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_spec27_product17.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-112bae1 [2019-09-10 02:40:23,316 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-09-10 02:40:23,318 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-09-10 02:40:23,329 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-09-10 02:40:23,330 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-09-10 02:40:23,331 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-09-10 02:40:23,332 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-09-10 02:40:23,334 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-09-10 02:40:23,336 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-09-10 02:40:23,336 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-09-10 02:40:23,337 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-09-10 02:40:23,339 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-09-10 02:40:23,339 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-09-10 02:40:23,340 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-09-10 02:40:23,341 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-09-10 02:40:23,342 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-09-10 02:40:23,343 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-09-10 02:40:23,344 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-09-10 02:40:23,345 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-09-10 02:40:23,347 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-09-10 02:40:23,349 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-09-10 02:40:23,350 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-09-10 02:40:23,351 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-09-10 02:40:23,351 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-09-10 02:40:23,354 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-09-10 02:40:23,354 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-09-10 02:40:23,354 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-09-10 02:40:23,355 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-09-10 02:40:23,355 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-09-10 02:40:23,356 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-09-10 02:40:23,356 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-09-10 02:40:23,357 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-09-10 02:40:23,358 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-09-10 02:40:23,359 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-09-10 02:40:23,360 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-09-10 02:40:23,360 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-09-10 02:40:23,361 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-09-10 02:40:23,361 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-09-10 02:40:23,361 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-09-10 02:40:23,362 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-09-10 02:40:23,363 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-09-10 02:40:23,363 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 [2019-09-10 02:40:23,378 INFO L113 SettingsManager]: Loading preferences was successful [2019-09-10 02:40:23,378 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-09-10 02:40:23,378 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2019-09-10 02:40:23,378 INFO L138 SettingsManager]: * Log level for plugins=info [2019-09-10 02:40:23,379 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-09-10 02:40:23,379 INFO L138 SettingsManager]: * User list type=DISABLED [2019-09-10 02:40:23,379 INFO L138 SettingsManager]: * Ignore calls to and inside polymorphic procedures=false [2019-09-10 02:40:23,380 INFO L138 SettingsManager]: * Ignore calls to recursive procedures=false [2019-09-10 02:40:23,380 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-09-10 02:40:23,380 INFO L138 SettingsManager]: * Abstract domain=IntervalDomain [2019-09-10 02:40:23,381 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-09-10 02:40:23,381 INFO L138 SettingsManager]: * sizeof long=4 [2019-09-10 02:40:23,381 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-09-10 02:40:23,381 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-09-10 02:40:23,381 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-09-10 02:40:23,382 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-09-10 02:40:23,382 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-09-10 02:40:23,382 INFO L138 SettingsManager]: * sizeof long double=12 [2019-09-10 02:40:23,382 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-09-10 02:40:23,382 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-09-10 02:40:23,383 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-09-10 02:40:23,383 INFO L138 SettingsManager]: * Remove goto edges from RCFG=true [2019-09-10 02:40:23,383 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-09-10 02:40:23,383 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-09-10 02:40:23,383 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-09-10 02:40:23,384 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-09-10 02:40:23,384 INFO L138 SettingsManager]: * Trace refinement strategy=TAIPAN [2019-09-10 02:40:23,384 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-09-10 02:40:23,384 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-09-10 02:40:23,384 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2019-09-10 02:40:23,412 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-09-10 02:40:23,427 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-09-10 02:40:23,431 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-09-10 02:40:23,433 INFO L271 PluginConnector]: Initializing CDTParser... [2019-09-10 02:40:23,433 INFO L275 PluginConnector]: CDTParser initialized [2019-09-10 02:40:23,434 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/email_spec27_product17.cil.c [2019-09-10 02:40:23,505 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fdb66e7a6/58fd271de2be4cd7ac5ba39575918bf4/FLAGe5157c4be [2019-09-10 02:40:24,096 INFO L306 CDTParser]: Found 1 translation units. [2019-09-10 02:40:24,097 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/email_spec27_product17.cil.c [2019-09-10 02:40:24,124 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fdb66e7a6/58fd271de2be4cd7ac5ba39575918bf4/FLAGe5157c4be [2019-09-10 02:40:24,307 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fdb66e7a6/58fd271de2be4cd7ac5ba39575918bf4 [2019-09-10 02:40:24,315 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-09-10 02:40:24,317 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-09-10 02:40:24,318 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-09-10 02:40:24,318 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-09-10 02:40:24,322 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-09-10 02:40:24,323 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.09 02:40:24" (1/1) ... [2019-09-10 02:40:24,326 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@204050a7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 02:40:24, skipping insertion in model container [2019-09-10 02:40:24,326 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.09 02:40:24" (1/1) ... [2019-09-10 02:40:24,333 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-09-10 02:40:24,412 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-09-10 02:40:25,110 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-10 02:40:25,132 INFO L188 MainTranslator]: Completed pre-run [2019-09-10 02:40:25,305 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-10 02:40:25,391 INFO L192 MainTranslator]: Completed translation [2019-09-10 02:40:25,392 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 02:40:25 WrapperNode [2019-09-10 02:40:25,392 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-09-10 02:40:25,393 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-09-10 02:40:25,393 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-09-10 02:40:25,393 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-09-10 02:40:25,407 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 02:40:25" (1/1) ... [2019-09-10 02:40:25,407 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 02:40:25" (1/1) ... [2019-09-10 02:40:25,439 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 02:40:25" (1/1) ... [2019-09-10 02:40:25,440 