 20:02:28,240 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-13 20:02:28,240 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 20:02:30,066 WARN L193 SmtUtils]: Spent 1.76 s on a formula simplification that was a NOOP. DAG size: 427 [2020-10-13 20:02:30,067 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 20:02:30,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 20:02:30,086 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 20:02:30,193 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 20:02:30,194 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 20:02:30,194 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 20:02:30,194 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 113 [2020-10-13 20:02:30,194 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 20:02:30,194 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 20:02:30,195 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 20:02:30,195 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 20:02:30,195 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 20:02:30,230 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-13 20:02:30,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 20:02:30,234 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 20:02:30,235 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 20:02:30,235 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-13 20:02:30,235 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 20:02:30,235 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 20:02:30,236 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 20:02:30,236 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 20:02:30,236 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 20:02:30,236 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 20:02:30,236 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 20:02:30,265 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-13 20:02:30,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 20:02:30,281 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 20:02:30,292 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 20:02:30,309 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 20:02:30,309 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 40 [2020-10-13 20:02:30,309 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 20:02:30,309 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 33 [2020-10-13 20:02:30,310 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 20:02:30,310 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 20:02:30,310 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 32 [2020-10-13 20:02:30,310 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-13 20:02:30,310 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 20:02:30,363 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 20:02:30,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 20:02:30,368 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 20:02:30,376 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 20:02:30,376 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 30 [2020-10-13 20:02:30,376 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 20:02:30,377 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-13 20:02:30,377 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 20:02:30,377 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 20:02:30,377 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 20:02:30,377 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 20:02:30,377 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 20:02:30,384 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 20:02:30,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 20:02:30,387 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 20:02:30,389 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 20:02:30,389 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 20:02:30,389 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 20:02:30,389 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 20:02:30,390 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 20:02:30,390 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 20:02:30,390 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 20:02:30,390 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 20:02:30,391 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 20:02:30,419 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-13 20:02:30,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 20:02:30,424 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 20:02:30,428 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 20:02:30,428 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-13 20:02:30,429 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 20:02:30,429 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-13 20:02:30,429 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 20:02:30,429 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 20:02:30,429 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 20:02:30,430 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 20:02:30,430 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 20:02:30,460 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 20:02:30,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 20:02:30,464 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 20:02:30,465 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 20:02:30,466 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 20:02:30,466 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 20:02:30,466 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 20:02:30,466 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 20:02:30,467 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 20:02:30,467 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 20:02:30,467 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 20:02:30,467 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 20:02:30,472 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2020-10-13 20:02:30,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 20:02:30,476 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 20:02:30,478 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 20:02:30,479 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 20:02:30,479 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 20:02:30,479 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 20:02:30,479 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 20:02:30,479 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 20:02:30,480 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-13 20:02:30,480 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 20:02:30,480 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 20:02:30,505 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-10-13 20:02:30,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 20:02:30,510 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 20:02:30,513 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 20:02:30,514 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 20:02:30,514 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 20:02:30,514 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-13 20:02:30,514 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 20:02:30,514 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 20:02:30,515 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-13 20:02:30,515 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 20:02:30,515 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 20:02:30,519 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2020-10-13 20:02:30,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 20:02:30,523 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 20:02:30,526 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 20:02:30,526 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 20:02:30,526 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 20:02:30,526 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-13 20:02:30,526 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 20:02:30,527 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 20:02:30,527 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-13 20:02:30,527 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 