/usr/bin/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/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf --abstractinterpretationv2.abstract.domain IntervalDomain --traceabstraction.trace.refinement.strategy TAIPAN --traceabstraction.abstract.interpretation.mode USE_PREDICATES -i ../../../trunk/examples/svcomp/product-lines/email_spec6_productSimulator.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-fb55353 [2019-11-07 00:54:01,449 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-07 00:54:01,451 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-07 00:54:01,471 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-07 00:54:01,471 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-07 00:54:01,473 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-07 00:54:01,475 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-07 00:54:01,487 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-07 00:54:01,491 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-07 00:54:01,492 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-07 00:54:01,493 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-07 00:54:01,495 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-07 00:54:01,495 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-07 00:54:01,498 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-07 00:54:01,500 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-07 00:54:01,502 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-07 00:54:01,504 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-07 00:54:01,506 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-07 00:54:01,507 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-07 00:54:01,513 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-07 00:54:01,517 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-07 00:54:01,520 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-07 00:54:01,522 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-07 00:54:01,523 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-07 00:54:01,525 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-07 00:54:01,525 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-07 00:54:01,525 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-07 00:54:01,527 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-07 00:54:01,527 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-07 00:54:01,529 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-07 00:54:01,529 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-07 00:54:01,531 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-07 00:54:01,531 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-07 00:54:01,532 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-07 00:54:01,533 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-07 00:54:01,534 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-07 00:54:01,534 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-07 00:54:01,534 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-07 00:54:01,535 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-07 00:54:01,535 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-07 00:54:01,536 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-07 00:54:01,537 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2019-11-07 00:54:01,552 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-07 00:54:01,552 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-07 00:54:01,553 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-07 00:54:01,554 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-07 00:54:01,554 INFO L138 SettingsManager]: * Use SBE=true [2019-11-07 00:54:01,554 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-07 00:54:01,554 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-07 00:54:01,555 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-07 00:54:01,555 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-07 00:54:01,555 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-07 00:54:01,555 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-07 00:54:01,555 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-07 00:54:01,555 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-07 00:54:01,556 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-07 00:54:01,556 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-07 00:54:01,556 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-07 00:54:01,556 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-07 00:54:01,556 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-07 00:54:01,557 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-07 00:54:01,557 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-07 00:54:01,557 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-07 00:54:01,557 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-07 00:54:01,557 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-07 00:54:01,558 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-07 00:54:01,558 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-07 00:54:01,558 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-07 00:54:01,558 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-07 00:54:01,558 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-07 00:54:01,558 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2: Abstract domain -> IntervalDomain Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> TAIPAN Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Abstract interpretation Mode -> USE_PREDICATES [2019-11-07 00:54:01,845 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-07 00:54:01,868 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-07 00:54:01,871 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-07 00:54:01,873 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-07 00:54:01,873 INFO L275 PluginConnector]: CDTParser initialized [2019-11-07 00:54:01,874 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/email_spec6_productSimulator.cil.c [2019-11-07 00:54:01,952 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/23d31ace8/b2d8cfb6c92446319cf6dbf91ed0bfa5/FLAGe285b1131 [2019-11-07 00:54:02,650 INFO L306 CDTParser]: Found 1 translation units. [2019-11-07 00:54:02,651 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/email_spec6_productSimulator.cil.c [2019-11-07 00:54:02,673 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/23d31ace8/b2d8cfb6c92446319cf6dbf91ed0bfa5/FLAGe285b1131 [2019-11-07 00:54:02,788 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/23d31ace8/b2d8cfb6c92446319cf6dbf91ed0bfa5 [2019-11-07 00:54:02,797 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-07 00:54:02,798 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-11-07 00:54:02,801 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-07 00:54:02,801 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-07 00:54:02,805 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-07 00:54:02,806 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 12:54:02" (1/1) ... [2019-11-07 00:54:02,809 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@48496e02 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:54:02, skipping insertion in model container [2019-11-07 00:54:02,809 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 12:54:02" (1/1) ... [2019-11-07 00:54:02,820 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-07 00:54:02,910 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-07 00:54:03,741 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-07 00:54:03,756 INFO L188 MainTranslator]: Completed pre-run [2019-11-07 00:54:03,904 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-07 00:54:04,055 INFO L192 MainTranslator]: Completed translation [2019-11-07 00:54:04,055 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:54:04 WrapperNode [2019-11-07 00:54:04,056 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-07 00:54:04,056 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-07 00:54:04,056 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-07 00:54:04,057 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-07 00:54:04,071 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:54:04" (1/1) ... [2019-11-07 00:54:04,071 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:54:04" (1/1) ... [2019-11-07 00:54:04,108 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:54:04" (1/1) ... [2019-11-07 00:54:04,109 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:54:04" (1/1) ... [2019-11-07 00:54:04,178 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:54:04" (1/1) ... [2019-11-07 00:54:04,222 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:54:04" (1/1) ... [2019-11-07 00:54:04,238 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:54:04" (1/1) ... [2019-11-07 00:54:04,279 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-07 00:54:04,280 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-07 00:54:04,280 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-07 00:54:04,280 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-07 00:54:04,281 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:54:04" (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 [2019-11-07 00:54:04,366 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-11-07 00:54:04,367 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-07 00:54:04,367 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-11-07 00:54:04,367 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__EncryptDecrypt_spec__1 [2019-11-07 00:54:04,367 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__EncryptDecrypt_spec__2 [2019-11-07 00:54:04,368 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-11-07 00:54:04,368 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-11-07 