/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 SingleStatement --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=WIDESTAMONGSMALL --traceabstraction.additional.smt.options tolerance=1.0 --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-64bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/ldv-linux-3.12-rc1/linux-3.12-rc1.tar.xz-144_2a-drivers--net--wireless--ti--wlcore--wlcore_spi.ko-entry_point.cil.out.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-25 09:39:31,588 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 09:39:31,592 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 09:39:31,635 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 09:39:31,636 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 09:39:31,643 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 09:39:31,645 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 09:39:31,649 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 09:39:31,652 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 09:39:31,654 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 09:39:31,656 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 09:39:31,657 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 09:39:31,657 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 09:39:31,660 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 09:39:31,662 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 09:39:31,665 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 09:39:31,666 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 09:39:31,667 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 09:39:31,669 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 09:39:31,677 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 09:39:31,680 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 09:39:31,681 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 09:39:31,682 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 09:39:31,683 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 09:39:31,700 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 09:39:31,700 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 09:39:31,700 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 09:39:31,701 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 09:39:31,704 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 09:39:31,705 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 09:39:31,705 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 09:39:31,708 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 09:39:31,709 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 09:39:31,710 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 09:39:31,712 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 09:39:31,712 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 09:39:31,713 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 09:39:31,713 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 09:39:31,713 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 09:39:31,714 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 09:39:31,715 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 09:39:31,716 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 [2020-09-25 09:39:31,760 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 09:39:31,760 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 09:39:31,762 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 09:39:31,763 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 09:39:31,763 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 09:39:31,763 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 09:39:31,764 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 09:39:31,764 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 09:39:31,764 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 09:39:31,764 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 09:39:31,765 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 09:39:31,765 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 09:39:31,765 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 09:39:31,766 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 09:39:31,766 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 09:39:31,766 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 09:39:31,767 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 09:39:31,767 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 09:39:31,767 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 09:39:31,767 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 09:39:31,767 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 09:39:31,768 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 09:39:31,768 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 09:39:31,768 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 09:39:31,768 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 09:39:31,768 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 09:39:31,769 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-09-25 09:39:31,769 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 -> SingleStatement Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=1.0;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=1.0;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=1.0;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=1.0;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=1.0;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=1.0;log-additional-information=true; [2020-09-25 09:39:32,235 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 09:39:32,252 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 09:39:32,256 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 09:39:32,258 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 09:39:32,259 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 09:39:32,260 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-linux-3.12-rc1/linux-3.12-rc1.tar.xz-144_2a-drivers--net--wireless--ti--wlcore--wlcore_spi.ko-entry_point.cil.out.i [2020-09-25 09:39:32,339 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/3513e9afe/4411770c10fe416aa786cf0da6da07a5/FLAGc090d90c1 [2020-09-25 09:39:33,244 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 09:39:33,245 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/ldv-linux-3.12-rc1/linux-3.12-rc1.tar.xz-144_2a-drivers--net--wireless--ti--wlcore--wlcore_spi.ko-entry_point.cil.out.i [2020-09-25 09:39:33,302 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/3513e9afe/4411770c10fe416aa786cf0da6da07a5/FLAGc090d90c1 [2020-09-25 09:39:33,691 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/3513e9afe/4411770c10fe416aa786cf0da6da07a5 [2020-09-25 09:39:33,704 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 09:39:33,710 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 09:39:33,711 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 09:39:33,711 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 09:39:33,716 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 09:39:33,717 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 09:39:33" (1/1) ... [2020-09-25 09:39:33,721 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2b821aed and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 09:39:33, skipping insertion in model container [2020-09-25 09:39:33,722 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 09:39:33" (1/1) ... [2020-09-25 09:39:33,731 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 09:39:33,860 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 09:39:35,266 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 09:39:35,286 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 09:39:35,576 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 09:39:35,663 INFO L208 MainTranslator]: Completed translation [2020-09-25 09:39:35,665 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 09:39:35 WrapperNode [2020-09-25 09:39:35,665 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 09:39:35,666 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 09:39:35,667 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 09:39:35,667 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 09:39:35,686 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 09:39:35" (1/1) ... [2020-09-25 09:39:35,686 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 09:39:35" (1/1) ... [2020-09-25 09:39:35,753 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 09:39:35" (1/1) ... [2020-09-25 09:39:35,754 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 09:39:35" (1/1) ... [2020-09-25 09:39:35,844 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 09:39:35" (1/1) ... [2020-09-25 09:39:35,868 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 09:39:35" (1/1) ... [2020-09-25 09:39:35,894 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 09:39:35" (1/1) ... [2020-09-25 09:39:35,923 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 09:39:35,923 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 