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_spec3_product23.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-13a467a-m [2019-10-15 01:14:29,419 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-15 01:14:29,422 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-15 01:14:29,436 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-15 01:14:29,436 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-15 01:14:29,438 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-15 01:14:29,439 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-15 01:14:29,441 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-15 01:14:29,443 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-15 01:14:29,444 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-15 01:14:29,445 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-15 01:14:29,446 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-15 01:14:29,447 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-15 01:14:29,448 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-15 01:14:29,449 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-15 01:14:29,450 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-15 01:14:29,451 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-15 01:14:29,452 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-15 01:14:29,454 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-15 01:14:29,456 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-15 01:14:29,457 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-15 01:14:29,459 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-15 01:14:29,460 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-15 01:14:29,461 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-15 01:14:29,463 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-15 01:14:29,463 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-15 01:14:29,464 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-15 01:14:29,465 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-15 01:14:29,465 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-15 01:14:29,466 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-15 01:14:29,466 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-15 01:14:29,467 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-15 01:14:29,468 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-15 01:14:29,469 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-15 01:14:29,470 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-15 01:14:29,470 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-15 01:14:29,471 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-15 01:14:29,471 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-15 01:14:29,471 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-15 01:14:29,472 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-15 01:14:29,473 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-15 01:14:29,474 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 [2019-10-15 01:14:29,488 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-15 01:14:29,489 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-15 01:14:29,490 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-15 01:14:29,490 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-15 01:14:29,491 INFO L138 SettingsManager]: * Use SBE=true [2019-10-15 01:14:29,491 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-15 01:14:29,491 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-15 01:14:29,491 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-15 01:14:29,491 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-15 01:14:29,492 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-15 01:14:29,492 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-15 01:14:29,492 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-15 01:14:29,492 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-15 01:14:29,492 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-15 01:14:29,493 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-15 01:14:29,493 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-15 01:14:29,493 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-15 01:14:29,493 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-15 01:14:29,494 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-15 01:14:29,494 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-15 01:14:29,494 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-15 01:14:29,494 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-15 01:14:29,495 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-15 01:14:29,495 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-15 01:14:29,495 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-15 01:14:29,495 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-15 01:14:29,495 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-15 01:14:29,496 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-15 01:14:29,496 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 [2019-10-15 01:14:29,840 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-15 01:14:29,863 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-15 01:14:29,866 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-15 01:14:29,867 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-15 01:14:29,867 INFO L275 PluginConnector]: CDTParser initialized [2019-10-15 01:14:29,868 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/email_spec3_product23.cil.c [2019-10-15 01:14:29,934 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8ed98fb00/b8637addcb7e4264a683841061c4e964/FLAG2786c1305 [2019-10-15 01:14:30,563 INFO L306 CDTParser]: Found 1 translation units. [2019-10-15 01:14:30,564 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/email_spec3_product23.cil.c [2019-10-15 01:14:30,587 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8ed98fb00/b8637addcb7e4264a683841061c4e964/FLAG2786c1305 [2019-10-15 01:14:30,756 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8ed98fb00/b8637addcb7e4264a683841061c4e964 [2019-10-15 01:14:30,765 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-15 01:14:30,767 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-15 01:14:30,768 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-15 01:14:30,769 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-15 01:14:30,772 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-15 01:14:30,773 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 01:14:30" (1/1) ... [2019-10-15 01:14:30,777 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6377ca13 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:14:30, skipping insertion in model container [2019-10-15 01:14:30,777 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 01:14:30" (1/1) ... [2019-10-15 01:14:30,785 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-15 01:14:30,875 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-15 01:14:31,689 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-15 01:14:31,715 INFO L188 MainTranslator]: Completed pre-run [2019-10-15 01:14:31,894 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-15 01:14:32,032 INFO L192 MainTranslator]: Completed translation [2019-10-15 01:14:32,033 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:14:32 WrapperNode [2019-10-15 01:14:32,033 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-15 01:14:32,034 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-15 01:14:32,034 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-15 01:14:32,034 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-15 01:14:32,050 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:14:32" (1/1) ... [2019-10-15 01:14:32,051 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:14:32" (1/1) ... [2019-10-15 01:14:32,082 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:14:32" (1/1) ... [2019-10-15 01:14:32,083 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:14:32" (1/1) ... [2019-10-15 01:14:32,166 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:14:32" (1/1) ... [2019-10-15 01:14:32,202 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:14:32" (1/1) ... [2019-10-15 01:14:32,215 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:14:32" (1/1) ... [2019-10-15 01:14:32,255 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-15 01:14:32,255 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-15 01:14:32,256 