/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-staging-lirc-lirc_imon.ko.cil.out.i -------------------------------------------------------------------------------- This is Ultimate 0.2.0-0f64333 [2020-10-28 03:07:04,781 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-28 03:07:04,784 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-28 03:07:04,818 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-28 03:07:04,819 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-28 03:07:04,820 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-28 03:07:04,822 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-28 03:07:04,824 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-28 03:07:04,826 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-28 03:07:04,838 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-28 03:07:04,839 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-28 03:07:04,842 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-28 03:07:04,843 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-28 03:07:04,845 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-28 03:07:04,850 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-28 03:07:04,853 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-28 03:07:04,855 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-28 03:07:04,856 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-28 03:07:04,860 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-28 03:07:04,863 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-28 03:07:04,869 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-28 03:07:04,871 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-28 03:07:04,872 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-28 03:07:04,876 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-28 03:07:04,881 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-28 03:07:04,882 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-28 03:07:04,882 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-28 03:07:04,889 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-28 03:07:04,890 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-28 03:07:04,891 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-28 03:07:04,892 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-28 03:07:04,893 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-28 03:07:04,895 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-28 03:07:04,895 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-28 03:07:04,897 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-28 03:07:04,897 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-28 03:07:04,898 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-28 03:07:04,898 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-28 03:07:04,898 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-28 03:07:04,899 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-28 03:07:04,900 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-28 03:07:04,904 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 03:07:04,953 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-28 03:07:04,953 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-28 03:07:04,957 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-28 03:07:04,958 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-28 03:07:04,958 INFO L138 SettingsManager]: * Use SBE=true [2020-10-28 03:07:04,958 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-28 03:07:04,958 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-28 03:07:04,958 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-28 03:07:04,959 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-28 03:07:04,959 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-28 03:07:04,960 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-28 03:07:04,960 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-28 03:07:04,960 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-28 03:07:04,961 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-28 03:07:04,961 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-28 03:07:04,961 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-28 03:07:04,961 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-28 03:07:04,961 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-28 03:07:04,962 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-28 03:07:04,962 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-28 03:07:04,962 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-28 03:07:04,962 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-28 03:07:04,962 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-28 03:07:04,963 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-28 03:07:04,963 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-28 03:07:04,963 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-28 03:07:04,963 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-10-28 03:07:04,963 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=DEEPEST;log-additional-information=true;unknown-allowed=true; [2020-10-28 03:07:05,382 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-28 03:07:05,408 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-28 03:07:05,416 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-28 03:07:05,417 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-28 03:07:05,418 INFO L275 PluginConnector]: CDTParser initialized [2020-10-28 03:07:05,419 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-linux-3.0/usb_urb-drivers-staging-lirc-lirc_imon.ko.cil.out.i [2020-10-28 03:07:05,490 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/13e12b3c7/9dd07f4d204b4855ba760b7f3cb1bbb9/FLAG2bf895f56 [2020-10-28 03:07:06,486 INFO L306 CDTParser]: Found 1 translation units. [2020-10-28 03:07:06,487 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/ldv-linux-3.0/usb_urb-drivers-staging-lirc-lirc_imon.ko.cil.out.i [2020-10-28 03:07:06,551 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/13e12b3c7/9dd07f4d204b4855ba760b7f3cb1bbb9/FLAG2bf895f56 [2020-10-28 03:07:07,002 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/13e12b3c7/9dd07f4d204b4855ba760b7f3cb1bbb9 [2020-10-28 03:07:07,005 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-28 03:07:07,012 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-28 03:07:07,014 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-28 03:07:07,014 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-28 03:07:07,018 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-28 03:07:07,018 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 03:07:07" (1/1) ... [2020-10-28 03:07:07,022 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@582354f0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 03:07:07, skipping insertion in model container [2020-10-28 03:07:07,022 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 03:07:07" (1/1) ... [2020-10-28 03:07:07,030 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-28 03:07:07,118 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-28 03:07:08,383 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-28 03:07:08,442 INFO L203 MainTranslator]: Completed pre-run [2020-10-28 03:07:08,713 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-28 03:07:08,945 INFO L208 MainTranslator]: Completed translation [2020-10-28 03:07:08,945 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 03:07:08 WrapperNode [2020-10-28 03:07:08,946 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-28 03:07:08,948 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-28 03:07:08,949 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-28 03:07:08,949 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-28 03:07:08,964 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 03:07:08" (1/1) ... [2020-10-28 03:07:08,964 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 03:07:08" (1/1) ... [2020-10-28 03:07:09,056 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 03:07:08" (1/1) ... [2020-10-28 03:07:09,056 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 03:07:08" (1/1) ... [2020-10-28 03:07:09,163 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 03:07:08" (1/1) ... [2020-10-28 03:07:09,195 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 03:07:08" (1/1) ... [2020-10-28 03:07:09,283 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 03:07:08" (1/1) ... [2020-10-28 03:07:09,311 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-28 03:07:09,312 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-28 03:07:09,313 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-28 03:07:09,313 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-28 03:07:09,314 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 03:07:08" (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 03:07:09,390 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-28 03:07:09,390 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-28 03:07:09,390 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-28 03:07:09,390 INFO L138 BoogieDeclarations]: Found implementation of procedure PTR_ERR [2020-10-28 03:07:09,390 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2020-10-28 03:07:09,391 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_read [2020-10-28 03:07:09,391 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_set [2020-10-28 03:07:09,391 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2020-10-28 03:07:09,391 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2020-10-28 03:07:09,391 INFO L138 BoogieDeclarations]: Found implementation of procedure init_completion [2020-10-28 03:07:09,391 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2020-10-28 03:07:09,391 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2020-10-28 03:07:09,392 INFO L138 BoogieDeclarations]: Found implementation of procedure iminor [2020-10-28 03:07:09,392 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_get_intfdata [2020-10-28 03:07:09,392 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_set_intfdata [2020-10-28 03:07:09,392 INFO L138 BoogieDeclarations]: Found implementation of procedure interface_to_usbdev [2020-10-28 03:07:09,392 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_register [2020-10-28 03:07:09,392 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_fill_int_urb [2020-10-28 03:07:09,393 INFO L138 BoogieDeclarations]: Found implementation of procedure __create_pipe [2020-10-28 03:07:09,393 INFO L138 BoogieDeclarations]: Found implementation of procedure __kfifo_int_must_check_helper [2020-10-28 03:07:09,393 INFO L138 BoogieDeclarations]: Found implementation of procedure lirc_buffer_init [2020-10-28 03:07:09,393 INFO L138 BoogieDeclarations]: Found implementation of procedure lirc_buffer_free [2020-10-28 03:07:09,393 INFO L138 BoogieDeclarations]: Found implementation of procedure lirc_buffer_write [2020-10-28 03:07:09,393 INFO L138 BoogieDeclarations]: Found implementation of procedure free_imon_context [2020-10-28 03:07:09,394 INFO L138 BoogieDeclarations]: Found implementation of procedure deregister_from_lirc [2020-10-28 03:07:09,394 INFO L138 BoogieDeclarations]: Found implementation of procedure display_open [2020-10-28 03:07:09,394 INFO L138 BoogieDeclarations]: Found implementation of procedure display_close [2020-10-28 03:07:09,394 INFO L138 BoogieDeclarations]: Found implementation of procedure send_packet [2020-10-28 03:07:09,394 INFO L138 BoogieDeclarations]: Found implementation of procedure vfd_write [2020-10-28 03:07:09,394 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_tx_callback [2020-10-28 03:07:09,394 INFO L138 BoogieDeclarations]: Found implementation of procedure ir_open [2020-10-28 03:07:09,395 INFO L138 BoogieDeclarations]: Found implementation of procedure ir_close [2020-10-28 03:07:09,395 INFO L138 BoogieDeclarations]: Found implementation of procedure submit_data [2020-10-28 03:07:09,395 INFO L138 BoogieDeclarations]: Found implementation of procedure imon_incoming_packet [2020-10-28 03:07:09,395 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_rx_callback [2020-10-28 03:07:09,395 INFO L138 BoogieDeclarations]: Found implementation of procedure imon_probe [2020-10-28 03:07:09,395 INFO L138 BoogieDeclarations]: Found implementation of procedure imon_disconnect [2020-10-28 03:07:09,396 INFO L138 BoogieDeclarations]: Found implementation of procedure imon_suspend [2020-10-28 03:07:09,396 INFO L138 BoogieDeclarations]: Found implementation of procedure imon_resume [2020-10-28 03:07:09,396 INFO L138 BoogieDeclarations]: Found implementation of procedure imon_init [2020-10-28 03:07:09,396 INFO L138 BoogieDeclarations]: Found implementation of procedure imon_exit [2020-10-28 03:07:09,396 INFO L138 BoogieDeclarations]: Found implementation of procedure init_module [2020-10-28 03:07:09,396 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup_module [2020-10-28 03:07:09,397 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-28 03:07:09,397 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_blast_assert [2020-10-28 03:07:09,397 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume_stop [2020-10-28 03:07:09,397 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_alloc_coherent [2020-10-28 03:07:09,397 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_free_coherent [2020-10-28 03:07:09,397 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_alloc_urb [2020-10-28 03:07:09,397 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_free_urb [2020-10-28 03:07:09,398 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2020-10-28 03:07:09,398 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_waitqueue_head [2020-10-28 03:07:09,398 INFO L138 BoogieDeclarations]: Found implementation of procedure __kfifo_alloc [2020-10-28 03:07:09,398 INFO L138 BoogieDeclarations]: Found implementation of procedure __kfifo_free [2020-10-28 03:07:09,398 INFO L138 BoogieDeclarations]: Found implementation of procedure __kfifo_in [2020-10-28 03:07:09,398 INFO L138 BoogieDeclarations]: Found implementation of procedure __kfifo_in_r [2020-10-28 03:07:09,398 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2020-10-28 03:07:09,399 INFO L138 BoogieDeclarations]: Found implementation of procedure __kmalloc [2020-10-28 03:07:09,399 INFO L138 BoogieDeclarations]: Found implementation of procedure __mutex_init [2020-10-28 03:07:09,399 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2020-10-28 03:07:09,399 INFO L138 BoogieDeclarations]: Found implementation of procedure __wake_up [2020-10-28 03:07:09,399 INFO L138 BoogieDeclarations]: Found implementation of procedure _dev_info [2020-10-28 03:07:09,399 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock_irqsave [2020-10-28 03:07:09,400 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_unlock_irqrestore [2020-10-28 03:07:09,400 INFO L138 BoogieDeclarations]: Found implementation of procedure complete [2020-10-28 03:07:09,400 INFO L138 BoogieDeclarations]: Found implementation of procedure complete_all [2020-10-28 03:07:09,400 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_get_drvdata [2020-10-28 03:07:09,400 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_printk [2020-10-28 03:07:09,400 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_set_drvdata [2020-10-28 03:07:09,401 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_warn [2020-10-28 03:07:09,401 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_return_value [2020-10-28 03:07:09,401 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize [2020-10-28 03:07:09,401 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undefined_pointer [2020-10-28 03:07:09,401 INFO L138 BoogieDeclarations]: Found implementation of procedure lirc_register_driver [2020-10-28 03:07:09,401 INFO L138 BoogieDeclarations]: Found implementation of procedure lirc_unregister_driver [2020-10-28 03:07:09,402 INFO L138 BoogieDeclarations]: Found implementation of procedure memdup_user [2020-10-28 03:07:09,402 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_nested [2020-10-28 03:07:09,402 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2020-10-28 03:07:09,402 INFO L138 BoogieDeclarations]: Found implementation of procedure printk [2020-10-28 03:07:09,402 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_deregister [2020-10-28 03:07:09,402 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_deregister_dev [2020-10-28 03:07:09,403 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_find_interface [2020-10-28 03:07:09,403 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_get_dev [2020-10-28 03:07:09,403 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_kill_urb [2020-10-28 03:07:09,403 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_match_id [2020-10-28 03:07:09,403 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_register_dev [2020-10-28 03:07:09,403 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_register_driver [2020-10-28 03:07:09,404 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_submit_urb [2020-10-28 03:07:09,404 INFO L138 BoogieDeclarations]: Found implementation of procedure wait_for_completion_interruptible [2020-10-28 03:07:09,404 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_fmt [2020-10-28 03:07:09,404 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2020-10-28 03:07:09,404 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2020-10-28 03:07:09,404 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_strcpy [2020-10-28 03:07:09,405 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-28 03:07:09,405 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-28 03:07:09,405 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_perror_fail [2020-10-28 03:07:09,405 INFO L130 BoogieDeclarations]: Found specification of procedure __assert [2020-10-28 03:07:09,405 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-28 03:07:09,405 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-28 03:07:09,405 INFO L130 BoogieDeclarations]: Found specification of procedure printk [2020-10-28 03:07:09,406 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_fmt [2020-10-28 03:07:09,406 INFO L130 BoogieDeclarations]: Found specification of procedure memdup_user [2020-10-28 03:07:09,406 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy [2020-10-28 03:07:09,406 INFO L130 BoogieDeclarations]: Found specification of procedure strcpy [2020-10-28 03:07:09,406 INFO L130 BoogieDeclarations]: Found specification of procedure PTR_ERR [2020-10-28 03:07:09,406 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2020-10-28 03:07:09,406 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_read [2020-10-28 03:07:09,406 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-28 03:07:09,407 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_set [2020-10-28 03:07:09,407 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-28 03:07:09,407 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2020-10-28 03:07:09,407 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock_irqsave [2020-10-28 03:07:09,407 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_unlock_irqrestore [2020-10-28 03:07:09,407 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2020-10-28 03:07:09,407 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2020-10-28 03:07:09,408 INFO L130 BoogieDeclarations]: Found specification of procedure __init_waitqueue_head [2020-10-28 03:07:09,408 INFO L130 BoogieDeclarations]: Found specification of procedure __wake_up [2020-10-28 03:07:09,408 INFO L130 BoogieDeclarations]: Found specification of procedure __mutex_init [2020-10-28 03:07:09,408 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_nested [2020-10-28 03:07:09,408 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2020-10-28 03:07:09,408 INFO L130 BoogieDeclarations]: Found specification of procedure init_completion [2020-10-28 03:07:09,408 INFO L130 BoogieDeclarations]: Found specification of procedure wait_for_completion_interruptible [2020-10-28 03:07:09,409 INFO L130 BoogieDeclarations]: Found specification of procedure complete [2020-10-28 03:07:09,409 INFO L130 BoogieDeclarations]: Found specification of procedure complete_all [2020-10-28 03:07:09,409 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2020-10-28 03:07:09,409 INFO L130 BoogieDeclarations]: Found specification of procedure init_module [2020-10-28 03:07:09,409 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup_module [2020-10-28 03:07:09,409 INFO L130 BoogieDeclarations]: Found specification of procedure __kmalloc [2020-10-28 03:07:09,409 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2020-10-28 03:07:09,410 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2020-10-28 03:07:09,410 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2020-10-28 03:07:09,410 INFO L130 BoogieDeclarations]: Found specification of procedure dev_get_drvdata [2020-10-28 03:07:09,410 INFO L130 BoogieDeclarations]: Found specification of procedure dev_set_drvdata [2020-10-28 03:07:09,410 INFO L130 BoogieDeclarations]: Found specification of procedure dev_printk [2020-10-28 03:07:09,410 INFO L130 BoogieDeclarations]: Found specification of procedure dev_warn [2020-10-28 03:07:09,410 INFO L130 BoogieDeclarations]: Found specification of procedure _dev_info [2020-10-28 03:07:09,411 INFO L130 BoogieDeclarations]: Found specification of procedure iminor [2020-10-28 03:07:09,411 INFO L130 BoogieDeclarations]: Found specification of procedure noop_llseek [2020-10-28 03:07:09,411 INFO L130 BoogieDeclarations]: Found specification of procedure usb_get_intfdata [2020-10-28 03:07:09,411 INFO L130 BoogieDeclarations]: Found specification of procedure usb_set_intfdata [2020-10-28 03:07:09,411 INFO L130 BoogieDeclarations]: Found specification of procedure interface_to_usbdev [2020-10-28 03:07:09,411 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-10-28 03:07:09,412 INFO L130 BoogieDeclarations]: Found specification of procedure usb_get_dev [2020-10-28 03:07:09,412 INFO L130 BoogieDeclarations]: Found specification of procedure usb_match_id [2020-10-28 03:07:09,412 INFO L130 BoogieDeclarations]: Found specification of procedure usb_find_interface [2020-10-28 03:07:09,412 INFO L130 BoogieDeclarations]: Found specification of procedure usb_register_driver [2020-10-28 03:07:09,412 INFO L130 BoogieDeclarations]: Found specification of procedure usb_register [2020-10-28 03:07:09,412 INFO L130 BoogieDeclarations]: Found specification of procedure usb_deregister [2020-10-28 03:07:09,412 INFO L130 BoogieDeclarations]: Found specification of procedure usb_register_dev [2020-10-28 03:07:09,413 INFO L130 BoogieDeclarations]: Found specification of procedure usb_deregister_dev [2020-10-28 03:07:09,413 INFO L130 BoogieDeclarations]: Found specification of procedure usb_fill_int_urb [2020-10-28 03:07:09,413 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-10-28 03:07:09,413 INFO L130 BoogieDeclarations]: Found specification of procedure usb_alloc_urb [2020-10-28 