/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 -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/product-lines/email_spec0_product11.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-fb55353 [2019-11-06 21:36:53,169 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-06 21:36:53,171 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-06 21:36:53,183 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-06 21:36:53,183 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-06 21:36:53,184 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-06 21:36:53,186 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-06 21:36:53,188 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-06 21:36:53,189 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-06 21:36:53,190 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-06 21:36:53,191 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-06 21:36:53,192 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-06 21:36:53,193 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-06 21:36:53,194 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-06 21:36:53,195 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-06 21:36:53,196 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-06 21:36:53,197 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-06 21:36:53,198 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-06 21:36:53,200 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-06 21:36:53,202 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-06 21:36:53,203 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-06 21:36:53,204 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-06 21:36:53,205 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-06 21:36:53,206 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-06 21:36:53,209 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-06 21:36:53,209 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-06 21:36:53,209 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-06 21:36:53,210 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-06 21:36:53,210 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-06 21:36:53,211 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-06 21:36:53,212 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-06 21:36:53,212 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-06 21:36:53,213 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-06 21:36:53,214 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-06 21:36:53,215 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-06 21:36:53,215 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-06 21:36:53,216 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-06 21:36:53,216 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-06 21:36:53,216 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-06 21:36:53,217 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-06 21:36:53,218 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-06 21:36:53,219 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 [2019-11-06 21:36:53,232 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-06 21:36:53,233 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-06 21:36:53,234 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-06 21:36:53,234 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-06 21:36:53,234 INFO L138 SettingsManager]: * Use SBE=true [2019-11-06 21:36:53,235 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-06 21:36:53,235 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-06 21:36:53,235 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-06 21:36:53,235 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-06 21:36:53,235 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-06 21:36:53,235 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-06 21:36:53,236 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-06 21:36:53,236 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-06 21:36:53,236 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-06 21:36:53,236 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-06 21:36:53,236 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-06 21:36:53,237 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-06 21:36:53,237 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-06 21:36:53,237 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-06 21:36:53,237 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-06 21:36:53,237 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-06 21:36:53,238 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-06 21:36:53,238 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-06 21:36:53,238 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-06 21:36:53,238 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-06 21:36:53,239 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-06 21:36:53,239 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-06 21:36:53,239 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-06 21:36:53,239 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-11-06 21:36:53,560 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-06 21:36:53,582 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-06 21:36:53,588 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-06 21:36:53,589 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-06 21:36:53,590 INFO L275 PluginConnector]: CDTParser initialized [2019-11-06 21:36:53,591 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/email_spec0_product11.cil.c [2019-11-06 21:36:53,663 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3fd6a93c7/b8afa4ce2b904b9383804c0c0685bdaa/FLAGca6fbb0ff [2019-11-06 21:36:54,231 INFO L306 CDTParser]: Found 1 translation units. [2019-11-06 21:36:54,234 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/email_spec0_product11.cil.c [2019-11-06 21:36:54,262 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3fd6a93c7/b8afa4ce2b904b9383804c0c0685bdaa/FLAGca6fbb0ff [2019-11-06 21:36:54,418 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3fd6a93c7/b8afa4ce2b904b9383804c0c0685bdaa [2019-11-06 21:36:54,427 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-06 21:36:54,430 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-11-06 21:36:54,434 