java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/product-lines/email_spec9_product14.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-13a467a-m [2019-10-14 23:31:38,124 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-14 23:31:38,127 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-14 23:31:38,143 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-14 23:31:38,143 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-14 23:31:38,145 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-14 23:31:38,147 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-14 23:31:38,156 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-14 23:31:38,160 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-14 23:31:38,162 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-14 23:31:38,164 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-14 23:31:38,166 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-14 23:31:38,166 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-14 23:31:38,167 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-14 23:31:38,170 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-14 23:31:38,171 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-14 23:31:38,172 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-14 23:31:38,173 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-14 23:31:38,175 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-14 23:31:38,180 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-14 23:31:38,184 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-14 23:31:38,186 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-14 23:31:38,188 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-14 23:31:38,189 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-14 23:31:38,191 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-14 23:31:38,191 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-14 23:31:38,191 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-14 23:31:38,193 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-14 23:31:38,194 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-14 23:31:38,196 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-14 23:31:38,196 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-14 23:31:38,198 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-14 23:31:38,198 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-14 23:31:38,199 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-14 23:31:38,200 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-14 23:31:38,200 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-14 23:31:38,201 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-14 23:31:38,201 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-14 23:31:38,201 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-14 23:31:38,202 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-14 23:31:38,203 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-14 23:31:38,204 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 [2019-10-14 23:31:38,229 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-14 23:31:38,229 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-14 23:31:38,230 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-14 23:31:38,230 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-14 23:31:38,231 INFO L138 SettingsManager]: * Use SBE=true [2019-10-14 23:31:38,231 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-14 23:31:38,231 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-14 23:31:38,231 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-14 23:31:38,231 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-14 23:31:38,232 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-14 23:31:38,232 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-14 23:31:38,232 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-14 23:31:38,232 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-14 23:31:38,232 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-14 23:31:38,233 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-14 23:31:38,233 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-14 23:31:38,233 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-14 23:31:38,233 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-14 23:31:38,233 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-14 23:31:38,233 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-14 23:31:38,234 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-14 23:31:38,234 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-14 23:31:38,234 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-14 23:31:38,234 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-14 23:31:38,234 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-14 23:31:38,235 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-14 23:31:38,235 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-14 23:31:38,235 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-14 23:31:38,235 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-10-14 23:31:38,495 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-14 23:31:38,514 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-14 23:31:38,518 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-14 23:31:38,519 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-14 23:31:38,520 INFO L275 PluginConnector]: CDTParser initialized [2019-10-14 23:31:38,520 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/email_spec9_product14.cil.c [2019-10-14 23:31:38,594 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ecd299dc5/fe3e076a194245358c625f57ba773932/FLAGa009d690a [2019-10-14 23:31:39,213 INFO L306 CDTParser]: Found 1 translation units. [2019-10-14 23:31:39,214 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/email_spec9_product14.cil.c [2019-10-14 23:31:39,240 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ecd299dc5/fe3e076a194245358c625f57ba773932/FLAGa009d690a [2019-10-14 23:31:39,397 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ecd299dc5/fe3e076a194245358c625f57ba773932 [2019-10-14 23:31:39,405 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-14 23:31:39,407 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-14 23:31:39,408 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-14 23:31:39,408 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-14 23:31:39,411 