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_spec4_product34.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-112bae1 [2019-09-10 02:41:39,350 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-09-10 02:41:39,352 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-09-10 02:41:39,364 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-09-10 02:41:39,364 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-09-10 02:41:39,366 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-09-10 02:41:39,367 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-09-10 02:41:39,372 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-09-10 02:41:39,374 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-09-10 02:41:39,375 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-09-10 02:41:39,376 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-09-10 02:41:39,377 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-09-10 02:41:39,377 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-09-10 02:41:39,378 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-09-10 02:41:39,379 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-09-10 02:41:39,381 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-09-10 02:41:39,381 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-09-10 02:41:39,385 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-09-10 02:41:39,388 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-09-10 02:41:39,390 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-09-10 02:41:39,395 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-09-10 02:41:39,396 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-09-10 02:41:39,399 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-09-10 02:41:39,400 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-09-10 02:41:39,402 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-09-10 02:41:39,402 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-09-10 02:41:39,402 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-09-10 02:41:39,403 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-09-10 02:41:39,404 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-09-10 02:41:39,405 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-09-10 02:41:39,405 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-09-10 02:41:39,406 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-09-10 02:41:39,406 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-09-10 02:41:39,407 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-09-10 02:41:39,408 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-09-10 02:41:39,408 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-09-10 02:41:39,409 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-09-10 02:41:39,409 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-09-10 02:41:39,409 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-09-10 02:41:39,410 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-09-10 02:41:39,411 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-09-10 02:41:39,412 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 02:41:39,429 INFO L113 SettingsManager]: Loading preferences was successful [2019-09-10 02:41:39,429 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-09-10 02:41:39,430 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2019-09-10 02:41:39,430 INFO L138 SettingsManager]: * Log level for plugins=info [2019-09-10 02:41:39,431 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-09-10 02:41:39,431 INFO L138 SettingsManager]: * User list type=DISABLED [2019-09-10 02:41:39,431 INFO L138 SettingsManager]: * Ignore calls to and inside polymorphic procedures=false [2019-09-10 02:41:39,431 INFO L138 SettingsManager]: * Ignore calls to recursive procedures=false [2019-09-10 02:41:39,432 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-09-10 02:41:39,432 INFO L138 SettingsManager]: * Abstract domain=IntervalDomain [2019-09-10 02:41:39,432 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-09-10 02:41:39,433 INFO L138 SettingsManager]: * sizeof long=4 [2019-09-10 02:41:39,433 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-09-10 02:41:39,433 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-09-10 02:41:39,433 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-09-10 02:41:39,434 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-09-10 02:41:39,434 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-09-10 02:41:39,434 INFO L138 SettingsManager]: * sizeof long double=12 [2019-09-10 02:41:39,434 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-09-10 02:41:39,434 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-09-10 02:41:39,435 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-09-10 02:41:39,435 INFO L138 SettingsManager]: * Remove goto edges from RCFG=true [2019-09-10 02:41:39,435 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-09-10 02:41:39,435 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-09-10 02:41:39,436 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-09-10 02:41:39,436 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-09-10 02:41:39,436 INFO L138 SettingsManager]: * Trace refinement strategy=TAIPAN [2019-09-10 02:41:39,436 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-09-10 02:41:39,436 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-09-10 02:41:39,437 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2019-09-10 02:41:39,480 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-09-10 02:41:39,497 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-09-10 02:41:39,501 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-09-10 02:41:39,502 INFO L271 PluginConnector]: Initializing CDTParser... [2019-09-10 02:41:39,503 INFO L275 PluginConnector]: CDTParser initialized [2019-09-10 02:41:39,504 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/email_spec4_product34.cil.c [2019-09-10 02:41:39,564 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/00991acb4/0cc435f8553b4e679ef0159fc4164acf/FLAGa2c7fa2cb [2019-09-10 02:41:40,221 INFO L306 CDTParser]: Found 1 translation units. [2019-09-10 02:41:40,221 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/email_spec4_product34.cil.c [2019-09-10 02:41:40,243 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/00991acb4/0cc435f8553b4e679ef0159fc4164acf/FLAGa2c7fa2cb [2019-09-10 02:41:40,433 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/00991acb4/0cc435f8553b4e679ef0159fc4164acf [2019-09-10 02:41:40,445 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-09-10 02:41:40,447 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-09-10 02:41:40,449 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-09-10 02:41:40,449 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-09-10 02:41:40,455 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-09-10 02:41:40,456 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.09 02:41:40" (1/1) ... [2019-09-10 02:41:40,459 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@19b57f2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 02:41:40, skipping insertion in model container [2019-09-10 02:41:40,459 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.09 02:41:40" (1/1) ... [2019-09-10 02:41:40,468 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-09-10 02:41:40,564 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-09-10 02:41:41,359 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-10 02:41:41,383 INFO L188 MainTranslator]: Completed pre-run [2019-09-10 02:41:41,497 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-10 02:41:41,599 INFO L192 MainTranslator]: Completed translation [2019-09-10 02:41:41,599 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 02:41:41 WrapperNode [2019-09-10 02:41:41,600 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-09-10 02:41:41,600 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-09-10 02:41:41,601 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-09-10 02:41:41,601 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-09-10 02:41:41,616 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 02:41:41" (1/1) ... [2019-09-10 02:41:41,616 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 02:41:41" (1/1) ... [2019-09-10 02:41:41,651 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 02:41:41" (1/1) ... [2019-09-10 02:41:41,652 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 02:41:41" (1/1) ... [2019-09-10 02:41:41,770 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 02:41:41" (1/1) ... [2019-09-10 02:41:41,815 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 02:41:41" (1/1) ... [2019-09-10 02:41:41,834 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 