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-06 21:36:54,434 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-06 21:36:54,438 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-06 21:36:54,439 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 09:36:54" (1/1) ... [2019-11-06 21:36:54,442 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5e63c10f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:36:54, skipping insertion in model container [2019-11-06 21:36:54,442 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 09:36:54" (1/1) ... [2019-11-06 21:36:54,451 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-06 21:36:54,525 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-06 21:36:55,271 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-06 21:36:55,289 INFO L188 MainTranslator]: Completed pre-run [2019-11-06 21:36:55,461 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-06 21:36:55,535 INFO L192 MainTranslator]: Completed translation [2019-11-06 21:36:55,536 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:36:55 WrapperNode [2019-11-06 21:36:55,536 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-06 21:36:55,537 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-06 21:36:55,537 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-06 21:36:55,537 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-06 21:36:55,548 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:36:55" (1/1) ... [2019-11-06 21:36:55,549 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:36:55" (1/1) ... [2019-11-06 21:36:55,578 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:36:55" (1/1) ... [2019-11-06 21:36:55,578 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:36:55" (1/1) ... [2019-11-06 21:36:55,658 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:36:55" (1/1) ... [2019-11-06 21:36:55,682 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:36:55" (1/1) ... [2019-11-06 21:36:55,707 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:36:55" (1/1) ... [2019-11-06 21:36:55,740 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-06 21:36:55,741 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-06 21:36:55,741 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-06 21:36:55,741 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-06 21:36:55,742 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:36:55" (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 [2019-11-06 21:36:55,813 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-11-06 21:36:55,813 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-06 21:36:55,813 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-11-06 21:36:55,814 INFO L138 BoogieDeclarations]: Found implementation of procedure initEmail [2019-11-06 21:36:55,814 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailId [2019-11-06 21:36:55,815 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailId [2019-11-06 21:36:55,815 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2019-11-06 21:36:55,815 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2019-11-06 21:36:55,816 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2019-11-06 21:36:55,816 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2019-11-06 21:36:55,816 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSubject [2019-11-06 21:36:55,816 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSubject [2019-11-06 21:36:55,817 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailBody [2019-11-06 21:36:55,817 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailBody [2019-11-06 21:36:55,818 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2019-11-06 21:36:55,819 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2019-11-06 21:36:55,821 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2019-11-06 21:36:55,821 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2019-11-06 21:36:55,821 INFO L138 BoogieDeclarations]: Found implementation of procedure isSigned [2019-11-06 21:36:55,822 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSigned [2019-11-06 21:36:55,822 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSignKey [2019-11-06 21:36:55,822 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSignKey [2019-11-06 21:36:55,822 INFO L138 BoogieDeclarations]: Found implementation of procedure isVerified [2019-11-06 21:36:55,822 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSignatureVerified [2019-11-06 21:36:55,823 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-11-06 21:36:55,823 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-11-06 21:36:55,823 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-11-06 21:36:55,823 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-11-06 21:36:55,824 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail [2019-11-06 21:36:55,824 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2019-11-06 21:36:55,824 INFO L138 BoogieDeclarations]: Found implementation of procedure cloneEmail [2019-11-06 21:36:55,824 INFO L138 BoogieDeclarations]: Found implementation of procedure createEmail [2019-11-06 21:36:55,825 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob__wrappee__Base [2019-11-06 21:36:55,825 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob [2019-11-06 21:36:55,825 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh__wrappee__Base [2019-11-06 21:36:55,825 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh [2019-11-06 21:36:55,825 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck__wrappee__Base [2019-11-06 21:36:55,825 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck [2019-11-06 21:36:55,826 INFO L138 BoogieDeclarations]: Found implementation of procedure bobToRjh [2019-11-06 21:36:55,826 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhToBob [2019-11-06 21:36:55,826 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-11-06 21:36:55,826 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-11-06 21:36:55,827 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAdd [2019-11-06 21:36:55,827 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAdd [2019-11-06 21:36:55,827 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAddChuck [2019-11-06 21:36:55,827 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAddChuck [2019-11-06 21:36:55,827 