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 02:40:25" (1/1) ... [2019-09-10 02:40:25,518 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 02:40:25" (1/1) ... [2019-09-10 02:40:25,559 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 02:40:25" (1/1) ... [2019-09-10 02:40:25,584 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 02:40:25" (1/1) ... [2019-09-10 02:40:25,605 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-09-10 02:40:25,606 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-09-10 02:40:25,606 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-09-10 02:40:25,606 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-09-10 02:40:25,608 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 02:40:25" (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 [2019-09-10 02:40:25,694 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-09-10 02:40:25,694 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-09-10 02:40:25,694 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-09-10 02:40:25,694 INFO L138 BoogieDeclarations]: Found implementation of procedure mail [2019-09-10 02:40:25,695 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__Keys [2019-09-10 02:40:25,695 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__AddressBook [2019-09-10 02:40:25,695 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2019-09-10 02:40:25,695 INFO L138 BoogieDeclarations]: Found implementation of procedure deliver [2019-09-10 02:40:25,695 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Sign [2019-09-10 02:40:25,696 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming [2019-09-10 02:40:25,696 INFO L138 BoogieDeclarations]: Found implementation of procedure createClient [2019-09-10 02:40:25,697 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2019-09-10 02:40:25,697 INFO L138 BoogieDeclarations]: Found implementation of procedure queue [2019-09-10 02:40:25,698 INFO L138 BoogieDeclarations]: Found implementation of procedure is_queue_empty [2019-09-10 02:40:25,698 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_client [2019-09-10 02:40:25,699 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_email [2019-09-10 02:40:25,699 INFO L138 BoogieDeclarations]: Found implementation of procedure isKeyPairValid [2019-09-10 02:40:25,699 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2019-09-10 02:40:25,700 INFO L138 BoogieDeclarations]: Found implementation of procedure sendToAddressBook [2019-09-10 02:40:25,700 INFO L138 BoogieDeclarations]: Found implementation of procedure sign [2019-09-10 02:40:25,700 INFO L138 BoogieDeclarations]: Found implementation of procedure verify [2019-09-10 02:40:25,700 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob__wrappee__Base [2019-09-10 02:40:25,700 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob [2019-09-10 02:40:25,701 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh__wrappee__Base [2019-09-10 02:40:25,701 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh [2019-09-10 02:40:25,702 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck__wrappee__Base [2019-09-10 02:40:25,702 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck [2019-09-10 02:40:25,702 INFO L138 BoogieDeclarations]: Found implementation of procedure bobToRjh [2019-09-10 02:40:25,702 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhToBob [2019-09-10 02:40:25,703 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-09-10 02:40:25,703 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-09-10 02:40:25,703 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAdd [2019-09-10 02:40:25,703 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAdd [2019-09-10 02:40:25,704 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAddChuck [2019-09-10 02:40:25,704 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAddChuck [2019-09-10 02:40:25,704 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2019-09-10 02:40:25,704 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAddRjh [2019-09-10 02:40:25,704 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhDeletePrivateKey [2019-09-10 02:40:25,705 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyChange [2019-09-10 02:40:25,705 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyChange [2019-09-10 02:40:25,705 INFO L138 BoogieDeclarations]: Found implementation of procedure bobSetAddressBook [2019-09-10 02:40:25,705 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__VerifyForward_spec__1 [2019-09-10 02:40:25,706 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-09-10 02:40:25,706 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-09-10 02:40:25,706 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-09-10 02:40:25,706 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-09-10 02:40:25,706 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-09-10 02:40:25,707 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-09-10 02:40:25,707 INFO L138 BoogieDeclarations]: Found implementation of procedure prompt [2019-09-10 02:40:25,707 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-09-10 02:40:25,707 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-09-10 02:40:25,708 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-09-10 02:40:25,708 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-09-10 02:40:25,708 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-09-10 02:40:25,708 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-09-10 02:40:25,708 INFO L138 BoogieDeclarations]: Found implementation of procedure initClient [2019-09-10 02:40:25,708 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientName [2019-09-10 02:40:25,709 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientName [2019-09-10 02:40:25,709 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientOutbuffer [2019-09-10 02:40:25,709 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientOutbuffer [2019-09-10 02:40:25,709 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookSize [2019-09-10 02:40:25,709 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookSize [2019-09-10 02:40:25,709 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientAddressBookEntry [2019-09-10 02:40:25,710 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAlias [2019-09-10 02:40:25,710 INFO L138 BoogieDeclarations]: Found implementation of procedure findClientAddressBookAlias [2019-09-10 02:40:25,710 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAlias [2019-09-10 02:40:25,710 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAddress [2019-09-10 02:40:25,711 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAddress [2019-09-10 02:40:25,711 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAutoResponse [2019-09-10 02:40:25,711 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAutoResponse [2019-09-10 02:40:25,711 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientPrivateKey [2019-09-10 02:40:25,711 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2019-09-10 02:40:25,711 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringSize [2019-09-10 02:40:25,712 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringSize [2019-09-10 02:40:25,712 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2019-09-10 02:40:25,713 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringUser [2019-09-10 02:40:25,713 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2019-09-10 02:40:25,713 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringPublicKey [2019-09-10 02:40:25,713 INFO L138 BoogieDeclarations]: Found implementation of procedure findPublicKey [2019-09-10 02:40:25,714 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2019-09-10 02:40:25,714 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientForwardReceiver [2019-09-10 02:40:25,714 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientForwardReceiver [2019-09-10 02:40:25,714 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientId [2019-09-10 02:40:25,714 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2019-09-10 02:40:25,714 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__AddressBook [2019-09-10 02:40:25,715 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__Sign [2019-09-10 02:40:25,716 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail [2019-09-10 02:40:25,716 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2019-09-10 02:40:25,716 INFO L138 BoogieDeclarations]: Found implementation of procedure cloneEmail [2019-09-10 02:40:25,717 INFO L138 BoogieDeclarations]: Found implementation of procedure createEmail [2019-09-10 02:40:25,717 INFO L138 BoogieDeclarations]: Found implementation of procedure initEmail [2019-09-10 02:40:25,717 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailId [2019-09-10 02:40:25,717 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailId [2019-09-10 02:40:25,717 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2019-09-10 02:40:25,717 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2019-09-10 02:40:25,717 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2019-09-10 02:40:25,718 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2019-09-10 02:40:25,718 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSubject [2019-09-10 02:40:25,718 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSubject [2019-09-10 02:40:25,718 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailBody [2019-09-10 02:40:25,718 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailBody [2019-09-10 02:40:25,718 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2019-09-10 02:40:25,718 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2019-09-10 02:40:25,719 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2019-09-10 02:40:25,719 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2019-09-10 02:40:25,719 INFO L138 BoogieDeclarations]: Found implementation of procedure isSigned [2019-09-10 02:40:25,719 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSigned [2019-09-10 02:40:25,719 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSignKey [2019-09-10 02:40:25,719 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSignKey [2019-09-10 02:40:25,719 INFO L138 BoogieDeclarations]: Found implementation of procedure isVerified [2019-09-10 02:40:25,720 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSignatureVerified [2019-09-10 02:40:25,720 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-09-10 02:40:25,720 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-09-10 02:40:25,720 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-09-10 02:40:25,720 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2019-09-10 02:40:25,720 INFO L130 BoogieDeclarations]: Found specification of procedure initClient [2019-09-10 02:40:25,721 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookSize [2019-09-10 02:40:25,721 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAddress [2019-09-10 02:40:25,722 INFO L130 BoogieDeclarations]: Found specification of procedure getClientPrivateKey [2019-09-10 02:40:25,722 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2019-09-10 02:40:25,723 INFO L130 BoogieDeclarations]: Found specification of procedure getClientId [2019-09-10 02:40:25,723 INFO L130 BoogieDeclarations]: Found specification of procedure findPublicKey [2019-09-10 02:40:25,723 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2019-09-10 02:40:25,724 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2019-09-10 02:40:25,724 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2019-09-10 02:40:25,724 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2019-09-10 02:40:25,724 INFO L130 BoogieDeclarations]: Found specification of procedure isSigned [2019-09-10 02:40:25,724 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSigned [2019-09-10 02:40:25,725 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSignKey [2019-09-10 02:40:25,725 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSignKey [2019-09-10 02:40:25,725 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSignatureVerified [2019-09-10 02:40:25,725 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2019-09-10 02:40:25,726 INFO L130 BoogieDeclarations]: Found specification of procedure createEmail [2019-09-10 02:40:25,726 INFO L130 BoogieDeclarations]: Found specification of procedure queue [2019-09-10 02:40:25,726 INFO L130 BoogieDeclarations]: Found specification of procedure is_queue_empty [2019-09-10 02:40:25,726 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_client [2019-09-10 02:40:25,727 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_email [2019-09-10 02:40:25,727 INFO L130 BoogieDeclarations]: Found specification of procedure mail [2019-09-10 02:40:25,728 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2019-09-10 02:40:25,731 INFO L130 BoogieDeclarations]: Found specification of procedure deliver [2019-09-10 02:40:25,732 INFO L130 BoogieDeclarations]: Found specification of procedure incoming [2019-09-10 02:40:25,732 INFO L130 BoogieDeclarations]: Found specification of procedure createClient [2019-09-10 02:40:25,732 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2019-09-10 02:40:25,739 INFO L130 BoogieDeclarations]: Found specification of procedure isKeyPairValid [2019-09-10 02:40:25,739 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2019-09-10 02:40:25,740 INFO L130 BoogieDeclarations]: Found specification of procedure sendToAddressBook [2019-09-10 02:40:25,740 INFO L130 BoogieDeclarations]: Found specification of procedure sign [2019-09-10 02:40:25,740 INFO L130 BoogieDeclarations]: Found specification of procedure verify [2019-09-10 02:40:25,740 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-09-10 02:40:25,740 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__Keys [2019-09-10 02:40:25,740 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__AddressBook [2019-09-10 02:40:25,740 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__VerifyForward_spec__1 [2019-09-10 02:40:25,741 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Sign [2019-09-10 02:40:25,741 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookSize [2019-09-10 02:40:25,741 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAlias [2019-09-10 02:40:25,741 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAddress [2019-09-10 02:40:25,742 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2019-09-10 02:40:25,742 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringUser [2019-09-10 02:40:25,742 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2019-09-10 02:40:25,742 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringPublicKey [2019-09-10 02:40:25,742 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2019-09-10 02:40:25,743 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2019-09-10 02:40:25,743 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-09-10 02:40:25,743 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-09-10 02:40:25,743 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-09-10 02:40:25,743 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob [2019-09-10 02:40:25,743 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh [2019-09-10 02:40:25,743 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck [2019-09-10 02:40:25,744 INFO L130 BoogieDeclarations]: Found specification of procedure bobToRjh [2019-09-10 02:40:25,744 INFO L130 BoogieDeclarations]: Found specification of procedure rjhToBob [2019-09-10 02:40:25,744 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-09-10 02:40:25,744 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-09-10 02:40:25,744 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-09-10 02:40:25,744 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAdd [2019-09-10 02:40:25,744 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAddChuck [2019-09-10 02:40:25,745 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAdd [2019-09-10 02:40:25,745 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAddChuck [2019-09-10 02:40:25,745 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2019-09-10 02:40:25,745 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyChange [2019-09-10 02:40:25,745 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyChange [2019-09-10 02:40:25,745 INFO L130 BoogieDeclarations]: Found specification of procedure rjhDeletePrivateKey [2019-09-10 02:40:25,745 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAddRjh [2019-09-10 02:40:25,746 INFO L130 BoogieDeclarations]: Found specification of procedure bobSetAddressBook [2019-09-10 02:40:25,746 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob__wrappee__Base [2019-09-10 02:40:25,746 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh__wrappee__Base [2019-09-10 02:40:25,746 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck__wrappee__Base [2019-09-10 02:40:25,746 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-09-10 02:40:25,746 INFO L130 BoogieDeclarations]: Found specification of procedure isVerified [2019-09-10 02:40:25,746 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-09-10 02:40:25,746 INFO L130 BoogieDeclarations]: Found specification of procedure prompt [2019-09-10 02:40:25,747 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-09-10 02:40:25,747 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-09-10 02:40:25,747 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-09-10 02:40:25,747 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-09-10 02:40:25,747 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-09-10 02:40:25,747 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-09-10 02:40:25,747 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-09-10 02:40:25,748 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-09-10 02:40:25,748 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-09-10 02:40:25,748 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-09-10 02:40:25,748 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-09-10 02:40:25,748 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-09-10 02:40:25,748 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-09-10 02:40:25,748 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-09-10 02:40:25,748 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-09-10 02:40:25,749 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-09-10 02:40:25,749 INFO L130 BoogieDeclarations]: Found specification of procedure getClientName [2019-09-10 02:40:25,749 INFO L130 BoogieDeclarations]: Found specification of procedure setClientName [2019-09-10 02:40:25,749 INFO L130 BoogieDeclarations]: Found specification of procedure getClientOutbuffer [2019-09-10 02:40:25,749 INFO L130 BoogieDeclarations]: Found specification of procedure setClientOutbuffer [2019-09-10 02:40:25,749 INFO L130 BoogieDeclarations]: Found specification of procedure createClientAddressBookEntry [2019-09-10 02:40:25,749 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAlias [2019-09-10 02:40:25,750 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAutoResponse [2019-09-10 02:40:25,750 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAutoResponse [2019-09-10 02:40:25,750 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringSize [2019-09-10 02:40:25,750 INFO L130 BoogieDeclarations]: Found specification of procedure getClientForwardReceiver [2019-09-10 02:40:25,750 INFO L130 BoogieDeclarations]: Found specification of procedure setClientForwardReceiver [2019-09-10 02:40:25,750 INFO L130 BoogieDeclarations]: Found specification of procedure findClientAddressBookAlias [2019-09-10 02:40:25,750 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringSize [2019-09-10 02:40:25,750 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailId [2019-09-10 02:40:25,751 INFO L130 BoogieDeclarations]: Found specification of procedure printMail [2019-09-10 02:40:25,751 INFO L130 BoogieDeclarations]: Found specification of procedure cloneEmail [2019-09-10 02:40:25,751 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__AddressBook [2019-09-10 02:40:25,751 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__Sign [2019-09-10 02:40:25,751 INFO L130 BoogieDeclarations]: Found specification of procedure initEmail [2019-09-10 02:40:25,751 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailId [2019-09-10 02:40:25,751 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSubject [2019-09-10 02:40:25,752 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSubject [2019-09-10 02:40:25,752 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailBody [2019-09-10 02:40:25,752 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailBody [2019-09-10 02:40:25,752 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2019-09-10 02:40:25,752 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2019-09-10 02:40:25,752 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2019-09-10 02:40:25,752 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2019-09-10 02:40:25,752 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-09-10 02:40:25,753 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-09-10 02:40:25,753 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-09-10 02:40:27,698 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-09-10 02:40:27,698 INFO L283 CfgBuilder]: Removed 4 assume(true) statements. [2019-09-10 02:40:27,700 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.09 02:40:27 BoogieIcfgContainer [2019-09-10 02:40:27,700 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-09-10 02:40:27,701 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-09-10 02:40:27,702 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-09-10 02:40:27,705 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-09-10 02:40:27,705 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.09 02:40:24" (1/3) ... [2019-09-10 02:40:27,706 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4b5367a7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.09 02:40:27, skipping insertion in model container [2019-09-10 02:40:27,706 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 02:40:25" (2/3) ... [2019-09-10 02:40:27,707 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4b5367a7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.09 02:40:27, skipping insertion in model container [2019-09-10 02:40:27,707 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.09 02:40:27" (3/3) ... [2019-09-10 02:40:27,709 INFO L109 eAbstractionObserver]: Analyzing ICFG email_spec27_product17.cil.c [2019-09-10 02:40:27,719 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-09-10 02:40:27,729 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-09-10 02:40:27,745 INFO L252 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-09-10 02:40:27,778 INFO L377 AbstractCegarLoop]: Interprodecural is true [2019-09-10 02:40:27,778 INFO L378 AbstractCegarLoop]: Hoare is false [2019-09-10 02:40:27,778 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-09-10 02:40:27,778 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-09-10 02:40:27,778 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-09-10 02:40:27,779 INFO L382 AbstractCegarLoop]: Difference is false [2019-09-10 02:40:27,779 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-09-10 02:40:27,779 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-09-10 02:40:27,815 INFO L276 IsEmpty]: Start isEmpty. Operand 542 states. [2019-09-10 02:40:27,855 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 187 [2019-09-10 02:40:27,855 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 02:40:27,858 INFO L399 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-10 02:40:27,863 INFO L418 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 02:40:27,872 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 02:40:27,873 INFO L82 PathProgramCache]: Analyzing trace with hash 1817645931, now seen corresponding path program 1 times [2019-09-10 02:40:27,875 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 02:40:27,921 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:40:27,921 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 02:40:27,922 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:40:27,922 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 02:40:28,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 02:40:28,448 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2019-09-10 02:40:28,451 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 02:40:28,451 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-09-10 02:40:28,451 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 02:40:28,457 INFO L454 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-09-10 02:40:28,471 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-09-10 02:40:28,472 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-09-10 02:40:28,474 INFO L87 Difference]: Start difference. First operand 542 states. Second operand 2 states. [2019-09-10 02:40:28,531 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 02:40:28,532 INFO L93 Difference]: Finished difference Result 505 states and 692 transitions. [2019-09-10 02:40:28,532 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-09-10 02:40:28,533 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 