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-14 23:31:39,412 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 11:31:39" (1/1) ... [2019-10-14 23:31:39,415 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2a08bfe2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:31:39, skipping insertion in model container [2019-10-14 23:31:39,415 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 11:31:39" (1/1) ... [2019-10-14 23:31:39,423 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-14 23:31:39,505 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-14 23:31:40,245 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-14 23:31:40,273 INFO L188 MainTranslator]: Completed pre-run [2019-10-14 23:31:40,377 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-14 23:31:40,452 INFO L192 MainTranslator]: Completed translation [2019-10-14 23:31:40,453 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:31:40 WrapperNode [2019-10-14 23:31:40,453 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-14 23:31:40,454 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-14 23:31:40,454 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-14 23:31:40,454 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-14 23:31:40,468 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:31:40" (1/1) ... [2019-10-14 23:31:40,468 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:31:40" (1/1) ... [2019-10-14 23:31:40,501 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:31:40" (1/1) ... [2019-10-14 23:31:40,502 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:31:40" (1/1) ... [2019-10-14 23:31:40,571 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:31:40" (1/1) ... [2019-10-14 23:31:40,601 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:31:40" (1/1) ... [2019-10-14 23:31:40,624 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:31:40" (1/1) ... [2019-10-14 23:31:40,652 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-14 23:31:40,653 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-14 23:31:40,653 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-14 23:31:40,653 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-14 23:31:40,654 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:31:40" (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 [2019-10-14 23:31:40,727 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-14 23:31:40,728 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-14 23:31:40,728 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-10-14 23:31:40,728 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob__wrappee__Base [2019-10-14 23:31:40,728 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob [2019-10-14 23:31:40,729 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh__wrappee__Base [2019-10-14 23:31:40,729 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh [2019-10-14 23:31:40,729 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck__wrappee__Base [2019-10-14 23:31:40,729 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck [2019-10-14 23:31:40,730 INFO L138 BoogieDeclarations]: Found implementation of procedure bobToRjh [2019-10-14 23:31:40,730 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhToBob [2019-10-14 23:31:40,731 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-10-14 23:31:40,731 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-14 23:31:40,731 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAdd [2019-10-14 23:31:40,731 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAdd [2019-10-14 23:31:40,732 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAddChuck [2019-10-14 23:31:40,732 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAddChuck [2019-10-14 23:31:40,732 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2019-10-14 23:31:40,732 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAddRjh [2019-10-14 23:31:40,732 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhDeletePrivateKey [2019-10-14 23:31:40,733 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyChange [2019-10-14 23:31:40,733 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyChange [2019-10-14 23:31:40,733 INFO L138 BoogieDeclarations]: Found implementation of procedure bobSetAddressBook [2019-10-14 23:31:40,733 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__EncryptForward_spec__1 [2019-10-14 23:31:40,734 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__EncryptForward_spec__2 [2019-10-14 23:31:40,734 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-10-14 23:31:40,734 INFO L138 BoogieDeclarations]: Found implementation of procedure mail [2019-10-14 23:31:40,734 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__Keys [2019-10-14 23:31:40,735 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__Encrypt [2019-10-14 23:31:40,735 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2019-10-14 23:31:40,735 INFO L138 BoogieDeclarations]: Found implementation of procedure deliver [2019-10-14 23:31:40,736 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__AddressBook [2019-10-14 23:31:40,736 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming [2019-10-14 23:31:40,736 INFO L138 BoogieDeclarations]: Found implementation of procedure createClient [2019-10-14 23:31:40,736 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2019-10-14 23:31:40,737 INFO L138 BoogieDeclarations]: Found implementation of procedure queue [2019-10-14 23:31:40,737 INFO L138 BoogieDeclarations]: Found implementation of procedure is_queue_empty [2019-10-14 23:31:40,737 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_client [2019-10-14 23:31:40,737 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_email [2019-10-14 23:31:40,737 INFO L138 BoogieDeclarations]: Found implementation of procedure isKeyPairValid [2019-10-14 23:31:40,738 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2019-10-14 23:31:40,738 INFO L138 BoogieDeclarations]: Found implementation of procedure sendToAddressBook [2019-10-14 23:31:40,738 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-10-14 23:31:40,738 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-10-14 23:31:40,739 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-10-14 23:31:40,739 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-10-14 23:31:40,739 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-10-14 23:31:40,739 INFO L138 BoogieDeclarations]: Found implementation of