/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SequenceOfStatements --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=SMALLESTAMONGWIDE --traceabstraction.additional.smt.options tolerance=0.2 --traceabstraction.additional.smt.options log-additional-information=true --traceabstraction.additional.smt.options unknown-allowed=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-64bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/ldv-linux-3.12-rc1/linux-3.12-rc1.tar.xz-144_2a-drivers--staging--media--go7007--go7007-loader.ko-entry_point.cil.out.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-adbd35c [2020-10-15 06:59:19,880 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-15 06:59:19,883 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-15 06:59:19,913 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-15 06:59:19,914 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-15 06:59:19,922 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-15 06:59:19,923 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-15 06:59:19,925 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-15 06:59:19,927 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-15 06:59:19,929 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-15 06:59:19,930 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-15 06:59:19,932 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-15 06:59:19,932 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-15 06:59:19,936 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-15 06:59:19,938 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-15 06:59:19,940 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-15 06:59:19,941 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-15 06:59:19,942 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-15 06:59:19,943 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-15 06:59:19,951 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-15 06:59:19,952 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-15 06:59:19,954 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-15 06:59:19,955 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-15 06:59:19,956 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-15 06:59:19,966 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-15 06:59:19,966 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-15 06:59:19,966 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-15 06:59:19,969 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-15 06:59:19,970 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-15 06:59:19,970 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-15 06:59:19,971 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-15 06:59:19,971 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-15 06:59:19,972 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-15 06:59:19,972 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-15 06:59:19,975 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-15 06:59:19,975 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-15 06:59:19,976 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-15 06:59:19,976 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-15 06:59:19,977 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-15 06:59:19,977 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-15 06:59:19,979 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-15 06:59:19,979 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-64bit-Automizer_Default.epf [2020-10-15 06:59:20,016 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-15 06:59:20,016 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-15 06:59:20,018 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-15 06:59:20,018 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-15 06:59:20,018 INFO L138 SettingsManager]: * Use SBE=true [2020-10-15 06:59:20,019 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-15 06:59:20,019 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-15 06:59:20,019 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-15 06:59:20,019 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-15 06:59:20,019 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-15 06:59:20,020 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-15 06:59:20,021 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-15 06:59:20,021 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-15 06:59:20,021 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-15 06:59:20,021 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-15 06:59:20,022 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-15 06:59:20,022 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-15 06:59:20,022 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-15 06:59:20,022 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-15 06:59:20,022 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-15 06:59:20,022 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-15 06:59:20,023 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-15 06:59:20,023 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-15 06:59:20,023 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-15 06:59:20,023 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-15 06:59:20,023 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-15 06:59:20,024 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-10-15 06:59:20,024 INFO L138 SettingsManager]: * To the following directory=dump/ Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.2;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.2;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.2;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.2;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.2;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.2;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.2;log-additional-information=true;unknown-allowed=true; [2020-10-15 06:59:20,324 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-15 06:59:20,342 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-15 06:59:20,348 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-15 06:59:20,349 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-15 06:59:20,350 INFO L275 PluginConnector]: CDTParser initialized [2020-10-15 06:59:20,350 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-linux-3.12-rc1/linux-3.12-rc1.tar.xz-144_2a-drivers--staging--media--go7007--go7007-loader.ko-entry_point.cil.out.i [2020-10-15 06:59:20,405 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/633488d99/e8ab42ef9d024b1b877e92c871813d73/FLAG13c0d12a2 [2020-10-15 06:59:21,131 INFO L306 CDTParser]: Found 1 translation units. [2020-10-15 06:59:21,132 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/ldv-linux-3.12-rc1/linux-3.12-rc1.tar.xz-144_2a-drivers--staging--media--go7007--go7007-loader.ko-entry_point.cil.out.i [2020-10-15 06:59:21,166 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/633488d99/e8ab42ef9d024b1b877e92c871813d73/FLAG13c0d12a2 [2020-10-15 06:59:21,309 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/633488d99/e8ab42ef9d024b1b877e92c871813d73 [2020-10-15 06:59:21,317 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-15 06:59:21,318 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-15 06:59:21,320 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-15 06:59:21,320 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-15 06:59:21,324 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-15 06:59:21,325 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 06:59:21" (1/1) ... [2020-10-15 06:59:21,327 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@605f46bd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 06:59:21, skipping insertion in model container [2020-10-15 06:59:21,328 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 06:59:21" (1/1) ... [2020-10-15 06:59:21,335 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-15 06:59:21,414 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-15 06:59:22,235 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-15 06:59:22,281 INFO L203 MainTranslator]: Completed pre-run [2020-10-15 06:59:22,500 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-15 06:59:22,548 INFO L208 MainTranslator]: Completed translation [2020-10-15 06:59:22,549 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 06:59:22 WrapperNode [2020-10-15 06:59:22,549 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-15 06:59:22,550 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-15 06:59:22,550 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-15 06:59:22,550 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-15 06:59:22,565 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 06:59:22" (1/1) ... [2020-10-15 06:59:22,565 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 06:59:22" (1/1) ... [2020-10-15 06:59:22,591 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 06:59:22" (1/1) ... [2020-10-15 06:59:22,592 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 06:59:22" (1/1) ... [2020-10-15 06:59:22,643 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 06:59:22" (1/1) ... [2020-10-15 06:59:22,648 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 06:59:22" (1/1) ... [2020-10-15 06:59:22,655 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 06:59:22" (1/1) ... [2020-10-15 06:59:22,665 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-15 06:59:22,666 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-15 06:59:22,666 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-15 06:59:22,666 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-15 06:59:22,667 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 06:59:22" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-15 06:59:22,752 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-15 06:59:22,752 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-15 06:59:22,753 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2020-10-15 06:59:22,753 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-10-15 06:59:22,753 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2020-10-15 06:59:22,753 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2020-10-15 06:59:22,754 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2020-10-15 06:59:22,754 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_ulong [2020-10-15 06:59:22,755 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2020-10-15 06:59:22,755 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2020-10-15 06:59:22,756 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2020-10-15 06:59:22,756 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_trap [2020-10-15 06:59:22,756 INFO L138 BoogieDeclarations]: Found implementation of procedure go7007_loader_probe [2020-10-15 06:59:22,756 INFO L138 BoogieDeclarations]: Found implementation of procedure go7007_loader_disconnect [2020-10-15 06:59:22,756 INFO L138 BoogieDeclarations]: Found implementation of procedure go7007_loader_driver_init [2020-10-15 06:59:22,757 INFO L138 BoogieDeclarations]: Found implementation of procedure go7007_loader_driver_exit [2020-10-15 06:59:22,757 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_driver_1 [2020-10-15 06:59:22,759 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-15 06:59:22,759 INFO L138 BoogieDeclarations]: Found implementation of procedure interface_to_usbdev [2020-10-15 06:59:22,759 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_get_dev_2 [2020-10-15 06:59:22,759 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_set_intfdata_3 [2020-10-15 06:59:22,760 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_register_driver_4 [2020-10-15 06:59:22,760 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_deregister_5 [2020-10-15 06:59:22,760 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop___0 [2020-10-15 06:59:22,760 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_get_intfdata [2020-10-15 06:59:22,760 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_set_intfdata [2020-10-15 06:59:22,761 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_put_intf [2020-10-15 06:59:22,761 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_urb [2020-10-15 06:59:22,761 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_fill_int_urb [2020-10-15 06:59:22,761 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_fill_bulk_urb [2020-10-15 06:59:22,761 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_submit_urb [2020-10-15 06:59:22,761 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_interface_to_usbdev [2020-10-15 06:59:22,761 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_get_dev [2020-10-15 06:59:22,761 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_put_dev [2020-10-15 06:59:22,762 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_get_interface [2020-10-15 06:59:22,762 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_put_interface [2020-10-15 06:59:22,762 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_serial_register [2020-10-15 06:59:22,762 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_serial_deregister [2020-10-15 06:59:22,762 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2020-10-15 06:59:22,762 INFO L138 BoogieDeclarations]: Found implementation of procedure _dev_info [2020-10-15 06:59:22,763 INFO L138 BoogieDeclarations]: Found implementation of procedure cypress_load_firmware [2020-10-15 06:59:22,764 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_err [2020-10-15 06:59:22,764 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize [2020-10-15 06:59:22,764 INFO L138 BoogieDeclarations]: Found implementation of procedure release_firmware [2020-10-15 06:59:22,764 INFO L138 BoogieDeclarations]: Found implementation of procedure request_firmware [2020-10-15 06:59:22,764 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_deregister [2020-10-15 06:59:22,764 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_register_driver [2020-10-15 06:59:22,764 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2020-10-15 06:59:22,765 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2020-10-15 06:59:22,765 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-10-15 06:59:22,765 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2020-10-15 06:59:22,765 INFO L130 BoogieDeclarations]: Found specification of procedure dev_err [2020-10-15 06:59:22,765 INFO L130 BoogieDeclarations]: Found specification of procedure _dev_info [2020-10-15 06:59:22,766 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_set_intfdata_3 [2020-10-15 06:59:22,766 INFO L130 BoogieDeclarations]: Found specification of procedure interface_to_usbdev [2020-10-15 06:59:22,766 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_get_dev_2 [2020-10-15 06:59:22,766 INFO L130 BoogieDeclarations]: Found specification of procedure usb_register_driver [2020-10-15 06:59:22,766 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_register_driver_4 [2020-10-15 06:59:22,766 INFO L130 BoogieDeclarations]: Found specification of procedure usb_deregister [2020-10-15 06:59:22,767 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_deregister_5 [2020-10-15 06:59:22,767 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_interface_to_usbdev [2020-10-15 06:59:22,767 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_get_dev [2020-10-15 06:59:22,767 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_set_intfdata [2020-10-15 06:59:22,767 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-10-15 06:59:22,767 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2020-10-15 06:59:22,767 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-15 06:59:22,767 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_ulong [2020-10-15 06:59:22,768 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-15 06:59:22,768 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-10-15 06:59:22,768 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2020-10-15 06:59:22,769 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-10-15 06:59:22,769 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2020-10-15 06:59:22,769 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2020-10-15 06:59:22,770 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2020-10-15 06:59:22,770 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_ulong [2020-10-15 06:59:22,770 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2020-10-15 06:59:22,770 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2020-10-15 06:59:22,771 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_trap [2020-10-15 06:59:22,771 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_driver_1 [2020-10-15 06:59:22,771 INFO L130 BoogieDeclarations]: Found specification of procedure request_firmware [2020-10-15 06:59:22,771 INFO L130 BoogieDeclarations]: Found specification of procedure release_firmware [2020-10-15 06:59:22,771 INFO L130 BoogieDeclarations]: Found specification of procedure cypress_load_firmware [2020-10-15 06:59:22,771 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-15 06:59:22,771 INFO L130 BoogieDeclarations]: Found specification of procedure go7007_loader_probe [2020-10-15 06:59:22,771 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-15 06:59:22,771 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-15 06:59:22,772 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-10-15 06:59:22,772 INFO L130 BoogieDeclarations]: Found specification of procedure go7007_loader_disconnect [2020-10-15 