03:07:09,413 INFO L130 BoogieDeclarations]: Found specification of procedure usb_free_urb [2020-10-28 03:07:09,413 INFO L130 BoogieDeclarations]: Found specification of procedure usb_submit_urb [2020-10-28 03:07:09,413 INFO L130 BoogieDeclarations]: Found specification of procedure usb_kill_urb [2020-10-28 03:07:09,414 INFO L130 BoogieDeclarations]: Found specification of procedure usb_alloc_coherent [2020-10-28 03:07:09,414 INFO L130 BoogieDeclarations]: Found specification of procedure usb_free_coherent [2020-10-28 03:07:09,414 INFO L130 BoogieDeclarations]: Found specification of procedure __create_pipe [2020-10-28 03:07:09,414 INFO L130 BoogieDeclarations]: Found specification of procedure __kfifo_int_must_check_helper [2020-10-28 03:07:09,414 INFO L130 BoogieDeclarations]: Found specification of procedure __kfifo_alloc [2020-10-28 03:07:09,414 INFO L130 BoogieDeclarations]: Found specification of procedure __kfifo_free [2020-10-28 03:07:09,414 INFO L130 BoogieDeclarations]: Found specification of procedure __kfifo_in [2020-10-28 03:07:09,414 INFO L130 BoogieDeclarations]: Found specification of procedure __kfifo_in_r [2020-10-28 03:07:09,415 INFO L130 BoogieDeclarations]: Found specification of procedure lirc_buffer_init [2020-10-28 03:07:09,415 INFO L130 BoogieDeclarations]: Found specification of procedure lirc_buffer_free [2020-10-28 03:07:09,415 INFO L130 BoogieDeclarations]: Found specification of procedure lirc_buffer_write [2020-10-28 03:07:09,415 INFO L130 BoogieDeclarations]: Found specification of procedure lirc_register_driver [2020-10-28 03:07:09,415 INFO L130 BoogieDeclarations]: Found specification of procedure lirc_unregister_driver [2020-10-28 03:07:09,415 INFO L130 BoogieDeclarations]: Found specification of procedure imon_probe [2020-10-28 03:07:09,415 INFO L130 BoogieDeclarations]: Found specification of procedure imon_disconnect [2020-10-28 03:07:09,416 INFO L130 BoogieDeclarations]: Found specification of procedure usb_rx_callback [2020-10-28 03:07:09,416 INFO L130 BoogieDeclarations]: Found specification of procedure usb_tx_callback [2020-10-28 03:07:09,416 INFO L130 BoogieDeclarations]: Found specification of procedure imon_resume [2020-10-28 03:07:09,416 INFO L130 BoogieDeclarations]: Found specification of procedure imon_suspend [2020-10-28 03:07:09,416 INFO L130 BoogieDeclarations]: Found specification of procedure display_open [2020-10-28 03:07:09,416 INFO L130 BoogieDeclarations]: Found specification of procedure display_close [2020-10-28 03:07:09,416 INFO L130 BoogieDeclarations]: Found specification of procedure vfd_write [2020-10-28 03:07:09,416 INFO L130 BoogieDeclarations]: Found specification of procedure ir_open [2020-10-28 03:07:09,417 INFO L130 BoogieDeclarations]: Found specification of procedure ir_close [2020-10-28 03:07:09,417 INFO L130 BoogieDeclarations]: Found specification of procedure imon_init [2020-10-28 03:07:09,417 INFO L130 BoogieDeclarations]: Found specification of procedure imon_exit [2020-10-28 03:07:09,417 INFO L130 BoogieDeclarations]: Found specification of procedure free_imon_context [2020-10-28 03:07:09,417 INFO L130 BoogieDeclarations]: Found specification of procedure deregister_from_lirc [2020-10-28 03:07:09,417 INFO L130 BoogieDeclarations]: Found specification of procedure send_packet [2020-10-28 03:07:09,417 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2020-10-28 03:07:09,418 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-28 03:07:09,418 INFO L130 BoogieDeclarations]: Found specification of procedure submit_data [2020-10-28 03:07:09,418 INFO L130 BoogieDeclarations]: Found specification of procedure imon_incoming_packet [2020-10-28 03:07:09,418 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_strcpy [2020-10-28 03:07:09,418 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2020-10-28 03:07:09,418 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_return_value [2020-10-28 03:07:09,418 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize [2020-10-28 03:07:09,418 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-28 03:07:09,419 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-28 03:07:09,419 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_blast_assert [2020-10-28 03:07:09,419 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undefined_pointer [2020-10-28 03:07:09,419 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume_stop [2020-10-28 03:07:09,419 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uint [2020-10-28 03:07:09,419 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_bool [2020-10-28 03:07:09,419 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-10-28 03:07:09,420 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2020-10-28 03:07:09,420 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-10-28 03:07:09,420 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_ulong [2020-10-28 03:07:09,420 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-10-28 03:07:09,420 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-28 03:07:09,420 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-28 03:07:09,420 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2020-10-28 03:07:09,421 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-28 03:07:09,421 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2020-10-28 03:07:09,421 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2020-10-28 03:07:09,421 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2020-10-28 03:07:09,421 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2020-10-28 03:07:11,054 INFO L751 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_assume_stopFINAL: assume true; [2020-10-28 03:07:17,772 WARN L798 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2020-10-28 03:07:17,811 INFO L751 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##10: assume !false; [2020-10-28 03:07:17,811 INFO L751 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##9: assume false; [2020-10-28 03:07:17,949 WARN L798 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2020-10-28 03:07:17,981 INFO L751 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##23: assume !false; [2020-10-28 03:07:17,982 INFO L751 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##22: assume false; [2020-10-28 03:07:18,260 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-28 03:07:18,260 INFO L298 CfgBuilder]: Removed 40 assume(true) statements. [2020-10-28 03:07:18,264 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 03:07:18 BoogieIcfgContainer [2020-10-28 03:07:18,264 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-28 03:07:18,266 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-28 03:07:18,266 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-28 03:07:18,270 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-28 03:07:18,270 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.10 03:07:07" (1/3) ... [2020-10-28 03:07:18,271 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2410f8ed and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.10 03:07:18, skipping insertion in model container [2020-10-28 03:07:18,271 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 03:07:08" (2/3) ... [2020-10-28 03:07:18,272 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2410f8ed and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.10 03:07:18, skipping insertion in model container [2020-10-28 03:07:18,272 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 03:07:18" (3/3) ... [2020-10-28 03:07:18,275 INFO L111 eAbstractionObserver]: Analyzing ICFG usb_urb-drivers-staging-lirc-lirc_imon.ko.cil.out.i [2020-10-28 03:07:18,294 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-28 03:07:18,301 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-28 03:07:18,316 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-28 03:07:18,364 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-28 03:07:18,364 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-28 03:07:18,364 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-28 03:07:18,364 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-28 03:07:18,365 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-28 03:07:18,365 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-28 03:07:18,365 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-28 03:07:18,365 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-28 03:07:18,410 INFO L276 IsEmpty]: Start isEmpty. Operand 696 states. [2020-10-28 03:07:18,418 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2020-10-28 03:07:18,419 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 03:07:18,420 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 03:07:18,420 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 03:07:18,429 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 03:07:18,429 INFO L82 PathProgramCache]: Analyzing trace with hash 1257740424, now seen corresponding path program 1 times [2020-10-28 03:07:18,438 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 03:07:18,439 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [697175934] [2020-10-28 03:07:18,439 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 03:07:19,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 03:07:19,500 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 03:07:24,412 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 03:07:24,413 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 52 [2020-10-28 03:07:24,413 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 03:07:24,413 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5174 [2020-10-28 03:07:24,415 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 03:07:24,415 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 03:07:24,415 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-28 03:07:24,416 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 39 [2020-10-28 03:07:24,416 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-28 03:07:31,886 WARN L193 SmtUtils]: Spent 7.16 s on a formula simplification that was a NOOP. DAG size: 1069 [2020-10-28 03:07:31,890 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 03:07:32,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 03:07:32,128 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 03:07:34,836 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 03:07:34,836 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 03:07:34,837 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 03:07:34,837 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2814 [2020-10-28 03:07:34,837 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 03:07:34,837 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 03:07:34,837 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 03:07:34,838 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-28 03:07:34,838 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 03:07:34,960 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-28 03:07:34,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 03:07:34,966 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 03:07:34,970 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 03:07:34,971 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-28 03:07:34,971 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 03:07:34,971 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-28 03:07:34,971 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 03:07:34,972 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 03:07:34,972 