09:39:35,927 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 09:39:35,927 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 09:39:35,928 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 09:39:35" (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 [2020-09-25 09:39:36,063 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 09:39:36,064 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 09:39:36,065 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2020-09-25 09:39:36,065 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2020-09-25 09:39:36,065 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add_tail [2020-09-25 09:39:36,066 INFO L138 BoogieDeclarations]: Found implementation of procedure __kmalloc [2020-09-25 09:39:36,067 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2020-09-25 09:39:36,067 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2020-09-25 09:39:36,068 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-09-25 09:39:36,069 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2020-09-25 09:39:36,069 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2020-09-25 09:39:36,070 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2020-09-25 09:39:36,070 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_ulong [2020-09-25 09:39:36,070 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2020-09-25 09:39:36,071 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2020-09-25 09:39:36,071 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2020-09-25 09:39:36,071 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_trap [2020-09-25 09:39:36,074 INFO L138 BoogieDeclarations]: Found implementation of procedure to_spi_device [2020-09-25 09:39:36,075 INFO L138 BoogieDeclarations]: Found implementation of procedure spi_set_drvdata [2020-09-25 09:39:36,075 INFO L138 BoogieDeclarations]: Found implementation of procedure spi_get_drvdata [2020-09-25 09:39:36,075 INFO L138 BoogieDeclarations]: Found implementation of procedure spi_unregister_driver [2020-09-25 09:39:36,075 INFO L138 BoogieDeclarations]: Found implementation of procedure spi_message_init [2020-09-25 09:39:36,076 INFO L138 BoogieDeclarations]: Found implementation of procedure spi_message_add_tail [2020-09-25 09:39:36,076 INFO L138 BoogieDeclarations]: Found implementation of procedure wl12xx_spi_reset [2020-09-25 09:39:36,076 INFO L138 BoogieDeclarations]: Found implementation of procedure wl12xx_spi_init [2020-09-25 09:39:36,077 INFO L138 BoogieDeclarations]: Found implementation of procedure wl12xx_spi_read_busy [2020-09-25 09:39:36,077 INFO L138 BoogieDeclarations]: Found implementation of procedure wl12xx_spi_raw_read [2020-09-25 09:39:36,077 INFO L138 BoogieDeclarations]: Found implementation of procedure wl12xx_spi_raw_write [2020-09-25 09:39:36,078 INFO L138 BoogieDeclarations]: Found implementation of procedure wl1271_probe [2020-09-25 09:39:36,078 INFO L138 BoogieDeclarations]: Found implementation of procedure wl1271_remove [2020-09-25 09:39:36,078 INFO L138 BoogieDeclarations]: Found implementation of procedure wl1271_spi_driver_init [2020-09-25 09:39:36,079 INFO L138 BoogieDeclarations]: Found implementation of procedure wl1271_spi_driver_exit [2020-09-25 09:39:36,079 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize_wl1271_if_operations_2 [2020-09-25 09:39:36,079 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize_spi_driver_1 [2020-09-25 09:39:36,079 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 09:39:36,080 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop___0 [2020-09-25 09:39:36,080 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_get_intfdata [2020-09-25 09:39:36,080 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_set_intfdata [2020-09-25 09:39:36,081 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_put_intf [2020-09-25 09:39:36,081 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_urb [2020-09-25 09:39:36,081 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_fill_int_urb [2020-09-25 09:39:36,081 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_fill_bulk_urb [2020-09-25 09:39:36,082 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_submit_urb [2020-09-25 09:39:36,082 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_get_dev [2020-09-25 09:39:36,082 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_put_dev [2020-09-25 09:39:36,082 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_get_interface [2020-09-25 09:39:36,083 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_put_interface [2020-09-25 09:39:36,083 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_serial_register [2020-09-25 09:39:36,083 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_serial_deregister [2020-09-25 09:39:36,083 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2020-09-25 09:39:36,084 INFO L138 BoogieDeclarations]: Found implementation of procedure __list_add [2020-09-25 09:39:36,084 INFO L138 BoogieDeclarations]: Found implementation of procedure crc7 [2020-09-25 09:39:36,084 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_err [2020-09-25 09:39:36,085 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_get_drvdata [2020-09-25 09:39:36,086 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_set_drvdata [2020-09-25 09:39:36,086 INFO L138 BoogieDeclarations]: Found implementation of procedure driver_unregister [2020-09-25 09:39:36,086 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize [2020-09-25 09:39:36,086 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_release_2 [2020-09-25 09:39:36,087 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_setup_2 [2020-09-25 09:39:36,087 INFO L138 BoogieDeclarations]: Found implementation of procedure platform_device_add [2020-09-25 09:39:36,087 INFO L138 BoogieDeclarations]: Found implementation of procedure platform_device_add_data [2020-09-25 09:39:36,087 INFO L138 BoogieDeclarations]: Found implementation of procedure platform_device_add_resources [2020-09-25 09:39:36,088 INFO L138 BoogieDeclarations]: Found implementation of procedure platform_device_alloc [2020-09-25 09:39:36,088 INFO L138 BoogieDeclarations]: Found implementation of procedure platform_device_put [2020-09-25 09:39:36,088 INFO L138 BoogieDeclarations]: Found implementation of procedure platform_device_unregister [2020-09-25 09:39:36,089 INFO L138 BoogieDeclarations]: Found implementation of procedure spi_register_driver [2020-09-25 09:39:36,089 INFO L138 BoogieDeclarations]: Found implementation of procedure spi_setup [2020-09-25 09:39:36,089 INFO L138 BoogieDeclarations]: Found implementation of procedure spi_sync [2020-09-25 09:39:36,089 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2020-09-25 09:39:36,090 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2020-09-25 09:39:36,090 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2020-09-25 09:39:36,091 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2020-09-25 09:39:36,091 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 09:39:36,093 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2020-09-25 09:39:36,093 INFO L130 BoogieDeclarations]: Found specification of procedure memset [2020-09-25 09:39:36,093 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2020-09-25 09:39:36,094 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2020-09-25 09:39:36,094 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-25 09:39:36,094 INFO L130 BoogieDeclarations]: Found specification of procedure __list_add [2020-09-25 09:39:36,095 INFO L130 BoogieDeclarations]: Found specification of procedure list_add_tail [2020-09-25 09:39:36,095 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-25 09:39:36,095 INFO L130 BoogieDeclarations]: Found specification of procedure driver_unregister [2020-09-25 09:39:36,097 INFO L130 BoogieDeclarations]: Found specification of procedure dev_get_drvdata [2020-09-25 09:39:36,097 INFO L130 BoogieDeclarations]: Found specification of procedure dev_set_drvdata [2020-09-25 09:39:36,097 INFO L130 BoogieDeclarations]: Found specification of procedure dev_err [2020-09-25 09:39:36,098 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2020-09-25 09:39:36,098 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2020-09-25 09:39:36,098 INFO L130 BoogieDeclarations]: Found specification of procedure __kmalloc [2020-09-25 09:39:36,098 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2020-09-25 09:39:36,098 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2020-09-25 09:39:36,099 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2020-09-25 09:39:36,099 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-25 09:39:36,099 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2020-09-25 09:39:36,100 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-25 09:39:36,157 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_size_t [2020-09-25 09:39:36,157 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_ulong [2020-09-25 09:39:36,157 