/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.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=DEEPEST --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 language data_model -i ../../../trunk/examples/svcomp/ldv-linux-3.0/usb_urb-drivers-usb-serial-ir-usb.ko.cil.out.i -------------------------------------------------------------------------------- This is Ultimate 0.2.0-0f64333 [2020-10-28 03:07:19,142 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-28 03:07:19,146 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-28 03:07:19,186 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-28 03:07:19,187 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-28 03:07:19,188 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-28 03:07:19,190 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-28 03:07:19,192 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-28 03:07:19,201 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-28 03:07:19,202 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-28 03:07:19,203 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-28 03:07:19,205 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-28 03:07:19,205 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-28 03:07:19,206 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-28 03:07:19,207 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-28 03:07:19,209 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-28 03:07:19,210 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-28 03:07:19,211 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-28 03:07:19,213 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-28 03:07:19,215 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-28 03:07:19,217 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-28 03:07:19,218 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-28 03:07:19,220 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-28 03:07:19,221 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-28 03:07:19,224 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-28 03:07:19,224 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-28 03:07:19,225 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-28 03:07:19,226 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-28 03:07:19,226 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-28 03:07:19,227 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-28 03:07:19,228 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-28 03:07:19,229 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-28 03:07:19,229 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-28 03:07:19,230 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-28 03:07:19,232 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-28 03:07:19,232 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-28 03:07:19,233 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-28 03:07:19,233 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-28 03:07:19,233 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-28 03:07:19,234 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-28 03:07:19,235 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-28 03:07:19,236 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 [2020-10-28 03:07:19,263 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-28 03:07:19,263 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-28 03:07:19,264 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-28 03:07:19,265 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-28 03:07:19,265 INFO L138 SettingsManager]: * Use SBE=true [2020-10-28 03:07:19,265 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-28 03:07:19,266 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-28 03:07:19,266 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-28 03:07:19,266 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-28 03:07:19,266 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-28 03:07:19,267 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-28 03:07:19,267 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-28 03:07:19,267 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-28 03:07:19,267 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-28 03:07:19,268 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-28 03:07:19,268 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-28 03:07:19,268 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-28 03:07:19,268 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-28 03:07:19,269 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-28 03:07:19,269 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-28 03:07:19,269 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-28 03:07:19,269 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-28 03:07:19,270 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-28 03:07:19,270 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-28 03:07:19,270 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-28 03:07:19,270 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-28 03:07:19,270 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-10-28 03:07:19,271 INFO L138 SettingsManager]: * To the following directory=dump/ WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=DEEPEST;log-additional-information=true;unknown-allowed=true; [2020-10-28 03:07:19,644 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-28 03:07:19,670 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-28 03:07:19,673 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-28 03:07:19,674 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-28 03:07:19,675 INFO L275 PluginConnector]: CDTParser initialized [2020-10-28 03:07:19,676 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-linux-3.0/usb_urb-drivers-usb-serial-ir-usb.ko.cil.out.i [2020-10-28 03:07:19,754 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/97f8a5731/8cef8905c9cf49dda60270521900b65e/FLAG8382c2994 [2020-10-28 03:07:20,672 INFO L306 CDTParser]: Found 1 translation units. [2020-10-28 03:07:20,673 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/ldv-linux-3.0/usb_urb-drivers-usb-serial-ir-usb.ko.cil.out.i [2020-10-28 03:07:20,720 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/97f8a5731/8cef8905c9cf49dda60270521900b65e/FLAG8382c2994 [2020-10-28 03:07:21,198 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/97f8a5731/8cef8905c9cf49dda60270521900b65e [2020-10-28 03:07:21,201 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-28 03:07:21,208 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-28 03:07:21,213 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-28 03:07:21,213 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-28 03:07:21,217 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-28 03:07:21,217 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 03:07:21" (1/1) ... [2020-10-28 03:07:21,221 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6d3fc08e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 03:07:21, skipping insertion in model container [2020-10-28 03:07:21,221 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 03:07:21" (1/1) ... [2020-10-28 03:07:21,229 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-28 03:07:21,332 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-28 03:07:22,247 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-28 03:07:22,284 INFO L203 MainTranslator]: Completed pre-run [2020-10-28 03:07:22,464 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-28 03:07:22,547 INFO L208 MainTranslator]: Completed translation [2020-10-28 03:07:22,547 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 03:07:22 WrapperNode [2020-10-28 03:07:22,548 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-28 03:07:22,549 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-28 03:07:22,549 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-28 03:07:22,549 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-28 03:07:22,563 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 03:07:22" (1/1) ... [2020-10-28 03:07:22,563 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 03:07:22" (1/1) ... [2020-10-28 03:07:22,617 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 03:07:22" (1/1) ... [2020-10-28 03:07:22,618 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 03:07:22" (1/1) ... [2020-10-28 03:07:22,723 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 03:07:22" (1/1) ... [2020-10-28 03:07:22,739 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 03:07:22" (1/1) ... [2020-10-28 03:07:22,752 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 03:07:22" (1/1) ... [2020-10-28 03:07:22,766 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-28 03:07:22,768 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-28 03:07:22,768 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-28 03:07:22,768 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-28 03:07:22,769 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 03:07:22" (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 [2020-10-28 03:07:22,870 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-28 03:07:22,871 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-28 03:07:22,871 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-28 03:07:22,871 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2020-10-28 03:07:22,872 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2020-10-28 03:07:22,872 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2020-10-28 03:07:22,872 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2020-10-28 03:07:22,873 INFO L138 BoogieDeclarations]: Found implementation of procedure tty_insert_flip_string [2020-10-28 03:07:22,873 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_register [2020-10-28 03:07:22,873 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_fill_bulk_urb [2020-10-28 03:07:22,873 INFO L138 BoogieDeclarations]: Found implementation of procedure __create_pipe [2020-10-28 03:07:22,874 INFO L138 BoogieDeclarations]: Found implementation of procedure __kfifo_uint_must_check_helper [2020-10-28 03:07:22,874 INFO L138 BoogieDeclarations]: Found implementation of procedure irda_usb_dump_class_desc [2020-10-28 03:07:22,874 INFO L138 BoogieDeclarations]: Found implementation of procedure irda_usb_find_class_desc [2020-10-28 03:07:22,874 INFO L138 BoogieDeclarations]: Found implementation of procedure ir_xbof_change [2020-10-28 03:07:22,874 INFO L138 BoogieDeclarations]: Found implementation of procedure ir_startup [2020-10-28 03:07:22,874 INFO L138 BoogieDeclarations]: Found implementation of procedure ir_open [2020-10-28 03:07:22,875 INFO L138 BoogieDeclarations]: Found implementation of procedure ir_prepare_write_buffer [2020-10-28 03:07:22,875 INFO L138 BoogieDeclarations]: Found implementation of procedure ir_process_read_urb [2020-10-28 03:07:22,876 INFO L138 BoogieDeclarations]: Found implementation of procedure ir_set_termios_callback [2020-10-28 03:07:22,876 INFO L138 BoogieDeclarations]: Found implementation of procedure ir_set_termios [2020-10-28 03:07:22,876 INFO L138 BoogieDeclarations]: Found implementation of procedure ir_init [2020-10-28 03:07:22,877 INFO L138 BoogieDeclarations]: Found implementation of procedure ir_exit [2020-10-28 03:07:22,877 INFO L138 BoogieDeclarations]: Found implementation of procedure init_module [2020-10-28 03:07:22,877 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup_module [2020-10-28 03:07:22,877 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-28 03:07:22,879 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_blast_assert [2020-10-28 03:07:22,879 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume_stop [2020-10-28 03:07:22,879 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_alloc_coherent [2020-10-28 03:07:22,880 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_free_coherent [2020-10-28 03:07:22,880 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_alloc_urb [2020-10-28 03:07:22,880 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_free_urb [2020-10-28 03:07:22,880 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2020-10-28 03:07:22,880 INFO L138 BoogieDeclarations]: Found implementation of procedure __kfifo_out [2020-10-28 03:07:22,881 INFO L138 BoogieDeclarations]: Found implementation of procedure __kfifo_out_r [2020-10-28 03:07:22,881 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2020-10-28 03:07:22,881 INFO L138 BoogieDeclarations]: Found implementation of procedure __kmalloc [2020-10-28 03:07:22,881 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock_irqsave [2020-10-28 03:07:22,881 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_unlock_irqrestore [2020-10-28 03:07:22,881 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_err [2020-10-28 03:07:22,881 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_return_value [2020-10-28 03:07:22,882 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize [2020-10-28 03:07:22,882 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undefined_pointer [2020-10-28 03:07:22,883 INFO L138 BoogieDeclarations]: Found implementation of procedure printk [2020-10-28 03:07:22,883 INFO L138 BoogieDeclarations]: Found implementation of procedure tty_encode_baud_rate [2020-10-28 03:07:22,883 INFO L138 BoogieDeclarations]: Found implementation of procedure tty_flip_buffer_push [2020-10-28 03:07:22,883 INFO L138 BoogieDeclarations]: Found implementation of procedure tty_get_baud_rate [2020-10-28 03:07:22,883 INFO L138 BoogieDeclarations]: Found implementation of procedure