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 03:07:34,972 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-28 03:07:34,972 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 03:07:34,978 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-28 03:07:34,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 03:07:34,989 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 03:07:35,011 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 03:07:35,012 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-10-28 03:07:35,012 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 03:07:35,012 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-10-28 03:07:35,012 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 03:07:35,012 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 03:07:35,013 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 03:07:35,013 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 20 [2020-10-28 03:07:35,013 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 03:07:35,021 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-28 03:07:35,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 03:07:35,026 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 03:07:35,034 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 03:07:35,034 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-28 03:07:35,035 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 03:07:35,035 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-28 03:07:35,035 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 03:07:35,035 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 03:07:35,036 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 03:07:35,036 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 03:07:35,036 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 03:07:35,042 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-28 03:07:35,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 03:07:35,047 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 03:07:35,050 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 03:07:35,050 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 03:07:35,051 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 03:07:35,051 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-28 03:07:35,051 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 03:07:35,051 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 03:07:35,052 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 03:07:35,052 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 03:07:35,052 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 03:07:35,083 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 03:07:35,084 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [697175934] [2020-10-28 03:07:35,086 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-28 03:07:35,086 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-28 03:07:35,087 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1396157818] [2020-10-28 03:07:35,092 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-28 03:07:35,093 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 03:07:35,107 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-28 03:07:35,108 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-28 03:07:35,110 INFO L87 Difference]: Start difference. First operand 696 states. Second operand 4 states. [2020-10-28 03:07:44,762 WARN L193 SmtUtils]: Spent 7.33 s on a formula simplification that was a NOOP. DAG size: 1071 [2020-10-28 03:08:19,281 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 03:08:19,282 INFO L93 Difference]: Finished difference Result 1643 states and 2457 transitions. [2020-10-28 03:08:19,282 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-28 03:08:19,284 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 32 [2020-10-28 03:08:19,284 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 03:08:19,317 INFO L225 Difference]: With dead ends: 1643 [2020-10-28 03:08:19,317 INFO L226 Difference]: Without dead ends: 1216 [2020-10-28 03:08:19,327 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 14.5s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-28 03:08:19,351 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1216 states. [2020-10-28 03:08:20,293 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1216 to 956. [2020-10-28 03:08:20,294 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 956 states. [2020-10-28 03:08:20,305 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 956 states to 956 states and 1247 transitions. [2020-10-28 03:08:20,308 INFO L78 Accepts]: Start accepts. Automaton has 956 states and 1247 transitions. Word has length 32 [2020-10-28 03:08:20,308 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 03:08:20,309 INFO L481 AbstractCegarLoop]: Abstraction has 956 states and 1247 transitions. [2020-10-28 03:08:20,309 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-28 03:08:20,309 INFO L276 IsEmpty]: Start isEmpty. Operand 956 states and 1247 transitions. [2020-10-28 03:08:20,310 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2020-10-28 03:08:20,310 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 03:08:20,310 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 03:08:20,311 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-28 03:08:20,311 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 03:08:20,311 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 03:08:20,311 INFO L82 PathProgramCache]: Analyzing trace with hash -5763396, now seen corresponding path program 1 times [2020-10-28 03:08:20,312 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 03:08:20,312 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1645089131] [2020-10-28 03:08:20,312 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 03:08:20,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 03:08:20,587 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 03:08:25,044 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 03:08:25,045 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 53 [2020-10-28 03:08:25,045 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 03:08:25,045 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4589 [2020-10-28 03:08:25,045 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 03:08:25,045 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 03:08:25,046 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-28 03:08:25,046 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 40 [2020-10-28 03:08:25,046 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 03:08:32,214 WARN L193 SmtUtils]: Spent 6.95 s on a formula simplification that was a NOOP. DAG size: 1069 [2020-10-28 03:08:32,221 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 03:08:32,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 03:08:32,448 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 03:08:34,960 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 03:08:34,961 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 03:08:34,961 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 03:08:34,961 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2650 [2020-10-28 03:08:34,962 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 03:08:34,962 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 03:08:34,962 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 03:08:34,962 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-28 03:08:34,962 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 03:08:35,102 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-28 03:08:35,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 03:08:35,112 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 03:08:35,118 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 03:08:35,118 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-28 03:08:35,119 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 03:08:35,119 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-28 03:08:35,120 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 03:08:35,120 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 03:08:35,120 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 03:08:35,120 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-28 03:08:35,121 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 03:08:35,127 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-28 03:08:35,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 03:08:35,147 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 03:08:35,169 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 03:08:35,169 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-10-28 03:08:35,170 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 03:08:35,171 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 29 [2020-10-28 03:08:35,171 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 03:08:35,172 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 03:08:35,172 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 03:08:35,172 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 20 [2020-10-28 03:08:35,173 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 03:08:35,183 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-28 03:08:35,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 03:08:35,188 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 03:08:35,196 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 03:08:35,197 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-28 03:08:35,197 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 03:08:35,198 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-28 03:08:35,198 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 03:08:35,198 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 03:08:35,199 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 03:08:35,199 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 03:08:35,199 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 03:08:35,210 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-28 03:08:35,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 03:08:35,215 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 03:08:35,218 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 03:08:35,218 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 03:08:35,218 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 03:08:35,219 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-28 03:08:35,219 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 03:08:35,219 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 03:08:35,219 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 03:08:35,220 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 03:08:35,220 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 03:08:35,250 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 03:08:35,252 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1645089131] [2020-10-28 03:08:35,253 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-28 03:08:35,253 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-28 03:08:35,253 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1118478080] [2020-10-28 03:08:35,255 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-28 03:08:35,256 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 03:08:35,256 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-28 03:08:35,257 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-28 03:08:35,257 INFO L87 Difference]: Start difference. First operand 956 states and 1247 transitions. Second operand 4 states. [2020-10-28 03:08:44,593 WARN L193 SmtUtils]: Spent 7.00 s on a formula simplification that was a NOOP. DAG size: 1071 [2020-10-28 03:09:02,492 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 03:09:02,492 INFO L93 Difference]: Finished difference Result 1215 states and 1657 transitions. [2020-10-28 03:09:02,493 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-28 03:09:02,494 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 33 [2020-10-28 03:09:02,494 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 03:09:02,504 INFO L225 Difference]: With dead ends: 1215 [2020-10-28 03:09:02,504 INFO L226 Difference]: Without dead ends: 1199 [2020-10-28 03:09:02,506 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 14.