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2019-11-06 21:36:55,827 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAddRjh [2019-11-06 21:36:55,828 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhDeletePrivateKey [2019-11-06 21:36:55,828 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyChange [2019-11-06 21:36:55,828 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyChange [2019-11-06 21:36:55,828 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhEnableForwarding [2019-11-06 21:36:55,828 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__DecryptForward_spec__1 [2019-11-06 21:36:55,829 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-11-06 21:36:55,829 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-11-06 21:36:55,829 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-11-06 21:36:55,829 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-11-06 21:36:55,829 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-11-06 21:36:55,830 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-11-06 21:36:55,830 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-11-06 21:36:55,830 INFO L138 BoogieDeclarations]: Found implementation of procedure mail [2019-11-06 21:36:55,830 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2019-11-06 21:36:55,830 INFO L138 BoogieDeclarations]: Found implementation of procedure deliver [2019-11-06 21:36:55,830 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Keys [2019-11-06 21:36:55,831 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming [2019-11-06 21:36:55,831 INFO L138 BoogieDeclarations]: Found implementation of procedure createClient [2019-11-06 21:36:55,831 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2019-11-06 21:36:55,832 INFO L138 BoogieDeclarations]: Found implementation of procedure queue [2019-11-06 21:36:55,832 INFO L138 BoogieDeclarations]: Found implementation of procedure is_queue_empty [2019-11-06 21:36:55,832 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_client [2019-11-06 21:36:55,832 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_email [2019-11-06 21:36:55,832 INFO L138 BoogieDeclarations]: Found implementation of procedure isKeyPairValid [2019-11-06 21:36:55,833 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2019-11-06 21:36:55,833 INFO L138 BoogieDeclarations]: Found implementation of procedure forward [2019-11-06 21:36:55,834 INFO L138 BoogieDeclarations]: Found implementation of procedure initClient [2019-11-06 21:36:55,834 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientName [2019-11-06 21:36:55,834 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientName [2019-11-06 21:36:55,834 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientOutbuffer [2019-11-06 21:36:55,834 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientOutbuffer [2019-11-06 21:36:55,835 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookSize [2019-11-06 21:36:55,835 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookSize [2019-11-06 21:36:55,835 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientAddressBookEntry [2019-11-06 21:36:55,836 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAlias [2019-11-06 21:36:55,836 INFO L138 BoogieDeclarations]: Found implementation of procedure findClientAddressBookAlias [2019-11-06 21:36:55,836 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAlias [2019-11-06 21:36:55,836 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAddress [2019-11-06 21:36:55,837 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAddress [2019-11-06 21:36:55,838 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAutoResponse [2019-11-06 21:36:55,838 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAutoResponse [2019-11-06 21:36:55,838 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientPrivateKey [2019-11-06 21:36:55,838 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2019-11-06 21:36:55,839 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringSize [2019-11-06 21:36:55,839 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringSize [2019-11-06 21:36:55,840 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2019-11-06 21:36:55,840 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringUser [2019-11-06 21:36:55,840 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2019-11-06 21:36:55,840 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringPublicKey [2019-11-06 21:36:55,840 INFO L138 BoogieDeclarations]: Found implementation of procedure findPublicKey [2019-11-06 21:36:55,841 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2019-11-06 21:36:55,841 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientForwardReceiver [2019-11-06 21:36:55,841 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientForwardReceiver [2019-11-06 21:36:55,841 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientId [2019-11-06 21:36:55,841 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2019-11-06 21:36:55,841 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-11-06 21:36:55,842 INFO L138 BoogieDeclarations]: Found implementation of procedure prompt [2019-11-06 21:36:55,842 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-11-06 21:36:55,842 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-11-06 21:36:55,842 INFO L130 BoogieDeclarations]: Found specification of procedure initEmail [2019-11-06 21:36:55,842 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailId [2019-11-06 21:36:55,843 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailId [2019-11-06 21:36:55,843 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2019-11-06 21:36:55,843 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2019-11-06 21:36:55,843 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2019-11-06 21:36:55,843 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2019-11-06 21:36:55,843 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSubject [2019-11-06 21:36:55,844 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSubject [2019-11-06 21:36:55,844 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailBody [2019-11-06 21:36:55,844 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailBody [2019-11-06 21:36:55,845 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2019-11-06 21:36:55,845 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2019-11-06 