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_spec6_product29.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-13a467a-m [2019-10-15 01:16:13,165 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-15 01:16:13,168 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-15 01:16:13,188 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-15 01:16:13,188 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-15 01:16:13,191 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-15 01:16:13,193 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-15 01:16:13,206 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-15 01:16:13,207 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-15 01:16:13,210 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-15 01:16:13,211 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-15 01:16:13,213 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-15 01:16:13,213 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-15 01:16:13,217 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-15 01:16:13,220 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-15 01:16:13,222 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-15 01:16:13,224 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-15 01:16:13,227 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-15 01:16:13,229 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-15 01:16:13,233 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-15 01:16:13,235 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-15 01:16:13,236 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-15 01:16:13,237 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-15 01:16:13,238 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-15 01:16:13,240 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-15 01:16:13,240 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-15 01:16:13,240 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-15 01:16:13,241 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-15 01:16:13,242 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-15 01:16:13,243 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-15 01:16:13,243 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-15 01:16:13,244 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-15 01:16:13,245 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-15 01:16:13,245 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-15 01:16:13,246 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-15 01:16:13,246 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-15 01:16:13,247 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-15 01:16:13,247 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-15 01:16:13,248 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-15 01:16:13,249 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-15 01:16:13,249 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-15 01:16:13,250 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2019-10-15 01:16:13,264 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-15 01:16:13,264 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-15 01:16:13,266 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-15 01:16:13,266 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-15 01:16:13,266 INFO L138 SettingsManager]: * Use SBE=true [2019-10-15 01:16:13,266 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-15 01:16:13,267 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-15 01:16:13,267 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-15 01:16:13,267 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-15 01:16:13,267 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-15 01:16:13,267 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-15 01:16:13,267 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-15 01:16:13,268 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-15 01:16:13,268 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-15 01:16:13,268 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-15 01:16:13,268 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-15 01:16:13,268 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-15 01:16:13,269 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-15 01:16:13,269 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-15 01:16:13,269 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-15 01:16:13,269 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-15 01:16:13,269 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-15 01:16:13,270 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-15 01:16:13,270 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-15 01:16:13,270 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-15 01:16:13,270 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-15 01:16:13,271 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-15 01:16:13,271 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-15 01:16:13,271 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2: Abstract domain -> IntervalDomain Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> TAIPAN Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Abstract interpretation Mode -> USE_PREDICATES [2019-10-15 01:16:13,595 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-15 01:16:13,614 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-15 01:16:13,618 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-15 01:16:13,619 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-15 01:16:13,619 INFO L275 PluginConnector]: CDTParser initialized [2019-10-15 01:16:13,620 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/email_spec6_product29.cil.c [2019-10-15 01:16:13,686 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e175bc798/5c0ccab4881841a2b8630b2b04c085d1/FLAG54a37cd35 [2019-10-15 01:16:14,293 INFO L306 CDTParser]: Found 1 translation units. [2019-10-15 01:16:14,294 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/email_spec6_product29.cil.c [2019-10-15 01:16:14,316 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e175bc798/5c0ccab4881841a2b8630b2b04c085d1/FLAG54a37cd35 [2019-10-15 01:16:14,523 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e175bc798/5c0ccab4881841a2b8630b2b04c085d1 [2019-10-15 01:16:14,533 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-15 01:16:14,535 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-15 01:16:14,536 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-15 01:16:14,536 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-15 01:16:14,539 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-15 01:16:14,540 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 01:16:14" (1/1) ... [2019-10-15 01:16:14,542 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@29914bb1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:16:14, skipping insertion in model container [2019-10-15 01:16:14,542 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 01:16:14" (1/1) ... [2019-10-15 01:16:14,548 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-15 01:16:14,620 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-15 01:16:15,443 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-15 01:16:15,461 INFO L188 MainTranslator]: Completed pre-run [2019-10-15 01:16:15,621 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-15 01:16:15,744 INFO L192 MainTranslator]: Completed translation [2019-10-15 01:16:15,745 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:16:15 WrapperNode [2019-10-15 01:16:15,745 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-15 01:16:15,746 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-15 01:16:15,746 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-15 01:16:15,746 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-15 01:16:15,762 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:16:15" (1/1) ... [2019-10-15 01:16:15,762 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:16:15" (1/1) ... [2019-10-15 01:16:15,823 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:16:15" (1/1) ... [2019-10-15 01:16:15,828 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:16:15" (1/1) ... [2019-10-15 01:16:15,900 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:16:15" (1/1) ... [2019-10-15 