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 -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf --abstractinterpretationv2.abstract.domain IntervalDomain --traceabstraction.trace.refinement.strategy TAIPAN --traceabstraction.abstract.interpretation.mode USE_PREDICATES -i ../../../trunk/examples/svcomp/product-lines/email_spec1_product28.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-13a467a-m [2019-10-15 01:13:09,469 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-15 01:13:09,471 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-15 01:13:09,493 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-15 01:13:09,493 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-15 01:13:09,495 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-15 01:13:09,497 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-15 01:13:09,507 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-15 01:13:09,512 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-15 01:13:09,516 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-15 01:13:09,517 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-15 01:13:09,519 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-15 01:13:09,519 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-15 01:13:09,521 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-15 01:13:09,523 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-15 01:13:09,524 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-15 01:13:09,526 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-15 01:13:09,527 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-15 01:13:09,529 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-15 01:13:09,533 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-15 01:13:09,537 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-15 01:13:09,540 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-15 01:13:09,543 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-15 01:13:09,543 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-15 01:13:09,545 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-15 01:13:09,546 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-15 01:13:09,546 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-15 01:13:09,547 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-15 01:13:09,548 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-15 01:13:09,549 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-15 01:13:09,550 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-15 01:13:09,551 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-15 01:13:09,552 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-15 01:13:09,553 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-15 01:13:09,555 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-15 01:13:09,555 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-15 01:13:09,555 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-15 01:13:09,556 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-15 01:13:09,556 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-15 01:13:09,557 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-15 01:13:09,558 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-15 01:13:09,559 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2019-10-15 01:13:09,591 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-15 01:13:09,591 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-15 01:13:09,596 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-15 01:13:09,596 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-15 01:13:09,596 INFO L138 SettingsManager]: * Use SBE=true [2019-10-15 01:13:09,596 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-15 01:13:09,597 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-15 01:13:09,597 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-15 01:13:09,597 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-15 01:13:09,597 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-15 01:13:09,597 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-15 01:13:09,598 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-15 01:13:09,598 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-15 01:13:09,598 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-15 01:13:09,599 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-15 01:13:09,599 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-15 01:13:09,599 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-15 01:13:09,599 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-15 01:13:09,599 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-15 01:13:09,600 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-15 01:13:09,600 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-15 01:13:09,600 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-15 01:13:09,600 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-15 01:13:09,600 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-15 01:13:09,601 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-15 01:13:09,601 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-15 01:13:09,601 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-15 01:13:09,601 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-15 01:13:09,601 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2: Abstract domain -> IntervalDomain Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> TAIPAN Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Abstract interpretation Mode -> USE_PREDICATES [2019-10-15 01:13:09,901 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-15 01:13:09,914 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-15 01:13:09,918 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-15 01:13:09,919 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-15 01:13:09,920 INFO L275 PluginConnector]: CDTParser initialized [2019-10-15 01:13:09,920 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/email_spec1_product28.cil.c [2019-10-15 01:13:09,994 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ec8187807/71560d09d0f64a668f756940a66ab9c5/FLAGccc6403fe [2019-10-15 01:13:10,640 INFO L306 CDTParser]: Found 1 translation units. [2019-10-15 01:13:10,641 