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-15 01:14:32,256 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-15 01:14:32,257 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:14:32" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-15 01:14:32,334 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-15 01:14:32,335 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-15 01:14:32,335 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-10-15 01:14:32,335 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob__wrappee__Base [2019-10-15 01:14:32,336 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob [2019-10-15 01:14:32,336 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh__wrappee__Base [2019-10-15 01:14:32,336 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh [2019-10-15 01:14:32,336 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck__wrappee__Base [2019-10-15 01:14:32,337 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck [2019-10-15 01:14:32,337 INFO L138 BoogieDeclarations]: Found implementation of procedure bobToRjh [2019-10-15 01:14:32,337 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhToBob [2019-10-15 01:14:32,337 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-10-15 01:14:32,337 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-15 01:14:32,338 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAdd [2019-10-15 01:14:32,338 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAdd [2019-10-15 01:14:32,338 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAddChuck [2019-10-15 01:14:32,338 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAddChuck [2019-10-15 01:14:32,339 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2019-10-15 01:14:32,339 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAddRjh [2019-10-15 01:14:32,339 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhDeletePrivateKey [2019-10-15 01:14:32,339 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyChange [2019-10-15 01:14:32,340 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyChange [2019-10-15 01:14:32,340 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhSetAutoRespond [2019-10-15 01:14:32,340 INFO L138 BoogieDeclarations]: Found implementation of procedure bobSetAddressBook [2019-10-15 01:14:32,341 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-10-15 01:14:32,341 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-10-15 01:14:32,341 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-10-15 01:14:32,341 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-10-15 01:14:32,341 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-10-15 01:14:32,342 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-10-15 01:14:32,342 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-10-15 01:14:32,342 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-10-15 01:14:32,342 INFO L138 BoogieDeclarations]: Found implementation of procedure initEmail [2019-10-15 01:14:32,342 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailId [2019-10-15 01:14:32,342 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailId [2019-10-15 01:14:32,343 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2019-10-15 01:14:32,343 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2019-10-15 01:14:32,343 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2019-10-15 01:14:32,343 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2019-10-15 01:14:32,343 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSubject [2019-10-15 01:14:32,344 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSubject [2019-10-15 01:14:32,344 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailBody [2019-10-15 01:14:32,344 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailBody [2019-10-15 01:14:32,344 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2019-10-15 01:14:32,344 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2019-10-15 01:14:32,344 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2019-10-15 01:14:32,345 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2019-10-15 01:14:32,345 INFO L138 BoogieDeclarations]: Found implementation of procedure isSigned [2019-10-15 01:14:32,345 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSigned [2019-10-15 01:14:32,345 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSignKey [2019-10-15 01:14:32,345 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSignKey [2019-10-15 01:14:32,346 INFO L138 BoogieDeclarations]: Found implementation of procedure isVerified [2019-10-15 01:14:32,346 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSignatureVerified [2019-10-15 01:14:32,346 INFO L138 BoogieDeclarations]: Found implementation of procedure prompt [2019-10-15 01:14:32,346 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-10-15 01:14:32,346 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-10-15 01:14:32,346 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-10-15 01:14:32,347 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-10-15 01:14:32,347 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__AddressBook [2019-10-15 01:14:32,347 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__Sign [2019-10-15 01:14:32,347 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail [2019-10-15 01:14:32,347 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2019-10-15 01:14:32,347 INFO L138 BoogieDeclarations]: Found implementation of procedure cloneEmail [2019-10-15 01:14:32,348 INFO L138 BoogieDeclarations]: Found implementation of procedure createEmail [2019-10-15 01:14:32,348 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__SignVerify_spec__1 [2019-10-15 01:14:32,348 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__SignVerify_spec__2 [2019-10-15 01:14:32,348 INFO L138 BoogieDeclarations]: Found implementation of procedure mail [2019-10-15 01:14:32,348 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__AutoResponder [2019-10-15 01:14:32,349 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__AddressBook [2019-10-15 01:14:32,349 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2019-10-15 01:14:32,349 INFO L138 BoogieDeclarations]: Found implementation of procedure deliver [2019-10-15 01:14:32,349 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Keys [2019-10-15 01:14:32,349 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Sign [2019-10-15 01:14:32,349 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming [2019-10-15 01:14:32,350 INFO L138 BoogieDeclarations]: Found implementation of procedure createClient [2019-10-15 01:14:32,350 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2019-10-15 01:14:32,350 INFO L138 BoogieDeclarations]: Found implementation of procedure queue [2019-10-15 01:14:32,350 INFO L138 BoogieDeclarations]: Found implementation of procedure is_queue_empty [2019-10-15 01:14:32,350 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_client [2019-10-15 01:14:32,350 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_email [2019-10-15 01:14:32,350 INFO L138 BoogieDeclarations]: Found implementation of procedure isKeyPairValid [2019-10-15 01:14:32,351 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2019-10-15 01:14:32,351 INFO L138 BoogieDeclarations]: Found implementation of procedure autoRespond [2019-10-15 01:14:32,351 INFO L138 BoogieDeclarations]: Found implementation of procedure sendToAddressBook [2019-10-15 01:14:32,351 INFO L138 BoogieDeclarations]: Found implementation of procedure sign [2019-10-15 01:14:32,351 INFO L138 BoogieDeclarations]: Found implementation of procedure verify [2019-10-15 01:14:32,351 INFO L138 BoogieDeclarations]: Found implementation of procedure initClient [2019-10-15 01:14:32,352 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientName [2019-10-15 01:14:32,352 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientName [2019-10-15 01:14:32,352 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientOutbuffer [2019-10-15 01:14:32,352 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientOutbuffer [2019-10-15 01:14:32,353 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookSize [2019-10-15 01:14:32,353 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookSize [2019-10-15 01:14:32,354 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientAddressBookEntry [2019-10-15 01:14:32,354 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAlias [2019-10-15 01:14:32,354 INFO L138 BoogieDeclarations]: Found