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_spec3_product18.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-112bae1 [2019-09-10 02:40:47,271 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-09-10 02:40:47,273 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-09-10 02:40:47,290 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-09-10 02:40:47,291 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-09-10 02:40:47,292 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-09-10 02:40:47,294 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-09-10 02:40:47,303 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-09-10 02:40:47,307 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-09-10 02:40:47,310 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-09-10 02:40:47,312 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-09-10 02:40:47,314 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-09-10 02:40:47,315 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-09-10 02:40:47,316 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-09-10 02:40:47,319 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-09-10 02:40:47,320 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-09-10 02:40:47,321 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-09-10 02:40:47,322 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-09-10 02:40:47,324 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-09-10 02:40:47,326 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-09-10 02:40:47,327 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-09-10 02:40:47,328 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-09-10 02:40:47,329 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-09-10 02:40:47,330 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-09-10 02:40:47,331 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-09-10 02:40:47,332 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-09-10 02:40:47,332 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-09-10 02:40:47,333 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-09-10 02:40:47,333 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-09-10 02:40:47,334 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-09-10 02:40:47,334 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-09-10 02:40:47,335 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-09-10 02:40:47,336 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-09-10 02:40:47,336 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-09-10 02:40:47,337 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-09-10 02:40:47,337 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-09-10 02:40:47,338 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-09-10 02:40:47,338 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-09-10 02:40:47,339 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-09-10 02:40:47,339 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-09-10 02:40:47,340 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-09-10 02:40:47,341 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 02:40:47,355 INFO L113 SettingsManager]: Loading preferences was successful [2019-09-10 02:40:47,355 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-09-10 02:40:47,355 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2019-09-10 02:40:47,356 INFO L138 SettingsManager]: * Log level for plugins=info [2019-09-10 02:40:47,356 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-09-10 02:40:47,356 INFO L138 SettingsManager]: * User list type=DISABLED [2019-09-10 02:40:47,357 INFO L138 SettingsManager]: * Ignore calls to and inside polymorphic procedures=false [2019-09-10 02:40:47,357 INFO L138 SettingsManager]: * Ignore calls to recursive procedures=false [2019-09-10 02:40:47,357 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-09-10 02:40:47,357 INFO L138 SettingsManager]: * Abstract domain=IntervalDomain [2019-09-10 02:40:47,358 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-09-10 02:40:47,358 INFO L138 SettingsManager]: * sizeof long=4 [2019-09-10 02:40:47,358 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-09-10 02:40:47,358 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-09-10 02:40:47,359 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-09-10 02:40:47,359 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-09-10 02:40:47,359 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-09-10 02:40:47,359 INFO L138 SettingsManager]: * sizeof long double=12 [2019-09-10 02:40:47,359 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-09-10 02:40:47,360 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-09-10 02:40:47,360 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-09-10 02:40:47,360 INFO L138 SettingsManager]: * Remove goto edges from RCFG=true [2019-09-10 02:40:47,360 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-09-10 02:40:47,361 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-09-10 02:40:47,361 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-09-10 02:40:47,361 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-09-10 02:40:47,361 INFO L138 SettingsManager]: * Trace refinement strategy=TAIPAN [2019-09-10 02:40:47,361 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-09-10 02:40:47,362 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-09-10 02:40:47,362 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2019-09-10 02:40:47,393 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-09-10 02:40:47,405 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-09-10 02:40:47,411 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-09-10 02:40:47,413 INFO L271 PluginConnector]: Initializing CDTParser... [2019-09-10 02:40:47,413 INFO L275 PluginConnector]: CDTParser initialized [2019-09-10 02:40:47,414 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/email_spec3_product18.cil.c [2019-09-10 02:40:47,483 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6a39e7e8b/cae6dab1ac75402f938b747c9d90d35c/FLAG403175e79 [2019-09-10 02:40:48,079 INFO L306 CDTParser]: Found 1 translation units. [2019-09-10 02:40:48,082 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/email_spec3_product18.cil.c [2019-09-10 02:40:48,113 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6a39e7e8b/cae6dab1ac75402f938b747c9d90d35c/FLAG403175e79 [2019-09-10 02:40:48,330 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6a39e7e8b/cae6dab1ac75402f938b747c9d90d35c [2019-09-10 02:40:48,338 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-09-10 02:40:48,339 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-09-10 02:40:48,340 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-09-10 02:40:48,341 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-09-10 02:40:48,344 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-09-10 02:40:48,345 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.09 02:40:48" (1/1) ... [2019-09-10 02:40:48,348 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@cdd3a49 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 02:40:48, skipping insertion in model container [2019-09-10 02:40:48,348 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.09 02:40:48" (1/1) ... [2019-09-10 02:40:48,355 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-09-10 02:40:48,433 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-09-10 02:40:49,118 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-10 02:40:49,150 INFO L188 MainTranslator]: Completed pre-run [2019-09-10 02:40:49,349 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-10 02:40:49,431 INFO L192 MainTranslator]: Completed translation [2019-09-10 02:40:49,432 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 02:40:49 WrapperNode [2019-09-10 02:40:49,432 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-09-10 02:40:49,433 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-09-10 02:40:49,433 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-09-10 02:40:49,433 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-09-10 02:40:49,449 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 02:40:49" (1/1) ... [2019-09-10 02:40:49,449 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 02:40:49" (1/1) ... [2019-09-10 02:40:49,479 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 02:40:49" (1/1) ... [2019-09-10 02:40:49,480 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 02:40:49" (1/1) ... [2019-09-10 02:40:49,530 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 02:40:49" (1/1) ... [2019-09-10 02:40:49,554 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 02:40:49" (1/1) ... [2019-09-10 02:40:49,570 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 02:40:49" (1/1) ... [2019-09-10 02:40:49,589 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-09-10 02:40:49,589 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-09-10 02:40:49,589 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-09-10 02:40:49,590 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-09-10 02:40:49,591 