tty_insert_flip_string_fixed_flag [2020-10-28 03:07:22,883 INFO L138 BoogieDeclarations]: Found implementation of procedure tty_kref_put [2020-10-28 03:07:22,884 INFO L138 BoogieDeclarations]: Found implementation of procedure tty_port_tty_get [2020-10-28 03:07:22,884 INFO L138 BoogieDeclarations]: Found implementation of procedure tty_termios_copy_hw [2020-10-28 03:07:22,884 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_control_msg [2020-10-28 03:07:22,884 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_deregister [2020-10-28 03:07:22,884 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_register_driver [2020-10-28 03:07:22,885 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_deregister [2020-10-28 03:07:22,885 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_generic_open [2020-10-28 03:07:22,885 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_register [2020-10-28 03:07:22,886 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_submit_urb [2020-10-28 03:07:22,886 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2020-10-28 03:07:22,886 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-28 03:07:22,886 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-28 03:07:22,887 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_perror_fail [2020-10-28 03:07:22,887 INFO L130 BoogieDeclarations]: Found specification of procedure __assert [2020-10-28 03:07:22,887 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-28 03:07:22,887 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-28 03:07:22,887 INFO L130 BoogieDeclarations]: Found specification of procedure printk [2020-10-28 03:07:22,887 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock_irqsave [2020-10-28 03:07:22,888 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_unlock_irqrestore [2020-10-28 03:07:22,888 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2020-10-28 03:07:22,888 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2020-10-28 03:07:22,888 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2020-10-28 03:07:22,888 INFO L130 BoogieDeclarations]: Found specification of procedure __kmalloc [2020-10-28 03:07:22,889 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2020-10-28 03:07:22,889 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2020-10-28 03:07:22,891 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2020-10-28 03:07:22,891 INFO L130 BoogieDeclarations]: Found specification of procedure init_module [2020-10-28 03:07:22,892 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup_module [2020-10-28 03:07:22,892 INFO L130 BoogieDeclarations]: Found specification of procedure dev_err [2020-10-28 03:07:22,892 INFO L130 BoogieDeclarations]: Found specification of procedure tty_kref_put [2020-10-28 03:07:22,892 INFO L130 BoogieDeclarations]: Found specification of procedure tty_flip_buffer_push [2020-10-28 03:07:22,893 INFO L130 BoogieDeclarations]: Found specification of procedure tty_get_baud_rate [2020-10-28 03:07:22,893 INFO L130 BoogieDeclarations]: Found specification of procedure tty_encode_baud_rate [2020-10-28 03:07:22,893 INFO L130 BoogieDeclarations]: Found specification of procedure tty_termios_copy_hw [2020-10-28 03:07:22,893 INFO L130 BoogieDeclarations]: Found specification of procedure tty_port_tty_get [2020-10-28 03:07:22,894 INFO L130 BoogieDeclarations]: Found specification of procedure tty_insert_flip_string_fixed_flag [2020-10-28 03:07:22,894 INFO L130 BoogieDeclarations]: Found specification of procedure tty_insert_flip_string [2020-10-28 03:07:22,894 INFO L130 BoogieDeclarations]: Found specification of procedure usb_register_driver [2020-10-28 03:07:22,895 INFO L130 BoogieDeclarations]: Found specification of procedure usb_register [2020-10-28 03:07:22,895 INFO L130 BoogieDeclarations]: Found specification of procedure usb_deregister [2020-10-28 03:07:22,895 INFO L130 BoogieDeclarations]: Found specification of procedure usb_fill_bulk_urb [2020-10-28 03:07:22,895 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-10-28 03:07:22,895 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-28 03:07:22,896 INFO L130 BoogieDeclarations]: Found specification of procedure usb_alloc_urb [2020-10-28 03:07:22,896 INFO L130 BoogieDeclarations]: Found specification of procedure usb_free_urb [2020-10-28 03:07:22,896 INFO L130 BoogieDeclarations]: Found specification of procedure usb_submit_urb [2020-10-28 03:07:22,896 INFO L130 BoogieDeclarations]: Found specification of procedure usb_alloc_coherent [2020-10-28 03:07:22,896 INFO L130 BoogieDeclarations]: Found specification of procedure usb_free_coherent [2020-10-28 03:07:22,896 INFO L130 BoogieDeclarations]: Found specification of procedure usb_control_msg [2020-10-28 03:07:22,897 INFO L130 BoogieDeclarations]: Found specification of procedure __create_pipe [2020-10-28 03:07:22,897 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-28 03:07:22,897 INFO L130 BoogieDeclarations]: Found specification of procedure __kfifo_uint_must_check_helper [2020-10-28 03:07:22,897 INFO L130 BoogieDeclarations]: Found specification of procedure __kfifo_out [2020-10-28 03:07:22,897 INFO L130 BoogieDeclarations]: Found specification of procedure __kfifo_out_r [2020-10-28 03:07:22,897 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_register [2020-10-28 03:07:22,897 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_deregister [2020-10-28 03:07:22,898 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_probe [2020-10-28 03:07:22,898 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_disconnect [2020-10-28 03:07:22,898 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_generic_open [2020-10-28 03:07:22,898 INFO L130 BoogieDeclarations]: Found specification of procedure ir_startup [2020-10-28 03:07:22,899 INFO L130 BoogieDeclarations]: Found specification of procedure ir_open [2020-10-28 03:07:22,899 INFO L130 BoogieDeclarations]: Found specification of procedure ir_prepare_write_buffer [2020-10-28 03:07:22,899 INFO L130 BoogieDeclarations]: Found specification of procedure ir_process_read_urb [2020-10-28 03:07:22,899 INFO L130 BoogieDeclarations]: Found specification of procedure ir_set_termios [2020-10-28 03:07:22,900 INFO L130 BoogieDeclarations]: Found specification of procedure irda_usb_dump_class_desc [2020-10-28 03:07:22,900 INFO L130 BoogieDeclarations]: Found specification of procedure irda_usb_find_class_desc [2020-10-28 03:07:22,900 INFO L130 BoogieDeclarations]: Found specification of procedure ir_xbof_change [2020-10-28 03:07:22,900 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-10-28 03:07:22,901 INFO L130 BoogieDeclarations]: Found specification of procedure ir_set_termios_callback [2020-10-28 03:07:22,901 INFO L130 BoogieDeclarations]: Found specification of procedure ir_init [2020-10-28 03:07:22,901 INFO L130 BoogieDeclarations]: Found specification of procedure ir_exit [2020-10-28 03:07:22,901 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2020-10-28 03:07:22,901 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_return_value [2020-10-28 03:07:22,902 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize [2020-10-28 03:07:22,902 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-28 03:07:22,902 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-28 03:07:22,902 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_blast_assert [2020-10-28 03:07:22,902 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undefined_pointer [2020-10-28 03:07:22,902 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume_stop [2020-10-28 03:07:22,903 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uint [2020-10-28 03:07:22,903 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_bool [2020-10-28 03:07:22,903 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-10-28 03:07:22,903 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2020-10-28 03:07:22,904 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-10-28 03:07:22,905 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_ulong [2020-10-28 03:07:22,908 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-10-28 03:07:22,908 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-28 03:07:22,908 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-28 03:07:22,908 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-28 03:07:22,908 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2020-10-28 03:07:22,909 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-28 03:07:23,583 WARN L798 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2020-10-28 03:07:23,687 INFO L751 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##28: assume !false; [2020-10-28 03:07:23,687 INFO L751 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##27: assume false; [2020-10-28 03:07:23,717 WARN L798 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2020-10-28 03:07:23,755 INFO L751 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##25: assume !false; [2020-10-28 03:07:23,756 INFO L751 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##24: assume false; [2020-10-28 03:07:24,101 INFO L751 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_assume_stopFINAL: assume true; [2020-10-28 03:07:24,107 WARN L798 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2020-10-28 03:07:24,134 INFO L751 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##20: assume !false; [2020-10-28 03:07:24,134 INFO L751 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##19: assume false; [2020-10-28 03:07:27,978 WARN L798 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2020-10-28 03:07:28,075 INFO L751 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##54: assume false; [2020-10-28 03:07:28,075 INFO L751 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##55: assume !false; [2020-10-28 03:07:28,136 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-28 03:07:28,137 INFO L298 CfgBuilder]: Removed 27 assume(true) statements. [2020-10-28 03:07:28,141 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 03:07:28 BoogieIcfgContainer [2020-10-28 03:07:28,142 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-28 03:07:28,145 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-28 03:07:28,145 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-28 03:07:28,148 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-28 03:07:28,149 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.10 03:07:21" (1/3) ... [2020-10-28 03:07:28,149 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@251dc325 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.10 03:07:28, skipping insertion in model container [2020-10-28 03:07:28,149 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 03:07:22" (2/3) ... [2020-10-28 03:07:28,150 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@251dc325 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.10 03:07:28, skipping insertion in model container [2020-10-28 03:07:28,150 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 03:07:28" (3/3) ... [2020-10-28 03:07:28,152 INFO L111 eAbstractionObserver]: Analyzing ICFG usb_urb-drivers-usb-serial-ir-usb.ko.cil.out.i [2020-10-28 03:07:28,164 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-28 03:07:28,171 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-28 03:07:28,186 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-28 03:07:28,231 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-28 03:07:28,231 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-28 03:07:28,231 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-28 03:07:28,231 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-28 03:07:28,231 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-28 03:07:28,231 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-28 03:07:28,231 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-28 03:07:28,231 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-28 03:07:28,273 INFO L276 IsEmpty]: Start isEmpty. Operand 447 states. [2020-10-28 03:07:28,280 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2020-10-28 03:07:28,280 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 03:07:28,281 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] [2020-10-28 03:07:28,281 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 03:07:28,289 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 03:07:28,289 INFO L82 PathProgramCache]: Analyzing trace with hash -1725654207, now seen corresponding path program 1 times [2020-10-28 03:07:28,299 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 03:07:28,299 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [656561776] [2020-10-28 03:07:28,300 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 03:07:28,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 03:07:29,077 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 03:07:31,990 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 03:07:33,926 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 03:07:33,926 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 47 [2020-10-28 03:07:33,926 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-28 03:07:33,926 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5088 [2020-10-28 03:07:33,929 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 03:07:33,929 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 03:07:33,929 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-28 03:07:33,930 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 34 [2020-10-28 03:07:33,930 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-28 03:07:37,077 WARN L193 SmtUtils]: Spent 2.94 s on a formula