186 [2019-09-10 02:40:28,534 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 02:40:28,556 INFO L225 Difference]: With dead ends: 505 [2019-09-10 02:40:28,557 INFO L226 Difference]: Without dead ends: 496 [2019-09-10 02:40:28,558 INFO L628 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 [2019-09-10 02:40:28,577 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 496 states. [2019-09-10 02:40:28,637 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 496 to 496. [2019-09-10 02:40:28,639 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 496 states. [2019-09-10 02:40:28,645 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 496 states to 496 states and 681 transitions. [2019-09-10 02:40:28,646 INFO L78 Accepts]: Start accepts. Automaton has 496 states and 681 transitions. Word has length 186 [2019-09-10 02:40:28,648 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 02:40:28,648 INFO L475 AbstractCegarLoop]: Abstraction has 496 states and 681 transitions. [2019-09-10 02:40:28,648 INFO L476 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-09-10 02:40:28,649 INFO L276 IsEmpty]: Start isEmpty. Operand 496 states and 681 transitions. [2019-09-10 02:40:28,654 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 188 [2019-09-10 02:40:28,654 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 02:40:28,654 INFO L399 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-10 02:40:28,655 INFO L418 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 02:40:28,655 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 02:40:28,655 INFO L82 PathProgramCache]: Analyzing trace with hash -1884483805, now seen corresponding path program 1 times [2019-09-10 02:40:28,655 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 02:40:28,656 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:40:28,657 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 02:40:28,657 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:40:28,657 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 02:40:28,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 02:40:28,841 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2019-09-10 02:40:28,841 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 02:40:28,841 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-10 02:40:28,842 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 02:40:28,844 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-10 02:40:28,844 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-10 02:40:28,844 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-10 02:40:28,844 INFO L87 Difference]: Start difference. First operand 496 states and 681 transitions. Second operand 3 states. [2019-09-10 02:40:28,919 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 02:40:28,919 INFO L93 Difference]: Finished difference Result 499 states and 684 transitions. [2019-09-10 02:40:28,920 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-10 02:40:28,920 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 187 [2019-09-10 02:40:28,921 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 02:40:28,925 INFO L225 Difference]: With dead ends: 499 [2019-09-10 02:40:28,925 INFO L226 Difference]: Without dead ends: 499 [2019-09-10 02:40:28,926 INFO L628 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 [2019-09-10 02:40:28,928 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 499 states. [2019-09-10 02:40:28,960 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 499 to 498. [2019-09-10 02:40:28,960 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 498 states. [2019-09-10 02:40:28,964 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 498 states to 498 states and 683 transitions. [2019-09-10 02:40:28,964 INFO L78 Accepts]: Start accepts. Automaton has 498 states and 683 transitions. Word has length 187 [2019-09-10 02:40:28,965 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 02:40:28,965 INFO L475 AbstractCegarLoop]: Abstraction has 498 states and 683 transitions. [2019-09-10 02:40:28,965 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-10 02:40:28,965 INFO L276 IsEmpty]: Start isEmpty. Operand 498 states and 683 transitions. [2019-09-10 02:40:28,969 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 194 [2019-09-10 02:40:28,969 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 02:40:28,970 INFO L399 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-10 02:40:28,970 INFO L418 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 02:40:28,970 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 02:40:28,970 INFO L82 PathProgramCache]: Analyzing trace with hash 1131294487, now seen corresponding path program 1 times [2019-09-10 02:40:28,970 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 02:40:28,971 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:40:28,971 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 02:40:28,972 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:40:28,972 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 02:40:29,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 02:40:29,200 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2019-09-10 02:40:29,201 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 02:40:29,201 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-10 02:40:29,201 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 02:40:29,203 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-10 02:40:29,204 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-10 02:40:29,205 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-10 02:40:29,205 INFO L87 Difference]: Start difference. First operand 498 states and 683 transitions. Second operand 3 states. [2019-09-10 02:40:29,242 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 02:40:29,242 INFO L93 Difference]: Finished difference Result 539 states and 753 transitions. [2019-09-10 02:40:29,242 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-10 02:40:29,243 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 193 [2019-09-10 02:40:29,244 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 02:40:29,249 INFO L225 Difference]: With dead ends: 539 [2019-09-10 02:40:29,250 INFO L226 Difference]: Without dead ends: 539 [2019-09-10 02:40:29,250 INFO L628 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 [2019-09-10 02:40:29,251 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 539 states. [2019-09-10 02:40:29,283 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 539 to 538. [2019-09-10 02:40:29,283 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 538 states. [2019-09-10 02:40:29,289 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 538 states to 538 states and 752 transitions. [2019-09-10 02:40:29,289 INFO L78 Accepts]: Start accepts. Automaton has 538 states and 752 transitions. Word has length 193 [2019-09-10 02:40:29,291 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 02:40:29,291 INFO L475 AbstractCegarLoop]: Abstraction has 538 states and 752 transitions. [2019-09-10 02:40:29,291 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-10 02:40:29,292 INFO L276 IsEmpty]: Start isEmpty. Operand 538 states and 752 transitions. [2019-09-10 02:40:29,299 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 195 [2019-09-10 02:40:29,299 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 02:40:29,300 INFO L399 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-10 02:40:29,300 INFO L418 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 02:40:29,300 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 02:40:29,301 INFO L82 PathProgramCache]: Analyzing trace with hash 956987201, now seen corresponding path program 1 times [2019-09-10 02:40:29,301 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 02:40:29,302 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:40:29,302 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 02:40:29,302 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:40:29,302 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 02:40:29,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 02:40:29,559 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2019-09-10 02:40:29,559 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 02:40:29,559 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-09-10 02:40:29,559 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 02:40:29,561 INFO L454 