06:59:22,772 INFO L130 BoogieDeclarations]: Found specification of procedure go7007_loader_driver_init [2020-10-15 06:59:22,772 INFO L130 BoogieDeclarations]: Found specification of procedure go7007_loader_driver_exit [2020-10-15 06:59:22,772 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize [2020-10-15 06:59:22,772 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2020-10-15 06:59:22,772 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-15 06:59:22,772 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop___0 [2020-10-15 06:59:22,773 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_get_intfdata [2020-10-15 06:59:22,773 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_put_intf [2020-10-15 06:59:22,773 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_urb [2020-10-15 06:59:22,773 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_fill_int_urb [2020-10-15 06:59:22,773 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_fill_bulk_urb [2020-10-15 06:59:22,773 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_submit_urb [2020-10-15 06:59:22,773 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2020-10-15 06:59:22,773 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_put_dev [2020-10-15 06:59:22,773 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_get_interface [2020-10-15 06:59:22,774 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_put_interface [2020-10-15 06:59:22,774 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_serial_register [2020-10-15 06:59:22,774 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_serial_deregister [2020-10-15 06:59:22,774 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-10-15 06:59:22,774 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2020-10-15 06:59:22,774 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-15 06:59:22,774 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-15 06:59:22,775 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2020-10-15 06:59:22,775 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-15 06:59:22,775 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-10-15 06:59:22,775 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-15 06:59:23,803 INFO L732 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2020-10-15 06:59:24,402 INFO L732 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stop___0FINAL: assume true; [2020-10-15 06:59:24,440 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-15 06:59:24,441 INFO L295 CfgBuilder]: Removed 0 assume(true) statements. [2020-10-15 06:59:24,446 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 06:59:24 BoogieIcfgContainer [2020-10-15 06:59:24,446 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-15 06:59:24,447 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-15 06:59:24,448 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-15 06:59:24,450 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-15 06:59:24,451 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.10 06:59:21" (1/3) ... [2020-10-15 06:59:24,452 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@78d346d5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 06:59:24, skipping insertion in model container [2020-10-15 06:59:24,452 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 06:59:22" (2/3) ... [2020-10-15 06:59:24,452 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@78d346d5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 06:59:24, skipping insertion in model container [2020-10-15 06:59:24,452 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 06:59:24" (3/3) ... [2020-10-15 06:59:24,454 INFO L109 eAbstractionObserver]: Analyzing ICFG linux-3.12-rc1.tar.xz-144_2a-drivers--staging--media--go7007--go7007-loader.ko-entry_point.cil.out.i [2020-10-15 06:59:24,464 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-15 06:59:24,472 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-15 06:59:24,485 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-15 06:59:24,511 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-10-15 06:59:24,511 INFO L376 AbstractCegarLoop]: Hoare is true [2020-10-15 06:59:24,512 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-15 06:59:24,512 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-15 06:59:24,512 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-15 06:59:24,512 INFO L380 AbstractCegarLoop]: Difference is false [2020-10-15 06:59:24,512 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-15 06:59:24,512 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-15 06:59:24,535 INFO L276 IsEmpty]: Start isEmpty. Operand 245 states. [2020-10-15 06:59:24,544 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2020-10-15 06:59:24,545 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 06:59:24,546 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 06:59:24,546 INFO L427 AbstractCegarLoop]: === Iteration 1 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 06:59:24,552 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 06:59:24,553 INFO L82 PathProgramCache]: Analyzing trace with hash 1549851085, now seen corresponding path program 1 times [2020-10-15 06:59:24,561 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 06:59:24,562 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1811587842] [2020-10-15 06:59:24,562 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 06:59:24,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 06:59:25,096 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 06:59:25,520 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 06:59:25,817 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 06:59:25,818 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 59 [2020-10-15 06:59:25,818 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-15 06:59:25,818 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 883 [2020-10-15 06:59:25,821 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 06:59:25,821 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 06:59:25,821 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 06:59:25,822 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-15 06:59:25,822 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 50 [2020-10-15 06:59:25,822 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-15 06:59:26,559 WARN L193 SmtUtils]: Spent 604.00 ms on a formula simplification that was a NOOP. DAG size: 238 [2020-10-15 06:59:26,560 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 06:59:26,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 06:59:26,615 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 06:59:26,759 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 06:59:26,759 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 06:59:26,759 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 06:59:26,760 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 169 [2020-10-15 06:59:26,760 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 06:59:26,760 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 06:59:26,760 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 06:59:26,761 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 06:59:26,761 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-15 06:59:26,761 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 06:59:26,858 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-15 06:59:26,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 06:59:26,876 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 06:59:26,884 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 06:59:26,885 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-15 06:59:26,885 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 06:59:26,885 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-15 06:59:26,885 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 06:59:26,885 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 06:59:26,886 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 06:59:26,886 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 06:59:26,886 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-15 06:59:26,886 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 06:59:26,893 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-15 06:59:26,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 06:59:26,898 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 06:59:26,902 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 06:59:26,903 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-15 06:59:26,903 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 06:59:26,903 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-15 06:59:26,903 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 06:59:26,903 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 06:59:26,904 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 06:59:26,904 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 06:59:26,904 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-15 06:59:26,904 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 06:59:26,918 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-10-15 06:59:26,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 06:59:26,927 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 06:59:26,938 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 06:59:26,938 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 20 [2020-10-15 06:59:26,938 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 06:59:26,939 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-15 06:59:26,939 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 06:59:26,939 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 06:59:26,939 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 06:59:26,939 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 06:59:26,940 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 17 [2020-10-15 06:59:26,940 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 06:59:26,946 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 06:59:26,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 06:59:26,952 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 06:59:26,957 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 06:59:26,957 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-15 06:59:26,957 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 06:59:26,958 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-15 06:59:26,958 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 06:59:26,958 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 06:59:26,958 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 06:59:26,959 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 06:59:26,959 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 06:59:26,959 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 06:59:26,965 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-15 06:59:26,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 06:59:26,970 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 06:59:26,972 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 06:59:26,973 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 06:59:26,973 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 06:59:26,973 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-15 06:59:26,973 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 06:59:26,974 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 06:59:26,974 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 06:59:26,974 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 06:59:26,974 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 06:59:26,975 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 06:59:26,989 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 06:59:26,990 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1811587842] [2020-10-15 06:59:26,992 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 06:59:26,993 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-15 06:59:26,993 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1497159525] [2020-10-15 06:59:26,999 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-15 06:59:26,999 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 06:59:27,013 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-15 06:59:27,014 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-10-15 06:59:27,016 INFO L87 Difference]: Start difference. First operand 245 states. Second operand 6 states. [2020-10-15 06:59:27,506 WARN L193 SmtUtils]: Spent 462.00 ms on a formula simplification that was a NOOP. DAG size: 241 [2020-10-15 06:59:28,082 WARN L193 SmtUtils]: Spent 479.00 ms on a formula simplification that was a NOOP. DAG size: 244 [2020-10-15 06:59:28,550 WARN L193 SmtUtils]: Spent 378.00 ms on a formula simplification that was a NOOP. DAG size: 241 [2020-10-15 06:59:30,116 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 06:59:30,117 INFO L93 Difference]: Finished difference Result 466 states and 604 transitions. [2020-10-15 06:59:30,119 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-15 06:59:30,121 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 39 [2020-10-15 06:59:30,121 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 06:59:30,145 INFO L225 Difference]: With dead ends: 466 [2020-10-15 06:59:30,146 INFO L226 Difference]: Without dead ends: 248 [2020-10-15 06:59:30,156 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=47, Invalid=85, Unknown=0, NotChecked=0, Total=132 [2020-10-15 06:59:30,177 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 248 states. [2020-10-15 06:59:30,274 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 248 to 189. [2020-10-15 06:59:30,275 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 189 states. [2020-10-15 06:59:30,278 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 189 states to 189 states and 227 transitions. [2020-10-15 06:59:30,279 INFO L78 Accepts]: Start accepts. Automaton has 189 states and 227 transitions. Word has length 39 [2020-10-15 06:59:30,280 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 06:59:30,280 INFO L479 AbstractCegarLoop]: Abstraction has 189 states and 227 transitions. [2020-10-15 06:59:30,280 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-15 06:59:30,280 INFO L276 IsEmpty]: Start isEmpty. Operand 189 states and 227 transitions. [2020-10-15 06:59:30,283 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2020-10-15 06:59:30,283 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 06:59:30,284 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 06:59:30,284 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-15 06:59:30,284 INFO L427 AbstractCegarLoop]: === Iteration 2 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 06:59:30,285 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 06:59:30,285 INFO L82 PathProgramCache]: Analyzing trace with hash 800558865, now seen corresponding path program 1 times [2020-10-15 06:59:30,285 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 06:59:30,285 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1834643847] [2020-10-15 06:59:30,286 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 06:59:30,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 06:59:30,385 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 06:59:30,542 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 06:59:31,144 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 06:59:31,144 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 60 [2020-10-15 06:59:31,144 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-15 06:59:31,145 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 792 [2020-10-15 06:59:31,145 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 06:59:31,145 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 06:59:31,145 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-15 06:59:31,145 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-15 06:59:31,146 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 51 [2020-10-15 06:59:31,146 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 06:59:31,593 WARN L193 SmtUtils]: Spent 376.00 ms on a formula simplification that was a NOOP. DAG size: 238 [2020-10-15 06:59:31,594 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 06:59:31,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 06:59:31,641 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 06:59:31,726 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 06:59:31,726 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 06:59:31,727 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 06:59:31,727 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 105 [2020-10-15 06:59:31,727 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 06:59:31,727 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 06:59:31,728 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 06:59:31,728 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 06:59:31,728 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-15 06:59:31,728 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 06:59:31,774 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-15 06:59:31,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 06:59:31,780 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 06:59:31,785 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 06:59:31,785 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-15 06:59:31,786 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 06:59:31,786 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-15 