/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=BIGGEST --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-validator-v0.8/linux-stable-1dfa93a-1-100_1a-drivers--usb--serial--kobil_sct.ko-entry_point_ldv-val-v0.8.cil.out.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-adbd35c [2020-10-13 04:16:44,902 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-13 04:16:44,904 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-13 04:16:44,928 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-13 04:16:44,929 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-13 04:16:44,930 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-13 04:16:44,931 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-13 04:16:44,933 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-13 04:16:44,935 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-13 04:16:44,935 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-13 04:16:44,936 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-13 04:16:44,937 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-13 04:16:44,938 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-13 04:16:44,939 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-13 04:16:44,940 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-13 04:16:44,941 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-13 04:16:44,941 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-13 04:16:44,942 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-13 04:16:44,944 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-13 04:16:44,946 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-13 04:16:44,947 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-13 04:16:44,948 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-13 04:16:44,949 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-13 04:16:44,950 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-13 04:16:44,952 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-13 04:16:44,953 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-13 04:16:44,953 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-13 04:16:44,954 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-13 04:16:44,954 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-13 04:16:44,955 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-13 04:16:44,955 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-13 04:16:44,956 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-13 04:16:44,956 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-13 04:16:44,957 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-13 04:16:44,958 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-13 04:16:44,958 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-13 04:16:44,959 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-13 04:16:44,959 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-13 04:16:44,959 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-13 04:16:44,960 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-13 04:16:44,961 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-13 04:16:44,962 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 04:16:44,984 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-13 04:16:44,984 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-13 04:16:44,986 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-13 04:16:44,986 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-13 04:16:44,986 INFO L138 SettingsManager]: * Use SBE=true [2020-10-13 04:16:44,986 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-13 04:16:44,987 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-13 04:16:44,987 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-13 04:16:44,987 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-13 04:16:44,987 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-13 04:16:44,987 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-13 04:16:44,987 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-13 04:16:44,988 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-13 04:16:44,988 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-13 04:16:44,988 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-13 04:16:44,988 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-13 04:16:44,988 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-13 04:16:44,988 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-13 04:16:44,989 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-13 04:16:44,989 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-13 04:16:44,989 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-13 04:16:44,989 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-13 04:16:44,989 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-13 04:16:44,990 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-13 04:16:44,990 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-13 04:16:44,990 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-13 04:16:44,990 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-10-13 04:16:44,990 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=BIGGEST;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=BIGGEST;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=BIGGEST;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=BIGGEST;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=BIGGEST;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=BIGGEST;log-additional-information=true;unknown-allowed=true; [2020-10-13 04:16:45,317 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-13 04:16:45,340 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-13 04:16:45,345 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-13 04:16:45,347 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-13 04:16:45,347 INFO L275 PluginConnector]: CDTParser initialized [2020-10-13 04:16:45,348 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-validator-v0.8/linux-stable-1dfa93a-1-100_1a-drivers--usb--serial--kobil_sct.ko-entry_point_ldv-val-v0.8.cil.out.i [2020-10-13 04:16:45,405 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/62a6576ab/0a145026e1844ef1afb1969113b33d9f/FLAGac66a5f28 [2020-10-13 04:16:46,144 INFO L306 CDTParser]: Found 1 translation units. [2020-10-13 04:16:46,145 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/ldv-validator-v0.8/linux-stable-1dfa93a-1-100_1a-drivers--usb--serial--kobil_sct.ko-entry_point_ldv-val-v0.8.cil.out.i [2020-10-13 04:16:46,183 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/62a6576ab/0a145026e1844ef1afb1969113b33d9f/FLAGac66a5f28 [2020-10-13 04:16:46,688 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/62a6576ab/0a145026e1844ef1afb1969113b33d9f [2020-10-13 04:16:46,699 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-13 04:16:46,701 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-13 04:16:46,705 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-13 04:16:46,706 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-13 04:16:46,710 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-13 04:16:46,710 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 04:16:46" (1/1) ... [2020-10-13 04:16:46,714 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@76162525 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 04:16:46, skipping insertion in model container [2020-10-13 04:16:46,714 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 04:16:46" (1/1) ... [2020-10-13 04:16:46,723 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-13 04:16:46,831 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-13 04:16:48,031 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-13 04:16:48,081 INFO L203 MainTranslator]: Completed pre-run [2020-10-13 04:16:48,468 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-13 04:16:48,615 INFO L208 MainTranslator]: Completed translation [2020-10-13 04:16:48,615 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 04:16:48 WrapperNode [2020-10-13 04:16:48,616 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-13 04:16:48,616 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-13 04:16:48,617 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-13 04:16:48,617 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-13 04:16:48,630 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 04:16:48" (1/1) ... [2020-10-13 04:16:48,631 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 04:16:48" (1/1) ... [2020-10-13 04:16:48,673 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 04:16:48" (1/1) ... [2020-10-13 04:16:48,674 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 04:16:48" (1/1) ... [2020-10-13 04:16:48,771 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 04:16:48" (1/1) ... [2020-10-13 04:16:48,809 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 04:16:48" (1/1) ... [2020-10-13 04:16:48,838 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 04:16:48" (1/1) ... [2020-10-13 04:16:48,865 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-13 04:16:48,866 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-13 04:16:48,866 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-13 04:16:48,867 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-13 04:16:48,868 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 04:16:48" (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 04:16:48,976 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-13 04:16:48,977 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-13 04:16:48,977 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_tty_insert_flip_string_4 [2020-10-13 04:16:48,978 INFO L138 BoogieDeclarations]: Found implementation of procedure __kmalloc [2020-10-13 04:16:48,978 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2020-10-13 04:16:48,978 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2020-10-13 04:16:48,979 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-10-13 04:16:48,980 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2020-10-13 04:16:48,980 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2020-10-13 04:16:48,981 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_zalloc [2020-10-13 04:16:48,981 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_memset [2020-10-13 04:16:48,981 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2020-10-13 04:16:48,982 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_ulong [2020-10-13 04:16:48,982 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2020-10-13 04:16:48,982 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_dir_in [2020-10-13 04:16:48,983 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_dir_out [2020-10-13 04:16:48,983 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_xfer_int [2020-10-13 04:16:48,986 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_is_int_in [2020-10-13 04:16:48,987 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_is_int_out [2020-10-13 04:16:48,987 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_register [2020-10-13 04:16:48,987 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_fill_int_urb [2020-10-13 04:16:48,988 INFO L138 BoogieDeclarations]: Found implementation of procedure __create_pipe [2020-10-13 04:16:48,988 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_get_serial_port_data [2020-10-13 04:16:48,988 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_set_serial_port_data [2020-10-13 04:16:48,989 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_debug_data [2020-10-13 04:16:48,990 INFO L138 BoogieDeclarations]: Found implementation of procedure kobil_startup [2020-10-13 04:16:48,990 INFO L138 BoogieDeclarations]: Found implementation of procedure kobil_release [2020-10-13 04:16:48,990 INFO L138 BoogieDeclarations]: Found implementation of procedure kobil_init_termios [2020-10-13 04:16:48,990 INFO L138 BoogieDeclarations]: Found implementation of procedure kobil_open [2020-10-13 04:16:48,991 INFO L138 BoogieDeclarations]: Found implementation of procedure kobil_close [2020-10-13 04:16:48,991 INFO L138 BoogieDeclarations]: Found implementation of procedure kobil_read_int_callback [2020-10-13 04:16:48,991 INFO L138 BoogieDeclarations]: Found implementation of procedure kobil_write_callback [2020-10-13 04:16:48,991 INFO L138 BoogieDeclarations]: Found implementation of procedure kobil_write [2020-10-13 04:16:48,992 INFO L138 BoogieDeclarations]: Found implementation of procedure kobil_write_room [2020-10-13 04:16:48,992 INFO L138 BoogieDeclarations]: Found implementation of procedure kobil_tiocmget [2020-10-13 04:16:48,992 INFO L138 BoogieDeclarations]: Found implementation of procedure kobil_tiocmset [2020-10-13 04:16:48,992 INFO L138 BoogieDeclarations]: Found implementation of procedure kobil_set_termios [2020-10-13 04:16:48,993 INFO L138 BoogieDeclarations]: Found implementation of procedure kobil_ioctl [2020-10-13 04:16:48,993 INFO L138 BoogieDeclarations]: Found implementation of procedure kobil_init [2020-10-13 04:16:48,993 INFO L138 BoogieDeclarations]: Found implementation of procedure kobil_exit [2020-10-13 04:16:48,994 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize_usb_serial_driver_1 [2020-10-13 04:16:48,994 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_driver_2 [2020-10-13 04:16:48,996 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-13 04:16:48,996 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_tty_insert_flip_string_flags_3 [2020-10-13 04:16:48,997 INFO L138 BoogieDeclarations]: Found implementation of procedure tty_insert_flip_string [2020-10-13 04:16:48,997 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_tty_insert_flip_string_fixed_flag_5 [2020-10-13 04:16:48,997 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_register_driver_6 [2020-10-13 04:16:48,998 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_tty_port_tty_get_7 [2020-10-13 04:16:48,998 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_tty_flip_buffer_push_8 [2020-10-13 04:16:48,998 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_tty_get_baud_rate_9 [2020-10-13 04:16:48,998 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_tty_encode_baud_rate_10 [2020-10-13 04:16:48,999 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_deregister_11 [2020-10-13 04:16:48,999 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2020-10-13 04:16:49,000 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize [2020-10-13 04:16:49,000 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_handler_precall [2020-10-13 04:16:49,000 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_got_tty [2020-10-13 04:16:49,001 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_tty [2020-10-13 04:16:49,001 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_get_drvdata [2020-10-13 04:16:49,001 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_printk [2020-10-13 04:16:49,001 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_set_drvdata [2020-10-13 04:16:49,002 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2020-10-13 04:16:49,002 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_detach_1 [2020-10-13 04:16:49,002 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_probe_1 [2020-10-13 04:16:49,002 INFO L138 BoogieDeclarations]: Found implementation of procedure msleep [2020-10-13 04:16:49,003 INFO L138 BoogieDeclarations]: Found implementation of procedure printk [2020-10-13 04:16:49,003 INFO L138 BoogieDeclarations]: Found implementation of procedure tty_encode_baud_rate [2020-10-13 04:16:49,003 INFO L138 BoogieDeclarations]: Found implementation of procedure tty_flip_buffer_push [2020-10-13 04:16:49,003 INFO L138 BoogieDeclarations]: Found implementation of procedure tty_get_baud_rate [2020-10-13 04:16:49,004 INFO L138 BoogieDeclarations]: Found implementation of procedure tty_insert_flip_string_fixed_flag [2020-10-13 04:16:49,004 INFO L138 BoogieDeclarations]: Found implementation of procedure tty_insert_flip_string_flags [2020-10-13 04:16:49,004 INFO L138 BoogieDeclarations]: Found implementation of procedure tty_kref_put [2020-10-13 04:16:49,005 INFO L138 BoogieDeclarations]: Found implementation of procedure tty_port_tty_get [2020-10-13 04:16:49,005 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_alloc_urb [2020-10-13 04:16:49,006 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_control_msg [2020-10-13 04:16:49,007 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_deregister [2020-10-13 04:16:49,008 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_free_urb [2020-10-13 04:16:49,008 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_kill_urb [2020-10-13 04:16:49,008 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_poison_urb [2020-10-13 04:16:49,008 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_register_driver [2020-10-13 04:16:49,009 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_deregister [2020-10-13 04:16:49,009 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_disconnect [2020-10-13 04:16:49,009 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_probe [2020-10-13 04:16:49,009 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_register [2020-10-13 04:16:49,009 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_submit_urb [2020-10-13 04:16:49,010 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2020-10-13 04:16:49,010 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2020-10-13 04:16:49,010 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2020-10-13 04:16:49,011 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2020-10-13 04:16:49,012 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-10-13 04:16:49,012 INFO L130 BoogieDeclarations]: Found specification of procedure printk [2020-10-13 04:16:49,012 INFO L130 BoogieDeclarations]: Found specification of procedure memset [2020-10-13 04:16:49,012 INFO L130 BoogieDeclarations]: Found specification of procedure msleep [2020-10-13 04:16:49,013 INFO L130 BoogieDeclarations]: Found specification of procedure tty_kref_put [2020-10-13 04:16:49,013 INFO L130 BoogieDeclarations]: Found specification of procedure tty_flip_buffer_push [2020-10-13 04:16:49,013 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_tty_flip_buffer_push_8 [2020-10-13 04:16:49,013 INFO L130 BoogieDeclarations]: Found specification of procedure tty_get_baud_rate [2020-10-13 04:16:49,014 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_tty_get_baud_rate_9 [2020-10-13 04:16:49,014 INFO L130 BoogieDeclarations]: Found specification of procedure tty_encode_baud_rate [2020-10-13 04:16:49,014 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_tty_encode_baud_rate_10 [2020-10-13 04:16:49,014 INFO L130 BoogieDeclarations]: Found specification of procedure tty_port_tty_get [2020-10-13 04:16:49,014 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_tty_port_tty_get_7 [2020-10-13 04:16:49,015 INFO L130 BoogieDeclarations]: Found specification of procedure tty_insert_flip_string_flags [2020-10-13 04:16:49,015 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_tty_insert_flip_string_flags_3 [2020-10-13 04:16:49,015 INFO L130 BoogieDeclarations]: Found specification of procedure tty_insert_flip_string_fixed_flag [2020-10-13 04:16:49,015 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_tty_insert_flip_string_fixed_flag_5 [2020-10-13 04:16:49,016 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_tty_insert_flip_string_4 [2020-10-13 04:16:49,016 INFO L130 BoogieDeclarations]: Found specification of procedure tty_insert_flip_string [2020-10-13 04:16:49,016 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_got_tty [2020-10-13 04:16:49,016 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_tty [2020-10-13 04:16:49,017 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2020-10-13 04:16:49,017 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2020-10-13 04:16:49,017 INFO L130 BoogieDeclarations]: Found specification of procedure __kmalloc [2020-10-13 04:16:49,017 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2020-10-13 04:16:49,018 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2020-10-13 04:16:49,018 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2020-10-13 04:16:49,018 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-10-13 04:16:49,018 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2020-10-13 04:16:49,019 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-13 04:16:49,019 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_ulong [2020-10-13 04:16:49,019 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-13 04:16:49,020 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-10-13 04:16:49,020 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-10-13 04:16:49,021 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2020-10-13 04:16:49,021 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_zalloc [2020-10-13 04:16:49,021 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_memset [2020-10-13 04:16:49,022 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2020-10-13 04:16:49,022 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2020-10-13 04:16:49,023 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_ulong [2020-10-13 04:16:49,024 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2020-10-13 04:16:49,027 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize_usb_serial_driver_1 [2020-10-13 04:16:49,027 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_driver_2 [2020-10-13 04:16:49,027 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_dir_in [2020-10-13 04:16:49,028 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-13 04:16:49,028 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_dir_out [2020-10-13 04:16:49,028 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_xfer_int [2020-10-13 04:16:49,028 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_is_int_in [2020-10-13 04:16:49,029 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_is_int_out [2020-10-13 04:16:49,029 INFO L130 BoogieDeclarations]: Found specification of procedure dev_get_drvdata [2020-10-13 04:16:49,030 INFO L130 BoogieDeclarations]: Found specification of procedure dev_set_drvdata [2020-10-13 04:16:49,030 INFO L130 BoogieDeclarations]: Found specification of procedure dev_printk [2020-10-13 04:16:49,030 INFO L130 BoogieDeclarations]: Found specification of procedure usb_register_driver [2020-10-13 04:16:49,030 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_register_driver_6 [2020-10-13 04:16:49,030 INFO L130 BoogieDeclarations]: Found specification of procedure usb_register [2020-10-13 04:16:49,030 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-13 04:16:49,031 INFO L130 BoogieDeclarations]: Found specification of procedure usb_deregister [2020-10-13 04:16:49,039 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_deregister_11 [2020-10-13 04:16:49,040 INFO L130 BoogieDeclarations]: Found specification of procedure usb_fill_int_urb [2020-10-13 04:16:49,040 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-10-13 04:16:49,040 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-13 04:16:49,040 INFO L130 BoogieDeclarations]: Found specification of procedure usb_alloc_urb [2020-10-13 04:16:49,041 INFO L130 BoogieDeclarations]: Found specification of procedure usb_free_urb [2020-10-13 04:16:49,041 INFO L130 BoogieDeclarations]: Found specification of procedure usb_submit_urb [2020-10-13 04:16:49,041 INFO L130 BoogieDeclarations]: Found specification of procedure usb_kill_urb [2020-10-13 04:16:49,041 INFO L130 BoogieDeclarations]: Found specification of procedure usb_poison_urb [2020-10-13 04:16:49,041 INFO L130 BoogieDeclarations]: Found specification of procedure usb_control_msg [2020-10-13 04:16:49,042 INFO L130 BoogieDeclarations]: Found specification of procedure __create_pipe [2020-10-13 04:16:49,042 INFO L130 BoogieDeclarations]: Found specification of procedure usb_get_serial_port_data [2020-10-13 04:16:49,042 INFO L130 BoogieDeclarations]: Found specification of procedure usb_set_serial_port_data [2020-10-13 04:16:49,042 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_register [2020-10-13 04:16:49,043 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_deregister [2020-10-13 04:16:49,043 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_probe [2020-10-13 04:16:49,043 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_disconnect [2020-10-13 04:16:49,043 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_debug_data [2020-10-13 04:16:49,043 INFO L130 BoogieDeclarations]: Found specification of procedure kobil_startup [2020-10-13 04:16:49,044 INFO L130 BoogieDeclarations]: Found specification of procedure kobil_release [2020-10-13 04:16:49,044 INFO L130 BoogieDeclarations]: Found specification of procedure kobil_open [2020-10-13 04:16:49,044 INFO L130 BoogieDeclarations]: Found specification of procedure kobil_close [2020-10-13 04:16:49,044 INFO L130 BoogieDeclarations]: Found specification of procedure kobil_write [2020-10-13 04:16:49,045 INFO L130 BoogieDeclarations]: Found specification of procedure kobil_write_room [2020-10-13 04:16:49,045 INFO L130 BoogieDeclarations]: Found specification of procedure kobil_ioctl [2020-10-13 04:16:49,045 INFO L130 BoogieDeclarations]: Found specification of procedure kobil_tiocmget [2020-10-13 04:16:49,045 INFO L130 BoogieDeclarations]: Found specification of procedure kobil_tiocmset [2020-10-13 04:16:49,045 INFO L130 BoogieDeclarations]: Found specification of procedure kobil_read_int_callback [2020-10-13 04:16:49,046 INFO L130 BoogieDeclarations]: Found specification of procedure kobil_write_callback [2020-10-13 04:16:49,046 INFO L130 BoogieDeclarations]: Found specification of procedure kobil_set_termios [2020-10-13 04:16:49,046 INFO L130 BoogieDeclarations]: Found specification of procedure kobil_init_termios [2020-10-13 04:16:49,046 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-10-13 04:16:49,046 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy [2020-10-13 04:16:49,047 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2020-10-13 04:16:49,047 INFO L130 BoogieDeclarations]: Found specification of procedure kobil_init [2020-10-13 04:16:49,047 INFO L130 BoogieDeclarations]: Found specification of procedure kobil_exit [2020-10-13 04:16:49,047 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_probe_1 [2020-10-13 04:16:49,048 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_detach_1 [2020-10-13 04:16:49,048 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize [2020-10-13 04:16:49,049 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2020-10-13 04:16:49,049 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-13 04:16:49,049 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-13 04:16:49,049 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2020-10-13 04:16:49,049 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_handler_precall [2020-10-13 04:16:49,050 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uint [2020-10-13 04:16:49,050 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-10-13 04:16:49,050 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-13 04:16:49,050 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-13 04:16:49,050 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2020-10-13 04:16:49,051 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-13 04:16:49,051 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2020-10-13 04:16:49,051 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2020-10-13 04:16:49,051 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2020-10-13 04:16:49,052 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2020-10-13 04:16:50,205 INFO L732 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2020-10-13 04:16:57,057 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-13 04:16:57,057 INFO L295 CfgBuilder]: Removed 0 assume(true) statements. [2020-10-13 04:16:57,069 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 04:16:57 BoogieIcfgContainer [2020-10-13 04:16:57,069 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-13 04:16:57,071 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-13 04:16:57,071 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-13 04:16:57,075 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-13 04:16:57,075 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 04:16:46" (1/3) ... [2020-10-13 04:16:57,076 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2e2be3ee and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 04:16:57, skipping insertion in model container [2020-10-13 04:16:57,076 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 04:16:48" (2/3) ... [2020-10-13 04:16:57,077 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2e2be3ee and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 04:16:57, skipping insertion in model container [2020-10-13 04:16:57,077 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 04:16:57" (3/3) ... [2020-10-13 