procedure prompt [2019-10-14 23:31:40,740 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-10-14 23:31:40,740 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-10-14 23:31:40,740 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-10-14 23:31:40,740 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-10-14 23:31:40,740 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-10-14 23:31:40,741 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-10-14 23:31:40,741 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__Keys [2019-10-14 23:31:40,741 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail [2019-10-14 23:31:40,741 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable__wrappee__Keys [2019-10-14 23:31:40,741 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2019-10-14 23:31:40,741 INFO L138 BoogieDeclarations]: Found implementation of procedure cloneEmail [2019-10-14 23:31:40,742 INFO L138 BoogieDeclarations]: Found implementation of procedure createEmail [2019-10-14 23:31:40,742 INFO L138 BoogieDeclarations]: Found implementation of procedure initClient [2019-10-14 23:31:40,742 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientName [2019-10-14 23:31:40,742 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientName [2019-10-14 23:31:40,742 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientOutbuffer [2019-10-14 23:31:40,743 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientOutbuffer [2019-10-14 23:31:40,743 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookSize [2019-10-14 23:31:40,743 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookSize [2019-10-14 23:31:40,743 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientAddressBookEntry [2019-10-14 23:31:40,743 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAlias [2019-10-14 23:31:40,744 INFO L138 BoogieDeclarations]: Found implementation of procedure findClientAddressBookAlias [2019-10-14 23:31:40,744 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAlias [2019-10-14 23:31:40,744 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAddress [2019-10-14 23:31:40,744 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAddress [2019-10-14 23:31:40,744 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAutoResponse [2019-10-14 23:31:40,745 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAutoResponse [2019-10-14 23:31:40,745 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientPrivateKey [2019-10-14 23:31:40,745 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2019-10-14 23:31:40,745 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringSize [2019-10-14 23:31:40,745 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringSize [2019-10-14 23:31:40,746 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2019-10-14 23:31:40,746 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringUser [2019-10-14 23:31:40,746 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2019-10-14 23:31:40,746 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringPublicKey [2019-10-14 23:31:40,746 INFO L138 BoogieDeclarations]: Found implementation of procedure findPublicKey [2019-10-14 23:31:40,746 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2019-10-14 23:31:40,747 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientForwardReceiver [2019-10-14 23:31:40,747 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientForwardReceiver [2019-10-14 23:31:40,747 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientId [2019-10-14 23:31:40,747 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2019-10-14 23:31:40,747 INFO L138 BoogieDeclarations]: Found implementation of procedure initEmail [2019-10-14 23:31:40,748 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailId [2019-10-14 23:31:40,748 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailId [2019-10-14 23:31:40,748 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2019-10-14 23:31:40,748 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2019-10-14 23:31:40,748 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2019-10-14 23:31:40,749 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2019-10-14 23:31:40,749 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSubject [2019-10-14 23:31:40,749 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSubject [2019-10-14 23:31:40,749 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailBody [2019-10-14 23:31:40,749 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailBody [2019-10-14 23:31:40,749 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2019-10-14 23:31:40,750 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2019-10-14 23:31:40,750 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2019-10-14 23:31:40,750 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2019-10-14 23:31:40,750 INFO L138 BoogieDeclarations]: Found implementation of procedure isSigned [2019-10-14 23:31:40,750 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSigned [2019-10-14 23:31:40,751 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSignKey [2019-10-14 23:31:40,751 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSignKey [2019-10-14 23:31:40,751 INFO L138 BoogieDeclarations]: Found implementation of procedure isVerified [2019-10-14 23:31:40,751 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSignatureVerified [2019-10-14 23:31:40,751 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-14 23:31:40,751 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-14 23:31:40,752 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-10-14 23:31:40,752 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2019-10-14 23:31:40,752 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookSize [2019-10-14 23:31:40,752 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAlias [2019-10-14 23:31:40,752 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAddress [2019-10-14 23:31:40,753 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2019-10-14 23:31:40,753 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2019-10-14 23:31:40,753 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringUser [2019-10-14 23:31:40,753 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2019-10-14 23:31:40,753 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringPublicKey [2019-10-14 23:31:40,754 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2019-10-14 23:31:40,754 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2019-10-14 23:31:40,754 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-10-14 23:31:40,754 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-10-14 23:31:40,754 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-10-14 23:31:40,755 INFO L130 BoogieDeclarations]: Found specification of procedure is_queue_empty [2019-10-14 23:31:40,755 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_client [2019-10-14 23:31:40,755 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_email [2019-10-14 23:31:40,755 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2019-10-14 23:31:40,755 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2019-10-14 23:31:40,756 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2019-10-14 23:31:40,756 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob [2019-10-14 23:31:40,756 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh [2019-10-14 23:31:40,756 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck [2019-10-14 23:31:40,756 INFO L130 BoogieDeclarations]: Found specification of procedure bobToRjh [2019-10-14 23:31:40,756 INFO L130 BoogieDeclarations]: Found specification of procedure rjhToBob [2019-10-14 23:31:40,757 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-10-14 23:31:40,757 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-10-14 23:31:40,757 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-14 23:31:40,757 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAdd [2019-10-14 23:31:40,757 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAddChuck [2019-10-14 23:31:40,757 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAdd [2019-10-14 23:31:40,758 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAddChuck [2019-10-14 23:31:40,758 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2019-10-14 23:31:40,758 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyChange [2019-10-14 23:31:40,758 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyChange [2019-10-14 23:31:40,758 INFO L130 BoogieDeclarations]: Found specification of procedure rjhDeletePrivateKey [2019-10-14 23:31:40,758 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAddRjh [2019-10-14 23:31:40,759 INFO L130 BoogieDeclarations]: Found specification of procedure bobSetAddressBook [2019-10-14 23:31:40,759 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob__wrappee__Base [2019-10-14 23:31:40,759 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh__wrappee__Base [2019-10-14 23:31:40,759 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck__wrappee__Base [2019-10-14 23:31:40,759 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-14 23:31:40,759 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-10-14 23:31:40,760 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2019-10-14 23:31:40,760 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__EncryptForward_spec__1 [2019-10-14 23:31:40,760 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__EncryptForward_spec__2 [2019-10-14 23:31:40,760 INFO L130 BoogieDeclarations]: Found specification of procedure initClient [2019-10-14 23:31:40,760 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookSize [2019-10-14 23:31:40,761 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAddress [2019-10-14 23:31:40,761 INFO L130 BoogieDeclarations]: Found specification of procedure getClientPrivateKey [2019-10-14 23:31:40,761 INFO L130 BoogieDeclarations]: Found specification of procedure getClientId [2019-10-14 23:31:40,761 INFO L130 BoogieDeclarations]: Found specification of procedure findPublicKey [2019-10-14 23:31:40,761 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2019-10-14 23:31:40,761 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2019-10-14 23:31:40,762 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2019-10-14 23:31:40,762 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2019-10-14 23:31:40,762 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2019-10-14 23:31:40,762 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2019-10-14 23:31:40,762 INFO L130 BoogieDeclarations]: Found specification of procedure createEmail [2019-10-14 23:31:40,762 INFO L130 BoogieDeclarations]: Found specification of procedure queue [2019-10-14 23:31:40,763 INFO L130 BoogieDeclarations]: Found specification of procedure mail [2019-10-14 23:31:40,763 INFO L130 BoogieDeclarations]: Found specification of procedure deliver [2019-10-14 23:31:40,763 INFO L130 BoogieDeclarations]: Found specification of procedure incoming [2019-10-14 23:31:40,763 INFO L130 BoogieDeclarations]: Found specification of procedure createClient [2019-10-14 23:31:40,763 INFO L130 BoogieDeclarations]: Found specification of procedure isKeyPairValid [2019-10-14 23:31:40,763 INFO L130 BoogieDeclarations]: Found specification of procedure sendToAddressBook [2019-10-14 23:31:40,764 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__Keys [2019-10-14 23:31:40,764 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__Encrypt [2019-10-14 23:31:40,764 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__AddressBook [2019-10-14 23:31:40,764 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-10-14 23:31:40,764 INFO L130 BoogieDeclarations]: Found specification of procedure prompt [2019-10-14 23:31:40,764 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-10-14 23:31:40,764 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-10-14 23:31:40,765 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-14 23:31:40,765 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-10-14 23:31:40,765 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-14 23:31:40,765 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-14 23:31:40,765 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-14 23:31:40,765 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-14 23:31:40,765 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-10-14 23:31:40,765 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-14 23:31:40,766 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-10-14 23:31:40,766 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-10-14 23:31:40,766 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-14 23:31:40,766 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-10-14 23:31:40,766 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-10-14 23:31:40,766 