implementation of procedure findClientAddressBookAlias [2019-10-15 01:14:32,354 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAlias [2019-10-15 01:14:32,354 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAddress [2019-10-15 01:14:32,354 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAddress [2019-10-15 01:14:32,354 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAutoResponse [2019-10-15 01:14:32,355 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAutoResponse [2019-10-15 01:14:32,355 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientPrivateKey [2019-10-15 01:14:32,355 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2019-10-15 01:14:32,355 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringSize [2019-10-15 01:14:32,355 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringSize [2019-10-15 01:14:32,355 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2019-10-15 01:14:32,355 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringUser [2019-10-15 01:14:32,356 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2019-10-15 01:14:32,356 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringPublicKey [2019-10-15 01:14:32,356 INFO L138 BoogieDeclarations]: Found implementation of procedure findPublicKey [2019-10-15 01:14:32,356 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2019-10-15 01:14:32,356 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientForwardReceiver [2019-10-15 01:14:32,356 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientForwardReceiver [2019-10-15 01:14:32,356 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientId [2019-10-15 01:14:32,357 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2019-10-15 01:14:32,357 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-15 01:14:32,357 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-15 01:14:32,357 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-10-15 01:14:32,358 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2019-10-15 01:14:32,358 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookSize [2019-10-15 01:14:32,358 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAlias [2019-10-15 01:14:32,358 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAddress [2019-10-15 01:14:32,359 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAutoResponse [2019-10-15 01:14:32,359 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2019-10-15 01:14:32,360 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2019-10-15 01:14:32,360 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringUser [2019-10-15 01:14:32,360 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2019-10-15 01:14:32,360 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringPublicKey [2019-10-15 01:14:32,361 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2019-10-15 01:14:32,361 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2019-10-15 01:14:32,361 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-10-15 01:14:32,361 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-10-15 01:14:32,362 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-10-15 01:14:32,362 INFO L130 BoogieDeclarations]: Found specification of procedure is_queue_empty [2019-10-15 01:14:32,362 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_client [2019-10-15 01:14:32,362 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_email [2019-10-15 01:14:32,363 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2019-10-15 01:14:32,366 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2019-10-15 01:14:32,366 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2019-10-15 01:14:32,366 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob [2019-10-15 01:14:32,366 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh [2019-10-15 01:14:32,367 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck [2019-10-15 01:14:32,367 INFO L130 BoogieDeclarations]: Found specification of procedure bobToRjh [2019-10-15 01:14:32,367 INFO L130 BoogieDeclarations]: Found specification of procedure rjhToBob [2019-10-15 01:14:32,367 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-10-15 01:14:32,367 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-10-15 01:14:32,368 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-15 01:14:32,368 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAdd [2019-10-15 01:14:32,368 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAddChuck [2019-10-15 01:14:32,368 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAdd [2019-10-15 01:14:32,368 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAddChuck [2019-10-15 01:14:32,368 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2019-10-15 01:14:32,369 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyChange [2019-10-15 01:14:32,369 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyChange [2019-10-15 01:14:32,369 INFO L130 BoogieDeclarations]: Found specification of procedure rjhDeletePrivateKey [2019-10-15 01:14:32,369 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAddRjh [2019-10-15 01:14:32,369 INFO L130 BoogieDeclarations]: Found specification of procedure rjhSetAutoRespond [2019-10-15 01:14:32,369 INFO L130 BoogieDeclarations]: Found specification of procedure bobSetAddressBook [2019-10-15 01:14:32,369 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob__wrappee__Base [2019-10-15 01:14:32,370 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh__wrappee__Base [2019-10-15 01:14:32,370 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck__wrappee__Base [2019-10-15 01:14:32,370 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-15 01:14:32,370 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-10-15 01:14:32,370 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-10-15 01:14:32,370 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-15 01:14:32,370 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-10-15 01:14:32,371 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-15 01:14:32,371 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-15 01:14:32,371 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-15 01:14:32,371 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-15 01:14:32,371 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-10-15 01:14:32,371 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-15 01:14:32,371 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-10-15 01:14:32,372 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-10-15 01:14:32,372 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-15 01:14:32,372 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-10-15 01:14:32,372 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-10-15 01:14:32,372 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-10-15 01:14:32,372 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-10-15 01:14:32,372 INFO L130 BoogieDeclarations]: Found specification of procedure initEmail [2019-10-15 01:14:32,372 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailId [2019-10-15 01:14:32,373 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailId [2019-10-15 01:14:32,373 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2019-10-15 01:14:32,373 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2019-10-15 01:14:32,373 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2019-10-15 01:14:32,373 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2019-10-15 01:14:32,373 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSubject [2019-10-15 01:14:32,373 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSubject [2019-10-15 01:14:32,374 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailBody [2019-10-15 01:14:32,374 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailBody [2019-10-15 01:14:32,374 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2019-10-15 01:14:32,374 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2019-10-15 01:14:32,374 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2019-10-15 01:14:32,374 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2019-10-15 01:14:32,374 INFO L130 BoogieDeclarations]: Found specification of procedure isSigned [2019-10-15 01:14:32,375 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSigned [2019-10-15 01:14:32,375 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSignKey [2019-10-15 01:14:32,375 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSignKey [2019-10-15 01:14:32,375 INFO