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_spec9_product15.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-673a906-m [2019-10-03 02:55:59,458 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-03 02:55:59,460 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-03 02:55:59,472 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-03 02:55:59,472 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-03 02:55:59,473 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-03 02:55:59,475 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-03 02:55:59,477 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-03 02:55:59,478 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-03 02:55:59,479 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-03 02:55:59,480 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-03 02:55:59,481 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-03 02:55:59,482 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-03 02:55:59,483 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-03 02:55:59,484 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-03 02:55:59,485 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-03 02:55:59,486 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-03 02:55:59,487 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-03 02:55:59,488 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-03 02:55:59,491 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-03 02:55:59,492 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-03 02:55:59,493 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-03 02:55:59,495 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-03 02:55:59,495 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-03 02:55:59,498 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-03 02:55:59,498 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-03 02:55:59,498 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-03 02:55:59,499 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-03 02:55:59,500 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-03 02:55:59,501 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-03 02:55:59,501 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-03 02:55:59,502 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-03 02:55:59,503 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-03 02:55:59,504 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-03 02:55:59,505 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-03 02:55:59,505 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-03 02:55:59,505 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-03 02:55:59,506 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-03 02:55:59,506 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-03 02:55:59,507 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-03 02:55:59,507 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-03 02:55:59,508 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 [2019-10-03 02:55:59,533 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-03 02:55:59,533 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-03 02:55:59,534 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2019-10-03 02:55:59,534 INFO L138 SettingsManager]: * Log level for plugins=info [2019-10-03 02:55:59,535 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-10-03 02:55:59,535 INFO L138 SettingsManager]: * User list type=DISABLED [2019-10-03 02:55:59,536 INFO L138 SettingsManager]: * Ignore calls to and inside polymorphic procedures=false [2019-10-03 02:55:59,537 INFO L138 SettingsManager]: * Ignore calls to recursive procedures=false [2019-10-03 02:55:59,537 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-10-03 02:55:59,537 INFO L138 SettingsManager]: * Abstract domain=IntervalDomain [2019-10-03 02:55:59,538 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-03 02:55:59,538 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-03 02:55:59,539 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-03 02:55:59,540 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-03 02:55:59,540 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-03 02:55:59,540 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-03 02:55:59,540 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-03 02:55:59,540 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-03 02:55:59,541 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-03 02:55:59,541 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-03 02:55:59,541 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-03 02:55:59,541 INFO L138 SettingsManager]: * Remove goto edges from RCFG=true [2019-10-03 02:55:59,542 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-03 02:55:59,542 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-03 02:55:59,542 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-03 02:55:59,542 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-03 02:55:59,543 INFO L138 SettingsManager]: * Trace refinement strategy=TAIPAN [2019-10-03 02:55:59,543 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-03 02:55:59,543 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-10-03 02:55:59,543 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2019-10-03 02:55:59,599 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-03 02:55:59,617 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-03 02:55:59,621 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-03 02:55:59,622 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-03 02:55:59,623 INFO L275 PluginConnector]: CDTParser initialized [2019-10-03 02:55:59,624 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/email_spec9_product15.cil.c [2019-10-03 02:55:59,695 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bc8e2fc9f/fe103c84e02e4f15a52371e991ef5c70/FLAGe2e0e50bc [2019-10-03 02:56:00,311 INFO L306 CDTParser]: Found 1 translation units. [2019-10-03 02:56:00,312 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/email_spec9_product15.cil.c [2019-10-03 02:56:00,350 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bc8e2fc9f/fe103c84e02e4f15a52371e991ef5c70/FLAGe2e0e50bc [2019-10-03 02:56:00,611 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bc8e2fc9f/fe103c84e02e4f15a52371e991ef5c70 [2019-10-03 02:56:00,623 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-03 02:56:00,624 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-03 02:56:00,625 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-03 02:56:00,626 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-03 02:56:00,630 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-03 02:56:00,631 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.10 02:56:00" (1/1) ... [2019-10-03 02:56:00,634 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@66cd572e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:56:00, skipping insertion in model container [2019-10-03 02:56:00,634 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.10 02:56:00" (1/1) ... [2019-10-03 02:56:00,642 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-03 02:56:00,726 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-03 02:56:01,407 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-03 02:56:01,430 INFO L188 MainTranslator]: Completed pre-run [2019-10-03 02:56:01,633 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-03 02:56:01,773 INFO L192 MainTranslator]: Completed translation [2019-10-03 02:56:01,774 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:56:01 WrapperNode [2019-10-03 02:56:01,775 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-03 02:56:01,776 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-03 02:56:01,776 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-03 02:56:01,776 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-03 02:56:01,793 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:56:01" (1/1) ... [2019-10-03 02:56:01,795 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:56:01" (1/1) ... [2019-10-03 02:56:01,852 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:56:01" (1/1) ... [2019-10-03 02:56:01,853 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:56:01" (1/1) ... [2019-10-03 02:56:01,903 