02:41:41" (1/1) ... [2019-09-10 02:41:41,850 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-09-10 02:41:41,851 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-09-10 02:41:41,851 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-09-10 02:41:41,852 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-09-10 02:41:41,852 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 02:41:41" (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 02:41:41,951 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-09-10 02:41:41,951 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-09-10 02:41:41,951 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-09-10 02:41:41,952 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-09-10 02:41:41,952 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob__wrappee__Base [2019-09-10 02:41:41,952 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob [2019-09-10 02:41:41,952 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh__wrappee__Base [2019-09-10 02:41:41,953 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh [2019-09-10 02:41:41,953 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck__wrappee__Base [2019-09-10 02:41:41,953 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck [2019-09-10 02:41:41,953 INFO L138 BoogieDeclarations]: Found implementation of procedure bobToRjh [2019-09-10 02:41:41,954 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhToBob [2019-09-10 02:41:41,954 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-09-10 02:41:41,955 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-09-10 02:41:41,955 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAdd [2019-09-10 02:41:41,956 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAdd [2019-09-10 02:41:41,956 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAddChuck [2019-09-10 02:41:41,956 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAddChuck [2019-09-10 02:41:41,957 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2019-09-10 02:41:41,957 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAddRjh [2019-09-10 02:41:41,959 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhDeletePrivateKey [2019-09-10 02:41:41,959 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyChange [2019-09-10 02:41:41,960 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyChange [2019-09-10 02:41:41,960 INFO L138 BoogieDeclarations]: Found implementation of procedure bobSetAddressBook [2019-09-10 02:41:41,960 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhEnableForwarding [2019-09-10 02:41:41,960 INFO L138 BoogieDeclarations]: Found implementation of procedure initClient [2019-09-10 02:41:41,960 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientName [2019-09-10 02:41:41,961 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientName [2019-09-10 02:41:41,961 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientOutbuffer [2019-09-10 02:41:41,961 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientOutbuffer [2019-09-10 02:41:41,961 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookSize [2019-09-10 02:41:41,961 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookSize [2019-09-10 02:41:41,961 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientAddressBookEntry [2019-09-10 02:41:41,961 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAlias [2019-09-10 02:41:41,962 INFO L138 BoogieDeclarations]: Found implementation of procedure findClientAddressBookAlias [2019-09-10 02:41:41,962 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAlias [2019-09-10 02:41:41,962 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAddress [2019-09-10 02:41:41,962 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAddress [2019-09-10 02:41:41,962 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAutoResponse [2019-09-10 02:41:41,962 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAutoResponse [2019-09-10 02:41:41,963 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientPrivateKey [2019-09-10 02:41:41,963 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2019-09-10 02:41:41,963 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringSize [2019-09-10 02:41:41,963 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringSize [2019-09-10 02:41:41,963 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2019-09-10 02:41:41,963 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringUser [2019-09-10 02:41:41,963 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2019-09-10 02:41:41,964 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringPublicKey [2019-09-10 02:41:41,964 INFO L138 BoogieDeclarations]: Found implementation of procedure findPublicKey [2019-09-10 02:41:41,964 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2019-09-10 02:41:41,964 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientForwardReceiver [2019-09-10 02:41:41,964 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientForwardReceiver [2019-09-10 02:41:41,964 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientId [2019-09-10 02:41:41,965 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2019-09-10 02:41:41,965 INFO L138 BoogieDeclarations]: Found implementation of procedure mail [2019-09-10 02:41:41,965 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__Keys [2019-09-10 02:41:41,965 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__Encrypt [2019-09-10 02:41:41,965 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__AddressBook [2019-09-10 02:41:41,965 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2019-09-10 02:41:41,965 INFO L138 BoogieDeclarations]: Found implementation of procedure deliver [2019-09-10 02:41:41,966 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Sign [2019-09-10 02:41:41,966 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Forward [2019-09-10 02:41:41,966 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Verify [2019-09-10 02:41:41,966 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming [2019-09-10 02:41:41,966 INFO L138 BoogieDeclarations]: Found implementation of procedure createClient [2019-09-10 02:41:41,966 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2019-09-10 02:41:41,967 INFO L138 BoogieDeclarations]: Found implementation of procedure queue [2019-09-10 02:41:41,967 INFO L138 BoogieDeclarations]: Found implementation of procedure is_queue_empty [2019-09-10 02:41:41,967 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_client [2019-09-10 02:41:41,967 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_email [2019-09-10 02:41:41,967 INFO L138 BoogieDeclarations]: Found implementation of procedure isKeyPairValid [2019-09-10 02:41:41,967 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2019-09-10 02:41:41,968 INFO L138 BoogieDeclarations]: Found implementation of procedure sendToAddressBook [2019-09-10 02:41:41,968 INFO L138 BoogieDeclarations]: Found implementation of procedure sign [2019-09-10 02:41:41,968 INFO L138 BoogieDeclarations]: Found implementation of procedure forward [2019-09-10 02:41:41,968 INFO L138 BoogieDeclarations]: Found implementation of procedure verify [2019-09-10 02:41:41,968 INFO L138 BoogieDeclarations]: Found implementation of procedure initEmail [2019-09-10 02:41:41,968 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailId [2019-09-10 02:41:41,969 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailId [2019-09-10 02:41:41,969 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2019-09-10 02:41:41,969 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2019-09-10 02:41:41,969 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2019-09-10 02:41:41,969 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2019-09-10 02:41:41,969 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSubject [2019-09-10 02:41:41,970 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSubject [2019-09-10 02:41:41,970 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailBody [2019-09-10 02:41:41,970 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailBody [2019-09-10 02:41:41,970 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2019-09-10 02:41:41,970 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2019-09-10 02:41:41,971 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2019-09-10 02:41:41,971 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2019-09-10 02:41:41,971 INFO L138 BoogieDeclarations]: Found implementation of procedure isSigned [2019-09-10 02:41:41,971 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSigned [2019-09-10 02:41:41,971 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSignKey [2019-09-10 02:41:41,971 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSignKey [2019-09-10 02:41:41,972 INFO L138 