simplification that was a NOOP. DAG size: 691 [2020-10-28 03:07:37,080 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 03:07:37,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 03:07:37,283 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 03:07:38,226 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 03:07:38,226 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 03:07:38,226 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 03:07:38,227 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1038 [2020-10-28 03:07:38,227 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 03:07:38,227 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 03:07:38,227 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 03:07:38,227 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-28 03:07:38,227 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 03:07:38,314 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-28 03:07:38,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 03:07:38,319 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 03:07:38,323 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 03:07:38,323 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-28 03:07:38,323 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 03:07:38,323 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-28 03:07:38,324 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 03:07:38,324 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 03:07:38,324 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 03:07:38,324 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-28 03:07:38,324 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 03:07:38,354 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-28 03:07:38,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 03:07:38,366 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 03:07:38,385 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 03:07:38,385 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-10-28 03:07:38,385 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 03:07:38,385 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-10-28 03:07:38,386 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 03:07:38,386 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 03:07:38,386 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 03:07:38,386 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-10-28 03:07:38,386 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 03:07:38,394 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 03:07:38,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 03:07:38,398 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 03:07:38,401 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 03:07:38,402 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 03:07:38,402 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 03:07:38,402 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-28 03:07:38,402 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 03:07:38,402 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 03:07:38,402 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 03:07:38,403 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 03:07:38,403 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 03:07:38,424 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-28 03:07:38,425 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [656561776] [2020-10-28 03:07:38,427 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-28 03:07:38,427 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-28 03:07:38,428 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [41061331] [2020-10-28 03:07:38,432 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-28 03:07:38,433 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 03:07:38,447 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-28 03:07:38,448 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-28 03:07:38,450 INFO L87 Difference]: Start difference. First operand 447 states. Second operand 5 states. [2020-10-28 03:07:41,487 WARN L193 SmtUtils]: Spent 3.00 s on a formula simplification that was a NOOP. DAG size: 700 [2020-10-28 03:07:46,677 WARN L193 SmtUtils]: Spent 2.96 s on a formula simplification that was a NOOP. DAG size: 702 [2020-10-28 03:07:49,747 WARN L193 SmtUtils]: Spent 2.91 s on a formula simplification that was a NOOP. DAG size: 693 [2020-10-28 03:08:05,513 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 03:08:05,514 INFO L93 Difference]: Finished difference Result 1470 states and 2100 transitions. [2020-10-28 03:08:05,514 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-28 03:08:05,516 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 29 [2020-10-28 03:08:05,516 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 03:08:05,545 INFO L225 Difference]: With dead ends: 1470 [2020-10-28 03:08:05,545 INFO L226 Difference]: Without dead ends: 1063 [2020-10-28 03:08:05,562 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 11.9s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2020-10-28 03:08:05,587 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1063 states. [2020-10-28 03:08:06,211 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1063 to 791. [2020-10-28 03:08:06,213 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 791 states. [2020-10-28 03:08:06,222 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 791 states to 791 states and 976 transitions. [2020-10-28 03:08:06,231 INFO L78 Accepts]: Start accepts. Automaton has 791 states and 976 transitions. Word has length 29 [2020-10-28 03:08:06,232 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 03:08:06,232 INFO L481 AbstractCegarLoop]: Abstraction has 791 states and 976 transitions. [2020-10-28 03:08:06,232 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-28 03:08:06,232 INFO L276 IsEmpty]: Start isEmpty. Operand 791 states and 976 transitions. [2020-10-28 03:08:06,233 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2020-10-28 03:08:06,233 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 03:08:06,234 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] [2020-10-28 03:08:06,234 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-28 03:08:06,234 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 03:08:06,235 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 03:08:06,235 INFO L82 PathProgramCache]: Analyzing trace with hash -2140840293, now seen corresponding path program 1 times [2020-10-28 03:08:06,235 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 03:08:06,236 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1187034313] [2020-10-28 03:08:06,236 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 03:08:06,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 03:08:06,437 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 03:08:07,580 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 03:08:11,701 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 03:08:11,701 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 48 [2020-10-28 03:08:11,702 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-28 03:08:11,702 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5345 [2020-10-28 03:08:11,702 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 03:08:11,702 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 03:08:11,702 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-28 03:08:11,702 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 35 [2020-10-28 03:08:11,702 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 03:08:14,828 WARN L193 SmtUtils]: Spent 2.96 s on a formula simplification that was a NOOP. DAG size: 691 [2020-10-28 03:08:14,831 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 03:08:14,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 03:08:14,960 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 03:08:15,874 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 03:08:15,874 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 03:08:15,874 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 03:08:15,874 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 970 [2020-10-28 03:08:15,874 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 03:08:15,875 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 03:08:15,875 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 03:08:15,875 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-28 03:08:15,875 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 03:08:15,951 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-28 03:08:15,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 03:08:15,956 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 03:08:15,958 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 03:08:15,959 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-28 03:08:15,959 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 03:08:15,959 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-28 03:08:15,959 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 03:08:15,959 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 03:08:15,959 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 03:08:15,959 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-28 03:08:15,960 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 03:08:15,987 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-28 03:08:15,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 03:08:15,997 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 03:08:16,012 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 03:08:16,012 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-10-28 03:08:16,012 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 03:08:16,013 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-10-28 03:08:16,013 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 03:08:16,013 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 03:08:16,013 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 03:08:16,013 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-10-28 03:08:16,013 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 03:08:16,020 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 03:08:16,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 03:08:16,024 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 03:08:16,026 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 03:08:16,027 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 03:08:16,027 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 03:08:16,027 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-28 03:08:16,027 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 03:08:16,027 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 03:08:16,027 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 03:08:16,028 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 03:08:16,028 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 03:08:16,044 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-28 03:08:16,044 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1187034313] [2020-10-28 03:08:16,045 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-28 03:08:16,045 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-28 03:08:16,045 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1314575904] [2020-10-28 03:08:16,046 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-28 03:08:16,047 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 03:08:16,047 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-28 03:08:16,047 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-28 03:08:16,047 INFO L87 Difference]: Start difference. First operand 791 states and 976 transitions. Second operand 5 states. [2020-10-28 03:08:18,911 WARN L193 SmtUtils]: Spent 2.84 s on a formula simplification that was a NOOP. DAG size: 700 [2020-10-28 03:08:24,021 WARN L193 SmtUtils]: Spent 2.91 s on a formula simplification that was a NOOP. DAG size: 702 [2020-10-28 03:08:27,018 WARN L193 SmtUtils]: Spent 2.85 s on a formula simplification that was a NOOP. DAG size: 693 [2020-10-28 03:08:34,435 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 03:08:34,435 INFO L93 Difference]: Finished difference Result 1062 states and 1384 transitions. [2020-10-28 03:08:34,437 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-28 03:08:34,437 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 30 [2020-10-28 03:08:34,437 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 03:08:34,450 INFO L225 Difference]: With dead ends: 1062 [2020-10-28 03:08:34,451 INFO L226 Difference]: Without dead ends: 1044 [2020-10-28 03:08:34,452 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 11.7s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2020-10-28 03:08:34,454 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1044 states. [2020-10-28 03:08:34,965 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1044 to 779. [2020-10-28 03:08:34,966 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 779 states. [2020-10-28 03:08:34,970 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 779 states to 779 states and 959 transitions. [2020-10-28 03:08:34,972 INFO L78 Accepts]: Start accepts. Automaton has 779 states and 959 transitions. Word has length 30 [2020-10-28 03:08:34,972 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 03:08:34,972 INFO L481 AbstractCegarLoop]: Abstraction has 779 states and 959 transitions. [2020-10-28 03:08:34,972 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-28 03:08:34,972 INFO L276 IsEmpty]: Start isEmpty. Operand 779 states and 959 