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:56:01" (1/1) ... [2019-10-03 02:56:01,938 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:56:01" (1/1) ... [2019-10-03 02:56:01,959 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:56:01" (1/1) ... [2019-10-03 02:56:01,992 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-03 02:56:01,993 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-03 02:56:01,993 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-03 02:56:01,993 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-03 02:56:01,999 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:56:01" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-03 02:56:02,090 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-03 02:56:02,090 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-03 02:56:02,090 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-10-03 02:56:02,091 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-10-03 02:56:02,091 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-10-03 02:56:02,091 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-10-03 02:56:02,091 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-10-03 02:56:02,091 INFO L138 BoogieDeclarations]: Found implementation of procedure initEmail [2019-10-03 02:56:02,092 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailId [2019-10-03 02:56:02,092 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailId [2019-10-03 02:56:02,092 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2019-10-03 02:56:02,092 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2019-10-03 02:56:02,093 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2019-10-03 02:56:02,093 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2019-10-03 02:56:02,093 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSubject [2019-10-03 02:56:02,093 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSubject [2019-10-03 02:56:02,094 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailBody [2019-10-03 02:56:02,094 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailBody [2019-10-03 02:56:02,094 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2019-10-03 02:56:02,094 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2019-10-03 02:56:02,094 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2019-10-03 02:56:02,095 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2019-10-03 02:56:02,095 INFO L138 BoogieDeclarations]: Found implementation of procedure isSigned [2019-10-03 02:56:02,095 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSigned [2019-10-03 02:56:02,095 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSignKey [2019-10-03 02:56:02,095 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSignKey [2019-10-03 02:56:02,096 INFO L138 BoogieDeclarations]: Found implementation of procedure isVerified [2019-10-03 02:56:02,096 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSignatureVerified [2019-10-03 02:56:02,096 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-10-03 02:56:02,096 INFO L138 BoogieDeclarations]: Found implementation of procedure prompt [2019-10-03 02:56:02,096 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-10-03 02:56:02,097 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-10-03 02:56:02,097 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-10-03 02:56:02,097 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-10-03 02:56:02,097 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-10-03 02:56:02,097 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-10-03 02:56:02,097 INFO L138 BoogieDeclarations]: Found implementation of procedure initClient [2019-10-03 02:56:02,098 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientName [2019-10-03 02:56:02,098 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientName [2019-10-03 02:56:02,098 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientOutbuffer [2019-10-03 02:56:02,098 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientOutbuffer [2019-10-03 02:56:02,098 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookSize [2019-10-03 02:56:02,099 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookSize [2019-10-03 02:56:02,099 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientAddressBookEntry [2019-10-03 02:56:02,099 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAlias [2019-10-03 02:56:02,099 INFO L138 BoogieDeclarations]: Found implementation of procedure findClientAddressBookAlias [2019-10-03 02:56:02,099 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAlias [2019-10-03 02:56:02,099 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAddress [2019-10-03 02:56:02,100 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAddress [2019-10-03 02:56:02,100 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAutoResponse [2019-10-03 02:56:02,100 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAutoResponse [2019-10-03 02:56:02,100 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientPrivateKey [2019-10-03 02:56:02,100 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2019-10-03 02:56:02,100 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringSize [2019-10-03 02:56:02,101 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringSize [2019-10-03 02:56:02,101 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2019-10-03 02:56:02,101 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringUser [2019-10-03 02:56:02,101 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2019-10-03 02:56:02,101 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringPublicKey [2019-10-03 02:56:02,102 INFO L138 BoogieDeclarations]: Found implementation of procedure findPublicKey [2019-10-03 02:56:02,102 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2019-10-03 02:56:02,102 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientForwardReceiver [2019-10-03 02:56:02,102 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientForwardReceiver [2019-10-03 02:56:02,102 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientId [2019-10-03 02:56:02,103 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2019-10-03 02:56:02,103 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-10-03 02:56:02,103 INFO L138 BoogieDeclarations]: Found implementation of procedure mail [2019-10-03 02:56:02,103 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__Keys [2019-10-03 02:56:02,103 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2019-10-03 02:56:02,103 INFO L138 BoogieDeclarations]: Found implementation of procedure deliver [2019-10-03 02:56:02,104 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Encrypt [2019-10-03 02:56:02,104 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__AutoResponder [2019-10-03 02:56:02,104 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming [2019-10-03 02:56:02,104 INFO L138 BoogieDeclarations]: Found implementation of procedure createClient [2019-10-03 02:56:02,104 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2019-10-03 02:56:02,104 INFO L138 BoogieDeclarations]: Found implementation of procedure queue [2019-10-03 02:56:02,105 INFO L138 BoogieDeclarations]: Found implementation of procedure is_queue_empty [2019-10-03 02:56:02,105 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_client [2019-10-03 02:56:02,105 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_email [2019-10-03 02:56:02,105 INFO L138 BoogieDeclarations]: Found implementation of procedure isKeyPairValid [2019-10-03 02:56:02,105 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2019-10-03 02:56:02,105 INFO L138 BoogieDeclarations]: Found implementation of procedure autoRespond [2019-10-03 02:56:02,106 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__EncryptForward_spec__1 [2019-10-03 02:56:02,106 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__EncryptForward_spec__2 [2019-10-03 02:56:02,106 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob__wrappee__Base [2019-10-03 02:56:02,106 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob [2019-10-03 02:56:02,106 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh__wrappee__Base [2019-10-03 02:56:02,106 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh [2019-10-03 02:56:02,106 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck__wrappee__Base [2019-10-03 02:56:02,107 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck [2019-10-03 02:56:02,107 INFO L138 BoogieDeclarations]: Found implementation of procedure bobToRjh [2019-10-03 02:56:02,107 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhToBob [2019-10-03 02:56:02,107 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-10-03 02:56:02,107 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-03 02:56:02,107 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAdd [2019-10-03 02:56:02,108 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAdd [2019-10-03 02:56:02,108 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAddChuck [2019-10-03 02:56:02,108 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAddChuck [2019-10-03 02:56:02,108 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2019-10-03 02:56:02,108 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAddRjh [2019-10-03 02:56:02,108 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhDeletePrivateKey [2019-10-03 02:56:02,108 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyChange [2019-10-03 02:56:02,109 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyChange [2019-10-03 02:56:02,109 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhSetAutoRespond [2019-10-03 02:56:02,109 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__Keys [2019-10-03 02:56:02,109 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail [2019-10-03 02:56:02,109 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable__wrappee__Keys [2019-10-03 02:56:02,109 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2019-10-03 02:56:02,109 INFO L138 BoogieDeclarations]: Found implementation of procedure cloneEmail [2019-10-03 02:56:02,110 INFO L138 BoogieDeclarations]: Found implementation of procedure createEmail [2019-10-03 02:56:02,110 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-03 02:56:02,110 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-03 02:56:02,110 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-10-03 02:56:02,110 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-10-03 02:56:02,110 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-10-03 02:56:02,111 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-10-03 02:56:02,111 INFO L130 BoogieDeclarations]: Found specification of procedure initEmail [2019-10-03 02:56:02,111 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailId [2019-10-03 02:56:02,111 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailId [2019-10-03 02:56:02,111 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2019-10-03 02:56:02,111 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2019-10-03 02:56:02,111 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2019-10-03 02:56:02,112 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2019-10-03 02:56:02,112 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSubject [2019-10-03 02:56:02,112 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSubject [2019-10-03 02:56:02,112 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailBody [2019-10-03 02:56:02,112 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailBody [2019-10-03 02:56:02,112 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2019-10-03 02:56:02,113 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2019-10-03 02:56:02,113 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2019-10-03 02:56:02,113 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2019-10-03 02:56:02,113 INFO L130 BoogieDeclarations]: Found specification of procedure isSigned [2019-10-03 02:56:02,113 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSigned [2019-10-03 02:56:02,113 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSignKey [2019-10-03 02:56:02,114 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSignKey [2019-10-03 02:56:02,114 INFO L130 BoogieDeclarations]: Found specification of procedure isVerified [2019-10-03 02:56:02,114 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSignatureVerified [2019-10-03 02:56:02,114 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAdd [2019-10-03 02:56:02,114 INFO L130 BoogieDeclarations]: Found specification of procedure rjhSetAutoRespond [2019-10-03 02:56:02,114 INFO L130 BoogieDeclarations]: Found specification of procedure rjhDeletePrivateKey [2019-10-03 02:56:02,114 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAdd [2019-10-03 02:56:02,115 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAddRjh [2019-10-03 02:56:02,115 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyChange [2019-10-03 02:56:02,115 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2019-10-03 02:56:02,115 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyChange [2019-10-03 02:56:02,115 INFO L130 BoogieDeclarations]: Found specification of procedure bobToRjh [2019-10-03 02:56:02,115 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-10-03 02:56:02,116 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-10-03 02:56:02,116 INFO L130 BoogieDeclarations]: Found specification of procedure prompt [2019-10-03 02:56:02,116 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-03 02:56:02,116 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-10-03 02:56:02,116 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-10-03 02:56:02,116 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-03 02:56:02,116 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-10-03 02:56:02,117 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-03 02:56:02,117 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-03 02:56:02,117 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-03 02:56:02,117 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-03 02:56:02,117 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-10-03 02:56:02,117 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-03 02:56:02,117 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-10-03 02:56:02,118 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-10-03 02:56:02,118 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-03 02:56:02,118 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-10-03 02:56:02,118 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-10-03 02:56:02,118 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-10-03 02:56:02,118 INFO L130 BoogieDeclarations]: Found specification of procedure initClient [2019-10-03 02:56:02,118 INFO L130 BoogieDeclarations]: Found specification of procedure getClientName [2019-10-03 02:56:02,118 INFO L130 BoogieDeclarations]: Found specification of procedure setClientName [2019-10-03 02:56:02,119 INFO L130 BoogieDeclarations]: Found specification of procedure getClientOutbuffer [2019-10-03 02:56:02,119 INFO L130 BoogieDeclarations]: Found specification of procedure setClientOutbuffer [2019-10-03 02:56:02,119 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookSize [2019-10-03 02:56:02,119 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookSize [2019-10-03 02:56:02,119 INFO L130 BoogieDeclarations]: Found specification of procedure createClientAddressBookEntry [2019-10-03 02:56:02,119 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAlias [2019-10-03 02:56:02,119 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAlias [2019-10-03 02:56:02,120 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAddress [2019-10-03 02:56:02,120 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAddress [2019-10-03 02:56:02,120 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAutoResponse [2019-10-03 02:56:02,120 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAutoResponse [2019-10-03 02:56:02,120 INFO L130 BoogieDeclarations]: Found specification of procedure getClientPrivateKey [2019-10-03 02:56:02,120 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2019-10-03 02:56:02,120 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringSize [2019-10-03 02:56:02,121 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2019-10-03 02:56:02,121 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringUser [2019-10-03 02:56:02,121 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2019-10-03 02:56:02,121 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringPublicKey [2019-10-03 02:56:02,121 