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/ai/svcomp-Reach-32bit-Automizer_Default+AIv2_INT.epf -i ../../../trunk/examples/svcomp/product-lines/email_spec11_product36.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-fea9116 [2019-09-20 13:29:16,149 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-09-20 13:29:16,151 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-09-20 13:29:16,163 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-09-20 13:29:16,163 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-09-20 13:29:16,164 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-09-20 13:29:16,165 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-09-20 13:29:16,167 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-09-20 13:29:16,169 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-09-20 13:29:16,170 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-09-20 13:29:16,171 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-09-20 13:29:16,173 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-09-20 13:29:16,173 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-09-20 13:29:16,174 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-09-20 13:29:16,175 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-09-20 13:29:16,176 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-09-20 13:29:16,177 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-09-20 13:29:16,178 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-09-20 13:29:16,180 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-09-20 13:29:16,182 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-09-20 13:29:16,184 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-09-20 13:29:16,185 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-09-20 13:29:16,186 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-09-20 13:29:16,187 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-09-20 13:29:16,190 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-09-20 13:29:16,190 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-09-20 13:29:16,190 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-09-20 13:29:16,191 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-09-20 13:29:16,192 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-09-20 13:29:16,193 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-09-20 13:29:16,193 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-09-20 13:29:16,194 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-09-20 13:29:16,195 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-09-20 13:29:16,196 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-09-20 13:29:16,197 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-09-20 13:29:16,197 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-09-20 13:29:16,198 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-09-20 13:29:16,198 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-09-20 13:29:16,199 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-09-20 13:29:16,200 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-09-20 13:29:16,203 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-09-20 13:29:16,204 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/ai/svcomp-Reach-32bit-Automizer_Default+AIv2_INT.epf [2019-09-20 13:29:16,234 INFO L113 SettingsManager]: Loading preferences was successful [2019-09-20 13:29:16,234 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-09-20 13:29:16,235 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2019-09-20 13:29:16,235 INFO L138 SettingsManager]: * Log level for plugins=info [2019-09-20 13:29:16,236 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-09-20 13:29:16,236 INFO L138 SettingsManager]: * User list type=DISABLED [2019-09-20 13:29:16,236 INFO L138 SettingsManager]: * Ignore calls to and inside polymorphic procedures=false [2019-09-20 13:29:16,236 INFO L138 SettingsManager]: * Ignore calls to recursive procedures=false [2019-09-20 13:29:16,236 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-09-20 13:29:16,237 INFO L138 SettingsManager]: * Abstract domain=IntervalDomain [2019-09-20 13:29:16,237 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-09-20 13:29:16,238 INFO L138 SettingsManager]: * sizeof long=4 [2019-09-20 13:29:16,238 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-09-20 13:29:16,238 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-09-20 13:29:16,238 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-09-20 13:29:16,238 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-09-20 13:29:16,239 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-09-20 13:29:16,239 INFO L138 SettingsManager]: * sizeof long double=12 [2019-09-20 13:29:16,239 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-09-20 13:29:16,239 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-09-20 13:29:16,239 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-09-20 13:29:16,240 INFO L138 SettingsManager]: * Remove goto edges from RCFG=true [2019-09-20 13:29:16,240 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-09-20 13:29:16,240 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-09-20 13:29:16,240 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-09-20 13:29:16,240 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-09-20 13:29:16,241 INFO L138 SettingsManager]: * Trace refinement strategy=TAIPAN [2019-09-20 13:29:16,241 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-09-20 13:29:16,241 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-09-20 13:29:16,241 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2019-09-20 13:29:16,287 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-09-20 13:29:16,300 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-09-20 13:29:16,304 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-09-20 13:29:16,305 INFO L271 PluginConnector]: Initializing CDTParser... [2019-09-20 13:29:16,306 INFO L275 PluginConnector]: CDTParser initialized [2019-09-20 13:29:16,306 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/email_spec11_product36.cil.c [2019-09-20 13:29:16,370 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/43363f1c8/6b031510caef435bb32bc88695dad9ee/FLAG0e57306eb [2019-09-20 13:29:17,031 INFO L306 CDTParser]: Found 1 translation units. [2019-09-20 13:29:17,033 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/email_spec11_product36.cil.c [2019-09-20 13:29:17,057 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/43363f1c8/6b031510caef435bb32bc88695dad9ee/FLAG0e57306eb [2019-09-20 13:29:17,256 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/43363f1c8/6b031510caef435bb32bc88695dad9ee [2019-09-20 13:29:17,266 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-09-20 13:29:17,268 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-09-20 13:29:17,269 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-09-20 13:29:17,269 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-09-20 13:29:17,273 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-09-20 13:29:17,274 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.09 01:29:17" (1/1) ... [2019-09-20 13:29:17,277 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1d2dc4b4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:29:17, skipping insertion in model container [2019-09-20 13:29:17,277 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.09 01:29:17" (1/1) ... [2019-09-20 13:29:17,285 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-09-20 13:29:17,367 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-09-20 13:29:18,068 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-20 13:29:18,091 INFO L188 MainTranslator]: Completed pre-run [2019-09-20 13:29:18,210 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-20 13:29:18,290 INFO L192 MainTranslator]: Completed translation [2019-09-20 13:29:18,291 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:29:18 WrapperNode [2019-09-20 13:29:18,291 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-09-20 13:29:18,292 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-09-20 13:29:18,292 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-09-20 13:29:18,292 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-09-20 13:29:18,307 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:29:18" (1/1) ... [2019-09-20 13:29:18,307 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:29:18" (1/1) ... [2019-09-20 13:29:18,337 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:29:18" (1/1) ... [2019-09-20 13:29:18,338 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:29:18" (1/1) ... [2019-09-20 13:29:18,405 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:29:18" (1/1) ... [2019-09-20 13:29:18,430 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:29:18" (1/1) ... [2019-09-20 13:29:18,448 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:29:18" (1/1) ... [2019-09-20 13:29:18,473 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-09-20 13:29:18,477 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-09-20 13:29:18,477 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-09-20 13:29:18,477 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-09-20 13:29:18,478 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:29:18" (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 [2019-09-20 13:29:18,575 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-09-20 13:29:18,575 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-09-20 13:29:18,576 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-09-20 13:29:18,576 INFO L138 BoogieDeclarations]: Found implementation of procedure initEmail [2019-09-20 13:29:18,576 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailId [2019-09-20 13:29:18,576 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailId [2019-09-20 13:29:18,577 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2019-09-20 13:29:18,577 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2019-09-20 13:29:18,577 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2019-09-20 13:29:18,577 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2019-09-20 13:29:18,577 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSubject [2019-09-20 13:29:18,578 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSubject [2019-09-20 13:29:18,578 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailBody [2019-09-20 13:29:18,578 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailBody [2019-09-20 13:29:18,578 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2019-09-20 13:29:18,579 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2019-09-20 13:29:18,579 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2019-09-20 13:29:18,579 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2019-09-20 13:29:18,579 INFO L138 BoogieDeclarations]: Found implementation of procedure isSigned [2019-09-20 13:29:18,580 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSigned [2019-09-20 13:29:18,580 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSignKey [2019-09-20 13:29:18,580 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSignKey [2019-09-20 13:29:18,580 INFO L138 BoogieDeclarations]: Found implementation of procedure isVerified [2019-09-20 13:29:18,581 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSignatureVerified [2019-09-20 13:29:18,581 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-09-20 13:29:18,581 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-09-20 13:29:18,581 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-09-20 13:29:18,581 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-09-20 13:29:18,582 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-09-20 13:29:18,582 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-09-20 13:29:18,582 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-09-20 13:29:18,582 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-09-20 13:29:18,583 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-09-20 13:29:18,583 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-09-20 13:29:18,583 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob [2019-09-20 13:29:18,583 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh [2019-09-20 13:29:18,584 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck [2019-09-20 13:29:18,584 INFO L138 BoogieDeclarations]: Found implementation of procedure bobToRjh [2019-09-20 13:29:18,584 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhToBob [2019-09-20 13:29:18,584 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-09-20 13:29:18,585 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-09-20 13:29:18,585 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhSetAutoRespond [2019-09-20 13:29:18,585 INFO L138 BoogieDeclarations]: Found implementation of procedure bobSetAddressBook [2019-09-20 13:29:18,585 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhEnableForwarding [2019-09-20 13:29:18,586 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-09-20 13:29:18,586 