01:16:15,921 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:16:15" (1/1) ... [2019-10-15 01:16:15,934 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:16:15" (1/1) ... [2019-10-15 01:16:15,954 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-15 01:16:15,955 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-15 01:16:15,955 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-15 01:16:15,955 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-15 01:16:15,956 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:16:15" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-15 01:16:16,044 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-15 01:16:16,045 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-15 01:16:16,045 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-10-15 01:16:16,046 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob__wrappee__Base [2019-10-15 01:16:16,046 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob [2019-10-15 01:16:16,046 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh__wrappee__Base [2019-10-15 01:16:16,046 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh [2019-10-15 01:16:16,047 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck__wrappee__Base [2019-10-15 01:16:16,047 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck [2019-10-15 01:16:16,047 INFO L138 BoogieDeclarations]: Found implementation of procedure bobToRjh [2019-10-15 01:16:16,047 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhToBob [2019-10-15 01:16:16,048 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-10-15 01:16:16,048 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-15 01:16:16,048 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAdd [2019-10-15 01:16:16,048 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAdd [2019-10-15 01:16:16,049 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAddChuck [2019-10-15 01:16:16,049 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAddChuck [2019-10-15 01:16:16,049 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2019-10-15 01:16:16,049 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAddRjh [2019-10-15 01:16:16,050 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhDeletePrivateKey [2019-10-15 01:16:16,050 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyChange [2019-10-15 01:16:16,050 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyChange [2019-10-15 01:16:16,051 INFO L138 BoogieDeclarations]: Found implementation of procedure bobSetAddressBook [2019-10-15 01:16:16,051 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-10-15 01:16:16,051 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-10-15 01:16:16,051 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-10-15 01:16:16,051 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-10-15 01:16:16,052 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-10-15 01:16:16,052 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-10-15 01:16:16,052 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__EncryptDecrypt_spec__1 [2019-10-15 01:16:16,052 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__EncryptDecrypt_spec__2 [2019-10-15 01:16:16,052 INFO L138 BoogieDeclarations]: Found implementation of procedure initClient [2019-10-15 01:16:16,052 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientName [2019-10-15 01:16:16,053 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientName [2019-10-15 01:16:16,053 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientOutbuffer [2019-10-15 01:16:16,053 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientOutbuffer [2019-10-15 01:16:16,053 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookSize [2019-10-15 01:16:16,053 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookSize [2019-10-15 01:16:16,053 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientAddressBookEntry [2019-10-15 01:16:16,054 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAlias [2019-10-15 01:16:16,054 INFO L138 BoogieDeclarations]: Found implementation of procedure findClientAddressBookAlias [2019-10-15 01:16:16,054 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAlias [2019-10-15 01:16:16,054 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAddress [2019-10-15 01:16:16,054 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAddress [2019-10-15 01:16:16,054 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAutoResponse [2019-10-15 01:16:16,054 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAutoResponse [2019-10-15 01:16:16,055 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientPrivateKey [2019-10-15 01:16:16,055 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2019-10-15 01:16:16,055 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringSize [2019-10-15 01:16:16,055 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringSize [2019-10-15 01:16:16,055 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2019-10-15 01:16:16,055 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringUser [2019-10-15 01:16:16,056 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2019-10-15 01:16:16,056 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringPublicKey [2019-10-15 01:16:16,056 INFO L138 BoogieDeclarations]: Found implementation of procedure findPublicKey [2019-10-15 01:16:16,056 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2019-10-15 01:16:16,056 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientForwardReceiver [2019-10-15 01:16:16,056 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientForwardReceiver [2019-10-15 01:16:16,057 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientId [2019-10-15 01:16:16,057 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2019-10-15 01:16:16,057 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-10-15 01:16:16,057 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-10-15 01:16:16,057 INFO L138 BoogieDeclarations]: Found implementation of procedure prompt [2019-10-15 01:16:16,057 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-10-15 01:16:16,058 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-10-15 01:16:16,058 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-10-15 01:16:16,058 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-10-15 01:16:16,058 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__Keys [2019-10-15 01:16:16,058 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__AddressBook [2019-10-15 01:16:16,058 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__Sign [2019-10-15 01:16:16,059 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail [2019-10-15 01:16:16,059 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable__wrappee__Keys [2019-10-15 01:16:16,059 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2019-10-15 01:16:16,059 INFO L138 BoogieDeclarations]: Found implementation of procedure cloneEmail [2019-10-15 01:16:16,059 INFO L138 BoogieDeclarations]: Found implementation of procedure createEmail [2019-10-15 01:16:16,059 INFO L138 BoogieDeclarations]: Found implementation of procedure initEmail [2019-10-15 01:16:16,060 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailId [2019-10-15 01:16:16,060 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailId [2019-10-15 01:16:16,060 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2019-10-15 01:16:16,060 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2019-10-15 01:16:16,060 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2019-10-15 01:16:16,060 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2019-10-15 01:16:16,061 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSubject [2019-10-15 01:16:16,061 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSubject [2019-10-15 01:16:16,061 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailBody [2019-10-15 01:16:16,061 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailBody [2019-10-15 01:16:16,061 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2019-10-15 01:16:16,061 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2019-10-15 01:16:16,062 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2019-10-15 01:16:16,062 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2019-10-15 01:16:16,062 INFO L138 BoogieDeclarations]: Found implementation of procedure isSigned [2019-10-15 01:16:16,062 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSigned [2019-10-15 01:16:16,062 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSignKey [2019-10-15 01:16:16,062 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSignKey [2019-10-15 01:16:16,063 INFO L138 BoogieDeclarations]: Found implementation of procedure isVerified [2019-10-15 01:16:16,063 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSignatureVerified [2019-10-15 01:16:16,063 INFO L138 BoogieDeclarations]: Found implementation of procedure mail [2019-10-15 01:16:16,063 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__Keys [2019-10-15 01:16:16,063 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__Encrypt [2019-10-15 01:16:16,063 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__AddressBook [2019-10-15 01:16:16,063 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2019-10-15 01:16:16,064 INFO L138 BoogieDeclarations]: Found implementation of procedure deliver [2019-10-15 01:16:16,064 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Sign [2019-10-15 01:16:16,064 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Verify [2019-10-15 01:16:16,064 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming [2019-10-15 01:16:16,064 INFO L138 BoogieDeclarations]: Found implementation of procedure createClient [2019-10-15 01:16:16,064 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2019-10-15 01:16:16,065 INFO L138 BoogieDeclarations]: Found implementation of procedure queue [2019-10-15 01:16:16,065 INFO L138 BoogieDeclarations]: Found implementation of procedure is_queue_empty [2019-10-15 01:16:16,065 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_client [2019-10-15 01:16:16,065 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_email [2019-10-15 01:16:16,065 INFO L138 BoogieDeclarations]: Found implementation of procedure isKeyPairValid [2019-10-15 01:16:16,065 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2019-10-15 01:16:16,066 INFO L138 BoogieDeclarations]: Found implementation of procedure sendToAddressBook [2019-10-15 01:16:16,066 INFO L138 BoogieDeclarations]: Found implementation of procedure sign [2019-10-15 01:16:16,066 INFO L138 BoogieDeclarations]: Found implementation of procedure verify [2019-10-15 01:16:16,066 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-15 01:16:16,066 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-15 01:16:16,067 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-10-15 01:16:16,067 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2019-10-15 01:16:16,067 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookSize [2019-10-15 01:16:16,067 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAlias [2019-10-15 01:16:16,067 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAddress [2019-10-15 01:16:16,067 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2019-10-15 01:16:16,068 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2019-10-15 01:16:16,068 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringUser [2019-10-15 01:16:16,068 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2019-10-15 01:16:16,068 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringPublicKey [2019-10-15 01:16:16,068 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2019-10-15 01:16:16,068 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2019-10-15 01:16:16,068 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-10-15 01:16:16,069 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-10-15 01:16:16,069 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-10-15 01:16:16,069 INFO L130 BoogieDeclarations]: Found specification of procedure is_queue_empty [2019-10-15 01:16:16,069 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_client [2019-10-15 01:16:16,069 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_email [2019-10-15 01:16:16,070 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2019-10-15 01:16:16,070 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2019-10-15 01:16:16,070 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2019-10-15 01:16:16,070 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob [2019-10-15 01:16:16,070 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh [2019-10-15 01:16:16,070 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck [2019-10-15 01:16:16,071 INFO L130 BoogieDeclarations]: Found specification of procedure bobToRjh [2019-10-15 01:16:16,071 INFO L130 BoogieDeclarations]: Found specification of procedure rjhToBob [2019-10-15 01:16:16,071 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-10-15 01:16:16,071 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-10-15 01:16:16,071 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-15 01:16:16,071 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAdd [2019-10-15 01:16:16,071 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAddChuck [2019-10-15 01:16:16,072 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAdd [2019-10-15 01:16:16,072 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAddChuck [2019-10-15 01:16:16,072 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2019-10-15 01:16:16,072 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyChange [2019-10-15 01:16:16,072 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyChange [2019-10-15 01:16:16,072 INFO L130 BoogieDeclarations]: Found specification of procedure rjhDeletePrivateKey [2019-10-15 01:16:16,073 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAddRjh [2019-10-15 01:16:16,073 INFO L130 BoogieDeclarations]: Found specification of procedure bobSetAddressBook [2019-10-15 01:16:16,073 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob__wrappee__Base [2019-10-15 01:16:16,073 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh__wrappee__Base [2019-10-15 01:16:16,073 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck__wrappee__Base [2019-10-15 01:16:16,073 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-15 01:16:16,073 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-10-15 01:16:16,074 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-10-15 01:16:16,074 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-15 01:16:16,074 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-10-15 01:16:16,074 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-15 01:16:16,074 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-15 01:16:16,074 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-15 01:16:16,075 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-15 01:16:16,075 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-10-15 01:16:16,075 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-15 01:16:16,075 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-10-15 01:16:16,075 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-10-15 01:16:16,075 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-15 01:16:16,075 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-10-15 01:16:16,076 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-10-15 01:16:16,076 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-10-15 01:16:16,076 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-10-15 01:16:16,076 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2019-10-15 01:16:16,076 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2019-10-15 01:16:16,076 INFO L130 BoogieDeclarations]: Found specification of procedure getClientPrivateKey [2019-10-15 01:16:16,076 INFO L130 BoogieDeclarations]: Found specification of procedure isKeyPairValid [2019-10-15 01:16:16,077 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__EncryptDecrypt_spec__1 [2019-10-15 01:16:16,077 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__EncryptDecrypt_spec__2 [2019-10-15 01:16:16,077 INFO L130 BoogieDeclarations]: Found specification of procedure initClient [2019-10-15 01:16:16,077 INFO L130 BoogieDeclarations]: Found specification of procedure getClientName [2019-10-15 01:16:16,077 INFO L130 BoogieDeclarations]: Found specification of procedure setClientName [2019-10-15 01:16:16,077 INFO L130 BoogieDeclarations]: Found specification of procedure getClientOutbuffer [2019-10-15 01:16:16,078 INFO L130 