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2019-10-03 02:56:02,121 INFO L130 BoogieDeclarations]: Found specification of procedure getClientForwardReceiver [2019-10-03 02:56:02,121 INFO L130 BoogieDeclarations]: Found specification of procedure setClientForwardReceiver [2019-10-03 02:56:02,121 INFO L130 BoogieDeclarations]: Found specification of procedure getClientId [2019-10-03 02:56:02,122 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2019-10-03 02:56:02,122 INFO L130 BoogieDeclarations]: Found specification of procedure findPublicKey [2019-10-03 02:56:02,122 INFO L130 BoogieDeclarations]: Found specification of procedure findClientAddressBookAlias [2019-10-03 02:56:02,122 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringSize [2019-10-03 02:56:02,122 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-10-03 02:56:02,122 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2019-10-03 02:56:02,122 INFO L130 BoogieDeclarations]: Found specification of procedure createEmail [2019-10-03 02:56:02,123 INFO L130 BoogieDeclarations]: Found specification of procedure queue [2019-10-03 02:56:02,123 INFO L130 BoogieDeclarations]: Found specification of procedure is_queue_empty [2019-10-03 02:56:02,123 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_client [2019-10-03 02:56:02,123 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_email [2019-10-03 02:56:02,123 INFO L130 BoogieDeclarations]: Found specification of procedure mail [2019-10-03 02:56:02,123 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2019-10-03 02:56:02,123 INFO L130 BoogieDeclarations]: Found specification of procedure deliver [2019-10-03 02:56:02,124 INFO L130 BoogieDeclarations]: Found specification of procedure incoming [2019-10-03 02:56:02,124 INFO L130 BoogieDeclarations]: Found specification of procedure createClient [2019-10-03 02:56:02,124 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2019-10-03 02:56:02,124 INFO L130 BoogieDeclarations]: Found specification of procedure isKeyPairValid [2019-10-03 02:56:02,124 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2019-10-03 02:56:02,124 INFO L130 BoogieDeclarations]: Found specification of procedure autoRespond [2019-10-03 02:56:02,124 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__EncryptForward_spec__2 [2019-10-03 02:56:02,125 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__Keys [2019-10-03 02:56:02,125 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Encrypt [2019-10-03 02:56:02,125 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__AutoResponder [2019-10-03 02:56:02,125 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__EncryptForward_spec__1 [2019-10-03 02:56:02,125 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob [2019-10-03 02:56:02,125 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh [2019-10-03 02:56:02,125 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck [2019-10-03 02:56:02,125 INFO L130 BoogieDeclarations]: Found specification of procedure rjhToBob [2019-10-03 02:56:02,126 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-10-03 02:56:02,126 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-03 02:56:02,126 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAddChuck [2019-10-03 02:56:02,126 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAddChuck [2019-10-03 02:56:02,126 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob__wrappee__Base [2019-10-03 02:56:02,126 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh__wrappee__Base [2019-10-03 02:56:02,126 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck__wrappee__Base [2019-10-03 02:56:02,127 INFO L130 BoogieDeclarations]: Found specification of procedure printMail [2019-10-03 02:56:02,127 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2019-10-03 02:56:02,127 INFO L130 BoogieDeclarations]: Found specification of procedure cloneEmail [2019-10-03 02:56:02,127 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__Keys [2019-10-03 02:56:02,127 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable__wrappee__Keys [2019-10-03 02:56:02,127 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-03 02:56:02,127 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-03 02:56:02,127 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-03 02:56:04,284 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-03 02:56:04,284 INFO L283 CfgBuilder]: Removed 4 assume(true) statements. [2019-10-03 02:56:04,286 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.10 02:56:04 BoogieIcfgContainer [2019-10-03 02:56:04,287 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-03 02:56:04,288 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-03 02:56:04,288 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-03 02:56:04,292 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-03 02:56:04,292 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.10 02:56:00" (1/3) ... [2019-10-03 02:56:04,293 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3b39467b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.10 02:56:04, skipping insertion in model container [2019-10-03 02:56:04,293 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:56:01" (2/3) ... [2019-10-03 02:56:04,294 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3b39467b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.10 02:56:04, skipping insertion in model container [2019-10-03 02:56:04,295 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.10 02:56:04" (3/3) ... [2019-10-03 02:56:04,299 INFO L109 eAbstractionObserver]: Analyzing ICFG email_spec9_product15.cil.c [2019-10-03 02:56:04,310 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-03 02:56:04,324 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-03 02:56:04,342 INFO L252 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-03 02:56:04,379 INFO L377 AbstractCegarLoop]: Interprodecural is true [2019-10-03 02:56:04,379 INFO L378 AbstractCegarLoop]: Hoare is false [2019-10-03 02:56:04,379 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-03 02:56:04,379 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-03 02:56:04,379 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-03 02:56:04,379 INFO L382 AbstractCegarLoop]: Difference is false [2019-10-03 02:56:04,380 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-03 02:56:04,380 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-03 02:56:04,417 INFO L276 IsEmpty]: Start isEmpty. Operand 470 states. [2019-10-03 02:56:04,456 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2019-10-03 02:56:04,456 INFO L403 BasicCegarLoop]: Found error trace [2019-10-03 02:56:04,458 INFO L411 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-03 02:56:04,461 INFO L418 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-03 02:56:04,468 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-03 02:56:04,468 INFO L82 PathProgramCache]: Analyzing trace with hash -334786029, now seen corresponding path program 1 times [2019-10-03 02:56:04,471 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-10-03 02:56:04,543 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:56:04,544 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-03 02:56:04,545 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:56:04,545 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-10-03 02:56:04,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-03 02:56:05,137 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2019-10-03 02:56:05,140 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-03 02:56:05,140 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-10-03 02:56:05,140 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-10-03 02:56:05,146 INFO L454 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-03 02:56:05,161 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-03 02:56:05,162 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-03 02:56:05,164 INFO L87 Difference]: Start difference. First operand 470 states. Second operand 2 states. [2019-10-03 02:56:05,214 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-03 02:56:05,214 INFO L93 Difference]: Finished difference Result 432 states and 575 transitions. [2019-10-03 02:56:05,215 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-03 