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-09-20 13:29:18,586 INFO L138 BoogieDeclarations]: Found implementation of procedure initClient [2019-09-20 13:29:18,587 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientName [2019-09-20 13:29:18,587 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientName [2019-09-20 13:29:18,587 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientOutbuffer [2019-09-20 13:29:18,587 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientOutbuffer [2019-09-20 13:29:18,587 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookSize [2019-09-20 13:29:18,588 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookSize [2019-09-20 13:29:18,588 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientAddressBookEntry [2019-09-20 13:29:18,588 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAlias [2019-09-20 13:29:18,588 INFO L138 BoogieDeclarations]: Found implementation of procedure findClientAddressBookAlias [2019-09-20 13:29:18,589 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAlias [2019-09-20 13:29:18,589 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAddress [2019-09-20 13:29:18,589 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAddress [2019-09-20 13:29:18,590 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAutoResponse [2019-09-20 13:29:18,590 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAutoResponse [2019-09-20 13:29:18,590 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientPrivateKey [2019-09-20 13:29:18,590 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2019-09-20 13:29:18,591 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringSize [2019-09-20 13:29:18,591 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringSize [2019-09-20 13:29:18,591 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2019-09-20 13:29:18,591 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringUser [2019-09-20 13:29:18,592 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2019-09-20 13:29:18,592 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringPublicKey [2019-09-20 13:29:18,592 INFO L138 BoogieDeclarations]: Found implementation of procedure findPublicKey [2019-09-20 13:29:18,592 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2019-09-20 13:29:18,592 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientForwardReceiver [2019-09-20 13:29:18,592 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientForwardReceiver [2019-09-20 13:29:18,593 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientId [2019-09-20 13:29:18,593 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2019-09-20 13:29:18,593 INFO L138 BoogieDeclarations]: Found implementation of procedure prompt [2019-09-20 13:29:18,593 INFO L138 BoogieDeclarations]: Found implementation of procedure mail [2019-09-20 13:29:18,593 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__AutoResponder [2019-09-20 13:29:18,594 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2019-09-20 13:29:18,594 INFO L138 BoogieDeclarations]: Found implementation of procedure deliver [2019-09-20 13:29:18,594 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Base [2019-09-20 13:29:18,594 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__AddressBook [2019-09-20 13:29:18,594 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming [2019-09-20 13:29:18,595 INFO L138 BoogieDeclarations]: Found implementation of procedure createClient [2019-09-20 13:29:18,595 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2019-09-20 13:29:18,595 INFO L138 BoogieDeclarations]: Found implementation of procedure queue [2019-09-20 13:29:18,595 INFO L138 BoogieDeclarations]: Found implementation of procedure is_queue_empty [2019-09-20 13:29:18,595 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_client [2019-09-20 13:29:18,596 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_email [2019-09-20 13:29:18,596 INFO L138 BoogieDeclarations]: Found implementation of procedure autoRespond [2019-09-20 13:29:18,596 INFO L138 BoogieDeclarations]: Found implementation of procedure sendToAddressBook [2019-09-20 13:29:18,596 INFO L138 BoogieDeclarations]: Found implementation of procedure forward [2019-09-20 13:29:18,596 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__DecryptAutoResponder_spec__1 [2019-09-20 13:29:18,597 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail [2019-09-20 13:29:18,597 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2019-09-20 13:29:18,597 INFO L138 BoogieDeclarations]: Found implementation of procedure cloneEmail [2019-09-20 13:29:18,597 INFO L138 BoogieDeclarations]: Found implementation of procedure createEmail [2019-09-20 13:29:18,598 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-09-20 13:29:18,598 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-09-20 13:29:18,598 INFO L130 BoogieDeclarations]: Found specification of procedure initEmail [2019-09-20 13:29:18,598 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailId [2019-09-20 13:29:18,598 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailId [2019-09-20 13:29:18,599 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2019-09-20 13:29:18,599 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2019-09-20 13:29:18,599 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2019-09-20 13:29:18,599 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2019-09-20 13:29:18,599 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSubject [2019-09-20 13:29:18,600 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSubject [2019-09-20 13:29:18,600 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailBody [2019-09-20 13:29:18,600 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailBody [2019-09-20 13:29:18,600 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2019-09-20 13:29:18,600 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2019-09-20 13:29:18,600 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2019-09-20 13:29:18,601 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2019-09-20 13:29:18,601 INFO L130 BoogieDeclarations]: Found specification of procedure isSigned [2019-09-20 13:29:18,601 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSigned [2019-09-20 13:29:18,601 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSignKey [2019-09-20 13:29:18,601 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSignKey [2019-09-20 13:29:18,602 INFO L130 BoogieDeclarations]: Found specification of procedure isVerified [2019-09-20 