L130 BoogieDeclarations]: Found specification of procedure isVerified [2019-10-15 01:14:32,375 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSignatureVerified [2019-10-15 01:14:32,375 INFO L130 BoogieDeclarations]: Found specification of procedure prompt [2019-10-15 01:14:32,375 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-10-15 01:14:32,376 INFO L130 BoogieDeclarations]: Found specification of procedure printMail [2019-10-15 01:14:32,376 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2019-10-15 01:14:32,376 INFO L130 BoogieDeclarations]: Found specification of procedure createEmail [2019-10-15 01:14:32,376 INFO L130 BoogieDeclarations]: Found specification of procedure cloneEmail [2019-10-15 01:14:32,376 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__AddressBook [2019-10-15 01:14:32,376 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__Sign [2019-10-15 01:14:32,376 INFO L130 BoogieDeclarations]: Found specification of procedure findPublicKey [2019-10-15 01:14:32,376 INFO L130 BoogieDeclarations]: Found specification of procedure isKeyPairValid [2019-10-15 01:14:32,377 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__SignVerify_spec__1 [2019-10-15 01:14:32,377 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__SignVerify_spec__2 [2019-10-15 01:14:32,377 INFO L130 BoogieDeclarations]: Found specification of procedure initClient [2019-10-15 01:14:32,377 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookSize [2019-10-15 01:14:32,377 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAddress [2019-10-15 01:14:32,377 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAutoResponse [2019-10-15 01:14:32,378 INFO L130 BoogieDeclarations]: Found specification of procedure getClientPrivateKey [2019-10-15 01:14:32,378 INFO L130 BoogieDeclarations]: Found specification of procedure getClientId [2019-10-15 01:14:32,378 INFO L130 BoogieDeclarations]: Found specification of procedure queue [2019-10-15 01:14:32,378 INFO L130 BoogieDeclarations]: Found specification of procedure mail [2019-10-15 01:14:32,378 INFO L130 BoogieDeclarations]: Found specification of procedure deliver [2019-10-15 01:14:32,378 INFO L130 BoogieDeclarations]: Found specification of procedure incoming [2019-10-15 01:14:32,378 INFO L130 BoogieDeclarations]: Found specification of procedure createClient [2019-10-15 01:14:32,379 INFO L130 BoogieDeclarations]: Found specification of procedure autoRespond [2019-10-15 01:14:32,379 INFO L130 BoogieDeclarations]: Found specification of procedure sendToAddressBook [2019-10-15 01:14:32,379 INFO L130 BoogieDeclarations]: Found specification of procedure sign [2019-10-15 01:14:32,379 INFO L130 BoogieDeclarations]: Found specification of procedure verify [2019-10-15 01:14:32,379 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__AutoResponder [2019-10-15 01:14:32,379 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__AddressBook [2019-10-15 01:14:32,379 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Keys [2019-10-15 01:14:32,380 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Sign [2019-10-15 01:14:32,380 INFO L130 BoogieDeclarations]: Found specification of procedure getClientName [2019-10-15 01:14:32,380 INFO L130 BoogieDeclarations]: Found specification of procedure setClientName [2019-10-15 01:14:32,380 INFO L130 BoogieDeclarations]: Found specification of procedure getClientOutbuffer [2019-10-15 01:14:32,380 INFO L130 BoogieDeclarations]: Found specification of procedure setClientOutbuffer [2019-10-15 01:14:32,380 INFO L130 BoogieDeclarations]: Found specification of procedure createClientAddressBookEntry [2019-10-15 01:14:32,380 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAlias [2019-10-15 01:14:32,381 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringSize [2019-10-15 01:14:32,381 INFO L130 BoogieDeclarations]: Found specification of procedure getClientForwardReceiver [2019-10-15 01:14:32,381 INFO L130 BoogieDeclarations]: Found specification of procedure setClientForwardReceiver [2019-10-15 01:14:32,381 INFO L130 BoogieDeclarations]: Found specification of procedure findClientAddressBookAlias [2019-10-15 01:14:32,381 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringSize [2019-10-15 01:14:32,381 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-15 01:14:32,381 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-15 01:14:32,381 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-15 01:14:34,677 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-15 01:14:34,677 INFO L284 CfgBuilder]: Removed 4 assume(true) statements. [2019-10-15 01:14:34,679 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 01:14:34 BoogieIcfgContainer [2019-10-15 01:14:34,679 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-15 01:14:34,681 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-15 01:14:34,682 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-15 01:14:34,685 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-15 01:14:34,685 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.10 01:14:30" (1/3) ... [2019-10-15 01:14:34,686 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5d271ea5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 01:14:34, skipping insertion in model container [2019-10-15 01:14:34,686 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:14:32" (2/3) ... [2019-10-15 01:14:34,687 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5d271ea5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 01:14:34, skipping insertion in model container [2019-10-15 01:14:34,687 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 01:14:34" (3/3) ... [2019-10-15 01:14:34,689 INFO L109 eAbstractionObserver]: Analyzing ICFG email_spec3_product23.cil.c [2019-10-15 01:14:34,700 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-15 01:14:34,712 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-15 01:14:34,725 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-15 01:14:34,773 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-15 01:14:34,774 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-15 01:14:34,775 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-15 01:14:34,779 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-15 01:14:34,779 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-15 01:14:34,779 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-15 01:14:34,779 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-15 01:14:34,779 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-15 01:14:34,820 INFO L276 IsEmpty]: Start isEmpty. Operand 587 states. [2019-10-15 01:14:34,847 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 180 [2019-10-15 01:14:34,847 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:14:34,849 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 01:14:34,851 INFO L410 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:14:34,857 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:14:34,857 INFO L82 PathProgramCache]: Analyzing trace with hash -1102643353, now seen corresponding path program 1 times [2019-10-15 01:14:34,868 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:14:34,869 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1934443302] [2019-10-15 01:14:34,869 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:14:34,869 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:14:34,869 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:14:35,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:14:35,548 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2019-10-15 01:14:35,549 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1934443302] [2019-10-15 01:14:35,550 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:14:35,550 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-10-15 01:14:35,550 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [862763527] [2019-10-15 01:14:35,556 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-15 01:14:35,558 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:14:35,574 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-15 01:14:35,575 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-15 01:14:35,577 INFO L87 Difference]: Start difference. First operand 587 states. Second operand 2 states. [2019-10-15 01:14:35,696 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:14:35,697 INFO L93 Difference]: Finished difference Result 816 states and 1110 transitions. [2019-10-15 