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/email_spec1_product28.cil.c [2019-10-15 01:13:10,660 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ec8187807/71560d09d0f64a668f756940a66ab9c5/FLAGccc6403fe [2019-10-15 01:13:10,858 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ec8187807/71560d09d0f64a668f756940a66ab9c5 [2019-10-15 01:13:10,868 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-15 01:13:10,869 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-15 01:13:10,870 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-15 01:13:10,870 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-15 01:13:10,874 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-15 01:13:10,875 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 01:13:10" (1/1) ... [2019-10-15 01:13:10,877 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@759a7100 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:13:10, skipping insertion in model container [2019-10-15 01:13:10,877 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 01:13:10" (1/1) ... [2019-10-15 01:13:10,884 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-15 01:13:10,955 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-15 01:13:11,700 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-15 01:13:11,728 INFO L188 MainTranslator]: Completed pre-run [2019-10-15 01:13:11,880 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-15 01:13:11,968 INFO L192 MainTranslator]: Completed translation [2019-10-15 01:13:11,969 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:13:11 WrapperNode [2019-10-15 01:13:11,969 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-15 01:13:11,970 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-15 01:13:11,970 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-15 01:13:11,970 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-15 01:13:11,984 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:13:11" (1/1) ... [2019-10-15 01:13:11,985 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:13:11" (1/1) ... [2019-10-15 01:13:12,016 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:13:11" (1/1) ... [2019-10-15 01:13:12,016 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:13:11" (1/1) ... [2019-10-15 01:13:12,092 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:13:11" (1/1) ... [2019-10-15 01:13:12,129 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:13:11" (1/1) ... [2019-10-15 01:13:12,156 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:13:11" (1/1) ... [2019-10-15 01:13:12,176 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-15 01:13:12,176 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-15 01:13:12,176 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-15 01:13:12,177 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-15 01:13:12,178 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:13:11" (1/1) ... No working directory specified, using /storage/repos/ultimate/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 [2019-10-15 01:13:12,262 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-15 01:13:12,263 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-15 01:13:12,263 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-10-15 01:13:12,263 INFO L138 BoogieDeclarations]: Found implementation of procedure initClient [2019-10-15 01:13:12,264 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientName [2019-10-15 01:13:12,265 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientName [2019-10-15 01:13:12,265 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientOutbuffer [2019-10-15 01:13:12,266 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientOutbuffer [2019-10-15 01:13:12,267 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookSize [2019-10-15 01:13:12,268 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookSize [2019-10-15 01:13:12,268 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientAddressBookEntry [2019-10-15 01:13:12,268 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAlias [2019-10-15 01:13:12,269 INFO L138 BoogieDeclarations]: Found implementation of procedure findClientAddressBookAlias [2019-10-15 01:13:12,270 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAlias [2019-10-15 01:13:12,270 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAddress [2019-10-15 01:13:12,270 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAddress [2019-10-15 01:13:12,273 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAutoResponse [2019-10-15 01:13:12,274 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAutoResponse [2019-10-15 01:13:12,274 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientPrivateKey [2019-10-15 01:13:12,275 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2019-10-15 01:13:12,275 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringSize [2019-10-15 01:13:12,275 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringSize [2019-10-15 01:13:12,276 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2019-10-15 01:13:12,276 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringUser [2019-10-15 01:13:12,276 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2019-10-15 01:13:12,276 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringPublicKey [2019-10-15 01:13:12,277 INFO L138 BoogieDeclarations]: Found implementation of procedure findPublicKey [2019-10-15 01:13:12,277 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2019-10-15 01:13:12,277 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientForwardReceiver [2019-10-15 01:13:12,277 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientForwardReceiver [2019-10-15 01:13:12,278 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientId [2019-10-15 01:13:12,278 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2019-10-15 01:13:12,278 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-10-15 01:13:12,278 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-10-15 01:13:12,279 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-10-15 01:13:12,279 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-10-15 01:13:12,280 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-10-15 01:13:12,280 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-10-15 01:13:12,280 