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-09-25 09:39:36,157 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-09-25 09:39:36,158 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-25 09:39:36,158 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2020-09-25 09:39:36,158 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2020-09-25 09:39:36,158 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_ulong [2020-09-25 09:39:36,158 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2020-09-25 09:39:36,158 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2020-09-25 09:39:36,159 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_trap [2020-09-25 09:39:36,159 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize_wl1271_if_operations_2 [2020-09-25 09:39:36,159 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize_spi_driver_1 [2020-09-25 09:39:36,159 INFO L130 BoogieDeclarations]: Found specification of procedure crc7 [2020-09-25 09:39:36,159 INFO L130 BoogieDeclarations]: Found specification of procedure to_spi_device [2020-09-25 09:39:36,159 INFO L130 BoogieDeclarations]: Found specification of procedure spi_set_drvdata [2020-09-25 09:39:36,160 INFO L130 BoogieDeclarations]: Found specification of procedure spi_get_drvdata [2020-09-25 09:39:36,160 INFO L130 BoogieDeclarations]: Found specification of procedure spi_register_driver [2020-09-25 09:39:36,160 INFO L130 BoogieDeclarations]: Found specification of procedure spi_unregister_driver [2020-09-25 09:39:36,160 INFO L130 BoogieDeclarations]: Found specification of procedure spi_message_init [2020-09-25 09:39:36,160 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2020-09-25 09:39:36,160 INFO L130 BoogieDeclarations]: Found specification of procedure spi_message_add_tail [2020-09-25 09:39:36,160 INFO L130 BoogieDeclarations]: Found specification of procedure spi_setup [2020-09-25 09:39:36,161 INFO L130 BoogieDeclarations]: Found specification of procedure spi_sync [2020-09-25 09:39:36,161 INFO L130 BoogieDeclarations]: Found specification of procedure platform_device_unregister [2020-09-25 09:39:36,161 INFO L130 BoogieDeclarations]: Found specification of procedure platform_device_alloc [2020-09-25 09:39:36,161 INFO L130 BoogieDeclarations]: Found specification of procedure platform_device_add_resources [2020-09-25 09:39:36,161 INFO L130 BoogieDeclarations]: Found specification of procedure platform_device_add_data [2020-09-25 09:39:36,161 INFO L130 BoogieDeclarations]: Found specification of procedure platform_device_add [2020-09-25 09:39:36,162 INFO L130 BoogieDeclarations]: Found specification of procedure platform_device_put [2020-09-25 09:39:36,162 INFO L130 BoogieDeclarations]: Found specification of procedure wl12xx_spi_reset [2020-09-25 09:39:36,162 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-25 09:39:36,162 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-25 09:39:36,162 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-25 09:39:36,162 INFO L130 BoogieDeclarations]: Found specification of procedure wl12xx_spi_init [2020-09-25 09:39:36,162 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-25 09:39:36,163 INFO L130 BoogieDeclarations]: Found specification of procedure wl12xx_spi_read_busy [2020-09-25 09:39:36,163 INFO L130 BoogieDeclarations]: Found specification of procedure wl12xx_spi_raw_read [2020-09-25 09:39:36,163 INFO L130 BoogieDeclarations]: Found specification of procedure wl12xx_spi_raw_write [2020-09-25 09:39:36,163 INFO L130 BoogieDeclarations]: Found specification of procedure wl1271_probe [2020-09-25 09:39:36,163 INFO L130 BoogieDeclarations]: Found specification of procedure wl1271_remove [2020-09-25 09:39:36,163 INFO L130 BoogieDeclarations]: Found specification of procedure wl1271_spi_driver_init [2020-09-25 09:39:36,164 INFO L130 BoogieDeclarations]: Found specification of procedure wl1271_spi_driver_exit [2020-09-25 09:39:36,164 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize [2020-09-25 09:39:36,164 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_release_2 [2020-09-25 09:39:36,164 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2020-09-25 09:39:36,164 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_setup_2 [2020-09-25 09:39:36,164 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 09:39:36,164 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop___0 [2020-09-25 09:39:36,165 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_get_intfdata [2020-09-25 09:39:36,167 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_set_intfdata [2020-09-25 09:39:36,167 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_put_intf [2020-09-25 09:39:36,167 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_urb [2020-09-25 09:39:36,167 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_fill_int_urb [2020-09-25 09:39:36,168 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_fill_bulk_urb [2020-09-25 09:39:36,169 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_submit_urb [2020-09-25 09:39:36,170 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2020-09-25 09:39:36,170 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_get_dev [2020-09-25 09:39:36,170 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_put_dev [2020-09-25 09:39:36,170 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_get_interface [2020-09-25 09:39:36,170 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_put_interface [2020-09-25 09:39:36,170 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_serial_register [2020-09-25 09:39:36,171 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_serial_deregister [2020-09-25 09:39:36,171 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uchar [2020-09-25 09:39:36,171 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-25 09:39:36,172 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 09:39:36,172 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-25 09:39:36,172 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2020-09-25 09:39:36,173 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 09:39:37,517 INFO L732 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2020-09-25 09:39:38,449 INFO L732 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stop___0FINAL: assume true; [2020-09-25 09:39:38,818 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 09:39:38,819 INFO L295 CfgBuilder]: Removed 0 assume(true) statements. [2020-09-25 09:39:38,831 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 09:39:38 BoogieIcfgContainer [2020-09-25 09:39:38,831 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 09:39:38,833 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 09:39:38,833 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 09:39:38,836 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 09:39:38,837 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 09:39:33" (1/3) ... [2020-09-25 09:39:38,838 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1962b8e8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 09:39:38, skipping insertion in model container [2020-09-25 09:39:38,838 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 09:39:35" (2/3) ... [2020-09-25 09:39:38,838 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1962b8e8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 09:39:38, skipping insertion in model container [2020-09-25 09:39:38,838 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 09:39:38" (3/3) ... [2020-09-25 09:39:38,841 INFO L109 eAbstractionObserver]: Analyzing ICFG linux-3.12-rc1.tar.xz-144_2a-drivers--net--wireless--ti--wlcore--wlcore_spi.ko-entry_point.cil.out.i [2020-09-25 09:39:38,853 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 09:39:38,864 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 09:39:38,888 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 09:39:38,926 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 09:39:38,926 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 09:39:38,927 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 09:39:38,927 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 09:39:38,927 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 09:39:38,927 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 09:39:38,927 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 09:39:38,927 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 09:39:38,969 INFO L276 IsEmpty]: Start isEmpty. Operand 1099 states. [2020-09-25 09:39:38,987 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 191 [2020-09-25 09:39:38,987 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 09:39:38,989 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 09:39:38,990 INFO L427 AbstractCegarLoop]: === Iteration 1 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 09:39:38,997 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 09:39:38,998 INFO L82 PathProgramCache]: Analyzing trace with hash -126969232, now seen corresponding path program 1 times [2020-09-25 09:39:39,010 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 09:39:39,011 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [479642323] [2020-09-25 09:39:39,011 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 09:39:39,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:39:39,771 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:39:40,022 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:39:40,486 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:39:42,408 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:39:44,639 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:39:44,640 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 215 [2020-09-25 09:39:44,640 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 09:39:44,640 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5071 [2020-09-25 09:39:44,644 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 09:39:44,644 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 09:39:44,644 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 09:39:44,644 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 75 [2020-09-25 09:39:44,645 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 136 [2020-09-25 09:39:44,645 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-09-25 09:39:45,627 WARN L193 SmtUtils]: Spent 315.