transitions. [2020-10-28 03:08:34,990 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2020-10-28 03:08:34,990 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 03:08:34,991 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 03:08:34,991 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-28 03:08:34,991 INFO L429 AbstractCegarLoop]: === Iteration 3 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 03:08:34,992 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 03:08:34,992 INFO L82 PathProgramCache]: Analyzing trace with hash 1773536882, now seen corresponding path program 1 times [2020-10-28 03:08:34,992 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 03:08:34,992 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [493019934] [2020-10-28 03:08:34,993 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 03:08:35,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 03:08:35,175 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 03:08:37,694 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 03:08:38,473 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 03:08:40,277 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 03:08:40,277 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 146 [2020-10-28 03:08:40,277 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-28 03:08:40,278 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5177 [2020-10-28 03:08:40,278 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 03:08:40,278 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 03:08:40,278 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 102 [2020-10-28 03:08:40,280 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-28 03:08:40,280 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-28 03:08:43,324 WARN L193 SmtUtils]: Spent 2.85 s on a formula simplification that was a NOOP. DAG size: 691 [2020-10-28 03:08:43,325 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 03:08:43,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 03:08:43,362 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 03:08:43,950 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 03:08:43,950 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 03:08:43,950 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 03:08:43,951 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 598 [2020-10-28 03:08:43,951 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 03:08:43,951 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 03:08:43,951 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 03:08:43,951 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 03:08:43,952 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 03:08:44,017 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-28 03:08:44,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 03:08:44,022 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 03:08:44,024 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 03:08:44,024 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-28 03:08:44,024 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 03:08:44,024 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-28 03:08:44,024 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 03:08:44,024 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 03:08:44,025 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 03:08:44,025 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 03:08:44,025 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 03:08:44,051 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-28 03:08:44,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 03:08:44,056 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 03:08:44,063 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 03:08:44,063 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-10-28 03:08:44,063 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 03:08:44,063 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-28 03:08:44,064 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 03:08:44,064 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 03:08:44,064 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 03:08:44,064 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 03:08:44,064 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 03:08:44,070 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 03:08:44,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 03:08:44,073 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 03:08:44,074 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 03:08:44,075 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 03:08:44,075 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 03:08:44,075 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-28 03:08:44,075 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 03:08:44,075 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 03:08:44,075 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 03:08:44,075 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 03:08:44,076 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 03:08:44,079 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2020-10-28 03:08:44,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 03:08:44,083 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 03:08:44,085 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 03:08:44,085 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 03:08:44,085 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 03:08:44,085 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-28 03:08:44,085 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 03:08:44,085 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 03:08:44,085 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 03:08:44,086 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 03:08:44,086 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 03:08:44,089 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2020-10-28 03:08:44,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 03:08:44,092 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 03:08:44,095 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 03:08:44,095 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-28 03:08:44,095 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 03:08:44,095 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-28 03:08:44,096 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 03:08:44,096 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 03:08:44,096 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 03:08:44,096 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 03:08:44,096 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 03:08:44,100 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2020-10-28 03:08:44,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 03:08:44,105 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 03:08:44,108 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 03:08:44,108 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 03:08:44,108 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 03:08:44,108 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-28 03:08:44,109 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 03:08:44,109 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 03:08:44,109 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 03:08:44,109 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 03:08:44,109 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 03:08:44,115 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2020-10-28 03:08:44,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 03:08:44,119 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 03:08:44,120 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 03:08:44,120 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 03:08:44,120 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 03:08:44,120 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-28 03:08:44,121 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 03:08:44,121 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 03:08:44,121 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 03:08:44,121 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 03:08:44,121 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 03:08:44,152 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2020-10-28 03:08:44,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 03:08:44,169 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 03:08:44,199 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 03:08:44,199 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 24 [2020-10-28 03:08:44,200 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 03:08:44,200 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 40 [2020-10-28 03:08:44,200 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 03:08:44,200 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-28 03:08:44,200 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 03:08:44,200 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 20 [2020-10-28 03:08:44,201 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 03:08:44,270 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 03:08:44,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 03:08:44,278 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 03:08:44,285 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 03:08:44,285 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-28 03:08:44,285 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 03:08:44,285 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-28 03:08:44,285 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 03:08:44,285 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 03:08:44,286 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 03:08:44,286 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 03:08:44,286 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 03:08:44,292 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 03:08:44,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 03:08:44,300 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 03:08:44,303 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 03:08:44,303 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-28 03:08:44,303 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 03:08:44,303 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-28 03:08:44,303 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 03:08:44,304 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 03:08:44,304 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 03:08:44,304 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 03:08:44,304 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 03:08:44,311 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2020-10-28 03:08:44,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 03:08:44,324 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 03:08:44,336 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 03:08:44,336 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-10-28 03:08:44,336 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 03:08:44,337 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-28 03:08:44,337 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 03:08:44,337 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 03:08:44,337 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 20 [2020-10-28 03:08:44,337 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 03:08:44,337 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 03:08:44,351 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-28 03:08:44,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 03:08:44,360 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 03:08:44,368 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 03:08:44,369 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-28 03:08:44,369 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 03:08:44,369 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-28 03:08:44,369 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 03:08:44,369 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 03:08:44,369 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 03:08:44,370 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 03:08:44,370 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 03:08:44,376 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-28 03:08:44,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 03:08:44,380 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 03:08:44,383 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 03:08:44,383 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-28 03:08:44,383 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 03:08:44,383 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-28 03:08:44,383 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 03:08:44,384 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 03:08:44,384 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 03:08:44,384 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 03:08:44,384 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 03:08:44,431 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-10-28 03:08:44,433 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [493019934] [2020-10-28 03:08:44,433 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-28 03:08:44,433 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-10-28 03:08:44,434 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1068509741] [2020-10-28 