13:29:18,602 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSignatureVerified [2019-09-20 13:29:18,602 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-09-20 13:29:18,602 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-09-20 13:29:18,602 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-09-20 13:29:18,603 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-09-20 13:29:18,603 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-09-20 13:29:18,603 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-09-20 13:29:18,603 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-09-20 13:29:18,603 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-09-20 13:29:18,603 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-09-20 13:29:18,604 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-09-20 13:29:18,604 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-09-20 13:29:18,604 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-09-20 13:29:18,604 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-09-20 13:29:18,604 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-09-20 13:29:18,605 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-09-20 13:29:18,605 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-09-20 13:29:18,605 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-09-20 13:29:18,605 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-09-20 13:29:18,605 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-09-20 13:29:18,606 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-09-20 13:29:18,606 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-09-20 13:29:18,606 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-09-20 13:29:18,606 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2019-09-20 13:29:18,606 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookSize [2019-09-20 13:29:18,607 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAlias [2019-09-20 13:29:18,607 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAddress [2019-09-20 13:29:18,607 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAutoResponse [2019-09-20 13:29:18,607 INFO L130 BoogieDeclarations]: Found specification of procedure setClientForwardReceiver [2019-09-20 13:29:18,607 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2019-09-20 13:29:18,608 INFO L130 BoogieDeclarations]: Found specification of procedure is_queue_empty [2019-09-20 13:29:18,608 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_client [2019-09-20 13:29:18,608 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_email [2019-09-20 13:29:18,608 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2019-09-20 13:29:18,608 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2019-09-20 13:29:18,608 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob [2019-09-20 13:29:18,609 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh [2019-09-20 13:29:18,609 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck [2019-09-20 13:29:18,609 INFO L130 BoogieDeclarations]: Found specification of procedure bobToRjh [2019-09-20 13:29:18,609 INFO L130 BoogieDeclarations]: Found specification of procedure rjhToBob [2019-09-20 13:29:18,609 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-09-20 13:29:18,609 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-09-20 13:29:18,609 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-09-20 13:29:18,610 INFO L130 BoogieDeclarations]: Found specification of procedure rjhSetAutoRespond [2019-09-20 13:29:18,610 INFO L130 BoogieDeclarations]: Found specification of procedure bobSetAddressBook [2019-09-20 13:29:18,610 INFO L130 BoogieDeclarations]: Found specification of procedure rjhEnableForwarding [2019-09-20 13:29:18,610 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-09-20 13:29:18,610 INFO L130 BoogieDeclarations]: Found specification of procedure initClient [2019-09-20 13:29:18,610 INFO L130 BoogieDeclarations]: Found specification of procedure getClientName [2019-09-20 13:29:18,610 INFO L130 BoogieDeclarations]: Found specification of procedure setClientName [2019-09-20 13:29:18,610 INFO L130 BoogieDeclarations]: Found specification of procedure getClientOutbuffer [2019-09-20 13:29:18,611 INFO L130 BoogieDeclarations]: Found specification of procedure setClientOutbuffer [2019-09-20 13:29:18,611 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookSize [2019-09-20 13:29:18,611 INFO L130 BoogieDeclarations]: Found specification of procedure createClientAddressBookEntry [2019-09-20 13:29:18,611 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAlias [2019-09-20 13:29:18,611 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAddress [2019-09-20 13:29:18,611 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAutoResponse [2019-09-20 13:29:18,611 INFO L130 BoogieDeclarations]: Found specification of procedure getClientPrivateKey [2019-09-20 13:29:18,611 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2019-09-20 13:29:18,612 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringSize [2019-09-20 13:29:18,612 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2019-09-20 13:29:18,612 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringUser [2019-09-20 13:29:18,612 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2019-09-20 13:29:18,612 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringPublicKey [2019-09-20 13:29:18,612 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2019-09-20 13:29:18,612 INFO L130 BoogieDeclarations]: Found specification of procedure getClientForwardReceiver [2019-09-20 13:29:18,613 INFO L130 BoogieDeclarations]: Found specification of procedure getClientId [2019-09-20 13:29:18,613 INFO L130 BoogieDeclarations]: Found specification of procedure findPublicKey [2019-09-20 13:29:18,613 INFO L130 BoogieDeclarations]: Found specification of procedure findClientAddressBookAlias [2019-09-20 13:29:18,613 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringSize [2019-09-20 13:29:18,613 INFO L130 BoogieDeclarations]: Found specification of procedure prompt [2019-09-20 13:29:18,613 INFO L130 BoogieDeclarations]: Found specification of procedure printMail [2019-09-20 13:29:18,613 INFO L130 BoogieDeclarations]: Found specification of procedure createEmail [2019-09-20 13:29:18,614 INFO L130 BoogieDeclarations]: Found specification of procedure queue [2019-09-20 13:29:18,614 INFO L130 BoogieDeclarations]: Found specification of procedure mail [2019-09-20 13:29:18,614 INFO L130 BoogieDeclarations]: Found