BoogieDeclarations]: Found implementation of procedure isVerified [2019-09-10 02:41:41,972 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSignatureVerified [2019-09-10 02:41:41,972 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-09-10 02:41:41,972 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-09-10 02:41:41,972 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-09-10 02:41:41,973 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-09-10 02:41:41,973 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-09-10 02:41:41,973 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__SignForward_spec__1 [2019-09-10 02:41:41,973 INFO L138 BoogieDeclarations]: Found implementation of procedure prompt [2019-09-10 02:41:41,973 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__Keys [2019-09-10 02:41:41,973 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__AddressBook [2019-09-10 02:41:41,974 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__Forward [2019-09-10 02:41:41,974 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail [2019-09-10 02:41:41,974 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable__wrappee__Keys [2019-09-10 02:41:41,974 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2019-09-10 02:41:41,974 INFO L138 BoogieDeclarations]: Found implementation of procedure cloneEmail [2019-09-10 02:41:41,974 INFO L138 BoogieDeclarations]: Found implementation of procedure createEmail [2019-09-10 02:41:41,975 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-09-10 02:41:41,975 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-09-10 02:41:41,975 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-09-10 02:41:41,975 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-09-10 02:41:41,975 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-09-10 02:41:41,976 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-09-10 02:41:41,976 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-09-10 02:41:41,976 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-09-10 02:41:41,976 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-09-10 02:41:41,976 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-09-10 02:41:41,977 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2019-09-10 02:41:41,977 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookSize [2019-09-10 02:41:41,977 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAlias [2019-09-10 02:41:41,977 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAddress [2019-09-10 02:41:41,977 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2019-09-10 02:41:41,978 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2019-09-10 02:41:41,978 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringUser [2019-09-10 02:41:41,978 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2019-09-10 02:41:41,978 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringPublicKey [2019-09-10 02:41:41,978 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2019-09-10 02:41:41,979 INFO L130 BoogieDeclarations]: Found specification of procedure setClientForwardReceiver [2019-09-10 02:41:41,979 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2019-09-10 02:41:41,979 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-09-10 02:41:41,979 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-09-10 02:41:41,979 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-09-10 02:41:41,979 INFO L130 BoogieDeclarations]: Found specification of procedure is_queue_empty [2019-09-10 02:41:41,980 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_client [2019-09-10 02:41:41,980 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_email [2019-09-10 02:41:41,980 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2019-09-10 02:41:41,980 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2019-09-10 02:41:41,980 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2019-09-10 02:41:41,981 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob [2019-09-10 02:41:41,981 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh [2019-09-10 02:41:41,981 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck [2019-09-10 02:41:41,981 INFO L130 BoogieDeclarations]: Found specification of procedure bobToRjh [2019-09-10 02:41:41,981 INFO L130 BoogieDeclarations]: Found specification of procedure rjhToBob [2019-09-10 02:41:41,982 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-09-10 02:41:41,982 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-09-10 02:41:41,982 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-09-10 02:41:41,982 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAdd [2019-09-10 02:41:41,982 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAddChuck [2019-09-10 02:41:41,983 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAdd [2019-09-10 02:41:41,983 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAddChuck [2019-09-10 02:41:41,983 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2019-09-10 02:41:41,983 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyChange [2019-09-10 02:41:41,983 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyChange [2019-09-10 02:41:41,984 INFO L130 BoogieDeclarations]: Found specification of procedure rjhDeletePrivateKey [2019-09-10 02:41:41,984 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAddRjh [2019-09-10 02:41:41,984 INFO L130 BoogieDeclarations]: Found specification of procedure bobSetAddressBook [2019-09-10 02:41:41,984 INFO L130 BoogieDeclarations]: Found specification of procedure rjhEnableForwarding [2019-09-10 02:41:41,984 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob__wrappee__Base [2019-09-10 02:41:41,985 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh__wrappee__Base [2019-09-10 02:41:41,985 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck__wrappee__Base [2019-09-10 02:41:41,985 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-09-10 02:41:41,985 INFO L130 BoogieDeclarations]: Found specification of procedure initClient [2019-09-10 02:41:41,985 INFO L130 BoogieDeclarations]: Found specification of procedure getClientName [2019-09-10 02:41:41,986 INFO L130 BoogieDeclarations]: Found specification of procedure setClientName [2019-09-10 02:41:41,986 INFO L130 BoogieDeclarations]: Found specification of procedure getClientOutbuffer [2019-09-10 02:41:41,986 INFO L130 BoogieDeclarations]: Found specification of procedure setClientOutbuffer [2019-09-10 02:41:41,986 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookSize [2019-09-10 02:41:41,986 INFO L130 BoogieDeclarations]: Found specification of procedure createClientAddressBookEntry [2019-09-10 02:41:41,986 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAlias [2019-09-10 02:41:41,987 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAddress [2019-09-10 02:41:41,987 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAutoResponse [2019-09-10 02:41:41,987 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAutoResponse [2019-09-10 02:41:41,987 INFO L130 BoogieDeclarations]: Found specification of procedure getClientPrivateKey [2019-09-10 02:41:41,987 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringSize [2019-09-10 02:41:41,988 INFO L130 BoogieDeclarations]: Found specification of procedure getClientForwardReceiver [2019-09-10 02:41:41,988 INFO L130 BoogieDeclarations]: Found specification of procedure getClientId [2019-09-10 02:41:41,988 INFO L130 BoogieDeclarations]: Found specification of procedure findPublicKey [2019-09-10 02:41:41,988 INFO L130 BoogieDeclarations]: Found specification of procedure findClientAddressBookAlias [2019-09-10 02:41:41,988 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringSize [2019-09-10 02:41:41,988 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2019-09-10 02:41:41,989 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2019-09-10 02:41:41,989 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2019-09-10 02:41:41,989 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2019-09-10 02:41:41,989 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2019-09-10 02:41:41,989 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2019-09-10 02:41:41,989 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2019-09-10 02:41:41,990 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2019-09-10 02:41:41,990 INFO L130 BoogieDeclarations]: Found specification of procedure isSigned [2019-09-10 02:41:41,990 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSigned [2019-09-10 02:41:41,990 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSignKey [2019-09-10 02:41:41,990 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSignKey [2019-09-10 02:41:41,990 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSignatureVerified [2019-09-10 02:41:41,991 INFO L130 BoogieDeclarations]: Found specification of procedure printMail [2019-09-10 02:41:41,991 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2019-09-10 02:41:41,991 INFO L130 BoogieDeclarations]: Found specification of procedure createEmail [2019-09-10 02:41:41,991 INFO L130 BoogieDeclarations]: Found specification of procedure queue [2019-09-10 02:41:41,991 INFO L130 BoogieDeclarations]: Found specification of procedure mail [2019-09-10 02:41:41,992 INFO L130 BoogieDeclarations]: Found specification of procedure deliver [2019-09-10 02:41:41,992 INFO L130 BoogieDeclarations]: Found specification of procedure incoming [2019-09-10 02:41:41,992 INFO L130 BoogieDeclarations]: Found specification of procedure createClient [2019-09-10 02:41:41,992 INFO L130 BoogieDeclarations]: Found specification of procedure isKeyPairValid [2019-09-10 02:41:41,992 INFO L130 BoogieDeclarations]: Found specification of procedure sendToAddressBook [2019-09-10 02:41:41,992 INFO L130 BoogieDeclarations]: Found specification of procedure sign [2019-09-10 02:41:41,993 INFO L130 BoogieDeclarations]: Found specification of procedure forward [2019-09-10 02:41:41,993 INFO L130 BoogieDeclarations]: Found specification of procedure verify [2019-09-10 02:41:41,993 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__SignForward_spec__1 [2019-09-10 02:41:41,993 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__Keys [2019-09-10 02:41:41,993 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__Encrypt [2019-09-10 02:41:41,993 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__AddressBook [2019-09-10 02:41:41,994 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Sign [2019-09-10 02:41:41,994 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Forward [2019-09-10 02:41:41,994 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Verify [2019-09-10 02:41:41,994 INFO L130 BoogieDeclarations]: Found specification of procedure initEmail [2019-09-10 02:41:41,994 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailId [2019-09-10 02:41:41,995 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailId [2019-09-10 02:41:41,995 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSubject [2019-09-10 02:41:41,995 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSubject [2019-09-10 02:41:41,995 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailBody [2019-09-10 02:41:41,995 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailBody [2019-09-10 02:41:41,995 INFO L130 BoogieDeclarations]: Found specification of procedure isVerified [2019-09-10 02:41:41,996 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-09-10 02:41:41,996 INFO L130 BoogieDeclarations]: Found specification of procedure prompt [2019-09-10 02:41:41,996 INFO L130 BoogieDeclarations]: Found specification of procedure cloneEmail [2019-09-10 02:41:41,996 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__Keys [2019-09-10 02:41:41,996 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__AddressBook [2019-09-10 02:41:41,996 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__Forward [2019-09-10 02:41:41,997 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable__wrappee__Keys [2019-09-10 02:41:41,997 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-09-10 02:41:41,997 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-09-10 02:41:41,997 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-09-10 02:41:41,997 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-09-10 02:41:41,997 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-09-10 02:41:41,998 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-09-10 02:41:41,998 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-09-10 02:41:41,998 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-09-10 02:41:41,998 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-09-10 02:41:41,998 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-09-10 02:41:41,998 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-09-10 02:41:41,999 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-09-10 02:41:41,999 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-09-10 02:41:41,999 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-09-10 02:41:41,999 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-09-10 02:41:41,999 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-09-10 02:41:41,999 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-09-10 02:41:42,000 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-09-10 02:41:42,000 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-09-10 02:41:44,251 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-09-10 02:41:44,252 INFO L283 CfgBuilder]: Removed 4 assume(true) statements. [2019-09-10 02:41:44,254 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.09 02:41:44 BoogieIcfgContainer [2019-09-10 02:41:44,255 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-09-10 02:41:44,256 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-09-10 02:41:44,256 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-09-10 02:41:44,260 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-09-10 02:41:44,260 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.09 02:41:40" (1/3) ... [2019-09-10 02:41:44,261 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7f0871ff and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.09 02:41:44, skipping insertion in model container [2019-09-10 02:41:44,261 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 02:41:41" (2/3) ... [2019-09-10 02:41:44,262 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7f0871ff and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.09 02:41:44, skipping insertion in model container [2019-09-10 02:41:44,263 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.09 02:41:44" (3/3) ... [2019-09-10 02:41:44,264 INFO L109 eAbstractionObserver]: Analyzing ICFG email_spec4_product34.cil.c [2019-09-10 02:41:44,276 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-09-10 02:41:44,291 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-09-10 02:41:44,310 INFO L252 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-09-10 02:41:44,344 INFO L377 AbstractCegarLoop]: Interprodecural is true [2019-09-10 02:41:44,344 INFO L378 AbstractCegarLoop]: Hoare is false [2019-09-10 02:41:44,345 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-09-10 02:41:44,345 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-09-10 02:41:44,354 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-09-10 02:41:44,354 INFO L382 AbstractCegarLoop]: Difference is false [2019-09-10 02:41:44,354 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-09-10 02:41:44,354 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-09-10 02:41:44,395 INFO L276 IsEmpty]: Start isEmpty. Operand 651 states. [2019-09-10 02:41:44,437 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 174 [2019-09-10 02:41:44,437 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 02:41:44,439 INFO L399 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-10 02:41:44,442 INFO L418 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 02:41:44,448 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 02:41:44,449 INFO L82 PathProgramCache]: Analyzing trace with hash 584038483, now seen corresponding path program 1 times [2019-09-10 02:41:44,452 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 02:41:44,508 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:41:44,508 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 02:41:44,509 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:41:44,509 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 02:41:44,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 02:41:45,088 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2019-09-10 02:41:45,091 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 02:41:45,091 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-09-10 02:41:45,091 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 02:41:45,098 INFO L454 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-09-10 02:41:45,114 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-09-10 02:41:45,115 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-09-10 02:41:45,117 INFO L87 Difference]: Start difference. First operand 651 states. Second operand 2 states. [2019-09-10 02:41:45,198 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 02:41:45,198 INFO L93 Difference]: Finished difference Result 631 states and 855 transitions. [2019-09-10 02:41:45,198 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-09-10 02:41:45,200 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 173 [2019-09-10 02:41:45,201 