03:08:44,435 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-28 03:08:44,435 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 03:08:44,435 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-28 03:08:44,436 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2020-10-28 03:08:44,436 INFO L87 Difference]: Start difference. First operand 779 states and 959 transitions. Second operand 9 states. [2020-10-28 03:08:47,491 WARN L193 SmtUtils]: Spent 3.01 s on a formula simplification that was a NOOP. DAG size: 700 [2020-10-28 03:09:01,263 WARN L193 SmtUtils]: Spent 3.04 s on a formula simplification that was a NOOP. DAG size: 707 [2020-10-28 03:09:03,416 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 03:09:03,417 INFO L93 Difference]: Finished difference Result 1897 states and 2529 transitions. [2020-10-28 03:09:03,418 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-10-28 03:09:03,418 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 106 [2020-10-28 03:09:03,419 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 03:09:03,428 INFO L225 Difference]: With dead ends: 1897 [2020-10-28 03:09:03,428 INFO L226 Difference]: Without dead ends: 1156 [2020-10-28 03:09:03,431 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 43 ImplicationChecksByTransitivity, 9.3s TimeCoverageRelationStatistics Valid=85, Invalid=257, Unknown=0, NotChecked=0, Total=342 [2020-10-28 03:09:03,433 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1156 states. [2020-10-28 03:09:03,912 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1156 to 761. [2020-10-28 03:09:03,912 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 761 states. [2020-10-28 03:09:03,916 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 761 states to 761 states and 933 transitions. [2020-10-28 03:09:03,916 INFO L78 Accepts]: Start accepts. Automaton has 761 states and 933 transitions. Word has length 106 [2020-10-28 03:09:03,917 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 03:09:03,917 INFO L481 AbstractCegarLoop]: Abstraction has 761 states and 933 transitions. [2020-10-28 03:09:03,917 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-28 03:09:03,917 INFO L276 IsEmpty]: Start isEmpty. Operand 761 states and 933 transitions. [2020-10-28 03:09:03,920 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2020-10-28 03:09:03,920 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 03:09:03,920 INFO L422 BasicCegarLoop]: trace histogram [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] [2020-10-28 03:09:03,921 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-28 03:09:03,921 INFO L429 AbstractCegarLoop]: === Iteration 4 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 03:09:03,921 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 03:09:03,921 INFO L82 PathProgramCache]: Analyzing trace with hash 1712027642, now seen corresponding path program 1 times [2020-10-28 03:09:03,922 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 03:09:03,922 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1242376230] [2020-10-28 03:09:03,922 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 03:09:04,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 03:09:04,075 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 03:09:07,035 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 03:09:07,090 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 03:09:07,146 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 03:09:09,012 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 03:09:09,012 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 142 [2020-10-28 03:09:09,013 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-28 03:09:09,013 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5002 [2020-10-28 03:09:09,013 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 03:09:09,014 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 03:09:09,014 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 102 [2020-10-28 03:09:09,014 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-28 03:09:09,014 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 03:09:11,968 WARN L193 SmtUtils]: Spent 2.86 s on a formula simplification that was a NOOP. DAG size: 691 [2020-10-28 03:09:11,970 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 03:09:11,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 03:09:12,007 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 03:09:12,470 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 03:09:12,470 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 03:09:12,470 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 03:09:12,470 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 472 [2020-10-28 03:09:12,470 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 03:09:12,471 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 03:09:12,471 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 03:09:12,471 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 03:09:12,471 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 03:09:12,529 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-28 03:09:12,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 03:09:12,533 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 03:09:12,534 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 03:09:12,534 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-28 03:09:12,534 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 03:09:12,535 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-28 03:09:12,535 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 03:09:12,535 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 03:09:12,535 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 03:09:12,535 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 03:09:12,535 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 03:09:12,559 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-28 03:09:12,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 03:09:12,563 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 03:09:12,570 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 03:09:12,570 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-10-28 03:09:12,570 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 03:09:12,570 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-28 03:09:12,570 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 03:09:12,570 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 03:09:12,571 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 03:09:12,571 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 03:09:12,571 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 03:09:12,576 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 03:09:12,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 03:09:12,579 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 03:09:12,581 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 03:09:12,581 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 03:09:12,581 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 03:09:12,581 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-28 03:09:12,581 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 03:09:12,582 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 03:09:12,582 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 03:09:12,582 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 03:09:12,582 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 03:09:12,615 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2020-10-28 03:09:12,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 03:09:12,631 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 03:09:12,675 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 03:09:12,817 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 03:09:12,817 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 70 [2020-10-28 03:09:12,817 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-28 03:09:12,817 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 192 [2020-10-28 03:09:12,817 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 03:09:12,817 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 03:09:12,818 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 60 [2020-10-28 03:09:12,818 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-28 03:09:12,818 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 03:09:12,872 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-10-28 03:09:12,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 03:09:12,876 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 03:09:12,877 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 03:09:12,877 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 03:09:12,877 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 03:09:12,878 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-28 03:09:12,878 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 03:09:12,878 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 03:09:12,878 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 03:09:12,878 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 03:09:12,878 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 03:09:12,881 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-10-28 03:09:12,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 03:09:12,885 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 03:09:12,887 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 03:09:12,887 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-28 03:09:12,887 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 03:09:12,887 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-28 03:09:12,888 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 03:09:12,888 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 03:09:12,888 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 03:09:12,888 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 03:09:12,888 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 03:09:12,892 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-10-28 03:09:12,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 03:09:12,896 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 03:09:12,897 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 03:09:12,897 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 03:09:12,897 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 03:09:12,897 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-28 03:09:12,898 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 03:09:12,898 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 03:09:12,898 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 03:09:12,898 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 03:09:12,898 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 03:09:12,901 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2020-10-28 03:09:12,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 03:09:12,904 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 03:09:12,905 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 03:09:12,905 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 03:09:12,905 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 03:09:12,906 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-28 03:09:12,906 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 03:09:12,906 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 03:09:12,906 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 03:09:12,906 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 03:09:12,906 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 03:09:12,937 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2020-10-28 03:09:12,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 03:09:12,947 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 03:09:12,959 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 03:09:13,013 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 03:09:13,014 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 24 [2020-10-28 03:09:13,014 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-28 03:09:13,015 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 71 [2020-10-28 03:09:13,015 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 03:09:13,015 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-28 03:09:13,015 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-28 03:09:13,015 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-28 03:09:13,015 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 03:09:13,103 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 03:09:13,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 03:09:13,111 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 03:09:13,129 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 03:09:13,130 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-28 03:09:13,130 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 03:09:13,130 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-10-28 03:09:13,130 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 03:09:13,130 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-28 03:09:13,131 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 03:09:13,131 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-28 03:09:13,131 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 03:09:13,211 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 03:09:13,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 03:09:13,217 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 03:09:13,223 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 