specification of procedure deliver [2019-09-20 13:29:18,614 INFO L130 BoogieDeclarations]: Found specification of procedure incoming [2019-09-20 13:29:18,614 INFO L130 BoogieDeclarations]: Found specification of procedure createClient [2019-09-20 13:29:18,614 INFO L130 BoogieDeclarations]: Found specification of procedure autoRespond [2019-09-20 13:29:18,614 INFO L130 BoogieDeclarations]: Found specification of procedure sendToAddressBook [2019-09-20 13:29:18,614 INFO L130 BoogieDeclarations]: Found specification of procedure forward [2019-09-20 13:29:18,615 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__AutoResponder [2019-09-20 13:29:18,615 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Base [2019-09-20 13:29:18,615 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__AddressBook [2019-09-20 13:29:18,615 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__DecryptAutoResponder_spec__1 [2019-09-20 13:29:18,615 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2019-09-20 13:29:18,615 INFO L130 BoogieDeclarations]: Found specification of procedure cloneEmail [2019-09-20 13:29:18,615 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-09-20 13:29:18,616 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-09-20 13:29:18,616 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-09-20 13:29:20,934 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-09-20 13:29:20,935 INFO L283 CfgBuilder]: Removed 4 assume(true) statements. [2019-09-20 13:29:20,937 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 01:29:20 BoogieIcfgContainer [2019-09-20 13:29:20,938 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-09-20 13:29:20,939 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-09-20 13:29:20,939 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-09-20 13:29:20,943 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-09-20 13:29:20,943 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.09 01:29:17" (1/3) ... [2019-09-20 13:29:20,944 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@55ae2d65 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.09 01:29:20, skipping insertion in model container [2019-09-20 13:29:20,945 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:29:18" (2/3) ... [2019-09-20 13:29:20,946 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@55ae2d65 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.09 01:29:20, skipping insertion in model container [2019-09-20 13:29:20,946 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 01:29:20" (3/3) ... [2019-09-20 13:29:20,948 INFO L109 eAbstractionObserver]: Analyzing ICFG email_spec11_product36.cil.c [2019-09-20 13:29:20,961 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-09-20 13:29:20,983 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-09-20 13:29:21,001 INFO L252 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-09-20 13:29:21,042 INFO L377 AbstractCegarLoop]: Interprodecural is true [2019-09-20 13:29:21,042 INFO L378 AbstractCegarLoop]: Hoare is false [2019-09-20 13:29:21,042 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-09-20 13:29:21,042 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-09-20 13:29:21,043 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-09-20 13:29:21,043 INFO L382 AbstractCegarLoop]: Difference is false [2019-09-20 13:29:21,043 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-09-20 13:29:21,043 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-09-20 13:29:21,080 INFO L276 IsEmpty]: Start isEmpty. Operand 353 states. [2019-09-20 13:29:21,118 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2019-09-20 13:29:21,119 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 13:29:21,120 INFO L407 BasicCegarLoop]: trace histogram [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] [2019-09-20 13:29:21,123 INFO L418 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 13:29:21,129 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:29:21,130 INFO L82 PathProgramCache]: Analyzing trace with hash 1244426265, now seen corresponding path program 1 times [2019-09-20 13:29:21,133 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-20 13:29:21,203 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:29:21,204 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:29:21,204 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:29:21,204 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-20 13:29:21,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:29:21,841 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2019-09-20 13:29:21,844 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-20 13:29:21,844 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-09-20 13:29:21,844 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-20 13:29:21,850 INFO L454 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-09-20 13:29:21,865 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-09-20 13:29:21,866 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-09-20 13:29:21,869 INFO L87 Difference]: Start difference. First operand 353 states. Second operand 2 states. [2019-09-20 13:29:21,911 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 13:29:21,911 INFO L93 Difference]: Finished difference Result 343 states and 457 transitions. [2019-09-20 13:29:21,911 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-09-20 13:29:21,913 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 136 [2019-09-20 13:29:21,914 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 13:29:21,933 INFO L225 Difference]: With dead ends: 343 [2019-09-20 13:29:21,933 INFO L226 Difference]: Without dead ends: 334 [2019-09-20 13:29:21,935 INFO L636 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 [2019-09-20 13:29:21,956 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 334 states. [2019-09-20 13:29:22,005 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 334 to 334. [2019-09-20 13:29:22,010 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 334 states. [2019-09-20 13:29:22,020 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 334 states to 334 states and 446 transitions. [2019-09-20 13:29:22,022 INFO L78 Accepts]: Start accepts. Automaton has 334 states and 446 transitions. Word has length 136 [2019-09-20 13:29:22,026 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 13:29:22,026 INFO L475 AbstractCegarLoop]: Abstraction has 334 states and 446 transitions. [2019-09-20 13:29:22,026 INFO L476 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-09-20 