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 02:41:45,232 INFO L225 Difference]: With dead ends: 631 [2019-09-10 02:41:45,232 INFO L226 Difference]: Without dead ends: 622 [2019-09-10 02:41:45,234 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 02:41:45,256 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 622 states. [2019-09-10 02:41:45,347 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 622 to 622. [2019-09-10 02:41:45,348 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 622 states. [2019-09-10 02:41:45,355 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 622 states to 622 states and 844 transitions. [2019-09-10 02:41:45,357 INFO L78 Accepts]: Start accepts. Automaton has 622 states and 844 transitions. Word has length 173 [2019-09-10 02:41:45,359 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 02:41:45,359 INFO L475 AbstractCegarLoop]: Abstraction has 622 states and 844 transitions. [2019-09-10 02:41:45,359 INFO L476 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-09-10 02:41:45,359 INFO L276 IsEmpty]: Start isEmpty. Operand 622 states and 844 transitions. [2019-09-10 02:41:45,364 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 175 [2019-09-10 02:41:45,364 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 02:41:45,365 INFO L399 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-10 02:41:45,365 INFO L418 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 02:41:45,365 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 02:41:45,366 INFO L82 PathProgramCache]: Analyzing trace with hash 1802223721, now seen corresponding path program 1 times [2019-09-10 02:41:45,366 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 02:41:45,367 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:41:45,367 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 02:41:45,367 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:41:45,367 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 02:41:45,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 02:41:45,661 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2019-09-10 02:41:45,661 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 02:41:45,661 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-10 02:41:45,661 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 02:41:45,664 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-10 02:41:45,665 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-10 02:41:45,665 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-10 02:41:45,666 INFO L87 Difference]: Start difference. First operand 622 states and 844 transitions. Second operand 3 states. [2019-09-10 02:41:45,723 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 02:41:45,723 INFO L93 Difference]: Finished difference Result 625 states and 847 transitions. [2019-09-10 02:41:45,723 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-10 02:41:45,724 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 174 [2019-09-10 02:41:45,724 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 02:41:45,729 INFO L225 Difference]: With dead ends: 625 [2019-09-10 02:41:45,730 INFO L226 Difference]: Without dead ends: 625 [2019-09-10 02:41:45,731 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 02:41:45,732 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 625 states. [2019-09-10 02:41:45,757 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 625 to 624. [2019-09-10 02:41:45,757 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 624 states. [2019-09-10 02:41:45,762 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 624 states to 624 states and 846 transitions. [2019-09-10 02:41:45,762 INFO L78 Accepts]: Start accepts. Automaton has 624 states and 846 transitions. Word has length 174 [2019-09-10 02:41:45,763 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 02:41:45,763 INFO L475 AbstractCegarLoop]: Abstraction has 624 states and 846 transitions. [2019-09-10 02:41:45,763 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-10 02:41:45,763 INFO L276 IsEmpty]: Start isEmpty. Operand 624 states and 846 transitions. [2019-09-10 02:41:45,766 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 181 [2019-09-10 02:41:45,767 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 02:41:45,767 INFO L399 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-10 02:41:45,767 INFO L418 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 02:41:45,767 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 02:41:45,768 INFO L82 PathProgramCache]: Analyzing trace with hash 617230005, now seen corresponding path program 1 times [2019-09-10 02:41:45,768 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 02:41:45,769 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:41:45,769 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 02:41:45,769 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:41:45,769 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 02:41:45,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 02:41:45,972 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2019-09-10 02:41:45,972 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 02:41:45,972 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-10 02:41:45,972 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 02:41:45,973 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-10 02:41:45,973 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-10 02:41:45,974 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-10 02:41:45,974 INFO L87 Difference]: Start difference. First operand 624 states and 846 transitions. Second operand 3 states. [2019-09-10 02:41:46,003 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 02:41:46,003 INFO L93 Difference]: Finished difference Result 667 states and 919 transitions. [2019-09-10 02:41:46,005 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-10 02:41:46,005 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 180 [2019-09-10 02:41:46,006 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 02:41:46,013 INFO L225 Difference]: With dead ends: 667 [2019-09-10 02:41:46,013 INFO L226 Difference]: Without dead ends: 667 [2019-09-10 02:41:46,014 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 02:41:46,015 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 667 states. [2019-09-10 02:41:46,051 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 667 to 666. [2019-09-10 02:41:46,052 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 666 states. [2019-09-10 02:41:46,058 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 666 states to 666 states and 918 transitions. [2019-09-10 02:41:46,058 INFO L78 Accepts]: Start accepts. Automaton has 666 states and 918 transitions. Word has length 180 [2019-09-10 02:41:46,060 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 02:41:46,060 INFO L475 AbstractCegarLoop]: Abstraction has 666 states and 918 transitions. [2019-09-10 02:41:46,061 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-10 02:41:46,061 INFO L276 IsEmpty]: Start isEmpty. Operand 666 states and 918 transitions. [2019-09-10 02:41:46,069 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 182 [2019-09-10 02:41:46,070 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 02:41:46,070 INFO L399 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-10 02:41:46,070 INFO L418 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 02:41:46,071 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 02:41:46,071 INFO L82 PathProgramCache]: Analyzing trace with hash -1159489603, now seen corresponding path program 1 times [2019-09-10 02:41:46,071 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 02:41:46,074 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:41:46,074 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 02:41:46,074 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:41:46,075 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 02:41:46,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 02:41:46,392 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2019-09-10 02:41:46,392 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 02:41:46,392 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-09-10 02:41:46,392 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 02:41:46,393 INFO L454 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-09-10 02:41:46,393 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-09-10 02:41:46,394 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-09-10 02:41:46,394 INFO L87 Difference]: Start difference. First operand 666 states and 918 transitions. Second operand 7 states. [2019-09-10 02:41:50,961 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 02:41:50,961 INFO L93 Difference]: Finished