01:14:35,697 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-15 01:14:35,699 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 179 [2019-10-15 01:14:35,700 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:14:35,737 INFO L225 Difference]: With dead ends: 816 [2019-10-15 01:14:35,737 INFO L226 Difference]: Without dead ends: 536 [2019-10-15 01:14:35,750 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-15 01:14:35,773 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 536 states. [2019-10-15 01:14:35,884 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 536 to 536. [2019-10-15 01:14:35,885 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 536 states. [2019-10-15 01:14:35,895 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 536 states to 536 states and 732 transitions. [2019-10-15 01:14:35,897 INFO L78 Accepts]: Start accepts. Automaton has 536 states and 732 transitions. Word has length 179 [2019-10-15 01:14:35,901 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:14:35,901 INFO L462 AbstractCegarLoop]: Abstraction has 536 states and 732 transitions. [2019-10-15 01:14:35,901 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-15 01:14:35,902 INFO L276 IsEmpty]: Start isEmpty. Operand 536 states and 732 transitions. [2019-10-15 01:14:35,908 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 181 [2019-10-15 01:14:35,908 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:14:35,909 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 01:14:35,909 INFO L410 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:14:35,910 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:14:35,910 INFO L82 PathProgramCache]: Analyzing trace with hash -2131097352, now seen corresponding path program 1 times [2019-10-15 01:14:35,910 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:14:35,910 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [277945224] [2019-10-15 01:14:35,911 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:14:35,911 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:14:35,911 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:14:36,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:14:36,256 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2019-10-15 01:14:36,256 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [277945224] [2019-10-15 01:14:36,257 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:14:36,257 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-15 01:14:36,257 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1866167918] [2019-10-15 01:14:36,262 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-15 01:14:36,263 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:14:36,263 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-15 01:14:36,263 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 01:14:36,264 INFO L87 Difference]: Start difference. First operand 536 states and 732 transitions. Second operand 3 states. [2019-10-15 01:14:36,325 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:14:36,326 INFO L93 Difference]: Finished difference Result 799 states and 1072 transitions. [2019-10-15 01:14:36,330 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-15 01:14:36,330 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 180 [2019-10-15 01:14:36,331 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:14:36,338 INFO L225 Difference]: With dead ends: 799 [2019-10-15 01:14:36,338 INFO L226 Difference]: Without dead ends: 539 [2019-10-15 01:14:36,341 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 01:14:36,344 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 539 states. [2019-10-15 01:14:36,379 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 539 to 538. [2019-10-15 01:14:36,380 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 538 states. [2019-10-15 01:14:36,386 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 538 states to 538 states and 734 transitions. [2019-10-15 01:14:36,387 INFO L78 Accepts]: Start accepts. Automaton has 538 states and 734 transitions. Word has length 180 [2019-10-15 01:14:36,388 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:14:36,388 INFO L462 AbstractCegarLoop]: Abstraction has 538 states and 734 transitions. [2019-10-15 01:14:36,389 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-15 01:14:36,389 INFO L276 IsEmpty]: Start isEmpty. Operand 538 states and 734 transitions. [2019-10-15 01:14:36,400 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 191 [2019-10-15 01:14:36,401 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:14:36,401 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 01:14:36,402 INFO L410 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:14:36,402 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:14:36,402 INFO L82 PathProgramCache]: Analyzing trace with hash 1330495496, now seen corresponding path program 1 times [2019-10-15 01:14:36,403 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:14:36,403 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [528797584] [2019-10-15 01:14:36,403 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:14:36,404 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:14:36,404 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:14:36,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:14:36,731 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2019-10-15 01:14:36,731 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [528797584] [2019-10-15 01:14:36,732 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:14:36,732 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-15 01:14:36,732 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [833331395] [2019-10-15 01:14:36,733 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-15 01:14:36,735 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:14:36,736 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-15 01:14:36,736 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 01:14:36,736 INFO L87 Difference]: Start difference. First operand 538 states and 734 transitions. Second operand 3 states. [2019-10-15 01:14:36,794 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:14:36,794 INFO L93 Difference]: Finished difference Result 1054 states and 1469 transitions. [2019-10-15 01:14:36,795 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-15 01:14:36,795 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 190 [2019-10-15 01:14:36,797 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:14:36,803 INFO L225 Difference]: With dead ends: 1054 [2019-10-15 01:14:36,803 INFO L226 Difference]: Without dead ends: 581 [2019-10-15 01:14:36,806 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 01:14:36,807 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 581 states. [2019-10-15 01:14:36,839 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 581 to 580. [2019-10-15 01:14:36,839 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 580 states. [2019-10-15 01:14:36,843 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 580 states to 580 states and 806 transitions. [2019-10-15 01:14:36,844 INFO L78 Accepts]: Start accepts. Automaton has 580 states and 806 transitions. Word has length 190 [2019-10-15 01:14:36,845 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:14:36,845 INFO L462 AbstractCegarLoop]: Abstraction has 580 states and 806 transitions. [2019-10-15 01:14:36,845 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-15 01:14:36,845 INFO L276 IsEmpty]: Start isEmpty. Operand 580 states and 806 transitions. [2019-10-15 01:14:36,852 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 192 [2019-10-15 01:14:36,852 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:14:36,852 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 01:14:36,853 INFO L410 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:14:36,853 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:14:36,853 INFO L82 PathProgramCache]: Analyzing trace with hash -1845814731, now seen corresponding path program 1 times [2019-10-15 01:14:36,854 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:14:36,854 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1859012382] [2019-10-15 01:14:36,854 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:14:36,854 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:14:36,854 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:14:36,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:14:37,073 