20:02:30,527 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 20:02:30,552 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-10-13 20:02:30,552 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1197583075] [2020-10-13 20:02:30,553 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 20:02:30,553 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-10-13 20:02:30,553 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [569827859] [2020-10-13 20:02:30,554 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-13 20:02:30,554 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 20:02:30,554 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-13 20:02:30,554 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2020-10-13 20:02:30,554 INFO L87 Difference]: Start difference. First operand 1353 states and 1804 transitions. Second operand 9 states. [2020-10-13 20:02:31,668 WARN L193 SmtUtils]: Spent 1.10 s on a formula simplification that was a NOOP. DAG size: 430 [2020-10-13 20:02:56,439 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 20:02:56,439 INFO L93 Difference]: Finished difference Result 3300 states and 4588 transitions. [2020-10-13 20:02:56,444 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-13 20:02:56,444 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 94 [2020-10-13 20:02:56,444 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 20:02:56,455 INFO L225 Difference]: With dead ends: 3300 [2020-10-13 20:02:56,456 INFO L226 Difference]: Without dead ends: 1957 [2020-10-13 20:02:56,460 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 3.0s TimeCoverageRelationStatistics Valid=50, Invalid=106, Unknown=0, NotChecked=0, Total=156 [2020-10-13 20:02:56,463 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1957 states. [2020-10-13 20:02:56,714 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1957 to 1354. [2020-10-13 20:02:56,714 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1354 states. [2020-10-13 20:02:56,726 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1354 states to 1354 states and 1805 transitions. [2020-10-13 20:02:56,727 INFO L78 Accepts]: Start accepts. Automaton has 1354 states and 1805 transitions. Word has length 94 [2020-10-13 20:02:56,729 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 20:02:56,729 INFO L479 AbstractCegarLoop]: Abstraction has 1354 states and 1805 transitions. [2020-10-13 20:02:56,729 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-13 20:02:56,729 INFO L276 IsEmpty]: Start isEmpty. Operand 1354 states and 1805 transitions. [2020-10-13 20:02:56,734 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2020-10-13 20:02:56,734 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 20:02:56,735 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 20:02:56,735 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-13 20:02:56,735 INFO L427 AbstractCegarLoop]: === Iteration 7 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 20:02:56,735 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 20:02:56,736 INFO L82 PathProgramCache]: Analyzing trace with hash 2002597386, now seen corresponding path program 1 times [2020-10-13 20:02:56,736 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 20:02:56,736 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [768590732] [2020-10-13 20:02:56,736 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 20:02:56,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 20:02:56,880 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 20:02:57,037 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 20:02:57,155 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 20:02:57,253 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 20:02:58,299 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 20:03:01,361 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 20:03:01,957 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 20:03:01,957 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 132 [2020-10-13 20:03:01,957 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-13 20:03:01,958 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5154 [2020-10-13 20:03:01,958 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 20:03:01,958 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 20:03:01,958 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 69 [2020-10-13 20:03:01,958 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-13 20:03:01,958 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 20:03:03,231 WARN L193 SmtUtils]: Spent 1.20 s on a formula simplification that was a NOOP. DAG size: 427 [2020-10-13 20:03:03,232 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 20:03:03,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 20:03:03,247 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 20:03:03,313 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 20:03:03,313 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 20:03:03,313 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 20:03:03,313 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 69 [2020-10-13 20:03:03,313 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 20:03:03,313 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 20:03:03,314 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 20:03:03,314 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 20:03:03,314 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 20:03:03,338 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-13 20:03:03,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 20:03:03,341 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 20:03:03,342 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 20:03:03,342 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-13 20:03:03,342 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 20:03:03,342 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 20:03:03,343 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 20:03:03,343 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 20:03:03,343 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 20:03:03,343 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 20:03:03,343 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 20:03:03,373 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-13 20:03:03,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 20:03:03,380 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 20:03:03,384 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 20:03:03,398 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 20:03:03,415 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 20:03:03,416 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 44 [2020-10-13 20:03:03,416 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-13 20:03:03,416 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 37 [2020-10-13 20:03:03,416 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 20:03:03,416 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 20:03:03,417 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 20:03:03,417 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 20:03:03,417 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 20:03:03,453 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 20:03:03,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 20:03:03,459 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 20:03:03,464 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 20:03:03,464 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 30 [2020-10-13 20:03:03,464 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 20:03:03,464 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-13 20:03:03,465 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 20:03:03,465 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 20:03:03,465 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 20:03:03,465 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 20:03:03,465 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 20:03:03,469 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 20:03:03,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 20:03:03,471 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 20:03:03,472 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 20:03:03,472 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 