difference Result 1017 states and 1376 transitions. [2019-09-10 02:41:50,962 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2019-09-10 02:41:50,962 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 181 [2019-09-10 02:41:50,963 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 02:41:50,969 INFO L225 Difference]: With dead ends: 1017 [2019-09-10 02:41:50,970 INFO L226 Difference]: Without dead ends: 1015 [2019-09-10 02:41:50,970 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=43, Invalid=113, Unknown=0, NotChecked=0, Total=156 [2019-09-10 02:41:50,972 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1015 states. [2019-09-10 02:41:51,001 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1015 to 1006. [2019-09-10 02:41:51,002 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1006 states. [2019-09-10 02:41:51,008 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1006 states to 1006 states and 1364 transitions. [2019-09-10 02:41:51,008 INFO L78 Accepts]: Start accepts. Automaton has 1006 states and 1364 transitions. Word has length 181 [2019-09-10 02:41:51,009 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 02:41:51,009 INFO L475 AbstractCegarLoop]: Abstraction has 1006 states and 1364 transitions. [2019-09-10 02:41:51,009 INFO L476 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-09-10 02:41:51,009 INFO L276 IsEmpty]: Start isEmpty. Operand 1006 states and 1364 transitions. [2019-09-10 02:41:51,013 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2019-09-10 02:41:51,013 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 02:41:51,013 INFO L399 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-10 02:41:51,014 INFO L418 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 02:41:51,014 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 02:41:51,014 INFO L82 PathProgramCache]: Analyzing trace with hash -1387990107, now seen corresponding path program 1 times [2019-09-10 02:41:51,014 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 02:41:51,015 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:41:51,015 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 02:41:51,016 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:41:51,016 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 02:41:51,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 02:41:51,398 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2019-09-10 02:41:51,399 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 02:41:51,399 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [20] imperfect sequences [] total 20 [2019-09-10 02:41:51,399 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 02:41:51,400 INFO L454 AbstractCegarLoop]: Interpolant automaton has 20 states [2019-09-10 02:41:51,400 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2019-09-10 02:41:51,401 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=343, Unknown=0, NotChecked=0, Total=380 [2019-09-10 02:41:51,401 INFO L87 Difference]: Start difference. First operand 1006 states and 1364 transitions. Second operand 20 states. [2019-09-10 02:41:52,011 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 02:41:52,011 INFO L93 Difference]: Finished difference Result 1124 states and 1529 transitions. [2019-09-10 02:41:52,012 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2019-09-10 02:41:52,012 INFO L78 Accepts]: Start accepts. Automaton has 20 states. Word has length 182 [2019-09-10 02:41:52,012 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 02:41:52,022 INFO L225 Difference]: With dead ends: 1124 [2019-09-10 02:41:52,022 INFO L226 Difference]: Without dead ends: 1116 [2019-09-10 02:41:52,023 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=69, Invalid=687, Unknown=0, NotChecked=0, Total=756 [2019-09-10 02:41:52,025 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1116 states. [2019-09-10 02:41:52,117 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1116 to 1114. [2019-09-10 02:41:52,117 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1114 states. [2019-09-10 02:41:52,130 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1114 states to 1114 states and 1517 transitions. [2019-09-10 02:41:52,131 INFO L78 Accepts]: Start accepts. Automaton has 1114 states and 1517 transitions. Word has length 182 [2019-09-10 02:41:52,133 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 02:41:52,134 INFO L475 AbstractCegarLoop]: Abstraction has 1114 states and 1517 transitions. [2019-09-10 02:41:52,134 INFO L476 AbstractCegarLoop]: Interpolant automaton has 20 states. [2019-09-10 02:41:52,134 INFO L276 IsEmpty]: Start isEmpty. Operand 1114 states and 1517 transitions. [2019-09-10 02:41:52,138 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 192 [2019-09-10 02:41:52,138 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 02:41:52,138 INFO L399 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-10 02:41:52,138 INFO L418 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 02:41:52,139 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 02:41:52,139 INFO L82 PathProgramCache]: Analyzing trace with hash -1283396091, now seen corresponding path program 1 times [2019-09-10 02:41:52,140 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 02:41:52,146 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:41:52,146 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 02:41:52,146 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:41:52,146 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 02:41:52,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 02:41:52,369 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2019-09-10 02:41:52,370 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 02:41:52,370 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-09-10 02:41:52,370 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 02:41:52,371 INFO L454 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-09-10 02:41:52,371 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-09-10 02:41:52,372 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2019-09-10 02:41:52,372 INFO L87 Difference]: Start difference. First operand 1114 states and 1517 transitions. Second operand 8 states. [2019-09-10 02:41:54,342 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 02:41:54,342 INFO L93 Difference]: Finished difference Result 1942 states and 2621 transitions. [2019-09-10 02:41:54,343 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2019-09-10 02:41:54,343 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 191 [2019-09-10 02:41:54,344 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 02:41:54,359 INFO L225 Difference]: With dead ends: 1942 [2019-09-10 02:41:54,359 INFO L226 Difference]: Without dead ends: 1942 [2019-09-10 02:41:54,360 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=33, Invalid=123, Unknown=0, NotChecked=0, Total=156 [2019-09-10 02:41:54,363 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1942 states. [2019-09-10 02:41:54,422 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1942 to 1923. [2019-09-10 02:41:54,422 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1923 states. [2019-09-10 02:41:54,435 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1923 states to 1923 states and 2602 transitions. [2019-09-10 02:41:54,436 INFO L78 Accepts]: Start accepts. Automaton has 1923 states and 2602 transitions. Word has length 191 [2019-09-10 02:41:54,436 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 02:41:54,437 INFO L475 AbstractCegarLoop]: Abstraction has 1923 states and 2602 transitions. [2019-09-10 02:41:54,437 INFO L476 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-09-10 02:41:54,437 INFO L276 IsEmpty]: Start isEmpty. Operand 1923 states and 2602 transitions. [2019-09-10 02:41:54,441 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 193 [2019-09-10 02:41:54,442 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 02:41:54,442 INFO L399 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-10 02:41:54,442 INFO L418 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 02:41:54,443 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 02:41:54,443 INFO L82 PathProgramCache]: Analyzing trace with hash -1332265395, now seen corresponding path program 1 times [2019-09-10 02:41:54,443 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 02:41:54,444 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:41:54,444 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 02:41:54,444 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:41:54,444 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 02:41:54,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 02:41:54,839 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2019-09-10 