INFO L138 BoogieDeclarations]: Found implementation of procedure prompt [2019-10-15 01:13:12,280 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-10-15 01:13:12,281 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-10-15 01:13:12,281 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-10-15 01:13:12,281 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-10-15 01:13:12,281 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__AddressBookEncrypt_spec__1 [2019-10-15 01:13:12,281 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__Keys [2019-10-15 01:13:12,282 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__Encrypt [2019-10-15 01:13:12,282 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__Sign [2019-10-15 01:13:12,283 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail [2019-10-15 01:13:12,283 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable__wrappee__Keys [2019-10-15 01:13:12,283 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2019-10-15 01:13:12,283 INFO L138 BoogieDeclarations]: Found implementation of procedure cloneEmail [2019-10-15 01:13:12,284 INFO L138 BoogieDeclarations]: Found implementation of procedure createEmail [2019-10-15 01:13:12,284 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob__wrappee__Base [2019-10-15 01:13:12,284 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob [2019-10-15 01:13:12,284 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh__wrappee__Base [2019-10-15 01:13:12,284 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh [2019-10-15 01:13:12,285 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck__wrappee__Base [2019-10-15 01:13:12,285 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck [2019-10-15 01:13:12,285 INFO L138 BoogieDeclarations]: Found implementation of procedure bobToRjh [2019-10-15 01:13:12,285 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhToBob [2019-10-15 01:13:12,285 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-10-15 01:13:12,286 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-15 01:13:12,286 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAdd [2019-10-15 01:13:12,286 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAdd [2019-10-15 01:13:12,286 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAddChuck [2019-10-15 01:13:12,287 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAddChuck [2019-10-15 01:13:12,287 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2019-10-15 01:13:12,287 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAddRjh [2019-10-15 01:13:12,287 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhDeletePrivateKey [2019-10-15 01:13:12,287 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyChange [2019-10-15 01:13:12,287 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyChange [2019-10-15 01:13:12,288 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-10-15 01:13:12,288 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-10-15 01:13:12,289 INFO L138 BoogieDeclarations]: Found implementation of procedure initEmail [2019-10-15 01:13:12,289 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailId [2019-10-15 01:13:12,289 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailId [2019-10-15 01:13:12,289 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2019-10-15 01:13:12,289 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2019-10-15 01:13:12,290 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2019-10-15 01:13:12,290 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2019-10-15 01:13:12,290 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSubject [2019-10-15 01:13:12,291 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSubject [2019-10-15 01:13:12,291 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailBody [2019-10-15 01:13:12,291 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailBody [2019-10-15 01:13:12,292 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2019-10-15 01:13:12,292 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2019-10-15 01:13:12,292 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2019-10-15 01:13:12,293 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2019-10-15 01:13:12,293 INFO L138 BoogieDeclarations]: Found implementation of procedure isSigned [2019-10-15 01:13:12,294 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSigned [2019-10-15 01:13:12,294 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSignKey [2019-10-15 01:13:12,294 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSignKey [2019-10-15 01:13:12,294 INFO L138 BoogieDeclarations]: Found implementation of procedure isVerified [2019-10-15 01:13:12,294 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSignatureVerified [2019-10-15 01:13:12,295 INFO L138 BoogieDeclarations]: Found implementation of procedure mail [2019-10-15 01:13:12,295 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__Keys [2019-10-15 01:13:12,295 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__Encrypt [2019-10-15 01:13:12,295 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2019-10-15 01:13:12,295 INFO L138 BoogieDeclarations]: Found implementation of procedure deliver [2019-10-15 01:13:12,295 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Sign [2019-10-15 01:13:12,295 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Verify [2019-10-15 01:13:12,296 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming [2019-10-15 01:13:12,296 INFO L138 BoogieDeclarations]: Found implementation of procedure createClient [2019-10-15 01:13:12,296 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2019-10-15 01:13:12,296 INFO L138 BoogieDeclarations]: Found implementation of procedure queue [2019-10-15 01:13:12,296 INFO L138 BoogieDeclarations]: Found implementation of procedure is_queue_empty [2019-10-15 01:13:12,296 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_client [2019-10-15 01:13:12,296 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_email [2019-10-15 01:13:12,297 INFO L138 BoogieDeclarations]: Found implementation of procedure isKeyPairValid [2019-10-15 01:13:12,297 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2019-10-15 01:13:12,297 INFO L138 BoogieDeclarations]: Found implementation of