02:56:05,216 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 145 [2019-10-03 02:56:05,217 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-03 02:56:05,238 INFO L225 Difference]: With dead ends: 432 [2019-10-03 02:56:05,238 INFO L226 Difference]: Without dead ends: 423 [2019-10-03 02:56:05,240 INFO L640 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 [2019-10-03 02:56:05,261 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 423 states. [2019-10-03 02:56:05,316 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 423 to 423. [2019-10-03 02:56:05,318 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 423 states. [2019-10-03 02:56:05,324 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 423 states to 423 states and 564 transitions. [2019-10-03 02:56:05,326 INFO L78 Accepts]: Start accepts. Automaton has 423 states and 564 transitions. Word has length 145 [2019-10-03 02:56:05,328 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-03 02:56:05,328 INFO L475 AbstractCegarLoop]: Abstraction has 423 states and 564 transitions. [2019-10-03 02:56:05,328 INFO L476 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-03 02:56:05,328 INFO L276 IsEmpty]: Start isEmpty. Operand 423 states and 564 transitions. [2019-10-03 02:56:05,333 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2019-10-03 02:56:05,334 INFO L403 BasicCegarLoop]: Found error trace [2019-10-03 02:56:05,334 INFO L411 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-03 02:56:05,334 INFO L418 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-03 02:56:05,335 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-03 02:56:05,335 INFO L82 PathProgramCache]: Analyzing trace with hash 307688883, now seen corresponding path program 1 times [2019-10-03 02:56:05,335 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-10-03 02:56:05,340 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:56:05,341 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-03 02:56:05,341 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:56:05,341 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-10-03 02:56:05,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-03 02:56:05,623 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2019-10-03 02:56:05,624 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-03 02:56:05,624 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-03 02:56:05,624 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-10-03 02:56:05,630 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-03 02:56:05,630 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-03 02:56:05,631 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-03 02:56:05,631 INFO L87 Difference]: Start difference. First operand 423 states and 564 transitions. Second operand 3 states. [2019-10-03 02:56:05,700 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-03 02:56:05,700 INFO L93 Difference]: Finished difference Result 426 states and 567 transitions. [2019-10-03 02:56:05,701 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-03 02:56:05,701 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 146 [2019-10-03 02:56:05,702 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-03 02:56:05,706 INFO L225 Difference]: With dead ends: 426 [2019-10-03 02:56:05,707 INFO L226 Difference]: Without dead ends: 426 [2019-10-03 02:56:05,708 INFO L640 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 [2019-10-03 02:56:05,709 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 426 states. [2019-10-03 02:56:05,749 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 426 to 425. [2019-10-03 02:56:05,749 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 425 states. [2019-10-03 02:56:05,753 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 425 states to 425 states and 566 transitions. [2019-10-03 02:56:05,754 INFO L78 Accepts]: Start accepts. Automaton has 425 states and 566 transitions. Word has length 146 [2019-10-03 02:56:05,755 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-03 02:56:05,755 INFO L475 AbstractCegarLoop]: Abstraction has 425 states and 566 transitions. [2019-10-03 02:56:05,755 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-03 02:56:05,755 INFO L276 IsEmpty]: Start isEmpty. Operand 425 states and 566 transitions. [2019-10-03 02:56:05,758 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2019-10-03 02:56:05,758 INFO L403 BasicCegarLoop]: Found error trace [2019-10-03 02:56:05,758 INFO L411 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-03 02:56:05,759 INFO L418 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-03 02:56:05,759 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-03 02:56:05,759 INFO L82 PathProgramCache]: Analyzing trace with hash -179459229, now seen corresponding path program 1 times [2019-10-03 02:56:05,759 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-10-03 02:56:05,764 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:56:05,765 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-03 02:56:05,765 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:56:05,765 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-10-03 02:56:05,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-03 02:56:05,987 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2019-10-03 02:56:05,987 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-03 02:56:05,988 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-03 02:56:05,988 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-10-03 02:56:05,988 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-03 02:56:05,989 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-03 02:56:05,989 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-03 02:56:05,989 INFO L87 Difference]: Start difference. First operand 425 states and 566 transitions. Second operand 3 states. [2019-10-03 02:56:06,013 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-03 02:56:06,013 INFO L93 Difference]: Finished difference Result 466 states and 636 transitions. [2019-10-03 02:56:06,014 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-03 02:56:06,014 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 156 [2019-10-03 02:56:06,015 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-03 02:56:06,019 INFO L225 Difference]: With dead ends: 466 [2019-10-03 02:56:06,019 INFO L226 Difference]: Without dead ends: 466 [2019-10-03 02:56:06,019 INFO L640 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 [2019-10-03 02:56:06,020 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 466 states. [2019-10-03 02:56:06,039 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 466 to 465. [2019-10-03 02:56:06,040 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 465 states. [2019-10-03 02:56:06,044 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 465 states to 465 states and 635 transitions. [2019-10-03 02:56:06,044 INFO L78 Accepts]: Start accepts. Automaton has 465 states and 635 transitions. Word has length 156 [2019-10-03 02:56:06,045 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-03 02:56:06,045 INFO L475 AbstractCegarLoop]: Abstraction has 465 states and 635 transitions. [2019-10-03 02:56:06,045 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-03 02:56:06,045 INFO L276 IsEmpty]: Start isEmpty. Operand 465 states and 635 transitions. [2019-10-03 02:56:06,052 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2019-10-03 02:56:06,052 INFO L403 BasicCegarLoop]: Found error trace [2019-10-03 02:56:06,052 INFO L411 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-03 02:56:06,053 INFO L418 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-03 02:56:06,053 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-03 02:56:06,053 INFO L82 PathProgramCache]: Analyzing trace with hash 1835832225, now seen corresponding path program 1 times [2019-10-03 02:56:06,054 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-10-03 02:56:06,060 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:56:06,060 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-03 02:56:06,061 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:56:06,061 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-10-03 02:56:06,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-03 02:56:06,341 