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2019-10-15 01:14:37,073 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1859012382] [2019-10-15 01:14:37,074 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:14:37,074 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-15 01:14:37,074 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [407754824] [2019-10-15 01:14:37,075 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-15 01:14:37,075 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:14:37,075 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-15 01:14:37,075 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 01:14:37,076 INFO L87 Difference]: Start difference. First operand 580 states and 806 transitions. Second operand 3 states. [2019-10-15 01:14:37,108 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:14:37,109 INFO L93 Difference]: Finished difference Result 1177 states and 1680 transitions. [2019-10-15 01:14:37,109 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-15 01:14:37,109 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 191 [2019-10-15 01:14:37,110 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:14:37,114 INFO L225 Difference]: With dead ends: 1177 [2019-10-15 01:14:37,115 INFO L226 Difference]: Without dead ends: 662 [2019-10-15 01:14:37,117 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 01:14:37,119 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 662 states. [2019-10-15 01:14:37,138 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 662 to 661. [2019-10-15 01:14:37,138 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 661 states. [2019-10-15 01:14:37,142 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 661 states to 661 states and 944 transitions. [2019-10-15 01:14:37,142 INFO L78 Accepts]: Start accepts. Automaton has 661 states and 944 transitions. Word has length 191 [2019-10-15 01:14:37,143 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:14:37,143 INFO L462 AbstractCegarLoop]: Abstraction has 661 states and 944 transitions. [2019-10-15 01:14:37,143 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-15 01:14:37,143 INFO L276 IsEmpty]: Start isEmpty. Operand 661 states and 944 transitions. [2019-10-15 01:14:37,147 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 193 [2019-10-15 01:14:37,148 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:14:37,148 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 01:14:37,148 INFO L410 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:14:37,148 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:14:37,149 INFO L82 PathProgramCache]: Analyzing trace with hash 436751368, now seen corresponding path program 1 times [2019-10-15 01:14:37,149 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:14:37,149 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [461093082] [2019-10-15 01:14:37,149 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:14:37,149 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:14:37,150 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:14:37,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:14:37,323 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2019-10-15 01:14:37,324 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [461093082] [2019-10-15 01:14:37,324 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:14:37,324 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-15 01:14:37,324 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1388526821] [2019-10-15 01:14:37,325 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-15 01:14:37,325 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:14:37,326 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-15 01:14:37,326 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 01:14:37,326 INFO L87 Difference]: Start difference. First operand 661 states and 944 transitions. Second operand 3 states. [2019-10-15 01:14:37,365 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:14:37,365 INFO L93 Difference]: Finished difference Result 1414 states and 2084 transitions. [2019-10-15 01:14:37,366 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-15 01:14:37,366 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 192 [2019-10-15 01:14:37,366 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:14:37,372 INFO L225 Difference]: With dead ends: 1414 [2019-10-15 01:14:37,373 INFO L226 Difference]: Without dead ends: 818 [2019-10-15 01:14:37,375 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 01:14:37,378 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 818 states. [2019-10-15 01:14:37,404 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 818 to 817. [2019-10-15 01:14:37,405 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 817 states. [2019-10-15 01:14:37,409 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 817 states to 817 states and 1208 transitions. [2019-10-15 01:14:37,410 INFO L78 Accepts]: Start accepts. Automaton has 817 states and 1208 transitions. Word has length 192 [2019-10-15 01:14:37,410 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:14:37,411 INFO L462 AbstractCegarLoop]: Abstraction has 817 states and 1208 transitions. [2019-10-15 01:14:37,411 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-15 01:14:37,411 INFO L276 IsEmpty]: Start isEmpty. Operand 817 states and 1208 transitions. [2019-10-15 01:14:37,416 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 194 [2019-10-15 01:14:37,417 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:14:37,417 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 01:14:37,417 INFO L410 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:14:37,417 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:14:37,418 INFO L82 PathProgramCache]: Analyzing trace with hash 1985987125, now seen corresponding path program 1 times [2019-10-15 01:14:37,418 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:14:37,418 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1863167595] [2019-10-15 01:14:37,418 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:14:37,419 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:14:37,419 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:14:37,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:14:37,628 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2019-10-15 01:14:37,629 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1863167595] [2019-10-15 01:14:37,629 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:14:37,629 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-15 01:14:37,629 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1604143847] [2019-10-15 01:14:37,630 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-15 01:14:37,630 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:14:37,630 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-15 01:14:37,631 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 01:14:37,631 INFO L87 Difference]: Start difference. First operand 817 states and 1208 transitions. Second operand 3 states. [2019-10-15 01:14:37,676 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:14:37,677 INFO L93 Difference]: Finished difference Result 1870 states and 2856 transitions. [2019-10-15 01:14:37,677 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-15 01:14:37,677 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 193 [2019-10-15 01:14:37,678 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:14:37,685 INFO L225 Difference]: With dead ends: 1870 [2019-10-15 01:14:37,685 INFO L226 Difference]: Without dead ends: 1118 [2019-10-15 01:14:37,689 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 01:14:37,691 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1118 states. [2019-10-15 01:14:37,728 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1118 to 1117. [2019-10-15 01:14:37,728 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1117 states. [2019-10-15 01:14:37,735 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1117 states to 1117 states and 1712 transitions. [2019-10-15 01:14:37,735 INFO L78 Accepts]: Start accepts. Automaton has 1117 states and 1712 transitions. Word has length 193 [2019-10-15 01:14:37,736 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:14:37,736 INFO L462 AbstractCegarLoop]: Abstraction has 1117 states and 1712 transitions. [2019-10-15 01:14:37,736 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-15 