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-10-14 23:31:40,766 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailId [2019-10-14 23:31:40,767 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2019-10-14 23:31:40,767 INFO L130 BoogieDeclarations]: Found specification of procedure printMail [2019-10-14 23:31:40,767 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2019-10-14 23:31:40,767 INFO L130 BoogieDeclarations]: Found specification of procedure cloneEmail [2019-10-14 23:31:40,767 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__Keys [2019-10-14 23:31:40,767 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable__wrappee__Keys [2019-10-14 23:31:40,767 INFO L130 BoogieDeclarations]: Found specification of procedure getClientName [2019-10-14 23:31:40,768 INFO L130 BoogieDeclarations]: Found specification of procedure setClientName [2019-10-14 23:31:40,768 INFO L130 BoogieDeclarations]: Found specification of procedure getClientOutbuffer [2019-10-14 23:31:40,768 INFO L130 BoogieDeclarations]: Found specification of procedure setClientOutbuffer [2019-10-14 23:31:40,768 INFO L130 BoogieDeclarations]: Found specification of procedure createClientAddressBookEntry [2019-10-14 23:31:40,768 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAlias [2019-10-14 23:31:40,768 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAutoResponse [2019-10-14 23:31:40,769 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAutoResponse [2019-10-14 23:31:40,769 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringSize [2019-10-14 23:31:40,769 INFO L130 BoogieDeclarations]: Found specification of procedure getClientForwardReceiver [2019-10-14 23:31:40,769 INFO L130 BoogieDeclarations]: Found specification of procedure setClientForwardReceiver [2019-10-14 23:31:40,769 INFO L130 BoogieDeclarations]: Found specification of procedure findClientAddressBookAlias [2019-10-14 23:31:40,769 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringSize [2019-10-14 23:31:40,770 INFO L130 BoogieDeclarations]: Found specification of procedure initEmail [2019-10-14 23:31:40,770 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailId [2019-10-14 23:31:40,770 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSubject [2019-10-14 23:31:40,770 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSubject [2019-10-14 23:31:40,770 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailBody [2019-10-14 23:31:40,771 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailBody [2019-10-14 23:31:40,771 INFO L130 BoogieDeclarations]: Found specification of procedure isSigned [2019-10-14 23:31:40,771 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSigned [2019-10-14 23:31:40,771 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSignKey [2019-10-14 23:31:40,771 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSignKey [2019-10-14 23:31:40,771 INFO L130 BoogieDeclarations]: Found specification of procedure isVerified [2019-10-14 23:31:40,772 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSignatureVerified [2019-10-14 23:31:40,772 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-14 23:31:40,772 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-14 23:31:40,772 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-14 23:31:42,954 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-14 23:31:42,955 INFO L284 CfgBuilder]: Removed 4 assume(true) statements. [2019-10-14 23:31:42,957 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 11:31:42 BoogieIcfgContainer [2019-10-14 23:31:42,957 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-14 23:31:42,959 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-14 23:31:42,959 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-14 23:31:42,963 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-14 23:31:42,963 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.10 11:31:39" (1/3) ... [2019-10-14 23:31:42,964 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3c1cdeeb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 11:31:42, skipping insertion in model container [2019-10-14 23:31:42,964 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:31:40" (2/3) ... [2019-10-14 23:31:42,965 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3c1cdeeb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 11:31:42, skipping insertion in model container [2019-10-14 23:31:42,965 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 11:31:42" (3/3) ... [2019-10-14 23:31:42,967 INFO L109 eAbstractionObserver]: Analyzing ICFG email_spec9_product14.cil.c [2019-10-14 23:31:42,977 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-14 23:31:42,989 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-14 23:31:43,001 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-14 23:31:43,045 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-14 23:31:43,046 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-14 23:31:43,046 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-14 23:31:43,046 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-14 23:31:43,046 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-14 23:31:43,046 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-14 23:31:43,047 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-14 23:31:43,047 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-14 23:31:43,088 INFO L276 IsEmpty]: Start isEmpty. Operand 521 states. [2019-10-14 23:31:43,125 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2019-10-14 23:31:43,125 INFO L372 BasicCegarLoop]: Found error trace [2019-10-14 23:31:43,127 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-14 23:31:43,131 INFO L410 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-14 23:31:43,138 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-14 23:31:43,139 INFO L82 PathProgramCache]: Analyzing trace with hash 2026641383, now seen corresponding path program 1 times [2019-10-14 23:31:43,150 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-14 23:31:43,150 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1034174439] [2019-10-14 23:31:43,154 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:31:43,154 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:31:43,154 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-14 23:31:43,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:31:45,762 WARN L191 SmtUtils]: Spent 1.98 s on a formula simplification