06:59:31,786 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 06:59:31,786 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 06:59:31,786 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 06:59:31,787 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 06:59:31,787 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-15 06:59:31,787 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 06:59:31,792 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-15 06:59:31,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 06:59:31,796 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 06:59:31,799 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 06:59:31,800 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-15 06:59:31,800 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 06:59:31,800 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-15 06:59:31,800 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 06:59:31,801 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 06:59:31,801 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 06:59:31,801 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 06:59:31,801 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-15 06:59:31,802 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 06:59:31,814 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-10-15 06:59:31,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 06:59:31,821 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 06:59:31,829 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 06:59:31,830 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 20 [2020-10-15 06:59:31,830 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 06:59:31,830 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-15 06:59:31,830 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 06:59:31,831 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 06:59:31,831 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 06:59:31,831 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 06:59:31,831 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 17 [2020-10-15 06:59:31,831 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 06:59:31,836 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 06:59:31,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 06:59:31,840 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 06:59:31,843 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 06:59:31,844 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-15 06:59:31,844 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 06:59:31,844 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-15 06:59:31,844 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 06:59:31,844 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 06:59:31,845 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 06:59:31,845 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 06:59:31,845 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 06:59:31,845 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 06:59:31,849 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-15 06:59:31,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 06:59:31,853 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 06:59:31,855 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 06:59:31,855 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 06:59:31,856 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 06:59:31,856 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-15 06:59:31,856 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 06:59:31,856 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 06:59:31,857 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 06:59:31,857 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 06:59:31,857 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 06:59:31,857 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 06:59:31,870 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 06:59:31,870 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1834643847] [2020-10-15 06:59:31,871 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 06:59:31,871 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-15 06:59:31,871 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1944280857] [2020-10-15 06:59:31,873 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-15 06:59:31,874 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 06:59:31,874 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-15 06:59:31,874 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-10-15 06:59:31,875 INFO L87 Difference]: Start difference. First operand 189 states and 227 transitions. Second operand 6 states. [2020-10-15 06:59:32,441 WARN L193 SmtUtils]: Spent 551.00 ms on a formula simplification that was a NOOP. DAG size: 241 [2020-10-15 06:59:33,001 WARN L193 SmtUtils]: Spent 396.00 ms on a formula simplification that was a NOOP. DAG size: 244 [2020-10-15 06:59:33,470 WARN L193 SmtUtils]: Spent 390.00 ms on a formula simplification that was a NOOP. DAG size: 241 [2020-10-15 06:59:36,417 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 06:59:36,418 INFO L93 Difference]: Finished difference Result 621 states and 761 transitions. [2020-10-15 06:59:36,419 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-15 06:59:36,419 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 40 [2020-10-15 06:59:36,420 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 06:59:36,424 INFO L225 Difference]: With dead ends: 621 [2020-10-15 06:59:36,424 INFO L226 Difference]: Without dead ends: 444 [2020-10-15 06:59:36,426 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=54, Invalid=102, Unknown=0, NotChecked=0, Total=156 [2020-10-15 06:59:36,427 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 444 states. [2020-10-15 06:59:36,499 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 444 to 362. [2020-10-15 06:59:36,499 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 362 states. [2020-10-15 06:59:36,502 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 362 states to 362 states and 436 transitions. [2020-10-15 06:59:36,502 INFO L78 Accepts]: Start accepts. Automaton has 362 states and 436 transitions. Word has length 40 [2020-10-15 06:59:36,503 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 06:59:36,503 INFO L479 AbstractCegarLoop]: Abstraction has 362 states and 436 transitions. [2020-10-15 06:59:36,503 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-15 06:59:36,503 INFO L276 IsEmpty]: Start isEmpty. Operand 362 states and 436 transitions. [2020-10-15 06:59:36,505 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2020-10-15 06:59:36,505 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 06:59:36,506 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 06:59:36,506 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-15 06:59:36,506 INFO L427 AbstractCegarLoop]: === Iteration 3 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 06:59:36,506 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 06:59:36,506 INFO L82 PathProgramCache]: Analyzing trace with hash -952658608, now seen corresponding path program 1 times [2020-10-15 06:59:36,507 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 06:59:36,507 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1963736164] [2020-10-15 06:59:36,507 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 06:59:36,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 06:59:36,567 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 06:59:36,700 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 06:59:37,224 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 06:59:37,225 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 61 [2020-10-15 06:59:37,225 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-15 06:59:37,225 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 681 [2020-10-15 06:59:37,225 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 06:59:37,226 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 06:59:37,226 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-15 06:59:37,226 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-15 06:59:37,226 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 52 [2020-10-15 06:59:37,226 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 06:59:37,664 WARN L193 SmtUtils]: Spent 377.00 ms on a formula simplification that was a NOOP. DAG size: 238 [2020-10-15 06:59:37,665 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 06:59:37,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 06:59:37,705 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 06:59:37,814 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 06:59:37,814 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 06:59:37,814 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 06:59:37,815 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 124 [2020-10-15 06:59:37,815 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 06:59:37,815 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 06:59:37,815 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 06:59:37,816 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 06:59:37,816 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-15 06:59:37,816 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 06:59:37,857 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-15 06:59:37,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 06:59:37,862 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 06:59:37,867 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 06:59:37,868 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-15 06:59:37,868 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 06:59:37,868 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-15 06:59:37,868 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 06:59:37,869 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 06:59:37,869 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 06:59:37,869 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 06:59:37,869 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-15 06:59:37,869 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 06:59:37,874 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-15 06:59:37,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 06:59:37,878 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 06:59:37,881 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 06:59:37,881 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-15 06:59:37,881 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 06:59:37,882 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-15 06:59:37,882 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 06:59:37,882 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 06:59:37,882 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 06:59:37,882 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 06:59:37,883 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-15 06:59:37,883 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 06:59:37,896 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-10-15 06:59:37,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 06:59:37,903 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 06:59:37,910 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 06:59:37,911 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 20 [2020-10-15 06:59:37,911 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 06:59:37,911 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-15 06:59:37,911 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 06:59:37,912 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 06:59:37,912 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 06:59:37,912 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 06:59:37,912 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 17 [2020-10-15 06:59:37,912 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 06:59:37,917 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 06:59:37,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 06:59:37,921 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 06:59:37,924 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 06:59:37,925 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-15 06:59:37,925 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 06:59:37,925 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-15 06:59:37,925 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 06:59:37,926 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 06:59:37,926 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 06:59:37,926 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 06:59:37,926 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 06:59:37,926 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 06:59:37,930 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-15 06:59:37,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 06:59:37,934 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 06:59:37,935 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 06:59:37,936 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 06:59:37,936 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 06:59:37,936 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-15 06:59:37,936 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 06:59:37,937 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 06:59:37,937 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 06:59:37,937 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 06:59:37,937 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 06:59:37,937 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 06:59:37,946 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 06:59:37,946 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1963736164] [2020-10-15 06:59:37,947 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 06:59:37,947 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-15 06:59:37,947 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [449038994] [2020-10-15 06:59:37,948 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-15 06:59:37,948 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 06:59:37,948 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-15 06:59:37,948 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-10-15 06:59:37,949 INFO L87 Difference]: Start difference. First operand 362 states and 436 transitions. Second operand 6 states. [2020-10-15 06:59:38,322 WARN L193 SmtUtils]: Spent 364.00 ms on a formula simplification that was a NOOP. DAG size: 241 [2020-10-15 06:59:38,830 WARN L193 SmtUtils]: Spent 443.00 ms on a formula simplification that was a NOOP. DAG size: 243 [2020-10-15 06:59:39,285 WARN L193 SmtUtils]: Spent 370.00 ms on a formula simplification that was a NOOP. DAG size: 240 [2020-10-15 06:59:41,686 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 06:59:41,686 INFO L93 Difference]: Finished difference Result 442 states and 537 transitions. [2020-10-15 06:59:41,691 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-15 06:59:41,691 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 41 [2020-10-15 06:59:41,692 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 06:59:41,695 INFO L225 Difference]: With dead ends: 442 [2020-10-15 06:59:41,696 INFO L226 Difference]: Without dead ends: 439 [2020-10-15 06:59:41,696 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=54, Invalid=102, Unknown=0, NotChecked=0, Total=156 [2020-10-15 06:59:41,697 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 439 states. [2020-10-15 06:59:41,764 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 439 to 363. [2020-10-15 06:59:41,767 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 363 states. [2020-10-15 06:59:41,771 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 363 states to 363 states and 437 transitions. [2020-10-15 06:59:41,772 INFO L78 Accepts]: Start accepts. Automaton has 363 states and 437 transitions. Word has length 41 [2020-10-15 06:59:41,772 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 06:59:41,772 INFO L479 AbstractCegarLoop]: Abstraction has 363 states and 437 transitions. [2020-10-15 06:59:41,772 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-15 06:59:41,772 INFO L276 IsEmpty]: Start isEmpty. Operand 363 states and 437 transitions. [2020-10-15 06:59:41,782 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2020-10-15 06:59:41,782 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 06:59:41,782 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 06:59:41,782 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-15 06:59:41,783 INFO L427 AbstractCegarLoop]: === Iteration 4 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 06:59:41,783 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 06:59:41,783 INFO L82 PathProgramCache]: Analyzing trace with hash 532179444, now seen corresponding path program 1 times [2020-10-15 06:59:41,783 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 06:59:41,784 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [225341600] [2020-10-15 06:59:41,784 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 06:59:41,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 06:59:41,848 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 06:59:41,978 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 06:59:42,168 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 06:59:42,168 