01:14:37,736 INFO L276 IsEmpty]: Start isEmpty. Operand 1117 states and 1712 transitions. [2019-10-15 01:14:37,743 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 197 [2019-10-15 01:14:37,743 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:14:37,744 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 01:14:37,744 INFO L410 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:14:37,744 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:14:37,744 INFO L82 PathProgramCache]: Analyzing trace with hash -1576978066, now seen corresponding path program 1 times [2019-10-15 01:14:37,745 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:14:37,745 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [359151932] [2019-10-15 01:14:37,745 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:14:37,745 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:14:37,745 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:14:37,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:14:38,037 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2019-10-15 01:14:38,037 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [359151932] [2019-10-15 01:14:38,038 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:14:38,038 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2019-10-15 01:14:38,038 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1913816064] [2019-10-15 01:14:38,039 INFO L442 AbstractCegarLoop]: Interpolant automaton has 12 states [2019-10-15 01:14:38,039 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:14:38,040 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2019-10-15 01:14:38,040 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=106, Unknown=0, NotChecked=0, Total=132 [2019-10-15 01:14:38,040 INFO L87 Difference]: Start difference. First operand 1117 states and 1712 transitions. Second operand 12 states. [2019-10-15 01:14:50,790 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:14:50,790 INFO L93 Difference]: Finished difference Result 3285 states and 4713 transitions. [2019-10-15 01:14:50,790 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2019-10-15 01:14:50,791 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 196 [2019-10-15 01:14:50,791 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:14:50,819 INFO L225 Difference]: With dead ends: 3285 [2019-10-15 01:14:50,819 INFO L226 Difference]: Without dead ends: 3026 [2019-10-15 01:14:50,823 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 539 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=377, Invalid=1515, Unknown=0, NotChecked=0, Total=1892 [2019-10-15 01:14:50,827 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3026 states. [2019-10-15 01:14:51,007 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3026 to 3001. [2019-10-15 01:14:51,007 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3001 states. [2019-10-15 01:14:51,024 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3001 states to 3001 states and 4253 transitions. [2019-10-15 01:14:51,025 INFO L78 Accepts]: Start accepts. Automaton has 3001 states and 4253 transitions. Word has length 196 [2019-10-15 01:14:51,025 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:14:51,025 INFO L462 AbstractCegarLoop]: Abstraction has 3001 states and 4253 transitions. [2019-10-15 01:14:51,025 INFO L463 AbstractCegarLoop]: Interpolant automaton has 12 states. [2019-10-15 01:14:51,026 INFO L276 IsEmpty]: Start isEmpty. Operand 3001 states and 4253 transitions. [2019-10-15 01:14:51,033 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 198 [2019-10-15 01:14:51,033 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:14:51,034 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 01:14:51,034 INFO L410 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:14:51,034 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:14:51,034 INFO L82 PathProgramCache]: Analyzing trace with hash -886808623, now seen corresponding path program 1 times [2019-10-15 01:14:51,035 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:14:51,035 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1405581452] [2019-10-15 01:14:51,035 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:14:51,035 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:14:51,035 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:14:51,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:14:51,457 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2019-10-15 01:14:51,457 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1405581452] [2019-10-15 01:14:51,457 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:14:51,458 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2019-10-15 01:14:51,458 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [572110350] [2019-10-15 01:14:51,459 INFO L442 AbstractCegarLoop]: Interpolant automaton has 18 states [2019-10-15 01:14:51,459 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:14:51,460 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2019-10-15 01:14:51,460 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=273, Unknown=0, NotChecked=0, Total=306 [2019-10-15 01:14:51,460 INFO L87 Difference]: Start difference. First operand 3001 states and 4253 transitions. Second operand 18 states. [2019-10-15 01:14:51,985 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:14:51,985 INFO L93 Difference]: Finished difference Result 4923 states and 6907 transitions. [2019-10-15 01:14:51,986 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2019-10-15 01:14:51,986 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 197 [2019-10-15 01:14:51,989 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:14:52,013 INFO L225 Difference]: With dead ends: 4923 [2019-10-15 01:14:52,013 INFO L226 Difference]: Without dead ends: 2762 [2019-10-15 01:14:52,026 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=61, Invalid=539, Unknown=0, NotChecked=0, Total=600 [2019-10-15 01:14:52,030 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2762 states. [2019-10-15 01:14:52,156 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2762 to 2760. [2019-10-15 01:14:52,157 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2760 states. [2019-10-15 01:14:52,179 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2760 states to 2760 states and 3926 transitions. [2019-10-15 01:14:52,181 INFO L78 Accepts]: Start accepts. Automaton has 2760 states and 3926 transitions. Word has length 197 [2019-10-15 01:14:52,182 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:14:52,182 INFO L462 AbstractCegarLoop]: Abstraction has 2760 states and 3926 transitions. [2019-10-15 01:14:52,182 INFO L463 AbstractCegarLoop]: Interpolant automaton has 18 states. [2019-10-15 01:14:52,183 INFO L276 IsEmpty]: Start isEmpty. Operand 2760 states and 3926 transitions. [2019-10-15 01:14:52,191 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 207 [2019-10-15 01:14:52,191 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:14:52,191 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 01:14:52,192 INFO L410 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:14:52,192 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:14:52,192 INFO L82 PathProgramCache]: Analyzing trace with hash -1141365715, now seen corresponding path program 1 times [2019-10-15 01:14:52,192 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:14:52,193 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1717841734] [2019-10-15 01:14:52,193 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:14:52,193 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:14:52,193 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:14:52,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:14:54,390 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 17 proven. 