00:54:04,369 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-11-07 00:54:04,370 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-11-07 00:54:04,370 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-11-07 00:54:04,370 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-11-07 00:54:04,371 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__before__Encrypt [2019-11-07 00:54:04,371 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__role__Encrypt [2019-11-07 00:54:04,372 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__before__Sign [2019-11-07 00:54:04,372 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__role__Sign [2019-11-07 00:54:04,372 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__before__Verify [2019-11-07 00:54:04,375 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__role__Verify [2019-11-07 00:54:04,375 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail [2019-11-07 00:54:04,375 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable__before__Encrypt [2019-11-07 00:54:04,375 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable__role__Encrypt [2019-11-07 00:54:04,375 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2019-11-07 00:54:04,376 INFO L138 BoogieDeclarations]: Found implementation of procedure cloneEmail [2019-11-07 00:54:04,376 INFO L138 BoogieDeclarations]: Found implementation of procedure createEmail [2019-11-07 00:54:04,376 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-11-07 00:54:04,377 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-11-07 00:54:04,377 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-11-07 00:54:04,377 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-11-07 00:54:04,377 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-11-07 00:54:04,377 INFO L138 BoogieDeclarations]: Found implementation of procedure initClient [2019-11-07 00:54:04,378 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientName [2019-11-07 00:54:04,378 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientName [2019-11-07 00:54:04,378 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientOutbuffer [2019-11-07 00:54:04,378 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientOutbuffer [2019-11-07 00:54:04,378 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookSize [2019-11-07 00:54:04,378 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookSize [2019-11-07 00:54:04,379 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientAddressBookEntry [2019-11-07 00:54:04,379 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAlias [2019-11-07 00:54:04,379 INFO L138 BoogieDeclarations]: Found implementation of procedure findClientAddressBookAlias [2019-11-07 00:54:04,379 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAlias [2019-11-07 00:54:04,379 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAddress [2019-11-07 00:54:04,379 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAddress [2019-11-07 00:54:04,380 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAutoResponse [2019-11-07 00:54:04,380 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAutoResponse [2019-11-07 00:54:04,380 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientPrivateKey [2019-11-07 00:54:04,380 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2019-11-07 00:54:04,380 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringSize [2019-11-07 00:54:04,380 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringSize [2019-11-07 00:54:04,381 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2019-11-07 00:54:04,381 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringUser [2019-11-07 00:54:04,381 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2019-11-07 00:54:04,381 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringPublicKey [2019-11-07 00:54:04,381 INFO L138 BoogieDeclarations]: Found implementation of procedure findPublicKey [2019-11-07 00:54:04,381 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2019-11-07 00:54:04,382 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientForwardReceiver [2019-11-07 00:54:04,382 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientForwardReceiver [2019-11-07 00:54:04,382 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientId [2019-11-07 00:54:04,382 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2019-11-07 00:54:04,382 INFO L138 BoogieDeclarations]: Found implementation of procedure prompt [2019-11-07 00:54:04,383 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-11-07 00:54:04,383 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob__before__Keys [2019-11-07 00:54:04,383 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob__role__Keys [2019-11-07 00:54:04,383 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob [2019-11-07 00:54:04,384 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh__before__Keys [2019-11-07 00:54:04,384 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh__role__Keys [2019-11-07 00:54:04,384 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh [2019-11-07 00:54:04,385 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck__before__Keys [2019-11-07 00:54:04,385 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck__role__Keys [2019-11-07 00:54:04,385 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck [2019-11-07 00:54:04,385 INFO L138 BoogieDeclarations]: Found implementation of procedure bobToRjh [2019-11-07 00:54:04,385 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhToBob [2019-11-07 00:54:04,385 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-11-07 00:54:04,386 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-11-07 00:54:04,386 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAdd [2019-11-07 00:54:04,387 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAdd [2019-11-07 00:54:04,387 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAddChuck [2019-11-07 00:54:04,387 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAddChuck [2019-11-07 00:54:04,387 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2019-11-07 00:54:04,387 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAddRjh [2019-11-07 00:54:04,387 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhDeletePrivateKey [2019-11-07 00:54:04,388 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyChange [2019-11-07 00:54:04,388 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyChange [2019-11-07 00:54:04,389 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhSetAutoRespond [2019-11-07 00:54:04,389 INFO L138 BoogieDeclarations]: Found implementation of procedure bobSetAddressBook [2019-11-07 00:54:04,389 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhEnableForwarding [2019-11-07 00:54:04,389 INFO L138 BoogieDeclarations]: Found implementation of procedure initEmail [2019-11-07 00:54:04,390 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailId [2019-11-07 00:54:04,390 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailId [2019-11-07 00:54:04,391 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2019-11-07 00:54:04,391 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2019-11-07 00:54:04,392 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2019-11-07 00:54:04,392 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2019-11-07 00:54:04,392 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSubject [2019-11-07 00:54:04,392 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSubject [2019-11-07 00:54:04,392 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailBody [2019-11-07 00:54:04,392 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailBody [2019-11-07 00:54:04,393 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2019-11-07 00:54:04,393 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2019-11-07 00:54:04,393 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2019-11-07 00:54:04,393 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2019-11-07 00:54:04,393 INFO L138 BoogieDeclarations]: Found implementation of procedure isSigned [2019-11-07 00:54:04,393 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSigned [2019-11-07 00:54:04,394 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSignKey [2019-11-07 00:54:04,394 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSignKey [2019-11-07 00:54:04,394 INFO L138 BoogieDeclarations]: Found implementation of procedure isVerified [2019-11-07 00:54:04,394 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSignatureVerified [2019-11-07 00:54:04,394 INFO L138 BoogieDeclarations]: Found implementation of procedure mail [2019-11-07 00:54:04,394 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__before__Encrypt [2019-11-07 00:54:04,395 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__role__Encrypt [2019-11-07 00:54:04,395 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__before__AddressBook [2019-11-07 00:54:04,395 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__role__AddressBook [2019-11-07 00:54:04,395 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__before__Sign [2019-11-07 00:54:04,395 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__role__Sign [2019-11-07 00:54:04,395 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2019-11-07 00:54:04,396 INFO L138 BoogieDeclarations]: Found implementation of procedure deliver [2019-11-07 00:54:04,396 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__before__AutoResponder [2019-11-07 00:54:04,396 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__role__AutoResponder [2019-11-07 00:54:04,396 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__before__Forward [2019-11-07 00:54:04,397 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__role__Forward [2019-11-07 00:54:04,397 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__before__Verify [2019-11-07 00:54:04,397 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__role__Verify [2019-11-07 00:54:04,398 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__before__Decrypt [2019-11-07 00:54:04,398 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__role__Decrypt [2019-11-07 00:54:04,398 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming [2019-11-07 00:54:04,398 INFO L138 BoogieDeclarations]: Found implementation of procedure createClient [2019-11-07 00:54:04,399 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2019-11-07 00:54:04,400 INFO L138 BoogieDeclarations]: Found implementation of procedure queue [2019-11-07 00:54:04,400 INFO L138 BoogieDeclarations]: Found implementation of procedure is_queue_empty [2019-11-07 00:54:04,400 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_client [2019-11-07 00:54:04,400 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_email [2019-11-07 00:54:04,400 INFO L138 BoogieDeclarations]: Found implementation of procedure isKeyPairValid [2019-11-07 00:54:04,401 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2019-11-07 00:54:04,401 INFO L138 BoogieDeclarations]: Found implementation of procedure autoRespond [2019-11-07 00:54:04,401 INFO L138 BoogieDeclarations]: Found implementation of procedure sendToAddressBook [2019-11-07 00:54:04,402 INFO L138 BoogieDeclarations]: Found implementation of procedure sign [2019-11-07 00:54:04,402 INFO L138 BoogieDeclarations]: Found implementation of procedure forward [2019-11-07 00:54:04,405 INFO L138 BoogieDeclarations]: Found implementation of procedure verify [2019-11-07 00:54:04,407 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-11-07 00:54:04,411 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-11-07 00:54:04,411 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-11-07 00:54:04,411 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2019-11-07 00:54:04,412 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2019-11-07 00:54:04,412 INFO L130 BoogieDeclarations]: Found specification of procedure getClientPrivateKey [2019-11-07 00:54:04,432 INFO L130 BoogieDeclarations]: Found specification of procedure isKeyPairValid [2019-11-07 00:54:04,432 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-11-07 00:54:04,432 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2019-11-07 00:54:04,433 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__EncryptDecrypt_spec__1 [2019-11-07 00:54:04,433 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-07 00:54:04,433 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__EncryptDecrypt_spec__2 [2019-11-07 00:54:04,433 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-11-07 00:54:04,433 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-11-07 00:54:04,433 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-11-07 00:54:04,434 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-11-07 00:54:04,434 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-11-07 00:54:04,434 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-11-07 00:54:04,434 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-11-07 00:54:04,434 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-11-07 00:54:04,434 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-11-07 00:54:04,434 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-07 00:54:04,435 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-11-07 00:54:04,435 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-11-07 00:54:04,435 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-11-07 00:54:04,435 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-11-07 00:54:04,435 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-11-07 00:54:04,435 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-11-07 00:54:04,435 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailId [2019-11-07 00:54:04,436 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2019-11-07 00:54:04,436 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2019-11-07 00:54:04,436 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2019-11-07 00:54:04,436 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2019-11-07 00:54:04,436 INFO L130 BoogieDeclarations]: Found specification of procedure isSigned [2019-11-07 00:54:04,436 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSignKey [2019-11-07 00:54:04,437 INFO L130 BoogieDeclarations]: Found specification of procedure isVerified [2019-11-07 00:54:04,437 INFO L130 BoogieDeclarations]: Found specification of procedure printMail [2019-11-07 00:54:04,437 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2019-11-07 00:54:04,437 INFO L130 BoogieDeclarations]: Found specification of procedure createEmail [2019-11-07 00:54:04,437 INFO L130 BoogieDeclarations]: Found specification of procedure cloneEmail [2019-11-07 00:54:04,437 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__before__Encrypt [2019-11-07 00:54:04,437 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__role__Encrypt [2019-11-07 00:54:04,438 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__before__Sign [2019-11-07 00:54:04,438 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__role__Sign [2019-11-07 00:54:04,438 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__before__Verify [2019-11-07 00:54:04,438 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__role__Verify [2019-11-07 00:54:04,438 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable__before__Encrypt [2019-11-07 00:54:04,438 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable__role__Encrypt [2019-11-07 00:54:04,438 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-11-07 00:54:04,439 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-11-07 00:54:04,439 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-11-07 00:54:04,439 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-11-07 00:54:04,439 INFO L130 BoogieDeclarations]: Found specification of procedure initClient [2019-11-07 00:54:04,439 INFO L130 BoogieDeclarations]: Found specification of procedure getClientName [2019-11-07 00:54:04,439 INFO L130 BoogieDeclarations]: Found specification of procedure setClientName [2019-11-07 00:54:04,439 INFO L130 BoogieDeclarations]: Found specification of procedure getClientOutbuffer [2019-11-07 00:54:04,440 INFO L130 BoogieDeclarations]: Found specification of procedure setClientOutbuffer [2019-11-07 00:54:04,440 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookSize [2019-11-07 00:54:04,440 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookSize [2019-11-07 00:54:04,440 INFO L130 BoogieDeclarations]: Found specification of procedure createClientAddressBookEntry [2019-11-07 00:54:04,440 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAlias [2019-11-07 00:54:04,440 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAlias [2019-11-07 00:54:04,441 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAddress [2019-11-07 00:54:04,441 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAddress [2019-11-07 00:54:04,441 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAutoResponse [2019-11-07 00:54:04,441 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAutoResponse [2019-11-07 00:54:04,441 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2019-11-07 00:54:04,441 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringSize [2019-11-07 00:54:04,441 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2019-11-07 00:54:04,442 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringUser [2019-11-07 00:54:04,442 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2019-11-07 00:54:04,442 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringPublicKey [2019-11-07 00:54:04,442 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2019-11-07 00:54:04,442 INFO L130 BoogieDeclarations]: Found specification of procedure getClientForwardReceiver [2019-11-07 00:54:04,442 INFO L130 BoogieDeclarations]: Found specification of procedure setClientForwardReceiver [2019-11-07 00:54:04,443 INFO L130 BoogieDeclarations]: Found specification of procedure getClientId [2019-11-07 00:54:04,443 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2019-11-07 00:54:04,443 INFO L130 BoogieDeclarations]: Found specification of procedure findPublicKey [2019-11-07 00:54:04,443 INFO L130 BoogieDeclarations]: Found specification of procedure findClientAddressBookAlias [2019-11-07 00:54:04,443 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringSize [2019-11-07 00:54:04,443 INFO L130 BoogieDeclarations]: Found specification of procedure prompt [2019-11-07 00:54:04,443 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAdd [2019-11-07 00:54:04,444 INFO L130 BoogieDeclarations]: Found specification of procedure rjhSetAutoRespond [2019-11-07 00:54:04,444 INFO L130 BoogieDeclarations]: Found specification of procedure rjhDeletePrivateKey [2019-11-07 00:54:04,444 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAdd [2019-11-07 00:54:04,444 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAddRjh [2019-11-07 00:54:04,444 INFO L130 BoogieDeclarations]: Found specification of procedure rjhEnableForwarding [2019-11-07 00:54:04,444 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyChange [2019-11-07 00:54:04,444 INFO L130 BoogieDeclarations]: Found specification of procedure bobSetAddressBook [2019-11-07 00:54:04,445 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2019-11-07 00:54:04,445 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyChange [2019-11-07 00:54:04,445 INFO L130 BoogieDeclarations]: Found specification of procedure bobToRjh [2019-11-07 00:54:04,445 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-11-07 00:54:04,445 INFO L130 BoogieDeclarations]: Found specification