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 02:40:49" (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 02:40:49,666 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-09-10 02:40:49,666 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-09-10 02:40:49,666 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-09-10 02:40:49,667 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-09-10 02:40:49,667 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-09-10 02:40:49,667 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-09-10 02:40:49,667 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-09-10 02:40:49,667 INFO L138 BoogieDeclarations]: Found implementation of procedure initClient [2019-09-10 02:40:49,668 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientName [2019-09-10 02:40:49,668 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientName [2019-09-10 02:40:49,668 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientOutbuffer [2019-09-10 02:40:49,668 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientOutbuffer [2019-09-10 02:40:49,668 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookSize [2019-09-10 02:40:49,669 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookSize [2019-09-10 02:40:49,669 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientAddressBookEntry [2019-09-10 02:40:49,669 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAlias [2019-09-10 02:40:49,669 INFO L138 BoogieDeclarations]: Found implementation of procedure findClientAddressBookAlias [2019-09-10 02:40:49,670 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAlias [2019-09-10 02:40:49,670 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAddress [2019-09-10 02:40:49,670 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAddress [2019-09-10 02:40:49,670 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAutoResponse [2019-09-10 02:40:49,670 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAutoResponse [2019-09-10 02:40:49,671 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientPrivateKey [2019-09-10 02:40:49,671 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2019-09-10 02:40:49,671 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringSize [2019-09-10 02:40:49,671 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringSize [2019-09-10 02:40:49,671 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2019-09-10 02:40:49,672 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringUser [2019-09-10 02:40:49,672 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2019-09-10 02:40:49,672 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringPublicKey [2019-09-10 02:40:49,672 INFO L138 BoogieDeclarations]: Found implementation of procedure findPublicKey [2019-09-10 02:40:49,672 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2019-09-10 02:40:49,672 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientForwardReceiver [2019-09-10 02:40:49,673 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientForwardReceiver [2019-09-10 02:40:49,673 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientId [2019-09-10 02:40:49,673 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2019-09-10 02:40:49,673 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob__wrappee__Base [2019-09-10 02:40:49,673 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob [2019-09-10 02:40:49,674 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh__wrappee__Base [2019-09-10 02:40:49,674 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh [2019-09-10 02:40:49,674 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck__wrappee__Base [2019-09-10 02:40:49,674 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck [2019-09-10 02:40:49,674 INFO L138 BoogieDeclarations]: Found implementation of procedure bobToRjh [2019-09-10 02:40:49,674 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhToBob [2019-09-10 02:40:49,674 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-09-10 02:40:49,675 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-09-10 02:40:49,675 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAdd [2019-09-10 02:40:49,675 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAdd [2019-09-10 02:40:49,675 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAddChuck [2019-09-10 02:40:49,675 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAddChuck [2019-09-10 02:40:49,675 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2019-09-10 02:40:49,675 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAddRjh [2019-09-10 02:40:49,675 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhDeletePrivateKey [2019-09-10 02:40:49,676 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyChange [2019-09-10 02:40:49,676 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyChange [2019-09-10 02:40:49,676 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhSetAutoRespond [2019-09-10 02:40:49,676 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-09-10 02:40:49,676 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-09-10 02:40:49,676 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-09-10 02:40:49,676 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-09-10 02:40:49,677 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-09-10 02:40:49,677 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-09-10 02:40:49,677 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-09-10 02:40:49,677 INFO L138 BoogieDeclarations]: Found implementation of procedure mail [2019-09-10 02:40:49,677 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__AutoResponder [2019-09-10 02:40:49,677 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2019-09-10 02:40:49,677 INFO L138 BoogieDeclarations]: Found implementation of procedure deliver [2019-09-10 02:40:49,678 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Keys [2019-09-10 02:40:49,678 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Sign [2019-09-10 02:40:49,678 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming [2019-09-10 02:40:49,678 INFO L138 BoogieDeclarations]: Found implementation of procedure createClient [2019-09-10 02:40:49,678 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2019-09-10 02:40:49,678 INFO L138 BoogieDeclarations]: Found implementation of procedure queue [2019-09-10 02:40:49,678 INFO L138 BoogieDeclarations]: Found implementation of procedure is_queue_empty [2019-09-10 02:40:49,679 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_client [2019-09-10 02:40:49,679 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_email [2019-09-10 02:40:49,679 INFO L138 BoogieDeclarations]: Found implementation of procedure isKeyPairValid [2019-09-10 02:40:49,679 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2019-09-10 02:40:49,679 INFO L138 BoogieDeclarations]: Found implementation of procedure autoRespond [2019-09-10 02:40:49,679 INFO L138 BoogieDeclarations]: Found implementation of procedure sign [2019-09-10 02:40:49,679 INFO L138 BoogieDeclarations]: Found implementation of procedure verify [2019-09-10 02:40:49,680 INFO L138 BoogieDeclarations]: Found implementation of procedure initEmail [2019-09-10 02:40:49,680 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailId [2019-09-10 02:40:49,680 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailId [2019-09-10 02:40:49,680 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2019-09-10 02:40:49,680 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2019-09-10 02:40:49,680 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2019-09-10 02:40:49,680 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2019-09-10 02:40:49,681 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSubject [2019-09-10 02:40:49,681 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSubject [2019-09-10 02:40:49,681 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailBody [2019-09-10 02:40:49,681 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailBody [2019-09-10 02:40:49,681 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2019-09-10 02:40:49,681 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2019-09-10 02:40:49,682 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2019-09-10 02:40:49,682 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2019-09-10 02:40:49,682 INFO L138 BoogieDeclarations]: Found implementation of procedure isSigned [2019-09-10 02:40:49,682 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSigned [2019-09-10 02:40:49,682 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSignKey [2019-09-10 02:40:49,682 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSignKey [2019-09-10 02:40:49,682 INFO L138 BoogieDeclarations]: Found implementation of procedure isVerified [2019-09-10 02:40:49,682 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSignatureVerified [2019-09-10 02:40:49,683 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__SignVerify_spec__1 [2019-09-10 02:40:49,683 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__SignVerify_spec__2 [2019-09-10 02:40:49,683 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-09-10 