13:29:22,027 INFO L276 IsEmpty]: Start isEmpty. Operand 334 states and 446 transitions. [2019-09-20 13:29:22,036 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2019-09-20 13:29:22,037 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 13:29:22,037 INFO L407 BasicCegarLoop]: trace histogram [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] [2019-09-20 13:29:22,037 INFO L418 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 13:29:22,038 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:29:22,038 INFO L82 PathProgramCache]: Analyzing trace with hash -187214702, now seen corresponding path program 1 times [2019-09-20 13:29:22,041 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-20 13:29:22,046 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:29:22,049 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:29:22,049 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:29:22,050 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-20 13:29:22,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:29:22,327 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2019-09-20 13:29:22,327 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-20 13:29:22,328 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-20 13:29:22,328 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-20 13:29:22,330 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-20 13:29:22,331 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-20 13:29:22,332 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-20 13:29:22,332 INFO L87 Difference]: Start difference. First operand 334 states and 446 transitions. Second operand 3 states. [2019-09-20 13:29:22,398 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 13:29:22,398 INFO L93 Difference]: Finished difference Result 337 states and 449 transitions. [2019-09-20 13:29:22,400 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-20 13:29:22,400 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 137 [2019-09-20 13:29:22,401 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 13:29:22,409 INFO L225 Difference]: With dead ends: 337 [2019-09-20 13:29:22,410 INFO L226 Difference]: Without dead ends: 337 [2019-09-20 13:29:22,411 INFO L636 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 [2019-09-20 13:29:22,413 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 337 states. [2019-09-20 13:29:22,450 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 337 to 336. [2019-09-20 13:29:22,451 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 336 states. [2019-09-20 13:29:22,454 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 336 states to 336 states and 448 transitions. [2019-09-20 13:29:22,454 INFO L78 Accepts]: Start accepts. Automaton has 336 states and 448 transitions. Word has length 137 [2019-09-20 13:29:22,455 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 13:29:22,455 INFO L475 AbstractCegarLoop]: Abstraction has 336 states and 448 transitions. [2019-09-20 13:29:22,455 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-20 13:29:22,455 INFO L276 IsEmpty]: Start isEmpty. Operand 336 states and 448 transitions. [2019-09-20 13:29:22,457 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2019-09-20 13:29:22,457 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 13:29:22,457 INFO L407 BasicCegarLoop]: trace histogram [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] [2019-09-20 13:29:22,458 INFO L418 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 13:29:22,458 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:29:22,458 INFO L82 PathProgramCache]: Analyzing trace with hash -1067392320, now seen corresponding path program 1 times [2019-09-20 13:29:22,458 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-20 13:29:22,463 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:29:22,463 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:29:22,463 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:29:22,463 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-20 13:29:22,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:29:22,711 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2019-09-20 13:29:22,713 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-20 13:29:22,713 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-09-20 13:29:22,713 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-20 13:29:22,718 INFO L454 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-09-20 13:29:22,719 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-09-20 13:29:22,719 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-09-20 13:29:22,720 INFO L87 Difference]: Start difference. First operand 336 states and 448 transitions. Second operand 6 states. [2019-09-20 13:29:23,513 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 13:29:23,513 INFO L93 Difference]: Finished difference Result 632 states and 853 transitions. [2019-09-20 13:29:23,514 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-09-20 13:29:23,514 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 142 [2019-09-20 13:29:23,515 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 13:29:23,521 INFO L225 Difference]: With dead ends: 632 [2019-09-20 13:29:23,521 INFO L226 Difference]: Without dead ends: 632 [2019-09-20 13:29:23,522 INFO L636 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 [2019-09-20 13:29:23,525 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 632 states. [2019-09-20 13:29:23,579 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 632 to 623. [2019-09-20 13:29:23,580 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 623 states. [2019-09-20 13:29:23,585 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 623 states to 623 states and 845 transitions. [2019-09-20 13:29:23,585 INFO L78 Accepts]: Start accepts. Automaton has 623 states and 845 transitions. Word has length 142 [2019-09-20 13:29:23,587 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 13:29:23,587 INFO L475 AbstractCegarLoop]: Abstraction has 623 states and 845 transitions. [2019-09-20 13:29:23,588 INFO L476 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-09-20 13:29:23,588 INFO L276 IsEmpty]: Start isEmpty. Operand 623 states and 845 transitions. [2019-09-20 13:29:23,594 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2019-09-20 13:29:23,595 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 13:29:23,595 INFO L407 BasicCegarLoop]: trace histogram [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] [2019-09-20 13:29:23,595 