of procedure is_queue_empty [2019-11-07 00:54:04,445 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_client [2019-11-07 00:54:04,445 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_email [2019-11-07 00:54:04,446 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2019-11-07 00:54:04,446 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2019-11-07 00:54:04,446 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2019-11-07 00:54:04,446 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob [2019-11-07 00:54:04,446 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh [2019-11-07 00:54:04,446 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck [2019-11-07 00:54:04,446 INFO L130 BoogieDeclarations]: Found specification of procedure rjhToBob [2019-11-07 00:54:04,447 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-11-07 00:54:04,447 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-11-07 00:54:04,447 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAddChuck [2019-11-07 00:54:04,447 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAddChuck [2019-11-07 00:54:04,447 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob__before__Keys [2019-11-07 00:54:04,447 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob__role__Keys [2019-11-07 00:54:04,447 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh__before__Keys [2019-11-07 00:54:04,448 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh__role__Keys [2019-11-07 00:54:04,448 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck__before__Keys [2019-11-07 00:54:04,448 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck__role__Keys [2019-11-07 00:54:04,448 INFO L130 BoogieDeclarations]: Found specification of procedure initEmail [2019-11-07 00:54:04,448 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailId [2019-11-07 00:54:04,448 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSubject [2019-11-07 00:54:04,449 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSubject [2019-11-07 00:54:04,449 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailBody [2019-11-07 00:54:04,449 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailBody [2019-11-07 00:54:04,449 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2019-11-07 00:54:04,449 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2019-11-07 00:54:04,449 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSigned [2019-11-07 00:54:04,450 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSignKey [2019-11-07 00:54:04,450 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSignatureVerified [2019-11-07 00:54:04,450 INFO L130 BoogieDeclarations]: Found specification of procedure queue [2019-11-07 00:54:04,450 INFO L130 BoogieDeclarations]: Found specification of procedure mail [2019-11-07 00:54:04,450 INFO L130 BoogieDeclarations]: Found specification of procedure deliver [2019-11-07 00:54:04,450 INFO L130 BoogieDeclarations]: Found specification of procedure incoming [2019-11-07 00:54:04,450 INFO L130 BoogieDeclarations]: Found specification of procedure createClient [2019-11-07 00:54:04,451 INFO L130 BoogieDeclarations]: Found specification of procedure autoRespond [2019-11-07 00:54:04,451 INFO L130 BoogieDeclarations]: Found specification of procedure sendToAddressBook [2019-11-07 00:54:04,451 INFO L130 BoogieDeclarations]: Found specification of procedure sign [2019-11-07 00:54:04,451 INFO L130 BoogieDeclarations]: Found specification of procedure forward [2019-11-07 00:54:04,451 INFO L130 BoogieDeclarations]: Found specification of procedure verify [2019-11-07 00:54:04,451 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__before__Encrypt [2019-11-07 00:54:04,451 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__role__Encrypt [2019-11-07 00:54:04,452 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__before__AddressBook [2019-11-07 00:54:04,452 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__role__AddressBook [2019-11-07 00:54:04,452 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__before__Sign [2019-11-07 00:54:04,452 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__role__Sign [2019-11-07 00:54:04,452 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__before__AutoResponder [2019-11-07 00:54:04,452 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__role__AutoResponder [2019-11-07 00:54:04,452 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__before__Forward [2019-11-07 00:54:04,453 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__role__Forward [2019-11-07 00:54:04,453 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__before__Verify [2019-11-07 00:54:04,453 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__role__Verify [2019-11-07 00:54:04,453 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__before__Decrypt [2019-11-07 00:54:04,453 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__role__Decrypt [2019-11-07 00:54:04,453 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-11-07 00:54:04,453 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-11-07 00:54:04,454 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-07 00:54:06,964 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-07 00:54:06,964 INFO L284 CfgBuilder]: Removed 4 assume(true) statements. [2019-11-07 00:54:06,966 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 12:54:06 BoogieIcfgContainer [2019-11-07 00:54:06,967 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-07 00:54:06,968 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-07 00:54:06,968 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-07 00:54:06,971 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-07 00:54:06,971 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 12:54:02" (1/3) ... [2019-11-07 00:54:06,972 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3a066a5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 12:54:06, skipping insertion in model container [2019-11-07 00:54:06,972 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:54:04" (2/3) ... [2019-11-07 00:54:06,973 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3a066a5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 12:54:06, skipping insertion in model container [2019-11-07 00:54:06,973 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 12:54:06" (3/3) ... [2019-11-07 00:54:06,975 INFO L109 eAbstractionObserver]: Analyzing ICFG email_spec6_productSimulator.cil.c [2019-11-07 00:54:06,986 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-07 00:54:06,997 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-07 00:54:07,011 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-07 00:54:07,052 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-07 00:54:07,053 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-07 00:54:07,053 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-07 00:54:07,053 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-07 00:54:07,053 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-07 00:54:07,053 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-07 00:54:07,053 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-07 00:54:07,053 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-07 00:54:07,102 INFO L276 IsEmpty]: Start isEmpty. Operand 822 states. [2019-11-07 00:54:07,142 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 202 [2019-11-07 00:54:07,142 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 00:54:07,145 INFO L410 BasicCegarLoop]: trace histogram [8, 8, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-07 00:54:07,149 INFO L410 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 00:54:07,155 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 00:54:07,156 INFO L82 PathProgramCache]: Analyzing trace with hash 924149196, now seen corresponding path program 1 times [2019-11-07 00:54:07,168 INFO L161 FreeRefinementEngine]: Executing refinement strategy TAIPAN [2019-11-07 00:54:07,168 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1278859757] [2019-11-07 00:54:07,169 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 00:54:07,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 00:54:07,996 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 100 trivial. 0 not checked. [2019-11-07 00:54:07,997 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1278859757] [2019-11-07 00:54:07,998 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 00:54:07,998 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-11-07 00:54:07,999 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1719645852] [2019-11-07 00:54:08,004 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-11-07 00:54:08,006 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-11-07 00:54:08,021 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-11-07 00:54:08,022 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-11-07 00:54:08,024 INFO L87 Difference]: Start difference. First operand 822 states. Second operand 6 states. [2019-11-07 00:54:08,288 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 00:54:08,288 INFO L93 Difference]: Finished difference Result 1562 states and 2158 transitions. [2019-11-07 00:54:08,289 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-11-07 00:54:08,290 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 201 [2019-11-07 00:54:08,291 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 00:54:08,321 INFO L225 Difference]: With dead ends: 1562 [2019-11-07 00:54:08,322 INFO L226 Difference]: Without dead ends: 793 [2019-11-07 00:54:08,334 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2019-11-07 00:54:08,356 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 793 states. [2019-11-07 00:54:08,449 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 793 to 