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_spec8_product28.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-f4eb214f-m [2019-10-13 21:18:25,958 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-13 21:18:25,961 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-13 21:18:25,976 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-13 21:18:25,977 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-13 21:18:25,978 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-13 21:18:25,979 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-13 21:18:25,981 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-13 21:18:25,983 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-13 21:18:25,984 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-13 21:18:25,985 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-13 21:18:25,986 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-13 21:18:25,986 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-13 21:18:25,987 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-13 21:18:25,988 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-13 21:18:25,989 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-13 21:18:25,990 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-13 21:18:25,991 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-13 21:18:25,993 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-13 21:18:25,996 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-13 21:18:25,997 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-13 21:18:25,998 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-13 21:18:26,001 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-13 21:18:26,001 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-13 21:18:26,007 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-13 21:18:26,007 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-13 21:18:26,008 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-13 21:18:26,009 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-13 21:18:26,009 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-13 21:18:26,010 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-13 21:18:26,011 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-13 21:18:26,011 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-13 21:18:26,012 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-13 21:18:26,013 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-13 21:18:26,014 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-13 21:18:26,014 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-13 21:18:26,015 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-13 21:18:26,015 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-13 21:18:26,015 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-13 21:18:26,016 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-13 21:18:26,017 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-13 21:18:26,018 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 [2019-10-13 21:18:26,032 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-13 21:18:26,032 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-13 21:18:26,034 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-13 21:18:26,034 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-13 21:18:26,034 INFO L138 SettingsManager]: * Use SBE=true [2019-10-13 21:18:26,034 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-13 21:18:26,034 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-13 21:18:26,035 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-13 21:18:26,035 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-13 21:18:26,035 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-13 21:18:26,035 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-13 21:18:26,035 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-13 21:18:26,035 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-13 21:18:26,036 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-13 21:18:26,036 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-13 21:18:26,036 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-13 21:18:26,036 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-13 21:18:26,036 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-13 21:18:26,037 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-13 21:18:26,037 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-13 21:18:26,037 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-13 21:18:26,037 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-13 21:18:26,038 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-13 21:18:26,038 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-13 21:18:26,038 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-13 21:18:26,038 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-13 21:18:26,038 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-13 21:18:26,039 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-13 21:18:26,039 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 [2019-10-13 21:18:26,299 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-13 21:18:26,313 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-13 21:18:26,316 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-13 21:18:26,318 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-13 21:18:26,318 INFO L275 PluginConnector]: CDTParser initialized [2019-10-13 21:18:26,319 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/email_spec8_product28.cil.c [2019-10-13 21:18:26,393 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/902d9749e/003978cf137e47fba725f9cee693e325/FLAG7428245c0 [2019-10-13 21:18:26,988 INFO L306 CDTParser]: Found 1 translation units. [2019-10-13 21:18:26,992 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/email_spec8_product28.cil.c [2019-10-13 21:18:27,014 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/902d9749e/003978cf137e47fba725f9cee693e325/FLAG7428245c0 [2019-10-13 21:18:27,210 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/902d9749e/003978cf137e47fba725f9cee693e325 [2019-10-13 21:18:27,220 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-13 21:18:27,222 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-13 21:18:27,223 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-13 21:18:27,223 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-13 21:18:27,226 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-13 21:18:27,227 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 09:18:27" (1/1) ... [2019-10-13 21:18:27,230 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@60aa197e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:18:27, skipping insertion in model container [2019-10-13 21:18:27,230 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 09:18:27" (1/1) ... [2019-10-13 21:18:27,238 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-13 21:18:27,323 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-13 21:18:28,073 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-13 21:18:28,106 INFO L188 MainTranslator]: Completed pre-run [2019-10-13 21:18:28,279 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-13 21:18:28,393 INFO L192 MainTranslator]: Completed translation [2019-10-13 21:18:28,394 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:18:28 WrapperNode [2019-10-13 21:18:28,394 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-13 21:18:28,395 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-13 21:18:28,395 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-13 21:18:28,395 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-13 21:18:28,411 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:18:28" (1/1) ... [2019-10-13 21:18:28,411 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:18:28" (1/1) ... [2019-10-13 21:18:28,476 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:18:28" (1/1) ... [2019-10-13 21:18:28,477 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:18:28" (1/1) ... [2019-10-13 21:18:28,560 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:18:28" (1/1) ... [2019-10-13 21:18:28,596 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:18:28" (1/1) ... [2019-10-13 21:18:28,626 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:18:28" (1/1) ... [2019-10-13 21:18:28,655 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-13 21:18:28,656 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-13 21:18:28,656 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-13 21:18:28,657 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-13 21:18:28,658 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:18:28" (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 [2019-10-13 21:18:28,734 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-13 21:18:28,734 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-13 21:18:28,735 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-10-13 21:18:28,735 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-10-13 21:18:28,735 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-10-13 21:18:28,736 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-10-13 21:18:28,737 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-10-13 21:18:28,737 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-10-13 21:18:28,738 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__Keys [2019-10-13 21:18:28,738 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__Encrypt [2019-10-13 21:18:28,739 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__Sign [2019-10-13 21:18:28,739 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail [2019-10-13 21:18:28,739 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable__wrappee__Keys [2019-10-13 21:18:28,740 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2019-10-13 21:18:28,740 INFO L138 BoogieDeclarations]: Found implementation of procedure cloneEmail [2019-10-13 21:18:28,740 INFO L138 BoogieDeclarations]: Found implementation of procedure createEmail [2019-10-13 21:18:28,742 INFO L138 BoogieDeclarations]: Found implementation of procedure prompt [2019-10-13 21:18:28,743 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__EncryptAutoResponder_spec__1 [2019-10-13 21:18:28,743 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__EncryptAutoResponder_spec__2 [2019-10-13 21:18:28,743 INFO L138 BoogieDeclarations]: Found implementation of procedure initEmail [2019-10-13 21:18:28,743 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailId [2019-10-13 21:18:28,744 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailId [2019-10-13 21:18:28,744 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2019-10-13 21:18:28,744 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2019-10-13 21:18:28,744 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2019-10-13 21:18:28,745 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2019-10-13 21:18:28,745 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSubject [2019-10-13 21:18:28,745 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSubject [2019-10-13 21:18:28,745 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailBody [2019-10-13 21:18:28,745 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailBody [2019-10-13 21:18:28,745 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2019-10-13 21:18:28,746 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2019-10-13 21:18:28,746 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2019-10-13 21:18:28,746 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2019-10-13 21:18:28,746 INFO L138 BoogieDeclarations]: Found implementation of procedure isSigned [2019-10-13 21:18:28,747 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSigned [2019-10-13 21:18:28,747 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSignKey [2019-10-13 21:18:28,747 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSignKey [2019-10-13 21:18:28,747 INFO L138 BoogieDeclarations]: Found implementation of procedure isVerified [2019-10-13 21:18:28,747 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSignatureVerified [2019-10-13 21:18:28,748 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-10-13 21:18:28,748 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-10-13 21:18:28,748 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-10-13 21:18:28,748 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-10-13 21:18:28,748 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-10-13 21:18:28,749 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-10-13 21:18:28,749 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-10-13 21:18:28,749 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob__wrappee__Base [2019-10-13 21:18:28,749 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob [2019-10-13 21:18:28,749 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh__wrappee__Base [2019-10-13 21:18:28,749 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh [2019-10-13 21:18:28,750 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck__wrappee__Base [2019-10-13 21:18:28,750 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck [2019-10-13 21:18:28,750 INFO L138 BoogieDeclarations]: Found implementation of procedure bobToRjh [2019-10-13 21:18:28,750 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhToBob [2019-10-13 21:18:28,750 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-10-13 21:18:28,750 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-13 21:18:28,751 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAdd [2019-10-13 21:18:28,751 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAdd [2019-10-13 21:18:28,751 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAddChuck [2019-10-13 21:18:28,751 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAddChuck [2019-10-13 21:18:28,751 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2019-10-13 21:18:28,751 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAddRjh [2019-10-13 21:18:28,752 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhDeletePrivateKey [2019-10-13 21:18:28,752 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyChange [2019-10-13 21:18:28,752 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyChange [2019-10-13 21:18:28,752 INFO L138 BoogieDeclarations]: Found implementation of procedure mail [2019-10-13 21:18:28,753 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__Keys [2019-10-13 21:18:28,753 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__Encrypt [2019-10-13 21:18:28,753 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2019-10-13 21:18:28,753 INFO L138 BoogieDeclarations]: Found implementation of procedure deliver [2019-10-13 21:18:28,753 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Sign [2019-10-13 21:18:28,754 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Verify [2019-10-13 21:18:28,754 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming [2019-10-13 21:18:28,755 INFO L138 BoogieDeclarations]: Found implementation of procedure createClient [2019-10-13 21:18:28,755 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2019-10-13 21:18:28,755 INFO L138 BoogieDeclarations]: Found implementation of procedure queue [2019-10-13 21:18:28,755 INFO L138 BoogieDeclarations]: Found implementation of procedure is_queue_empty [2019-10-13 21:18:28,755 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_client [2019-10-13 21:18:28,756 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_email [2019-10-13 21:18:28,756 INFO L138 BoogieDeclarations]: Found implementation of procedure isKeyPairValid [2019-10-13 21:18:28,757 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2019-10-13 21:18:28,757 INFO L138 BoogieDeclarations]: Found implementation of procedure sign [2019-10-13 21:18:28,757 INFO L138 BoogieDeclarations]: Found implementation of procedure verify [2019-10-13 21:18:28,757 INFO L138 BoogieDeclarations]: Found implementation of procedure initClient [2019-10-13 21:18:28,758 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientName [2019-10-13 21:18:28,758 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientName [2019-10-13 21:18:28,759 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientOutbuffer [2019-10-13 21:18:28,759 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientOutbuffer [2019-10-13 21:18:28,759 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookSize [2019-10-13 21:18:28,760 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookSize [2019-10-13 21:18:28,760 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientAddressBookEntry [2019-10-13 21:18:28,760 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAlias [2019-10-13 21:18:28,760 INFO L138 BoogieDeclarations]: Found implementation of procedure findClientAddressBookAlias [2019-10-13 21:18:28,760 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAlias [2019-10-13 21:18:28,760 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAddress [2019-10-13 21:18:28,761 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAddress [2019-10-13 21:18:28,761 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAutoResponse [2019-10-13 21:18:28,761 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAutoResponse [2019-10-13 21:18:28,761 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientPrivateKey [2019-10-13 21:18:28,761 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2019-10-13 21:18:28,761 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringSize [2019-10-13 21:18:28,762 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringSize [2019-10-13 21:18:28,762 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2019-10-13 21:18:28,762 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringUser [2019-10-13 21:18:28,762 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2019-10-13 21:18:28,762 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringPublicKey [2019-10-13 21:18:28,762 INFO L138 BoogieDeclarations]: Found implementation of procedure findPublicKey [2019-10-13 21:18:28,763 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2019-10-13 21:18:28,763 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientForwardReceiver [2019-10-13 21:18:28,763 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientForwardReceiver [2019-10-13 21:18:28,763 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientId [2019-10-13 21:18:28,763 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2019-10-13 21:18:28,763 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-13 21:18:28,764 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-13 21:18:28,764 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-10-13 21:18:28,764 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-10-13 21:18:28,764 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-10-13 21:18:28,764 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-10-13 21:18:28,765 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAdd [2019-10-13 21:18:28,765 INFO L130 BoogieDeclarations]: Found specification of procedure rjhDeletePrivateKey [2019-10-13 21:18:28,765 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAdd [2019-10-13 21:18:28,765 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAddRjh [2019-10-13 21:18:28,765 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyChange [2019-10-13 21:18:28,767 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2019-10-13 21:18:28,767 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyChange [2019-10-13 21:18:28,767 INFO L130 BoogieDeclarations]: Found specification of procedure bobToRjh [2019-10-13 21:18:28,767 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-10-13 21:18:28,767 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-10-13 21:18:28,767 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailId [2019-10-13 21:18:28,768 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2019-10-13 21:18:28,768 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2019-10-13 21:18:28,768 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2019-10-13 21:18:28,768 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2019-10-13 21:18:28,768 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2019-10-13 21:18:28,769 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2019-10-13 21:18:28,769 INFO L130 BoogieDeclarations]: Found specification of procedure isSigned [2019-10-13 21:18:28,772 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSignKey [2019-10-13 21:18:28,773 INFO L130 BoogieDeclarations]: Found specification of procedure isVerified [2019-10-13 21:18:28,773 INFO L130 BoogieDeclarations]: Found specification of procedure printMail [2019-10-13 21:18:28,773 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2019-10-13 21:18:28,774 INFO L130 BoogieDeclarations]: Found specification of procedure createEmail [2019-10-13 21:18:28,774 INFO L130 BoogieDeclarations]: Found specification of procedure cloneEmail [2019-10-13 21:18:28,774 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__Keys [2019-10-13 21:18:28,780 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-13 21:18:28,781 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__Encrypt [2019-10-13 21:18:28,781 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__Sign [2019-10-13 21:18:28,781 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable__wrappee__Keys [2019-10-13 21:18:28,783 INFO L130 BoogieDeclarations]: Found specification of procedure prompt [2019-10-13 21:18:28,783 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-10-13 21:18:28,783 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2019-10-13 21:18:28,783 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__EncryptAutoResponder_spec__1 [2019-10-13 21:18:28,783 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__EncryptAutoResponder_spec__2 [2019-10-13 21:18:28,783 INFO L130 BoogieDeclarations]: Found specification of procedure initEmail [2019-10-13 21:18:28,783 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailId [2019-10-13 21:18:28,784 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSubject [2019-10-13 21:18:28,784 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSubject [2019-10-13 21:18:28,784 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailBody [2019-10-13 21:18:28,784 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailBody [2019-10-13 21:18:28,784 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2019-10-13 21:18:28,784 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2019-10-13 21:18:28,784 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSigned [2019-10-13 21:18:28,785 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSignKey [2019-10-13 21:18:28,785 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSignatureVerified [2019-10-13 21:18:28,785 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-10-13 21:18:28,785 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-10-13 21:18:28,785 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-13 21:18:28,785 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-10-13 21:18:28,785 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-13 21:18:28,786 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-13 21:18:28,786 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-13 21:18:28,786 