03:09:13,223 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-28 03:09:13,223 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 03:09:13,223 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-28 03:09:13,223 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 03:09:13,223 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-28 03:09:13,224 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 03:09:13,224 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-28 03:09:13,224 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 03:09:13,273 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2020-10-28 03:09:13,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 03:09:13,278 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 03:09:13,281 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 03:09:13,281 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-10-28 03:09:13,281 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 03:09:13,281 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-28 03:09:13,282 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 03:09:13,282 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 03:09:13,282 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-10-28 03:09:13,282 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 03:09:13,282 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 03:09:13,285 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 03:09:13,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 03:09:13,288 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 03:09:13,289 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 03:09:13,289 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 03:09:13,290 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 03:09:13,290 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-28 03:09:13,290 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 03:09:13,290 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 03:09:13,290 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 03:09:13,290 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 03:09:13,290 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 03:09:13,293 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-10-28 03:09:13,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 03:09:13,296 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 03:09:13,297 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 03:09:13,298 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 03:09:13,298 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 03:09:13,298 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-28 03:09:13,298 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 03:09:13,298 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 03:09:13,298 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 03:09:13,298 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 03:09:13,299 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 03:09:13,342 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-28 03:09:13,342 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1242376230] [2020-10-28 03:09:13,342 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-28 03:09:13,342 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2020-10-28 03:09:13,343 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1979731159] [2020-10-28 03:09:13,343 INFO L461 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-10-28 03:09:13,343 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 03:09:13,344 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-10-28 03:09:13,344 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=151, Unknown=0, NotChecked=0, Total=182 [2020-10-28 03:09:13,344 INFO L87 Difference]: Start difference. First operand 761 states and 933 transitions. Second operand 14 states. [2020-10-28 03:09:16,340 WARN L193 SmtUtils]: Spent 2.94 s on a formula simplification that was a NOOP. DAG size: 700 [2020-10-28 03:09:24,247 WARN L193 SmtUtils]: Spent 3.04 s on a formula simplification that was a NOOP. DAG size: 707 [2020-10-28 03:09:35,302 WARN L193 SmtUtils]: Spent 3.07 s on a formula simplification that was a NOOP. DAG size: 707 [2020-10-28 03:09:38,411 WARN L193 SmtUtils]: Spent 3.05 s on a formula simplification that was a NOOP. DAG size: 707 [2020-10-28 03:09:41,521 WARN L193 SmtUtils]: Spent 2.99 s on a formula simplification that was a NOOP. DAG size: 705 [2020-10-28 03:09:44,558 WARN L193 SmtUtils]: Spent 2.98 s on a formula simplification that was a NOOP. DAG size: 705 [2020-10-28 03:09:48,185 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 03:09:48,186 INFO L93 Difference]: Finished difference Result 1501 states and 1983 transitions. [2020-10-28 03:09:48,187 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-10-28 03:09:48,187 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 102 [2020-10-28 03:09:48,188 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 03:09:48,196 INFO L225 Difference]: With dead ends: 1501 [2020-10-28 03:09:48,196 INFO L226 Difference]: Without dead ends: 1108 [2020-10-28 03:09:48,199 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 61 ImplicationChecksByTransitivity, 21.6s TimeCoverageRelationStatistics Valid=116, Invalid=436, Unknown=0, NotChecked=0, Total=552 [2020-10-28 03:09:48,200 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1108 states. [2020-10-28 03:09:48,620 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1108 to 768. [2020-10-28 03:09:48,620 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 768 states. [2020-10-28 03:09:48,623 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 768 states to 768 states and 941 transitions. [2020-10-28 03:09:48,623 INFO L78 Accepts]: Start accepts. Automaton has 768 states and 941 transitions. Word has length 102 [2020-10-28 03:09:48,624 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 03:09:48,624 INFO L481 AbstractCegarLoop]: Abstraction has 768 states and 941 transitions. [2020-10-28 03:09:48,624 INFO L482 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-10-28 03:09:48,624 INFO L276 IsEmpty]: Start isEmpty. Operand 768 states and 941 transitions. [2020-10-28 03:09:48,626 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2020-10-28 03:09:48,627 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 03:09:48,627 INFO L422 BasicCegarLoop]: trace histogram [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] [2020-10-28 03:09:48,627 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-28 03:09:48,627 INFO L429 AbstractCegarLoop]: === Iteration 5 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 03:09:48,628 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 03:09:48,628 INFO L82 PathProgramCache]: Analyzing trace with hash -857458757, now seen corresponding path program 1 times [2020-10-28 03:09:48,628 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 03:09:48,629 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1778716840] [2020-10-28 03:09:48,629 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 03:09:48,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 03:09:48,766 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 03:09:50,866 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 03:09:50,912 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 03:09:53,937 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 03:09:53,937 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 142 [2020-10-28 03:09:53,937 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-28 03:09:53,938 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5229 [2020-10-28 03:09:53,938 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 03:09:53,938 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 03:09:53,938 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 102 [2020-10-28 03:09:53,938 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-28 03:09:53,938 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 03:09:57,080 WARN L193 SmtUtils]: Spent 3.05 s on a formula simplification that was a NOOP. DAG size: 691 [2020-10-28 03:09:57,082 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 03:09:57,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 03:09:57,114 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 03:09:57,436 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 03:09:57,436 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 03:09:57,436 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 03:09:57,436 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 329 [2020-10-28 03:09:57,436 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 03:09:57,437 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 03:09:57,437 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 03:09:57,437 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 03:09:57,437 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 03:09:57,492 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-28 03:09:57,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 03:09:57,496 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 03:09:57,497 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 03:09:57,497 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-28 03:09:57,497 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 03:09:57,498 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-28 03:09:57,498 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 03:09:57,498 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 03:09:57,498 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 03:09:57,498 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 03:09:57,498 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 03:09:57,528 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-28 03:09:57,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 03:09:57,533 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 03:09:57,538 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 03:09:57,538 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-10-28 03:09:57,538 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 03:09:57,539 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-28 03:09:57,539 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 03:09:57,539 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 03:09:57,539 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 03:09:57,539 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 03:09:57,539 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 03:09:57,544 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 03:09:57,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 03:09:57,547 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 03:09:57,548 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 03:09:57,548 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 03:09:57,549 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 03:09:57,549 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-28 03:09:57,549 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 03:09:57,549 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 03:09:57,549 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 03:09:57,549 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 03:09:57,549 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 03:09:57,602 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2020-10-28 03:09:57,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 03:09:57,618 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 03:09:57,687 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 03:09:57,687 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 70 [2020-10-28 03:09:57,687 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 03:09:57,687 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 75 [2020-10-28 03:09:57,688 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 03:09:57,688 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 03:09:57,688 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 60 [2020-10-28 03:09:57,688 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-28 03:09:57,688 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 03:09:57,769 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-10-28 03:09:57,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 03:09:57,774 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 03:09:57,776 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 03:09:57,776 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 03:09:57,776 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 03:09:57,777 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-28 03:09:57,777 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 03:09:57,777 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 03:09:57,777 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 03:09:57,778 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 03:09:57,778 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 03:09:57,782 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-10-28 03:09:57,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 03:09:57,786 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 03:09:57,790 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 03:09:57,790 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-28 03:09:57,791 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 03:09:57,791 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-28 03:09:57,791 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 03:09:57,791 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 03:09:57,792 