BoogieDeclarations]: Found specification of procedure setClientOutbuffer [2019-10-15 01:16:16,078 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookSize [2019-10-15 01:16:16,078 INFO L130 BoogieDeclarations]: Found specification of procedure createClientAddressBookEntry [2019-10-15 01:16:16,078 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAlias [2019-10-15 01:16:16,078 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAddress [2019-10-15 01:16:16,078 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAutoResponse [2019-10-15 01:16:16,079 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAutoResponse [2019-10-15 01:16:16,079 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringSize [2019-10-15 01:16:16,079 INFO L130 BoogieDeclarations]: Found specification of procedure getClientForwardReceiver [2019-10-15 01:16:16,079 INFO L130 BoogieDeclarations]: Found specification of procedure setClientForwardReceiver [2019-10-15 01:16:16,079 INFO L130 BoogieDeclarations]: Found specification of procedure getClientId [2019-10-15 01:16:16,079 INFO L130 BoogieDeclarations]: Found specification of procedure findPublicKey [2019-10-15 01:16:16,079 INFO L130 BoogieDeclarations]: Found specification of procedure findClientAddressBookAlias [2019-10-15 01:16:16,080 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringSize [2019-10-15 01:16:16,080 INFO L130 BoogieDeclarations]: Found specification of procedure prompt [2019-10-15 01:16:16,080 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-10-15 01:16:16,080 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailId [2019-10-15 01:16:16,080 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2019-10-15 01:16:16,080 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2019-10-15 01:16:16,081 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2019-10-15 01:16:16,081 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2019-10-15 01:16:16,081 INFO L130 BoogieDeclarations]: Found specification of procedure isSigned [2019-10-15 01:16:16,081 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSignKey [2019-10-15 01:16:16,081 INFO L130 BoogieDeclarations]: Found specification of procedure isVerified [2019-10-15 01:16:16,081 INFO L130 BoogieDeclarations]: Found specification of procedure printMail [2019-10-15 01:16:16,082 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2019-10-15 01:16:16,082 INFO L130 BoogieDeclarations]: Found specification of procedure createEmail [2019-10-15 01:16:16,082 INFO L130 BoogieDeclarations]: Found specification of procedure cloneEmail [2019-10-15 01:16:16,082 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__Keys [2019-10-15 01:16:16,082 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__AddressBook [2019-10-15 01:16:16,083 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__Sign [2019-10-15 01:16:16,083 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable__wrappee__Keys [2019-10-15 01:16:16,083 INFO L130 BoogieDeclarations]: Found specification of procedure initEmail [2019-10-15 01:16:16,083 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailId [2019-10-15 01:16:16,083 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSubject [2019-10-15 01:16:16,083 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSubject [2019-10-15 01:16:16,084 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailBody [2019-10-15 01:16:16,084 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailBody [2019-10-15 01:16:16,084 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2019-10-15 01:16:16,084 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2019-10-15 01:16:16,084 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSigned [2019-10-15 01:16:16,085 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSignKey [2019-10-15 01:16:16,085 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSignatureVerified [2019-10-15 01:16:16,085 INFO L130 BoogieDeclarations]: Found specification of procedure queue [2019-10-15 01:16:16,085 INFO L130 BoogieDeclarations]: Found specification of procedure mail [2019-10-15 01:16:16,085 INFO L130 BoogieDeclarations]: Found specification of procedure deliver [2019-10-15 01:16:16,086 INFO L130 BoogieDeclarations]: Found specification of procedure incoming [2019-10-15 01:16:16,086 INFO L130 BoogieDeclarations]: Found specification of procedure createClient [2019-10-15 01:16:16,086 INFO L130 BoogieDeclarations]: Found specification of procedure sendToAddressBook [2019-10-15 01:16:16,086 INFO L130 BoogieDeclarations]: Found specification of procedure sign [2019-10-15 01:16:16,086 INFO L130 BoogieDeclarations]: Found specification of procedure verify [2019-10-15 01:16:16,086 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__Keys [2019-10-15 01:16:16,087 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__Encrypt [2019-10-15 01:16:16,087 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__AddressBook [2019-10-15 01:16:16,087 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Sign [2019-10-15 01:16:16,087 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Verify [2019-10-15 01:16:16,087 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-15 01:16:16,088 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-15 01:16:16,088 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-15 01:16:18,749 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-15 01:16:18,749 INFO L284 CfgBuilder]: Removed 4 assume(true) statements. [2019-10-15 01:16:18,752 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 01:16:18 BoogieIcfgContainer [2019-10-15 01:16:18,753 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-15 01:16:18,754 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-15 01:16:18,754 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-15 01:16:18,757 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-15 01:16:18,758 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.10 01:16:14" (1/3) ... [2019-10-15 01:16:18,759 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@318b1a3f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 01:16:18, skipping insertion in model container [2019-10-15 01:16:18,759 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:16:15" (2/3) ... [2019-10-15 01:16:18,760 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@318b1a3f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 01:16:18, skipping insertion in model container [2019-10-15 01:16:18,760 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 01:16:18" (3/3) ... [2019-10-15 01:16:18,761 INFO L109 eAbstractionObserver]: Analyzing ICFG email_spec6_product29.cil.c [2019-10-15 01:16:18,772 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-15 01:16:18,786 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-15 01:16:18,799 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-15 01:16:18,843 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-15 01:16:18,844 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-15 01:16:18,848 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-15 01:16:18,849 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-15 01:16:18,849 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-15 01:16:18,850 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-15 01:16:18,850 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-15 01:16:18,850 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-15 01:16:18,896 INFO L276 IsEmpty]: Start isEmpty. Operand 610 states. [2019-10-15 01:16:18,943 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 199 [2019-10-15 01:16:18,943 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:16:18,945 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 01:16:18,950 INFO L410 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:16:18,958 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:16:18,959 INFO L82 PathProgramCache]: Analyzing trace with hash -704856289, now seen corresponding path program 1 times [2019-10-15 01:16:18,969 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:16:18,970 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1811841289] [2019-10-15 01:16:18,970 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:16:18,970 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:16:18,970 