that was a NOOP. DAG size: 562 [2019-10-14 23:31:45,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:31:45,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:31:45,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:31:45,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:31:45,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:31:45,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:31:45,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:31:45,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:31:45,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:31:45,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:31:45,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:31:45,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:31:45,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:31:45,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:31:45,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:31:45,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:31:45,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:31:46,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:31:46,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:31:46,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:31:46,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:31:46,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:31:46,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:31:46,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:31:46,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:31:46,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:31:46,146 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2019-10-14 23:31:46,147 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1034174439] [2019-10-14 23:31:46,148 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-14 23:31:46,148 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2019-10-14 23:31:46,148 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1125368624] [2019-10-14 23:31:46,154 INFO L442 AbstractCegarLoop]: Interpolant automaton has 10 states [2019-10-14 23:31:46,154 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-14 23:31:46,168 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2019-10-14 23:31:46,169 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=59, Unknown=0, NotChecked=0, Total=90 [2019-10-14 23:31:46,171 INFO L87 Difference]: Start difference. First operand 521 states. Second operand 10 states. [2019-10-14 23:31:58,084 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-14 23:31:58,084 INFO L93 Difference]: Finished difference Result 1039 states and 1579 transitions. [2019-10-14 23:31:58,085 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2019-10-14 23:31:58,086 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 154 [2019-10-14 23:31:58,087 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-14 23:31:58,111 INFO L225 Difference]: With dead ends: 1039 [2019-10-14 23:31:58,111 INFO L226 Difference]: Without dead ends: 746 [2019-10-14 23:31:58,119 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 71 GetRequests, 51 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 74 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=147, Invalid=315, Unknown=0, NotChecked=0, Total=462 [2019-10-14 23:31:58,136 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 746 states. [2019-10-14 23:31:58,368 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 746 to 470. [2019-10-14 23:31:58,370 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 470 states. [2019-10-14 23:31:58,374 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 470 states to 470 states and 651 transitions. [2019-10-14 23:31:58,376 INFO L78 Accepts]: Start accepts. Automaton has 470 states and 651 transitions. Word has length 154 [2019-10-14 23:31:58,377 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-14 23:31:58,377 INFO L462 AbstractCegarLoop]: Abstraction has 470 states and 651 transitions. [2019-10-14 23:31:58,377 INFO L463 AbstractCegarLoop]: Interpolant automaton has 10 states. [2019-10-14 23:31:58,377 INFO L276 IsEmpty]: Start isEmpty. Operand 470 states and 651 transitions. [2019-10-14 23:31:58,381 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2019-10-14 23:31:58,382 INFO L372 BasicCegarLoop]: Found error trace [2019-10-14 23:31:58,382 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-14 23:31:58,382 INFO L410 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-14 23:31:58,383 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-14 23:31:58,383 INFO L82 PathProgramCache]: Analyzing trace with hash 918383061, now seen corresponding path program 1 times [2019-10-14 23:31:58,383 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-14 23:31:58,383 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [326841664] [2019-10-14 23:31:58,384 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:31:58,384 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:31:58,384 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-14 23:31:58,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:32:00,186 WARN L191 SmtUtils]: Spent 1.56 s on a formula simplification that was a NOOP. DAG size: 562 [2019-10-14 23:32:00,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:32:00,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:32:00,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:32:00,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:32:00,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:32:00,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:32:00,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:32:00,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:32:00,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:32:00,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:32:00,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:32:00,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:32:00,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:32:00,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:32:00,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:32:00,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:32:00,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:32:00,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:32:00,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:32:00,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:32:00,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:32:00,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:32:00,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:32:00,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:32:00,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:32:00,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:32:00,527 