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 03:09:57,792 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 03:09:57,792 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 03:09:57,797 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-10-28 03:09:57,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 03:09:57,802 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 03:09:57,804 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 03:09:57,804 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 03:09:57,804 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 03:09:57,805 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-28 03:09:57,805 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 03:09:57,805 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 03:09:57,805 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 03:09:57,805 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 03:09:57,805 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 03:09:57,808 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2020-10-28 03:09:57,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 03:09:57,813 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 03:09:57,814 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 03:09:57,814 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 03:09:57,815 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 03:09:57,815 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-28 03:09:57,815 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 03:09:57,815 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 03:09:57,815 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 03:09:57,815 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 03:09:57,816 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 03:09:57,859 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2020-10-28 03:09:57,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 03:09:57,871 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 03:09:57,891 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 03:09:57,891 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 24 [2020-10-28 03:09:57,892 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 03:09:57,892 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-10-28 03:09:57,892 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 03:09:57,892 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-28 03:09:57,893 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 03:09:57,893 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 20 [2020-10-28 03:09:57,893 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 03:09:57,985 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 03:09:57,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 03:09:57,992 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 03:09:57,998 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 03:09:57,998 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-28 03:09:57,998 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 03:09:57,998 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-28 03:09:57,999 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 03:09:57,999 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 03:09:57,999 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 03:09:57,999 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 03:09:57,999 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 03:09:58,003 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 03:09:58,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 03:09:58,008 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 03:09:58,010 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 03:09:58,010 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-28 03:09:58,010 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 03:09:58,010 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-28 03:09:58,011 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 03:09:58,011 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 03:09:58,011 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 03:09:58,011 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 03:09:58,011 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 03:09:58,023 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2020-10-28 03:09:58,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 03:09:58,029 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 03:09:58,033 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 03:09:58,033 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-10-28 03:09:58,033 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 03:09:58,034 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-28 03:09:58,034 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 03:09:58,034 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 03:09:58,034 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-10-28 03:09:58,035 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 03:09:58,035 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 03:09:58,039 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 03:09:58,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 03:09:58,045 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 03:09:58,046 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 03:09:58,047 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 03:09:58,047 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 03:09:58,047 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-28 03:09:58,047 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 03:09:58,048 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 03:09:58,048 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 03:09:58,048 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 03:09:58,048 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 03:09:58,053 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-10-28 03:09:58,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 03:09:58,057 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 03:09:58,058 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 03:09:58,059 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 03:09:58,059 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 03:09:58,059 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-28 03:09:58,059 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 03:09:58,060 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 03:09:58,060 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 03:09:58,060 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 03:09:58,060 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 03:09:58,187 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-28 03:09:58,188 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1778716840] [2020-10-28 03:09:58,191 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-28 03:09:58,191 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-10-28 03:09:58,192 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2056763762] [2020-10-28 03:09:58,192 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-28 03:09:58,192 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 03:09:58,193 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-28 03:09:58,193 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2020-10-28 03:09:58,193 INFO L87 Difference]: Start difference. First operand 768 states and 941 transitions. Second operand 10 states. [2020-10-28 03:10:01,078 WARN L193 SmtUtils]: Spent 2.85 s on a formula simplification that was a NOOP. DAG size: 700 [2020-10-28 03:10:15,542 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 03:10:15,542 INFO L93 Difference]: Finished difference Result 1501 states and 1973 transitions. [2020-10-28 03:10:15,544 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-28 03:10:15,544 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 102 [2020-10-28 03:10:15,545 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 03:10:15,552 INFO L225 Difference]: With dead ends: 1501 [2020-10-28 03:10:15,552 INFO L226 Difference]: Without dead ends: 1108 [2020-10-28 03:10:15,554 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 6.3s TimeCoverageRelationStatistics Valid=56, Invalid=184, Unknown=0, NotChecked=0, Total=240 [2020-10-28 03:10:15,556 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1108 states. [2020-10-28 03:10:15,987 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1108 to 764. [2020-10-28 03:10:15,987 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 764 states. [2020-10-28 03:10:15,990 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 764 states to 764 states and 936 transitions. [2020-10-28 03:10:15,990 INFO L78 Accepts]: Start accepts. Automaton has 764 states and 936 transitions. Word has length 102 [2020-10-28 03:10:15,991 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 03:10:15,991 INFO L481 AbstractCegarLoop]: Abstraction has 764 states and 936 transitions. [2020-10-28 03:10:15,991 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-28 03:10:15,991 INFO L276 IsEmpty]: Start isEmpty. Operand 764 states and 936 transitions. [2020-10-28 03:10:15,993 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2020-10-28 03:10:15,993 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 03:10:15,994 INFO L422 BasicCegarLoop]: trace histogram [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] [2020-10-28 03:10:15,994 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-28 03:10:15,994 INFO L429 AbstractCegarLoop]: === Iteration 6 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 03:10:15,994 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 03:10:15,995 INFO L82 PathProgramCache]: Analyzing trace with hash -1159250542, now seen corresponding path program 1 times [2020-10-28 03:10:15,995 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 03:10:15,995 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1129474702] [2020-10-28 03:10:15,995 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 03:10:16,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 03:10:16,134 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 03:10:18,089 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 03:10:20,399 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 03:10:21,140 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 03:10:21,140 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 146 [2020-10-28 03:10:21,140 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-28 03:10:21,140 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5067 [2020-10-28 03:10:21,140 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 03:10:21,140 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-28 03:10:21,140 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 29 [2020-10-28 03:10:21,141 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-28 03:10:21,141 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 03:10:24,197 WARN L193 SmtUtils]: Spent 2.86 s on a formula simplification that was a NOOP. DAG size: 691 [2020-10-28 03:10:24,199 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 03:10:24,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 03:10:24,226 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 03:10:24,570 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 03:10:24,571 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 03:10:24,571 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 03:10:24,571 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 352 [2020-10-28 03:10:24,571 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 03:10:24,571 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 03:10:24,571 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 03:10:24,571 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 03:10:24,571 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 03:10:24,611 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-28 03:10:24,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 03:10:24,614 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 03:10:24,614 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 03:10:24,614 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-28 03:10:24,615 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 03:10:24,615 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-28 03:10:24,615 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 03:10:24,615 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 03:10:24,615 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 03:10:24,615 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 03:10:24,615 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 03:10:24,642 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-28 03:10:24,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 03:10:24,651 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 03:10:24,670 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 03:10:24,671 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-10-28 03:10:24,671 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 03:10:24,671 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-10-28 03:10:24,671 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 03:10:24,671 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 03:10:24,671 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 03:10:24,671 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-10-28 03:10:24,672 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 03:10:24,751 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 