21:36:55,845 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2019-11-06 21:36:55,846 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2019-11-06 21:36:55,846 INFO L130 BoogieDeclarations]: Found specification of procedure isSigned [2019-11-06 21:36:55,847 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSigned [2019-11-06 21:36:55,848 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSignKey [2019-11-06 21:36:55,848 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSignKey [2019-11-06 21:36:55,848 INFO L130 BoogieDeclarations]: Found specification of procedure isVerified [2019-11-06 21:36:55,848 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSignatureVerified [2019-11-06 21:36:55,848 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-11-06 21:36:55,849 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-11-06 21:36:55,849 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-11-06 21:36:55,849 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-11-06 21:36:55,850 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-11-06 21:36:55,850 INFO L130 BoogieDeclarations]: Found specification of procedure printMail [2019-11-06 21:36:55,850 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2019-11-06 21:36:55,850 INFO L130 BoogieDeclarations]: Found specification of procedure createEmail [2019-11-06 21:36:55,850 INFO L130 BoogieDeclarations]: Found specification of procedure cloneEmail [2019-11-06 21:36:55,851 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-06 21:36:55,851 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2019-11-06 21:36:55,852 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2019-11-06 21:36:55,855 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2019-11-06 21:36:55,856 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringUser [2019-11-06 21:36:55,859 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2019-11-06 21:36:55,860 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringPublicKey [2019-11-06 21:36:55,867 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2019-11-06 21:36:55,868 INFO L130 BoogieDeclarations]: Found specification of procedure setClientForwardReceiver [2019-11-06 21:36:55,868 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2019-11-06 21:36:55,868 INFO L130 BoogieDeclarations]: Found specification of procedure is_queue_empty [2019-11-06 21:36:55,868 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_client [2019-11-06 21:36:55,868 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_email [2019-11-06 21:36:55,868 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2019-11-06 21:36:55,869 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2019-11-06 21:36:55,869 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2019-11-06 21:36:55,869 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob [2019-11-06 21:36:55,869 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh [2019-11-06 21:36:55,869 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck [2019-11-06 21:36:55,869 INFO L130 BoogieDeclarations]: Found specification of procedure bobToRjh [2019-11-06 21:36:55,870 INFO L130 BoogieDeclarations]: Found specification of procedure rjhToBob [2019-11-06 21:36:55,870 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-11-06 21:36:55,871 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-11-06 21:36:55,871 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-11-06 21:36:55,871 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAdd [2019-11-06 21:36:55,871 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAddChuck [2019-11-06 21:36:55,871 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAdd [2019-11-06 21:36:55,871 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAddChuck [2019-11-06 21:36:55,872 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2019-11-06 21:36:55,872 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyChange [2019-11-06 21:36:55,872 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyChange [2019-11-06 21:36:55,872 INFO L130 BoogieDeclarations]: Found specification of procedure rjhDeletePrivateKey [2019-11-06 21:36:55,872 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAddRjh [2019-11-06 21:36:55,872 INFO L130 BoogieDeclarations]: Found specification of procedure rjhEnableForwarding [2019-11-06 21:36:55,872 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob__wrappee__Base [2019-11-06 21:36:55,873 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh__wrappee__Base [2019-11-06 21:36:55,873 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck__wrappee__Base [2019-11-06 21:36:55,873 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-11-06 21:36:55,873 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__DecryptForward_spec__1 [2019-11-06 21:36:55,873 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-11-06 21:36:55,873 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-11-06 21:36:55,874 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-11-06 21:36:55,874 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-11-06 21:36:55,874 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-11-06 21:36:55,874 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-11-06 21:36:55,874 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-11-06 21:36:55,874 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-11-06 21:36:55,874 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-11-06 21:36:55,875 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-06 21:36:55,875 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-11-06 21:36:55,875 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-11-06 21:36:55,875 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-11-06 21:36:55,875 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-11-06 21:36:55,875 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-11-06 21:36:55,875 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-11-06 21:36:55,876 INFO L130 BoogieDeclarations]: Found specification of procedure initClient [2019-11-06 21:36:55,876 INFO L130 BoogieDeclarations]: Found specification of procedure getClientForwardReceiver [2019-11-06 21:36:55,876 INFO L130 BoogieDeclarations]: Found specification of procedure getClientId [2019-11-06 21:36:55,877 INFO L130 BoogieDeclarations]: Found specification