04:16:57,080 INFO L109 eAbstractionObserver]: Analyzing ICFG linux-stable-1dfa93a-1-100_1a-drivers--usb--serial--kobil_sct.ko-entry_point_ldv-val-v0.8.cil.out.i [2020-10-13 04:16:57,090 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-13 04:16:57,099 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-13 04:16:57,113 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-13 04:16:57,141 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-10-13 04:16:57,141 INFO L376 AbstractCegarLoop]: Hoare is true [2020-10-13 04:16:57,142 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-13 04:16:57,142 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-13 04:16:57,142 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-13 04:16:57,142 INFO L380 AbstractCegarLoop]: Difference is false [2020-10-13 04:16:57,142 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-13 04:16:57,142 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-13 04:16:57,189 INFO L276 IsEmpty]: Start isEmpty. Operand 787 states. [2020-10-13 04:16:57,229 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 174 [2020-10-13 04:16:57,230 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 04:16:57,231 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:16:57,232 INFO L427 AbstractCegarLoop]: === Iteration 1 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 04:16:57,238 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 04:16:57,239 INFO L82 PathProgramCache]: Analyzing trace with hash 1287486013, now seen corresponding path program 1 times [2020-10-13 04:16:57,249 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 04:16:57,249 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2039935380] [2020-10-13 04:16:57,249 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 04:16:57,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 04:16:58,110 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 04:16:58,454 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 04:16:58,689 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 04:16:58,884 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 04:16:59,082 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 04:16:59,444 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 04:17:03,506 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 04:17:03,507 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 239 [2020-10-13 04:17:03,507 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-13 04:17:03,507 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5617 [2020-10-13 04:17:03,510 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-13 04:17:03,510 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-13 04:17:03,510 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 109 [2020-10-13 04:17:03,510 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-13 04:17:03,511 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-13 04:17:06,534 WARN L193 SmtUtils]: Spent 2.79 s on a formula simplification that was a NOOP. DAG size: 712 [2020-10-13 04:17:06,538 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 04:17:06,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 04:17:06,576 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 04:17:07,032 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 04:17:07,032 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 04:17:07,033 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 04:17:07,033 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 469 [2020-10-13 04:17:07,033 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-13 04:17:07,033 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 04:17:07,034 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 04:17:07,034 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 04:17:07,034 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 04:17:07,126 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-13 04:17:07,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 04:17:07,134 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 04:17:07,141 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 04:17:07,162 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 04:17:07,162 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-10-13 04:17:07,162 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 04:17:07,163 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 32 [2020-10-13 04:17:07,163 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-13 04:17:07,163 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 04:17:07,163 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 14 [2020-10-13 04:17:07,164 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 04:17:07,164 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 04:17:07,188 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 04:17:07,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 04:17:07,194 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 04:17:07,199 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 04:17:07,199 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 04:17:07,199 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 04:17:07,199 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-13 04:17:07,199 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-13 04:17:07,200 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 04:17:07,200 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 04:17:07,200 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 04:17:07,200 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 04:17:07,208 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-13 04:17:07,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 04:17:07,213 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 04:17:07,216 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 04:17:07,216 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 04:17:07,216 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 04:17:07,216 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-13 04:17:07,217 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-13 04:17:07,217 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 04:17:07,217 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-10-13 04:17:07,217 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 04:17:07,218 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 04:17:07,242 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-10-13 04:17:07,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 04:17:07,248 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 04:17:07,252 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 04:17:07,252 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 04:17:07,253 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 04:17:07,253 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-13 04:17:07,253 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-13 04:17:07,253 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 04:17:07,253 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 04:17:07,254 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 04:17:07,254 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 04:17:07,261 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-10-13 04:17:07,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 04:17:07,267 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 04:17:07,269 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 04:17:07,273 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 04:17:07,273 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 04:17:07,273 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 04:17:07,274 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-13 04:17:07,274 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-13 04:17:07,274 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 04:17:07,274 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-10-13 04:17:07,274 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 04:17:07,275 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 04:17:07,280 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2020-10-13 04:17:07,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 04:17:07,288 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 04:17:07,294 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 04:17:07,316 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 04:17:07,316 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-10-13 04:17:07,316 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 04:17:07,316 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 33 [2020-10-13 04:17:07,317 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-13 04:17:07,317 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 04:17:07,317 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 04:17:07,317 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 04:17:07,318 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 04:17:07,330 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 04:17:07,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 04:17:07,336 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 04:17:07,340 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 04:17:07,340 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 04:17:07,341 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 04:17:07,341 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-13 04:17:07,341 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-13 04:17:07,341 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 04:17:07,341 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 04:17:07,342 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 04:17:07,342 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 04:17:07,350 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-13 04:17:07,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 04:17:07,357 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 04:17:07,359 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 04:17:07,362 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 04:17:07,362 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 04:17:07,362 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 04:17:07,363 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-13 04:17:07,363 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-13 04:17:07,363 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 04:17:07,364 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-10-13 04:17:07,364 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 04:17:07,364 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 04:17:07,371 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2020-10-13 04:17:07,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 04:17:07,381 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 04:17:07,393 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 04:17:07,417 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 04:17:07,418 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-10-13 04:17:07,418 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 04:17:07,419 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 42 [2020-10-13 04:17:07,419 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-13 04:17:07,419 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 04:17:07,420 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 14 [2020-10-13 04:17:07,420 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 04:17:07,420 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 04:17:07,431 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 04:17:07,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 04:17:07,439 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 04:17:07,443 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 04:17:07,443 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 04:17:07,444 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 04:17:07,444 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-13 04:17:07,444 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-13 04:17:07,444 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 04:17:07,445 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 04:17:07,445 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 04:17:07,445 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 04:17:07,454 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-13 04:17:07,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 04:17:07,460 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 04:17:07,463 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 04:17:07,464 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 04:17:07,464 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 04:17:07,464 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-13 04:17:07,465 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-13 04:17:07,465 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 04:17:07,465 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-10-13 04:17:07,465 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 04:17:07,465 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 04:17:07,502 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2020-10-13 04:17:07,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 04:17:07,511 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 04:17:07,520 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 04:17:07,582 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 04:17:07,583 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-13 04:17:07,583 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 04:17:07,583 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 77 [2020-10-13 04:17:07,583 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-13 04:17:07,587 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 04:17:07,588 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-13 04:17:07,588 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-13 04:17:07,588 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-10-13 04:17:07,686 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 04:17:07,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 04:17:07,698 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 04:17:07,711 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 04:17:07,712 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 04:17:07,712 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 