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-13 21:18:28,786 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-10-13 21:18:28,786 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-13 21:18:28,786 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-10-13 21:18:28,786 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-10-13 21:18:28,786 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-13 21:18:28,787 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-10-13 21:18:28,787 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-10-13 21:18:28,787 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-10-13 21:18:28,787 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2019-10-13 21:18:28,787 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2019-10-13 21:18:28,787 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringUser [2019-10-13 21:18:28,787 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2019-10-13 21:18:28,787 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringPublicKey [2019-10-13 21:18:28,788 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2019-10-13 21:18:28,788 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2019-10-13 21:18:28,788 INFO L130 BoogieDeclarations]: Found specification of procedure is_queue_empty [2019-10-13 21:18:28,788 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_client [2019-10-13 21:18:28,788 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_email [2019-10-13 21:18:28,788 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2019-10-13 21:18:28,788 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2019-10-13 21:18:28,788 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2019-10-13 21:18:28,789 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob [2019-10-13 21:18:28,789 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh [2019-10-13 21:18:28,789 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck [2019-10-13 21:18:28,789 INFO L130 BoogieDeclarations]: Found specification of procedure rjhToBob [2019-10-13 21:18:28,789 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-10-13 21:18:28,789 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-13 21:18:28,789 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAddChuck [2019-10-13 21:18:28,789 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAddChuck [2019-10-13 21:18:28,790 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob__wrappee__Base [2019-10-13 21:18:28,790 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh__wrappee__Base [2019-10-13 21:18:28,790 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck__wrappee__Base [2019-10-13 21:18:28,790 INFO L130 BoogieDeclarations]: Found specification of procedure initClient [2019-10-13 21:18:28,790 INFO L130 BoogieDeclarations]: Found specification of procedure getClientPrivateKey [2019-10-13 21:18:28,790 INFO L130 BoogieDeclarations]: Found specification of procedure getClientId [2019-10-13 21:18:28,790 INFO L130 BoogieDeclarations]: Found specification of procedure findPublicKey [2019-10-13 21:18:28,790 INFO L130 BoogieDeclarations]: Found specification of procedure queue [2019-10-13 21:18:28,791 INFO L130 BoogieDeclarations]: Found specification of procedure mail [2019-10-13 21:18:28,791 INFO L130 BoogieDeclarations]: Found specification of procedure deliver [2019-10-13 21:18:28,791 INFO L130 BoogieDeclarations]: Found specification of procedure incoming [2019-10-13 21:18:28,791 INFO L130 BoogieDeclarations]: Found specification of procedure createClient [2019-10-13 21:18:28,791 INFO L130 BoogieDeclarations]: Found specification of procedure isKeyPairValid [2019-10-13 21:18:28,791 INFO L130 BoogieDeclarations]: Found specification of procedure sign [2019-10-13 21:18:28,791 INFO L130 BoogieDeclarations]: Found specification of procedure verify [2019-10-13 21:18:28,791 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__Keys [2019-10-13 21:18:28,792 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__Encrypt [2019-10-13 21:18:28,792 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Sign [2019-10-13 21:18:28,792 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Verify [2019-10-13 21:18:28,792 INFO L130 BoogieDeclarations]: Found specification of procedure getClientName [2019-10-13 21:18:28,792 INFO L130 BoogieDeclarations]: Found specification of procedure setClientName [2019-10-13 21:18:28,792 INFO L130 BoogieDeclarations]: Found specification of procedure getClientOutbuffer [2019-10-13 21:18:28,792 INFO L130 BoogieDeclarations]: Found specification of procedure setClientOutbuffer [2019-10-13 21:18:28,793 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookSize [2019-10-13 21:18:28,793 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookSize [2019-10-13 21:18:28,793 INFO L130 BoogieDeclarations]: Found specification of procedure createClientAddressBookEntry [2019-10-13 21:18:28,793 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAlias [2019-10-13 21:18:28,793 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAlias [2019-10-13 21:18:28,793 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAddress [2019-10-13 21:18:28,793 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAddress [2019-10-13 21:18:28,793 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAutoResponse [2019-10-13 21:18:28,794 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAutoResponse [2019-10-13 21:18:28,794 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringSize [2019-10-13 21:18:28,794 INFO L130 BoogieDeclarations]: Found specification of procedure getClientForwardReceiver [2019-10-13 21:18:28,794 INFO L130 BoogieDeclarations]: Found specification of procedure setClientForwardReceiver [2019-10-13 21:18:28,794 INFO L130 BoogieDeclarations]: Found specification of procedure findClientAddressBookAlias [2019-10-13 21:18:28,794 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringSize [2019-10-13 21:18:28,794 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-13 21:18:28,794 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-13 21:18:28,794 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-13 21:18:31,054 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-13 21:18:31,055 INFO L284 CfgBuilder]: Removed 4 assume(true) statements. [2019-10-13 21:18:31,057 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 09:18:31 BoogieIcfgContainer [2019-10-13 21:18:31,057 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-13 21:18:31,058 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-13 21:18:31,058 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-13 21:18:31,062 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-13 21:18:31,062 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 09:18:27" (1/3) ... [2019-10-13 21:18:31,064 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7afa1225 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 09:18:31, skipping insertion in model container [2019-10-13 21:18:31,064 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:18:28" (2/3) ... [2019-10-13 21:18:31,064 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7afa1225 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 09:18:31, skipping insertion in model container [2019-10-13 21:18:31,064 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 09:18:31" (3/3) ... [2019-10-13 21:18:31,066 INFO L109 eAbstractionObserver]: Analyzing ICFG email_spec8_product28.cil.c [2019-10-13 21:18:31,076 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-13 21:18:31,085 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-13 21:18:31,097 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-13 21:18:31,138 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-13 21:18:31,139 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-13 21:18:31,139 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-13 21:18:31,139 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-13 21:18:31,139 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-13 21:18:31,139 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-13 21:18:31,140 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-13 21:18:31,144 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-13 21:18:31,182 INFO L276 IsEmpty]: Start isEmpty. Operand 513 states. [2019-10-13 21:18:31,206 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2019-10-13 21:18:31,206 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:18:31,207 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] [2019-10-13 21:18:31,212 INFO L410 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:18:31,218 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:18:31,218 INFO L82 PathProgramCache]: Analyzing trace with hash -1787555890, now seen corresponding path program 1 times [2019-10-13 21:18:31,228 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:18:31,228 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1516008882] [2019-10-13 21:18:31,229 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:18:31,229 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:18:31,229 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:18:31,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:18:31,904 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2019-10-13 21:18:31,905 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1516008882] [2019-10-13 21:18:31,906 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 21:18:31,906 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-10-13 21:18:31,906 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1271491326] [2019-10-13 21:18:31,913 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-13 21:18:31,915 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:18:31,930 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-13 21:18:31,931 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-13 21:18:31,933 INFO L87 Difference]: Start difference. First operand 513 states. Second operand 2 states. [2019-10-13 21:18:32,013 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:18:32,014 INFO L93 Difference]: Finished difference Result 723 states and 956 transitions. [2019-10-13 21:18:32,014 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-13 21:18:32,015 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 158 [2019-10-13 21:18:32,016 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:18:32,038 INFO L225 Difference]: With dead ends: 723 [2019-10-13 21:18:32,038 INFO L226 Difference]: Without dead ends: 462 [2019-10-13 21:18:32,045 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 [2019-10-13 21:18:32,065 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 462 states. [2019-10-13 21:18:32,147 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 462 to 462. [2019-10-13 21:18:32,149 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 462 states. [2019-10-13 21:18:32,160 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 462 states to 462 states and 615 transitions. [2019-10-13 21:18:32,163 INFO L78 Accepts]: Start accepts. Automaton has 462 states and 615 transitions. Word has length 158 [2019-10-13 21:18:32,166 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:18:32,167 INFO L462 AbstractCegarLoop]: Abstraction has 462 states and 615 transitions. [2019-10-13 21:18:32,167 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-13 21:18:32,167 INFO L276 IsEmpty]: Start isEmpty. Operand 462 states and 615 transitions. [2019-10-13 21:18:32,178 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2019-10-13 21:18:32,178 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:18:32,178 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] [2019-10-13 