of procedure queue [2019-11-06 21:36:55,877 INFO L130 BoogieDeclarations]: Found specification of procedure mail [2019-11-06 21:36:55,877 INFO L130 BoogieDeclarations]: Found specification of procedure deliver [2019-11-06 21:36:55,877 INFO L130 BoogieDeclarations]: Found specification of procedure incoming [2019-11-06 21:36:55,877 INFO L130 BoogieDeclarations]: Found specification of procedure createClient [2019-11-06 21:36:55,877 INFO L130 BoogieDeclarations]: Found specification of procedure isKeyPairValid [2019-11-06 21:36:55,878 INFO L130 BoogieDeclarations]: Found specification of procedure forward [2019-11-06 21:36:55,878 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Keys [2019-11-06 21:36:55,878 INFO L130 BoogieDeclarations]: Found specification of procedure getClientName [2019-11-06 21:36:55,878 INFO L130 BoogieDeclarations]: Found specification of procedure setClientName [2019-11-06 21:36:55,878 INFO L130 BoogieDeclarations]: Found specification of procedure getClientOutbuffer [2019-11-06 21:36:55,878 INFO L130 BoogieDeclarations]: Found specification of procedure setClientOutbuffer [2019-11-06 21:36:55,879 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookSize [2019-11-06 21:36:55,879 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookSize [2019-11-06 21:36:55,879 INFO L130 BoogieDeclarations]: Found specification of procedure createClientAddressBookEntry [2019-11-06 21:36:55,879 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAlias [2019-11-06 21:36:55,879 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAlias [2019-11-06 21:36:55,879 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAddress [2019-11-06 21:36:55,880 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAddress [2019-11-06 21:36:55,880 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAutoResponse [2019-11-06 21:36:55,880 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAutoResponse [2019-11-06 21:36:55,880 INFO L130 BoogieDeclarations]: Found specification of procedure getClientPrivateKey [2019-11-06 21:36:55,880 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringSize [2019-11-06 21:36:55,880 INFO L130 BoogieDeclarations]: Found specification of procedure findPublicKey [2019-11-06 21:36:55,881 INFO L130 BoogieDeclarations]: Found specification of procedure findClientAddressBookAlias [2019-11-06 21:36:55,881 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringSize [2019-11-06 21:36:55,881 INFO L130 BoogieDeclarations]: Found specification of procedure prompt [2019-11-06 21:36:55,881 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-11-06 21:36:55,881 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-11-06 21:36:55,881 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-06 21:36:58,303 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-06 21:36:58,304 INFO L284 CfgBuilder]: Removed 4 assume(true) statements. [2019-11-06 21:36:58,305 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 09:36:58 BoogieIcfgContainer [2019-11-06 21:36:58,306 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-06 21:36:58,307 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-06 21:36:58,307 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-06 21:36:58,310 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-06 21:36:58,310 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.11 09:36:54" (1/3) ... [2019-11-06 21:36:58,311 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@721cc38 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 09:36:58, skipping insertion in model container [2019-11-06 21:36:58,311 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:36:55" (2/3) ... [2019-11-06 21:36:58,311 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@721cc38 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 09:36:58, skipping insertion in model container [2019-11-06 21:36:58,312 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 09:36:58" (3/3) ... [2019-11-06 21:36:58,313 INFO L109 eAbstractionObserver]: Analyzing ICFG email_spec0_product11.cil.c [2019-11-06 21:36:58,323 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-06 21:36:58,332 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-06 21:36:58,343 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-06 21:36:58,379 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-06 21:36:58,379 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-06 21:36:58,379 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-06 21:36:58,379 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-06 21:36:58,379 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-06 21:36:58,379 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-06 21:36:58,379 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-06 21:36:58,380 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-06 21:36:58,416 INFO L276 IsEmpty]: Start isEmpty. Operand 386 states. [2019-11-06 21:36:58,450 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2019-11-06 21:36:58,450 INFO L402 BasicCegarLoop]: Found error trace [2019-11-06 21:36:58,452 INFO L410 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-06 21:36:58,454 INFO L410 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-06 21:36:58,460 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-06 21:36:58,460 INFO L82 PathProgramCache]: Analyzing trace with hash -1891169114, now seen corresponding path program 1 times [2019-11-06 21:36:58,469 INFO L161 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-06 21:36:58,470 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [938504492] [2019-11-06 21:36:58,470 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-06 21:36:58,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:37:00,652 WARN L191 SmtUtils]: Spent 1.60 s on a formula simplification that was a NOOP. DAG size: 523 [2019-11-06 21:37:00,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:37:00,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:37:00,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:37:00,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:37:00,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:37:00,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:37:00,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:37:00,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:37:00,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:37:00,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:37:00,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:37:00,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:37:00,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:37:00,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:37:00,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:37:00,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:37:00,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:37:00,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:37:00,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:37:00,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:37:00,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:37:00,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:37:00,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:37:00,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:37:00,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:37:00,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:37:00,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:37:00,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:37:01,011 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2019-11-06 21:37:01,012 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [938504492] [2019-11-06 21:37:01,013 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-06 21:37:01,013 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2019-11-06 21:37:01,014 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [963608822] [2019-11-06 21:37:01,019 INFO L442 AbstractCegarLoop]: Interpolant automaton has 10 states [2019-11-06 21:37:01,020 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-06 21:37:01,034 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2019-11-06 21:37:01,035 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=59, Unknown=0, NotChecked=0, Total=90 [2019-11-06 21:37:01,037 INFO L87 Difference]: Start difference. First operand 386 states. Second operand 10 states. [2019-11-06 21:37:10,972 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-06 21:37:10,972 INFO L93 Difference]: Finished difference Result 853 states and 1268 transitions. [2019-11-06 21:37:10,978 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2019-11-06 21:37:10,979 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 157 [2019-11-06 21:37:10,980 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-06 21:37:11,012 INFO L225 Difference]: With dead ends: 853 [2019-11-06 21:37:11,012 INFO L226 Difference]: Without dead ends: 630 [2019-11-06 21:37:11,019 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 75 GetRequests, 55 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 75 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=147, Invalid=315, Unknown=0, NotChecked=0, Total=462 [2019-11-06 21:37:11,045 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 630 states. [2019-11-06 21:37:11,272 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 630 to 363. [2019-11-06 21:37:11,273 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 363 states. [2019-11-06 21:37:11,276 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 363 states to 363 states and 476 transitions. [2019-11-06 21:37:11,278 INFO L78 Accepts]: Start accepts. Automaton has 363 states and 476 transitions. Word has length 157 [2019-11-06 21:37:11,279 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-06 21:37:11,279 INFO L462 AbstractCegarLoop]: Abstraction has 363 states and 476 transitions. [2019-11-06 21:37:11,279 INFO L463 AbstractCegarLoop]: Interpolant automaton has 10 states. [2019-11-06 21:37:11,279 INFO L276 IsEmpty]: Start isEmpty. Operand 363 states and 476 transitions. [2019-11-06 21:37:11,283 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2019-11-06 21:37:11,283 INFO L402 BasicCegarLoop]: Found error trace [2019-11-06 21:37:11,283 INFO L410 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-06 21:37:11,284 INFO L410 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-06 21:37:11,284 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-06 21:37:11,284 INFO L82 PathProgramCache]: Analyzing trace with hash -587925414, now seen corresponding path program 1 times [2019-11-06 21:37:11,284 INFO L161 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-06 21:37:11,285 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [834167793] [2019-11-06 21:37:11,285 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-06 21:37:11,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:37:12,916 WARN L191 SmtUtils]: Spent 1.47 s on a formula simplification that was a NOOP. DAG size: 523 [2019-11-06 21:37:12,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:37:12,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:37:12,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:37:12,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:37:12,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:37:13,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:37:13,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:37:13,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:37:13,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:37:13,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:37:13,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:37:13,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:37:13,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:37:13,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:37:13,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:37:13,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:37:13,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:37:13,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:37:13,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:37:13,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:37:13,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:37:13,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:37:13,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:37:13,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:37:13,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:37:13,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:37:13,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:37:13,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:37:13,273 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2019-11-06 21:37:13,274 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [834167793] [2019-11-06 21:37:13,274 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-06 21:37:13,274 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2019-11-06 21:37:13,274 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [228700487] [2019-11-06 21:37:13,276 INFO L442 AbstractCegarLoop]: Interpolant automaton has 11 states [2019-11-06 21:37:13,277 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-06 21:37:13,277 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2019-11-06 21:37:13,277 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2019-11-06 21:37:13,278 INFO L87 Difference]: Start difference. First operand 363 states and 476 transitions. Second operand 11 states. [2019-11-06 21:37:17,585 WARN L191 SmtUtils]: Spent 1.39 s on a formula simplification that was a NOOP. DAG size: 526 [2019-11-06 21:37:27,727 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-06 21:37:27,727 INFO L93 Difference]: Finished difference Result 764 states and 1081 transitions. [2019-11-06 21:37:27,728 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2019-11-06 21:37:27,728 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 158 [2019-11-06 21:37:27,729 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-06 21:37:27,734 INFO L225 Difference]: With dead ends: 764 [2019-11-06 21:37:27,734 INFO L226 Difference]: Without dead ends: 633 [2019-11-06 21:37:27,736 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 70 GetRequests, 54 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 3.2s TimeCoverageRelationStatistics Valid=106, Invalid=200, Unknown=0, NotChecked=0, Total=306 [2019-11-06 21:37:27,738 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 633 states. [2019-11-06 21:37:27,872 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 633 to 365. [2019-11-06 21:37:27,872 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 365 states. [2019-11-06 21:37:27,875 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 365 states to 365 states and 478 transitions. [2019-11-06 21:37:27,875 INFO L78 Accepts]: Start accepts. Automaton has 365 states and 478 transitions. Word has length 158 [2019-11-06 21:37:27,876 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-06 21:37:27,876 INFO L462 AbstractCegarLoop]: Abstraction has 365 states and 478 transitions. [2019-11-06 21:37:27,876 INFO L463 AbstractCegarLoop]: Interpolant automaton has 11 states. [2019-11-06 21:37:27,876 INFO L276 IsEmpty]: Start isEmpty. Operand 365 states and 478 transitions. [2019-11-06 21:37:27,879 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 165 [2019-11-06 21:37:27,879 INFO L402 BasicCegarLoop]: Found error trace [2019-11-06 21:37:27,879 INFO L410 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 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] [2019-11-06 21:37:27,880 INFO L410 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-06 21:37:27,880 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-06 21:37:27,880 INFO L82 PathProgramCache]: Analyzing trace with hash -1434199194, now seen corresponding path program 1 times [2019-11-06 21:37:27,880 INFO L161 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-06 21:37:27,880 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [407081919] [2019-11-06 21:37:27,881 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-06 21:37:27,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:37:29,347 WARN L191 SmtUtils]: Spent 1.33 s on a formula simplification that was a NOOP. DAG size: 523 [2019-11-06 21:37:29,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:37:29,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:37:29,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:37:29,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:37:29,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:37:29,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:37:29,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:37:29,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:37:29,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:37:29,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:37:29,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:37:29,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:37:29,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:37:29,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:37:29,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:37:29,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:37:29,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:37:29,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:37:29,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:37:29,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:37:29,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:37:29,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:37:29,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:37:29,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:37:29,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:37:29,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:37:29,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:37:29,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:37:29,707 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2019-11-06 21:37:29,707 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [407081919] [2019-11-06 21:37:29,707 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-06 21:37:29,708 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2019-11-06 21:37:29,708 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1087009867] [2019-11-06 21:37:29,708 INFO L442 AbstractCegarLoop]: Interpolant automaton has 11 states [2019-11-06 21:37:29,709 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-06 21:37:29,709 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2019-11-06 21:37:29,709 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2019-11-06 21:37:29,709 INFO L87 Difference]: Start difference. First operand 365 states and 478 transitions. Second operand 11 states. [2019-11-06 21:37:33,578 WARN L191 SmtUtils]: Spent 1.35 s on a formula simplification that was a NOOP. DAG size: 526