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 09:39:45,633 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 09:39:45,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:39:45,798 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:39:46,080 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:39:46,080 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 84 [2020-09-25 09:39:46,080 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:39:46,081 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 380 [2020-09-25 09:39:46,081 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 09:39:46,081 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 09:39:46,081 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 09:39:46,082 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:39:46,082 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 71 [2020-09-25 09:39:46,082 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:39:46,234 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2020-09-25 09:39:46,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:39:46,256 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:39:46,308 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:39:46,308 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-25 09:39:46,309 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:39:46,309 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 67 [2020-09-25 09:39:46,309 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 09:39:46,309 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 09:39:46,310 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 09:39:46,310 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:39:46,310 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-09-25 09:39:46,310 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:39:46,340 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2020-09-25 09:39:46,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:39:46,360 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:39:46,426 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:39:46,427 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-25 09:39:46,427 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:39:46,427 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 80 [2020-09-25 09:39:46,427 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 09:39:46,428 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 09:39:46,428 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 09:39:46,428 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:39:46,428 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-09-25 09:39:46,429 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:39:46,458 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2020-09-25 09:39:46,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:39:46,475 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:39:46,514 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:39:46,514 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 09:39:46,515 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:39:46,515 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 51 [2020-09-25 09:39:46,515 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 09:39:46,516 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 09:39:46,516 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 09:39:46,516 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:39:46,516 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 09:39:46,516 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:39:46,552 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2020-09-25 09:39:46,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:39:46,572 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:39:46,603 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:39:46,789 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:39:46,790 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 09:39:46,799 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 09:39:46,800 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 229 [2020-09-25 09:39:46,801 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 09:39:46,801 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 09:39:46,802 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-25 09:39:46,802 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-25 09:39:46,802 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 09:39:46,802 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:39:46,859 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2020-09-25 09:39:46,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:39:46,879 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:39:46,922 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:39:47,099 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:39:47,100 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 09:39:47,100 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 09:39:47,100 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 233 [2020-09-25 09:39:47,101 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 09:39:47,101 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 09:39:47,102 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-25 09:39:47,102 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-25 09:39:47,102 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 09:39:47,103 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 09:39:47,130 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 177 [2020-09-25 09:39:47,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:39:47,148 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:39:47,205 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:39:47,205 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-25 09:39:47,206 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:39:47,206 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 69 [2020-09-25 09:39:47,206 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 09:39:47,206 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 09:39:47,206 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 09:39:47,207 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:39:47,207 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-09-25 09:39:47,207 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:39:47,225 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 09:39:47,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:39:47,238 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:39:47,265 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:39:47,266 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 09:39:47,266 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:39:47,266 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 38 [2020-09-25 09:39:47,267 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 09:39:47,267 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 09:39:47,267 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 09:39:47,267 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:39:47,269 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 09:39:47,269 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 09:39:47,477 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2020-09-25 09:39:47,478 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [479642323] [2020-09-25 09:39:47,480 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 09:39:47,481 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-09-25 09:39:47,482 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [637112391] [2020-09-25 09:39:47,490 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-25 09:39:47,490 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 09:39:47,507 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-25 09:39:47,509 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-09-25 09:39:47,512 INFO L87 Difference]: Start difference. First operand 1099 states. Second operand 9 states. [2020-09-25 09:39:47,858 WARN L193 SmtUtils]: Spent 301.00 ms on a formula simplification that was a NOOP. DAG size: 196 [2020-09-25 09:39:48,873 WARN L193 SmtUtils]: Spent 359.00 ms on a formula simplification that was a NOOP. DAG size: 200 [2020-09-25 09:39:49,351 WARN L193 SmtUtils]: Spent 287.