02:40:49,683 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__AutoResponder [2019-09-10 02:40:49,683 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__Sign [2019-09-10 02:40:49,683 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail [2019-09-10 02:40:49,683 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2019-09-10 02:40:49,684 INFO L138 BoogieDeclarations]: Found implementation of procedure cloneEmail [2019-09-10 02:40:49,684 INFO L138 BoogieDeclarations]: Found implementation of procedure createEmail [2019-09-10 02:40:49,684 INFO L138 BoogieDeclarations]: Found implementation of procedure prompt [2019-09-10 02:40:49,684 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-09-10 02:40:49,684 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-09-10 02:40:49,684 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-09-10 02:40:49,685 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-09-10 02:40:49,685 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-09-10 02:40:49,685 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-09-10 02:40:49,685 INFO L130 BoogieDeclarations]: Found specification of procedure initClient [2019-09-10 02:40:49,685 INFO L130 BoogieDeclarations]: Found specification of procedure getClientName [2019-09-10 02:40:49,685 INFO L130 BoogieDeclarations]: Found specification of procedure setClientName [2019-09-10 02:40:49,686 INFO L130 BoogieDeclarations]: Found specification of procedure getClientOutbuffer [2019-09-10 02:40:49,686 INFO L130 BoogieDeclarations]: Found specification of procedure setClientOutbuffer [2019-09-10 02:40:49,686 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookSize [2019-09-10 02:40:49,686 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookSize [2019-09-10 02:40:49,686 INFO L130 BoogieDeclarations]: Found specification of procedure createClientAddressBookEntry [2019-09-10 02:40:49,686 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAlias [2019-09-10 02:40:49,686 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAlias [2019-09-10 02:40:49,687 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAddress [2019-09-10 02:40:49,687 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAddress [2019-09-10 02:40:49,687 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAutoResponse [2019-09-10 02:40:49,687 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAutoResponse [2019-09-10 02:40:49,687 INFO L130 BoogieDeclarations]: Found specification of procedure getClientPrivateKey [2019-09-10 02:40:49,687 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2019-09-10 02:40:49,688 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringSize [2019-09-10 02:40:49,688 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2019-09-10 02:40:49,688 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringUser [2019-09-10 02:40:49,688 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2019-09-10 02:40:49,692 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringPublicKey [2019-09-10 02:40:49,694 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2019-09-10 02:40:49,695 INFO L130 BoogieDeclarations]: Found specification of procedure getClientForwardReceiver [2019-09-10 02:40:49,695 INFO L130 BoogieDeclarations]: Found specification of procedure setClientForwardReceiver [2019-09-10 02:40:49,695 INFO L130 BoogieDeclarations]: Found specification of procedure getClientId [2019-09-10 02:40:49,696 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2019-09-10 02:40:49,697 INFO L130 BoogieDeclarations]: Found specification of procedure findPublicKey [2019-09-10 02:40:49,697 INFO L130 BoogieDeclarations]: Found specification of procedure findClientAddressBookAlias [2019-09-10 02:40:49,697 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringSize [2019-09-10 02:40:49,697 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-09-10 02:40:49,697 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2019-09-10 02:40:49,698 INFO L130 BoogieDeclarations]: Found specification of procedure is_queue_empty [2019-09-10 02:40:49,698 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_client [2019-09-10 02:40:49,698 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_email [2019-09-10 02:40:49,698 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2019-09-10 02:40:49,698 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2019-09-10 02:40:49,699 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2019-09-10 02:40:49,699 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob [2019-09-10 02:40:49,699 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh [2019-09-10 02:40:49,706 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck [2019-09-10 02:40:49,706 INFO L130 BoogieDeclarations]: Found specification of procedure bobToRjh [2019-09-10 02:40:49,707 INFO L130 BoogieDeclarations]: Found specification of procedure rjhToBob [2019-09-10 02:40:49,707 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-09-10 02:40:49,707 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-09-10 02:40:49,707 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-09-10 02:40:49,707 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAdd [2019-09-10 02:40:49,708 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAddChuck [2019-09-10 02:40:49,708 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAdd [2019-09-10 02:40:49,708 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAddChuck [2019-09-10 02:40:49,708 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2019-09-10 02:40:49,708 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyChange [2019-09-10 02:40:49,709 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyChange [2019-09-10 02:40:49,709 INFO L130 BoogieDeclarations]: Found specification of procedure rjhDeletePrivateKey [2019-09-10 02:40:49,709 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAddRjh [2019-09-10 02:40:49,709 INFO L130 BoogieDeclarations]: Found specification of procedure rjhSetAutoRespond [2019-09-10 02:40:49,709 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob__wrappee__Base [2019-09-10 02:40:49,709 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh__wrappee__Base [2019-09-10 02:40:49,709 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck__wrappee__Base [2019-09-10 02:40:49,710 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-09-10 02:40:49,710 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-09-10 02:40:49,710 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-09-10 02:40:49,710 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-09-10 02:40:49,710 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-09-10 02:40:49,710 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-09-10 02:40:49,710 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-09-10 02:40:49,710 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-09-10 02:40:49,711 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-09-10 02:40:49,711 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-09-10 02:40:49,711 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-09-10 02:40:49,711 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-09-10 02:40:49,711 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-09-10 02:40:49,711 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-09-10 02:40:49,711 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-09-10 02:40:49,711 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-09-10 02:40:49,712 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-09-10 02:40:49,712 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-09-10 02:40:49,712 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2019-09-10 02:40:49,712 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2019-09-10 02:40:49,712 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2019-09-10 02:40:49,712 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2019-09-10 02:40:49,712 INFO L130 BoogieDeclarations]: Found specification of procedure isSigned [2019-09-10 02:40:49,713 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSigned [2019-09-10 02:40:49,713 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSignKey [2019-09-10 02:40:49,713 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSignKey [2019-09-10 02:40:49,713 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSignatureVerified [2019-09-10 02:40:49,713 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2019-09-10 02:40:49,713 INFO L130 BoogieDeclarations]: Found specification of procedure createEmail [2019-09-10 02:40:49,713 INFO L130 BoogieDeclarations]: Found specification of procedure queue [2019-09-10 02:40:49,713 INFO L130 BoogieDeclarations]: Found specification of procedure mail [2019-09-10 02:40:49,714 INFO L130 BoogieDeclarations]: Found specification of procedure deliver [2019-09-10 02:40:49,715 INFO L130 BoogieDeclarations]: Found specification of procedure incoming [2019-09-10 02:40:49,715 INFO L130 BoogieDeclarations]: Found specification of procedure createClient [2019-09-10 02:40:49,715 INFO L130 BoogieDeclarations]: Found specification of procedure