793. [2019-11-07 00:54:08,451 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 793 states. [2019-11-07 00:54:08,460 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 793 states to 793 states and 1079 transitions. [2019-11-07 00:54:08,466 INFO L78 Accepts]: Start accepts. Automaton has 793 states and 1079 transitions. Word has length 201 [2019-11-07 00:54:08,468 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 00:54:08,468 INFO L462 AbstractCegarLoop]: Abstraction has 793 states and 1079 transitions. [2019-11-07 00:54:08,469 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-11-07 00:54:08,469 INFO L276 IsEmpty]: Start isEmpty. Operand 793 states and 1079 transitions. [2019-11-07 00:54:08,481 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 208 [2019-11-07 00:54:08,483 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 00:54:08,483 INFO L410 BasicCegarLoop]: trace histogram [8, 8, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-07 00:54:08,484 INFO L410 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 00:54:08,484 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 00:54:08,484 INFO L82 PathProgramCache]: Analyzing trace with hash 1049194950, now seen corresponding path program 1 times [2019-11-07 00:54:08,485 INFO L161 FreeRefinementEngine]: Executing refinement strategy TAIPAN [2019-11-07 00:54:08,485 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [105784581] [2019-11-07 00:54:08,485 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 00:54:08,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 00:54:08,802 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 100 trivial. 0 not checked. [2019-11-07 00:54:08,802 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [105784581] [2019-11-07 00:54:08,803 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 00:54:08,803 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-11-07 00:54:08,803 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [725179078] [2019-11-07 00:54:08,808 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-11-07 00:54:08,808 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-11-07 00:54:08,808 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-07 00:54:08,808 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-11-07 00:54:08,809 INFO L87 Difference]: Start difference. First operand 793 states and 1079 transitions. Second operand 4 states. [2019-11-07 00:54:09,744 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 00:54:09,744 INFO L93 Difference]: Finished difference Result 1549 states and 2143 transitions. [2019-11-07 00:54:09,745 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-11-07 00:54:09,745 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 207 [2019-11-07 00:54:09,745 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 00:54:09,752 INFO L225 Difference]: With dead ends: 1549 [2019-11-07 00:54:09,753 INFO L226 Difference]: Without dead ends: 792 [2019-11-07 00:54:09,756 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-11-07 00:54:09,758 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 792 states. [2019-11-07 00:54:09,799 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 792 to 792. [2019-11-07 00:54:09,799 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 792 states. [2019-11-07 00:54:09,805 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 792 states to 792 states and 1069 transitions. [2019-11-07 00:54:09,806 INFO L78 Accepts]: Start accepts. Automaton has 792 states and 1069 transitions. Word has length 207 [2019-11-07 00:54:09,807 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 00:54:09,807 INFO L462 AbstractCegarLoop]: Abstraction has 792 states and 1069 transitions. [2019-11-07 00:54:09,807 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-11-07 00:54:09,807 INFO L276 IsEmpty]: Start isEmpty. Operand 792 states and 1069 transitions. [2019-11-07 00:54:09,813 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 226 [2019-11-07 00:54:09,813 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 00:54:09,813 INFO L410 BasicCegarLoop]: trace histogram [8, 8, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-07 00:54:09,814 INFO L410 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 00:54:09,814 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 00:54:09,814 INFO L82 PathProgramCache]: Analyzing trace with hash -664610348, now seen corresponding path program 1 times [2019-11-07 00:54:09,814 INFO L161 FreeRefinementEngine]: Executing refinement strategy TAIPAN [2019-11-07 00:54:09,815 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1492774339] [2019-11-07 00:54:09,815 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 00:54:09,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 00:54:10,006 INFO L134 CoverageAnalysis]: Checked inductivity of 104 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 104 trivial. 0 not checked. [2019-11-07 00:54:10,006 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1492774339] [2019-11-07 00:54:10,006 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 00:54:10,007 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-07 00:54:10,012 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1112521396] [2019-11-07 00:54:10,014 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-07 00:54:10,015 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-11-07 00:54:10,015 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-07 00:54:10,015 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-07 00:54:10,015 INFO L87 Difference]: Start difference. First operand 792 states and 1069 transitions. Second operand 3 states. [2019-11-07 00:54:10,324 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 00:54:10,324 INFO L93 Difference]: Finished difference Result 1542 states and 2102 transitions. [2019-11-07 00:54:10,325 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-07 00:54:10,325 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 225 [2019-11-07 00:54:10,326 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 00:54:10,336 INFO L225 Difference]: With dead ends: 1542 [2019-11-07 00:54:10,336 INFO L226 Difference]: Without dead ends: 791 [2019-11-07 00:54:10,341 INFO L630 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 [2019-11-07 00:54:10,344 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 791 states. [2019-11-07 00:54:10,403 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 791 to 791. [2019-11-07 00:54:10,404 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 791 states. [2019-11-07 00:54:10,410 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 791 states to 791 states and 1065 transitions. [2019-11-07 00:54:10,412 INFO L78 Accepts]: Start accepts. Automaton has 791 states and 1065 transitions. Word has length 225 [2019-11-07 00:54:10,412 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 00:54:10,412 INFO L462 AbstractCegarLoop]: Abstraction has 791 states and 1065 transitions. [2019-11-07 00:54:10,413 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-07 00:54:10,413 INFO L276 IsEmpty]: Start isEmpty. Operand 791 states and 1065 transitions. [2019-11-07 00:54:10,418 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 227 [2019-11-07 00:54:10,419 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 00:54:10,419 INFO L410 BasicCegarLoop]: trace histogram [8, 8, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-07 00:54:10,419 INFO L410 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 00:54:10,420 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 00:54:10,420 INFO L82 PathProgramCache]: Analyzing trace with hash -1053060183, now seen corresponding path program 1 times [2019-11-07 00:54:10,420 INFO L161 FreeRefinementEngine]: Executing refinement strategy TAIPAN [2019-11-07 00:54:10,420 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1576181126] [2019-11-07 00:54:10,421 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 00:54:10,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 00:54:10,716 INFO L134 CoverageAnalysis]: Checked inductivity of 104 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 104 trivial. 0 not checked. [2019-11-07 00:54:10,717 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1576181126] [2019-11-07 00:54:10,717 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 00:54:10,717 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-11-07 00:54:10,718 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1450287263] [2019-11-07 00:54:10,718 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-11-07 00:54:10,719 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-11-07 00:54:10,719 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-07 00:54:10,719 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-11-07 00:54:10,719 INFO L87 Difference]: Start difference. First operand 791 states and 1065 transitions. Second operand 4 states. [2019-11-07 00:54:11,595 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 00:54:11,595 INFO L93 Difference]: Finished difference Result 1513 states and 2048 transitions. [2019-11-07 00:54:11,595 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-11-07 00:54:11,596 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 226 [2019-11-07 00:54:11,596 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 00:54:11,601 INFO L225 Difference]: With dead ends: 1513 [2019-11-07 00:54:11,601 INFO L226 Difference]: Without dead ends: 788 [2019-11-07 00:54:11,604 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-11-07 00:54:11,606 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 788 states. [2019-11-07 00:54:11,642 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 788 to 788. [2019-11-07 00:54:11,642 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 788 states. [2019-11-07 