INFO L418 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 13:29:23,595 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:29:23,596 INFO L82 PathProgramCache]: Analyzing trace with hash 1181645416, now seen corresponding path program 1 times [2019-09-20 13:29:23,596 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-20 13:29:23,601 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:29:23,601 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:29:23,602 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:29:23,602 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-20 13:29:23,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:29:23,903 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2019-09-20 13:29:23,904 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-20 13:29:23,904 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-09-20 13:29:23,904 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-20 13:29:23,905 INFO L454 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-09-20 13:29:23,905 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-09-20 13:29:23,905 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-09-20 13:29:23,905 INFO L87 Difference]: Start difference. First operand 623 states and 845 transitions. Second operand 6 states. [2019-09-20 13:29:24,285 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 13:29:24,286 INFO L93 Difference]: Finished difference Result 1216 states and 1659 transitions. [2019-09-20 13:29:24,287 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-09-20 13:29:24,287 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 143 [2019-09-20 13:29:24,288 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 13:29:24,297 INFO L225 Difference]: With dead ends: 1216 [2019-09-20 13:29:24,298 INFO L226 Difference]: Without dead ends: 1216 [2019-09-20 13:29:24,298 INFO L636 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 [2019-09-20 13:29:24,300 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1216 states. [2019-09-20 13:29:24,354 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1216 to 1197. [2019-09-20 13:29:24,354 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1197 states. [2019-09-20 13:29:24,364 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1197 states to 1197 states and 1641 transitions. [2019-09-20 13:29:24,365 INFO L78 Accepts]: Start accepts. Automaton has 1197 states and 1641 transitions. Word has length 143 [2019-09-20 13:29:24,365 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 13:29:24,365 INFO L475 AbstractCegarLoop]: Abstraction has 1197 states and 1641 transitions. [2019-09-20 13:29:24,366 INFO L476 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-09-20 13:29:24,366 INFO L276 IsEmpty]: Start isEmpty. Operand 1197 states and 1641 transitions. [2019-09-20 13:29:24,374 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2019-09-20 13:29:24,374 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 13:29:24,375 INFO L407 BasicCegarLoop]: trace histogram [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] [2019-09-20 13:29:24,375 INFO L418 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 13:29:24,376 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:29:24,376 INFO L82 PathProgramCache]: Analyzing trace with hash -994357308, now seen corresponding path program 1 times [2019-09-20 13:29:24,376 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-20 13:29:24,380 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:29:24,381 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:29:24,381 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:29:24,381 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-20 13:29:24,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:29:24,609 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2019-09-20 13:29:24,613 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-20 13:29:24,613 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-09-20 13:29:24,613 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-20 13:29:24,614 INFO L454 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-09-20 13:29:24,617 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-09-20 13:29:24,618 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-09-20 13:29:24,618 INFO L87 Difference]: Start difference. First operand 1197 states and 1641 transitions. Second operand 6 states. [2019-09-20 13:29:25,086 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 13:29:25,087 INFO L93 Difference]: Finished difference Result 2384 states and 3275 transitions. [2019-09-20 13:29:25,087 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-09-20 13:29:25,087 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 144 [2019-09-20 13:29:25,088 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 13:29:25,102 INFO L225 Difference]: With dead ends: 2384 [2019-09-20 13:29:25,102 INFO L226 Difference]: Without dead ends: 2384 [2019-09-20 13:29:25,102 INFO L636 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 [2019-09-20 13:29:25,105 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2384 states. [2019-09-20 13:29:25,181 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2384 to 2345. [2019-09-20 13:29:25,182 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2345 states. [2019-09-20 13:29:25,195 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2345 states to 2345 states and 3237 transitions. [2019-09-20 13:29:25,195 INFO L78 Accepts]: Start accepts. Automaton has 2345 states and 3237 transitions. Word has length 144 [2019-09-20 13:29:25,196 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 13:29:25,196 INFO L475 AbstractCegarLoop]: Abstraction has 2345 states and 3237 transitions. [2019-09-20 13:29:25,196 INFO L476 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-09-20 13:29:25,196 INFO L276 IsEmpty]: Start isEmpty. Operand 2345 states and 3237 transitions. [2019-09-20 13:29:25,202 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2019-09-20 13:29:25,203 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 13:29:25,203 INFO L407 BasicCegarLoop]: trace histogram [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] [2019-09-20 13:29:25,203 INFO L418 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 13:29:25,203 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:29:25,204 INFO L82 PathProgramCache]: Analyzing trace with hash 358952389, now seen corresponding path program 1 times [2019-09-20 13:29:25,204 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-20 