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 62 [2020-10-15 06:59:42,168 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-15 06:59:42,169 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 346 [2020-10-15 06:59:42,169 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 06:59:42,169 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 06:59:42,169 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 06:59:42,169 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-15 06:59:42,170 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 53 [2020-10-15 06:59:42,170 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 06:59:42,612 WARN L193 SmtUtils]: Spent 377.00 ms on a formula simplification that was a NOOP. DAG size: 238 [2020-10-15 06:59:42,613 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 06:59:42,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 06:59:42,654 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 06:59:42,798 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 06:59:42,799 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 06:59:42,799 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 06:59:42,799 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 160 [2020-10-15 06:59:42,800 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 06:59:42,800 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 06:59:42,800 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 06:59:42,801 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 06:59:42,802 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-15 06:59:42,802 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-15 06:59:42,836 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-15 06:59:42,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 06:59:42,841 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 06:59:42,845 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 06:59:42,846 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-15 06:59:42,846 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 06:59:42,846 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-15 06:59:42,846 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 06:59:42,846 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 06:59:42,847 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 06:59:42,847 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 06:59:42,847 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-15 06:59:42,847 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 06:59:42,851 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-15 06:59:42,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 06:59:42,855 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 06:59:42,858 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 06:59:42,859 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-15 06:59:42,859 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 06:59:42,859 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-15 06:59:42,859 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 06:59:42,859 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 06:59:42,860 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 06:59:42,860 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 06:59:42,860 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-15 06:59:42,860 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 06:59:42,872 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-10-15 06:59:42,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 06:59:42,877 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 06:59:42,883 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 06:59:42,883 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 20 [2020-10-15 06:59:42,884 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 06:59:42,884 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-15 06:59:42,884 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 06:59:42,884 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 06:59:42,884 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 06:59:42,885 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 06:59:42,885 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 17 [2020-10-15 06:59:42,885 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 06:59:42,889 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 06:59:42,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 06:59:42,892 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 06:59:42,895 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 06:59:42,895 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-15 06:59:42,895 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 06:59:42,896 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-15 06:59:42,896 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 06:59:42,896 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 06:59:42,896 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 06:59:42,896 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 06:59:42,897 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 06:59:42,897 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 06:59:42,900 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-15 06:59:42,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 06:59:42,903 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 06:59:42,905 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 06:59:42,905 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 06:59:42,905 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 06:59:42,906 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-15 06:59:42,906 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 06:59:42,906 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 06:59:42,906 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 06:59:42,906 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 06:59:42,907 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 06:59:42,907 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 06:59:42,915 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 06:59:42,916 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [225341600] [2020-10-15 06:59:42,916 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 06:59:42,916 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-15 06:59:42,916 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [975257761] [2020-10-15 06:59:42,917 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-15 06:59:42,917 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 06:59:42,917 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-15 06:59:42,918 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-10-15 06:59:42,918 INFO L87 Difference]: Start difference. First operand 363 states and 437 transitions. Second operand 6 states. [2020-10-15 06:59:43,290 WARN L193 SmtUtils]: Spent 361.00 ms on a formula simplification that was a NOOP. DAG size: 241 [2020-10-15 06:59:43,760 WARN L193 SmtUtils]: Spent 375.00 ms on a formula simplification that was a NOOP. DAG size: 243 [2020-10-15 06:59:44,201 WARN L193 SmtUtils]: Spent 365.00 ms on a formula simplification that was a NOOP. DAG size: 240 [2020-10-15 06:59:45,694 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 06:59:45,695 INFO L93 Difference]: Finished difference Result 439 states and 534 transitions. [2020-10-15 06:59:45,696 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-15 06:59:45,696 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 42 [2020-10-15 06:59:45,697 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 06:59:45,700 INFO L225 Difference]: With dead ends: 439 [2020-10-15 06:59:45,700 INFO L226 Difference]: Without dead ends: 436 [2020-10-15 06:59:45,701 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=47, Invalid=85, Unknown=0, NotChecked=0, Total=132 [2020-10-15 06:59:45,702 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 436 states. [2020-10-15 06:59:45,755 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 436 to 362. [2020-10-15 06:59:45,755 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 362 states. [2020-10-15 06:59:45,758 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 362 states to 362 states and 435 transitions. [2020-10-15 06:59:45,758 INFO L78 Accepts]: Start accepts. Automaton has 362 states and 435 transitions. Word has length 42 [2020-10-15 06:59:45,758 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 06:59:45,759 INFO L479 AbstractCegarLoop]: Abstraction has 362 states and 435 transitions. [2020-10-15 06:59:45,759 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-15 06:59:45,759 INFO L276 IsEmpty]: Start isEmpty. Operand 362 states and 435 transitions. [2020-10-15 06:59:45,760 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2020-10-15 06:59:45,760 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 06:59:45,760 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 06:59:45,761 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-15 06:59:45,761 INFO L427 AbstractCegarLoop]: === Iteration 5 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 06:59:45,761 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 06:59:45,761 INFO L82 PathProgramCache]: Analyzing trace with hash -682476333, now seen corresponding path program 1 times [2020-10-15 06:59:45,762 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 06:59:45,762 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [677334933] [2020-10-15 06:59:45,762 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 06:59:45,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 06:59:45,814 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 06:59:45,933 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 06:59:46,096 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 06:59:46,096 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 63 [2020-10-15 06:59:46,096 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-15 06:59:46,096 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 302 [2020-10-15 06:59:46,097 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 06:59:46,097 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 06:59:46,097 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 06:59:46,097 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-15 06:59:46,098 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 54 [2020-10-15 06:59:46,098 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 06:59:46,493 WARN L193 SmtUtils]: Spent 346.00 ms on a formula simplification that was a NOOP. DAG size: 238 [2020-10-15 06:59:46,494 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 06:59:46,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 06:59:46,531 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 06:59:46,617 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 06:59:46,618 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 06:59:46,618 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 06:59:46,618 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 100 [2020-10-15 06:59:46,619 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 06:59:46,619 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 06:59:46,619 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 06:59:46,619 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 06:59:46,620 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-15 06:59:46,620 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 06:59:46,704 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-15 06:59:46,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 06:59:46,710 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 06:59:46,717 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 06:59:46,717 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-15 06:59:46,718 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 06:59:46,718 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-15 06:59:46,718 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 06:59:46,718 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 06:59:46,718 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 06:59:46,719 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 06:59:46,719 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-15 06:59:46,719 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 06:59:46,723 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-15 06:59:46,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 06:59:46,726 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 06:59:46,733 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 06:59:46,734 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-15 06:59:46,734 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 06:59:46,734 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-15 06:59:46,734 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 06:59:46,734 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 06:59:46,735 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 06:59:46,735 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 06:59:46,735 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-15 06:59:46,735 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 06:59:46,746 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-10-15 06:59:46,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 06:59:46,755 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 06:59:46,760 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 06:59:46,761 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 20 [2020-10-15 06:59:46,761 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 06:59:46,761 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-15 06:59:46,761 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 06:59:46,762 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 06:59:46,762 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 06:59:46,762 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 06:59:46,762 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 17 [2020-10-15 06:59:46,762 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 06:59:46,766 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 06:59:46,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 06:59:46,770 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 06:59:46,772 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 06:59:46,772 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-15 06:59:46,772 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 06:59:46,773 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-15 06:59:46,773 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 06:59:46,773 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 06:59:46,773 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 06:59:46,774 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 06:59:46,774 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 06:59:46,774 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 06:59:46,777 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-15 06:59:46,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 06:59:46,780 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 06:59:46,781 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 06:59:46,781 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 06:59:46,781 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 06:59:46,782 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-15 06:59:46,782 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 06:59:46,782 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 06:59:46,782 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 06:59:46,783 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 06:59:46,783 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 06:59:46,783 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 06:59:46,791 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 06:59:46,792 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [677334933] [2020-10-15 06:59:46,793 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 06:59:46,793 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-15 06:59:46,794 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [672000568] [2020-10-15 06:59:46,794 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-15 06:59:46,798 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 06:59:46,798 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-15 06:59:46,798 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-10-15 06:59:46,799 INFO L87 Difference]: Start difference. First operand 362 states and 435 transitions. Second operand 6 states. [2020-10-15 06:59:47,168 WARN L193 SmtUtils]: Spent 360.00 ms on a formula simplification that was a NOOP. DAG size: 241 [2020-10-15 06:59:47,668 WARN L193 SmtUtils]: Spent 371.00 ms on a formula simplification that was a NOOP. DAG size: 243 [2020-10-15 06:59:48,110 WARN L193 SmtUtils]: Spent 367.00 ms on a formula simplification that was a NOOP. DAG size: 240 [2020-10-15 06:59:49,589 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 06:59:49,589 INFO L93 Difference]: Finished difference Result 438 states and 532 transitions. [2020-10-15 06:59:49,589 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-15 06:59:49,590 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 43 [2020-10-15 06:59:49,590 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 06:59:49,593 INFO L225 Difference]: With dead ends: 438 [2020-10-15 06:59:49,593 INFO L226 Difference]: Without dead ends: 413 [2020-10-15 06:59:49,594 