00:54:11,648 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 788 states to 788 states and 1048 transitions. [2019-11-07 00:54:11,649 INFO L78 Accepts]: Start accepts. Automaton has 788 states and 1048 transitions. Word has length 226 [2019-11-07 00:54:11,651 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 00:54:11,651 INFO L462 AbstractCegarLoop]: Abstraction has 788 states and 1048 transitions. [2019-11-07 00:54:11,651 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-11-07 00:54:11,651 INFO L276 IsEmpty]: Start isEmpty. Operand 788 states and 1048 transitions. [2019-11-07 00:54:11,655 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 254 [2019-11-07 00:54:11,656 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 00:54:11,656 INFO L410 BasicCegarLoop]: trace histogram [8, 8, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-07 00:54:11,656 INFO L410 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 00:54:11,657 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 00:54:11,657 INFO L82 PathProgramCache]: Analyzing trace with hash 1140703033, now seen corresponding path program 1 times [2019-11-07 00:54:11,657 INFO L161 FreeRefinementEngine]: Executing refinement strategy TAIPAN [2019-11-07 00:54:11,658 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2013191515] [2019-11-07 00:54:11,658 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 00:54:11,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 00:54:11,873 INFO L134 CoverageAnalysis]: Checked inductivity of 116 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 116 trivial. 0 not checked. [2019-11-07 00:54:11,874 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2013191515] [2019-11-07 00:54:11,874 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 00:54:11,874 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-07 00:54:11,875 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [419701534] [2019-11-07 00:54:11,876 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-07 00:54:11,876 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-11-07 00:54:11,876 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-07 00:54:11,877 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-07 00:54:11,877 INFO L87 Difference]: Start difference. First operand 788 states and 1048 transitions. Second operand 3 states. [2019-11-07 00:54:11,942 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 00:54:11,942 INFO L93 Difference]: Finished difference Result 1229 states and 1615 transitions. [2019-11-07 00:54:11,942 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-07 00:54:11,943 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 253 [2019-11-07 00:54:11,944 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 00:54:11,952 INFO L225 Difference]: With dead ends: 1229 [2019-11-07 00:54:11,952 INFO L226 Difference]: Without dead ends: 791 [2019-11-07 00:54:11,955 INFO L630 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 [2019-11-07 00:54:11,958 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 791 states. [2019-11-07 00:54:11,999 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 791 to 790. [2019-11-07 00:54:12,000 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 790 states. [2019-11-07 00:54:12,008 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 790 states to 790 states and 1050 transitions. [2019-11-07 00:54:12,008 INFO L78 Accepts]: Start accepts. Automaton has 790 states and 1050 transitions. Word has length 253 [2019-11-07 00:54:12,009 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 00:54:12,009 INFO L462 AbstractCegarLoop]: Abstraction has 790 states and 1050 transitions. [2019-11-07 00:54:12,010 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-07 00:54:12,010 INFO L276 IsEmpty]: Start isEmpty. Operand 790 states and 1050 transitions. [2019-11-07 00:54:12,017 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 262 [2019-11-07 00:54:12,017 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 00:54:12,017 INFO L410 BasicCegarLoop]: trace histogram [8, 8, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-07 00:54:12,018 INFO L410 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 00:54:12,018 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 00:54:12,018 INFO L82 PathProgramCache]: Analyzing trace with hash 548051965, now seen corresponding path program 1 times [2019-11-07 00:54:12,018 INFO L161 FreeRefinementEngine]: Executing refinement strategy TAIPAN [2019-11-07 00:54:12,019 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [424713893] [2019-11-07 00:54:12,019 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 00:54:12,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 00:54:12,302 INFO L134 CoverageAnalysis]: Checked inductivity of 118 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 116 trivial. 0 not checked. [2019-11-07 00:54:12,303 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [424713893] [2019-11-07 00:54:12,304 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 00:54:12,305 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-07 00:54:12,305 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1974503899] [2019-11-07 00:54:12,306 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-07 00:54:12,306 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-11-07 00:54:12,306 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-07 00:54:12,306 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-07 00:54:12,306 INFO L87 Difference]: Start difference. First operand 790 states and 1050 transitions. Second operand 3 states. [2019-11-07 00:54:12,360 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 00:54:12,360 INFO L93 Difference]: Finished difference Result 1518 states and 2056 transitions. [2019-11-07 00:54:12,360 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-07 00:54:12,361 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 261 [2019-11-07 00:54:12,361 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 00:54:12,368 INFO L225 Difference]: With dead ends: 1518 [2019-11-07 00:54:12,368 INFO L226 Difference]: Without dead ends: 845 [2019-11-07 00:54:12,371 INFO L630 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 [2019-11-07 00:54:12,373 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 845 states. [2019-11-07 00:54:12,415 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 845 to 844. [2019-11-07 00:54:12,418 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 844 states. [2019-11-07 00:54:12,423 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 844 states to 844 states and 1138 transitions. [2019-11-07 00:54:12,423 INFO L78 Accepts]: Start accepts. Automaton has 844 states and 1138 transitions. Word has length 261 [2019-11-07 00:54:12,427 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 00:54:12,427 INFO L462 AbstractCegarLoop]: Abstraction has 844 states and 1138 transitions. [2019-11-07 00:54:12,427 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-07 00:54:12,427 INFO L276 IsEmpty]: Start isEmpty. Operand 844 states and 1138 transitions. [2019-11-07 00:54:12,433 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 263 [2019-11-07 00:54:12,434 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 00:54:12,434 INFO L410 BasicCegarLoop]: trace histogram [8, 8, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-07 00:54:12,434 INFO L410 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 00:54:12,434 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 00:54:12,435 INFO L82 PathProgramCache]: Analyzing trace with hash -1285741977, now seen corresponding path program 1 times [2019-11-07 00:54:12,435 INFO L161 FreeRefinementEngine]: Executing refinement strategy TAIPAN [2019-11-07 00:54:12,435 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1653584087] [2019-11-07 00:54:12,435 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 00:54:12,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 00:54:12,852 INFO L134 CoverageAnalysis]: Checked inductivity of 118 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 118 trivial. 0 not checked. [2019-11-07 00:54:12,853 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1653584087] [2019-11-07 00:54:12,853 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 00:54:12,853 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2019-11-07 00:54:12,853 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1568951952] [2019-11-07 00:54:12,856 INFO L442 AbstractCegarLoop]: Interpolant automaton has 11 states [2019-11-07 00:54:12,856 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-11-07 00:54:12,857 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2019-11-07 00:54:12,858 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2019-11-07 00:54:12,858 INFO L87 Difference]: Start difference. First operand 844 states and 1138 transitions. Second operand 11 states. [2019-11-07 00:54:23,675 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 00:54:23,676 INFO L93 Difference]: Finished difference Result 4616 states and 6640 transitions. [2019-11-07 00:54:23,676 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2019-11-07 00:54:23,676 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 262 [2019-11-07 00:54:23,677 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 00:54:23,704 INFO L225 Difference]: With dead ends: 4616 [2019-11-07 00:54:23,704 INFO L226 Difference]: Without dead ends: 4191 [2019-11-07 00:54:23,709 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 327 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=325, Invalid=1007, Unknown=0, NotChecked=0, Total=1332 [2019-11-07 00:54:23,715 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4191 states. [2019-11-07 00:54:23,906 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4191 