13:29:25,207 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:29:25,208 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:29:25,208 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:29:25,208 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-20 13:29:25,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:29:25,362 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2019-09-20 13:29:25,362 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-20 13:29:25,362 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-09-20 13:29:25,362 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-20 13:29:25,363 INFO L454 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-09-20 13:29:25,363 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-09-20 13:29:25,364 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2019-09-20 13:29:25,364 INFO L87 Difference]: Start difference. First operand 2345 states and 3237 transitions. Second operand 8 states. [2019-09-20 13:29:25,419 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 13:29:25,419 INFO L93 Difference]: Finished difference Result 2342 states and 3227 transitions. [2019-09-20 13:29:25,419 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-09-20 13:29:25,420 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 144 [2019-09-20 13:29:25,421 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 13:29:25,421 INFO L225 Difference]: With dead ends: 2342 [2019-09-20 13:29:25,421 INFO L226 Difference]: Without dead ends: 0 [2019-09-20 13:29:25,422 INFO L636 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2019-09-20 13:29:25,422 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-09-20 13:29:25,422 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-09-20 13:29:25,422 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-09-20 13:29:25,423 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-09-20 13:29:25,423 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 144 [2019-09-20 13:29:25,423 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 13:29:25,423 INFO L475 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-09-20 13:29:25,423 INFO L476 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-09-20 13:29:25,423 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-09-20 13:29:25,424 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-09-20 13:29:25,430 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.09 01:29:25 BoogieIcfgContainer [2019-09-20 13:29:25,430 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-09-20 13:29:25,433 INFO L168 Benchmark]: Toolchain (without parser) took 8164.05 ms. Allocated memory was 133.7 MB in the beginning and 328.7 MB in the end (delta: 195.0 MB). Free memory was 87.2 MB in the beginning and 153.6 MB in the end (delta: -66.4 MB). Peak memory consumption was 128.6 MB. Max. memory is 7.1 GB. [2019-09-20 13:29:25,434 INFO L168 Benchmark]: CDTParser took 0.24 ms. Allocated memory is still 133.7 MB. Free memory was 108.0 MB in the beginning and 107.8 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. [2019-09-20 13:29:25,435 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1022.81 ms. Allocated memory was 133.7 MB in the beginning and 202.4 MB in the end (delta: 68.7 MB). Free memory was 87.0 MB in the beginning and 140.0 MB in the end (delta: -53.0 MB). Peak memory consumption was 31.8 MB. Max. memory is 7.1 GB. [2019-09-20 13:29:25,436 INFO L168 Benchmark]: Boogie Preprocessor took 184.36 ms. Allocated memory is still 202.4 MB. Free memory was 140.0 MB in the beginning and 132.0 MB in the end (delta: 8.0 MB). Peak memory consumption was 8.0 MB. Max. memory is 7.1 GB. [2019-09-20 13:29:25,438 INFO L168 Benchmark]: RCFGBuilder took 2461.07 ms. Allocated memory was 202.4 MB in the beginning and 262.1 MB in the end (delta: 59.8 MB). Free memory was 132.0 MB in the beginning and 195.2 MB in the end (delta: -63.2 MB). Peak memory consumption was 90.5 MB. Max. memory is 7.1 GB. [2019-09-20 13:29:25,439 INFO L168 Benchmark]: TraceAbstraction took 4490.75 ms. Allocated memory was 262.1 MB in the beginning and 328.7 MB in the end (delta: 66.6 MB). Free memory was 193.1 MB in the beginning and 153.6 MB in the end (delta: 39.5 MB). Peak memory consumption was 106.1 MB. Max. memory is 7.1 GB. [2019-09-20 13:29:25,443 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24 ms. Allocated memory is still 133.7 MB. Free memory was 108.0 MB in the beginning and 107.8 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 1022.81 ms. Allocated memory was 133.7 MB in the beginning and 202.4 MB in the end (delta: 68.7 MB). Free memory was 87.0 MB in the beginning and 140.0 MB in the end (delta: -53.0 MB). Peak memory consumption was 31.8 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 184.36 ms. Allocated memory is still 202.4 MB. Free memory was 140.0 MB in the beginning and 132.0 MB in the end (delta: 8.0 MB). Peak memory consumption was 8.0 MB. Max. memory is 7.1 GB. * RCFGBuilder took 2461.07 ms. Allocated memory was 202.4 MB in the beginning and 262.1 MB in the end (delta: 59.8 MB). Free memory was 132.0 MB in the beginning and 195.2 MB in the end (delta: -63.2 MB). Peak memory consumption was 90.5 MB. Max. memory is 7.1 GB. * TraceAbstraction took 4490.75 ms. Allocated memory was 262.1 MB in the beginning and 328.7 MB in the end (delta: 66.6 MB). Free memory was 193.1 MB in the beginning and 153.6 MB in the end (delta: 39.5 MB). Peak memory consumption was 106.1 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 1237]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 97 procedures, 652 locations, 1 error locations. SAFE Result, 4.3s OverallTime, 6 OverallIterations, 3 TraceHistogramMax, 1.9s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 2837 SDtfs, 1216 SDslu, 8317 SDs, 0 SdLazy, 485 SolverSat, 7 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 47 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=2345occurred in iteration=5, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.3s AutomataMinimizationTime, 6 MinimizatonAttempts, 68 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.1s SsaConstructionTime, 0.6s SatisfiabilityAnalysisTime, 0.8s InterpolantComputationTime, 846 NumberOfCodeBlocks, 846 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 840 ConstructedInterpolants, 0 QuantifiedInterpolants, 162530 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 PerfectInterpolantSequences, 104/104 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...