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2019-10-03 02:56:06,342 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-03 02:56:06,342 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-03 02:56:06,342 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-10-03 02:56:06,344 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-03 02:56:06,345 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-03 02:56:06,345 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-03 02:56:06,345 INFO L87 Difference]: Start difference. First operand 465 states and 635 transitions. Second operand 3 states. [2019-10-03 02:56:06,384 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-03 02:56:06,384 INFO L93 Difference]: Finished difference Result 543 states and 768 transitions. [2019-10-03 02:56:06,386 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-03 02:56:06,387 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 157 [2019-10-03 02:56:06,387 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-03 02:56:06,396 INFO L225 Difference]: With dead ends: 543 [2019-10-03 02:56:06,397 INFO L226 Difference]: Without dead ends: 543 [2019-10-03 02:56:06,397 INFO L640 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 [2019-10-03 02:56:06,401 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 543 states. [2019-10-03 02:56:06,440 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 543 to 542. [2019-10-03 02:56:06,440 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 542 states. [2019-10-03 02:56:06,446 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 542 states to 542 states and 767 transitions. [2019-10-03 02:56:06,446 INFO L78 Accepts]: Start accepts. Automaton has 542 states and 767 transitions. Word has length 157 [2019-10-03 02:56:06,448 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-03 02:56:06,449 INFO L475 AbstractCegarLoop]: Abstraction has 542 states and 767 transitions. [2019-10-03 02:56:06,449 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-03 02:56:06,449 INFO L276 IsEmpty]: Start isEmpty. Operand 542 states and 767 transitions. [2019-10-03 02:56:06,459 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2019-10-03 02:56:06,459 INFO L403 BasicCegarLoop]: Found error trace [2019-10-03 02:56:06,459 INFO L411 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-03 02:56:06,460 INFO L418 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-03 02:56:06,460 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-03 02:56:06,460 INFO L82 PathProgramCache]: Analyzing trace with hash -1507225213, now seen corresponding path program 1 times [2019-10-03 02:56:06,461 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-10-03 02:56:06,466 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:56:06,466 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-03 02:56:06,466 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:56:06,467 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-10-03 02:56:06,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-03 02:56:06,648 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2019-10-03 02:56:06,648 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-03 02:56:06,649 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-03 02:56:06,649 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-10-03 02:56:06,649 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-03 02:56:06,649 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-03 02:56:06,650 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-03 02:56:06,650 INFO L87 Difference]: Start difference. First operand 542 states and 767 transitions. Second operand 3 states. [2019-10-03 02:56:06,679 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-03 02:56:06,679 INFO L93 Difference]: Finished difference Result 691 states and 1020 transitions. [2019-10-03 02:56:06,680 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-03 02:56:06,680 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 158 [2019-10-03 02:56:06,681 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-03 02:56:06,686 INFO L225 Difference]: With dead ends: 691 [2019-10-03 02:56:06,686 INFO L226 Difference]: Without dead ends: 691 [2019-10-03 02:56:06,687 INFO L640 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 [2019-10-03 02:56:06,689 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 691 states. [2019-10-03 02:56:06,717 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 691 to 690. [2019-10-03 02:56:06,718 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 690 states. [2019-10-03 02:56:06,723 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 690 states to 690 states and 1019 transitions. [2019-10-03 02:56:06,723 INFO L78 Accepts]: Start accepts. Automaton has 690 states and 1019 transitions. Word has length 158 [2019-10-03 02:56:06,724 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-03 02:56:06,724 INFO L475 AbstractCegarLoop]: Abstraction has 690 states and 1019 transitions. [2019-10-03 02:56:06,724 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-03 02:56:06,725 INFO L276 IsEmpty]: Start isEmpty. Operand 690 states and 1019 transitions. [2019-10-03 02:56:06,729 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2019-10-03 02:56:06,729 INFO L403 BasicCegarLoop]: Found error trace [2019-10-03 02:56:06,730 INFO L411 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-03 02:56:06,730 INFO L418 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-03 02:56:06,730 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-03 02:56:06,730 INFO L82 PathProgramCache]: Analyzing trace with hash 663233921, now seen corresponding path program 1 times [2019-10-03 02:56:06,731 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-10-03 02:56:06,737 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:56:06,737 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-03 02:56:06,737 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:56:06,737 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-10-03 02:56:06,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-03 02:56:06,864 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2019-10-03 02:56:06,865 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-03 02:56:06,865 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-03 02:56:06,865 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-10-03 02:56:06,865 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-03 02:56:06,866 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-03 02:56:06,866 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-03 02:56:06,866 INFO L87 Difference]: Start difference. First operand 690 states and 1019 transitions. Second operand 3 states. [2019-10-03 02:56:06,891 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-03 02:56:06,891 INFO L93 Difference]: Finished difference Result 975 states and 1500 transitions. [2019-10-03 02:56:06,892 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-03 02:56:06,892 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 159 [2019-10-03 02:56:06,892 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-03 02:56:06,899 INFO L225 Difference]: With dead ends: 975 [2019-10-03 02:56:06,899 INFO L226 Difference]: Without dead ends: 975 [2019-10-03 02:56:06,900 INFO L640 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 [2019-10-03 02:56:06,902 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 975 states. [2019-10-03 02:56:06,940 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 975 to 974. [2019-10-03 02:56:06,940 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 974 states. [2019-10-03 02:56:06,949 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 974 states to 974 states and 1499 transitions. [2019-10-03 02:56:06,949 INFO L78 Accepts]: Start accepts. Automaton has 974 states and 1499 transitions. Word has length 159 [2019-10-03 02:56:06,953 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-03 02:56:06,953 INFO L475 AbstractCegarLoop]: Abstraction has 974 states and 1499 transitions. [2019-10-03 02:56:06,954 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-03 02:56:06,954 INFO L276 IsEmpty]: Start isEmpty. Operand 974 states and 1499 transitions. [2019-10-03 02:56:06,963 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2019-10-03 