isKeyPairValid [2019-09-10 02:40:49,715 INFO L130 BoogieDeclarations]: Found specification of procedure autoRespond [2019-09-10 02:40:49,716 INFO L130 BoogieDeclarations]: Found specification of procedure sign [2019-09-10 02:40:49,716 INFO L130 BoogieDeclarations]: Found specification of procedure verify [2019-09-10 02:40:49,716 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__SignVerify_spec__1 [2019-09-10 02:40:49,716 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__AutoResponder [2019-09-10 02:40:49,716 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Keys [2019-09-10 02:40:49,716 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Sign [2019-09-10 02:40:49,716 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__SignVerify_spec__2 [2019-09-10 02:40:49,716 INFO L130 BoogieDeclarations]: Found specification of procedure initEmail [2019-09-10 02:40:49,717 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailId [2019-09-10 02:40:49,717 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailId [2019-09-10 02:40:49,717 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSubject [2019-09-10 02:40:49,717 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSubject [2019-09-10 02:40:49,717 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailBody [2019-09-10 02:40:49,717 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailBody [2019-09-10 02:40:49,718 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2019-09-10 02:40:49,718 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2019-09-10 02:40:49,718 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2019-09-10 02:40:49,718 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2019-09-10 02:40:49,718 INFO L130 BoogieDeclarations]: Found specification of procedure isVerified [2019-09-10 02:40:49,719 INFO L130 BoogieDeclarations]: Found specification of procedure printMail [2019-09-10 02:40:49,719 INFO L130 BoogieDeclarations]: Found specification of procedure cloneEmail [2019-09-10 02:40:49,719 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__AutoResponder [2019-09-10 02:40:49,719 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__Sign [2019-09-10 02:40:49,720 INFO L130 BoogieDeclarations]: Found specification of procedure prompt [2019-09-10 02:40:49,720 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-09-10 02:40:49,720 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-09-10 02:40:49,720 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-09-10 02:40:51,995 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-09-10 02:40:51,996 INFO L283 CfgBuilder]: Removed 4 assume(true) statements. [2019-09-10 02:40:51,999 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.09 02:40:51 BoogieIcfgContainer [2019-09-10 02:40:51,999 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-09-10 02:40:52,002 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-09-10 02:40:52,003 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-09-10 02:40:52,007 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-09-10 02:40:52,007 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.09 02:40:48" (1/3) ... [2019-09-10 02:40:52,008 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@468af1be and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.09 02:40:52, skipping insertion in model container [2019-09-10 02:40:52,008 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 02:40:49" (2/3) ... [2019-09-10 02:40:52,009 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@468af1be and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.09 02:40:52, skipping insertion in model container [2019-09-10 02:40:52,009 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.09 02:40:51" (3/3) ... [2019-09-10 02:40:52,011 INFO L109 eAbstractionObserver]: Analyzing ICFG email_spec3_product18.cil.c [2019-09-10 02:40:52,021 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-09-10 02:40:52,033 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-09-10 02:40:52,052 INFO L252 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-09-10 02:40:52,088 INFO L377 AbstractCegarLoop]: Interprodecural is true [2019-09-10 02:40:52,088 INFO L378 AbstractCegarLoop]: Hoare is false [2019-09-10 02:40:52,089 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-09-10 02:40:52,089 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-09-10 02:40:52,089 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-09-10 02:40:52,089 INFO L382 AbstractCegarLoop]: Difference is false [2019-09-10 02:40:52,089 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-09-10 02:40:52,089 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-09-10 02:40:52,128 INFO L276 IsEmpty]: Start isEmpty. Operand 494 states. [2019-09-10 02:40:52,166 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 171 [2019-09-10 02:40:52,167 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 02:40:52,170 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] [2019-09-10 02:40:52,176 INFO L418 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 02:40:52,181 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 02:40:52,182 INFO L82 PathProgramCache]: Analyzing trace with hash 1409604361, now seen corresponding path program 1 times [2019-09-10 02:40:52,185 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 02:40:52,239 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:40:52,240 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 02:40:52,240 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:40:52,240 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 02:40:52,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 02:40:52,773 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 02:40:52,775 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 02:40:52,775 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-09-10 02:40:52,775 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 02:40:52,782 INFO L454 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-09-10 02:40:52,796 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-09-10 02:40:52,797 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-09-10 02:40:52,799 INFO L87 Difference]: Start difference. First operand 494 states. Second operand 2 states. [2019-09-10 02:40:52,847 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 02:40:52,848 INFO L93 Difference]: Finished difference Result 458 states and 606 transitions. [2019-09-10 02:40:52,848 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-09-10 02:40:52,849 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 170 [2019-09-10 02:40:52,851 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 02:40:52,870 INFO L225 Difference]: With dead ends: 458 [2019-09-10 02:40:52,870 INFO L226 Difference]: Without dead ends: 449 [2019-09-10 02:40:52,872 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 02:40:52,892 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 449 states. [2019-09-10 02:40:52,965 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 449 to 449. [2019-09-10 02:40:52,966 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 449 states. [2019-09-10 02:40:52,973 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 449 states to 449 states and 595 transitions. [2019-09-10 02:40:52,975 INFO L78 Accepts]: Start accepts. Automaton has 449 states and 595 transitions. Word has length 170 [2019-09-10 02:40:52,977 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 02:40:52,977 INFO L475 AbstractCegarLoop]: Abstraction has 449 states and 595 transitions. [2019-09-10 02:40:52,977 INFO L476 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-09-10 02:40:52,977 INFO L276 IsEmpty]: Start isEmpty. Operand 449 states and 595 transitions. [2019-09-10 02:40:52,982 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2019-09-10 02:40:52,982 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 02:40:52,983 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] [2019-09-10 02:40:52,983 INFO L418 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 02:40:52,983 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 02:40:52,984 INFO L82 PathProgramCache]: Analyzing trace with hash 295988568, now seen corresponding path program 1 times [2019-09-10 02:40:52,984 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 02:40:52,985 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:40:52,985 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 02:40:52,985 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:40:52,986 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 02:40:53,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 02:40:53,306 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 02:40:53,306 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 02:40:53,306 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-10 02:40:53,306 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 02:40:53,311 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-10 02:40:53,312 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-10 02:40:53,313 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-10 