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-28 03:09:02,508 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1199 states. [2020-10-28 03:09:03,140 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1199 to 944. [2020-10-28 03:09:03,140 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 944 states. [2020-10-28 03:09:03,147 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 944 states to 944 states and 1231 transitions. [2020-10-28 03:09:03,148 INFO L78 Accepts]: Start accepts. Automaton has 944 states and 1231 transitions. Word has length 33 [2020-10-28 03:09:03,148 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 03:09:03,148 INFO L481 AbstractCegarLoop]: Abstraction has 944 states and 1231 transitions. [2020-10-28 03:09:03,148 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-28 03:09:03,148 INFO L276 IsEmpty]: Start isEmpty. Operand 944 states and 1231 transitions. [2020-10-28 03:09:03,152 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2020-10-28 03:09:03,152 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 03:09:03,152 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:09:03,153 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-28 03:09:03,153 INFO L429 AbstractCegarLoop]: === Iteration 3 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 03:09:03,153 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 03:09:03,153 INFO L82 PathProgramCache]: Analyzing trace with hash 1211598212, now seen corresponding path program 1 times [2020-10-28 03:09:03,154 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 03:09:03,154 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [946674763] [2020-10-28 03:09:03,154 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 03:09:03,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 03:09:03,539 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 03:09:03,898 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 03:09:04,164 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 03:09:08,513 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 03:09:08,513 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 97 [2020-10-28 03:09:08,513 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-28 03:09:08,514 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5165 [2020-10-28 03:09:08,514 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 03:09:08,515 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 03:09:08,515 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 79 [2020-10-28 03:09:08,515 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-28 03:09:08,515 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 03:09:15,610 WARN L193 SmtUtils]: Spent 6.89 s on a formula simplification that was a NOOP. DAG size: 1069 [2020-10-28 03:09:15,613 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 03:09:15,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 03:09:15,669 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 03:09:16,743 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 03:09:16,743 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 03:09:16,743 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 03:09:16,743 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1088 [2020-10-28 03:09:16,743 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 03:09:16,744 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 03:09:16,744 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 03:09:16,744 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 03:09:16,744 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 03:09:16,830 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-28 03:09:16,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 03:09:16,835 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 03:09:16,837 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 03:09:16,837 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-28 03:09:16,838 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 03:09:16,838 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-28 03:09:16,838 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 03:09:16,838 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 03:09:16,838 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 03:09:16,839 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 03:09:16,839 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 03:09:16,842 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-28 03:09:16,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 03:09:16,847 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 03:09:16,854 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 03:09:16,854 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-10-28 03:09:16,854 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 03:09:16,854 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-28 03:09:16,855 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 03:09:16,855 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 03:09:16,855 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 03:09:16,855 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 03:09:16,855 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 03:09:16,860 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-28 03:09:16,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 03:09:16,866 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 03:09:16,876 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 03:09:16,878 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-28 03:09:16,878 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 03:09:16,878 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-28 03:09:16,878 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 03:09:16,878 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 03:09:16,879 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 03:09:16,879 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 03:09:16,879 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 03:09:16,883 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-28 03:09:16,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 03:09:16,893 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 03:09:16,896 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 03:09:16,896 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 03:09:16,896 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 03:09:16,897 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-28 03:09:16,897 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 03:09:16,897 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 03:09:16,897 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 03:09:16,897 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 03:09:16,898 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 03:09:16,923 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2020-10-28 03:09:16,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 03:09:16,930 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 03:09:16,937 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 03:09:16,937 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 30 [2020-10-28 03:09:16,937 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 03:09:16,938 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-28 03:09:16,938 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 03:09:16,938 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 03:09:16,938 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 03:09:16,938 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 03:09:16,938 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 03:09:16,944 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-28 03:09:16,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 03:09:16,948 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 03:09:16,955 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 03:09:16,955 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-10-28 03:09:16,956 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 03:09:16,956 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-28 03:09:16,956 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 03:09:16,956 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 03:09:16,956 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 03:09:16,956 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 03:09:16,957 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 03:09:16,962 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-28 03:09:16,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 03:09:16,969 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 03:09:16,976 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 03:09:16,976 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-28 03:09:16,977 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 03:09:16,977 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-28 03:09:16,977 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 03:09:16,977 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 03:09:16,977 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 03:09:16,977 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 03:09:16,978 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 03:09:16,983 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-28 03:09:16,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 03:09:16,987 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 03:09:16,989 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 03:09:16,989 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-28 03:09:16,990 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 03:09:16,990 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-28 03:09:16,990 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 03:09:16,990 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 03:09:16,990 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 03:09:16,991 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 03:09:16,991 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 03:09:17,031 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 03:09:17,032 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [946674763] [2020-10-28 03:09:17,033 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-28 03:09:17,033 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-28 03:09:17,033 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1317764541] [2020-10-28 03:09:17,034 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-28 03:09:17,034 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 03:09:17,035 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-28 03:09:17,035 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-28 03:09:17,035 INFO L87 Difference]: Start difference. First operand 944 states and 1231 transitions. Second operand 5 states. [2020-10-28 03:09:26,701 WARN L193 SmtUtils]: Spent 6.87 s on a formula simplification that was a NOOP. DAG size: 1072 [2020-10-28 03:09:43,268 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 03:09:43,269 INFO L93 Difference]: Finished difference Result 2251 states and 3083 transitions. [2020-10-28 03:09:43,270 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-28 03:09:43,270 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 67 [2020-10-28 03:09:43,270 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 03:09:43,279 INFO L225 Difference]: With dead ends: 2251 [2020-10-28 03:09:43,279 INFO L226 Difference]: Without dead ends: 1333 [2020-10-28 03:09:43,283 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 13.8s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-10-28 03:09:43,285 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1333 states. [2020-10-28 03:09:43,876 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1333 to 965. [2020-10-28 03:09:43,876 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 965 states. [2020-10-28 03:09:43,882 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 965 states to 965 states and 1255 transitions. [2020-10-28 03:09:43,883 INFO L78 Accepts]: Start accepts. Automaton has 965 states and 1255 transitions. Word has length 67 [2020-10-28 03:09:43,884 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 03:09:43,884 INFO L481 AbstractCegarLoop]: Abstraction has 965 states and 1255 transitions. [2020-10-28 03:09:43,884 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-28 03:09:43,884 INFO L276 IsEmpty]: Start isEmpty. Operand 965 states and 1255 transitions. [2020-10-28 03:09:43,889 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2020-10-28 03:09:43,890 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 03:09:43,890 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] [2020-10-28 03:09:43,890 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-28 03:09:43,891 INFO L429 AbstractCegarLoop]: === Iteration 4 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 03:09:43,891 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 03:09:43,891 INFO L82 PathProgramCache]: Analyzing trace with hash -1462176402, now seen corresponding path program 1 times [2020-10-28 03:09:43,891 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 03:09:43,892 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [757025283] [2020-10-28 03:09:43,892 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 03:09:44,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 03:09:44,259 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 03:09:44,531 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 03:09:49,285 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 03:09:49,286 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 162 [2020-10-28 03:09:49,286 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-28 03:09:49,286 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5245 [2020-10-28 03:09:49,286 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 03:09:49,286 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 03:09:49,286 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 39 [2020-10-28 03:09:49,287 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-28 03:09:49,287 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 03:09:56,564 WARN L193 SmtUtils]: Spent 7.10 s on a formula simplification that was a NOOP. DAG size: 1069 [2020-10-28 03:09:56,569 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 03:09:56,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 03:09:56,616 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 03:09:57,530 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 03:09:57,530 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 03:09:57,530 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 03:09:57,531 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 927 [2020-10-28 03:09:57,531 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 03:09:57,531 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 03:09:57,531 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 03:09:57,531 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 03:09:57,531 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 03:09:57,611 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-28 03:09:57,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 03:09:57,614 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 03:09:57,616 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 03:09:57,616 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-28 03:09:57,616 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 03:09:57,616 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-28 03:09:57,617 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 03:09:57,617 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 03:09:57,617 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 03:09:57,617 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 03:09:57,617 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 03:09:57,620 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-28 03:09:57,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 03:09:57,624 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 03:09:57,630 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 03:09:57,631 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-10-28 03:09:57,631 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 03:09:57,631 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-28 03:09:57,631 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 03:09:57,631 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 03:09:57,631 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 03:09:57,632 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 03:09:57,632 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 03:09:57,637 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-28 03:09:57,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 03:09:57,641 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 03:09:57,644 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 03:09:57,645 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-28 03:09:57,645 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 03:09:57,645 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-28 03:09:57,645 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 03:09:57,645 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 03:09:57,646 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 03:09:57,646 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 03:09:57,646 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 03:09:57,650 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-28 03:09:57,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 03:09:57,654 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 03:09:57,656 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 03:09:57,656 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 03:09:57,656 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 03:09:57,656 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-28 03:09:57,657 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 03:09:57,657 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 03:09:57,657 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 03:09:57,657 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 03:09:57,657 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 03:09:57,661 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-10-28 03:09:57,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 03:09:57,665 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 03:09:57,667 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 03:09:57,667 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 03:09:57,667 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 03:09:57,667 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-28 03:09:57,668 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 03:09:57,668 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 03:09:57,668 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-28 03:09:57,668 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 03:09:57,668 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 03:09:57,702 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2020-10-28 03:09:57,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 03:09:57,710 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 03:09:57,718 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 03:09:57,719 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-10-28 03:09:57,719 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 03:09:57,719 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-28 03:09:57,719 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 03:09:57,719 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 03:09:57,719 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 20 [2020-10-28 03:09:57,719 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 03:09:57,720 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 03:09:57,725 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-28 03:09:57,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 03:09:57,730 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 03:09:57,734 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 03:09:57,735 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-28 03:09:57,735 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 03:09:57,735 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-28 03:09:57,735 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 03:09:57,735 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 03:09:57,735 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 03:09:57,736 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 03:09:57,736 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 03:09:57,740 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-28 03:09:57,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 03:09:57,744 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 03:09:57,746 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 03:09:57,746 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-28 03:09:57,746 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 03:09:57,746 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-28 03:09:57,747 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 03:09:57,747 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 03:09:57,747 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 03:09:57,747 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 03:09:57,747 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 03:09:57,751 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2020-10-28 03:09:57,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 03:09:57,754 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 03:09:57,756 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 03:09:57,756 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 03:09:57,756 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 03:09:57,756 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-28 03:09:57,757 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 03:09:57,757 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 03:09:57,757 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-28 03:09:57,757 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 03:09:57,757 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 03:09:57,760 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2020-10-28 03:09:57,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 03:09:57,765 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 03:09:57,769 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 03:09:57,769 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-28 03:09:57,769 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 03:09:57,769 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-28 03:09:57,769 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 03:09:57,769 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 03:09:57,770 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-10-28 03:09:57,770 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 03:09:57,770 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 03:09:57,774 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-28 03:09:57,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 03:09:57,777 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 03:09:57,786 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 03:09:57,786 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 03:09:57,786 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 03:09:57,786 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-28 03:09:57,786 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 03:09:57,787 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 03:09:57,787 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 03:09:57,787 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 03:09:57,787 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 03:09:57,791 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2020-10-28 03:09:57,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 03:09:57,795 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 03:09:57,797 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 03:09:57,797 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 03:09:57,797 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 03:09:57,797 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-28 03:09:57,797 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 03:09:57,798 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 03:09:57,798 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-28 03:09:57,798 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 03:09:57,798 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 03:09:57,802 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2020-10-28 03:09:57,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 03:09:57,807 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 03:09:57,808 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 03:09:57,809 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 03:09:57,809 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 03:09:57,809 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-28 03:09:57,809 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 03:09:57,809 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 03:09:57,810 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-28 03:09:57,810 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 03:09:57,810 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 03:09:57,814 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-10-28 03:09:57,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 03:09:57,820 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 03:09:57,835 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 03:09:57,835 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-28 03:09:57,835 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 03:09:57,836 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-28 03:09:57,836 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 03:09:57,836 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 03:09:57,836 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 13 [2020-10-28 03:09:57,837 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 03:09:57,837 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 03:09:57,842 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-28 03:09:57,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 03:09:57,848 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 03:09:57,850 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 03:09:57,851 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 03:09:57,851 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 03:09:57,851 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-28 03:09:57,851 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 03:09:57,852 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 03:09:57,852 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 03:09:57,852 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 03:09:57,852 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 03:09:57,856 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2020-10-28 03:09:57,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 03:09:57,861 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 03:09:57,863 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 03:09:57,864 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 03:09:57,864 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 03:09:57,864 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-28 03:09:57,865 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 03:09:57,865 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 03:09:57,865 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-28 03:09:57,865 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 03:09:57,866 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 03:09:57,969 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-10-28 03:09:57,970 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [757025283] [2020-10-28 03:09:57,970 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-28 03:09:57,971 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-28 03:09:57,971 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1533363011] [2020-10-28 03:09:57,972 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-28 03:09:57,972 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 03:09:57,973 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-28 03:09:57,974 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-28 03:09:57,974 INFO L87 Difference]: Start difference. First operand 965 states and 1255 transitions. Second operand 5 states. [2020-10-28 03:10:18,835 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 03:10:18,835 INFO L93 Difference]: Finished difference Result 2261 states and 3063 transitions. [2020-10-28 03:10:18,836 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-28 03:10:18,836 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 114 [2020-10-28 03:10:18,836 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 03:10:18,844 INFO L225 Difference]: With dead ends: 2261 [2020-10-28 03:10:18,845 INFO L226 Difference]: Without dead ends: 1322 [2020-10-28 03:10:18,849 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 7.1s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-28 03:10:18,851 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1322 states. [2020-10-28 03:10:19,483 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1322 to 991. [2020-10-28 03:10:19,483 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 991 states. [2020-10-28 03:10:19,488 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 991 states to 991 states and 1294 transitions. [2020-10-28 03:10:19,489 INFO L78 Accepts]: Start accepts. Automaton has 991 states and 1294 transitions. Word has length 114 [2020-10-28 03:10:19,489 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 03:10:19,489 INFO L481 AbstractCegarLoop]: Abstraction has 991 states and 1294 transitions. [2020-10-28 03:10:19,489 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-28 03:10:19,490 INFO L276 IsEmpty]: Start isEmpty. Operand 991 states and 1294 transitions. [2020-10-28 03:10:19,492 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2020-10-28 03:10:19,492 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 03:10:19,492 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 03:10:19,493 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-28 03:10:19,493 INFO L429 AbstractCegarLoop]: === Iteration 5 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 03:10:19,493 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 03:10:19,493 INFO L82 PathProgramCache]: Analyzing trace with hash 558942684, now seen corresponding path program 1 times [2020-10-28 03:10:19,494 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 03:10:19,494 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [707320407] [2020-10-28 03:10:19,494 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 03:10:19,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 03:10:19,743 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 03:10:20,083 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 03:10:20,288 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 03:10:25,524 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 03:10:33,102 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 03:10:33,103 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 151 [2020-10-28 03:10:33,103 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-28 03:10:33,103 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13466 [2020-10-28 03:10:33,103 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 03:10:33,103 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-28 03:10:33,104 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 88 [2020-10-28 03:10:33,104 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-28 03:10:33,104 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 03:10:40,389 WARN L193 SmtUtils]: Spent 7.09 s on a formula simplification that was a NOOP. DAG size: 1069 [2020-10-28 03:10:40,392 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 03:10:40,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 03:10:40,436 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 03:10:41,289 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 03:10:41,289 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 03:10:41,289 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 03:10:41,289 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 865 [2020-10-28 03:10:41,290 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 03:10:41,290 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 03:10:41,290 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 03:10:41,290 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 03:10:41,290 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 03:10:41,354 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-28 03:10:41,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 03:10:41,358 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 03:10:41,359 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 03:10:41,360 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-28 03:10:41,360 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 03:10:41,360 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-28 03:10:41,360 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 03:10:41,360 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 03:10:41,360 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 03:10:41,361 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 03:10:41,361 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 03:10:41,364 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-28 03:10:41,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 03:10:41,369 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 03:10:41,375 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 03:10:41,375 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-10-28 03:10:41,375 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 03:10:41,375 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-28 03:10:41,375 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 03:10:41,376 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 03:10:41,376 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 03:10:41,376 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 03:10:41,376 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 03:10:41,381 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-28 03:10:41,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 03:10:41,385 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 03:10:41,389 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 03:10:41,389 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-28 03:10:41,390 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 03:10:41,390 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-28 03:10:41,390 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 03:10:41,390 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 03:10:41,390 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 03:10:41,390 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 03:10:41,391 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 03:10:41,395 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-28 03:10:41,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 03:10:41,398 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 03:10:41,400 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 03:10:41,400 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 03:10:41,400 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 03:10:41,401 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-28 03:10:41,401 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 03:10:41,401 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 03:10:41,401 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 03:10:41,401 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 03:10:41,401 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 03:10:41,445 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2020-10-28 03:10:41,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 03:10:41,450 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 03:10:41,458 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 03:10:41,458 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 30 [2020-10-28 03:10:41,458 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 03:10:41,458 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-28 03:10:41,458 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 03:10:41,459 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 03:10:41,459 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 03:10:41,459 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 03:10:41,459 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 03:10:41,464 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-28 03:10:41,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 03:10:41,469 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 03:10:41,475 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 03:10:41,475 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-10-28 03:10:41,475 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 03:10:41,475 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-28 03:10:41,476 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 03:10:41,476 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 03:10:41,476 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 03:10:41,476 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 03:10:41,476 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 03:10:41,481 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-28 03:10:41,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 03:10:41,486 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 03:10:41,491 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 03:10:41,492 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-28 03:10:41,492 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 03:10:41,492 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-28 03:10:41,492 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 03:10:41,492 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 03:10:41,493 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 03:10:41,493 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 03:10:41,493 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 03:10:41,497 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-28 03:10:41,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 03:10:41,502 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 03:10:41,504 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 03:10:41,504 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-28 03:10:41,504 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 03:10:41,504 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-28 03:10:41,505 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 03:10:41,505 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 03:10:41,505 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 03:10:41,505 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 03:10:41,506 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 03:10:41,510 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2020-10-28 03:10:41,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 03:10:41,519 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 03:10:41,545 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 03:10:41,545 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-28 03:10:41,545 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 03:10:41,545 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 29 [2020-10-28 03:10:41,545 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 03:10:41,546 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-28 03:10:41,546 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 03:10:41,546 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-10-28 03:10:41,546 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 03:10:41,658 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-28 03:10:41,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 03:10:41,667 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 03:10:41,677 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 03:10:41,678 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-28 03:10:41,678 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 03:10:41,678 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-28 03:10:41,678 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 03:10:41,678 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-28 03:10:41,679 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 03:10:41,679 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-28 03:10:41,679 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 03:10:41,729 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2020-10-28 03:10:41,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 03:10:41,735 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 03:10:41,738 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 03:10:41,738 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 03:10:41,738 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 03:10:41,738 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-28 03:10:41,738 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 03:10:41,739 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 03:10:41,739 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-28 03:10:41,739 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 03:10:41,739 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 03:10:41,743 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2020-10-28 03:10:41,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 03:10:41,751 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 03:10:41,755 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 03:10:41,756 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-28 03:10:41,756 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 03:10:41,756 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-28 03:10:41,756 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 03:10:41,756 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 03:10:41,756 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 13 [2020-10-28 03:10:41,757 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 03:10:41,757 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 03:10:41,761 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-28 03:10:41,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 03:10:41,765 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 03:10:41,769 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 03:10:41,769 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-28 03:10:41,769 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 03:10:41,770 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-28 03:10:41,770 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 03:10:41,770 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 03:10:41,770 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 03:10:41,770 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 03:10:41,770 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 03:10:41,775 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-10-28 03:10:41,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 03:10:41,780 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 03:10:41,782 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 03:10:41,782 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 03:10:41,782 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 03:10:41,782 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-28 03:10:41,783 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-28 03:10:41,783 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 03:10:41,783 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-28 03:10:41,783 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 03:10:41,783 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 03:10:41,854 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2020-10-28 03:10:41,854 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [707320407] [2020-10-28 03:10:41,855 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-28 03:10:41,855 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2020-10-28 03:10:41,855 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [650594757] [2020-10-28 03:10:41,857 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-28 03:10:41,857 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 03:10:41,858 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-28 03:10:41,858 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-10-28 03:10:41,858 INFO L87 Difference]: Start difference. First operand 991 states and 1294 transitions. Second operand 9 states.