3 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2019-10-15 01:14:54,391 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1717841734] [2019-10-15 01:14:54,391 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1187064378] [2019-10-15 01:14:54,391 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-15 01:14:54,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:14:54,980 INFO L256 TraceCheckSpWp]: Trace formula consists of 2936 conjuncts, 8 conjunts are in the unsatisfiable core [2019-10-15 01:14:55,001 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-15 01:14:55,528 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2019-10-15 01:14:55,528 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-15 01:14:55,920 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-15 01:14:56,036 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-10-15 01:14:56,193 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-10-15 01:14:56,430 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2019-10-15 01:14:56,431 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2019-10-15 01:14:56,431 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [55, 9] total 67 [2019-10-15 01:14:56,431 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [663154846] [2019-10-15 01:14:56,432 INFO L442 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-10-15 01:14:56,432 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:14:56,432 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-10-15 01:14:56,434 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=174, Invalid=4248, Unknown=0, NotChecked=0, Total=4422 [2019-10-15 01:14:56,434 INFO L87 Difference]: Start difference. First operand 2760 states and 3926 transitions. Second operand 9 states. [2019-10-15 01:14:58,323 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:14:58,324 INFO L93 Difference]: Finished difference Result 5498 states and 7832 transitions. [2019-10-15 01:14:58,324 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2019-10-15 01:14:58,324 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 206 [2019-10-15 01:14:58,325 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:14:58,342 INFO L225 Difference]: With dead ends: 5498 [2019-10-15 01:14:58,342 INFO L226 Difference]: Without dead ends: 2774 [2019-10-15 01:14:58,353 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 475 GetRequests, 400 SyntacticMatches, 7 SemanticMatches, 68 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 242 ImplicationChecksByTransitivity, 2.7s TimeCoverageRelationStatistics Valid=201, Invalid=4629, Unknown=0, NotChecked=0, Total=4830 [2019-10-15 01:14:58,357 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2774 states. [2019-10-15 01:14:58,471 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2774 to 2774. [2019-10-15 01:14:58,471 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2774 states. [2019-10-15 01:14:58,482 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2774 states to 2774 states and 3944 transitions. [2019-10-15 01:14:58,484 INFO L78 Accepts]: Start accepts. Automaton has 2774 states and 3944 transitions. Word has length 206 [2019-10-15 01:14:58,484 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:14:58,484 INFO L462 AbstractCegarLoop]: Abstraction has 2774 states and 3944 transitions. [2019-10-15 01:14:58,484 INFO L463 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-10-15 01:14:58,485 INFO L276 IsEmpty]: Start isEmpty. Operand 2774 states and 3944 transitions. [2019-10-15 01:14:58,492 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 208 [2019-10-15 01:14:58,492 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:14:58,493 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 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] [2019-10-15 01:14:58,701 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-15 01:14:58,702 INFO L410 AbstractCegarLoop]: === Iteration 10 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:14:58,702 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:14:58,703 INFO L82 PathProgramCache]: Analyzing trace with hash 715410806, now seen corresponding path program 1 times [2019-10-15 01:14:58,703 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:14:58,703 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [416866740] [2019-10-15 01:14:58,703 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:14:58,704 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:14:58,704 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:14:58,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:15:00,999 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 17 proven. 3 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2019-10-15 01:15:00,999 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [416866740] [2019-10-15 01:15:01,000 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [6646897] [2019-10-15 01:15:01,000 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-15 01:15:01,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:15:01,627 INFO L256 TraceCheckSpWp]: Trace formula consists of 2937 conjuncts, 6 conjunts are in the unsatisfiable core [2019-10-15 01:15:01,637 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-15 01:15:01,903 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2019-10-15 01:15:01,904 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-15 01:15:02,281 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-10-15 01:15:02,410 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-10-15 01:15:02,472 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2019-10-15 01:15:02,473 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2019-10-15 01:15:02,473 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [53, 7] total 61 [2019-10-15 01:15:02,473 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1853590302] [2019-10-15 01:15:02,474 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-10-15 01:15:02,474 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:15:02,474 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-10-15 01:15:02,475 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=149, Invalid=3511, Unknown=0, NotChecked=0, Total=3660 [2019-10-15 01:15:02,476 INFO L87 Difference]: Start difference. First operand 2774 states and 3944 transitions. Second operand 7 states. [2019-10-15 01:15:04,256 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:15:04,256 INFO L93 Difference]: Finished difference Result 5499 states and 7842 transitions. [2019-10-15 01:15:04,257 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-10-15 01:15:04,257 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 207 [2019-10-15 01:15:04,257 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:15:04,273 INFO L225 Difference]: With dead ends: 5499 [2019-10-15 01:15:04,274 INFO L226 Difference]: Without dead ends: 2776 [2019-10-15 01:15:04,285 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 474 GetRequests, 407 SyntacticMatches, 6 SemanticMatches, 61 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 178 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=167, Invalid=3739, Unknown=0, NotChecked=0, Total=3906 [2019-10-15 01:15:04,289 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2776 states. [2019-10-15 01:15:04,423 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2776 to 2776. [2019-10-15 01:15:04,424 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2776 states. [2019-10-15 01:15:04,436 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2776 states to 2776 states and 3947 transitions. [2019-10-15 01:15:04,437 INFO L78 Accepts]: Start accepts. Automaton has 2776 states and 3947 transitions. Word has length 207 [2019-10-15 01:15:04,438 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:15:04,438 INFO L462 AbstractCegarLoop]: Abstraction has 2776 states and 3947 transitions. [2019-10-15 01:15:04,438 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-10-15 01:15:04,438 INFO L276 IsEmpty]: Start isEmpty. Operand 2776 states and 3947 transitions. [2019-10-15 01:15:04,446 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 209 [2019-10-15 01:15:04,446 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:15:04,447 INFO L380 BasicCegarLoop]: trace histogram [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] [2019-10-15 01:15:04,665 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-15 01:15:04,666 INFO L410 AbstractCegarLoop]: === Iteration 11 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:15:04,666 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:15:04,666 INFO L82 PathProgramCache]: Analyzing trace with hash -1628390198, now seen corresponding path program 1 times [2019-10-15 01:15:04,666 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:15:04,667 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1863136695] [2019-10-15 01:15:04,667 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:15:04,667 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:15:04,667 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:15:04,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat