/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SingleStatement --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=NARROWEST --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-64bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/ldv-linux-3.12-rc1/linux-3.12-rc1.tar.xz-144_2a-drivers--net--wireless--ti--wlcore--wlcore_spi.ko-entry_point.cil.out.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-25 02:49:17,299 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 02:49:17,302 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 02:49:17,330 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 02:49:17,330 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 02:49:17,333 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 02:49:17,334 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 02:49:17,343 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 02:49:17,347 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 02:49:17,348 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 02:49:17,350 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 02:49:17,351 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 02:49:17,351 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 02:49:17,352 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 02:49:17,356 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 02:49:17,357 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 02:49:17,360 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 02:49:17,362 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 02:49:17,363 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 02:49:17,368 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 02:49:17,372 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 02:49:17,373 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 02:49:17,375 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 02:49:17,376 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 02:49:17,387 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 02:49:17,387 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 02:49:17,387 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 02:49:17,388 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 02:49:17,389 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 02:49:17,392 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 02:49:17,392 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 02:49:17,393 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 02:49:17,393 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 02:49:17,395 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 02:49:17,396 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 02:49:17,397 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 02:49:17,398 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 02:49:17,398 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 02:49:17,398 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 02:49:17,399 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 02:49:17,400 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 02:49:17,401 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-64bit-Automizer_Default.epf [2020-09-25 02:49:17,443 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 02:49:17,443 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 02:49:17,445 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 02:49:17,445 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 02:49:17,446 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 02:49:17,446 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 02:49:17,446 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 02:49:17,447 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 02:49:17,447 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 02:49:17,447 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 02:49:17,448 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 02:49:17,448 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 02:49:17,448 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 02:49:17,449 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 02:49:17,449 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 02:49:17,449 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 02:49:17,450 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 02:49:17,450 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 02:49:17,450 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 02:49:17,450 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 02:49:17,451 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 02:49:17,451 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 02:49:17,451 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 02:49:17,451 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 02:49:17,451 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 02:49:17,451 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 02:49:17,452 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-09-25 02:49:17,452 INFO L138 SettingsManager]: * To the following directory=dump/ Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SingleStatement Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=NARROWEST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=NARROWEST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=NARROWEST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=NARROWEST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=NARROWEST;log-additional-information=true; [2020-09-25 02:49:17,943 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 02:49:17,962 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 02:49:17,966 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 02:49:17,968 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 02:49:17,968 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 02:49:17,970 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-linux-3.12-rc1/linux-3.12-rc1.tar.xz-144_2a-drivers--net--wireless--ti--wlcore--wlcore_spi.ko-entry_point.cil.out.i [2020-09-25 02:49:18,056 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/d0ac13293/0ed88f8c3ba948268d92357c063990a0/FLAG0264a9a1e [2020-09-25 02:49:18,898 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 02:49:18,899 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/ldv-linux-3.12-rc1/linux-3.12-rc1.tar.xz-144_2a-drivers--net--wireless--ti--wlcore--wlcore_spi.ko-entry_point.cil.out.i [2020-09-25 02:49:18,943 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/d0ac13293/0ed88f8c3ba948268d92357c063990a0/FLAG0264a9a1e [2020-09-25 02:49:19,419 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/d0ac13293/0ed88f8c3ba948268d92357c063990a0 [2020-09-25 02:49:19,433 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 02:49:19,439 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 02:49:19,440 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 02:49:19,440 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 02:49:19,445 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 02:49:19,446 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 02:49:19" (1/1) ... [2020-09-25 02:49:19,450 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@35246ee9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:49:19, skipping insertion in model container [2020-09-25 02:49:19,450 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 02:49:19" (1/1) ... [2020-09-25 02:49:19,459 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 02:49:19,601 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 02:49:20,966 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 02:49:20,988 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 02:49:21,360 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 02:49:21,428 INFO L208 MainTranslator]: Completed translation [2020-09-25 02:49:21,429 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:49:21 WrapperNode [2020-09-25 02:49:21,429 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 02:49:21,430 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 02:49:21,430 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 02:49:21,430 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 02:49:21,449 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:49:21" (1/1) ... [2020-09-25 02:49:21,449 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:49:21" (1/1) ... [2020-09-25 02:49:21,484 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:49:21" (1/1) ... [2020-09-25 02:49:21,484 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:49:21" (1/1) ... [2020-09-25 02:49:21,549 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:49:21" (1/1) ... [2020-09-25 02:49:21,561 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:49:21" (1/1) ... [2020-09-25 02:49:21,573 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:49:21" (1/1) ... [2020-09-25 02:49:21,598 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 02:49:21,601 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 02:49:21,601 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 02:49:21,601 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 02:49:21,602 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:49:21" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 02:49:21,695 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 02:49:21,695 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 02:49:21,695 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2020-09-25 02:49:21,696 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2020-09-25 02:49:21,696 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add_tail [2020-09-25 02:49:21,696 INFO L138 BoogieDeclarations]: Found implementation of procedure __kmalloc [2020-09-25 02:49:21,696 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2020-09-25 02:49:21,697 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2020-09-25 02:49:21,697 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-09-25 02:49:21,697 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2020-09-25 02:49:21,698 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2020-09-25 02:49:21,698 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2020-09-25 02:49:21,698 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_ulong [2020-09-25 02:49:21,698 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2020-09-25 02:49:21,698 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2020-09-25 02:49:21,699 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2020-09-25 02:49:21,699 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_trap [2020-09-25 02:49:21,699 INFO L138 BoogieDeclarations]: Found implementation of procedure to_spi_device [2020-09-25 02:49:21,699 INFO L138 BoogieDeclarations]: Found implementation of procedure spi_set_drvdata [2020-09-25 02:49:21,699 INFO L138 BoogieDeclarations]: Found implementation of procedure spi_get_drvdata [2020-09-25 02:49:21,700 INFO L138 BoogieDeclarations]: Found implementation of procedure spi_unregister_driver [2020-09-25 02:49:21,700 INFO L138 BoogieDeclarations]: Found implementation of procedure spi_message_init [2020-09-25 02:49:21,700 INFO L138 BoogieDeclarations]: Found implementation of procedure spi_message_add_tail [2020-09-25 02:49:21,700 INFO L138 BoogieDeclarations]: Found implementation of procedure wl12xx_spi_reset [2020-09-25 02:49:21,700 INFO L138 BoogieDeclarations]: Found implementation of procedure wl12xx_spi_init [2020-09-25 02:49:21,701 INFO L138 BoogieDeclarations]: Found implementation of procedure wl12xx_spi_read_busy [2020-09-25 02:49:21,701 INFO L138 BoogieDeclarations]: Found implementation of procedure wl12xx_spi_raw_read [2020-09-25 02:49:21,701 INFO L138 BoogieDeclarations]: Found implementation of procedure wl12xx_spi_raw_write [2020-09-25 02:49:21,701 INFO L138 BoogieDeclarations]: Found implementation of procedure wl1271_probe [2020-09-25 02:49:21,701 INFO L138 BoogieDeclarations]: Found implementation of procedure wl1271_remove [2020-09-25 02:49:21,701 INFO L138 BoogieDeclarations]: Found implementation of procedure wl1271_spi_driver_init [2020-09-25 02:49:21,702 INFO L138 BoogieDeclarations]: Found implementation of procedure wl1271_spi_driver_exit [2020-09-25 02:49:21,702 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize_wl1271_if_operations_2 [2020-09-25 02:49:21,702 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize_spi_driver_1 [2020-09-25 02:49:21,702 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 02:49:21,702 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop___0 [2020-09-25 02:49:21,702 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_get_intfdata [2020-09-25 02:49:21,702 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_set_intfdata [2020-09-25 02:49:21,703 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_put_intf [2020-09-25 02:49:21,703 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_urb [2020-09-25 02:49:21,703 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_fill_int_urb [2020-09-25 02:49:21,703 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_fill_bulk_urb [2020-09-25 02:49:21,703 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_submit_urb [2020-09-25 02:49:21,703 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_get_dev [2020-09-25 02:49:21,704 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_put_dev [2020-09-25 02:49:21,704 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_get_interface [2020-09-25 02:49:21,704 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_put_interface [2020-09-25 02:49:21,704 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_serial_register [2020-09-25 02:49:21,704 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_serial_deregister [2020-09-25 02:49:21,704 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2020-09-25 02:49:21,705 INFO L138 BoogieDeclarations]: Found implementation of procedure __list_add [2020-09-25 02:49:21,705 INFO L138 BoogieDeclarations]: Found implementation of procedure crc7 [2020-09-25 02:49:21,705 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_err [2020-09-25 02:49:21,705 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_get_drvdata [2020-09-25 02:49:21,705 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_set_drvdata [2020-09-25 02:49:21,705 INFO L138 BoogieDeclarations]: Found implementation of procedure driver_unregister [2020-09-25 02:49:21,706 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize [2020-09-25 02:49:21,706 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_release_2 [2020-09-25 02:49:21,706 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_setup_2 [2020-09-25 02:49:21,706 INFO L138 BoogieDeclarations]: Found implementation of procedure platform_device_add [2020-09-25 02:49:21,706 INFO L138 BoogieDeclarations]: Found implementation of procedure platform_device_add_data [2020-09-25 02:49:21,706 INFO L138 BoogieDeclarations]: Found implementation of procedure platform_device_add_resources [2020-09-25 02:49:21,707 INFO L138 BoogieDeclarations]: Found implementation of procedure platform_device_alloc [2020-09-25 02:49:21,707 INFO L138 BoogieDeclarations]: Found implementation of procedure platform_device_put [2020-09-25 02:49:21,707 INFO L138 BoogieDeclarations]: Found implementation of procedure platform_device_unregister [2020-09-25 02:49:21,707 INFO L138 BoogieDeclarations]: Found implementation of procedure spi_register_driver [2020-09-25 02:49:21,707 INFO L138 BoogieDeclarations]: Found implementation of procedure spi_setup [2020-09-25 02:49:21,707 INFO L138 BoogieDeclarations]: Found implementation of procedure spi_sync [2020-09-25 02:49:21,708 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2020-09-25 02:49:21,708 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2020-09-25 02:49:21,708 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2020-09-25 02:49:21,708 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2020-09-25 02:49:21,708 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 02:49:21,709 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2020-09-25 02:49:21,709 INFO L130 BoogieDeclarations]: Found specification of procedure memset [2020-09-25 02:49:21,709 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2020-09-25 02:49:21,709 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2020-09-25 02:49:21,709 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-25 02:49:21,710 INFO L130 BoogieDeclarations]: Found specification of procedure __list_add [2020-09-25 02:49:21,710 INFO L130 BoogieDeclarations]: Found specification of procedure list_add_tail [2020-09-25 02:49:21,710 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-25 02:49:21,710 INFO L130 BoogieDeclarations]: Found specification of procedure driver_unregister [2020-09-25 02:49:21,710 INFO L130 BoogieDeclarations]: Found specification of procedure dev_get_drvdata [2020-09-25 02:49:21,711 INFO L130 BoogieDeclarations]: Found specification of procedure dev_set_drvdata [2020-09-25 02:49:21,711 INFO L130 BoogieDeclarations]: Found specification of procedure dev_err [2020-09-25 02:49:21,711 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2020-09-25 02:49:21,711 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2020-09-25 02:49:21,711 INFO L130 BoogieDeclarations]: Found specification of procedure __kmalloc [2020-09-25 02:49:21,711 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2020-09-25 02:49:21,712 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2020-09-25 02:49:21,712 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2020-09-25 02:49:21,712 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-25 02:49:21,712 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2020-09-25 02:49:21,712 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-25 02:49:21,712 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_size_t [2020-09-25 02:49:21,713 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_ulong [2020-09-25 02:49:21,713 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-09-25 02:49:21,713 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-09-25 02:49:21,713 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-25 02:49:21,713 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2020-09-25 02:49:21,713 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2020-09-25 02:49:21,713 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_ulong [2020-09-25 02:49:21,714 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2020-09-25 02:49:21,714 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2020-09-25 02:49:21,714 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_trap [2020-09-25 02:49:21,714 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize_wl1271_if_operations_2 [2020-09-25 02:49:21,714 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize_spi_driver_1 [2020-09-25 02:49:21,714 INFO L130 BoogieDeclarations]: Found specification of procedure crc7 [2020-09-25 02:49:21,715 INFO L130 BoogieDeclarations]: Found specification of procedure to_spi_device [2020-09-25 02:49:21,715 INFO L130 BoogieDeclarations]: Found specification of procedure spi_set_drvdata [2020-09-25 02:49:21,715 INFO L130 BoogieDeclarations]: Found specification of procedure spi_get_drvdata [2020-09-25 02:49:21,715 INFO L130 BoogieDeclarations]: Found specification of procedure spi_register_driver [2020-09-25 02:49:21,715 INFO L130 BoogieDeclarations]: Found specification of procedure spi_unregister_driver [2020-09-25 02:49:21,715 INFO L130 BoogieDeclarations]: Found specification of procedure spi_message_init [2020-09-25 02:49:21,716 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2020-09-25 02:49:21,716 INFO L130 BoogieDeclarations]: Found specification of procedure spi_message_add_tail [2020-09-25 02:49:21,716 INFO L130 BoogieDeclarations]: Found specification of procedure spi_setup [2020-09-25 02:49:21,716 INFO L130 BoogieDeclarations]: Found specification of procedure spi_sync [2020-09-25 02:49:21,716 INFO L130 BoogieDeclarations]: Found specification of procedure platform_device_unregister [2020-09-25 02:49:21,716 INFO L130 BoogieDeclarations]: Found specification of procedure platform_device_alloc [2020-09-25 02:49:21,717 INFO L130 BoogieDeclarations]: Found specification of procedure platform_device_add_resources [2020-09-25 02:49:21,717 INFO L130 BoogieDeclarations]: Found specification of procedure platform_device_add_data [2020-09-25 02:49:21,717 INFO L130 BoogieDeclarations]: Found specification of procedure platform_device_add [2020-09-25 02:49:21,717 INFO L130 BoogieDeclarations]: Found specification of procedure platform_device_put [2020-09-25 02:49:21,717 INFO L130 BoogieDeclarations]: Found specification of procedure wl12xx_spi_reset [2020-09-25 02:49:21,717 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-25 02:49:21,718 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-25 02:49:21,718 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-25 02:49:21,718 INFO L130 BoogieDeclarations]: Found specification of procedure wl12xx_spi_init [2020-09-25 02:49:21,718 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-25 02:49:21,718 INFO L130 BoogieDeclarations]: Found specification of procedure wl12xx_spi_read_busy [2020-09-25 02:49:21,719 INFO L130 BoogieDeclarations]: Found specification of procedure wl12xx_spi_raw_read [2020-09-25 02:49:21,719 INFO L130 BoogieDeclarations]: Found specification of procedure wl12xx_spi_raw_write [2020-09-25 02:49:21,719 INFO L130 BoogieDeclarations]: Found specification of procedure wl1271_probe [2020-09-25 02:49:21,719 INFO L130 BoogieDeclarations]: Found specification of procedure wl1271_remove [2020-09-25 02:49:21,719 INFO L130 BoogieDeclarations]: Found specification of procedure wl1271_spi_driver_init [2020-09-25 02:49:21,720 INFO L130 BoogieDeclarations]: Found specification of procedure wl1271_spi_driver_exit [2020-09-25 02:49:21,720 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize [2020-09-25 02:49:21,720 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_release_2 [2020-09-25 02:49:21,720 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2020-09-25 02:49:21,720 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_setup_2 [2020-09-25 02:49:21,720 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 02:49:21,721 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop___0 [2020-09-25 02:49:21,721 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_get_intfdata [2020-09-25 02:49:21,721 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_set_intfdata [2020-09-25 02:49:21,721 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_put_intf [2020-09-25 02:49:21,721 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_urb [2020-09-25 02:49:21,722 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_fill_int_urb [2020-09-25 02:49:21,722 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_fill_bulk_urb [2020-09-25 02:49:21,722 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_submit_urb [2020-09-25 02:49:21,787 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2020-09-25 02:49:21,787 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_get_dev [2020-09-25 02:49:21,787 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_put_dev [2020-09-25 02:49:21,788 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_get_interface [2020-09-25 02:49:21,788 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_put_interface [2020-09-25 02:49:21,788 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_serial_register [2020-09-25 02:49:21,788 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_serial_deregister [2020-09-25 02:49:21,788 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uchar [2020-09-25 02:49:21,788 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-25 02:49:21,788 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 02:49:21,789 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-25 02:49:21,789 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2020-09-25 02:49:21,789 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 02:49:23,031 INFO L732 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2020-09-25 02:49:23,703 INFO L732 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stop___0FINAL: assume true; [2020-09-25 02:49:24,052 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 02:49:24,052 INFO L295 CfgBuilder]: Removed 0 assume(true) statements. [2020-09-25 02:49:24,072 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 02:49:24 BoogieIcfgContainer [2020-09-25 02:49:24,074 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 02:49:24,075 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 02:49:24,075 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 02:49:24,081 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 02:49:24,082 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 02:49:19" (1/3) ... [2020-09-25 02:49:24,083 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@a2413b3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 02:49:24, skipping insertion in model container [2020-09-25 02:49:24,083 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:49:21" (2/3) ... [2020-09-25 02:49:24,083 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@a2413b3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 02:49:24, skipping insertion in model container [2020-09-25 02:49:24,084 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 02:49:24" (3/3) ... [2020-09-25 02:49:24,086 INFO L109 eAbstractionObserver]: Analyzing ICFG linux-3.12-rc1.tar.xz-144_2a-drivers--net--wireless--ti--wlcore--wlcore_spi.ko-entry_point.cil.out.i [2020-09-25 02:49:24,097 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 02:49:24,109 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 02:49:24,131 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 02:49:24,164 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 02:49:24,165 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 02:49:24,165 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 02:49:24,165 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 02:49:24,165 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 02:49:24,165 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 02:49:24,165 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 02:49:24,165 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 02:49:24,207 INFO L276 IsEmpty]: Start isEmpty. Operand 1099 states. [2020-09-25 02:49:24,225 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 191 [2020-09-25 02:49:24,225 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 02:49:24,226 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 02:49:24,227 INFO L427 AbstractCegarLoop]: === Iteration 1 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 02:49:24,234 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 02:49:24,234 INFO L82 PathProgramCache]: Analyzing trace with hash -126969232, now seen corresponding path program 1 times [2020-09-25 02:49:24,243 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 02:49:24,243 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [757399254] [2020-09-25 02:49:24,244 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 02:49:24,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:49:24,958 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:49:25,286 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:49:25,968 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:49:27,928 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:49:29,815 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:49:29,815 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 215 [2020-09-25 02:49:29,815 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 02:49:29,816 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5024 [2020-09-25 02:49:29,819 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:49:29,819 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-25 02:49:29,819 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 161 [2020-09-25 02:49:29,819 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 02:49:29,820 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-09-25 02:49:30,287 WARN L193 SmtUtils]: Spent 314.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 02:49:30,290 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 02:49:30,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:49:30,341 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:49:30,425 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:49:30,426 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 84 [2020-09-25 02:49:30,426 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:49:30,426 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 109 [2020-09-25 02:49:30,426 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:49:30,427 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 02:49:30,427 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:49:30,427 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 02:49:30,427 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:49:30,545 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2020-09-25 02:49:30,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:49:30,561 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:49:30,608 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:49:30,608 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-25 02:49:30,608 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:49:30,609 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 59 [2020-09-25 02:49:30,609 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:49:30,609 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 02:49:30,609 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:49:30,609 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 02:49:30,610 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:49:30,641 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2020-09-25 02:49:30,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:49:30,655 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:49:30,703 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:49:30,703 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-25 02:49:30,703 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:49:30,704 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 59 [2020-09-25 02:49:30,704 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:49:30,704 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 02:49:30,704 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:49:30,705 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 02:49:30,705 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 02:49:30,738 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2020-09-25 02:49:30,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:49:30,753 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:49:30,781 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:49:30,782 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 02:49:30,782 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:49:30,782 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 41 [2020-09-25 02:49:30,782 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:49:30,786 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 02:49:30,786 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:49:30,787 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 02:49:30,787 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-09-25 02:49:30,816 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2020-09-25 02:49:30,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:49:30,835 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:49:30,904 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:49:30,904 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 02:49:30,905 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:49:30,905 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 82 [2020-09-25 02:49:30,905 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:49:30,905 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-25 02:49:30,905 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-25 02:49:30,906 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 02:49:30,913 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 8 [2020-09-25 02:49:30,964 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2020-09-25 02:49:30,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:49:30,980 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:49:31,008 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:49:31,113 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:49:31,113 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 02:49:31,114 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 02:49:31,114 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 145 [2020-09-25 02:49:31,114 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:49:31,114 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 02:49:31,115 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-09-25 02:49:31,115 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 02:49:31,115 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:49:31,141 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 177 [2020-09-25 02:49:31,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:49:31,157 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:49:31,215 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:49:31,216 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-25 02:49:31,216 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:49:31,216 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 71 [2020-09-25 02:49:31,216 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:49:31,216 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 02:49:31,217 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-09-25 02:49:31,217 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 02:49:31,217 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:49:31,230 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 02:49:31,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:49:31,246 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:49:31,267 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:49:31,267 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 02:49:31,267 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:49:31,268 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 34 [2020-09-25 02:49:31,268 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:49:31,268 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 02:49:31,268 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:49:31,269 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 02:49:31,269 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:49:31,363 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2020-09-25 02:49:31,364 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [757399254] [2020-09-25 02:49:31,366 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 02:49:31,366 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-09-25 02:49:31,369 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [549354470] [2020-09-25 02:49:31,378 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-25 02:49:31,378 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 02:49:31,395 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-25 02:49:31,397 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-09-25 02:49:31,399 INFO L87 Difference]: Start difference. First operand 1099 states. Second operand 7 states. [2020-09-25 02:49:31,750 WARN L193 SmtUtils]: Spent 311.00 ms on a formula simplification that was a NOOP. DAG size: 196 [2020-09-25 02:49:32,886 WARN L193 SmtUtils]: Spent 243.00 ms on a formula simplification that was a NOOP. DAG size: 199 [2020-09-25 02:49:33,160 WARN L193 SmtUtils]: Spent 254.00 ms on a formula simplification that was a NOOP. DAG size: 201 [2020-09-25 02:49:33,414 WARN L193 SmtUtils]: Spent 233.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-25 02:49:33,659 WARN L193 SmtUtils]: Spent 223.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 02:49:39,189 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 02:49:39,190 INFO L93 Difference]: Finished difference Result 2166 states and 2514 transitions. [2020-09-25 02:49:39,191 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-09-25 02:49:39,192 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 190 [2020-09-25 02:49:39,194 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 02:49:39,227 INFO L225 Difference]: With dead ends: 2166 [2020-09-25 02:49:39,227 INFO L226 Difference]: Without dead ends: 1174 [2020-09-25 02:49:39,237 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=53, Invalid=103, Unknown=0, NotChecked=0, Total=156 [2020-09-25 02:49:39,258 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1174 states. [2020-09-25 02:49:39,428 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1174 to 1062. [2020-09-25 02:49:39,430 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1062 states. [2020-09-25 02:49:39,438 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1062 states to 1062 states and 1184 transitions. [2020-09-25 02:49:39,441 INFO L78 Accepts]: Start accepts. Automaton has 1062 states and 1184 transitions. Word has length 190 [2020-09-25 02:49:39,442 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 02:49:39,442 INFO L479 AbstractCegarLoop]: Abstraction has 1062 states and 1184 transitions. [2020-09-25 02:49:39,442 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-25 02:49:39,442 INFO L276 IsEmpty]: Start isEmpty. Operand 1062 states and 1184 transitions. [2020-09-25 02:49:39,449 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 199 [2020-09-25 02:49:39,449 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 02:49:39,450 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 02:49:39,450 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 02:49:39,450 INFO L427 AbstractCegarLoop]: === Iteration 2 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 02:49:39,451 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 02:49:39,451 INFO L82 PathProgramCache]: Analyzing trace with hash -1971199252, now seen corresponding path program 1 times [2020-09-25 02:49:39,451 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 02:49:39,452 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1478503836] [2020-09-25 02:49:39,452 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 02:49:39,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:49:39,708 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:49:40,084 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:49:40,739 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:49:40,739 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 223 [2020-09-25 02:49:40,740 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 02:49:40,740 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1163 [2020-09-25 02:49:40,740 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:49:40,740 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 02:49:40,740 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 186 [2020-09-25 02:49:40,741 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-09-25 02:49:40,741 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:49:41,153 WARN L193 SmtUtils]: Spent 213.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 02:49:41,154 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 02:49:41,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:49:41,187 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:49:41,261 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:49:41,262 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 84 [2020-09-25 02:49:41,262 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:49:41,262 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 97 [2020-09-25 02:49:41,262 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:49:41,262 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 02:49:41,263 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:49:41,263 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 02:49:41,263 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:49:41,345 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2020-09-25 02:49:41,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:49:41,358 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:49:41,373 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:49:41,373 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-25 02:49:41,373 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:49:41,374 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-09-25 02:49:41,374 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:49:41,374 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 02:49:41,374 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:49:41,375 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 02:49:41,375 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:49:41,400 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2020-09-25 02:49:41,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:49:41,413 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:49:41,427 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:49:41,427 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-25 02:49:41,427 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:49:41,428 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-09-25 02:49:41,428 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:49:41,428 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 02:49:41,428 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:49:41,428 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 02:49:41,429 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:49:41,455 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2020-09-25 02:49:41,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:49:41,468 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:49:41,481 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:49:41,481 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 02:49:41,481 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:49:41,482 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-09-25 02:49:41,482 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:49:41,483 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 02:49:41,483 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:49:41,483 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 02:49:41,484 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 02:49:41,513 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2020-09-25 02:49:41,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:49:41,527 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:49:41,571 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:49:41,571 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-09-25 02:49:41,572 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:49:41,572 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 55 [2020-09-25 02:49:41,572 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:49:41,572 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 02:49:41,572 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:49:41,573 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 02:49:41,573 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:49:41,595 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2020-09-25 02:49:41,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:49:41,608 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:49:41,648 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:49:41,649 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-09-25 02:49:41,649 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:49:41,649 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 51 [2020-09-25 02:49:41,649 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:49:41,650 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 02:49:41,650 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:49:41,650 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 02:49:41,650 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:49:41,674 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 185 [2020-09-25 02:49:41,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:49:41,687 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:49:41,719 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:49:41,719 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-25 02:49:41,720 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:49:41,720 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 43 [2020-09-25 02:49:41,720 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:49:41,720 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 02:49:41,720 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-09-25 02:49:41,721 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 02:49:41,721 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:49:41,761 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 02:49:41,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:49:41,772 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:49:41,803 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:49:41,803 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 02:49:41,803 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:49:41,804 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 40 [2020-09-25 02:49:41,804 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:49:41,804 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 02:49:41,804 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:49:41,805 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 02:49:41,805 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:49:41,866 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2020-09-25 02:49:41,867 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1478503836] [2020-09-25 02:49:41,867 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 02:49:41,868 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-09-25 02:49:41,868 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1927068487] [2020-09-25 02:49:41,870 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-25 02:49:41,871 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 02:49:41,871 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-25 02:49:41,871 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-09-25 02:49:41,871 INFO L87 Difference]: Start difference. First operand 1062 states and 1184 transitions. Second operand 6 states. [2020-09-25 02:49:42,103 WARN L193 SmtUtils]: Spent 220.00 ms on a formula simplification that was a NOOP. DAG size: 196 [2020-09-25 02:49:42,716 WARN L193 SmtUtils]: Spent 234.00 ms on a formula simplification that was a NOOP. DAG size: 198 [2020-09-25 02:49:43,027 WARN L193 SmtUtils]: Spent 221.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 02:49:43,441 WARN L193 SmtUtils]: Spent 211.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-25 02:49:47,520 WARN L193 SmtUtils]: Spent 227.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 02:49:51,428 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 02:49:51,429 INFO L93 Difference]: Finished difference Result 2144 states and 2427 transitions. [2020-09-25 02:49:51,430 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-09-25 02:49:51,430 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 198 [2020-09-25 02:49:51,432 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 02:49:51,444 INFO L225 Difference]: With dead ends: 2144 [2020-09-25 02:49:51,445 INFO L226 Difference]: Without dead ends: 2118 [2020-09-25 02:49:51,447 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=51, Invalid=105, Unknown=0, NotChecked=0, Total=156 [2020-09-25 02:49:51,450 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2118 states. [2020-09-25 02:49:51,569 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2118 to 1926. [2020-09-25 02:49:51,569 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1926 states. [2020-09-25 02:49:51,579 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1926 states to 1926 states and 2158 transitions. [2020-09-25 02:49:51,580 INFO L78 Accepts]: Start accepts. Automaton has 1926 states and 2158 transitions. Word has length 198 [2020-09-25 02:49:51,580 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 02:49:51,581 INFO L479 AbstractCegarLoop]: Abstraction has 1926 states and 2158 transitions. [2020-09-25 02:49:51,581 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-25 02:49:51,581 INFO L276 IsEmpty]: Start isEmpty. Operand 1926 states and 2158 transitions. [2020-09-25 02:49:51,585 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 213 [2020-09-25 02:49:51,585 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 02:49:51,585 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 02:49:51,585 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 02:49:51,586 INFO L427 AbstractCegarLoop]: === Iteration 3 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 02:49:51,586 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 02:49:51,586 INFO L82 PathProgramCache]: Analyzing trace with hash 216367441, now seen corresponding path program 1 times [2020-09-25 02:49:51,586 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 02:49:51,587 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [649194091] [2020-09-25 02:49:51,587 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 02:49:51,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:49:51,773 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:49:52,275 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:49:52,276 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 237 [2020-09-25 02:49:52,276 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:49:52,276 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 595 [2020-09-25 02:49:52,276 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:49:52,277 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 02:49:52,277 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 75 [2020-09-25 02:49:52,277 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 158 [2020-09-25 02:49:52,277 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:49:52,990 WARN L193 SmtUtils]: Spent 204.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 02:49:52,991 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 02:49:53,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:49:53,096 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:49:53,360 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:49:53,361 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 84 [2020-09-25 02:49:53,361 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:49:53,361 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 323 [2020-09-25 02:49:53,362 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:49:53,362 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 02:49:53,362 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:49:53,362 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 71 [2020-09-25 02:49:53,362 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:49:53,499 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2020-09-25 02:49:53,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:49:53,519 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:49:53,576 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:49:53,576 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-25 02:49:53,576 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:49:53,576 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 69 [2020-09-25 02:49:53,577 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:49:53,577 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 02:49:53,577 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:49:53,577 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-09-25 02:49:53,578 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 02:49:53,606 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2020-09-25 02:49:53,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:49:53,626 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:49:53,690 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:49:53,690 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-25 02:49:53,690 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:49:53,690 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 77 [2020-09-25 02:49:53,691 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:49:53,691 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 02:49:53,691 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:49:53,691 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-09-25 02:49:53,691 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:49:53,720 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2020-09-25 02:49:53,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:49:53,735 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:49:53,774 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:49:53,774 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 02:49:53,774 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:49:53,775 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 49 [2020-09-25 02:49:53,775 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:49:53,775 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 02:49:53,776 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:49:53,776 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 02:49:53,776 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 02:49:53,812 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2020-09-25 02:49:53,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:49:53,836 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:49:53,922 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:49:53,922 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-09-25 02:49:53,923 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:49:53,923 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 101 [2020-09-25 02:49:53,923 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:49:53,923 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 02:49:53,924 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:49:53,924 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-09-25 02:49:53,924 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:49:53,953 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2020-09-25 02:49:53,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:49:53,974 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:49:54,057 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:49:54,058 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-09-25 02:49:54,058 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:49:54,058 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 97 [2020-09-25 02:49:54,058 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:49:54,058 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 02:49:54,059 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:49:54,059 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-09-25 02:49:54,059 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:49:54,087 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 187 [2020-09-25 02:49:54,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:49:54,109 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:49:54,173 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:49:54,173 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-09-25 02:49:54,174 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:49:54,174 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 79 [2020-09-25 02:49:54,174 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:49:54,174 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 02:49:54,174 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:49:54,175 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-09-25 02:49:54,175 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:49:54,202 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-25 02:49:54,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:49:54,214 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:49:54,248 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:49:54,248 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 02:49:54,249 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:49:54,249 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 44 [2020-09-25 02:49:54,249 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:49:54,250 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 02:49:54,250 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:49:54,250 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 02:49:54,251 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 02:49:54,409 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2020-09-25 02:49:54,409 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [649194091] [2020-09-25 02:49:54,410 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 02:49:54,410 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-09-25 02:49:54,411 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [226995748] [2020-09-25 02:49:54,411 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-25 02:49:54,412 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 02:49:54,412 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-25 02:49:54,412 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2020-09-25 02:49:54,412 INFO L87 Difference]: Start difference. First operand 1926 states and 2158 transitions. Second operand 7 states. [2020-09-25 02:49:54,665 WARN L193 SmtUtils]: Spent 241.00 ms on a formula simplification that was a NOOP. DAG size: 196 [2020-09-25 02:49:55,413 WARN L193 SmtUtils]: Spent 269.00 ms on a formula simplification that was a NOOP. DAG size: 200 [2020-09-25 02:49:55,818 WARN L193 SmtUtils]: Spent 293.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 02:49:56,350 WARN L193 SmtUtils]: Spent 273.00 ms on a formula simplification that was a NOOP. DAG size: 194 [2020-09-25 02:50:00,851 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 02:50:00,852 INFO L93 Difference]: Finished difference Result 2119 states and 2396 transitions. [2020-09-25 02:50:00,852 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-09-25 02:50:00,852 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 212 [2020-09-25 02:50:00,853 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 02:50:00,865 INFO L225 Difference]: With dead ends: 2119 [2020-09-25 02:50:00,866 INFO L226 Difference]: Without dead ends: 2116 [2020-09-25 02:50:00,867 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=60, Invalid=122, Unknown=0, NotChecked=0, Total=182 [2020-09-25 02:50:00,871 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2116 states. [2020-09-25 02:50:00,993 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2116 to 1925. [2020-09-25 02:50:00,993 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1925 states. [2020-09-25 02:50:01,002 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1925 states to 1925 states and 2156 transitions. [2020-09-25 02:50:01,003 INFO L78 Accepts]: Start accepts. Automaton has 1925 states and 2156 transitions. Word has length 212 [2020-09-25 02:50:01,004 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 02:50:01,004 INFO L479 AbstractCegarLoop]: Abstraction has 1925 states and 2156 transitions. [2020-09-25 02:50:01,004 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-25 02:50:01,004 INFO L276 IsEmpty]: Start isEmpty. Operand 1925 states and 2156 transitions. [2020-09-25 02:50:01,008 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 214 [2020-09-25 02:50:01,008 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 02:50:01,008 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 02:50:01,009 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-25 02:50:01,009 INFO L427 AbstractCegarLoop]: === Iteration 4 === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 02:50:01,009 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 02:50:01,009 INFO L82 PathProgramCache]: Analyzing trace with hash -1883054238, now seen corresponding path program 1 times [2020-09-25 02:50:01,010 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 02:50:01,010 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [733402261] [2020-09-25 02:50:01,010 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 02:50:01,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:50:01,254 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:50:01,708 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:50:01,709 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 238 [2020-09-25 02:50:01,709 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:50:01,709 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 542 [2020-09-25 02:50:01,710 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:50:01,710 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 02:50:01,710 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 76 [2020-09-25 02:50:01,711 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 158 [2020-09-25 02:50:01,711 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 02:50:02,478 WARN L193 SmtUtils]: Spent 268.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 02:50:02,479 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 02:50:02,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:50:02,605 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:50:02,945 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:50:02,945 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 84 [2020-09-25 02:50:02,946 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:50:02,946 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 408 [2020-09-25 02:50:02,946 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:50:02,947 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 02:50:02,947 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:50:02,947 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 72 [2020-09-25 02:50:02,948 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 02:50:03,088 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2020-09-25 02:50:03,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:50:03,107 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:50:03,189 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:50:03,189 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-25 02:50:03,190 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:50:03,190 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 94 [2020-09-25 02:50:03,190 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:50:03,191 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 02:50:03,191 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:50:03,191 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-09-25 02:50:03,192 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 02:50:03,223 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2020-09-25 02:50:03,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:50:03,244 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:50:03,321 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:50:03,322 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-25 02:50:03,322 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:50:03,322 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 92 [2020-09-25 02:50:03,323 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:50:03,323 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 02:50:03,323 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:50:03,324 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-09-25 02:50:03,324 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 02:50:03,353 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2020-09-25 02:50:03,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:50:03,373 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:50:03,416 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:50:03,416 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 02:50:03,417 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:50:03,417 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 58 [2020-09-25 02:50:03,417 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:50:03,418 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 02:50:03,418 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:50:03,418 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 02:50:03,419 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 02:50:03,457 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2020-09-25 02:50:03,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:50:03,482 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:50:03,569 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:50:03,569 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-09-25 02:50:03,570 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:50:03,570 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 104 [2020-09-25 02:50:03,570 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:50:03,570 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 02:50:03,570 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:50:03,571 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-09-25 02:50:03,571 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:50:03,600 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2020-09-25 02:50:03,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:50:03,626 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:50:03,701 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:50:03,701 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-09-25 02:50:03,701 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:50:03,702 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 92 [2020-09-25 02:50:03,702 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:50:03,702 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 02:50:03,702 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:50:03,702 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-09-25 02:50:03,703 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:50:03,735 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 187 [2020-09-25 02:50:03,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:50:03,759 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:50:03,831 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:50:03,831 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-09-25 02:50:03,832 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:50:03,832 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 89 [2020-09-25 02:50:03,832 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:50:03,833 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 02:50:03,833 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:50:03,833 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-09-25 02:50:03,834 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 02:50:03,865 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-25 02:50:03,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 02:50:03,879 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 02:50:03,916 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 02:50:03,917 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 02:50:03,917 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 02:50:03,917 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 49 [2020-09-25 02:50:03,917 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-09-25 02:50:03,917 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 02:50:03,918 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 02:50:03,918 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 02:50:03,918 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 02:50:04,103 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2020-09-25 02:50:04,104 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [733402261] [2020-09-25 02:50:04,105 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 02:50:04,105 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-09-25 02:50:04,105 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1246152216] [2020-09-25 02:50:04,106 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-25 02:50:04,106 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 02:50:04,107 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-25 02:50:04,107 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2020-09-25 02:50:04,107 INFO L87 Difference]: Start difference. First operand 1925 states and 2156 transitions. Second operand 7 states. [2020-09-25 02:50:04,377 WARN L193 SmtUtils]: Spent 260.00 ms on a formula simplification that was a NOOP. DAG size: 196 [2020-09-25 02:50:05,101 WARN L193 SmtUtils]: Spent 247.00 ms on a formula simplification that was a NOOP. DAG size: 200 [2020-09-25 02:50:05,488 WARN L193 SmtUtils]: Spent 280.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 02:50:06,089 WARN L193 SmtUtils]: Spent 285.00 ms on a formula simplification that was a NOOP. DAG size: 194