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 09:39:50,090 WARN L193 SmtUtils]: Spent 360.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-09-25 09:39:50,496 WARN L193 SmtUtils]: Spent 371.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-09-25 09:39:50,866 WARN L193 SmtUtils]: Spent 338.00 ms on a formula simplification that was a NOOP. DAG size: 196 [2020-09-25 09:39:51,240 WARN L193 SmtUtils]: Spent 337.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-25 09:39:58,125 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 09:39:58,125 INFO L93 Difference]: Finished difference Result 2165 states and 2512 transitions. [2020-09-25 09:39:58,126 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-09-25 09:39:58,128 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 190 [2020-09-25 09:39:58,130 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 09:39:58,158 INFO L225 Difference]: With dead ends: 2165 [2020-09-25 09:39:58,158 INFO L226 Difference]: Without dead ends: 1173 [2020-09-25 09:39:58,169 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 3.0s TimeCoverageRelationStatistics Valid=106, Invalid=236, Unknown=0, NotChecked=0, Total=342 [2020-09-25 09:39:58,193 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1173 states. [2020-09-25 09:39:58,362 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1173 to 1061. [2020-09-25 09:39:58,364 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1061 states. [2020-09-25 09:39:58,374 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1061 states to 1061 states and 1182 transitions. [2020-09-25 09:39:58,378 INFO L78 Accepts]: Start accepts. Automaton has 1061 states and 1182 transitions. Word has length 190 [2020-09-25 09:39:58,382 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 09:39:58,382 INFO L479 AbstractCegarLoop]: Abstraction has 1061 states and 1182 transitions. [2020-09-25 09:39:58,383 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-25 09:39:58,383 INFO L276 IsEmpty]: Start isEmpty. Operand 1061 states and 1182 transitions. [2020-09-25 09:39:58,402 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 200 [2020-09-25 09:39:58,402 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 09:39:58,403 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 09:39:58,406 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 09:39:58,406 INFO L427 AbstractCegarLoop]: === Iteration 2 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 09:39:58,406 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 09:39:58,407 INFO L82 PathProgramCache]: Analyzing trace with hash -978144985, now seen corresponding path program 1 times [2020-09-25 09:39:58,407 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 09:39:58,407 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [440721092] [2020-09-25 09:39:58,407 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 09:39:58,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:39:58,603 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:39:58,937 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:39:59,485 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:39:59,485 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 224 [2020-09-25 09:39:59,485 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 09:39:59,486 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 970 [2020-09-25 09:39:59,486 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 09:39:59,486 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 09:39:59,486 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 09:39:59,487 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 76 [2020-09-25 09:39:59,487 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 144 [2020-09-25 09:39:59,487 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:40:00,208 WARN L193 SmtUtils]: Spent 256.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 09:40:00,210 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 09:40:00,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:40:00,336 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:40:00,574 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:40:00,575 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 84 [2020-09-25 09:40:00,575 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:40:00,575 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 319 [2020-09-25 09:40:00,575 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 09:40:00,576 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 09:40:00,576 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 09:40:00,576 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:40:00,576 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 72 [2020-09-25 09:40:00,576 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:40:00,711 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2020-09-25 09:40:00,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:40:00,730 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:40:00,788 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:40:00,788 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-25 09:40:00,788 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:40:00,788 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 70 [2020-09-25 09:40:00,789 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 09:40:00,789 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 09:40:00,789 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 09:40:00,789 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:40:00,789 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-09-25 09:40:00,790 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:40:00,816 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2020-09-25 09:40:00,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:40:00,835 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:40:00,900 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:40:00,900 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-25 09:40:00,900 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:40:00,901 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 78 [2020-09-25 09:40:00,901 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 09:40:00,901 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 09:40:00,901 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 09:40:00,902 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:40:00,902 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-09-25 09:40:00,902 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:40:00,929 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2020-09-25 09:40:00,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:40:00,943 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:40:00,975 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:40:00,975 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 09:40:00,975 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:40:00,975 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 41 [2020-09-25 09:40:00,976 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 09:40:00,976 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 09:40:00,976 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 09:40:00,976 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:40:00,977 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 09:40:00,977 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:40:01,012 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2020-09-25 09:40:01,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:40:01,032 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:40:01,107 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:40:01,107 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-09-25 09:40:01,108 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:40:01,108 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 88 [2020-09-25 09:40:01,108 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 09:40:01,108 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 09:40:01,108 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 09:40:01,109 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:40:01,109 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-09-25 09:40:01,109 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:40:01,137 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2020-09-25 09:40:01,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:40:01,157 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:40:01,227 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:40:01,227 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-09-25 09:40:01,227 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:40:01,228 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 83 [2020-09-25 09:40:01,228 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 09:40:01,228 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 09:40:01,228 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 09:40:01,228 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:40:01,229 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-09-25 09:40:01,229 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:40:01,257 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 185 [2020-09-25 09:40:01,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:40:01,274 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:40:01,322 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:40:01,323 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-25 09:40:01,323 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:40:01,323 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 60 [2020-09-25 09:40:01,323 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 09:40:01,324 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 09:40:01,324 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 09:40:01,324 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:40:01,324 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-09-25 09:40:01,325 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:40:01,341 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 09:40:01,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:40:01,352 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:40:01,376 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:40:01,376 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 09:40:01,377 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:40:01,377 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 34 [2020-09-25 09:40:01,377 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 09:40:01,377 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 09:40:01,378 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 09:40:01,378 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:40:01,378 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 09:40:01,378 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:40:01,507 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2020-09-25 09:40:01,507 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [440721092] [2020-09-25 09:40:01,508 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 09:40:01,508 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-09-25 09:40:01,508 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [775979217] [2020-09-25 09:40:01,511 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-25 09:40:01,512 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 09:40:01,512 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-25 09:40:01,512 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2020-09-25 09:40:01,512 INFO L87 Difference]: Start difference. First operand 1061 states and 1182 transitions. Second operand 7 states. [2020-09-25 09:40:01,799 WARN L193 SmtUtils]: Spent 270.00 ms on a formula simplification that was a NOOP. DAG size: 196 [2020-09-25 09:40:02,590 WARN L193 SmtUtils]: Spent 318.00 ms on a formula simplification that was a NOOP. DAG size: 200 [2020-09-25 09:40:03,084 WARN L193 SmtUtils]: Spent 382.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 09:40:03,714 WARN L193 SmtUtils]: Spent 337.00 ms on a formula simplification that was a NOOP. DAG size: 194 [2020-09-25 09:40:09,192 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 09:40:09,192 INFO L93 Difference]: Finished difference Result 1174 states and 1321 transitions. [2020-09-25 09:40:09,193 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-09-25 09:40:09,193 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 199 [2020-09-25 09:40:09,194 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 09:40:09,202 INFO L225 Difference]: With dead ends: 1174 [2020-09-25 09:40:09,202 INFO L226 Difference]: Without dead ends: 1171 [2020-09-25 09:40:09,203 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=60, Invalid=122, Unknown=0, NotChecked=0, Total=182 [2020-09-25 09:40:09,206 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1171 states. [2020-09-25 09:40:09,275 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1171 to 1060. [2020-09-25 09:40:09,275 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1060 states. [2020-09-25 09:40:09,281 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1060 states to 1060 states and 1180 transitions. [2020-09-25 09:40:09,281 INFO L78 Accepts]: Start accepts. Automaton has 1060 states and 1180 transitions. Word has length 199 [2020-09-25 09:40:09,282 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 09:40:09,282 INFO L479 AbstractCegarLoop]: Abstraction has 1060 states and 1180 transitions. [2020-09-25 09:40:09,282 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-25 09:40:09,282 INFO L276 IsEmpty]: Start isEmpty. Operand 1060 states and 1180 transitions. [2020-09-25 09:40:09,285 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 201 [2020-09-25 09:40:09,285 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 09:40:09,285 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 09:40:09,286 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 09:40:09,286 INFO L427 AbstractCegarLoop]: === Iteration 3 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 09:40:09,286 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 09:40:09,286 INFO L82 PathProgramCache]: Analyzing trace with hash -258228913, now seen corresponding path program 1 times [2020-09-25 09:40:09,287 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 09:40:09,287 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [690252203] [2020-09-25 09:40:09,287 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 09:40:09,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:40:09,545 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:40:09,946 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:40:10,498 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:40:10,498 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 225 [2020-09-25 09:40:10,498 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 09:40:10,499 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1111 [2020-09-25 09:40:10,499 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 09:40:10,499 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 09:40:10,499 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 09:40:10,500 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 77 [2020-09-25 09:40:10,500 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 144 [2020-09-25 09:40:10,500 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:40:11,076 WARN L193 SmtUtils]: Spent 249.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 09:40:11,077 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 09:40:11,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:40:11,162 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:40:11,398 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:40:11,398 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 84 [2020-09-25 09:40:11,399 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:40:11,399 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 282 [2020-09-25 09:40:11,399 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 09:40:11,399 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 09:40:11,400 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 09:40:11,400 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:40:11,400 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 73 [2020-09-25 09:40:11,400 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:40:11,515 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2020-09-25 09:40:11,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:40:11,533 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:40:11,589 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:40:11,589 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-25 09:40:11,589 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:40:11,590 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 68 [2020-09-25 09:40:11,590 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 09:40:11,590 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 09:40:11,590 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 09:40:11,591 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:40:11,591 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-09-25 09:40:11,591 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:40:11,618 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2020-09-25 09:40:11,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:40:11,637 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:40:11,692 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:40:11,692 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-25 09:40:11,693 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:40:11,693 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 68 [2020-09-25 09:40:11,693 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 09:40:11,693 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 09:40:11,693 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 09:40:11,694 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:40:11,694 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-09-25 09:40:11,694 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:40:11,719 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2020-09-25 09:40:11,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:40:11,732 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:40:11,760 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:40:11,761 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 09:40:11,761 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:40:11,761 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 37 [2020-09-25 09:40:11,761 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 09:40:11,763 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 09:40:11,763 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 09:40:11,763 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:40:11,763 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 09:40:11,763 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 09:40:11,790 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2020-09-25 09:40:11,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:40:11,807 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:40:11,875 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:40:11,876 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-09-25 09:40:11,876 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:40:11,876 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 79 [2020-09-25 09:40:11,876 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 09:40:11,876 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 09:40:11,877 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 09:40:11,877 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:40:11,877 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-09-25 09:40:11,877 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:40:11,904 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2020-09-25 09:40:11,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:40:11,924 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:40:12,012 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:40:12,013 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-09-25 09:40:12,013 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:40:12,013 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 101 [2020-09-25 09:40:12,013 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 09:40:12,014 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 09:40:12,014 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 09:40:12,014 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:40:12,014 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-09-25 09:40:12,015 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:40:12,041 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 185 [2020-09-25 09:40:12,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:40:12,058 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:40:12,119 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:40:12,120 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-25 09:40:12,120 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:40:12,120 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 73 [2020-09-25 09:40:12,120 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 09:40:12,121 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 09:40:12,121 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 09:40:12,121 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:40:12,122 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-09-25 09:40:12,122 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:40:12,137 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 09:40:12,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:40:12,149 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:40:12,181 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:40:12,181 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 09:40:12,181 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:40:12,181 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 42 [2020-09-25 09:40:12,182 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 09:40:12,182 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 09:40:12,182 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 09:40:12,182 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:40:12,183 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 09:40:12,183 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:40:12,279 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2020-09-25 09:40:12,280 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [690252203] [2020-09-25 09:40:12,280 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 09:40:12,280 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-09-25 09:40:12,280 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [465710474] [2020-09-25 09:40:12,281 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-25 09:40:12,281 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 09:40:12,281 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-25 09:40:12,282 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-09-25 09:40:12,282 INFO L87 Difference]: Start difference. First operand 1060 states and 1180 transitions. Second operand 6 states. [2020-09-25 09:40:12,591 WARN L193 SmtUtils]: Spent 298.00 ms on a formula simplification that was a NOOP. DAG size: 196 [2020-09-25 09:40:13,406 WARN L193 SmtUtils]: Spent 336.00 ms on a formula simplification that was a NOOP. DAG size: 198 [2020-09-25 09:40:13,817 WARN L193 SmtUtils]: Spent 309.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 09:40:14,458 WARN L193 SmtUtils]: Spent 357.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-25 09:40:19,577 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 09:40:19,577 INFO L93 Difference]: Finished difference Result 1173 states and 1319 transitions. [2020-09-25 09:40:19,578 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-09-25 09:40:19,579 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 200 [2020-09-25 09:40:19,579 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 09:40:19,586 INFO L225 Difference]: With dead ends: 1173 [2020-09-25 09:40:19,586 INFO L226 Difference]: Without dead ends: 1170 [2020-09-25 09:40:19,587 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=52, Invalid=104, Unknown=0, NotChecked=0, Total=156 [2020-09-25 09:40:19,589 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1170 states. [2020-09-25 09:40:19,682 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1170 to 1059. [2020-09-25 09:40:19,682 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1059 states. [2020-09-25 09:40:19,688 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1059 states to 1059 states and 1178 transitions. [2020-09-25 09:40:19,688 INFO L78 Accepts]: Start accepts. Automaton has 1059 states and 1178 transitions. Word has length 200 [2020-09-25 09:40:19,689 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 09:40:19,689 INFO L479 AbstractCegarLoop]: Abstraction has 1059 states and 1178 transitions. [2020-09-25 09:40:19,689 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-25 09:40:19,689 INFO L276 IsEmpty]: Start isEmpty. Operand 1059 states and 1178 transitions. [2020-09-25 09:40:19,692 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 202 [2020-09-25 09:40:19,692 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 09:40:19,693 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 09:40:19,693 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-25 09:40:19,693 INFO L427 AbstractCegarLoop]: === Iteration 4 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 09:40:19,694 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 09:40:19,694 INFO L82 PathProgramCache]: Analyzing trace with hash 584337706, now seen corresponding path program 1 times [2020-09-25 09:40:19,694 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 09:40:19,695 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [667758236] [2020-09-25 09:40:19,695 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 09:40:19,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:40:19,870 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:40:20,192 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:40:20,698 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:40:20,698 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 226 [2020-09-25 09:40:20,699 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 09:40:20,699 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 915 [2020-09-25 09:40:20,699 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 09:40:20,699 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 09:40:20,700 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 09:40:20,700 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 72 [2020-09-25 09:40:20,700 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 150 [2020-09-25 09:40:20,700 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:40:21,304 WARN L193 SmtUtils]: Spent 258.