04:17:07,712 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-13 04:17:07,712 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-13 04:17:07,713 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-13 04:17:07,713 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 04:17:07,713 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-13 04:17:07,713 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 04:17:07,789 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2020-10-13 04:17:07,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 04:17:07,804 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 04:17:07,879 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 04:17:07,879 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-13 04:17:07,879 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 04:17:07,880 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 83 [2020-10-13 04:17:07,880 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-13 04:17:07,880 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-13 04:17:07,880 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-13 04:17:07,880 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-10-13 04:17:07,881 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 04:17:08,043 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 04:17:08,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 04:17:08,067 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 04:17:08,106 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 04:17:08,107 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 04:17:08,107 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 04:17:08,107 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 49 [2020-10-13 04:17:08,107 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-13 04:17:08,107 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-13 04:17:08,108 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 04:17:08,108 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-13 04:17:08,108 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 04:17:08,185 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-10-13 04:17:08,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 04:17:08,204 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 04:17:08,216 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 04:17:08,285 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 04:17:08,285 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-13 04:17:08,286 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 04:17:08,286 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 94 [2020-10-13 04:17:08,286 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-13 04:17:08,286 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-13 04:17:08,286 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-13 04:17:08,287 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-10-13 04:17:08,287 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 04:17:08,304 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 04:17:08,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 04:17:08,321 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 04:17:08,377 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 04:17:08,378 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 04:17:08,378 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 04:17:08,378 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 65 [2020-10-13 04:17:08,378 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-13 04:17:08,379 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-13 04:17:08,379 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 04:17:08,379 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-13 04:17:08,380 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 04:17:08,399 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2020-10-13 04:17:08,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 04:17:08,414 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 04:17:08,424 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 04:17:08,488 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 04:17:08,488 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-13 04:17:08,489 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 04:17:08,489 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 83 [2020-10-13 04:17:08,489 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-13 04:17:08,489 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-13 04:17:08,489 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-13 04:17:08,490 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-10-13 04:17:08,490 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 04:17:08,507 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 04:17:08,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 04:17:08,522 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 04:17:08,550 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 04:17:08,551 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 04:17:08,551 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 04:17:08,551 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 36 [2020-10-13 04:17:08,551 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-13 04:17:08,551 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-13 04:17:08,552 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 04:17:08,552 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-13 04:17:08,552 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 04:17:08,564 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2020-10-13 04:17:08,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 04:17:08,577 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 04:17:08,589 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 04:17:08,646 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 04:17:08,647 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-13 04:17:08,647 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 04:17:08,648 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 77 [2020-10-13 04:17:08,648 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-13 04:17:08,648 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-13 04:17:08,649 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-13 04:17:08,649 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-10-13 04:17:08,649 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 04:17:08,764 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 04:17:08,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 04:17:08,785 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 04:17:08,815 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 04:17:08,815 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 04:17:08,815 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 04:17:08,815 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 38 [2020-10-13 04:17:08,816 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-13 04:17:08,816 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-13 04:17:08,816 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 04:17:08,816 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-13 04:17:08,816 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 04:17:08,832 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-10-13 04:17:08,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 04:17:08,842 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 04:17:08,859 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 04:17:08,911 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 04:17:08,912 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-13 04:17:08,912 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 04:17:08,912 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 74 [2020-10-13 04:17:08,912 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-13 04:17:08,913 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-13 04:17:08,913 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-13 04:17:08,913 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-10-13 04:17:08,913 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 04:17:08,956 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 04:17:08,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 04:17:08,971 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 04:17:08,998 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 04:17:08,999 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 04:17:08,999 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 04:17:08,999 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 35 [2020-10-13 04:17:08,999 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-13 04:17:08,999 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-13 04:17:09,000 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 04:17:09,000 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-13 04:17:09,000 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 04:17:09,012 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2020-10-13 04:17:09,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 04:17:09,023 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 04:17:09,034 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 04:17:09,035 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-10-13 04:17:09,035 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 04:17:09,035 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-13 04:17:09,035 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-13 04:17:09,035 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 04:17:09,036 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 20 [2020-10-13 04:17:09,036 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 04:17:09,036 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 04:17:09,044 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 04:17:09,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 04:17:09,051 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 04:17:09,059 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 04:17:09,059 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-13 04:17:09,059 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 04:17:09,059 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-13 04:17:09,060 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-13 04:17:09,060 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 04:17:09,060 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 04:17:09,060 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 04:17:09,061 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 04:17:09,068 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 04:17:09,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 04:17:09,073 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 04:17:09,077 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 04:17:09,078 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 04:17:09,078 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 04:17:09,078 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-13 04:17:09,079 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-13 04:17:09,079 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 04:17:09,079 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 04:17:09,080 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 04:17:09,080 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 04:17:09,243 INFO L134 CoverageAnalysis]: Checked inductivity of 156 backedges. 8 proven. 18 refuted. 0 times theorem prover too weak. 130 trivial. 0 not checked. [2020-10-13 04:17:09,244 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2039935380] [2020-10-13 04:17:09,246 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 04:17:09,246 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17] total 17 [2020-10-13 04:17:09,246 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1541825891] [2020-10-13 04:17:09,251 INFO L459 AbstractCegarLoop]: Interpolant automaton has 17 states [2020-10-13 04:17:09,252 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 04:17:09,266 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2020-10-13 04:17:09,268 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=234, Unknown=0, NotChecked=0, Total=272 [2020-10-13 04:17:09,272 INFO L87 Difference]: Start difference. First operand 787 states. Second operand 17 states. [2020-10-13 04:17:12,091 WARN L193 SmtUtils]: Spent 2.72 s on a formula simplification that was a NOOP. DAG size: 721 [2020-10-13 04:17:19,843 WARN L193 SmtUtils]: Spent 2.87 s on a formula simplification that was a NOOP. DAG size: 730 [2020-10-13 04:17:22,948 WARN L193 SmtUtils]: Spent 2.88 s on a formula simplification that was a NOOP. DAG size: 721 [2020-10-13 04:17:26,180 WARN L193 SmtUtils]: Spent 2.94 s on a formula simplification that was a NOOP. DAG size: 735 [2020-10-13 04:17:29,486 WARN L193 SmtUtils]: Spent 2.94 s on a formula simplification that was a NOOP. DAG size: 735 [2020-10-13 04:17:35,542 WARN L193 SmtUtils]: Spent 5.71 s on a formula simplification. DAG size of input: 741 DAG size of output: 726 [2020-10-13 04:17:38,383 WARN L193 SmtUtils]: Spent 2.75 s on a formula simplification that was a NOOP. DAG size: 724 [2020-10-13 04:17:41,304 WARN L193 SmtUtils]: Spent 2.81 s on a formula simplification that was a NOOP. DAG size: 726 [2020-10-13 04:17:47,276 WARN L193 SmtUtils]: Spent 5.76 s on a formula simplification. DAG size of input: 745 DAG size of output: 731 [2020-10-13 04:17:52,834 WARN L193 SmtUtils]: Spent 5.41 s on a formula simplification. DAG size of input: 732 DAG size of output: 717 [2020-10-13 04:17:55,882 WARN L193 SmtUtils]: Spent 2.73 s on a formula simplification that was a NOOP. DAG size: 725 [2020-10-13 04:18:01,622 WARN L193 SmtUtils]: Spent 5.64 s on a formula simplification. DAG size of input: 743 DAG size of output: 729 [2020-10-13 04:18:07,415 WARN L193 SmtUtils]: Spent 5.52 s on a formula simplification. DAG size of input: 734 DAG size of output: 720 [2020-10-13 04:18:12,067 WARN L193 SmtUtils]: Spent 2.76 s on a formula simplification that was a NOOP. DAG size: 727 [2020-10-13 04:18:33,725 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 04:18:33,726 INFO L93 Difference]: Finished difference Result 1860 states and 2664 transitions. [2020-10-13 04:18:33,727 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2020-10-13 04:18:33,729 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 173 [2020-10-13 04:18:33,729 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 04:18:33,757 INFO L225 Difference]: With dead ends: 1860 [2020-10-13 04:18:33,757 INFO L226 Difference]: Without dead ends: 1060 [2020-10-13 04:18:33,770 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 96 GetRequests, 62 SyntacticMatches, 1 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 212 ImplicationChecksByTransitivity, 58.0s TimeCoverageRelationStatistics Valid=250, Invalid=940, Unknown=0, NotChecked=0, Total=1190 [2020-10-13 04:18:33,791 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1060 states. [2020-10-13 04:18:34,083 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1060 to 768. [2020-10-13 04:18:34,084 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 768 states. [2020-10-13 04:18:34,090 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 768 states to 768 states and 1024 transitions. [2020-10-13 04:18:34,092 INFO L78 Accepts]: Start accepts. Automaton has 768 states and 1024 transitions. Word has length 173 [2020-10-13 04:18:34,092 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 04:18:34,092 INFO L479 AbstractCegarLoop]: Abstraction has 768 states and 1024 transitions. [2020-10-13 04:18:34,093 INFO L480 AbstractCegarLoop]: Interpolant automaton has 17 states. [2020-10-13 04:18:34,093 INFO L276 IsEmpty]: Start isEmpty. Operand 768 states and 1024 transitions. [2020-10-13 04:18:34,098 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 182 [2020-10-13 04:18:34,098 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 04:18:34,099 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2020-10-13 04:18:34,099 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-13 04:18:34,099 INFO L427 AbstractCegarLoop]: === Iteration 2 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 04:18:34,100 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 04:18:34,100 INFO L82 PathProgramCache]: Analyzing trace with hash -491314471, now seen corresponding path program 1 times [2020-10-13 04:18:34,100 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 04:18:34,100 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2137050864] [2020-10-13 04:18:34,101 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 04:18:34,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 04:18:34,450 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 04:18:34,818 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 04:18:35,151 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 04:18:35,422 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 04:18:36,336 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 04:18:39,413 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 04:18:39,414 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 249 [2020-10-13 04:18:39,414 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-13 04:18:39,414 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5124 [2020-10-13 04:18:39,414 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-13 04:18:39,415 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-13 04:18:39,415 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 38 [2020-10-13 04:18:39,415 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-13 04:18:39,415 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 04:18:42,240 WARN L193 SmtUtils]: Spent 2.65 s on a formula simplification that was a NOOP. DAG size: 712 [2020-10-13 04:18:42,243 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 04:18:42,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 04:18:42,319 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 04:18:42,800 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 04:18:42,800 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 04:18:42,800 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 04:18:42,801 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 514 [2020-10-13 04:18:42,801 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-13 04:18:42,801 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 04:18:42,801 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 04:18:42,801 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 04:18:42,802 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 04:18:42,943 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-13 04:18:42,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 04:18:42,952 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 04:18:42,964 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 04:18:42,964 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-10-13 04:18:42,964 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 04:18:42,964 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-13 04:18:42,965 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-13 04:18:42,965 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 04:18:42,965 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 04:18:42,965 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 04:18:42,965 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 04:18:42,995 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 04:18:42,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 04:18:43,000 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 04:18:43,003 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 04:18:43,003 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 04:18:43,004 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 04:18:43,004 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-13 04:18:43,004 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-13 04:18:43,004 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 04:18:43,004 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 04:18:43,005 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 04:18:43,005 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 04:18:43,011 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-13 04:18:43,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 04:18:43,016 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 04:18:43,018 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 04:18:43,018 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 04:18:43,018 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 04:18:43,019 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-13 04:18:43,019 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-13 04:18:43,019 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 04:18:43,019 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 04:18:43,019 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 04:18:43,020 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 04:18:43,056 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-10-13 04:18:43,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 04:18:43,064 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 04:18:43,072 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 04:18:43,072 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 04:18:43,072 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 04:18:43,073 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-13 04:18:43,073 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-13 04:18:43,073 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-13 04:18:43,073 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 04:18:43,073 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-13 04:18:43,074 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 04:18:43,111 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-10-13 04:18:43,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 04:18:43,118 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 04:18:43,127 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 04:18:43,127 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 04:18:43,127 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 04:18:43,128 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-13 04:18:43,128 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-13 04:18:43,128 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 04:18:43,128 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-13 04:18:43,128 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 04:18:43,129 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 04:18:43,188 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2020-10-13 04:18:43,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 04:18:43,199 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 04:18:43,211 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 04:18:43,211 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-10-13 04:18:43,211 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 04:18:43,211 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-13 04:18:43,212 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-13 04:18:43,212 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 04:18:43,212 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 20 [2020-10-13 04:18:43,212 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 04:18:43,212 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 04:18:43,220 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 04:18:43,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 04:18:43,225 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 04:18:43,228 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 04:18:43,229 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 04:18:43,229 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 04:18:43,229 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-13 04:18:43,229 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-13 04:18:43,230 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 04:18:43,230 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 04:18:43,230 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 04:18:43,231 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 04:18:43,236 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-13 04:18:43,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 04:18:43,241 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 04:18:43,243 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 04:18:43,243 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 04:18:43,243 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 04:18:43,244 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-13 04:18:43,244 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-13 04:18:43,244 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 04:18:43,244 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 04:18:43,245 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 04:18:43,245 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 04:18:43,250 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2020-10-13 04:18:43,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 04:18:43,262 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 04:18:43,275 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 04:18:43,276 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-10-13 04:18:43,276 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 04:18:43,276 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-10-13 04:18:43,276 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-13 04:18:43,276 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 04:18:43,277 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 20 [2020-10-13 04:18:43,277 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 04:18:43,277 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 04:18:43,285 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 04:18:43,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 04:18:43,290 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 04:18:43,293 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 04:18:43,293 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 04:18:43,294 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 04:18:43,294 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-13 04:18:43,294 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-13 04:18:43,294 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 04:18:43,294 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 04:18:43,295 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 04:18:43,295 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 04:18:43,300 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-13 04:18:43,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 04:18:43,304 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 04:18:43,306 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 04:18:43,306 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 04:18:43,306 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 04:18:43,307 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-13 04:18:43,307 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-13 04:18:43,307 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 04:18:43,307 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 04:18:43,307 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 04:18:43,308 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 04:18:43,348 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2020-10-13 04:18:43,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 04:18:43,359 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 04:18:43,373 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 04:18:43,373 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 24 [2020-10-13 04:18:43,373 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 04:18:43,374 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-10-13 04:18:43,374 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-13 04:18:43,374 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 04:18:43,374 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 21 [2020-10-13 04:18:43,374 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 04:18:43,375 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 04:18:43,382 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 04:18:43,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 04:18:43,388 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 04:18:43,395 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 04:18:43,395 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-13 04:18:43,396 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 04:18:43,396 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-13 04:18:43,396 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-13 04:18:43,396 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 04:18:43,396 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 04:18:43,397 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 04:18:43,397 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 04:18:43,405 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 04:18:43,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 04:18:43,410 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 04:18:43,413 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 04:18:43,413 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 04:18:43,413 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 04:18:43,413 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-13 04:18:43,414 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-13 04:18:43,414 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 04:18:43,414 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 04:18:43,414 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 04:18:43,414 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 04:18:43,456 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2020-10-13 04:18:43,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 04:18:43,467 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 04:18:43,474 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 04:18:43,539 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 04:18:43,539 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-13 04:18:43,539 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 04:18:43,539 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 78 [2020-10-13 04:18:43,540 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-13 04:18:43,540 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-13 04:18:43,540 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-13 04:18:43,540 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-10-13 04:18:43,540 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 04:18:43,655 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 04:18:43,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 04:18:43,667 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 04:18:43,706 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 04:18:43,707 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 04:18:43,707 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 04:18:43,707 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 46 [2020-10-13 04:18:43,707 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-13 04:18:43,708 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-13 04:18:43,708 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 04:18:43,708 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-13 04:18:43,708 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 04:18:43,840 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-10-13 04:18:43,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 04:18:43,852 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 04:18:43,861 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 04:18:43,921 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 04:18:43,922 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-13 04:18:43,922 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 04:18:43,922 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 76 [2020-10-13 04:18:43,922 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-13 04:18:43,923 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-13 04:18:43,923 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-13 04:18:43,923 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-10-13 04:18:43,923 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 04:18:43,984 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 04:18:43,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 04:18:43,996 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 04:18:44,042 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 04:18:44,042 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 04:18:44,043 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 04:18:44,043 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 53 [2020-10-13 04:18:44,043 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-13 04:18:44,043 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-13 04:18:44,044 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 04:18:44,044 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-13 04:18:44,044 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 04:18:44,056 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2020-10-13 04:18:44,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 04:18:44,069 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 04:18:44,092 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 04:18:44,126 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 04:18:44,126 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-13 04:18:44,127 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 04:18:44,127 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 64 [2020-10-13 04:18:44,127 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-13 04:18:44,127 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-13 04:18:44,127 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-13 04:18:44,128 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-10-13 04:18:44,128 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 04:18:44,138 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 04:18:44,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 04:18:44,150 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 04:18:44,192 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 04:18:44,192 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 04:18:44,193 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 04:18:44,193 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 48 [2020-10-13 04:18:44,193 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-13 04:18:44,193 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-13 04:18:44,194 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 04:18:44,194 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-13 04:18:44,194 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 04:18:44,206 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-13 04:18:44,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 04:18:44,217 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 04:18:44,224 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 04:18:44,291 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 04:18:44,291 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-13 04:18:44,291 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 04:18:44,292 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 79 [2020-10-13 04:18:44,292 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-13 04:18:44,292 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-13 04:18:44,292 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-13 04:18:44,292 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-10-13 04:18:44,293 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 04:18:44,304 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 04:18:44,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 04:18:44,317 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 04:18:44,358 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 04:18:44,358 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 04:18:44,359 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 04:18:44,359 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 47 [2020-10-13 04:18:44,359 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-13 04:18:44,359 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-13 04:18:44,359 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 04:18:44,360 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-13 04:18:44,360 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 04:18:44,370 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2020-10-13 04:18:44,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 04:18:44,381 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 04:18:44,388 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 04:18:44,448 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 04:18:44,448 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-13 04:18:44,448 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 04:18:44,449 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 72 [2020-10-13 04:18:44,449 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-13 04:18:44,449 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-13 04:18:44,449 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-13 04:18:44,450 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-10-13 04:18:44,450 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 04:18:44,461 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 04:18:44,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 04:18:44,473 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 04:18:44,512 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 04:18:44,512 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 04:18:44,512 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 04:18:44,513 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 44 [2020-10-13 04:18:44,513 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-13 04:18:44,513 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-13 04:18:44,513 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 04:18:44,513 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-13 04:18:44,514 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 04:18:44,523 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2020-10-13 04:18:44,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 04:18:44,532 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 04:18:44,540 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 04:18:44,540 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-10-13 04:18:44,540 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 04:18:44,540 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-13 04:18:44,541 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-13 04:18:44,541 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 04:18:44,541 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 20 [2020-10-13 04:18:44,541 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 04:18:44,541 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 04:18:44,548 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 04:18:44,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 04:18:44,553 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 04:18:44,558 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 04:18:44,558 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-13 04:18:44,559 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 04:18:44,559 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-13 04:18:44,559 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-13 04:18:44,559 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 04:18:44,559 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 04:18:44,560 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 04:18:44,560 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 04:18:44,565 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 04:18:44,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 04:18:44,571 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 04:18:44,574 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 04:18:44,574 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 04:18:44,574 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 04:18:44,575 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-13 04:18:44,575 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-13 04:18:44,575 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 04:18:44,575 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 04:18:44,576 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 04:18:44,576 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 04:18:44,674 INFO L134 CoverageAnalysis]: Checked inductivity of 207 backedges. 12 proven. 41 refuted. 0 times theorem prover too weak. 154 trivial. 