03:10:24,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 03:10:24,755 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 03:10:24,757 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 03:10:24,757 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 03:10:24,757 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 03:10:24,757 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-28 03:10:24,757 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 03:10:24,757 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 03:10:24,757 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 03:10:24,758 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 03:10:24,758 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 03:10:24,761 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2020-10-28 03:10:24,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 03:10:24,766 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 03:10:24,767 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 03:10:24,767 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 03:10:24,767 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 03:10:24,767 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-28 03:10:24,768 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 03:10:24,768 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 03:10:24,768 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-28 03:10:24,768 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 03:10:24,768 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 03:10:24,771 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2020-10-28 03:10:24,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 03:10:24,775 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 03:10:24,778 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 03:10:24,778 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-28 03:10:24,778 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 03:10:24,778 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-28 03:10:24,778 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 03:10:24,778 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 03:10:24,779 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-28 03:10:24,779 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 03:10:24,779 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 03:10:24,785 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2020-10-28 03:10:24,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 03:10:24,789 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 03:10:24,790 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 03:10:24,791 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 03:10:24,791 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 03:10:24,791 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-28 03:10:24,791 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 03:10:24,791 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 03:10:24,791 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-28 03:10:24,791 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 03:10:24,791 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 03:10:24,794 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2020-10-28 03:10:24,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 03:10:24,798 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 03:10:24,799 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 03:10:24,799 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 03:10:24,800 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 03:10:24,800 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-28 03:10:24,800 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 03:10:24,800 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 03:10:24,800 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-28 03:10:24,800 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 03:10:24,800 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 03:10:24,831 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2020-10-28 03:10:24,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 03:10:24,840 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 03:10:24,846 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 03:10:24,847 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 24 [2020-10-28 03:10:24,847 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 03:10:24,847 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-28 03:10:24,847 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 03:10:24,847 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 03:10:24,847 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 21 [2020-10-28 03:10:24,847 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 03:10:24,848 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 03:10:24,879 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 03:10:24,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 03:10:24,883 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 03:10:24,887 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 03:10:24,887 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-28 03:10:24,887 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 03:10:24,887 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-28 03:10:24,887 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 03:10:24,888 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 03:10:24,888 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 03:10:24,888 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 03:10:24,888 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 03:10:24,891 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 03:10:24,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 03:10:24,895 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 03:10:24,897 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 03:10:24,897 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-28 03:10:24,897 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 03:10:24,898 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-28 03:10:24,898 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 03:10:24,898 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 03:10:24,898 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 03:10:24,898 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 03:10:24,898 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 03:10:24,902 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2020-10-28 03:10:24,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 03:10:24,909 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 03:10:24,915 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 03:10:24,915 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-10-28 03:10:24,915 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 03:10:24,915 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-28 03:10:24,915 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 03:10:24,915 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 03:10:24,916 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 20 [2020-10-28 03:10:24,916 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 03:10:24,916 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 03:10:24,920 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-28 03:10:24,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 03:10:24,923 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 03:10:24,927 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 03:10:24,927 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-28 03:10:24,927 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 03:10:24,927 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-28 03:10:24,927 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 03:10:24,928 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 03:10:24,928 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 03:10:24,928 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 03:10:24,928 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 03:10:24,931 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-28 03:10:24,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 03:10:24,935 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 03:10:24,936 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 03:10:24,936 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-28 03:10:24,936 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 03:10:24,937 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-28 03:10:24,937 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 03:10:24,937 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 03:10:24,937 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 03:10:24,937 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 03:10:24,937 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 03:10:24,979 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-10-28 03:10:24,980 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1129474702] [2020-10-28 03:10:24,982 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-28 03:10:24,982 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-10-28 03:10:24,982 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1454659989] [2020-10-28 03:10:24,983 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-28 03:10:24,983 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 03:10:24,984 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-28 03:10:24,984 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2020-10-28 03:10:24,985 INFO L87 Difference]: Start difference. First operand 764 states and 936 transitions. Second operand 10 states. [2020-10-28 03:10:28,016 WARN L193 SmtUtils]: Spent 2.99 s on a formula simplification that was a NOOP. DAG size: 700 [2020-10-28 03:10:33,526 WARN L193 SmtUtils]: Spent 2.98 s on a formula simplification that was a NOOP. DAG size: 698 [2020-10-28 03:10:36,684 WARN L193 SmtUtils]: Spent 3.09 s on a formula simplification that was a NOOP. DAG size: 707 [2020-10-28 03:10:39,838 WARN L193 SmtUtils]: Spent 3.09 s on a formula simplification that was a NOOP. DAG size: 703 [2020-10-28 03:10:43,009 WARN L193 SmtUtils]: Spent 3.10 s on a formula simplification that was a NOOP. DAG size: 712 [2020-10-28 03:10:53,323 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 03:10:53,324 INFO L93 Difference]: Finished difference Result 1822 states and 2346 transitions. [2020-10-28 03:10:53,324 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-10-28 03:10:53,324 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 106 [2020-10-28 03:10:53,325 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 03:10:53,332 INFO L225 Difference]: With dead ends: 1822 [2020-10-28 03:10:53,332 INFO L226 Difference]: Without dead ends: 1081 [2020-10-28 03:10:53,334 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 18.7s TimeCoverageRelationStatistics Valid=105, Invalid=315, Unknown=0, NotChecked=0, Total=420 [2020-10-28 03:10:53,336 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1081 states. [2020-10-28 03:10:53,717 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1081 to 759. [2020-10-28 03:10:53,717 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 759 states. [2020-10-28 03:10:53,721 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 759 states to 759 states and 929 transitions. [2020-10-28 03:10:53,721 INFO L78 Accepts]: Start accepts. Automaton has 759 states and 929 transitions. Word has length 106 [2020-10-28 03:10:53,722 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 03:10:53,722 INFO L481 AbstractCegarLoop]: Abstraction has 759 states and 929 transitions. [2020-10-28 03:10:53,722 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-28 03:10:53,722 INFO L276 IsEmpty]: Start isEmpty. Operand 759 states and 929 transitions. [2020-10-28 03:10:53,724 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2020-10-28 03:10:53,724 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 03:10:53,724 INFO L422 BasicCegarLoop]: trace histogram [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] [2020-10-28 03:10:53,725 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-28 03:10:53,725 INFO L429 AbstractCegarLoop]: === Iteration 7 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 03:10:53,725 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 03:10:53,725 INFO L82 PathProgramCache]: Analyzing trace with hash 1548117922, now seen corresponding path program 1 times [2020-10-28 03:10:53,726 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 03:10:53,726 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [690756672] [2020-10-28 03:10:53,726 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 03:10:53,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 03:10:53,873 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 03:10:55,319 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 03:10:56,904 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 03:10:58,821 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 03:10:58,821 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 160 [2020-10-28 03:10:58,822 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-28 03:10:58,822 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5013 [2020-10-28 03:10:58,822 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 03:10:58,822 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-28 03:10:58,822 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-28 03:10:58,822 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 17 [2020-10-28 03:10:58,822 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0