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2019-10-14 23:32:00,528 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [326841664] [2019-10-14 23:32:00,528 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-14 23:32:00,528 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2019-10-14 23:32:00,529 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1532253435] [2019-10-14 23:32:00,531 INFO L442 AbstractCegarLoop]: Interpolant automaton has 11 states [2019-10-14 23:32:00,531 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-14 23:32:00,531 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2019-10-14 23:32:00,531 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2019-10-14 23:32:00,532 INFO L87 Difference]: Start difference. First operand 470 states and 651 transitions. Second operand 11 states. [2019-10-14 23:32:04,333 WARN L191 SmtUtils]: Spent 1.58 s on a formula simplification that was a NOOP. DAG size: 565 [2019-10-14 23:32:15,871 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-14 23:32:15,872 INFO L93 Difference]: Finished difference Result 954 states and 1406 transitions. [2019-10-14 23:32:15,872 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2019-10-14 23:32:15,872 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 155 [2019-10-14 23:32:15,873 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-14 23:32:15,889 INFO L225 Difference]: With dead ends: 954 [2019-10-14 23:32:15,890 INFO L226 Difference]: Without dead ends: 749 [2019-10-14 23:32:15,892 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 50 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 3.5s TimeCoverageRelationStatistics Valid=106, Invalid=200, Unknown=0, NotChecked=0, Total=306 [2019-10-14 23:32:15,896 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 749 states. [2019-10-14 23:32:16,103 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 749 to 472. [2019-10-14 23:32:16,104 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 472 states. [2019-10-14 23:32:16,107 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 472 states to 472 states and 653 transitions. [2019-10-14 23:32:16,107 INFO L78 Accepts]: Start accepts. Automaton has 472 states and 653 transitions. Word has length 155 [2019-10-14 23:32:16,108 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-14 23:32:16,108 INFO L462 AbstractCegarLoop]: Abstraction has 472 states and 653 transitions. [2019-10-14 23:32:16,108 INFO L463 AbstractCegarLoop]: Interpolant automaton has 11 states. [2019-10-14 23:32:16,108 INFO L276 IsEmpty]: Start isEmpty. Operand 472 states and 653 transitions. [2019-10-14 23:32:16,111 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2019-10-14 23:32:16,111 INFO L372 BasicCegarLoop]: Found error trace [2019-10-14 23:32:16,112 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-14 23:32:16,112 INFO L410 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-14 23:32:16,112 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-14 23:32:16,113 INFO L82 PathProgramCache]: Analyzing trace with hash 1716493705, now seen corresponding path program 1 times [2019-10-14 23:32:16,113 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-14 23:32:16,113 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [958940699] [2019-10-14 23:32:16,113 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:32:16,113 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:32:16,114 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-14 23:32:16,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:32:17,971 WARN L191 SmtUtils]: Spent 1.69 s on a formula simplification that was a NOOP. DAG size: 562 [2019-10-14 23:32:17,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:32:18,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:32:18,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:32:18,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:32:18,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:32:18,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:32:18,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:32:18,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:32:18,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:32:18,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:32:18,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:32:18,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:32:18,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:32:18,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:32:18,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:32:18,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:32:18,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:32:18,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:32:18,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:32:18,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:32:18,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:32:18,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:32:18,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:32:18,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:32:18,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:32:18,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:32:18,324 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2019-10-14 23:32:18,325 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [958940699] [2019-10-14 23:32:18,325 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-14 23:32:18,325 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2019-10-14 23:32:18,325 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [742674852] [2019-10-14 23:32:18,326 INFO L442 AbstractCegarLoop]: Interpolant automaton has 11 states [2019-10-14 23:32:18,326 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-14 23:32:18,327 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2019-10-14 23:32:18,327 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2019-10-14 23:32:18,327 INFO L87 Difference]: Start difference. First operand 472 states and 653 transitions. Second operand 11 states.