0 not checked. [2020-10-13 04:18:44,675 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2137050864] [2020-10-13 04:18:44,675 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 04:18:44,675 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19] total 19 [2020-10-13 04:18:44,676 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [911948679] [2020-10-13 04:18:44,678 INFO L459 AbstractCegarLoop]: Interpolant automaton has 19 states [2020-10-13 04:18:44,678 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 04:18:44,678 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2020-10-13 04:18:44,679 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=300, Unknown=0, NotChecked=0, Total=342 [2020-10-13 04:18:44,679 INFO L87 Difference]: Start difference. First operand 768 states and 1024 transitions. Second operand 19 states. [2020-10-13 04:18:47,521 WARN L193 SmtUtils]: Spent 2.77 s on a formula simplification that was a NOOP. DAG size: 721 [2020-10-13 04:19:17,390 WARN L193 SmtUtils]: Spent 3.02 s on a formula simplification that was a NOOP. DAG size: 724 [2020-10-13 04:19:20,490 WARN L193 SmtUtils]: Spent 3.00 s on a formula simplification that was a NOOP. DAG size: 727 [2020-10-13 04:19:23,868 WARN L193 SmtUtils]: Spent 3.17 s on a formula simplification that was a NOOP. DAG size: 727 [2020-10-13 04:19:27,694 WARN L193 SmtUtils]: Spent 3.34 s on a formula simplification that was a NOOP. DAG size: 732 [2020-10-13 04:19:30,773 WARN L193 SmtUtils]: Spent 2.97 s on a formula simplification that was a NOOP. DAG size: 725 [2020-10-13 04:19:33,848 WARN L193 SmtUtils]: Spent 2.95 s on a formula simplification that was a NOOP. DAG size: 717 [2020-10-13 04:19:36,971 WARN L193 SmtUtils]: Spent 2.98 s on a formula simplification that was a NOOP. DAG size: 718 [2020-10-13 04:19:40,467 WARN L193 SmtUtils]: Spent 3.30 s on a formula simplification that was a NOOP. DAG size: 728 [2020-10-13 04:19:43,871 WARN L193 SmtUtils]: Spent 3.24 s on a formula simplification that was a NOOP. DAG size: 723 [2020-10-13 04:20:13,718 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 04:20:13,719 INFO L93 Difference]: Finished difference Result 1828 states and 2520 transitions. [2020-10-13 04:20:13,721 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-10-13 04:20:13,721 INFO L78 Accepts]: Start accepts. Automaton has 19 states. Word has length 181 [2020-10-13 04:20:13,722 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 04:20:13,734 INFO L225 Difference]: With dead ends: 1828 [2020-10-13 04:20:13,734 INFO L226 Difference]: Without dead ends: 1059 [2020-10-13 04:20:13,745 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 90 GetRequests, 61 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 115 ImplicationChecksByTransitivity, 34.8s TimeCoverageRelationStatistics Valid=158, Invalid=772, Unknown=0, NotChecked=0, Total=930 [2020-10-13 04:20:13,747 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1059 states. [2020-10-13 04:20:13,994 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1059 to 767. [2020-10-13 04:20:13,995 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 767 states. [2020-10-13 04:20:13,999 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 767 states to 767 states and 1022 transitions. [2020-10-13 04:20:14,000 INFO L78 Accepts]: Start accepts. Automaton has 767 states and 1022 transitions. Word has length 181 [2020-10-13 04:20:14,000 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 04:20:14,000 INFO L479 AbstractCegarLoop]: Abstraction has 767 states and 1022 transitions. [2020-10-13 04:20:14,001 INFO L480 AbstractCegarLoop]: Interpolant automaton has 19 states. [2020-10-13 04:20:14,001 INFO L276 IsEmpty]: Start isEmpty. Operand 767 states and 1022 transitions. [2020-10-13 04:20:14,004 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 195 [2020-10-13 04:20:14,005 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 04:20:14,005 INFO L422 BasicCegarLoop]: trace histogram [10, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2020-10-13 04:20:14,005 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-13 04:20:14,005 INFO L427 AbstractCegarLoop]: === Iteration 3 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 04:20:14,006 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 04:20:14,006 INFO L82 PathProgramCache]: Analyzing trace with hash -1355303210, now seen corresponding path program 1 times [2020-10-13 04:20:14,006 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 04:20:14,007 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1167566446] [2020-10-13 04:20:14,007 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 04:20:14,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 04:20:14,333 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 04:20:14,591 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 04:20:14,864 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 04:20:15,228 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 04:20:15,491 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 04:20:20,153 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 04:20:20,153 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 264 [2020-10-13 04:20:20,153 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-13 04:20:20,154 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5987 [2020-10-13 04:20:20,154 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-13 04:20:20,154 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-13 04:20:20,154 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 125 [2020-10-13 04:20:20,154 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-13 04:20:20,155 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 04:20:23,914 WARN L193 SmtUtils]: Spent 3.65 s on a formula simplification that was a NOOP. DAG size: 712 [2020-10-13 04:20:23,916 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 04:20:23,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 04:20:23,949 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 04:20:24,235 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 04:20:24,235 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 04:20:24,235 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 04:20:24,236 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 295 [2020-10-13 04:20:24,236 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-13 04:20:24,236 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 04:20:24,236 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 04:20:24,236 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 04:20:24,237 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 04:20:24,334 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-13 04:20:24,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 04:20:24,340 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 04:20:24,351 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 04:20:24,351 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-10-13 04:20:24,351 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 04:20:24,352 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-13 04:20:24,352 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-13 04:20:24,352 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 04:20:24,352 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 04:20:24,352 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 04:20:24,353 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 04:20:24,385 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 04:20:24,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 04:20:24,390 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 04:20:24,392 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 04:20:24,393 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 04:20:24,393 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 04:20:24,393 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-13 04:20:24,393 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-13 04:20:24,393 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 04:20:24,394 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 04:20:24,394 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 04:20:24,394 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 04:20:24,399 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-13 04:20:24,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 04:20:24,403 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 04:20:24,405 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 04:20:24,405 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 04:20:24,405 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 04:20:24,406 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-13 04:20:24,406 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-13 04:20:24,406 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 04:20:24,406 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 04:20:24,406 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 04:20:24,406 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 04:20:24,442 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-10-13 04:20:24,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 04:20:24,448 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 04:20:24,455 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 04:20:24,455 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-13 04:20:24,455 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 04:20:24,455 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-13 04:20:24,456 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-13 04:20:24,456 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 04:20:24,456 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 04:20:24,456 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 04:20:24,456 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 04:20:24,463 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 04:20:24,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 04:20:24,467 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 04:20:24,470 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 04:20:24,470 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 04:20:24,470 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 04:20:24,470 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-13 04:20:24,470 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-13 04:20:24,471 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 04:20:24,471 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 04:20:24,471 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 04:20:24,471 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 04:20:24,476 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2020-10-13 04:20:24,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 04:20:24,480 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 04:20:24,483 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 04:20:24,483 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 04:20:24,483 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 04:20:24,483 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-13 04:20:24,483 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-13 04:20:24,484 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 04:20:24,484 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 04:20:24,484 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 04:20:24,484 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 04:20:24,489 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2020-10-13 04:20:24,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 04:20:24,494 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 04:20:24,502 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 04:20:24,502 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-10-13 04:20:24,502 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 04:20:24,503 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-13 04:20:24,503 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-13 04:20:24,503 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 04:20:24,503 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 04:20:24,503 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 04:20:24,504 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 04:20:24,511 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 04:20:24,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 04:20:24,516 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 04:20:24,518 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 04:20:24,519 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 04:20:24,519 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 04:20:24,519 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-13 04:20:24,519 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-13 04:20:24,519 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 04:20:24,520 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 04:20:24,520 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 04:20:24,520 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 04:20:24,525 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-13 04:20:24,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 04:20:24,530 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 04:20:24,532 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 04:20:24,533 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 04:20:24,533 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 04:20:24,533 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-13 04:20:24,533 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-13 04:20:24,533 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 04:20:24,534 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 04:20:24,534 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 04:20:24,534 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 04:20:24,539 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2020-10-13 04:20:24,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 04:20:24,545 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 04:20:24,555 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 04:20:24,555 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-10-13 04:20:24,556 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 04:20:24,556 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-13 04:20:24,556 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-13 04:20:24,556 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 04:20:24,557 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 04:20:24,557 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 04:20:24,557 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 04:20:24,564 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 04:20:24,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 04:20:24,569 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 04:20:24,572 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 04:20:24,572 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 04:20:24,572 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 04:20:24,572 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-13 04:20:24,573 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-13 04:20:24,573 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 04:20:24,573 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 04:20:24,573 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 04:20:24,574 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 04:20:24,579 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-13 04:20:24,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 04:20:24,583 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 04:20:24,586 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 04:20:24,586 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 04:20:24,586 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 04:20:24,587 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-13 04:20:24,587 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-13 04:20:24,587 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 04:20:24,587 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 04:20:24,587 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 04:20:24,588 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 04:20:24,640 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2020-10-13 04:20:24,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 04:20:24,647 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 04:20:24,661 