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=47, Invalid=85, Unknown=0, NotChecked=0, Total=132 [2020-10-15 06:59:49,595 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 413 states. [2020-10-15 06:59:49,639 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 413 to 342. [2020-10-15 06:59:49,639 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 342 states. [2020-10-15 06:59:49,641 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 342 states to 342 states and 412 transitions. [2020-10-15 06:59:49,641 INFO L78 Accepts]: Start accepts. Automaton has 342 states and 412 transitions. Word has length 43 [2020-10-15 06:59:49,642 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 06:59:49,642 INFO L479 AbstractCegarLoop]: Abstraction has 342 states and 412 transitions. [2020-10-15 06:59:49,642 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-15 06:59:49,642 INFO L276 IsEmpty]: Start isEmpty. Operand 342 states and 412 transitions. [2020-10-15 06:59:49,644 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2020-10-15 06:59:49,644 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 06:59:49,644 INFO L422 BasicCegarLoop]: trace histogram [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] [2020-10-15 06:59:49,644 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-15 06:59:49,645 INFO L427 AbstractCegarLoop]: === Iteration 6 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 06:59:49,645 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 06:59:49,645 INFO L82 PathProgramCache]: Analyzing trace with hash 396870949, now seen corresponding path program 1 times [2020-10-15 06:59:49,645 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 06:59:49,645 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1486438463] [2020-10-15 06:59:49,646 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 06:59:49,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 06:59:49,709 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 06:59:49,752 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 06:59:49,812 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 06:59:49,970 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 06:59:54,701 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 06:59:54,730 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 06:59:54,730 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 123 [2020-10-15 06:59:54,730 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-15 06:59:54,731 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5049 [2020-10-15 06:59:54,731 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 06:59:54,731 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 06:59:54,732 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 06:59:54,732 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 25 [2020-10-15 06:59:54,732 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 70 [2020-10-15 06:59:54,732 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 06:59:55,141 WARN L193 SmtUtils]: Spent 349.00 ms on a formula simplification that was a NOOP. DAG size: 238 [2020-10-15 06:59:55,143 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 06:59:55,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 06:59:55,159 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 06:59:55,192 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 06:59:55,192 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 06:59:55,192 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 06:59:55,192 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 36 [2020-10-15 06:59:55,193 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 06:59:55,193 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 06:59:55,193 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 06:59:55,193 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 06:59:55,193 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 06:59:55,194 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 06:59:55,244 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-15 06:59:55,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 06:59:55,248 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 06:59:55,251 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 06:59:55,251 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-15 06:59:55,251 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 06:59:55,252 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-15 06:59:55,252 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 06:59:55,252 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 06:59:55,252 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 06:59:55,252 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 06:59:55,253 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 06:59:55,253 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 06:59:55,257 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-15 06:59:55,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 06:59:55,260 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 06:59:55,261 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 06:59:55,261 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-15 06:59:55,261 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 06:59:55,262 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-15 06:59:55,262 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 06:59:55,262 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 06:59:55,262 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 06:59:55,262 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 06:59:55,263 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 06:59:55,263 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 06:59:55,283 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2020-10-15 06:59:55,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 06:59:55,297 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 06:59:55,321 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 06:59:55,669 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 06:59:56,206 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 06:59:56,208 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 58 [2020-10-15 06:59:56,208 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-15 06:59:56,209 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 915 [2020-10-15 06:59:56,209 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 06:59:56,210 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 06:59:56,210 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 06:59:56,210 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 06:59:56,211 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 55 [2020-10-15 06:59:56,211 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 06:59:56,248 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-15 06:59:56,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 06:59:56,254 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 06:59:56,261 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 06:59:56,304 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 06:59:56,304 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-10-15 06:59:56,305 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-15 06:59:56,305 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 53 [2020-10-15 06:59:56,305 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 06:59:56,306 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 06:59:56,306 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-15 06:59:56,306 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-15 06:59:56,307 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-15 06:59:56,307 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 06:59:56,316 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-15 06:59:56,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 06:59:56,328 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 06:59:56,366 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 06:59:56,366 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-10-15 06:59:56,367 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 06:59:56,367 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 44 [2020-10-15 06:59:56,367 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 06:59:56,368 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 06:59:56,368 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-15 06:59:56,369 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-15 06:59:56,369 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-15 06:59:56,369 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 06:59:56,447 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-15 06:59:56,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 06:59:56,455 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 06:59:56,465 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 06:59:56,466 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-15 06:59:56,466 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 06:59:56,467 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-15 06:59:56,467 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 06:59:56,467 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 06:59:56,467 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-15 06:59:56,468 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 06:59:56,468 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-15 06:59:56,469 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 06:59:56,544 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-10-15 06:59:56,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 06:59:56,553 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 06:59:56,572 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 06:59:56,573 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-10-15 06:59:56,573 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 06:59:56,573 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-10-15 06:59:56,573 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 06:59:56,574 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 06:59:56,574 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 06:59:56,574 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 06:59:56,575 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 06:59:56,575 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 06:59:56,585 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-15 06:59:56,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 06:59:56,593 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 06:59:56,610 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 06:59:56,611 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-10-15 06:59:56,611 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 06:59:56,611 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-10-15 06:59:56,611 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 06:59:56,612 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 06:59:56,612 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 06:59:56,613 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 06:59:56,613 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 06:59:56,613 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-15 06:59:56,622 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-15 06:59:56,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 06:59:56,681 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 06:59:56,695 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 06:59:56,696 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 06:59:56,696 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 06:59:56,696 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-10-15 06:59:56,697 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 06:59:56,697 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 06:59:56,698 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 06:59:56,700 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 06:59:56,701 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 06:59:56,701 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-15 06:59:56,731 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-10-15 06:59:56,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 06:59:56,738 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 06:59:56,744 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 06:59:56,744 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 20 [2020-10-15 06:59:56,744 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 06:59:56,745 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-15 06:59:56,745 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 06:59:56,745 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 06:59:56,746 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 06:59:56,746 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 17 [2020-10-15 06:59:56,746 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 06:59:56,747 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 06:59:56,752 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 06:59:56,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 06:59:56,757 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 06:59:56,765 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 06:59:56,766 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-15 06:59:56,766 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 06:59:56,766 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-15 06:59:56,767 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 06:59:56,767 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 06:59:56,767 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 06:59:56,768 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 06:59:56,768 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 06:59:56,768 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 06:59:56,774 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-15 06:59:56,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 06:59:56,778 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 06:59:56,780 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 06:59:56,781 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 06:59:56,781 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 06:59:56,781 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-15 06:59:56,782 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 06:59:56,782 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 06:59:56,783 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 06:59:56,783 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 06:59:56,783 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 06:59:56,784 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 06:59:56,819 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-10-15 06:59:56,822 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1486438463] [2020-10-15 06:59:56,822 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 06:59:56,822 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-10-15 06:59:56,822 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [260331378] [2020-10-15 06:59:56,824 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-10-15 06:59:56,825 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 06:59:56,825 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-10-15 06:59:56,826 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=104, Unknown=0, NotChecked=0, Total=132 [2020-10-15 06:59:56,826 INFO L87 Difference]: Start difference. First operand 342 states and 412 transitions. Second operand 12 states. [2020-10-15 06:59:57,244 WARN L193 SmtUtils]: Spent 391.00 ms on a formula simplification that was a NOOP. DAG size: 241 [2020-10-15 06:59:57,868 WARN L193 SmtUtils]: Spent 375.00 ms on a formula simplification that was a NOOP. DAG size: 243 [2020-10-15 06:59:58,366 WARN L193 SmtUtils]: Spent 373.00 ms on a formula simplification that was a NOOP. DAG size: 240 [2020-10-15 06:59:59,281 WARN L193 SmtUtils]: Spent 390.00 ms on a formula simplification that was a NOOP. DAG size: 248 [2020-10-15 06:59:59,834 WARN L193 SmtUtils]: Spent 434.00 ms on a formula simplification that was a NOOP. DAG size: 249 [2020-10-15 07:00:00,289 WARN L193 SmtUtils]: Spent 396.00 ms on a formula simplification that was a NOOP. DAG size: 250 [2020-10-15 07:00:02,452 WARN L193 SmtUtils]: Spent 386.00 ms on a formula simplification that was a NOOP. DAG size: 246 [2020-10-15 07:00:02,965 WARN L193 SmtUtils]: Spent 386.00 ms on a formula simplification that was a NOOP. DAG size: 247 [2020-10-15 07:00:03,469 WARN L193 SmtUtils]: Spent 427.00 ms on a formula simplification that was a NOOP. DAG size: 248 [2020-10-15 07:00:04,934 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 07:00:04,934 INFO L93 Difference]: Finished difference Result 1063 states and 1350 transitions. [2020-10-15 07:00:04,935 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2020-10-15 07:00:04,935 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 89 [2020-10-15 07:00:04,935 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 07:00:04,940 INFO L225 Difference]: With dead ends: 1063 [2020-10-15 07:00:04,940 INFO L226 Difference]: Without dead ends: 717 [2020-10-15 07:00:04,942 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 200 ImplicationChecksByTransitivity, 4.5s TimeCoverageRelationStatistics Valid=263, Invalid=667, Unknown=0, NotChecked=0, Total=930 [2020-10-15 07:00:04,943 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 717 