20:03:03,473 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 20:03:03,473 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 20:03:03,473 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 20:03:03,473 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 20:03:03,473 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 20:03:03,473 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 20:03:03,473 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 20:03:03,499 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-13 20:03:03,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 20:03:03,504 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 20:03:03,507 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 20:03:03,507 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-13 20:03:03,507 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 20:03:03,507 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-13 20:03:03,507 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 20:03:03,508 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 20:03:03,508 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 20:03:03,508 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 20:03:03,508 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 20:03:03,534 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 20:03:03,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 20:03:03,538 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 20:03:03,539 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 20:03:03,539 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 20:03:03,539 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 20:03:03,539 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 20:03:03,540 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 20:03:03,540 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 20:03:03,540 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 20:03:03,540 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 20:03:03,540 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 20:03:03,545 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2020-10-13 20:03:03,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 20:03:03,549 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 20:03:03,551 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 20:03:03,551 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 20:03:03,552 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 20:03:03,552 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 20:03:03,552 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 20:03:03,552 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 20:03:03,552 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-13 20:03:03,552 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 20:03:03,553 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 20:03:03,578 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2020-10-13 20:03:03,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 20:03:03,584 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 20:03:03,587 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 20:03:03,587 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 20:03:03,587 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 20:03:03,587 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-13 20:03:03,588 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 20:03:03,588 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 20:03:03,588 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-13 20:03:03,588 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 20:03:03,588 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 20:03:03,591 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2020-10-13 20:03:03,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 20:03:03,595 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 20:03:03,597 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 20:03:03,598 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 20:03:03,598 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 20:03:03,598 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 20:03:03,598 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 20:03:03,598 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 20:03:03,598 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-13 20:03:03,598 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 20:03:03,599 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 20:03:03,615 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2020-10-13 20:03:03,616 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [768590732] [2020-10-13 20:03:03,616 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 20:03:03,616 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-10-13 20:03:03,616 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1529034919] [2020-10-13 20:03:03,617 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-13 20:03:03,617 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 20:03:03,617 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-13 20:03:03,617 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2020-10-13 20:03:03,617 INFO L87 Difference]: Start difference. First operand 1354 states and 1805 transitions. Second operand 9 states. [2020-10-13 20:03:04,773 WARN L193 SmtUtils]: Spent 1.14 s on a formula simplification that was a NOOP. DAG size: 430 [2020-10-13 20:03:06,575 WARN L193 SmtUtils]: Spent 1.12 s on a formula simplification that was a NOOP. DAG size: 432 [2020-10-13 20:03:08,897 WARN L193 SmtUtils]: Spent 1.09 s on a formula simplification that was a NOOP. DAG size: 429 [2020-10-13 20:03:31,276 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 20:03:31,276 INFO L93 Difference]: Finished difference Result 3285 states and 4558 transitions. [2020-10-13 20:03:31,276 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-13 20:03:31,277 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 98 [2020-10-13 20:03:31,277 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 20:03:31,287 INFO L225 Difference]: With dead ends: 3285 [2020-10-13 20:03:31,288 INFO L226 Difference]: Without dead ends: 1941 [2020-10-13 20:03:31,293 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 4.8s TimeCoverageRelationStatistics Valid=88, Invalid=184, Unknown=0, NotChecked=0, Total=272 [2020-10-13 20:03:31,296 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1941 states. [2020-10-13 20:03:31,631 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1941 to 1354. [2020-10-13 20:03:31,632 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1354 states. [2020-10-13 20:03:31,636 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1354 states to 1354 states and 1804 transitions. [2020-10-13 20:03:31,637 INFO L78 Accepts]: Start accepts. Automaton has 1354 states and 1804 transitions. Word has length 98 [2020-10-13 20:03:31,637 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 20:03:31,638 INFO L479 AbstractCegarLoop]: Abstraction has 1354 states and 1804 transitions. [2020-10-13 20:03:31,638 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-13 20:03:31,638 INFO L276 IsEmpty]: Start isEmpty. Operand 1354 states and 1804 transitions. [2020-10-13 20:03:31,644 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2020-10-13 20:03:31,644 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 20:03:31,644 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 20:03:31,645 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-13 20:03:31,645 INFO L427 AbstractCegarLoop]: === Iteration 8 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 20:03:31,645 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 20:03:31,645 INFO L82 PathProgramCache]: Analyzing trace with hash 1176990676, now seen corresponding path program 1 times [2020-10-13 20:03:31,646 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 20:03:31,646 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [734283320] [2020-10-13 20:03:31,646 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 20:03:31,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 20:03:31,820 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 20:03:31,929 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 20:03:32,352 FATAL L256 erpolLogProxyWrapper]: Now shrinking...