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 04:20:24,662 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 24 [2020-10-13 04:20:24,662 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 04:20:24,662 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-13 04:20:24,663 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-13 04:20:24,663 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 04:20:24,663 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 04:20:24,664 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 04:20:24,664 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 04:20:24,671 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 04:20:24,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 04:20:24,678 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 04:20:24,687 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 04:20:24,687 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-13 04:20:24,687 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 04:20:24,688 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-13 04:20:24,688 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-13 04:20:24,688 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 04:20:24,689 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 04:20:24,689 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 04:20:24,689 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 04:20:24,698 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 04:20:24,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 04:20:24,703 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 04:20:24,706 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 04:20:24,707 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 04:20:24,707 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 04:20:24,707 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-13 04:20:24,708 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-13 04:20:24,708 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 04:20:24,708 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 04:20:24,709 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 04:20:24,709 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 04:20:24,764 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-10-13 04:20:24,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 04:20:24,783 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 04:20:24,871 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 04:20:24,871 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-10-13 04:20:24,872 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 04:20:24,872 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 99 [2020-10-13 04:20:24,872 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-13 04:20:24,872 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-13 04:20:24,873 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-13 04:20:24,873 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-10-13 04:20:24,873 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 04:20:25,077 WARN L193 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 19 DAG size of output: 17 [2020-10-13 04:20:25,147 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 04:20:25,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 04:20:25,161 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 04:20:25,224 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 04:20:25,225 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 04:20:25,225 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 04:20:25,225 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 70 [2020-10-13 04:20:25,225 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-13 04:20:25,225 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-13 04:20:25,226 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 04:20:25,226 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-13 04:20:25,226 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 04:20:25,466 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2020-10-13 04:20:25,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 04:20:25,477 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 04:20:25,505 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 04:20:25,555 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 04:20:25,556 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-10-13 04:20:25,556 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 04:20:25,556 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 84 [2020-10-13 04:20:25,556 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-13 04:20:25,557 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-13 04:20:25,557 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-13 04:20:25,557 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-10-13 04:20:25,557 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 04:20:25,778 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 04:20:25,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 04:20:25,794 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 04:20:25,864 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 04:20:25,864 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 04:20:25,864 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 04:20:25,864 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 77 [2020-10-13 04:20:25,865 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-13 04:20:25,865 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-13 04:20:25,865 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 04:20:25,866 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-13 04:20:25,866 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 04:20:26,076 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2020-10-13 04:20:26,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 04:20:26,089 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 04:20:26,096 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 04:20:26,290 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 04:20:26,291 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-10-13 04:20:26,291 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 04:20:26,291 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 207 [2020-10-13 04:20:26,291 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-13 04:20:26,291 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-13 04:20:26,292 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-13 04:20:26,292 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-10-13 04:20:26,292 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 04:20:26,302 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 04:20:26,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 04:20:26,315 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 04:20:26,373 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 04:20:26,374 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 04:20:26,374 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 04:20:26,374 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 65 [2020-10-13 04:20:26,374 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-13 04:20:26,375 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-13 04:20:26,375 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 04:20:26,375 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-13 04:20:26,375 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 04:20:26,386 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2020-10-13 04:20:26,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 04:20:26,398 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 04:20:26,406 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 04:20:26,503 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 04:20:26,504 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-10-13 04:20:26,504 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 04:20:26,504 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 112 [2020-10-13 04:20:26,504 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-13 04:20:26,504 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-13 04:20:26,505 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-13 04:20:26,505 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-10-13 04:20:26,505 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 04:20:26,560 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 04:20:26,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 04:20:26,572 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 04:20:26,630 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 04:20:26,630 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 04:20:26,630 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 04:20:26,631 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 64 [2020-10-13 04:20:26,631 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-13 04:20:26,631 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-13 04:20:26,631 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 04:20:26,632 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-13 04:20:26,632 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 04:20:26,899 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2020-10-13 04:20:26,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 04:20:26,911 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 04:20:26,917 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 04:20:27,008 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 04:20:27,008 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-10-13 04:20:27,009 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 04:20:27,009 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 103 [2020-10-13 04:20:27,009 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-13 04:20:27,009 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-13 04:20:27,009 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-13 04:20:27,010 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-10-13 04:20:27,010 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 04:20:27,020 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 04:20:27,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 04:20:27,032 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 04:20:27,087 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 04:20:27,087 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-13 04:20:27,087 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 04:20:27,088 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 61 [2020-10-13 04:20:27,088 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-13 04:20:27,088 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-13 04:20:27,088 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 04:20:27,088 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-13 04:20:27,089 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 04:20:27,218 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2020-10-13 04:20:27,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 04:20:27,229 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 04:20:27,242 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 04:20:27,244 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-10-13 04:20:27,245 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 04:20:27,245 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-10-13 04:20:27,245 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-13 04:20:27,245 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 04:20:27,245 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 20 [2020-10-13 04:20:27,246 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 04:20:27,246 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 04:20:27,253 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 04:20:27,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 04:20:27,259 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 04:20:27,265 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 04:20:27,265 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-13 04:20:27,265 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 04:20:27,266 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-13 04:20:27,266 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-13 04:20:27,266 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 04:20:27,267 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 04:20:27,267 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 04:20:27,267 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 04:20:27,272 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-13 04:20:27,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 04:20:27,280 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 04:20:27,282 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 04:20:27,283 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 04:20:27,283 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 04:20:27,283 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-13 04:20:27,283 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-13 04:20:27,283 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 04:20:27,284 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 04:20:27,284 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 04:20:27,284 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 04:20:27,381 INFO L134 CoverageAnalysis]: Checked inductivity of 289 backedges. 25 proven. 98 refuted. 0 times theorem prover too weak. 166 trivial. 0 not checked. [2020-10-13 04:20:27,382 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1167566446] [2020-10-13 04:20:27,382 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 04:20:27,383 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [21] total 21 [2020-10-13 04:20:27,383 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [417006922] [2020-10-13 04:20:27,384 INFO L459 AbstractCegarLoop]: Interpolant automaton has 21 states [2020-10-13 04:20:27,385 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 04:20:27,385 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2020-10-13 04:20:27,386 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=360, Unknown=0, NotChecked=0, Total=420 [2020-10-13 04:20:27,387 INFO L87 Difference]: Start difference. First operand 767 states and 1022 transitions. Second operand 21 states. [2020-10-13 04:20:30,540 WARN L193 SmtUtils]: Spent 3.06 s on a formula simplification that was a NOOP. DAG size: 721