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-09-10 02:40:29,561 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-09-10 02:40:29,561 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2019-09-10 02:40:29,561 INFO L87 Difference]: Start difference. First operand 538 states and 752 transitions. Second operand 8 states. [2019-09-10 02:40:29,631 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 02:40:29,631 INFO L93 Difference]: Finished difference Result 538 states and 751 transitions. [2019-09-10 02:40:29,631 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-09-10 02:40:29,632 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 194 [2019-09-10 02:40:29,634 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 02:40:29,639 INFO L225 Difference]: With dead ends: 538 [2019-09-10 02:40:29,640 INFO L226 Difference]: Without dead ends: 538 [2019-09-10 02:40:29,641 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2019-09-10 02:40:29,643 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 538 states. [2019-09-10 02:40:29,660 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 538 to 538. [2019-09-10 02:40:29,660 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 538 states. [2019-09-10 02:40:29,665 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 538 states to 538 states and 751 transitions. [2019-09-10 02:40:29,666 INFO L78 Accepts]: Start accepts. Automaton has 538 states and 751 transitions. Word has length 194 [2019-09-10 02:40:29,666 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 02:40:29,666 INFO L475 AbstractCegarLoop]: Abstraction has 538 states and 751 transitions. [2019-09-10 02:40:29,667 INFO L476 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-09-10 02:40:29,667 INFO L276 IsEmpty]: Start isEmpty. Operand 538 states and 751 transitions. [2019-09-10 02:40:29,671 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 202 [2019-09-10 02:40:29,672 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 02:40:29,672 INFO L399 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-10 02:40:29,672 INFO L418 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 02:40:29,673 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 02:40:29,673 INFO L82 PathProgramCache]: Analyzing trace with hash 1401373072, now seen corresponding path program 1 times [2019-09-10 02:40:29,673 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 02:40:29,674 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:40:29,674 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 02:40:29,674 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:40:29,675 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 02:40:29,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 02:40:29,973 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2019-09-10 02:40:29,973 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 02:40:29,974 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-09-10 02:40:29,974 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 02:40:29,975 INFO L454 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-09-10 02:40:29,975 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-09-10 02:40:29,976 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-09-10 02:40:29,976 INFO L87 Difference]: Start difference. First operand 538 states and 751 transitions. Second operand 7 states. [2019-09-10 02:40:32,505 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 02:40:32,505 INFO L93 Difference]: Finished difference Result 785 states and 1077 transitions. [2019-09-10 02:40:32,505 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2019-09-10 02:40:32,506 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 201 [2019-09-10 02:40:32,506 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 02:40:32,511 INFO L225 Difference]: With dead ends: 785 [2019-09-10 02:40:32,512 INFO L226 Difference]: Without dead ends: 781 [2019-09-10 02:40:32,512 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=43, Invalid=113, Unknown=0, NotChecked=0, Total=156 [2019-09-10 02:40:32,514 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 781 states. [2019-09-10 02:40:32,537 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 781 to 772. [2019-09-10 02:40:32,538 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 772 states. [2019-09-10 02:40:32,542 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 772 states to 772 states and 1061 transitions. [2019-09-10 02:40:32,543 INFO L78 Accepts]: Start accepts. Automaton has 772 states and 1061 transitions. Word has length 201 [2019-09-10 02:40:32,544 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 02:40:32,544 INFO L475 AbstractCegarLoop]: Abstraction has 772 states and 1061 transitions. [2019-09-10 02:40:32,545 INFO L476 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-09-10 02:40:32,545 INFO L276 IsEmpty]: Start isEmpty. Operand 772 states and 1061 transitions. [2019-09-10 02:40:32,548 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 203 [2019-09-10 02:40:32,548 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 02:40:32,549 INFO L399 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-10 02:40:32,549 INFO L418 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 02:40:32,549 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 02:40:32,549 INFO L82 PathProgramCache]: Analyzing trace with hash 1299605141, now seen corresponding path program 1 times [2019-09-10 02:40:32,549 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 02:40:32,550 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:40:32,551 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 02:40:32,551 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:40:32,551 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 02:40:32,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 02:40:32,992 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2019-09-10 02:40:32,992 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 02:40:32,992 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [24] imperfect sequences [] total 24 [2019-09-10 02:40:32,993 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 02:40:32,993 INFO L454 AbstractCegarLoop]: Interpolant automaton has 24 states [2019-09-10 02:40:32,993 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2019-09-10 02:40:32,994 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=507, Unknown=0, NotChecked=0, Total=552 [2019-09-10 02:40:32,994 INFO L87 Difference]: Start difference. First operand 772 states and 1061 transitions. Second operand 24 states. [2019-09-10 02:40:33,653 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 02:40:33,653 INFO L93 Difference]: Finished difference Result 887 states and 1209 transitions. [2019-09-10 02:40:33,653 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2019-09-10 02:40:33,654 INFO L78 Accepts]: Start accepts. Automaton has 24 states. Word has length 202 [2019-09-10 02:40:33,654 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 02:40:33,659 INFO L225 Difference]: With dead ends: 887 [2019-09-10 02:40:33,659 INFO L226 Difference]: Without dead ends: 879 [2019-09-10 02:40:33,660 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=85, Invalid=1037, Unknown=0, NotChecked=0, Total=1122 [2019-09-10 02:40:33,662 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 879 states. [2019-09-10 02:40:33,685 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 879 to 874. [2019-09-10 02:40:33,685 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 874 states. [2019-09-10 02:40:33,691 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 874 states to 874 states and 1190 transitions. [2019-09-10 02:40:33,691 INFO L78 Accepts]: Start accepts. Automaton has 874 states and 1190 transitions. Word has length 202 [2019-09-10 02:40:33,691 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 02:40:33,692 INFO L475 AbstractCegarLoop]: Abstraction has 874 states and 1190 transitions. [2019-09-10 02:40:33,692 INFO L476 AbstractCegarLoop]: Interpolant automaton has 24 states. [2019-09-10 02:40:33,692 INFO L276 IsEmpty]: Start isEmpty. Operand 874 states and 1190 transitions. [2019-09-10 02:40:33,696 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 234 [2019-09-10 02:40:33,696 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 02:40:33,696 INFO L399 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-10 02:40:33,696 INFO L418 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 02:40:33,697 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 02:40:33,697 INFO L82 PathProgramCache]: Analyzing trace with hash 1826249361, now seen corresponding path program 1 times [2019-09-10 02:40:33,697 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 02:40:33,698 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:40:33,698 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 02:40:33,698 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:40:33,698 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 02:40:33,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 02:40:33,898 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2019-09-10 02:40:33,899 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 02:40:33,899 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-09-10 02:40:33,899 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 02:40:33,900 INFO L454 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-09-10 02:40:33,900 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-09-10 02:40:33,900 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2019-09-10 02:40:33,900 INFO L87 Difference]: Start difference. First operand 874 states and 1190 transitions. Second operand 8 states. [2019-09-10 02:40:38,409 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 02:40:38,409 INFO L93 Difference]: Finished difference Result 2036 states and 2768 transitions. [2019-09-10 02:40:38,409 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2019-09-10 02:40:38,409 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 233 [2019-09-10 02:40:38,410 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 02:40:38,423 INFO L225 Difference]: With dead ends: 2036 [2019-09-10 02:40:38,423 INFO L226 Difference]: Without dead ends: 2036 [2019-09-10 02:40:38,424 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 44 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=75, Invalid=267, Unknown=0, NotChecked=0, Total=342 [2019-09-10 02:40:38,427 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2036 states. [2019-09-10 02:40:38,488 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2036 to 2024. [2019-09-10 02:40:38,488 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2024 states. [2019-09-10 02:40:38,499 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2024 states to 2024 states and 2758 transitions. [2019-09-10 02:40:38,500 INFO L78 Accepts]: Start accepts. Automaton has 2024 states and 2758 transitions. Word has length 233 [2019-09-10 02:40:38,500 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 02:40:38,500 INFO L475 AbstractCegarLoop]: Abstraction has 2024 states and 2758 transitions. [2019-09-10 02:40:38,500 INFO L476 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-09-10 02:40:38,501 INFO L276 IsEmpty]: Start isEmpty. Operand 2024 states and 2758 transitions. [2019-09-10 02:40:38,507 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 235 [2019-09-10 02:40:38,507 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 02:40:38,507 INFO L399 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-10 02:40:38,508 INFO L418 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 02:40:38,508 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 02:40:38,509 INFO L82 PathProgramCache]: Analyzing trace with hash -1547017909, now seen corresponding path program 1 times [2019-09-10 02:40:38,509 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 02:40:38,510 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:40:38,510 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 02:40:38,510 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:40:38,511 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 02:40:38,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 02:40:38,908 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2019-09-10 02:40:38,908 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 02:40:38,909 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [20] imperfect sequences [] total 20 [2019-09-10 02:40:38,909 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 02:40:38,909 INFO L454 AbstractCegarLoop]: Interpolant automaton has 20 states [2019-09-10 02:40:38,910 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2019-09-10 02:40:38,910 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=343, Unknown=0, NotChecked=0, Total=380 [2019-09-10 02:40:38,910 INFO L87 Difference]: Start difference. First operand 2024 states and 2758 transitions. Second operand 20 states. [2019-09-10 02:40:39,491 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 02:40:39,491 INFO L93 Difference]: Finished difference Result 1752 states and 2383 transitions. [2019-09-10 02:40:39,492 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2019-09-10 02:40:39,492 INFO L78 Accepts]: Start accepts. Automaton has 20 states. Word has length 234 [2019-09-10 02:40:39,493 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 02:40:39,502 INFO L225 Difference]: With dead ends: 1752 [2019-09-10 02:40:39,503 INFO L226 Difference]: Without dead ends: 1752 [2019-09-10 02:40:39,503 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=69, Invalid=687, Unknown=0, NotChecked=0, Total=756 [2019-09-10 02:40:39,506 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1752 states. [2019-09-10 02:40:39,550 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1752 to 1742. [2019-09-10 02:40:39,550 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1742 states. [2019-09-10 02:40:39,560 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1742 states to 1742 states and 2369 transitions. [2019-09-10 02:40:39,560 INFO L78 Accepts]: Start accepts. Automaton has 1742 states and 2369 transitions. Word has length 234 [2019-09-10 02:40:39,560 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 02:40:39,561 INFO L475 AbstractCegarLoop]: Abstraction has 1742 states and 2369 transitions. [2019-09-10 02:40:39,561 INFO L476 AbstractCegarLoop]: Interpolant automaton has 20 states. [2019-09-10 02:40:39,561 INFO L276 IsEmpty]: Start isEmpty. Operand 1742 states and 2369 transitions. [2019-09-10 02:40:39,565 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 244 [2019-09-10 02:40:39,566 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 02:40:39,566 INFO L399 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-10 02:40:39,566 INFO L418 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 02:40:39,566 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 02:40:39,567 INFO L82 PathProgramCache]: Analyzing trace with hash -558509607, now seen corresponding path program 1 times [2019-09-10 02:40:39,567 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 02:40:39,567 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:40:39,568 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 02:40:39,568 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:40:39,568 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 02:40:39,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 02:40:39,843 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 37 trivial. 0 not checked. [2019-09-10 02:40:39,844 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-10 02:40:39,844 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2019-09-10 02:40:39,846 INFO L205 CegarAbsIntRunner]: Running AI on error trace of length 244 with the following transitions: [2019-09-10 02:40:39,849 INFO L207 CegarAbsIntRunner]: [44], [46], [49], [51], [53], [56], [80], [83], [93], [94], [97], [106], [127], [130], [140], [141], [157], [160], [174], [175], [177], [287], [289], [293], [296], [297], [298], [301], [307], [329], [332], [335], [344], [355], [356], [357], [359], [360], [363], [373], [374], [411], [413], [416], [418], [421], [427], [429], [432], [434], [436], [439], [447], [477], [480], [486], [632], [634], [635], [636], [642], [645], [651], [672], [675], [689], [718], [721], [727], [728], [730], [733], [734], [735], [738], [744], [745], [747], [751], [754], [768], [772], [775], [793], [796], [811], [817], [826], [830], [832], [834], [837], [844], [851], [854], [990], [992], [1009], [1138], [1192], [1214], [1215], [1218], [1224], [1225], [1228], [1229], [1232], [1235], [1266], [1269], [1271], [1384], [1387], [1401], [1407], [1410], [1419], [1420], [1423], [1432], [1435], [1438], [1447], [1613], [1615], [1617], [1619], [1620], [1632], [1633], [1634], [1635], [1636], [1637], [1638], [1658], [1668], [1669], [1670], [1671], [1672], [1673], [1676], [1677], [1678], [1679], [1680], [1682], [1683], [1684], [1685], [1692], [1698], [1699], [1700], [1712], [1713], [1714], [1715], [1716], [1717], [1718], [1719], [1720], [1721], [1722], [1723], [1724], [1725], [1742], [1743], [1756], [1757], [1758], [1760], [1761], [1762], [1763], [1764], [1765], [1766], [1767], [1768], [1769], [1770], [1771], [1772], [1773], [1774], [1776], [1777], [1778], [1779], [1780], [1781], [1782], [1804], [1806], [1807], [1824], [1826], [1827], [1828], [1830], [1831], [1832], [1833], [1834], [1835], [1836], [1856], [1857], [1858], [1859], [1860], [1861], [1862], [1863], [1864] [2019-09-10 