21:18:32,179 INFO L410 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:18:32,179 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:18:32,179 INFO L82 PathProgramCache]: Analyzing trace with hash 1218576711, now seen corresponding path program 1 times [2019-10-13 21:18:32,179 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:18:32,180 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1661076961] [2019-10-13 21:18:32,180 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:18:32,180 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:18:32,180 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:18:32,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:18:32,400 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2019-10-13 21:18:32,401 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1661076961] [2019-10-13 21:18:32,401 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 21:18:32,401 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-13 21:18:32,402 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [686313153] [2019-10-13 21:18:32,409 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-13 21:18:32,409 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:18:32,409 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-13 21:18:32,410 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 21:18:32,410 INFO L87 Difference]: Start difference. First operand 462 states and 615 transitions. Second operand 3 states. [2019-10-13 21:18:32,484 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:18:32,484 INFO L93 Difference]: Finished difference Result 706 states and 924 transitions. [2019-10-13 21:18:32,527 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-13 21:18:32,528 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 159 [2019-10-13 21:18:32,528 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:18:32,534 INFO L225 Difference]: With dead ends: 706 [2019-10-13 21:18:32,534 INFO L226 Difference]: Without dead ends: 465 [2019-10-13 21:18:32,537 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 [2019-10-13 21:18:32,539 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 465 states. [2019-10-13 21:18:32,578 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 465 to 464. [2019-10-13 21:18:32,579 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 464 states. [2019-10-13 21:18:32,584 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 464 states to 464 states and 617 transitions. [2019-10-13 21:18:32,584 INFO L78 Accepts]: Start accepts. Automaton has 464 states and 617 transitions. Word has length 159 [2019-10-13 21:18:32,585 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:18:32,585 INFO L462 AbstractCegarLoop]: Abstraction has 464 states and 617 transitions. [2019-10-13 21:18:32,586 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-13 21:18:32,586 INFO L276 IsEmpty]: Start isEmpty. Operand 464 states and 617 transitions. [2019-10-13 21:18:32,590 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2019-10-13 21:18:32,590 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:18:32,590 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] [2019-10-13 21:18:32,591 INFO L410 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:18:32,591 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:18:32,591 INFO L82 PathProgramCache]: Analyzing trace with hash -1138420005, now seen corresponding path program 1 times [2019-10-13 21:18:32,591 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:18:32,591 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1742093674] [2019-10-13 21:18:32,592 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:18:32,592 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:18:32,592 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:18:32,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:18:32,763 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2019-10-13 21:18:32,764 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1742093674] [2019-10-13 21:18:32,764 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 21:18:32,764 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-13 21:18:32,764 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1441422334] [2019-10-13 21:18:32,765 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-13 21:18:32,766 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:18:32,766 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-13 21:18:32,766 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 21:18:32,766 INFO L87 Difference]: Start difference. First operand 464 states and 617 transitions. Second operand 3 states. [2019-10-13 21:18:32,804 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:18:32,804 INFO L93 Difference]: Finished difference Result 902 states and 1229 transitions. [2019-10-13 21:18:32,805 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-13 21:18:32,805 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 165 [2019-10-13 21:18:32,806 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:18:32,810 INFO L225 Difference]: With dead ends: 902 [2019-10-13 21:18:32,810 INFO L226 Difference]: Without dead ends: 503 [2019-10-13 21:18:32,812 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 [2019-10-13 21:18:32,814 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 503 states. [2019-10-13 21:18:32,831 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 503 to 502. [2019-10-13 21:18:32,832 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 502 states. [2019-10-13 21:18:32,835 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 502 states to 502 states and 683 transitions. [2019-10-13 21:18:32,836 INFO L78 Accepts]: Start accepts. Automaton has 502 states and 683 transitions. Word has length 165 [2019-10-13 21:18:32,836 