states. [2020-10-15 07:00:05,027 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 717 to 643. [2020-10-15 07:00:05,028 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 643 states. [2020-10-15 07:00:05,031 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 643 states to 643 states and 805 transitions. [2020-10-15 07:00:05,032 INFO L78 Accepts]: Start accepts. Automaton has 643 states and 805 transitions. Word has length 89 [2020-10-15 07:00:05,032 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 07:00:05,032 INFO L479 AbstractCegarLoop]: Abstraction has 643 states and 805 transitions. [2020-10-15 07:00:05,032 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-10-15 07:00:05,032 INFO L276 IsEmpty]: Start isEmpty. Operand 643 states and 805 transitions. [2020-10-15 07:00:05,035 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2020-10-15 07:00:05,035 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 07:00:05,035 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 07:00:05,036 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-15 07:00:05,036 INFO L427 AbstractCegarLoop]: === Iteration 7 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 07:00:05,036 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 07:00:05,036 INFO L82 PathProgramCache]: Analyzing trace with hash -684294105, now seen corresponding path program 1 times [2020-10-15 07:00:05,036 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 07:00:05,037 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [826410132] [2020-10-15 07:00:05,037 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 07:00:05,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 07:00:05,104 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 07:00:05,159 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 07:00:05,222 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 07:00:05,574 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 07:00:10,108 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 07:00:10,109 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 151 [2020-10-15 07:00:10,109 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-15 07:00:10,109 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5031 [2020-10-15 07:00:10,109 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 07:00:10,110 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 07:00:10,110 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 22 [2020-10-15 07:00:10,110 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 49 [2020-10-15 07:00:10,110 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 43 [2020-10-15 07:00:10,110 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 07:00:10,541 WARN L193 SmtUtils]: Spent 373.00 ms on a formula simplification that was a NOOP. DAG size: 238 [2020-10-15 07:00:10,542 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 07:00:10,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 07:00:10,567 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 07:00:10,612 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 07:00:10,612 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 07:00:10,612 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 07:00:10,613 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 61 [2020-10-15 07:00:10,613 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 07:00:10,613 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 07:00:10,613 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 07:00:10,613 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 07:00:10,613 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 07:00:10,614 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 07:00:10,639 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-15 07:00:10,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 07:00:10,643 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 07:00:10,645 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 07:00:10,645 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-15 07:00:10,645 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 07:00:10,645 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-15 07:00:10,646 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 07:00:10,646 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 07:00:10,646 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 07:00:10,646 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 07:00:10,646 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 07:00:10,646 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 07:00:10,650 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-15 07:00:10,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 07:00:10,652 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 07:00:10,654 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 07:00:10,654 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-15 07:00:10,655 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 07:00:10,655 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-15 07:00:10,655 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 07:00:10,655 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 07:00:10,655 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 07:00:10,656 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 07:00:10,656 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 07:00:10,656 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 07:00:10,673 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2020-10-15 07:00:10,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 07:00:10,697 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 07:00:10,828 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 07:00:11,185 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 07:00:11,186 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 66 [2020-10-15 07:00:11,186 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-15 07:00:11,186 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 500 [2020-10-15 07:00:11,186 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 07:00:11,186 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 07:00:11,187 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 22 [2020-10-15 07:00:11,187 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 17 [2020-10-15 07:00:11,187 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 43 [2020-10-15 07:00:11,187 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 07:00:11,328 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-15 07:00:11,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 07:00:11,343 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 07:00:11,385 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 07:00:11,521 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 07:00:11,521 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-10-15 07:00:11,521 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-15 07:00:11,522 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 186 [2020-10-15 07:00:11,522 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 07:00:11,522 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 07:00:11,522 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-15 07:00:11,522 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 07:00:11,522 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 29 [2020-10-15 07:00:11,523 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 07:00:11,598 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-15 07:00:11,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 07:00:11,613 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 07:00:11,639 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 07:00:11,752 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 07:00:11,752 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 26 [2020-10-15 07:00:11,752 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-15 07:00:11,752 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 147 [2020-10-15 07:00:11,753 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 07:00:11,753 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 07:00:11,753 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-15 07:00:11,753 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 07:00:11,753 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 22 [2020-10-15 07:00:11,754 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 07:00:11,834 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-15 07:00:11,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 07:00:11,838 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 07:00:11,845 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 07:00:11,845 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-15 07:00:11,845 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 07:00:11,845 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-15 07:00:11,846 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 07:00:11,846 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 07:00:11,846 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 07:00:11,846 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 07:00:11,846 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 07:00:11,847 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 07:00:11,853 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-15 07:00:11,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 07:00:11,856 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 07:00:11,859 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 07:00:11,859 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-15 07:00:11,859 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 07:00:11,860 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-15 07:00:11,860 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 07:00:11,860 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 07:00:11,860 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 07:00:11,860 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 07:00:11,861 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 07:00:11,861 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 07:00:11,898 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2020-10-15 07:00:11,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 07:00:11,909 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 07:00:11,987 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 07:00:11,988 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-10-15 07:00:11,988 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 07:00:11,988 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 83 [2020-10-15 07:00:11,988 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 07:00:11,989 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 07:00:11,989 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-15 07:00:11,989 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 07:00:11,989 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-10-15 07:00:11,990 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 07:00:12,097 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-15 07:00:12,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 07:00:12,104 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 07:00:12,139 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 07:00:12,139 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-10-15 07:00:12,139 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 07:00:12,139 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 38 [2020-10-15 07:00:12,140 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 07:00:12,140 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 07:00:12,140 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-15 07:00:12,140 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 07:00:12,141 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-10-15 07:00:12,141 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 07:00:12,247 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-15 07:00:12,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 07:00:12,252 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 07:00:12,255 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 07:00:12,255 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 07:00:12,255 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 07:00:12,256 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-15 07:00:12,256 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 07:00:12,256 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 07:00:12,256 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 07:00:12,257 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 07:00:12,257 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-15 07:00:12,257 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 07:00:12,310 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2020-10-15 07:00:12,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 07:00:12,323 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 07:00:12,334 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 07:00:12,335 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 37 [2020-10-15 07:00:12,335 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 07:00:12,335 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-15 07:00:12,335 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 07:00:12,335 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 07:00:12,336 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 07:00:12,336 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 34 [2020-10-15 07:00:12,336 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 07:00:12,336 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 07:00:12,342 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-15 07:00:12,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 07:00:12,349 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 07:00:12,356 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 07:00:12,356 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 30 [2020-10-15 07:00:12,356 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 07:00:12,356 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-15 07:00:12,357 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 07:00:12,357 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 07:00:12,357 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 07:00:12,357 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 07:00:12,357 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 07:00:12,358 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 07:00:12,364 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-15 07:00:12,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 07:00:12,367 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 07:00:12,369 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 07:00:12,369 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 07:00:12,369 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 07:00:12,369 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-15 07:00:12,369 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 07:00:12,370 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 07:00:12,370 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 07:00:12,370 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 07:00:12,370 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 07:00:12,370 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 07:00:12,417 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-15 07:00:12,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 07:00:12,422 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 07:00:12,425 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 07:00:12,426 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-15 07:00:12,426 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 07:00:12,426 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-15 07:00:12,426 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 07:00:12,427 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 07:00:12,427 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 07:00:12,427 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 07:00:12,427 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 07:00:12,427 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 07:00:12,432 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-15 07:00:12,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 07:00:12,436 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 07:00:12,439 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 07:00:12,439 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-15 07:00:12,439 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 07:00:12,439 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-15 07:00:12,440 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 07:00:12,440 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 07:00:12,440 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 07:00:12,440 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 07:00:12,440 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 07:00:12,441 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 07:00:12,477 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-10-15 07:00:12,477 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [826410132] [2020-10-15 07:00:12,478 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 07:00:12,478 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [23] imperfect