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:16:19,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:16:19,679 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2019-10-15 01:16:19,679 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1811841289] [2019-10-15 01:16:19,680 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:16:19,681 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-10-15 01:16:19,681 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [927331084] [2019-10-15 01:16:19,688 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-15 01:16:19,690 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:16:19,706 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-15 01:16:19,707 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-15 01:16:19,709 INFO L87 Difference]: Start difference. First operand 610 states. Second operand 2 states. [2019-10-15 01:16:19,841 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:16:19,841 INFO L93 Difference]: Finished difference Result 861 states and 1174 transitions. [2019-10-15 01:16:19,842 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-15 01:16:19,844 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 198 [2019-10-15 01:16:19,845 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:16:19,886 INFO L225 Difference]: With dead ends: 861 [2019-10-15 01:16:19,886 INFO L226 Difference]: Without dead ends: 553 [2019-10-15 01:16:19,898 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-15 01:16:19,923 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 553 states. [2019-10-15 01:16:20,031 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 553 to 553. [2019-10-15 01:16:20,033 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 553 states. [2019-10-15 01:16:20,039 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 553 states to 553 states and 758 transitions. [2019-10-15 01:16:20,041 INFO L78 Accepts]: Start accepts. Automaton has 553 states and 758 transitions. Word has length 198 [2019-10-15 01:16:20,044 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:16:20,044 INFO L462 AbstractCegarLoop]: Abstraction has 553 states and 758 transitions. [2019-10-15 01:16:20,044 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-15 01:16:20,044 INFO L276 IsEmpty]: Start isEmpty. Operand 553 states and 758 transitions. [2019-10-15 01:16:20,050 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 200 [2019-10-15 01:16:20,050 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:16:20,051 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 01:16:20,051 INFO L410 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:16:20,051 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:16:20,052 INFO L82 PathProgramCache]: Analyzing trace with hash -1910809467, now seen corresponding path program 1 times [2019-10-15 01:16:20,052 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:16:20,052 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [753856543] [2019-10-15 01:16:20,052 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:16:20,052 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:16:20,053 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:16:20,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:16:20,324 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2019-10-15 01:16:20,324 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [753856543] [2019-10-15 01:16:20,325 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:16:20,325 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-15 01:16:20,325 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1939494858] [2019-10-15 01:16:20,327 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-15 01:16:20,328 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:16:20,328 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-15 01:16:20,328 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 01:16:20,328 INFO L87 Difference]: Start difference. First operand 553 states and 758 transitions. Second operand 3 states. [2019-10-15 01:16:20,372 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:16:20,372 INFO L93 Difference]: Finished difference Result 844 states and 1138 transitions. [2019-10-15 01:16:20,373 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-15 01:16:20,373 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 199 [2019-10-15 01:16:20,374 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:16:20,378 INFO L225 Difference]: With dead ends: 844 [2019-10-15 01:16:20,378 INFO L226 Difference]: Without dead ends: 556 [2019-10-15 01:16:20,380 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 01:16:20,382 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 556 states. [2019-10-15 01:16:20,401 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 556 to 555. [2019-10-15 01:16:20,401 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 555 states. [2019-10-15 01:16:20,404 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 555 states to 555 states and 760 transitions. [2019-10-15 01:16:20,405 INFO L78 Accepts]: Start accepts. Automaton has 555 states and 760 transitions. Word has length 199 [2019-10-15 01:16:20,405 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:16:20,406 INFO L462 AbstractCegarLoop]: Abstraction has 555 states and 760 transitions. [2019-10-15 01:16:20,406 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-15 01:16:20,406 INFO L276 IsEmpty]: Start isEmpty. Operand 555 states and 760 transitions. [2019-10-15 01:16:20,410 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 206 [2019-10-15 01:16:20,410 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:16:20,410 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 01:16:20,411 INFO L410 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:16:20,411 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:16:20,411 INFO L82 PathProgramCache]: Analyzing trace with hash 1939703097, now seen corresponding path program 1 times [2019-10-15 01:16:20,411 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:16:20,412 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [836229414] [2019-10-15 01:16:20,412 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:16:20,412 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:16:20,412 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:16:20,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:16:20,593 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2019-10-15 01:16:20,593 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [836229414] [2019-10-15 01:16:20,594 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:16:20,594 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-15 01:16:20,594 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1840475031] [2019-10-15 01:16:20,595 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-15 01:16:20,598 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:16:20,599 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-15 01:16:20,599 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 01:16:20,599 INFO L87 Difference]: Start difference. First operand 555 states and 760 transitions. Second operand 3 states. [2019-10-15 01:16:20,641 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:16:20,641 INFO L93 Difference]: Finished difference Result 1086 states and 1518 transitions. [2019-10-15 01:16:20,642 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-15 01:16:20,642 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 205 [2019-10-15 01:16:20,642 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:16:20,648 INFO L225 Difference]: With dead ends: 1086 [2019-10-15 01:16:20,649 INFO L226 Difference]: Without dead ends: 596 [2019-10-15 01:16:20,653 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 01:16:20,655 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 596 states. [2019-10-15 01:16:20,690 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 596 to 595. [2019-10-15 01:16:20,690 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 595 states. [2019-10-15 01:16:20,695 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 595 states to 595 states and 829 transitions. [2019-10-15 01:16:20,696 INFO L78 Accepts]: Start accepts. Automaton has 595 states and 829 transitions. Word has length 205 [2019-10-15 01:16:20,698 