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 09:40:21,305 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 09:40:21,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:40:21,389 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:40:21,612 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:40:21,613 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 84 [2020-09-25 09:40:21,613 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:40:21,613 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 269 [2020-09-25 09:40:21,613 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 09:40:21,614 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 09:40:21,614 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 09:40:21,614 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:40:21,614 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 68 [2020-09-25 09:40:21,614 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:40:21,731 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2020-09-25 09:40:21,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:40:21,747 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:40:21,788 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:40:21,789 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-25 09:40:21,789 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:40:21,789 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 51 [2020-09-25 09:40:21,789 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 09:40:21,790 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 09:40:21,790 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 09:40:21,790 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:40:21,790 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-09-25 09:40:21,790 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:40:21,820 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2020-09-25 09:40:21,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:40:21,840 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:40:21,907 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:40:21,908 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-25 09:40:21,908 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:40:21,909 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 81 [2020-09-25 09:40:21,909 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 09:40:21,909 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 09:40:21,910 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 09:40:21,910 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:40:21,910 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-09-25 09:40:21,910 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:40:21,937 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2020-09-25 09:40:21,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:40:21,953 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:40:21,988 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:40:21,989 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 09:40:21,989 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:40:21,989 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 47 [2020-09-25 09:40:21,990 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 09:40:21,990 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 09:40:21,993 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 09:40:21,993 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:40:21,994 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 09:40:21,994 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-09-25 09:40:22,032 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2020-09-25 09:40:22,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:40:22,054 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:40:22,120 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:40:22,121 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-09-25 09:40:22,121 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:40:22,122 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 81 [2020-09-25 09:40:22,122 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 09:40:22,122 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 09:40:22,123 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 09:40:22,123 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:40:22,123 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-09-25 09:40:22,124 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:40:22,153 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2020-09-25 09:40:22,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:40:22,174 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:40:22,249 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:40:22,249 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-09-25 09:40:22,250 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:40:22,250 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 88 [2020-09-25 09:40:22,250 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 09:40:22,251 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 09:40:22,251 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 09:40:22,252 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:40:22,252 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-09-25 09:40:22,252 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:40:22,283 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 185 [2020-09-25 09:40:22,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:40:22,301 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:40:22,366 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:40:22,367 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-25 09:40:22,367 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:40:22,368 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 78 [2020-09-25 09:40:22,368 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 09:40:22,368 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 09:40:22,369 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 09:40:22,369 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:40:22,369 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-09-25 09:40:22,370 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:40:22,388 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 09:40:22,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:40:22,401 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:40:22,425 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:40:22,426 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 09:40:22,426 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:40:22,426 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 35 [2020-09-25 09:40:22,426 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 09:40:22,427 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 09:40:22,427 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 09:40:22,427 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:40:22,427 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 09:40:22,427 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:40:22,486 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2020-09-25 09:40:22,488 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [667758236] [2020-09-25 09:40:22,488 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 09:40:22,489 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-09-25 09:40:22,489 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1938262745] [2020-09-25 09:40:22,489 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-25 09:40:22,490 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 09:40:22,490 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-25 09:40:22,494 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-09-25 09:40:22,494 INFO L87 Difference]: Start difference. First operand 1059 states and 1178 transitions. Second operand 6 states. [2020-09-25 09:40:22,833 WARN L193 SmtUtils]: Spent 329.00 ms on a formula simplification that was a NOOP. DAG size: 196 [2020-09-25 09:40:23,626 WARN L193 SmtUtils]: Spent 337.00 ms on a formula simplification that was a NOOP. DAG size: 198 [2020-09-25 09:40:24,040 WARN L193 SmtUtils]: Spent 312.00 ms on a formula simplification that was a NOOP. DAG size: 189