02:40:53,313 INFO L87 Difference]: Start difference. First operand 449 states and 595 transitions. Second operand 3 states. [2019-09-10 02:40:53,361 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 02:40:53,361 INFO L93 Difference]: Finished difference Result 452 states and 598 transitions. [2019-09-10 02:40:53,362 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-10 02:40:53,362 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 171 [2019-09-10 02:40:53,363 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 02:40:53,367 INFO L225 Difference]: With dead ends: 452 [2019-09-10 02:40:53,367 INFO L226 Difference]: Without dead ends: 452 [2019-09-10 02:40:53,368 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 02:40:53,369 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 452 states. [2019-09-10 02:40:53,390 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 452 to 451. [2019-09-10 02:40:53,390 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 451 states. [2019-09-10 02:40:53,394 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 451 states to 451 states and 597 transitions. [2019-09-10 02:40:53,394 INFO L78 Accepts]: Start accepts. Automaton has 451 states and 597 transitions. Word has length 171 [2019-09-10 02:40:53,395 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 02:40:53,395 INFO L475 AbstractCegarLoop]: Abstraction has 451 states and 597 transitions. [2019-09-10 02:40:53,395 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-10 02:40:53,395 INFO L276 IsEmpty]: Start isEmpty. Operand 451 states and 597 transitions. [2019-09-10 02:40:53,398 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 182 [2019-09-10 02:40:53,398 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 02:40:53,399 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] [2019-09-10 02:40:53,399 INFO L418 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 02:40:53,399 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 02:40:53,399 INFO L82 PathProgramCache]: Analyzing trace with hash -1559518136, now seen corresponding path program 1 times [2019-09-10 02:40:53,400 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 02:40:53,400 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:40:53,401 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 02:40:53,401 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:40:53,401 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 02:40:53,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 02:40:53,604 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 02:40:53,604 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 02:40:53,605 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-10 02:40:53,605 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 02:40:53,605 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-10 02:40:53,606 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-10 02:40:53,606 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-10 02:40:53,606 INFO L87 Difference]: Start difference. First operand 451 states and 597 transitions. Second operand 3 states. [2019-09-10 02:40:53,635 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 02:40:53,636 INFO L93 Difference]: Finished difference Result 492 states and 667 transitions. [2019-09-10 02:40:53,636 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-10 02:40:53,636 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 181 [2019-09-10 02:40:53,637 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 02:40:53,641 INFO L225 Difference]: With dead ends: 492 [2019-09-10 02:40:53,641 INFO L226 Difference]: Without dead ends: 492 [2019-09-10 02:40:53,642 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 02:40:53,643 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 492 states. [2019-09-10 02:40:53,663 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 492 to 491. [2019-09-10 02:40:53,663 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 491 states. [2019-09-10 02:40:53,667 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 491 states to 491 states and 666 transitions. [2019-09-10 02:40:53,667 INFO L78 Accepts]: Start accepts. Automaton has 491 states and 666 transitions. Word has length 181 [2019-09-10 02:40:53,667 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 02:40:53,668 INFO L475 AbstractCegarLoop]: Abstraction has 491 states and 666 transitions. [2019-09-10 02:40:53,668 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-10 02:40:53,668 INFO L276 IsEmpty]: Start isEmpty. Operand 491 states and 666 transitions. [2019-09-10 02:40:53,674 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2019-09-10 02:40:53,674 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 02:40:53,675 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] [2019-09-10 02:40:53,675 INFO L418 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 02:40:53,676 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 02:40:53,676 INFO L82 PathProgramCache]: Analyzing trace with hash -1957887877, now seen corresponding path program 1 times [2019-09-10 02:40:53,676 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 02:40:53,677 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:40:53,677 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 02:40:53,677 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:40:53,678 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 02:40:53,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 02:40:53,899 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 02:40:53,899 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 02:40:53,900 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-10 02:40:53,900 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 02:40:53,900 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-10 02:40:53,901 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-10 02:40:53,901 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-10 02:40:53,901 INFO L87 Difference]: Start difference. First operand 491 states and 666 transitions. Second operand 3 states. [2019-09-10 02:40:53,931 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 02:40:53,932 INFO L93 Difference]: Finished difference Result 569 states and 799 transitions. [2019-09-10 02:40:53,932 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-10 02:40:53,933 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 182 [2019-09-10 02:40:53,934 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 02:40:53,939 INFO L225 Difference]: With dead ends: 569 [2019-09-10 02:40:53,939 INFO L226 Difference]: Without dead ends: 569 [2019-09-10 02:40:53,939 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 02:40:53,941 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 569 states. [2019-09-10 02:40:53,966 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 569 to 568. [2019-09-10 02:40:53,966 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 568 states. [2019-09-10 02:40:53,971 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 568 states to 568 states and 798 transitions. [2019-09-10 02:40:53,972 INFO L78 Accepts]: Start accepts. Automaton has 568 states and 798 transitions. Word has length 182 [2019-09-10 02:40:53,973 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 02:40:53,973 INFO L475 AbstractCegarLoop]: Abstraction has 568 states and 798 transitions. [2019-09-10 02:40:53,974 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-10 02:40:53,974 INFO L276 IsEmpty]: Start isEmpty. Operand 568 states and 798 transitions. [2019-09-10 02:40:53,979 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 184 [2019-09-10 02:40:53,979 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 02:40:53,980 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] [2019-09-10 02:40:53,980 INFO L418 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 02:40:53,980 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 02:40:53,981 INFO L82 PathProgramCache]: Analyzing trace with hash 529348680, now seen corresponding path program 1 times [2019-09-10 02:40:53,981 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 02:40:53,982 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:40:53,982 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 02:40:53,982 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:40:53,982 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 02:40:54,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 02:40:54,127 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 02:40:54,127 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 02:40:54,127 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-10 02:40:54,127 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 02:40:54,128 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-10 02:40:54,128 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-10 02:40:54,129 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-10 02:40:54,129 INFO L87 Difference]: Start difference. First operand 568 states and 798 transitions. Second operand 3 states. [2019-09-10 02:40:54,151 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 