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:16:20,698 INFO L462 AbstractCegarLoop]: Abstraction has 595 states and 829 transitions. [2019-10-15 01:16:20,698 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-15 01:16:20,698 INFO L276 IsEmpty]: Start isEmpty. Operand 595 states and 829 transitions. [2019-10-15 01:16:20,702 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 207 [2019-10-15 01:16:20,703 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:16:20,703 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 01:16:20,703 INFO L410 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:16:20,704 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:16:20,704 INFO L82 PathProgramCache]: Analyzing trace with hash -1931523851, now seen corresponding path program 1 times [2019-10-15 01:16:20,704 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:16:20,704 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [478919] [2019-10-15 01:16:20,705 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:16:20,705 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:16:20,705 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:16:20,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:16:21,248 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2019-10-15 01:16:21,249 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [478919] [2019-10-15 01:16:21,249 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:16:21,250 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2019-10-15 01:16:21,250 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1600421445] [2019-10-15 01:16:21,251 INFO L442 AbstractCegarLoop]: Interpolant automaton has 11 states [2019-10-15 01:16:21,251 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:16:21,252 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2019-10-15 01:16:21,252 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2019-10-15 01:16:21,252 INFO L87 Difference]: Start difference. First operand 595 states and 829 transitions. Second operand 11 states. [2019-10-15 01:16:27,299 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:16:27,299 INFO L93 Difference]: Finished difference Result 3017 states and 4347 transitions. [2019-10-15 01:16:27,300 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2019-10-15 01:16:27,300 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 206 [2019-10-15 01:16:27,301 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:16:27,320 INFO L225 Difference]: With dead ends: 3017 [2019-10-15 01:16:27,321 INFO L226 Difference]: Without dead ends: 2742 [2019-10-15 01:16:27,324 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 281 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=209, Invalid=913, Unknown=0, NotChecked=0, Total=1122 [2019-10-15 01:16:27,328 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2742 states. [2019-10-15 01:16:27,434 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2742 to 2721. [2019-10-15 01:16:27,434 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2721 states. [2019-10-15 01:16:27,453 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2721 states to 2721 states and 3813 transitions. [2019-10-15 01:16:27,453 INFO L78 Accepts]: Start accepts. Automaton has 2721 states and 3813 transitions. Word has length 206 [2019-10-15 01:16:27,454 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:16:27,454 INFO L462 AbstractCegarLoop]: Abstraction has 2721 states and 3813 transitions. [2019-10-15 01:16:27,454 INFO L463 AbstractCegarLoop]: Interpolant automaton has 11 states. [2019-10-15 01:16:27,455 INFO L276 IsEmpty]: Start isEmpty. Operand 2721 states and 3813 transitions. [2019-10-15 01:16:27,459 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 208 [2019-10-15 01:16:27,460 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:16:27,460 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 01:16:27,461 INFO L410 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:16:27,461 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:16:27,461 INFO L82 PathProgramCache]: Analyzing trace with hash 1283992778, now seen corresponding path program 1 times [2019-10-15 01:16:27,461 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:16:27,462 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [374624779] [2019-10-15 01:16:27,462 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:16:27,462 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:16:27,462 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:16:27,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:16:27,908 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2019-10-15 01:16:27,909 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [374624779] [2019-10-15 01:16:27,909 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:16:27,910 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [] total 20 [2019-10-15 01:16:27,910 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1243283531] [2019-10-15 01:16:27,911 INFO L442 AbstractCegarLoop]: Interpolant automaton has 20 states [2019-10-15 01:16:27,911 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:16:27,912 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2019-10-15 01:16:27,913 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=343, Unknown=0, NotChecked=0, Total=380 [2019-10-15 01:16:27,913 INFO L87 Difference]: Start difference. First operand 2721 states and 3813 transitions. Second operand 20 states. [2019-10-15 01:16:28,721 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:16:28,721 INFO L93 Difference]: Finished difference Result 5086 states and 7256 transitions. [2019-10-15 01:16:28,721 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2019-10-15 01:16:28,721 INFO L78 Accepts]: Start accepts. Automaton has 20 states. Word has length 207 [2019-10-15 01:16:28,722 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:16:28,741 INFO L225 Difference]: With dead ends: 5086 [2019-10-15 01:16:28,741 INFO L226 Difference]: Without dead ends: 2667 [2019-10-15 01:16:28,751 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=69, Invalid=687, Unknown=0, NotChecked=0, Total=756 [2019-10-15 01:16:28,756 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2667 states. [2019-10-15 01:16:28,859 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2667 to 2665. [2019-10-15 01:16:28,859 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2665 states. [2019-10-15 01:16:28,878 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2665 states to 2665 states and 3727 transitions. [2019-10-15 01:16:28,879 INFO L78 Accepts]: Start accepts. Automaton has 2665 states and 3727 transitions. Word has length 207 [2019-10-15 01:16:28,880 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:16:28,880 INFO L462 AbstractCegarLoop]: Abstraction has 2665 states and 3727 transitions. [2019-10-15 01:16:28,880 INFO L463 AbstractCegarLoop]: Interpolant automaton has 20 states. [2019-10-15 01:16:28,880 INFO L276 IsEmpty]: Start isEmpty. Operand 2665 states and 3727 transitions. [2019-10-15 01:16:28,885 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 217 [2019-10-15 01:16:28,885 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:16:28,886 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 01:16:28,886 INFO L410 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:16:28,886 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:16:28,887 INFO L82 PathProgramCache]: Analyzing trace with hash 230982638, now seen corresponding path program 1 times [2019-10-15 01:16:28,887 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:16:28,887 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [693817855] [2019-10-15 01:16:28,888 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:16:28,888 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:16:28,888 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:16:28,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:16:29,131 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2019-10-15 01:16:29,131 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [693817855] [2019-10-15 01:16:29,132 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:16:29,133 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-10-15 01:16:29,133 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1936040877] [2019-10-15 