sequences [] total 23 [2020-10-15 07:00:12,478 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1196860277] [2020-10-15 07:00:12,479 INFO L459 AbstractCegarLoop]: Interpolant automaton has 23 states [2020-10-15 07:00:12,479 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 07:00:12,479 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2020-10-15 07:00:12,480 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=452, Unknown=0, NotChecked=0, Total=506 [2020-10-15 07:00:12,480 INFO L87 Difference]: Start difference. First operand 643 states and 805 transitions. Second operand 23 states. [2020-10-15 07:00:12,884 WARN L193 SmtUtils]: Spent 361.00 ms on a formula simplification that was a NOOP. DAG size: 241 [2020-10-15 07:00:15,319 WARN L193 SmtUtils]: Spent 378.00 ms on a formula simplification that was a NOOP. DAG size: 247 [2020-10-15 07:00:15,757 WARN L193 SmtUtils]: Spent 377.00 ms on a formula simplification that was a NOOP. DAG size: 247 [2020-10-15 07:00:18,345 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 07:00:18,346 INFO L93 Difference]: Finished difference Result 1137 states and 1458 transitions. [2020-10-15 07:00:18,348 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2020-10-15 07:00:18,348 INFO L78 Accepts]: Start accepts. Automaton has 23 states. Word has length 111 [2020-10-15 07:00:18,349 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 07:00:18,359 INFO L225 Difference]: With dead ends: 1137 [2020-10-15 07:00:18,359 INFO L226 Difference]: Without dead ends: 774 [2020-10-15 07:00:18,363 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 71 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 264 ImplicationChecksByTransitivity, 2.8s TimeCoverageRelationStatistics Valid=213, Invalid=1679, Unknown=0, NotChecked=0, Total=1892 [2020-10-15 07:00:18,365 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 774 states. [2020-10-15 07:00:18,521 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 774 to 659. [2020-10-15 07:00:18,521 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 659 states. [2020-10-15 07:00:18,529 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 659 states to 659 states and 821 transitions. [2020-10-15 07:00:18,531 INFO L78 Accepts]: Start accepts. Automaton has 659 states and 821 transitions. Word has length 111 [2020-10-15 07:00:18,531 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 07:00:18,532 INFO L479 AbstractCegarLoop]: Abstraction has 659 states and 821 transitions. [2020-10-15 07:00:18,532 INFO L480 AbstractCegarLoop]: Interpolant automaton has 23 states. [2020-10-15 07:00:18,532 INFO L276 IsEmpty]: Start isEmpty. Operand 659 states and 821 transitions. [2020-10-15 07:00:18,536 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2020-10-15 07:00:18,537 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 07:00:18,537 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 07:00:18,537 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-15 07:00:18,537 INFO L427 AbstractCegarLoop]: === Iteration 8 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 07:00:18,538 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 07:00:18,538 INFO L82 PathProgramCache]: Analyzing trace with hash 122960036, now seen corresponding path program 1 times [2020-10-15 07:00:18,538 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 07:00:18,538 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1260296365] [2020-10-15 07:00:18,539 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 07:00:18,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 07:00:18,619 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 07:00:18,670 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 07:00:19,283 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 07:00:19,284 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 151 [2020-10-15 07:00:19,284 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-15 07:00:19,284 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 687 [2020-10-15 07:00:19,285 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 07:00:19,285 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 07:00:19,285 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-15 07:00:19,285 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 25 [2020-10-15 07:00:19,286 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-15 07:00:19,286 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 07:00:19,708 WARN L193 SmtUtils]: Spent 383.00 ms on a formula simplification that was a NOOP. DAG size: 238 [2020-10-15 07:00:19,710 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 07:00:19,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 07:00:19,724 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 07:00:19,751 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 07:00:19,752 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 07:00:19,752 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 07:00:19,752 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 31 [2020-10-15 07:00:19,753 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 07:00:19,753 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 07:00:19,753 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 07:00:19,753 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 07:00:19,753 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 07:00:19,754 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 07:00:19,786 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-15 07:00:19,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 07:00:19,790 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 07:00:19,792 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 07:00:19,792 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-15 07:00:19,792 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 07:00:19,793 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-15 07:00:19,793 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 07:00:19,793 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 07:00:19,793 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 07:00:19,793 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 07:00:19,794 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 07:00:19,794 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 07:00:19,797 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-15 07:00:19,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 07:00:19,799 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 07:00:19,800 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 07:00:19,801 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-15 07:00:19,801 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 07:00:19,801 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-15 07:00:19,801 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 07:00:19,801 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 07:00:19,801 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 07:00:19,802 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 07:00:19,802 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 07:00:19,802 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 07:00:19,821 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2020-10-15 07:00:19,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 07:00:19,840 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 07:00:19,858 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 07:00:19,859 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 66 [2020-10-15 07:00:19,859 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 07:00:19,859 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-10-15 07:00:19,859 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 07:00:19,859 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 07:00:19,860 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 07:00:19,860 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 63 [2020-10-15 07:00:19,860 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 07:00:19,862 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-15 07:00:19,886 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-15 07:00:19,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 07:00:19,891 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 07:00:19,900 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 07:00:19,900 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-10-15 07:00:19,900 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 07:00:19,900 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-15 07:00:19,901 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 07:00:19,901 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 07:00:19,901 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 07:00:19,901 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 07:00:19,901 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 07:00:19,901 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 07:00:19,908 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-15 07:00:19,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 07:00:19,912 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 07:00:19,921 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 07:00:19,921 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 26 [2020-10-15 07:00:19,921 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 07:00:19,921 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-15 07:00:19,921 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 07:00:19,922 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 07:00:19,922 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 07:00:19,922 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 07:00:19,922 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 07:00:19,922 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 07:00:19,928 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-15 07:00:19,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 07:00:19,931 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 07:00:19,937 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 07:00:19,937 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-15 07:00:19,938 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 07:00:19,938 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-15 07:00:19,938 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 07:00:19,938 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 07:00:19,939 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 07:00:19,939 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 07:00:19,939 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 07:00:19,939 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 07:00:19,944 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-15 07:00:19,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 07:00:19,946 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 07:00:19,948 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 07:00:19,948 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-15 07:00:19,949 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 07:00:19,949 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-15 07:00:19,949 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 07:00:19,949 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 07:00:19,950 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 07:00:19,950 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 07:00:19,950 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 07:00:19,950 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 07:00:19,969 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2020-10-15 07:00:19,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 07:00:19,975 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 07:00:19,983 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 07:00:19,983 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-10-15 07:00:19,984 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 07:00:19,984 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-15 07:00:19,984 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 07:00:19,984 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 07:00:19,984 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 07:00:19,985 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 07:00:19,985 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 07:00:19,985 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 07:00:19,990 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-15 07:00:19,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 07:00:19,994 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 07:00:20,003 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 07:00:20,004 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-10-15 07:00:20,004 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 07:00:20,004 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-15 07:00:20,005 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 07:00:20,005 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 07:00:20,005 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 07:00:20,005 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 07:00:20,005 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 07:00:20,006 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 07:00:20,010 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-15 07:00:20,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 07:00:20,013 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 07:00:20,015 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 07:00:20,015 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 07:00:20,015 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 07:00:20,015 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-15 07:00:20,016 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 07:00:20,016 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 07:00:20,016 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 07:00:20,016 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 07:00:20,017 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 07:00:20,017 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 07:00:20,055 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2020-10-15 07:00:20,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 07:00:20,071 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 07:00:20,083 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 07:00:20,083 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 37 [2020-10-15 07:00:20,083 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 07:00:20,084 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-10-15 07:00:20,084 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 07:00:20,084 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 07:00:20,085 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 07:00:20,085 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 34 [2020-10-15 07:00:20,085 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 07:00:20,085 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 07:00:20,101 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-15 07:00:20,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 07:00:20,106 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 07:00:20,113 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 07:00:20,113 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 30 [2020-10-15 07:00:20,113 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 07:00:20,114 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-15 07:00:20,114 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 07:00:20,114 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 07:00:20,114 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 07:00:20,114 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 07:00:20,115 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 07:00:20,115 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 07:00:20,121 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-15 07:00:20,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 07:00:20,125 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 07:00:20,127 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 07:00:20,127 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-15 07:00:20,128 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 07:00:20,128 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-15 07:00:20,128 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 07:00:20,128 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 07:00:20,129 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 07:00:20,129 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 07:00:20,129 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 07:00:20,129 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 07:00:20,154 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-15 07:00:20,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 07:00:20,159 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 07:00:20,162 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 07:00:20,163 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-15 07:00:20,163 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 07:00:20,163 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-15 07:00:20,163 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 07:00:20,164 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 07:00:20,164 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 