02:40:54,152 INFO L93 Difference]: Finished difference Result 717 states and 1051 transitions. [2019-09-10 02:40:54,152 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-10 02:40:54,152 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 183 [2019-09-10 02:40:54,153 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 02:40:54,157 INFO L225 Difference]: With dead ends: 717 [2019-09-10 02:40:54,157 INFO L226 Difference]: Without dead ends: 717 [2019-09-10 02:40:54,157 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 02:40:54,159 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 717 states. [2019-09-10 02:40:54,179 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 717 to 716. [2019-09-10 02:40:54,179 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 716 states. [2019-09-10 02:40:54,184 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 716 states to 716 states and 1050 transitions. [2019-09-10 02:40:54,184 INFO L78 Accepts]: Start accepts. Automaton has 716 states and 1050 transitions. Word has length 183 [2019-09-10 02:40:54,184 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 02:40:54,184 INFO L475 AbstractCegarLoop]: Abstraction has 716 states and 1050 transitions. [2019-09-10 02:40:54,185 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-10 02:40:54,185 INFO L276 IsEmpty]: Start isEmpty. Operand 716 states and 1050 transitions. [2019-09-10 02:40:54,189 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 185 [2019-09-10 02:40:54,189 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 02:40:54,189 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] [2019-09-10 02:40:54,189 INFO L418 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 02:40:54,190 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 02:40:54,190 INFO L82 PathProgramCache]: Analyzing trace with hash -1690978181, now seen corresponding path program 1 times [2019-09-10 02:40:54,190 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 02:40:54,191 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:40:54,191 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 02:40:54,191 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:40:54,191 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 02:40:54,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 02:40:54,318 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 02:40:54,318 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 02:40:54,318 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-10 02:40:54,319 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 02:40:54,319 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-10 02:40:54,319 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-10 02:40:54,320 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-10 02:40:54,320 INFO L87 Difference]: Start difference. First operand 716 states and 1050 transitions. Second operand 3 states. [2019-09-10 02:40:54,345 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 02:40:54,345 INFO L93 Difference]: Finished difference Result 1001 states and 1531 transitions. [2019-09-10 02:40:54,346 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-10 02:40:54,346 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 184 [2019-09-10 02:40:54,347 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 02:40:54,353 INFO L225 Difference]: With dead ends: 1001 [2019-09-10 02:40:54,353 INFO L226 Difference]: Without dead ends: 1001 [2019-09-10 02:40:54,354 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 02:40:54,355 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1001 states. [2019-09-10 02:40:54,384 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1001 to 1000. [2019-09-10 02:40:54,385 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1000 states. [2019-09-10 02:40:54,391 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1000 states to 1000 states and 1530 transitions. [2019-09-10 02:40:54,391 INFO L78 Accepts]: Start accepts. Automaton has 1000 states and 1530 transitions. Word has length 184 [2019-09-10 02:40:54,392 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 02:40:54,392 INFO L475 AbstractCegarLoop]: Abstraction has 1000 states and 1530 transitions. [2019-09-10 02:40:54,392 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-10 02:40:54,393 INFO L276 IsEmpty]: Start isEmpty. Operand 1000 states and 1530 transitions. [2019-09-10 02:40:54,399 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 188 [2019-09-10 02:40:54,399 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 02:40:54,400 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] [2019-09-10 02:40:54,400 INFO L418 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 02:40:54,400 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 02:40:54,401 INFO L82 PathProgramCache]: Analyzing trace with hash -897317591, now seen corresponding path program 1 times [2019-09-10 02:40:54,401 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 02:40:54,402 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:40:54,402 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 02:40:54,402 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:40:54,402 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 02:40:54,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 02:40:54,836 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 02:40:54,837 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 02:40:54,837 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2019-09-10 02:40:54,837 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 02:40:54,838 INFO L454 AbstractCegarLoop]: Interpolant automaton has 12 states [2019-09-10 02:40:54,838 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2019-09-10 02:40:54,839 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=106, Unknown=0, NotChecked=0, Total=132 [2019-09-10 02:40:54,839 INFO L87 Difference]: Start difference. First operand 1000 states and 1530 transitions. Second operand 12 states. [2019-09-10 02:41:03,251 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 02:41:03,251 INFO L93 Difference]: Finished difference Result 2422 states and 3366 transitions. [2019-09-10 02:41:03,252 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2019-09-10 02:41:03,252 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 187 [2019-09-10 02:41:03,253 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 02:41:03,265 INFO L225 Difference]: With dead ends: 2422 [2019-09-10 02:41:03,265 INFO L226 Difference]: Without dead ends: 2205 [2019-09-10 02:41:03,267 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 434 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=330, Invalid=1310, Unknown=0, NotChecked=0, Total=1640 [2019-09-10 02:41:03,269 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2205 states. [2019-09-10 02:41:03,327 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2205 to 2186. [2019-09-10 02:41:03,327 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2186 states. [2019-09-10 02:41:03,336 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2186 states to 2186 states and 3040 transitions. [2019-09-10 02:41:03,337 INFO L78 Accepts]: Start accepts. Automaton has 2186 states and 3040 transitions. Word has length 187 [2019-09-10 02:41:03,337 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 02:41:03,337 INFO L475 AbstractCegarLoop]: Abstraction has 2186 states and 3040 transitions. [2019-09-10 02:41:03,338 INFO L476 AbstractCegarLoop]: Interpolant automaton has 12 states. [2019-09-10 02:41:03,338 INFO L276 IsEmpty]: Start isEmpty. Operand 2186 states and 3040 transitions. [2019-09-10 02:41:03,343 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 189 [2019-09-10 02:41:03,343 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 02:41:03,343 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] [2019-09-10 02:41:03,344 INFO L418 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 02:41:03,344 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 02:41:03,344 INFO L82 PathProgramCache]: Analyzing trace with hash 1638781378, now seen corresponding path program 1 times [2019-09-10 02:41:03,344 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 02:41:03,345 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:41:03,345 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 02:41:03,345 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:41:03,346 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 02:41:03,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 02:41:03,634 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 02:41:03,635 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 02:41:03,635 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2019-09-10 02:41:03,635 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 02:41:03,636 INFO L454 AbstractCegarLoop]: Interpolant automaton has 16 states [2019-09-10 02:41:03,636 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2019-09-10 02:41:03,636 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=211, Unknown=0, NotChecked=0, Total=240 [2019-09-10 