to 4170. [2019-11-07 00:54:23,906 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4170 states. [2019-11-07 00:54:23,925 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4170 states to 4170 states and 5674 transitions. [2019-11-07 00:54:23,926 INFO L78 Accepts]: Start accepts. Automaton has 4170 states and 5674 transitions. Word has length 262 [2019-11-07 00:54:23,928 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 00:54:23,929 INFO L462 AbstractCegarLoop]: Abstraction has 4170 states and 5674 transitions. [2019-11-07 00:54:23,929 INFO L463 AbstractCegarLoop]: Interpolant automaton has 11 states. [2019-11-07 00:54:23,929 INFO L276 IsEmpty]: Start isEmpty. Operand 4170 states and 5674 transitions. [2019-11-07 00:54:23,934 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 264 [2019-11-07 00:54:23,935 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 00:54:23,935 INFO L410 BasicCegarLoop]: trace histogram [8, 8, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-07 00:54:23,935 INFO L410 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 00:54:23,936 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 00:54:23,936 INFO L82 PathProgramCache]: Analyzing trace with hash 1735445867, now seen corresponding path program 1 times [2019-11-07 00:54:23,936 INFO L161 FreeRefinementEngine]: Executing refinement strategy TAIPAN [2019-11-07 00:54:23,936 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [36007187] [2019-11-07 00:54:23,937 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 00:54:24,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 00:54:24,533 INFO L134 CoverageAnalysis]: Checked inductivity of 118 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 118 trivial. 0 not checked. [2019-11-07 00:54:24,533 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [36007187] [2019-11-07 00:54:24,534 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 00:54:24,534 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2019-11-07 00:54:24,534 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1108634018] [2019-11-07 00:54:24,535 INFO L442 AbstractCegarLoop]: Interpolant automaton has 22 states [2019-11-07 00:54:24,536 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-11-07 00:54:24,536 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2019-11-07 00:54:24,536 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=421, Unknown=0, NotChecked=0, Total=462 [2019-11-07 00:54:24,536 INFO L87 Difference]: Start difference. First operand 4170 states and 5674 transitions. Second operand 22 states. [2019-11-07 00:54:25,488 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 00:54:25,488 INFO L93 Difference]: Finished difference Result 7667 states and 10406 transitions. [2019-11-07 00:54:25,488 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2019-11-07 00:54:25,489 INFO L78 Accepts]: Start accepts. Automaton has 22 states. Word has length 263 [2019-11-07 00:54:25,491 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 00:54:25,517 INFO L225 Difference]: With dead ends: 7667 [2019-11-07 00:54:25,518 INFO L226 Difference]: Without dead ends: 4280 [2019-11-07 00:54:25,528 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=77, Invalid=853, Unknown=0, NotChecked=0, Total=930 [2019-11-07 00:54:25,534 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4280 states. [2019-11-07 00:54:25,712 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4280 to 4280. [2019-11-07 00:54:25,712 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4280 states. [2019-11-07 00:54:25,729 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4280 states to 4280 states and 5819 transitions. [2019-11-07 00:54:25,731 INFO L78 Accepts]: Start accepts. Automaton has 4280 states and 5819 transitions. Word has length 263 [2019-11-07 00:54:25,732 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 00:54:25,732 INFO L462 AbstractCegarLoop]: Abstraction has 4280 states and 5819 transitions. [2019-11-07 00:54:25,732 INFO L463 AbstractCegarLoop]: Interpolant automaton has 22 states. [2019-11-07 00:54:25,732 INFO L276 IsEmpty]: Start isEmpty. Operand 4280 states and 5819 transitions. [2019-11-07 00:54:25,742 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 273 [2019-11-07 00:54:25,742 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 00:54:25,742 INFO L410 BasicCegarLoop]: trace histogram [8, 8, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-07 00:54:25,743 INFO L410 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 00:54:25,743 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 00:54:25,743 INFO L82 PathProgramCache]: Analyzing trace with hash 2129296523, now seen corresponding path program 1 times [2019-11-07 00:54:25,743 INFO L161 FreeRefinementEngine]: Executing refinement strategy TAIPAN [2019-11-07 00:54:25,743 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [134469767] [2019-11-07 00:54:25,744 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 00:54:25,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 00:54:26,245 INFO L134 CoverageAnalysis]: Checked inductivity of 118 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 118 trivial. 0 not checked. [2019-11-07 00:54:26,246 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [134469767] [2019-11-07 00:54:26,246 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 00:54:26,246 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [24] imperfect sequences [] total 24 [2019-11-07 00:54:26,247 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [710066275] [2019-11-07 00:54:26,247 INFO L442 AbstractCegarLoop]: Interpolant automaton has 24 states [2019-11-07 00:54:26,247 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-11-07 00:54:26,248 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2019-11-07 00:54:26,248 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=507, Unknown=0, NotChecked=0, Total=552 [2019-11-07 00:54:26,248 INFO L87 Difference]: Start difference. First operand 4280 states and 5819 transitions. Second operand 24 states. [2019-11-07 00:54:27,226 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 00:54:27,227 INFO L93 Difference]: Finished difference Result 8259 states and 11369 transitions. [2019-11-07 00:54:27,227 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2019-11-07 00:54:27,227 INFO L78 Accepts]: Start accepts. Automaton has 24 states. Word has length 272 [2019-11-07 00:54:27,228 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 00:54:27,256 INFO L225 Difference]: With dead ends: 8259 [2019-11-07 00:54:27,256 INFO L226 Difference]: Without dead ends: 4481 [2019-11-07 00:54:27,270 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=85, Invalid=1037, Unknown=0, NotChecked=0, Total=1122 [2019-11-07 00:54:27,275 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4481 states. [2019-11-07 00:54:27,531 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4481 to 4481. [2019-11-07 00:54:27,532 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4481 states. [2019-11-07 00:54:27,551 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4481 states to 4481 states and 6163 transitions. [2019-11-07 00:54:27,553 INFO L78 Accepts]: Start accepts. Automaton has 4481 states and 6163 transitions. Word has length 272 [2019-11-07 00:54:27,555 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 00:54:27,555 INFO L462 AbstractCegarLoop]: Abstraction has 4481 states and 6163 transitions. [2019-11-07 00:54:27,555 INFO L463 AbstractCegarLoop]: Interpolant automaton has 24 states. [2019-11-07 00:54:27,555 INFO L276 IsEmpty]: Start isEmpty. Operand 4481 states and 6163 transitions. [2019-11-07 00:54:27,561 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 277 [2019-11-07 00:54:27,561 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 00:54:27,562 INFO L410 BasicCegarLoop]: trace histogram [8, 8, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-07 00:54:27,562 INFO L410 AbstractCegarLoop]: === Iteration 10 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 00:54:27,562 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 00:54:27,563 INFO L82 PathProgramCache]: Analyzing trace with hash -948496045, now seen corresponding path program 1 times [2019-11-07 00:54:27,563 INFO L161 FreeRefinementEngine]: Executing refinement strategy TAIPAN [2019-11-07 00:54:27,563 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1404267534] [2019-11-07 00:54:27,563 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 00:54:27,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 00:54:27,753 INFO L134 CoverageAnalysis]: Checked inductivity of 122 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 122 trivial. 