02:40:39,939 INFO L148 AbstractInterpreter]: Using domain IntervalDomain [2019-09-10 02:40:39,940 INFO L101 FixpointEngine]: Starting fixpoint engine with domain IntervalDomain (maxUnwinding=3, maxParallelStates=2) [2019-09-10 02:40:40,094 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2019-09-10 02:40:40,096 INFO L272 AbstractInterpreter]: Visited 2 different actions 2 times. Never merged. Never widened. Performed 201 root evaluator evaluations with a maximum evaluation depth of 0. Performed 201 inverse root evaluator evaluations with a maximum inverse evaluation depth of 0. Never found a fixpoint. Largest state had 368 variables. [2019-09-10 02:40:40,101 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 02:40:40,101 INFO L403 sIntCurrentIteration]: Generating AbsInt predicates [2019-09-10 02:40:40,222 INFO L219 lantSequenceWeakener]: Could never weaken! [2019-09-10 02:40:40,223 INFO L418 sIntCurrentIteration]: Unifying AI predicates [2019-09-10 02:40:40,229 INFO L420 sIntCurrentIteration]: We unified 242 AI predicates to 242 [2019-09-10 02:40:40,229 INFO L429 sIntCurrentIteration]: Finished generation of AbsInt predicates [2019-09-10 02:40:40,230 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-09-10 02:40:40,230 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [7] total 7 [2019-09-10 02:40:40,230 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 02:40:40,231 INFO L454 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-09-10 02:40:40,231 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-09-10 02:40:40,232 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-09-10 02:40:40,232 INFO L87 Difference]: Start difference. First operand 1742 states and 2369 transitions. Second operand 2 states. [2019-09-10 02:40:40,232 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 02:40:40,232 INFO L93 Difference]: Finished difference Result 2 states and 1 transitions. [2019-09-10 02:40:40,233 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-09-10 02:40:40,233 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 243 [2019-09-10 02:40:40,233 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 02:40:40,233 INFO L225 Difference]: With dead ends: 2 [2019-09-10 02:40:40,233 INFO L226 Difference]: Without dead ends: 0 [2019-09-10 02:40:40,233 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 242 GetRequests, 242 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-09-10 02:40:40,234 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-09-10 02:40:40,234 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-09-10 02:40:40,234 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-09-10 02:40:40,234 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-09-10 02:40:40,234 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 243 [2019-09-10 02:40:40,234 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 02:40:40,235 INFO L475 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-09-10 02:40:40,235 INFO L476 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-09-10 02:40:40,235 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-09-10 02:40:40,235 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-09-10 02:40:40,240 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.09 02:40:40 BoogieIcfgContainer [2019-09-10 02:40:40,240 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-09-10 02:40:40,242 INFO L168 Benchmark]: Toolchain (without parser) took 15924.70 ms. Allocated memory was 135.8 MB in the beginning and 482.9 MB in the end (delta: 347.1 MB). Free memory was 89.3 MB in the beginning and 214.0 MB in the end (delta: -124.8 MB). Peak memory consumption was 222.3 MB. Max. memory is 7.1 GB. [2019-09-10 02:40:40,243 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 135.8 MB. Free memory was 110.3 MB in the beginning and 110.1 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. [2019-09-10 02:40:40,244 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1074.27 ms. Allocated memory was 135.8 MB in the beginning and 205.5 MB in the end (delta: 69.7 MB). Free memory was 89.0 MB in the beginning and 138.1 MB in the end (delta: -49.0 MB). Peak memory consumption was 34.4 MB. Max. memory is 7.1 GB. [2019-09-10 02:40:40,245 INFO L168 Benchmark]: Boogie Preprocessor took 212.73 ms. Allocated memory is still 205.5 MB. Free memory was 138.1 MB in the beginning and 129.2 MB in the end (delta: 8.9 MB). Peak memory consumption was 8.9 MB. Max. memory is 7.1 GB. [2019-09-10 02:40:40,246 INFO L168 Benchmark]: RCFGBuilder took 2094.56 ms. Allocated memory was 205.5 MB in the beginning and 253.8 MB in the end (delta: 48.2 MB). Free memory was 129.2 MB in the beginning and 151.2 MB in the end (delta: -22.0 MB). Peak memory consumption was 84.5 MB. Max. memory is 7.1 GB. [2019-09-10 02:40:40,247 INFO L168 Benchmark]: TraceAbstraction took 12538.56 ms. Allocated memory was 253.8 MB in the beginning and 482.9 MB in the end (delta: 229.1 MB). Free memory was 151.2 MB in the beginning and 214.0 MB in the end (delta: -62.9 MB). Peak memory consumption was 166.2 MB. Max. memory is 7.1 GB. [2019-09-10 02:40:40,251 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 135.8 MB. Free memory was 110.3 MB in the beginning and 110.1 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 1074.27 ms. Allocated memory was 135.8 MB in the beginning and 205.5 MB in the end (delta: 69.7 MB). Free memory was 89.0 MB in the beginning and 138.1 MB in the end (delta: -49.0 MB). Peak memory consumption was 34.4 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 212.73 ms. Allocated memory is still 205.5 MB. Free memory was 138.1 MB in the beginning and 129.2 MB in the end (delta: 8.9 MB). Peak memory consumption was 8.9 MB. Max. memory is 7.1 GB. * RCFGBuilder took 2094.56 ms. Allocated memory was 205.5 MB in the beginning and 253.8 MB in the end (delta: 48.2 MB). Free memory was 129.2 MB in the beginning and 151.2 MB in the end (delta: -22.0 MB). Peak memory consumption was 84.5 MB. Max. memory is 7.1 GB. * TraceAbstraction took 12538.56 ms. Allocated memory was 253.8 MB in the beginning and 482.9 MB in the end (delta: 229.1 MB). Free memory was 151.2 MB in the beginning and 214.0 MB in the end (delta: -62.9 MB). Peak memory consumption was 166.2 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 961]: 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 111 procedures, 761 locations, 1 error locations. SAFE Result, 12.4s OverallTime, 9 OverallIterations, 3 TraceHistogramMax, 8.6s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 5588 SDtfs, 2667 SDslu, 33868 SDs, 0 SdLazy, 7325 SolverSat, 1008 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 6.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 373 GetRequests, 279 SyntacticMatches, 0 SemanticMatches, 94 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 129 ImplicationChecksByTransitivity, 1.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=2024occurred in iteration=7, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.2s AbstIntTime, 1 AbstIntIterations, 1 AbstIntStrong, 1.0 AbsIntWeakeningRatio, 2.0330578512396693 AbsIntAvgWeakeningVarsNumRemoved, 0.0 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.3s AutomataMinimizationTime, 9 MinimizatonAttempts, 38 StatesRemovedByMinimization, 6 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.1s SsaConstructionTime, 0.5s SatisfiabilityAnalysisTime, 1.8s InterpolantComputationTime, 1873 NumberOfCodeBlocks, 1873 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 1864 ConstructedInterpolants, 0 QuantifiedInterpolants, 530673 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 9 InterpolantComputations, 8 PerfectInterpolantSequences, 291/293 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...