02:41:03,637 INFO L87 Difference]: Start difference. First operand 2186 states and 3040 transitions. Second operand 16 states. [2019-09-10 02:41:03,981 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 02:41:03,982 INFO L93 Difference]: Finished difference Result 2045 states and 2863 transitions. [2019-09-10 02:41:03,982 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2019-09-10 02:41:03,982 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 188 [2019-09-10 02:41:03,983 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 02:41:03,996 INFO L225 Difference]: With dead ends: 2045 [2019-09-10 02:41:03,996 INFO L226 Difference]: Without dead ends: 1679 [2019-09-10 02:41:03,997 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=53, Invalid=409, Unknown=0, NotChecked=0, Total=462 [2019-09-10 02:41:03,999 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1679 states. [2019-09-10 02:41:04,046 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1679 to 1561. [2019-09-10 02:41:04,046 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1561 states. [2019-09-10 02:41:04,053 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1561 states to 1561 states and 2240 transitions. [2019-09-10 02:41:04,054 INFO L78 Accepts]: Start accepts. Automaton has 1561 states and 2240 transitions. Word has length 188 [2019-09-10 02:41:04,057 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 02:41:04,057 INFO L475 AbstractCegarLoop]: Abstraction has 1561 states and 2240 transitions. [2019-09-10 02:41:04,057 INFO L476 AbstractCegarLoop]: Interpolant automaton has 16 states. [2019-09-10 02:41:04,057 INFO L276 IsEmpty]: Start isEmpty. Operand 1561 states and 2240 transitions. [2019-09-10 02:41:04,066 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 198 [2019-09-10 02:41:04,066 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 02:41:04,066 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] [2019-09-10 02:41:04,067 INFO L418 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 02:41:04,067 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 02:41:04,067 INFO L82 PathProgramCache]: Analyzing trace with hash -1262940159, now seen corresponding path program 1 times [2019-09-10 02:41:04,067 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 02:41:04,068 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:41:04,068 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 02:41:04,069 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:41:04,069 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 02:41:04,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 02:41:04,234 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 02:41:04,234 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 02:41:04,234 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-09-10 02:41:04,234 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 02:41:04,236 INFO L454 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-09-10 02:41:04,236 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-09-10 02:41:04,237 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-09-10 02:41:04,237 INFO L87 Difference]: Start difference. First operand 1561 states and 2240 transitions. Second operand 6 states. [2019-09-10 02:41:04,682 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 02:41:04,682 INFO L93 Difference]: Finished difference Result 1575 states and 2257 transitions. [2019-09-10 02:41:04,683 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-09-10 02:41:04,683 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 197 [2019-09-10 02:41:04,684 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 02:41:04,692 INFO L225 Difference]: With dead ends: 1575 [2019-09-10 02:41:04,692 INFO L226 Difference]: Without dead ends: 1573 [2019-09-10 02:41:04,692 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2019-09-10 02:41:04,694 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1573 states. [2019-09-10 02:41:04,730 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1573 to 1573. [2019-09-10 02:41:04,730 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1573 states. [2019-09-10 02:41:04,737 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1573 states to 1573 states and 2255 transitions. [2019-09-10 02:41:04,737 INFO L78 Accepts]: Start accepts. Automaton has 1573 states and 2255 transitions. Word has length 197 [2019-09-10 02:41:04,737 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 02:41:04,737 INFO L475 AbstractCegarLoop]: Abstraction has 1573 states and 2255 transitions. [2019-09-10 02:41:04,737 INFO L476 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-09-10 02:41:04,738 INFO L276 IsEmpty]: Start isEmpty. Operand 1573 states and 2255 transitions. [2019-09-10 02:41:04,743 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 196 [2019-09-10 02:41:04,743 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 02:41:04,743 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] [2019-09-10 02:41:04,743 INFO L418 AbstractCegarLoop]: === Iteration 10 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 02:41:04,744 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 02:41:04,744 INFO L82 PathProgramCache]: Analyzing trace with hash 529671264, now seen corresponding path program 1 times [2019-09-10 02:41:04,744 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 02:41:04,745 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:41:04,745 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 02:41:04,745 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:41:04,745 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 02:41:04,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 02:41:04,874 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 02:41:04,875 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 02:41:04,875 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-10 02:41:04,875 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 02:41:04,876 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-10 02:41:04,876 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-10 02:41:04,877 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-10 02:41:04,877 INFO L87 Difference]: Start difference. First operand 1573 states and 2255 transitions. Second operand 3 states. [2019-09-10 02:41:04,902 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 02:41:04,903 INFO L93 Difference]: Finished difference Result 2118 states and 3168 transitions. [2019-09-10 02:41:04,903 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-10 02:41:04,903 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 195 [2019-09-10 02:41:04,904 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 02:41:04,917 INFO L225 Difference]: With dead ends: 2118 [2019-09-10 02:41:04,917 INFO L226 Difference]: Without dead ends: 2118 [2019-09-10 02:41:04,918 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 02:41:04,920 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2118 states. [2019-09-10 02:41:04,986 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2118 to 2117. [2019-09-10 02:41:04,986 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2117 states. [2019-09-10 02:41:04,997 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2117 states to 2117 states and 3167 transitions. [2019-09-10 02:41:04,997 INFO L78 Accepts]: Start accepts. Automaton has 2117 states and 3167 transitions. Word has length 195 [2019-09-10 02:41:04,998 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 02:41:04,998 INFO L475 AbstractCegarLoop]: Abstraction has 2117 states and 3167 transitions. [2019-09-10 02:41:04,998 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-10 02:41:04,998 INFO L276 IsEmpty]: Start isEmpty. Operand 2117 states and 3167 transitions. [2019-09-10 02:41:05,006 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 199 [2019-09-10 02:41:05,007 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 02:41:05,007 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] [2019-09-10 02:41:05,007 INFO L418 AbstractCegarLoop]: === Iteration 11 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 02:41:05,008 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 02:41:05,008 INFO L82 PathProgramCache]: Analyzing trace with hash -809358622, now seen corresponding path program 1 times [2019-09-10 02:41:05,008 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 02:41:05,009 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:41:05,009 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 02:41:05,009 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:41:05,009 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 02:41:05,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 02:41:05,248 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2019-09-10 02:41:05,249 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-10 02:41:05,249 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2019-09-10 02:41:05,250 INFO L205 CegarAbsIntRunner]: Running AI on error trace of length 199 with the following transitions: [2019-09-10 02:41:05,253 INFO L207 CegarAbsIntRunner]: [59], [62], [72], [73], [76], [85], [120], [136], [139], [153], [154], [156], [266], [269], [270], [271], [274], [280], [314], [316], [330], [333], [342], [345], [347], [348], [351], [361], [397], [436], [621], [623], [624], [625], [631], [634], [640], [661], [664], [678], [707], [708], [709], [712], [718], [719], [721], [723], [736], [738], [742], [745], [759], [763], [766], [784], [787], [808], [814], [823], [827], [829], [831], [834], [841], [848], [851], [853], [987], [992], [995], [1004], [1112], [1114], [1115], [1116], [1119], [1121], [1123], [1126], [1145], [1217], [1221], [1232], [1235], [1236], [1239], [1242], [1273], [1274], [1276], [1389], [1392], [1406], [1412], [1415], [1424], [1478], [1481], [1490], [1613], [1615], [1617], [1619], [1620], [1653], [1663], [1664], [1665], [1666], [1667], [1668], [1671], [1672], [1673], [1674], [1687], [1688], [1689], [1690], [1691], [1697], [1698], [1709], [1725], [1726], [1743], [1744], [1757], [1758], [1759], [1760], [1761], [1763], [1764], [1765], [1766], [1767], [1768], [1769], [1770], [1771], [1772], [1773], [1774], [1775], [1776], [1777], [1779], [1780], [1781], [1782], [1789], [1797], [1798], [1813], [1815], [1816], [1817], [1818], [1819], [1820], [1821], [1829], [1830], [1831], [1833], [1834], [1835], [1836], [1837], [1838], [1839], [1851], [1852], [1853], [1854], [1855], [1856], [1857], [1858], [1859] [2019-09-10 02:41:05,319 INFO L148 AbstractInterpreter]: Using domain IntervalDomain [2019-09-10 02:41:05,319 INFO L101 FixpointEngine]: Starting fixpoint engine with domain IntervalDomain (maxUnwinding=3, maxParallelStates=2) [2019-09-10 02:41:05,489 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2019-09-10 02:41:05,491 INFO L272 AbstractInterpreter]: Visited 2 different actions 2 times. Never merged. Never widened. Performed 272 root evaluator evaluations with a maximum evaluation depth of 0. Performed 272 inverse root evaluator evaluations with a maximum inverse evaluation depth of 0. Never found a fixpoint. Largest state had 378 variables. [2019-09-10 02:41:05,496 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 02:41:05,496 INFO L403 sIntCurrentIteration]: Generating AbsInt predicates [2019-09-10 02:41:05,611 INFO L219 lantSequenceWeakener]: Could never weaken! [2019-09-10 02:41:05,612 INFO L418 sIntCurrentIteration]: Unifying AI predicates [2019-09-10 02:41:05,620 INFO L420 sIntCurrentIteration]: We unified 197 AI predicates to 197 [2019-09-10 02:41:05,620 INFO L429 sIntCurrentIteration]: Finished generation of AbsInt predicates [2019-09-10 02:41:05,621 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-09-10 02:41:05,621 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [7] total 7 [2019-09-10 02:41:05,621 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 02:41:05,623 INFO L454 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-09-10 02:41:05,623 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-09-10 02:41:05,623 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-09-10 02:41:05,623 INFO L87 Difference]: Start difference. First operand 2117 states and 3167 transitions. Second operand 2 states. [2019-09-10 02:41:05,624 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 02:41:05,624 INFO L93 Difference]: Finished difference Result 2 states and 1 transitions. [2019-09-10 02:41:05,624 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-09-10 02:41:05,624 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 198 [2019-09-10 02:41:05,625 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 02:41:05,625 INFO L225 Difference]: With dead ends: 2 [2019-09-10 02:41:05,625 INFO L226 Difference]: Without dead ends: 0 [2019-09-10 02:41:05,626 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 197 GetRequests, 197 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 02:41:05,626 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-09-10 02:41:05,626 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-09-10 02:41:05,626 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-09-10 02:41:05,627 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-09-10 02:41:05,627 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 198 [2019-09-10 02:41:05,627 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 02:41:05,627 INFO L475 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-09-10 02:41:05,627 INFO L476 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-09-10 02:41:05,627 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-09-10 02:41:05,628 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-09-10 02:41:05,633 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.09 02:41:05 BoogieIcfgContainer [2019-09-10 02:41:05,633 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-09-10 02:41:05,637 INFO L168 Benchmark]: Toolchain (without parser) took 17295.29 ms. Allocated memory was 131.6 MB in the beginning and 602.4 MB in the end (delta: 470.8 MB). Free memory was 84.7 MB in the beginning and 491.0 MB in the end (delta: -406.3 MB). Peak memory consumption was 64.5 MB. Max. memory is 7.1 GB. [2019-09-10 02:41:05,639 INFO L168 Benchmark]: CDTParser took 1.03 ms. Allocated memory is still 131.6 MB. Free memory was 106.2 MB in the beginning and 106.0 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. [2019-09-10 02:41:05,640 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1091.98 ms. Allocated memory was 131.6 MB in the beginning and 200.3 MB in the end (delta: 68.7 MB). Free memory was 84.5 MB in the beginning and 131.8 MB in the end (delta: -47.4 MB). Peak memory consumption was 33.4 MB. Max. memory is 7.1 GB. [2019-09-10 02:41:05,641 INFO L168 Benchmark]: Boogie Preprocessor took 156.32 ms. Allocated memory is still 200.3 MB. Free memory was 131.8 MB in the beginning and 122.8 MB in the end (delta: 9.0 MB). Peak memory consumption was 9.0 MB. Max. memory is 7.1 GB. [2019-09-10 02:41:05,648 INFO L168 Benchmark]: RCFGBuilder took 2409.65 ms. Allocated memory was 200.3 MB in the beginning and 270.5 MB in the end (delta: 70.3 MB). Free memory was 122.8 MB in the beginning and 176.9 MB in the end (delta: -54.1 MB). Peak memory consumption was 83.7 MB. Max. memory is 7.1 GB. [2019-09-10 02:41:05,649 INFO L168 Benchmark]: TraceAbstraction took 13631.01 ms. Allocated memory was 270.5 MB in the beginning and 602.4 MB in the end (delta: 331.9 MB). Free memory was 176.9 MB in the beginning and 491.0 MB in the end (delta: -314.0 MB). Peak memory consumption was 17.9 MB. Max. memory is 7.1 GB. [2019-09-10 02:41:05,661 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.03 ms. Allocated memory is still 131.6 MB. Free memory was 106.2 MB in the beginning and 106.0 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 1091.98 ms. Allocated memory was 131.6 MB in the beginning and 200.3 MB in the end (delta: 68.7 MB). Free memory was 84.5 MB in the beginning and 131.8 MB in the end (delta: -47.4 MB). Peak memory consumption was 33.4 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 156.32 ms. Allocated memory is still 200.3 MB. Free memory was 131.8 MB in the beginning and 122.8 MB in the end (delta: 9.0 MB). Peak memory consumption was 9.0 MB. Max. memory is 7.1 GB. * RCFGBuilder took 2409.65 ms. Allocated memory was 200.3 MB in the beginning and 270.5 MB in the end (delta: 70.3 MB). Free memory was 122.8 MB in the beginning and 176.9 MB in the end (delta: -54.1 MB). Peak memory consumption was 83.7 MB. Max. memory is 7.1 GB. * TraceAbstraction took 13631.01 ms. Allocated memory was 270.5 MB in the beginning and 602.4 MB in the end (delta: 331.9 MB). Free memory was 176.9 MB in the beginning and 491.0 MB in the end (delta: -314.0 MB). Peak memory consumption was 17.9 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 1831]: 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 112 procedures, 761 locations, 1 error locations. SAFE Result, 13.5s OverallTime, 11 OverallIterations, 3 TraceHistogramMax, 9.5s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 6310 SDtfs, 3540 SDslu, 14314 SDs, 0 SdLazy, 7795 SolverSat, 1555 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 7.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 302 GetRequests, 231 SyntacticMatches, 0 SemanticMatches, 71 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 449 ImplicationChecksByTransitivity, 0.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=2186occurred 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, 2.203045685279188 AbsIntAvgWeakeningVarsNumRemoved, 0.0 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.4s AutomataMinimizationTime, 11 MinimizatonAttempts, 143 StatesRemovedByMinimization, 8 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.2s SsaConstructionTime, 0.6s SatisfiabilityAnalysisTime, 1.4s InterpolantComputationTime, 2036 NumberOfCodeBlocks, 2036 NumberOfCodeBlocksAsserted, 11 NumberOfCheckSat, 2025 ConstructedInterpolants, 0 QuantifiedInterpolants, 443587 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 11 InterpolantComputations, 10 PerfectInterpolantSequences, 323/326 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...