0 not checked. [2019-11-07 00:54:27,753 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1404267534] [2019-11-07 00:54:27,754 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 00:54:27,754 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-07 00:54:27,754 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [397870895] [2019-11-07 00:54:27,755 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-07 00:54:27,756 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-11-07 00:54:27,756 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-07 00:54:27,756 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-07 00:54:27,756 INFO L87 Difference]: Start difference. First operand 4481 states and 6163 transitions. Second operand 3 states. [2019-11-07 00:54:27,975 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 00:54:27,976 INFO L93 Difference]: Finished difference Result 12756 states and 18477 transitions. [2019-11-07 00:54:27,976 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-07 00:54:27,976 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 276 [2019-11-07 00:54:27,977 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 00:54:28,027 INFO L225 Difference]: With dead ends: 12756 [2019-11-07 00:54:28,027 INFO L226 Difference]: Without dead ends: 8321 [2019-11-07 00:54:28,048 INFO L630 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 [2019-11-07 00:54:28,059 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8321 states. [2019-11-07 00:54:28,388 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8321 to 8309. [2019-11-07 00:54:28,389 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8309 states. [2019-11-07 00:54:28,538 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8309 states to 8309 states and 11728 transitions. [2019-11-07 00:54:28,540 INFO L78 Accepts]: Start accepts. Automaton has 8309 states and 11728 transitions. Word has length 276 [2019-11-07 00:54:28,540 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 00:54:28,540 INFO L462 AbstractCegarLoop]: Abstraction has 8309 states and 11728 transitions. [2019-11-07 00:54:28,540 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-07 00:54:28,540 INFO L276 IsEmpty]: Start isEmpty. Operand 8309 states and 11728 transitions. [2019-11-07 00:54:28,549 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 273 [2019-11-07 00:54:28,549 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 00:54:28,550 INFO L410 BasicCegarLoop]: trace histogram [8, 8, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-07 00:54:28,550 INFO L410 AbstractCegarLoop]: === Iteration 11 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 00:54:28,550 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 00:54:28,550 INFO L82 PathProgramCache]: Analyzing trace with hash 1353980626, now seen corresponding path program 1 times [2019-11-07 00:54:28,551 INFO L161 FreeRefinementEngine]: Executing refinement strategy TAIPAN [2019-11-07 00:54:28,551 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1581684646] [2019-11-07 00:54:28,551 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 00:54:28,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 00:54:28,759 INFO L134 CoverageAnalysis]: Checked inductivity of 118 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 118 trivial. 0 not checked. [2019-11-07 00:54:28,759 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1581684646] [2019-11-07 00:54:28,760 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 00:54:28,760 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-11-07 00:54:28,760 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1929985714] [2019-11-07 00:54:28,761 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-11-07 00:54:28,761 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-11-07 00:54:28,761 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-11-07 00:54:28,761 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-11-07 00:54:28,762 INFO L87 Difference]: Start difference. First operand 8309 states and 11728 transitions. Second operand 6 states. [2019-11-07 00:54:29,848 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 00:54:29,848 INFO L93 Difference]: Finished difference Result 24174 states and 35225 transitions. [2019-11-07 00:54:29,848 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-11-07 00:54:29,849 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 272 [2019-11-07 00:54:29,849 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 00:54:29,934 INFO L225 Difference]: With dead ends: 24174 [2019-11-07 00:54:29,934 INFO L226 Difference]: Without dead ends: 16700 [2019-11-07 00:54:29,968 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2019-11-07 00:54:29,990 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16700 states. [2019-11-07 00:54:31,295 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16700 to 16571. [2019-11-07 00:54:31,295 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16571 states. [2019-11-07 00:54:31,355 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16571 states to 16571 states and 23687 transitions. [2019-11-07 00:54:31,358 INFO L78 Accepts]: Start accepts. Automaton has 16571 states and 23687 transitions. Word has length 272 [2019-11-07 00:54:31,359 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 00:54:31,359 INFO L462 AbstractCegarLoop]: Abstraction has 16571 states and 23687 transitions. [2019-11-07 00:54:31,359 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-11-07 00:54:31,359 INFO L276 IsEmpty]: Start isEmpty. Operand 16571 states and 23687 transitions. [2019-11-07 00:54:31,375 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 274 [2019-11-07 00:54:31,376 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 00:54:31,376 INFO L410 BasicCegarLoop]: trace histogram [8, 8, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-07 00:54:31,376 INFO L410 AbstractCegarLoop]: === Iteration 12 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 00:54:31,377 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 00:54:31,377 INFO L82 PathProgramCache]: Analyzing trace with hash -684946487, now seen corresponding path program 1 times [2019-11-07 00:54:31,377 INFO L161 FreeRefinementEngine]: Executing refinement strategy TAIPAN [2019-11-07 00:54:31,377 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1009048957] [2019-11-07 00:54:31,378 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 00:54:31,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 00:54:31,662 INFO L134 CoverageAnalysis]: Checked inductivity of 118 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 118 trivial. 0 not checked. [2019-11-07 00:54:31,662 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1009048957] [2019-11-07 00:54:31,663 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 00:54:31,663 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2019-11-07 00:54:31,663 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1064193784] [2019-11-07 00:54:31,663 INFO L442 AbstractCegarLoop]: Interpolant automaton has 15 states [2019-11-07 00:54:31,664 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-11-07 00:54:31,664 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2019-11-07 00:54:31,664 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=183, Unknown=0, NotChecked=0, Total=210 [2019-11-07 00:54:31,664 INFO L87 Difference]: Start difference. First operand 16571 states and 23687 transitions. Second operand 15 states. [2019-11-07 00:54:32,577 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 00:54:32,577 INFO L93 Difference]: Finished difference Result 23380 states and 33019 transitions. [2019-11-07 00:54:32,577 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2019-11-07 00:54:32,577 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 273 [2019-11-07 00:54:32,578 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 00:54:32,648 INFO L225 Difference]: With dead ends: 23380 [2019-11-07 00:54:32,648 INFO L226 Difference]: Without dead ends: 16679 [2019-11-07 00:54:32,673 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 60 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=87, Invalid=615, Unknown=0, NotChecked=0, Total=702 [2019-11-07 00:54:32,695 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16679 states. [2019-11-07 00:54:33,270 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16679 to 16577. [2019-11-07 00:54:33,270 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16577 states. [2019-11-07 00:54:33,323 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16577 states to 16577 states and 23699 transitions. [2019-11-07 00:54:33,327 INFO L78 Accepts]: Start accepts. Automaton has 16577 states and 23699 transitions. Word has length 273 [2019-11-07 00:54:33,327 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 00:54:33,327 INFO L462 AbstractCegarLoop]: Abstraction has 16577 states and 23699 transitions. [2019-11-07 00:54:33,327 INFO L463 AbstractCegarLoop]: Interpolant automaton has 15 states. [2019-11-07 00:54:33,328 INFO L276 IsEmpty]: Start isEmpty. Operand 16577 states and 23699 transitions. [2019-11-07 00:54:33,337 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 274 [2019-11-07 00:54:33,338 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 00:54:33,338 INFO L410 BasicCegarLoop]: trace histogram [8, 8, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-07 00:54:33,338 INFO L410 AbstractCegarLoop]: === Iteration 13 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 00:54:33,338 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 00:54:33,339 INFO L82 PathProgramCache]: Analyzing trace with hash -98170368, now seen corresponding path program 1 times [2019-11-07 00:54:33,339 INFO L161 FreeRefinementEngine]: Executing refinement strategy TAIPAN [2019-11-07 00:54:33,339 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1600558456] [2019-11-07 00:54:33,339 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 00:54:33,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 00:54:33,736 INFO L134 CoverageAnalysis]: Checked inductivity of 118 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 118 trivial. 0 not checked. [2019-11-07 00:54:33,737 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1600558456] [2019-11-07 00:54:33,737 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 00:54:33,738 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-11-07 00:54:33,738 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1660183267] [2019-11-07 00:54:33,739 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-07 00:54:33,739 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-11-07 00:54:33,740 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-07 00:54:33,740 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-07 00:54:33,740 INFO L87 Difference]: Start difference. First operand 16577 states and 23699 transitions. Second operand 5 states.