07:00:20,164 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 07:00:20,164 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 07:00:20,165 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 07:00:20,170 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-15 07:00:20,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 07:00:20,175 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 07:00:20,177 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 07:00:20,178 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-15 07:00:20,178 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 07:00:20,178 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-15 07:00:20,178 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 07:00:20,178 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 07:00:20,179 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 07:00:20,179 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 07:00:20,179 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 07:00:20,179 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 07:00:20,205 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-10-15 07:00:20,206 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1260296365] [2020-10-15 07:00:20,206 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 07:00:20,207 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-10-15 07:00:20,207 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [345699005] [2020-10-15 07:00:20,208 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-15 07:00:20,209 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 07:00:20,210 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-15 07:00:20,210 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2020-10-15 07:00:20,210 INFO L87 Difference]: Start difference. First operand 659 states and 821 transitions. Second operand 10 states. [2020-10-15 07:00:20,580 WARN L193 SmtUtils]: Spent 359.00 ms on a formula simplification that was a NOOP. DAG size: 241 [2020-10-15 07:00:21,049 WARN L193 SmtUtils]: Spent 377.00 ms on a formula simplification that was a NOOP. DAG size: 243 [2020-10-15 07:00:21,498 WARN L193 SmtUtils]: Spent 368.00 ms on a formula simplification that was a NOOP. DAG size: 240 [2020-10-15 07:00:23,705 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 07:00:23,705 INFO L93 Difference]: Finished difference Result 1572 states and 2019 transitions. [2020-10-15 07:00:23,708 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-10-15 07:00:23,709 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 111 [2020-10-15 07:00:23,709 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 07:00:23,715 INFO L225 Difference]: With dead ends: 1572 [2020-10-15 07:00:23,715 INFO L226 Difference]: Without dead ends: 925 [2020-10-15 07:00:23,722 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=115, Invalid=227, Unknown=0, NotChecked=0, Total=342 [2020-10-15 07:00:23,724 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 925 states. [2020-10-15 07:00:23,822 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 925 to 731. [2020-10-15 07:00:23,823 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 731 states. [2020-10-15 07:00:23,826 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 731 states to 731 states and 921 transitions. [2020-10-15 07:00:23,827 INFO L78 Accepts]: Start accepts. Automaton has 731 states and 921 transitions. Word has length 111 [2020-10-15 07:00:23,827 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 07:00:23,827 INFO L479 AbstractCegarLoop]: Abstraction has 731 states and 921 transitions. [2020-10-15 07:00:23,827 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-15 07:00:23,827 INFO L276 IsEmpty]: Start isEmpty. Operand 731 states and 921 transitions. [2020-10-15 07:00:23,831 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2020-10-15 07:00:23,831 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 07:00:23,831 INFO L422 BasicCegarLoop]: trace histogram [3, 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] [2020-10-15 07:00:23,832 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-15 07:00:23,832 INFO L427 AbstractCegarLoop]: === Iteration 9 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 07:00:23,832 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 07:00:23,832 INFO L82 PathProgramCache]: Analyzing trace with hash 1412874651, now seen corresponding path program 1 times [2020-10-15 07:00:23,833 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 07:00:23,833 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1912445331] [2020-10-15 07:00:23,833 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 07:00:23,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-15 07:00:23,919 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-10-15 07:00:23,919 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-10-15 07:00:23,923 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-15 07:00:23,951 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.10 07:00:23 BoogieIcfgContainer [2020-10-15 07:00:23,951 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-15 07:00:23,955 INFO L168 Benchmark]: Toolchain (without parser) took 62634.99 ms. Allocated memory was 145.8 MB in the beginning and 980.9 MB in the end (delta: 835.2 MB). Free memory was 96.5 MB in the beginning and 581.9 MB in the end (delta: -485.4 MB). Peak memory consumption was 349.8 MB. Max. memory is 7.1 GB. [2020-10-15 07:00:23,956 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 145.8 MB. Free memory was 120.3 MB in the beginning and 119.9 MB in the end (delta: 419.9 kB). Peak memory consumption was 419.9 kB. Max. memory is 7.1 GB. [2020-10-15 07:00:23,957 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1229.14 ms. Allocated memory was 145.8 MB in the beginning and 203.4 MB in the end (delta: 57.7 MB). Free memory was 96.1 MB in the beginning and 129.8 MB in the end (delta: -33.8 MB). Peak memory consumption was 33.5 MB. Max. memory is 7.1 GB. [2020-10-15 07:00:23,957 INFO L168 Benchmark]: Boogie Preprocessor took 115.41 ms. Allocated memory is still 203.4 MB. Free memory was 129.8 MB in the beginning and 123.6 MB in the end (delta: 6.3 MB). Peak memory consumption was 6.3 MB. Max. memory is 7.1 GB. [2020-10-15 07:00:23,958 INFO L168 Benchmark]: RCFGBuilder took 1780.73 ms. Allocated memory was 203.4 MB in the beginning and 236.5 MB in the end (delta: 33.0 MB). Free memory was 123.6 MB in the beginning and 117.3 MB in the end (delta: 6.3 MB). Peak memory consumption was 50.0 MB. Max. memory is 7.1 GB. [2020-10-15 07:00:23,959 INFO L168 Benchmark]: TraceAbstraction took 59504.00 ms. Allocated memory was 236.5 MB in the beginning and 980.9 MB in the end (delta: 744.5 MB). Free memory was 117.3 MB in the beginning and 581.9 MB in the end (delta: -464.6 MB). Peak memory consumption was 279.9 MB. Max. memory is 7.1 GB. [2020-10-15 07:00:23,962 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 ms. Allocated memory is still 145.8 MB. Free memory was 120.3 MB in the beginning and 119.9 MB in the end (delta: 419.9 kB). Peak memory consumption was 419.9 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 1229.14 ms. Allocated memory was 145.8 MB in the beginning and 203.4 MB in the end (delta: 57.7 MB). Free memory was 96.1 MB in the beginning and 129.8 MB in the end (delta: -33.8 MB). Peak memory consumption was 33.5 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 115.41 ms. Allocated memory is still 203.4 MB. Free memory was 129.8 MB in the beginning and 123.6 MB in the end (delta: 6.3 MB). Peak memory consumption was 6.3 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1780.73 ms. Allocated memory was 203.4 MB in the beginning and 236.5 MB in the end (delta: 33.0 MB). Free memory was 123.6 MB in the beginning and 117.3 MB in the end (delta: 6.3 MB). Peak memory consumption was 50.0 MB. Max. memory is 7.1 GB. * TraceAbstraction took 59504.00 ms. Allocated memory was 236.5 MB in the beginning and 980.9 MB in the end (delta: 744.5 MB). Free memory was 117.3 MB in the beginning and 581.9 MB in the end (delta: -464.6 MB). Peak memory consumption was 279.9 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 3371]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of large string literal at line 3541. Possible FailurePath: [L3394] int ldv_state_variable_1 ; [L3395] int LDV_IN_INTERRUPT = 1; [L3396] int usb_counter ; [L3397] int ref_cnt ; [L3398] int ldv_state_variable_0 ; [L3399] struct usb_interface *go7007_loader_driver_group1 ; [L3405-L3410] struct fw_config fw_configs[6U] = { {6467U, 41552U, "go7007/s2250-1.fw", "go7007/s2250-2.fw"}, {2363U, 40962U, "go7007/px-m402u.fw", (char const *)0}, {2363U, 40964U, "go7007/px-tv402u.fw", (char const *)0}, {3761U, 26214U, "go7007/lr192.fw", (char const *)0}, {3761U, 26216U, "go7007/wis-startrek.fw", (char const *)0}, {0U, 0U, (char const *)0, (char const *)0}}; [L3506-L3520] static struct usb_device_id const go7007_loader_ids[6U] = { {3U, 6467U, 41552U, (unsigned short)0, (unsigned short)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, 0UL}, {3U, 2363U, 40962U, (unsigned short)0, (unsigned short)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, 0UL}, {3U, 2363U, 40964U, (unsigned short)0, (unsigned short)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, 0UL}, {3U, 3761U, 26214U, (unsigned short)0, (unsigned short)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, 0UL}, {3U, 3761U, 26216U, (unsigned short)0, (unsigned short)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, 0UL}}; [L3521] struct usb_device_id const __mod_usb_device_table ; [L3522-L3536] static struct usb_driver go7007_loader_driver = {"go7007-loader", & go7007_loader_probe, & go7007_loader_disconnect, 0, 0, 0, 0, 0, 0, (struct usb_device_id const *)(& go7007_loader_ids), {{{{{{0U}}, 0U, 0U, 0, {0, {0, 0}, 0, 0, 0UL}}}}, {0, 0}}, {{0, 0, 0, 0, (_Bool)0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0}, 0}, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0}; [L3552] int ldv_retval_0 ; [L3553] int ldv_retval_1 ; [L3710] int INTERF_STATE = 0; [L3711] int SERIAL_STATE = 0; [L3712] void *usb_intfdata = 0; [L3713] struct urb *usb_urb = 0; [L3714] struct usb_device *usb_dev = 0; [L3715] int dev_counter = 0; [L3716] int completeFnIntCounter = 0; [L3717] int completeFnBulkCounter = 0; [L3718] void (*completeFnInt)(struct urb * ) ; [L3719] void (*completeFnBulk)(struct urb * ) ; [L3567] struct usb_device_id *ldvarg0 ; [L3568] void *tmp ; [L3569] int tmp___0 ; [L3570] int tmp___1 ; [L3571] int tmp___2 ; [L3573] CALL, EXPR ldv_zalloc(32UL) [L3336] void *p ; [L3337] void *tmp ; [L3338] int tmp___0 ; [L3340] tmp___0 = __VERIFIER_nondet_int() [L3341] COND TRUE tmp___0 != 0 [L3342] return ((void *)0); [L3573] RET, EXPR ldv_zalloc(32UL) [L3573] tmp = ldv_zalloc(32UL) [L3574] ldvarg0 = (struct usb_device_id *)tmp [L3575] FCALL ldv_initialize() [L3576] ldv_state_variable_1 = 0 [L3577] ref_cnt = 0 [L3578] ldv_state_variable_0 = 1 [L3580] tmp___0 = __VERIFIER_nondet_int() [L3582] case 0: [L3612] case 1: [L3613] COND TRUE ldv_state_variable_0 != 0 [L3614] tmp___2 = __VERIFIER_nondet_int() [L3616] case 0: [L3624] case 1: [L3625] COND TRUE ldv_state_variable_0 == 1 [L3626] CALL, EXPR go7007_loader_driver_init() [L3539] int tmp ; [L3541] CALL, EXPR ldv_usb_register_driver_4(& go7007_loader_driver, & __this_module, "go7007_loader") [L3682] ldv_func_ret_type ldv_func_res ; [L3683] int tmp ; [L3685] CALL, EXPR usb_register_driver(ldv_func_arg1, ldv_func_arg2, ldv_func_arg3) [L3961] return __VERIFIER_nondet_int(); [L3685] RET, EXPR usb_register_driver(ldv_func_arg1, ldv_func_arg2, ldv_func_arg3) [L3685] tmp = usb_register_driver(ldv_func_arg1, ldv_func_arg2, ldv_func_arg3) [L3686] ldv_func_res = tmp [L3687] ldv_state_variable_1 = 1 [L3688] usb_counter = 0 [L3689] CALL ldv_usb_driver_1() [L3558] void *tmp ; [L3560] CALL, EXPR ldv_zalloc(1520UL) [L3336] void *p ; [L3337] void *tmp ; [L3338] int tmp___0 ; [L3340] tmp___0 = __VERIFIER_nondet_int() [L3341] COND TRUE tmp___0 != 0 [L3342] return ((void *)0); [L3560] RET, EXPR ldv_zalloc(1520UL) [L3560] tmp = ldv_zalloc(1520UL) [L3561] go7007_loader_driver_group1 = (struct usb_interface *)tmp [L3689] RET ldv_usb_driver_1() [L3690] return (ldv_func_res); [L3541] RET, EXPR ldv_usb_register_driver_4(& go7007_loader_driver, & __this_module, "go7007_loader") [L3541] tmp = ldv_usb_register_driver_4(& go7007_loader_driver, & __this_module, "go7007_loader") [L3542] return (tmp); [L3626] RET, EXPR go7007_loader_driver_init() [L3626] ldv_retval_1 = go7007_loader_driver_init() [L3627] COND TRUE ldv_retval_1 == 0 [L3628] ldv_state_variable_0 = 3 [L3631] COND FALSE !(ldv_retval_1 != 0) [L3580] tmp___0 = __VERIFIER_nondet_int() [L3582] case 0: [L3583] COND TRUE ldv_state_variable_1 != 0 [L3584] tmp___1 = __VERIFIER_nondet_int() [L3586] case 0: [L3587] COND TRUE ldv_state_variable_1 == 1 [L3588] CALL, EXPR go7007_loader_probe(go7007_loader_driver_group1, (struct usb_device_id const *)ldvarg0) [L3413] struct usb_device *usbdev ; [L3414] struct firmware const *fw ; [L3415] u16 vendor ; [L3416] u16 product ; [L3417] char const *fw1 ; [L3418] char const *fw2 ; [L3419] int ret ; [L3420] int i ; [L3421] struct usb_device *tmp ; [L3422] int tmp___0 ; [L3423] int tmp___1 ; [L3425] CALL, EXPR interface_to_usbdev(interface) [L3658] struct usb_device *tmp ; [L3660] CALL, EXPR ldv_interface_to_usbdev() [L3805] void *result ; [L3806] void *tmp ; [L3808] CALL, EXPR ldv_malloc(sizeof(struct usb_device)) [L3319] void *p ; [L3320] void *tmp ; [L3321] int tmp___0 ; [L3323] tmp___0 = __VERIFIER_nondet_int() [L3324] COND FALSE !(tmp___0 != 0) [L3327] tmp = malloc(size) [L3328] p = tmp [L3329] CALL assume_abort_if_not((unsigned long )p != (unsigned long )((void *)0)) [L3315] COND FALSE !(!cond) [L3329] RET assume_abort_if_not((unsigned long )p != (unsigned long )((void *)0)) [L3330] return (p); [L3808] RET, EXPR ldv_malloc(sizeof(struct usb_device)) [L3808] tmp = ldv_malloc(sizeof(struct usb_device)) [L3809] result = tmp [L3810] COND TRUE (unsigned long )result != (unsigned long )((void *)0) [L3814] return (result); [L3660] RET, EXPR ldv_interface_to_usbdev() [L3660] tmp = ldv_interface_to_usbdev() [L3661] return (tmp); [L3425] RET, EXPR interface_to_usbdev(interface) [L3425] tmp = interface_to_usbdev(interface) [L3426] CALL, EXPR ldv_usb_get_dev_2(tmp) [L3666] struct usb_device *tmp ; [L3668] CALL, EXPR ldv_get_dev(ldv_func_arg1) [L3819] int tmp ; [L3821] COND TRUE (unsigned long )usb_dev == (unsigned long )((struct usb_device *)0) [L3822] CALL, EXPR ldv_undef_int() [L3353] int tmp ; [L3355] tmp = __VERIFIER_nondet_int() [L3356] return (tmp); [L3822] RET, EXPR ldv_undef_int() [L3822] tmp = ldv_undef_int() [L3823] COND TRUE \read(tmp) [L3824] dev_counter = dev_counter + 1 [L3825] usb_dev = data [L3833] return (usb_dev); [L3668] RET, EXPR ldv_get_dev(ldv_func_arg1) [L3668] tmp = ldv_get_dev(ldv_func_arg1) [L3669] return (tmp); [L3426] RET, EXPR ldv_usb_get_dev_2(tmp) [L3426] usbdev = ldv_usb_get_dev_2(tmp) [L3427] COND FALSE !((unsigned long )usbdev == (unsigned long )((struct usb_device *)0)) [L3431] EXPR usbdev->descriptor.bNumConfigurations [L3431] COND TRUE (unsigned int )usbdev->descriptor.bNumConfigurations != 1U [L3433] return (-19); [L3433] return (-19); [L3588] RET, EXPR go7007_loader_probe(go7007_loader_driver_group1, (struct usb_device_id const *)ldvarg0) [L3588] ldv_retval_0 = go7007_loader_probe(go7007_loader_driver_group1, (struct usb_device_id const *)ldvarg0) [L3589] COND FALSE !(ldv_retval_0 == 0) [L3580] tmp___0 = __VERIFIER_nondet_int() [L3582] case 0: [L3612] case 1: [L3613] COND TRUE ldv_state_variable_0 != 0 [L3614] tmp___2 = __VERIFIER_nondet_int() [L3616] case 0: [L3617] COND TRUE ldv_state_variable_0 == 3 && ref_cnt == 0 [L3618] CALL go7007_loader_driver_exit() [L3548] CALL ldv_usb_deregister_5(& go7007_loader_driver) [L3696] FCALL usb_deregister(arg) [L3697] ldv_state_variable_1 = 0 [L3548] RET ldv_usb_deregister_5(& go7007_loader_driver) [L3618] RET go7007_loader_driver_exit() [L3619] ldv_state_variable_0 = 2 [L3652] CALL ldv_check_final_state() [L3911] COND TRUE (unsigned long )usb_urb == (unsigned long )((struct urb *)0) [L3915] COND FALSE !((unsigned long )usb_dev == (unsigned long )((struct usb_device *)0)) [L3917] CALL ldv_error() [L3371] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 49 procedures, 296 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 59.4s, OverallIterations: 9, TraceHistogramMax: 3, AutomataDifference: 34.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 1807 SDtfs, 4508 SDslu, 4564 SDs, 0 SdLazy, 6697 SolverSat, 2221 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 17.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 301 GetRequests, 161 SyntacticMatches, 0 SemanticMatches, 140 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 579 ImplicationChecksByTransitivity, 18.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=731occurred in iteration=8, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.7s AutomataMinimizationTime, 8 MinimizatonAttempts, 745 StatesRemovedByMinimization, 8 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.5s SatisfiabilityAnalysisTime, 23.1s InterpolantComputationTime, 646 NumberOfCodeBlocks, 646 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 508 ConstructedInterpolants, 0 QuantifiedInterpolants, 239832 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 8 InterpolantComputations, 8 PerfectInterpolantSequences, 14/14 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request...