01:16:29,134 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-10-15 01:16:29,134 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:16:29,134 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-10-15 01:16:29,135 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-10-15 01:16:29,135 INFO L87 Difference]: Start difference. First operand 2665 states and 3727 transitions. Second operand 6 states. [2019-10-15 01:16:29,984 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:16:29,984 INFO L93 Difference]: Finished difference Result 7713 states and 10967 transitions. [2019-10-15 01:16:29,985 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-10-15 01:16:29,985 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 216 [2019-10-15 01:16:29,986 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:16:30,035 INFO L225 Difference]: With dead ends: 7713 [2019-10-15 01:16:30,036 INFO L226 Difference]: Without dead ends: 5417 [2019-10-15 01:16:30,051 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2019-10-15 01:16:30,061 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5417 states. [2019-10-15 01:16:30,432 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5417 to 5346. [2019-10-15 01:16:30,432 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5346 states. [2019-10-15 01:16:30,471 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5346 states to 5346 states and 7577 transitions. [2019-10-15 01:16:30,473 INFO L78 Accepts]: Start accepts. Automaton has 5346 states and 7577 transitions. Word has length 216 [2019-10-15 01:16:30,475 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:16:30,476 INFO L462 AbstractCegarLoop]: Abstraction has 5346 states and 7577 transitions. [2019-10-15 01:16:30,476 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-10-15 01:16:30,476 INFO L276 IsEmpty]: Start isEmpty. Operand 5346 states and 7577 transitions. [2019-10-15 01:16:30,486 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 218 [2019-10-15 01:16:30,486 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:16:30,487 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 01:16:30,487 INFO L410 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:16:30,487 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:16:30,488 INFO L82 PathProgramCache]: Analyzing trace with hash -95717533, now seen corresponding path program 1 times [2019-10-15 01:16:30,488 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:16:30,488 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2111027560] [2019-10-15 01:16:30,488 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:16:30,488 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:16:30,489 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:16:30,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:16:30,864 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2019-10-15 01:16:30,864 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2111027560] [2019-10-15 01:16:30,864 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:16:30,865 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2019-10-15 01:16:30,865 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1008983620] [2019-10-15 01:16:30,866 INFO L442 AbstractCegarLoop]: Interpolant automaton has 13 states [2019-10-15 01:16:30,867 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:16:30,867 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2019-10-15 01:16:30,867 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=133, Unknown=0, NotChecked=0, Total=156 [2019-10-15 01:16:30,867 INFO L87 Difference]: Start difference. First operand 5346 states and 7577 transitions. Second operand 13 states. [2019-10-15 01:16:31,799 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:16:31,800 INFO L93 Difference]: Finished difference Result 10077 states and 14314 transitions. [2019-10-15 01:16:31,800 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2019-10-15 01:16:31,800 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 217 [2019-10-15 01:16:31,803 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:16:31,849 INFO L225 Difference]: With dead ends: 10077 [2019-10-15 01:16:31,850 INFO L226 Difference]: Without dead ends: 5400 [2019-10-15 01:16:31,875 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=73, Invalid=433, Unknown=0, NotChecked=0, Total=506 [2019-10-15 01:16:31,886 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5400 states. [2019-10-15 01:16:32,284 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5400 to 5382. [2019-10-15 01:16:32,284 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5382 states. [2019-10-15 01:16:32,309 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5382 states to 5382 states and 7631 transitions. [2019-10-15 01:16:32,311 INFO L78 Accepts]: Start accepts. Automaton has 5382 states and 7631 transitions. Word has length 217 [2019-10-15 01:16:32,312 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:16:32,312 INFO L462 AbstractCegarLoop]: Abstraction has 5382 states and 7631 transitions. [2019-10-15 01:16:32,312 INFO L463 AbstractCegarLoop]: Interpolant automaton has 13 states. [2019-10-15 01:16:32,312 INFO L276 IsEmpty]: Start isEmpty. Operand 5382 states and 7631 transitions. [2019-10-15 01:16:32,319 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 218 [2019-10-15 01:16:32,319 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:16:32,320 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 01:16:32,320 INFO L410 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:16:32,320 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:16:32,320 INFO L82 PathProgramCache]: Analyzing trace with hash 491058586, now seen corresponding path program 1 times [2019-10-15 01:16:32,321 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:16:32,321 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [379808143] [2019-10-15 01:16:32,322 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:16:32,322 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:16:32,322 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:16:32,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:16:32,506 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2019-10-15 01:16:32,506 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [379808143] [2019-10-15 01:16:32,506 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:16:32,507 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-10-15 01:16:32,507 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1154686456] [2019-10-15 01:16:32,508 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-15 01:16:32,509 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:16:32,509 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-15 01:16:32,509 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-10-15 01:16:32,509 INFO L87 Difference]: Start difference. First operand 5382 states and 7631 transitions. Second operand 5 states. [2019-10-15 01:16:34,308 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:16:34,309 INFO L93 Difference]: Finished difference Result 20027 states and 29083 transitions. [2019-10-15 01:16:34,309 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-10-15 01:16:34,309 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 217 [2019-10-15 01:16:34,310 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:16:34,451 INFO L225 Difference]: With dead ends: 20027 [2019-10-15 01:16:34,451 INFO L226 Difference]: Without dead ends: 15316 [2019-10-15 01:16:34,491 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2019-10-15 01:16:34,519 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15316 states. [2019-10-15 01:16:35,416 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15316 to 15204. [2019-10-15 01:16:35,416 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15204 states. [2019-10-15 01:16:35,485 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15204 states to 15204 states and 21825 transitions. [2019-10-15 01:16:35,488 INFO L78 Accepts]: Start accepts. Automaton has 15204 states and 21825 transitions. Word has length 217 [2019-10-15 01:16:35,488 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:16:35,488 INFO L462 AbstractCegarLoop]: Abstraction has 15204 states and 21825 transitions. [2019-10-15 01:16:35,488 