02:56:06,963 INFO L403 BasicCegarLoop]: Found error trace [2019-10-03 02:56:06,963 INFO L411 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-03 02:56:06,964 INFO L418 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-03 02:56:06,964 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-03 02:56:06,964 INFO L82 PathProgramCache]: Analyzing trace with hash 1809778595, now seen corresponding path program 1 times [2019-10-03 02:56:06,965 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-10-03 02:56:06,970 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:56:06,971 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-03 02:56:06,971 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:56:06,975 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-10-03 02:56:07,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-03 02:56:07,219 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2019-10-03 02:56:07,220 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-03 02:56:07,220 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-03 02:56:07,220 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-10-03 02:56:07,221 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-03 02:56:07,221 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-03 02:56:07,222 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-03 02:56:07,222 INFO L87 Difference]: Start difference. First operand 974 states and 1499 transitions. Second operand 3 states. [2019-10-03 02:56:07,253 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-03 02:56:07,253 INFO L93 Difference]: Finished difference Result 1519 states and 2412 transitions. [2019-10-03 02:56:07,254 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-03 02:56:07,254 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 160 [2019-10-03 02:56:07,256 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-03 02:56:07,265 INFO L225 Difference]: With dead ends: 1519 [2019-10-03 02:56:07,266 INFO L226 Difference]: Without dead ends: 1519 [2019-10-03 02:56:07,266 INFO L640 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 [2019-10-03 02:56:07,268 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1519 states. [2019-10-03 02:56:07,316 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1519 to 1518. [2019-10-03 02:56:07,316 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1518 states. [2019-10-03 02:56:07,326 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1518 states to 1518 states and 2411 transitions. [2019-10-03 02:56:07,326 INFO L78 Accepts]: Start accepts. Automaton has 1518 states and 2411 transitions. Word has length 160 [2019-10-03 02:56:07,327 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-03 02:56:07,327 INFO L475 AbstractCegarLoop]: Abstraction has 1518 states and 2411 transitions. [2019-10-03 02:56:07,327 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-03 02:56:07,327 INFO L276 IsEmpty]: Start isEmpty. Operand 1518 states and 2411 transitions. [2019-10-03 02:56:07,334 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2019-10-03 02:56:07,334 INFO L403 BasicCegarLoop]: Found error trace [2019-10-03 02:56:07,334 INFO L411 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-03 02:56:07,335 INFO L418 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-03 02:56:07,335 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-03 02:56:07,335 INFO L82 PathProgramCache]: Analyzing trace with hash 2049207905, now seen corresponding path program 1 times [2019-10-03 02:56:07,335 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-10-03 02:56:07,339 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:56:07,340 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-03 02:56:07,340 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:56:07,340 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-10-03 02:56:07,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-03 02:56:07,523 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2019-10-03 02:56:07,523 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-03 02:56:07,523 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-03 02:56:07,523 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-10-03 02:56:07,524 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-03 02:56:07,525 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-03 02:56:07,525 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-03 02:56:07,525 INFO L87 Difference]: Start difference. First operand 1518 states and 2411 transitions. Second operand 3 states. [2019-10-03 02:56:07,558 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-03 02:56:07,558 INFO L93 Difference]: Finished difference Result 1595 states and 2518 transitions. [2019-10-03 02:56:07,559 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-03 02:56:07,559 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 162 [2019-10-03 02:56:07,559 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-03 02:56:07,569 INFO L225 Difference]: With dead ends: 1595 [2019-10-03 02:56:07,569 INFO L226 Difference]: Without dead ends: 1584 [2019-10-03 02:56:07,570 INFO L640 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-03 02:56:07,572 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1584 states. [2019-10-03 02:56:07,621 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1584 to 1584. [2019-10-03 02:56:07,622 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1584 states. [2019-10-03 02:56:07,639 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1584 states to 1584 states and 2499 transitions. [2019-10-03 02:56:07,639 INFO L78 Accepts]: Start accepts. Automaton has 1584 states and 2499 transitions. Word has length 162 [2019-10-03 02:56:07,640 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-03 02:56:07,640 INFO L475 AbstractCegarLoop]: Abstraction has 1584 states and 2499 transitions. [2019-10-03 02:56:07,640 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-03 02:56:07,640 INFO L276 IsEmpty]: Start isEmpty. Operand 1584 states and 2499 transitions. [2019-10-03 02:56:07,654 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 270 [2019-10-03 02:56:07,655 INFO L403 BasicCegarLoop]: Found error trace [2019-10-03 02:56:07,655 INFO L411 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-03 02:56:07,655 INFO L418 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-03 02:56:07,656 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-03 02:56:07,656 INFO L82 PathProgramCache]: Analyzing trace with hash 613431326, now seen corresponding path program 1 times [2019-10-03 02:56:07,656 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-10-03 02:56:07,660 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:56:07,661 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-03 02:56:07,661 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:56:07,661 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-10-03 02:56:07,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-03 02:56:08,314 INFO L134 CoverageAnalysis]: Checked inductivity of 79 backedges. 16 proven. 