procedure sign [2019-10-15 01:13:12,297 INFO L138 BoogieDeclarations]: Found implementation of procedure verify [2019-10-15 01:13:12,297 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-15 01:13:12,298 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-15 01:13:12,298 INFO L130 BoogieDeclarations]: Found specification of procedure initClient [2019-10-15 01:13:12,299 INFO L130 BoogieDeclarations]: Found specification of procedure getClientName [2019-10-15 01:13:12,299 INFO L130 BoogieDeclarations]: Found specification of procedure setClientName [2019-10-15 01:13:12,299 INFO L130 BoogieDeclarations]: Found specification of procedure getClientOutbuffer [2019-10-15 01:13:12,299 INFO L130 BoogieDeclarations]: Found specification of procedure setClientOutbuffer [2019-10-15 01:13:12,299 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookSize [2019-10-15 01:13:12,300 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookSize [2019-10-15 01:13:12,300 INFO L130 BoogieDeclarations]: Found specification of procedure createClientAddressBookEntry [2019-10-15 01:13:12,301 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAlias [2019-10-15 01:13:12,301 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAlias [2019-10-15 01:13:12,303 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAddress [2019-10-15 01:13:12,303 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAddress [2019-10-15 01:13:12,303 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAutoResponse [2019-10-15 01:13:12,303 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAutoResponse [2019-10-15 01:13:12,303 INFO L130 BoogieDeclarations]: Found specification of procedure getClientPrivateKey [2019-10-15 01:13:12,304 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2019-10-15 01:13:12,304 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringSize [2019-10-15 01:13:12,304 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2019-10-15 01:13:12,305 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringUser [2019-10-15 01:13:12,305 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2019-10-15 01:13:12,305 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringPublicKey [2019-10-15 01:13:12,306 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2019-10-15 01:13:12,307 INFO L130 BoogieDeclarations]: Found specification of procedure getClientForwardReceiver [2019-10-15 01:13:12,310 INFO L130 BoogieDeclarations]: Found specification of procedure setClientForwardReceiver [2019-10-15 01:13:12,310 INFO L130 BoogieDeclarations]: Found specification of procedure getClientId [2019-10-15 01:13:12,311 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2019-10-15 01:13:12,311 INFO L130 BoogieDeclarations]: Found specification of procedure findPublicKey [2019-10-15 01:13:12,311 INFO L130 BoogieDeclarations]: Found specification of procedure findClientAddressBookAlias [2019-10-15 01:13:12,311 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringSize [2019-10-15 01:13:12,311 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-10-15 01:13:12,311 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-10-15 01:13:12,311 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-15 01:13:12,312 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-10-15 01:13:12,312 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-15 01:13:12,312 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-15 01:13:12,312 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-15 01:13:12,312 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-15 01:13:12,312 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-10-15 01:13:12,313 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-15 01:13:12,313 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-10-15 01:13:12,313 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-10-15 01:13:12,313 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-15 01:13:12,313 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-10-15 01:13:12,314 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-10-15 01:13:12,314 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-15 01:13:12,314 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-10-15 01:13:12,314 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-10-15 01:13:12,314 INFO L130 BoogieDeclarations]: Found specification of procedure prompt [2019-10-15 01:13:12,315 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-10-15 01:13:12,315 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-10-15 01:13:12,315 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-10-15 01:13:12,315 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-10-15 01:13:12,315 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-10-15 01:13:12,316 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2019-10-15 01:13:12,316 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2019-10-15 01:13:12,316 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__AddressBookEncrypt_spec__1 [2019-10-15 01:13:12,316 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailId [2019-10-15 01:13:12,316 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2019-10-15 01:13:12,317 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2019-10-15 01:13:12,317 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2019-10-15 01:13:12,317 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2019-10-15 01:13:12,317 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2019-10-15 01:13:12,317 INFO L130 BoogieDeclarations]: Found specification of procedure isSigned [2019-10-15 01:13:12,317 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSignKey [2019-10-15 01:13:12,318 INFO L130 BoogieDeclarations]: Found specification of procedure isVerified [2019-10-15 01:13:12,318 INFO L130 BoogieDeclarations]: Found specification of procedure printMail [2019-10-15 01:13:12,318 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2019-10-15 01:13:12,318 INFO L130 BoogieDeclarations]: Found specification of procedure createEmail [2019-10-15 01:13:12,318 INFO L130 BoogieDeclarations]: Found specification of procedure cloneEmail [2019-10-15 01:13:12,319 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__Keys [2019-10-15 01:13:12,319 