02:41:54,839 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 02:41:54,839 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2019-09-10 02:41:54,839 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 02:41:54,840 INFO L454 AbstractCegarLoop]: Interpolant automaton has 19 states [2019-09-10 02:41:54,840 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2019-09-10 02:41:54,841 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=307, Unknown=0, NotChecked=0, Total=342 [2019-09-10 02:41:54,841 INFO L87 Difference]: Start difference. First operand 1923 states and 2602 transitions. Second operand 19 states. [2019-09-10 02:41:55,965 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 02:41:55,966 INFO L93 Difference]: Finished difference Result 1922 states and 2598 transitions. [2019-09-10 02:41:55,966 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2019-09-10 02:41:55,966 INFO L78 Accepts]: Start accepts. Automaton has 19 states. Word has length 192 [2019-09-10 02:41:55,967 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 02:41:55,981 INFO L225 Difference]: With dead ends: 1922 [2019-09-10 02:41:55,981 INFO L226 Difference]: Without dead ends: 1922 [2019-09-10 02:41:55,982 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 112 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=115, Invalid=1075, Unknown=0, NotChecked=0, Total=1190 [2019-09-10 02:41:55,985 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1922 states. [2019-09-10 02:41:56,051 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1922 to 1921. [2019-09-10 02:41:56,051 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1921 states. [2019-09-10 02:41:56,064 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1921 states to 1921 states and 2597 transitions. [2019-09-10 02:41:56,064 INFO L78 Accepts]: Start accepts. Automaton has 1921 states and 2597 transitions. Word has length 192 [2019-09-10 02:41:56,065 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 02:41:56,065 INFO L475 AbstractCegarLoop]: Abstraction has 1921 states and 2597 transitions. [2019-09-10 02:41:56,065 INFO L476 AbstractCegarLoop]: Interpolant automaton has 19 states. [2019-09-10 02:41:56,065 INFO L276 IsEmpty]: Start isEmpty. Operand 1921 states and 2597 transitions. [2019-09-10 02:41:56,072 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 193 [2019-09-10 02:41:56,073 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 02:41:56,073 INFO L399 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-10 02:41:56,074 INFO L418 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 02:41:56,074 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 02:41:56,074 INFO L82 PathProgramCache]: Analyzing trace with hash 732896675, now seen corresponding path program 2 times [2019-09-10 02:41:56,074 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 02:41:56,075 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:41:56,076 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 02:41:56,076 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:41:56,076 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 02:41:56,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 02:41:56,301 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2019-09-10 02:41:56,301 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-10 02:41:56,301 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2019-09-10 02:41:56,302 INFO L189 CegarAbsIntRunner]: Skipping current iteration for AI because we have already analyzed this path program [2019-09-10 02:41:56,303 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: AbsInt can only provide a hoare triple checker if it generated fixpoints [2019-09-10 02:41:56,303 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-10 02:41:56,303 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) [2019-09-10 02:41:56,329 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST2 [2019-09-10 02:41:56,330 INFO L289 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder OUTSIDE_LOOP_FIRST2 (IT: FPandBP) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-09-10 02:41:56,796 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2019-09-10 02:41:56,796 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-09-10 02:41:56,805 INFO L256 TraceCheckSpWp]: Trace formula consists of 2228 conjuncts, 10 conjunts are in the unsatisfiable core [2019-09-10 02:41:56,834 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-09-10 02:41:57,038 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2019-09-10 02:41:57,038 INFO L322 TraceCheckSpWp]: Computing backward predicates... [2019-09-10 02:41:57,600 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2019-09-10 02:41:57,616 INFO L312 seRefinementStrategy]: Constructing automaton from 2 perfect and 1 imperfect interpolant sequences. [2019-09-10 02:41:57,617 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [8, 8] imperfect sequences [11] total 23 [2019-09-10 02:41:57,617 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 02:41:57,620 INFO L454 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-09-10 02:41:57,620 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-09-10 02:41:57,621 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=452, Unknown=0, NotChecked=0, Total=506 [2019-09-10 02:41:57,621 INFO L87 Difference]: Start difference. First operand 1921 states and 2597 transitions. Second operand 8 states. [2019-09-10 02:41:58,877 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 02:41:58,877 INFO L93 Difference]: Finished difference Result 3810 states and 5169 transitions. [2019-09-10 02:41:58,878 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2019-09-10 02:41:58,878 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 192 [2019-09-10 02:41:58,878 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 02:41:58,904 INFO L225 Difference]: With dead ends: 3810 [2019-09-10 02:41:58,905 INFO L226 Difference]: Without dead ends: 3810 [2019-09-10 02:41:58,905 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 402 GetRequests, 373 SyntacticMatches, 2 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=98, Invalid=714, Unknown=0, NotChecked=0, Total=812 [2019-09-10 02:41:58,911 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3810 states. [2019-09-10 02:41:59,132 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3810 to 3795. [2019-09-10 02:41:59,133 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3795 states. [2019-09-10 02:41:59,160 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3795 states to 3795 states and 5155 transitions. [2019-09-10 02:41:59,161 INFO L78 Accepts]: Start accepts. Automaton has 3795 states and 5155 transitions. Word has length 192 [2019-09-10 02:41:59,162 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 02:41:59,163 INFO L475 AbstractCegarLoop]: Abstraction has 3795 states and 5155 transitions. [2019-09-10 02:41:59,163 INFO L476 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-09-10 02:41:59,163 INFO L276 IsEmpty]: Start isEmpty. Operand 3795 states and 5155 transitions. [2019-09-10 02:41:59,179 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 194 [2019-09-10 02:41:59,180 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 02:41:59,180 INFO L399 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-10 02:41:59,180 INFO L418 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 02:41:59,181 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 02:41:59,182 INFO L82 PathProgramCache]: Analyzing trace with hash -1195279825, now seen corresponding path program 1 times [2019-09-10 02:41:59,182 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 02:41:59,184 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:41:59,184 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2019-09-10 02:41:59,184 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:41:59,185 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 02:41:59,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 02:41:59,539 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2019-09-10 02:41:59,539 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-10 02:41:59,540 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2019-09-10 02:41:59,540 INFO L205 CegarAbsIntRunner]: Running AI on error trace of length 194 with the following transitions: [2019-09-10 02:41:59,543 INFO L207 CegarAbsIntRunner]: [72], [75], [76], [79], [85], [86], [89], [98], [116], [119], [129], [130], [146], [149], [163], [164], [166], [276], [278], [282], [285], [286], [287], [290], [296], [333], [336], [345], [356], [358], [359], [362], [372], [630], [632], [633], [634], [672], [675], [689], [718], [719], [720], [723], [729], [730], [747], [749], [753], [756], [770], [774], [777], [795], [798], [863], [872], [876], [878], [880], [883], [890], [897], [900], [1038], [1040], [1057], [1135], [1137], [1140], [1142], [1145], [1205], [1277], [1281], [1292], [1295], [1296], [1299], [1302], [1333], [1334], [1336], [1338], [1345], [1351], [1353], [1466], [1469], [1471], [1474], [1483], [1489], [1492], [1501], [1555], [1558], [1567], [1695], [1697], [1699], [1701], [1702], [1738], [1748], [1749], [1750], [1751], [1752], [1753], [1756], [1757], [1758], [1759], [1760], [1762], [1763], [1764], [1765], [1782], [1783], [1826], [1827], [1842], [1848], [1849], [1850], [1851], [1852], [1853], [1854], [1855], [1856], [1857], [1858], [1859], [1860], [1861], [1862], [1864], [1865], [1866], [1867], [1918], [1920], [1921], [1938], [1940], [1941], [1942], [1943], [1944], [1946], [1947], [1948], [1950], [1951], [1952], [1953], [1954], [1955], [1956], [1957], [1962], [1964], [1965], [1966], [1986], [1987], [1988], [1989], [1990], [1991], [1992], [1993], [1994] [2019-09-10 02:41:59,607 INFO L148 AbstractInterpreter]: Using domain IntervalDomain [2019-09-10 02:41:59,607 INFO L101 FixpointEngine]: Starting fixpoint engine with domain IntervalDomain (maxUnwinding=3, maxParallelStates=2) [2019-09-10 02:41:59,746 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2019-09-10 02:41:59,748 INFO L272 AbstractInterpreter]: Visited 2 different actions 2 times. Never merged. Never widened. Performed 207 root evaluator evaluations with a maximum evaluation depth of 0. Performed 207 inverse root evaluator evaluations with a maximum inverse evaluation depth of 0. Never found a fixpoint. Largest state had 380 variables. [2019-09-10 02:41:59,753 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 02:41:59,754 INFO L403 sIntCurrentIteration]: Generating AbsInt predicates [2019-09-10 02:41:59,842 INFO L219 lantSequenceWeakener]: Could never weaken! [2019-09-10 02:41:59,842 INFO L418 sIntCurrentIteration]: Unifying AI predicates [2019-09-10 02:41:59,847 INFO L420 sIntCurrentIteration]: We unified 192 AI predicates to 192 [2019-09-10 02:41:59,847 INFO L429 sIntCurrentIteration]: Finished generation of AbsInt predicates [2019-09-10 02:41:59,848 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-09-10 02:41:59,848 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [11] total 11 [2019-09-10 02:41:59,848 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 02:41:59,849 INFO L454 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-09-10 02:41:59,849 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-09-10 02:41:59,849 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-09-10 02:41:59,849 INFO L87 Difference]: Start difference. First operand 3795 states and 5155 transitions. Second operand 2 states. [2019-09-10 02:41:59,850 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 02:41:59,850 INFO L93 Difference]: Finished difference Result 2 states and 1 transitions. [2019-09-10 02:41:59,850 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-09-10 02:41:59,850 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 193 [2019-09-10 02:41:59,851 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 02:41:59,851 INFO L225 Difference]: With dead ends: 2 [2019-09-10 02:41:59,851 INFO L226 Difference]: Without dead ends: 0 [2019-09-10 02:41:59,851 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 192 GetRequests, 192 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 02:41:59,851 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-09-10 02:41:59,852 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-09-10 02:41:59,852 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-09-10 02:41:59,852 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-09-10 02:41:59,852 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 193 [2019-09-10 02:41:59,852 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 02:41:59,852 INFO L475 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-09-10 02:41:59,852 INFO L476 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-09-10 02:41:59,853 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-09-10 02:41:59,853 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-09-10 02:41:59,858 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.09 02:41:59 BoogieIcfgContainer [2019-09-10 02:41:59,858 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-09-10 02:41:59,861 INFO L168 Benchmark]: Toolchain (without parser) took 19413.07 ms. Allocated memory was 135.3 MB in the beginning and 524.3 MB in the end (delta: 389.0 MB). Free memory was 88.6 MB in the beginning and 294.6 MB in the end (delta: -205.9 MB). Peak memory consumption was 183.1 MB. Max. memory is 7.1 GB. [2019-09-10 02:41:59,862 INFO L168 Benchmark]: CDTParser took 0.25 ms. Allocated memory is still 135.3 MB. Free memory was 109.8 MB in the beginning and 109.6 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. [2019-09-10 02:41:59,863 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1151.11 ms. Allocated memory was 135.3 MB in the beginning and 202.4 MB in the end (delta: 67.1 MB). Free memory was 88.4 MB in the beginning and 126.7 MB in the end (delta: -38.2 MB). Peak memory consumption was 34.1 MB. Max. memory is 7.1 GB. [2019-09-10 02:41:59,863 INFO L168 Benchmark]: Boogie Preprocessor took 250.22 ms. Allocated memory is still 202.4 MB. Free memory was 126.0 MB in the beginning and 117.0 MB in the end (delta: 9.0 MB). Peak memory consumption was 9.0 MB. Max. memory is 7.1 GB. [2019-09-10 02:41:59,864 INFO L168 Benchmark]: RCFGBuilder took 2403.73 ms. Allocated memory was 202.4 MB in the beginning and 256.9 MB in the end (delta: 54.5 MB). Free memory was 117.0 MB in the beginning and 134.0 MB in the end (delta: -17.0 MB). Peak memory consumption was 75.6 MB. Max. memory is 7.1 GB. [2019-09-10 02:41:59,865 INFO L168 Benchmark]: TraceAbstraction took 15601.88 ms. Allocated memory was 256.9 MB in the beginning and 524.3 MB in the end (delta: 267.4 MB). Free memory was 134.0 MB in the beginning and 294.6 MB in the end (delta: -160.5 MB). Peak memory consumption was 106.9 MB. Max. memory is 7.1 GB. [2019-09-10 02:41:59,869 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25 ms. Allocated memory is still 135.3 MB. Free memory was 109.8 MB in the beginning and 109.6 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 1151.11 ms. Allocated memory was 135.3 MB in the beginning and 202.4 MB in the end (delta: 67.1 MB). Free memory was 88.4 MB in the beginning and 126.7 MB in the end (delta: -38.2 MB). Peak memory consumption was 34.1 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 250.22 ms. Allocated memory is still 202.4 MB. Free memory was 126.0 MB in the beginning and 117.0 MB in the end (delta: 9.0 MB). Peak memory consumption was 9.0 MB. Max. memory is 7.1 GB. * RCFGBuilder took 2403.73 ms. Allocated memory was 202.4 MB in the beginning and 256.9 MB in the end (delta: 54.5 MB). Free memory was 117.0 MB in the beginning and 134.0 MB in the end (delta: -17.0 MB). Peak memory consumption was 75.6 MB. Max. memory is 7.1 GB. * TraceAbstraction took 15601.88 ms. Allocated memory was 256.9 MB in the beginning and 524.3 MB in the end (delta: 267.4 MB). Free memory was 134.0 MB in the beginning and 294.6 MB in the end (delta: -160.5 MB). Peak memory consumption was 106.9 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 43]: 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 118 procedures, 822 locations, 1 error locations. SAFE Result, 15.5s OverallTime, 9 OverallIterations, 3 TraceHistogramMax, 9.8s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 7163 SDtfs, 3399 SDslu, 41269 SDs, 0 SdLazy, 5700 SolverSat, 659 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 7.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 700 GetRequests, 588 SyntacticMatches, 2 SemanticMatches, 110 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 197 ImplicationChecksByTransitivity, 1.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=3795occurred in iteration=8, 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, 2.2239583333333335 AbsIntAvgWeakeningVarsNumRemoved, 0.0 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.7s AutomataMinimizationTime, 9 MinimizatonAttempts, 48 StatesRemovedByMinimization, 7 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.3s SsaConstructionTime, 0.9s SatisfiabilityAnalysisTime, 2.5s InterpolantComputationTime, 1850 NumberOfCodeBlocks, 1734 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 2031 ConstructedInterpolants, 0 QuantifiedInterpolants, 561458 SizeOfPredicates, 5 NumberOfNonLiveVariables, 2228 ConjunctsInSsa, 10 ConjunctsInUnsatCore, 11 InterpolantComputations, 9 PerfectInterpolantSequences, 364/370 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...