8 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2019-10-03 02:56:08,315 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-10-03 02:56:08,315 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2019-10-03 02:56:08,316 INFO L205 CegarAbsIntRunner]: Running AI on error trace of length 270 with the following transitions: [2019-10-03 02:56:08,334 INFO L207 CegarAbsIntRunner]: [29], [30], [72], [75], [85], [110], [113], [118], [120], [122], [139], [142], [143], [144], [146], [256], [258], [261], [262], [265], [266], [267], [270], [276], [277], [278], [300], [302], [303], [306], [315], [336], [338], [339], [342], [352], [353], [354], [382], [567], [569], [570], [571], [572], [574], [575], [581], [584], [586], [591], [595], [597], [628], [631], [645], [674], [675], [686], [688], [690], [692], [726], [730], [733], [741], [744], [775], [778], [803], [806], [809], [818], [822], [824], [826], [829], [836], [843], [846], [848], [982], [985], [999], [1107], [1179], [1181], [1183], [1190], [1193], [1194], [1205], [1208], [1214], [1216], [1217], [1220], [1221], [1224], [1227], [1258], [1259], [1261], [1263], [1330], [1333], [1339], [1340], [1343], [1353], [1374], [1377], [1391], [1399], [1402], [1411], [1425], [1426], [1600], [1602], [1604], [1606], [1607], [1629], [1630], [1631], [1632], [1633], [1634], [1635], [1636], [1637], [1639], [1640], [1641], [1642], [1643], [1644], [1647], [1648], [1649], [1650], [1651], [1652], [1653], [1654], [1655], [1656], [1663], [1664], [1673], [1674], [1679], [1680], [1697], [1698], [1699], [1700], [1707], [1708], [1709], [1717], [1718], [1719], [1720], [1721], [1722], [1723], [1724], [1725], [1726], [1727], [1728], [1729], [1730], [1731], [1733], [1734], [1735], [1736], [1751], [1752], [1753], [1754], [1765], [1766], [1771], [1772], [1787], [1789], [1790], [1791], [1792], [1797], [1798], [1799], [1800], [1801], [1802], [1805], [1806], [1807], [1808], [1809], [1810], [1811], [1812], [1825], [1826], [1827], [1828], [1829], [1830], [1831], [1832], [1833] [2019-10-03 02:56:08,403 INFO L148 AbstractInterpreter]: Using domain IntervalDomain [2019-10-03 02:56:08,403 INFO L101 FixpointEngine]: Starting fixpoint engine with domain IntervalDomain (maxUnwinding=3, maxParallelStates=2) [2019-10-03 02:56:08,533 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2019-10-03 02:56:08,535 INFO L272 AbstractInterpreter]: Visited 2 different actions 2 times. Never merged. Never widened. Performed 226 root evaluator evaluations with a maximum evaluation depth of 0. Performed 226 inverse root evaluator evaluations with a maximum inverse evaluation depth of 0. Never found a fixpoint. Largest state had 374 variables. [2019-10-03 02:56:08,539 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-03 02:56:08,539 INFO L403 sIntCurrentIteration]: Generating AbsInt predicates [2019-10-03 02:56:08,630 INFO L219 lantSequenceWeakener]: Could never weaken! [2019-10-03 02:56:08,630 INFO L418 sIntCurrentIteration]: Unifying AI predicates [2019-10-03 02:56:08,644 INFO L420 sIntCurrentIteration]: We unified 268 AI predicates to 268 [2019-10-03 02:56:08,644 INFO L429 sIntCurrentIteration]: Finished generation of AbsInt predicates [2019-10-03 02:56:08,645 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-10-03 02:56:08,646 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [22] total 22 [2019-10-03 02:56:08,646 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-10-03 02:56:08,648 INFO L454 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-03 02:56:08,648 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-03 02:56:08,649 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-03 02:56:08,649 INFO L87 Difference]: Start difference. First operand 1584 states and 2499 transitions. Second operand 2 states. [2019-10-03 02:56:08,650 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-03 02:56:08,650 INFO L93 Difference]: Finished difference Result 2 states and 1 transitions. [2019-10-03 02:56:08,650 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-03 02:56:08,650 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 269 [2019-10-03 02:56:08,650 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-03 02:56:08,650 INFO L225 Difference]: With dead ends: 2 [2019-10-03 02:56:08,650 INFO L226 Difference]: Without dead ends: 0 [2019-10-03 02:56:08,651 INFO L640 BasicCegarLoop]: 0 DeclaredPredicates, 268 GetRequests, 268 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-03 02:56:08,651 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-10-03 02:56:08,651 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-10-03 02:56:08,651 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-10-03 02:56:08,652 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-10-03 02:56:08,652 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 269 [2019-10-03 02:56:08,652 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-03 02:56:08,652 INFO L475 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-10-03 02:56:08,652 INFO L476 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-03 02:56:08,652 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-10-03 02:56:08,652 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-10-03 02:56:08,658 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 03.10 02:56:08 BoogieIcfgContainer [2019-10-03 02:56:08,658 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-10-03 02:56:08,662 INFO L168 Benchmark]: Toolchain (without parser) took 8036.04 ms. Allocated memory was 133.2 MB in the beginning and 415.2 MB in the end (delta: 282.1 MB). Free memory was 85.9 MB in the beginning and 214.8 MB in the end (delta: -128.9 MB). Peak memory consumption was 153.1 MB. Max. memory is 7.1 GB. [2019-10-03 02:56:08,663 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 133.2 MB. Free memory was 107.4 MB in the beginning and 107.2 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. [2019-10-03 02:56:08,665 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1149.98 ms. Allocated memory was 133.2 MB in the beginning and 200.8 MB in the end (delta: 67.6 MB). Free memory was 85.7 MB in the beginning and 133.9 MB in the end (delta: -48.3 MB). Peak memory consumption was 35.1 MB. Max. memory is 7.1 GB. [2019-10-03 02:56:08,666 INFO L168 Benchmark]: Boogie Preprocessor took 216.83 ms. Allocated memory is still 200.8 MB. Free memory was 133.9 MB in the beginning and 124.9 MB in the end (delta: 9.0 MB). Peak memory consumption was 9.0 MB. Max. memory is 7.1 GB. [2019-10-03 02:56:08,669 INFO L168 Benchmark]: RCFGBuilder took 2293.75 ms. Allocated memory was 200.8 MB in the beginning and 264.2 MB in the end (delta: 63.4 MB). Free memory was 124.9 MB in the beginning and 166.2 MB in the end (delta: -41.2 MB). Peak memory consumption was 85.4 MB. Max. memory is 7.1 GB. [2019-10-03 02:56:08,674 INFO L168 Benchmark]: TraceAbstraction took 4370.63 ms. Allocated memory was 264.2 MB in the beginning and 415.2 MB in the end (delta: 151.0 MB). Free memory was 166.2 MB in the beginning and 214.8 MB in the end (delta: -48.7 MB). Peak memory consumption was 102.3 MB. Max. memory is 7.1 GB. [2019-10-03 02:56:08,681 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 133.2 MB. Free memory was 107.4 MB in the beginning and 107.2 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 1149.98 ms. Allocated memory was 133.2 MB in the beginning and 200.8 MB in the end (delta: 67.6 MB). Free memory was 85.7 MB in the beginning and 133.9 MB in the end (delta: -48.3 MB). Peak memory consumption was 35.1 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 216.83 ms. Allocated memory is still 200.8 MB. Free memory was 133.9 MB in the beginning and 124.9 MB in the end (delta: 9.0 MB). Peak memory consumption was 9.0 MB. Max. memory is 7.1 GB. * RCFGBuilder took 2293.75 ms. Allocated memory was 200.8 MB in the beginning and 264.2 MB in the end (delta: 63.4 MB). Free memory was 124.9 MB in the beginning and 166.2 MB in the end (delta: -41.2 MB). Peak memory consumption was 85.4 MB. Max. memory is 7.1 GB. * TraceAbstraction took 4370.63 ms. Allocated memory was 264.2 MB in the beginning and 415.2 MB in the end (delta: 151.0 MB). Free memory was 166.2 MB in the beginning and 214.8 MB in the end (delta: -48.7 MB). Peak memory consumption was 102.3 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 2193]: 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 110 procedures, 745 locations, 1 error locations. SAFE Result, 4.2s OverallTime, 9 OverallIterations, 3 TraceHistogramMax, 0.4s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 4581 SDtfs, 636 SDslu, 3572 SDs, 0 SdLazy, 23 SolverSat, 6 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 298 GetRequests, 291 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1584occurred 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, 1.8805970149253732 AbsIntAvgWeakeningVarsNumRemoved, 0.0 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.4s AutomataMinimizationTime, 9 MinimizatonAttempts, 6 StatesRemovedByMinimization, 6 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.2s SsaConstructionTime, 0.6s SatisfiabilityAnalysisTime, 1.3s InterpolantComputationTime, 1512 NumberOfCodeBlocks, 1512 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 1503 ConstructedInterpolants, 0 QuantifiedInterpolants, 334973 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 9 InterpolantComputations, 8 PerfectInterpolantSequences, 307/315 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...