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__Encrypt [2019-10-15 01:13:12,319 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__Sign [2019-10-15 01:13:12,319 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable__wrappee__Keys [2019-10-15 01:13:12,319 INFO L130 BoogieDeclarations]: Found specification of procedure is_queue_empty [2019-10-15 01:13:12,320 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_client [2019-10-15 01:13:12,320 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_email [2019-10-15 01:13:12,320 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2019-10-15 01:13:12,320 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2019-10-15 01:13:12,320 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2019-10-15 01:13:12,320 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob [2019-10-15 01:13:12,321 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh [2019-10-15 01:13:12,321 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck [2019-10-15 01:13:12,321 INFO L130 BoogieDeclarations]: Found specification of procedure bobToRjh [2019-10-15 01:13:12,321 INFO L130 BoogieDeclarations]: Found specification of procedure rjhToBob [2019-10-15 01:13:12,321 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-10-15 01:13:12,321 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-10-15 01:13:12,321 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-15 01:13:12,322 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAdd [2019-10-15 01:13:12,322 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAddChuck [2019-10-15 01:13:12,322 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAdd [2019-10-15 01:13:12,322 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAddChuck [2019-10-15 01:13:12,322 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2019-10-15 01:13:12,322 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyChange [2019-10-15 01:13:12,322 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyChange [2019-10-15 01:13:12,323 INFO L130 BoogieDeclarations]: Found specification of procedure rjhDeletePrivateKey [2019-10-15 01:13:12,323 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAddRjh [2019-10-15 01:13:12,323 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob__wrappee__Base [2019-10-15 01:13:12,323 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh__wrappee__Base [2019-10-15 01:13:12,323 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck__wrappee__Base [2019-10-15 01:13:12,323 INFO L130 BoogieDeclarations]: Found specification of procedure initEmail [2019-10-15 01:13:12,324 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailId [2019-10-15 01:13:12,324 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSubject [2019-10-15 01:13:12,324 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSubject [2019-10-15 01:13:12,324 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailBody [2019-10-15 01:13:12,324 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailBody [2019-10-15 01:13:12,324 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2019-10-15 01:13:12,324 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2019-10-15 01:13:12,325 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSigned [2019-10-15 01:13:12,325 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSignKey [2019-10-15 01:13:12,325 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSignatureVerified [2019-10-15 01:13:12,325 INFO L130 BoogieDeclarations]: Found specification of procedure queue [2019-10-15 01:13:12,325 INFO L130 BoogieDeclarations]: Found specification of procedure mail [2019-10-15 01:13:12,325 INFO L130 BoogieDeclarations]: Found specification of procedure deliver [2019-10-15 01:13:12,325 INFO L130 BoogieDeclarations]: Found specification of procedure incoming [2019-10-15 01:13:12,325 INFO L130 BoogieDeclarations]: Found specification of procedure createClient [2019-10-15 01:13:12,326 INFO L130 BoogieDeclarations]: Found specification of procedure isKeyPairValid [2019-10-15 01:13:12,326 INFO L130 BoogieDeclarations]: Found specification of procedure sign [2019-10-15 01:13:12,326 INFO L130 BoogieDeclarations]: Found specification of procedure verify [2019-10-15 01:13:12,326 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__Keys [2019-10-15 01:13:12,326 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__Encrypt [2019-10-15 01:13:12,326 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Sign [2019-10-15 01:13:12,326 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Verify [2019-10-15 01:13:12,327 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-15 01:13:12,327 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-15 01:13:12,327 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-15 01:13:14,798 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-15 01:13:14,798 INFO L284 CfgBuilder]: Removed 4 assume(true) statements. [2019-10-15 01:13:14,801 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 01:13:14 BoogieIcfgContainer [2019-10-15 01:13:14,801 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-15 01:13:14,803 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-15 01:13:14,803 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-15 01:13:14,807 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-15 01:13:14,807 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.10 01:13:10" (1/3) ... [2019-10-15 01:13:14,808 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1e7433fa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 01:13:14, skipping insertion in model container [2019-10-15 01:13:14,808 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:13:11" (2/3) ... [2019-10-15 01:13:14,809 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1e7433fa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 01:13:14, skipping insertion in model container [2019-10-15 01:13:14,809 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 01:13:14" (3/3) ... [2019-10-15 01:13:14,811 INFO L109 eAbstractionObserver]: Analyzing ICFG email_spec1_product28.cil.c [2019-10-15 01:13:14,822 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-15 01:13:14,832 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-15 01:13:14,844 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-15 01:13:14,879 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-15 01:13:14,879 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-15 01:13:14,880 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-15 01:13:14,880 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-15 01:13:14,880 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-15 01:13:14,880 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-15 01:13:14,880 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-15 01:13:14,880 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-15 01:13:14,911 INFO L276 IsEmpty]: Start isEmpty. Operand 509 states. [2019-10-15 01:13:14,932 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2019-10-15 01:13:14,932 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:13:14,933 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 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] [2019-10-15 01:13:14,935 INFO L410 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:13:14,941 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:13:14,942 INFO L82 PathProgramCache]: Analyzing trace with hash 90339027, now seen corresponding path program 1 times [2019-10-15 01:13:14,953 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:13:14,953 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1030536745] [2019-10-15 01:13:14,954 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:13:14,954 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:13:14,954 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:13:15,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:13:15,671 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2019-10-15 01:13:15,672 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1030536745] [2019-10-15 01:13:15,673 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:13:15,673 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-10-15 01:13:15,673 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1318068819] [2019-10-15 01:13:15,679 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-15 01:13:15,680 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:13:15,696 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-15 01:13:15,697 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-15 01:13:15,700 INFO L87 Difference]: Start difference. First operand 509 states. Second operand 2 states. [2019-10-15 01:13:15,774 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:13:15,774 INFO L93 Difference]: Finished difference Result 715 states and 948 transitions. [2019-10-15 01:13:15,775 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-15 01:13:15,776 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 158 [2019-10-15 01:13:15,777 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:13:15,800 INFO L225 Difference]: With dead ends: 715 [2019-10-15 01:13:15,800 INFO L226 Difference]: Without dead ends: 458 [2019-10-15 01:13:15,806 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-15 01:13:15,828 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 458 states. [2019-10-15 01:13:15,928 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 458 to 458. [2019-10-15 01:13:15,929 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 458 states. [2019-10-15 01:13:15,940 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 458 states to 458 states and 611 transitions. [2019-10-15 01:13:15,943 INFO L78 Accepts]: Start accepts. Automaton has 458 states and 611 transitions. Word has length 158 [2019-10-15 01:13:15,946 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:13:15,946 INFO L462 AbstractCegarLoop]: Abstraction has 458 states and 611 transitions. [2019-10-15 01:13:15,947 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-15 01:13:15,947 INFO L276 IsEmpty]: Start isEmpty. Operand 458 states and 611 transitions. [2019-10-15 01:13:15,964 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2019-10-15 01:13:15,964 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:13:15,965 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 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] [2019-10-15 01:13:15,965 INFO L410 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:13:15,966 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:13:15,966 INFO L82 PathProgramCache]: Analyzing trace with hash -2056663134, now seen corresponding path program 1 times [2019-10-15 01:13:15,967 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:13:15,967 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [967332778] [2019-10-15 01:13:15,967 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:13:15,967 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:13:15,967 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:13:16,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:13:16,188 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2019-10-15 01:13:16,189 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [967332778] [2019-10-15 01:13:16,189 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:13:16,189 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-15 01:13:16,190 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1625674401] [2019-10-15 01:13:16,192 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-15 01:13:16,192 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:13:16,192 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-15 01:13:16,193 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 01:13:16,193 INFO L87 Difference]: Start difference. First operand 458 states and 611 transitions. Second operand 3 states. [2019-10-15 01:13:16,243 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:13:16,243 INFO L93 Difference]: Finished difference Result 698 states and 916 transitions. [2019-10-15 01:13:16,243 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-15 01:13:16,244 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 159 [2019-10-15 01:13:16,246 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:13:16,252 INFO L225 Difference]: With dead ends: 698 [2019-10-15 01:13:16,253 INFO L226 Difference]: Without dead ends: 461 [2019-10-15 01:13:16,259 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 01:13:16,260 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 461 states. [2019-10-15 01:13:16,289 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 461 to 460. [2019-10-15 01:13:16,289 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 460 states. [2019-10-15 01:13:16,294 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 460 states to 460 states and 613 transitions. [2019-10-15 01:13:16,295 INFO L78 Accepts]: Start accepts. Automaton has 460 states and 613 transitions. Word has length 159 [2019-10-15 01:13:16,295 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:13:16,296 INFO L462 AbstractCegarLoop]: Abstraction has 460 states and 613 transitions. [2019-10-15 01:13:16,296 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-15 01:13:16,296 INFO L276 IsEmpty]: Start isEmpty. Operand 460 states and 613 transitions. [2019-10-15 01:13:16,301 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2019-10-15 01:13:16,301 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:13:16,301 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 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] [2019-10-15 01:13:16,301 INFO L410 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:13:16,302 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:13:16,302 INFO L82 PathProgramCache]: Analyzing trace with hash -916505354, now seen corresponding path program 1 times [2019-10-15 01:13:16,302 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:13:16,302 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1515569912] [2019-10-15 01:13:16,303 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:13:16,303 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:13:16,303 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:13:16,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:13:16,581 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2019-10-15 01:13:16,581 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1515569912] [2019-10-15 01:13:16,582 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:13:16,582 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-15 01:13:16,582 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [109971136] [2019-10-15 01:13:16,583 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-15 01:13:16,583 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:13:16,583 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-15 01:13:16,583 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 01:13:16,584 INFO L87 Difference]: Start difference. First operand 460 states and 613 transitions. Second operand 3 states. [2019-10-15 01:13:16,616 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:13:16,617 INFO L93 Difference]: Finished difference Result 894 states and 1221 transitions. [2019-10-15 01:13:16,617 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-15 01:13:16,617 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 165 [2019-10-15 01:13:16,618 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:13:16,621 INFO L225 Difference]: With dead ends: 894 [2019-10-15 01:13:16,622 INFO L226 Difference]: Without dead ends: 499 [2019-10-15 01:13:16,623 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 01:13:16,625 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 499 states. [2019-10-15 01:13:16,640 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 499 to 498. [2019-10-15 01:13:16,640 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 498 states. [2019-10-15 01:13:16,643 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 498 states to 498 states and 679 transitions. [2019-10-15 01:13:16,643 INFO L78 Accepts]: Start accepts. Automaton has 498 states and 679 transitions. Word has length 165 [2019-10-15 01:13:16,644 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:13:16,644 INFO L462 AbstractCegarLoop]: Abstraction has 498 states and 679 transitions. [2019-10-15 01:13:16,644 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-15 01:13:16,644 INFO L276 IsEmpty]: Start isEmpty. Operand 498 states and 679 transitions. [2019-10-15 01:13:16,647 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 167 [2019-10-15 01:13:16,648 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:13:16,648 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 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] [2019-10-15 01:13:16,648 INFO L410 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:13:16,649 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:13:16,649 INFO L82 PathProgramCache]: Analyzing trace with hash 1378701961, now seen corresponding path program 1 times [2019-10-15 01:13:16,649 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:13:16,649 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1082908434] [2019-10-15 01:13:16,649 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:13:16,650 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:13:16,650 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:13:16,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:13:18,257 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2019-10-15 01:13:18,257 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1082908434] [2019-10-15 01:13:18,257 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:13:18,258 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [38] imperfect sequences [] total 38 [2019-10-15 01:13:18,258 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1205159913] [2019-10-15 01:13:18,259 INFO L442 AbstractCegarLoop]: Interpolant automaton has 38 states [2019-10-15 01:13:18,259 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:13:18,261 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 38 interpolants. [2019-10-15 01:13:18,263 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=79, Invalid=1327, Unknown=0, NotChecked=0, Total=1406 [2019-10-15 01:13:18,263 INFO L87 Difference]: Start difference. First operand 498 states and 679 transitions. Second operand 38 states. [2019-10-15 01:13:23,151 WARN L191 SmtUtils]: Spent 175.00 ms on a formula simplification. DAG size of input: 38 DAG size of output: 34 [2019-10-15 01:13:29,102 WARN L191 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 37 DAG size of output: 34 [2019-10-15 01:13:32,199 WARN L191 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 39 DAG size of output: 35