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-15 01:16:35,489 INFO L276 IsEmpty]: Start isEmpty. Operand 15204 states and 21825 transitions. [2019-10-15 01:16:35,501 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 247 [2019-10-15 01:16:35,502 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:16:35,502 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 01:16:35,502 INFO L410 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:16:35,503 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:16:35,503 INFO L82 PathProgramCache]: Analyzing trace with hash -364250432, now seen corresponding path program 1 times [2019-10-15 01:16:35,503 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:16:35,503 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1916213999] [2019-10-15 01:16:35,504 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:16:35,504 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:16:35,504 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:16:35,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:16:35,716 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2019-10-15 01:16:35,717 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1916213999] [2019-10-15 01:16:35,719 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:16:35,720 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-15 01:16:35,720 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [698726789] [2019-10-15 01:16:35,721 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-15 01:16:35,722 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:16:35,722 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-15 01:16:35,723 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 01:16:35,723 INFO L87 Difference]: Start difference. First operand 15204 states and 21825 transitions. Second operand 3 states. [2019-10-15 01:16:36,395 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:16:36,395 INFO L93 Difference]: Finished difference Result 30671 states and 44186 transitions. [2019-10-15 01:16:36,396 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-15 01:16:36,396 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 246 [2019-10-15 01:16:36,396 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:16:36,518 INFO L225 Difference]: With dead ends: 30671 [2019-10-15 01:16:36,518 INFO L226 Difference]: Without dead ends: 15532 [2019-10-15 01:16:36,579 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 01:16:36,598 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15532 states. [2019-10-15 01:16:37,343 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15532 to 15528. [2019-10-15 01:16:37,344 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15528 states. [2019-10-15 01:16:37,414 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15528 states to 15528 states and 22422 transitions. [2019-10-15 01:16:37,420 INFO L78 Accepts]: Start accepts. Automaton has 15528 states and 22422 transitions. Word has length 246 [2019-10-15 01:16:37,420 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:16:37,420 INFO L462 AbstractCegarLoop]: Abstraction has 15528 states and 22422 transitions. [2019-10-15 01:16:37,421 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-15 01:16:37,421 INFO L276 IsEmpty]: Start isEmpty. Operand 15528 states and 22422 transitions. [2019-10-15 01:16:37,437 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 254 [2019-10-15 01:16:37,437 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:16:37,438 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 01:16:37,438 INFO L410 AbstractCegarLoop]: === Iteration 10 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:16:37,438 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:16:37,439 INFO L82 PathProgramCache]: Analyzing trace with hash -1895342000, now seen corresponding path program 1 times [2019-10-15 01:16:37,439 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:16:37,439 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [762114630] [2019-10-15 01:16:37,439 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:16:37,439 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:16:37,440 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:16:37,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:16:38,445 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2019-10-15 01:16:38,446 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [762114630] [2019-10-15 01:16:38,446 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:16:38,447 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-15 01:16:38,447 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [583783990] [2019-10-15 01:16:38,448 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-15 01:16:38,449 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:16:38,449 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-15 01:16:38,449 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 01:16:38,450 INFO L87 Difference]: Start difference. First operand 15528 states and 22422 transitions. Second operand 3 states. [2019-10-15 01:16:38,984 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:16:38,985 INFO L93 Difference]: Finished difference Result 31603 states and 45913 transitions. [2019-10-15 01:16:38,985 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-15 01:16:38,985 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 253 [2019-10-15 01:16:38,985 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:16:39,075 INFO L225 Difference]: With dead ends: 31603 [2019-10-15 01:16:39,075 INFO L226 Difference]: Without dead ends: 16140 [2019-10-15 01:16:39,120 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 01:16:39,144 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16140 states. [2019-10-15 01:16:39,877 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16140 to 16136. [2019-10-15 01:16:39,878 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16136 states. [2019-10-15 01:16:40,162 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16136 states to 16136 states and 23544 transitions. [2019-10-15 01:16:40,165 INFO L78 Accepts]: Start accepts. Automaton has 16136 states and 23544 transitions. Word has length 253 [2019-10-15 01:16:40,167 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:16:40,167 INFO L462 AbstractCegarLoop]: Abstraction has 16136 states and 23544 transitions. [2019-10-15 01:16:40,167 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-15 01:16:40,167 INFO L276 IsEmpty]: Start isEmpty. Operand 16136 states and 23544 transitions. [2019-10-15 01:16:40,186 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 249 [2019-10-15 01:16:40,186 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:16:40,187 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 01:16:40,187 INFO L410 AbstractCegarLoop]: === Iteration 11 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:16:40,187 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:16:40,188 INFO L82 PathProgramCache]: Analyzing trace with hash -1315893858, now seen corresponding path program 1 times [2019-10-15 01:16:40,188 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:16:40,188 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1615887452] [2019-10-15 01:16:40,188 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:16:40,188 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:16:40,188 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:16:40,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:16:40,417 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2019-10-15 01:16:40,418 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1615887452] [2019-10-15 01:16:40,418 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:16:40,418 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-10-15 01:16:40,419 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [622955348] [2019-10-15 01:16:40,420 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-10-15 01:16:40,420 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:16:40,420 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-10-15 01:16:40,421 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2019-10-15 01:16:40,421 INFO L87 Difference]: Start difference. First operand 16136 states and 23544 transitions. Second operand 8 states.