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:18:32,836 INFO L462 AbstractCegarLoop]: Abstraction has 502 states and 683 transitions. [2019-10-13 21:18:32,836 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-13 21:18:32,836 INFO L276 IsEmpty]: Start isEmpty. Operand 502 states and 683 transitions. [2019-10-13 21:18:32,840 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 167 [2019-10-13 21:18:32,840 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:18:32,840 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] [2019-10-13 21:18:32,840 INFO L410 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:18:32,841 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:18:32,841 INFO L82 PathProgramCache]: Analyzing trace with hash 154755204, now seen corresponding path program 1 times [2019-10-13 21:18:32,841 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:18:32,841 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1949848676] [2019-10-13 21:18:32,841 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:18:32,842 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:18:32,842 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:18:32,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:18:34,281 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2019-10-13 21:18:34,281 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1949848676] [2019-10-13 21:18:34,282 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 21:18:34,282 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [38] imperfect sequences [] total 38 [2019-10-13 21:18:34,282 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [200053213] [2019-10-13 21:18:34,283 INFO L442 AbstractCegarLoop]: Interpolant automaton has 38 states [2019-10-13 21:18:34,283 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:18:34,283 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 38 interpolants. [2019-10-13 21:18:34,284 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=79, Invalid=1327, Unknown=0, NotChecked=0, Total=1406 [2019-10-13 21:18:34,284 INFO L87 Difference]: Start difference. First operand 502 states and 683 transitions. Second operand 38 states. [2019-10-13 21:18:48,693 WARN L191 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 40 DAG size of output: 36 [2019-10-13 21:19:04,202 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:19:04,203 INFO L93 Difference]: Finished difference Result 4791 states and 6684 transitions. [2019-10-13 21:19:04,203 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 173 states. [2019-10-13 21:19:04,203 INFO L78 Accepts]: Start accepts. Automaton has 38 states. Word has length 166 [2019-10-13 21:19:04,204 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:19:04,244 INFO L225 Difference]: With dead ends: 4791 [2019-10-13 21:19:04,244 INFO L226 Difference]: Without dead ends: 4318 [2019-10-13 21:19:04,263 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 242 GetRequests, 35 SyntacticMatches, 1 SemanticMatches, 206 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14364 ImplicationChecksByTransitivity, 8.6s TimeCoverageRelationStatistics Valid=2294, Invalid=40762, Unknown=0, NotChecked=0, Total=43056 [2019-10-13 21:19:04,270 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4318 states. [2019-10-13 21:19:04,494 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4318 to 4192. [2019-10-13 21:19:04,494 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4192 states. [2019-10-13 21:19:04,512 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4192 states to 4192 states and 5855 transitions. [2019-10-13 21:19:04,513 INFO L78 Accepts]: Start accepts. Automaton has 4192 states and 5855 transitions. Word has length 166 [2019-10-13 21:19:04,514 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:19:04,514 INFO L462 AbstractCegarLoop]: Abstraction has 4192 states and 5855 transitions. [2019-10-13 21:19:04,514 INFO L463 AbstractCegarLoop]: Interpolant automaton has 38 states. [2019-10-13 21:19:04,514 INFO L276 IsEmpty]: Start isEmpty. Operand 4192 states and 5855 transitions. [2019-10-13 21:19:04,526 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 169 [2019-10-13 21:19:04,526 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:19:04,526 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 21:19:04,527 INFO L410 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:19:04,527 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:19:04,527 INFO L82 PathProgramCache]: Analyzing trace with hash -925843554, now seen corresponding path program 1 times [2019-10-13 21:19:04,527 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:19:04,528 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [750077189] [2019-10-13 21:19:04,528 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:19:04,528 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:19:04,528 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:19:04,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:19:04,772 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2019-10-13 21:19:04,772 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [750077189] [2019-10-13 21:19:04,773 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 21:19:04,773 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2019-10-13 21:19:04,773 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1625427179] [2019-10-13 21:19:04,774 INFO L442 AbstractCegarLoop]: Interpolant automaton has 11 states [2019-10-13 21:19:04,774 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:19:04,774 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2019-10-13 21:19:04,774 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110 [2019-10-13 21:19:04,774 INFO L87 Difference]: Start difference. First operand 4192 states and 5855 transitions. Second operand 11 states.