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_spec7_product31.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-f4eb214f-m [2019-10-13 21:17:51,374 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-13 21:17:51,378 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-13 21:17:51,393 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-13 21:17:51,394 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-13 21:17:51,395 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-13 21:17:51,396 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-13 21:17:51,399 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-13 21:17:51,401 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-13 21:17:51,402 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-13 21:17:51,409 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-13 21:17:51,410 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-13 21:17:51,410 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-13 21:17:51,413 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-13 21:17:51,415 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-13 21:17:51,417 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-13 21:17:51,418 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-13 21:17:51,419 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-13 21:17:51,423 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-13 21:17:51,425 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-13 21:17:51,429 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-13 21:17:51,432 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-13 21:17:51,433 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-13 21:17:51,436 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-13 21:17:51,440 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-13 21:17:51,441 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-13 21:17:51,441 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-13 21:17:51,443 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-13 21:17:51,444 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-13 21:17:51,446 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-13 21:17:51,446 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-13 21:17:51,448 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-13 21:17:51,449 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-13 21:17:51,450 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-13 21:17:51,454 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-13 21:17:51,454 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-13 21:17:51,455 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-13 21:17:51,455 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-13 21:17:51,455 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-13 21:17:51,457 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-13 21:17:51,460 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-13 21:17:51,461 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 [2019-10-13 21:17:51,478 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-13 21:17:51,479 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-13 21:17:51,480 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-13 21:17:51,480 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-13 21:17:51,480 INFO L138 SettingsManager]: * Use SBE=true [2019-10-13 21:17:51,481 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-13 21:17:51,481 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-13 21:17:51,481 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-13 21:17:51,481 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-13 21:17:51,481 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-13 21:17:51,482 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-13 21:17:51,482 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-13 21:17:51,482 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-13 21:17:51,482 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-13 21:17:51,482 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-13 21:17:51,483 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-13 21:17:51,483 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-13 21:17:51,483 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-13 21:17:51,483 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-13 21:17:51,483 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-13 21:17:51,484 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-13 21:17:51,484 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-13 21:17:51,484 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-13 21:17:51,484 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-13 21:17:51,485 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-13 21:17:51,485 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-13 21:17:51,485 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-13 21:17:51,485 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-13 21:17:51,485 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 [2019-10-13 21:17:51,750 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-13 21:17:51,763 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-13 21:17:51,767 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-13 21:17:51,768 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-13 21:17:51,769 INFO L275 PluginConnector]: CDTParser initialized [2019-10-13 21:17:51,770 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/email_spec7_product31.cil.c [2019-10-13 21:17:51,856 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6b7b05108/f5eee3e312b84712892add0eb9f5de2d/FLAGb2c5b9236 [2019-10-13 21:17:52,538 INFO L306 CDTParser]: Found 1 translation units. [2019-10-13 21:17:52,539 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/email_spec7_product31.cil.c [2019-10-13 21:17:52,567 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6b7b05108/f5eee3e312b84712892add0eb9f5de2d/FLAGb2c5b9236 [2019-10-13 21:17:52,689 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6b7b05108/f5eee3e312b84712892add0eb9f5de2d [2019-10-13 21:17:52,700 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-13 21:17:52,702 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-13 21:17:52,703 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-13 21:17:52,704 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-13 21:17:52,707 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-13 21:17:52,708 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 09:17:52" (1/1) ... [2019-10-13 21:17:52,711 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1ca8cea4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:17:52, skipping insertion in model container [2019-10-13 21:17:52,712 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 09:17:52" (1/1) ... [2019-10-13 21:17:52,719 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-13 21:17:52,805 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-13 21:17:53,590 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-13 21:17:53,611 INFO L188 MainTranslator]: Completed pre-run [2019-10-13 21:17:53,759 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-13 21:17:53,869 INFO L192 MainTranslator]: Completed translation [2019-10-13 21:17:53,869 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:17:53 WrapperNode [2019-10-13 21:17:53,870 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-13 21:17:53,871 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-13 21:17:53,871 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-13 21:17:53,871 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-13 21:17:53,886 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:17:53" (1/1) ... [2019-10-13 21:17:53,887 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:17:53" (1/1) ... [2019-10-13 21:17:53,922 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:17:53" (1/1) ... [2019-10-13 21:17:53,923 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:17:53" (1/1) ... [2019-10-13 21:17:53,996 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:17:53" (1/1) ... [2019-10-13 21:17:54,039 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:17:53" (1/1) ... [2019-10-13 21:17:54,053 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:17:53" (1/1) ... [2019-10-13 21:17:54,073 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-13 21:17:54,074 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-13 21:17:54,074 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-13 21:17:54,074 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-13 21:17:54,075 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:17:53" (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 [2019-10-13 21:17:54,167 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-13 21:17:54,168 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-13 21:17:54,168 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-10-13 21:17:54,168 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob__wrappee__Base [2019-10-13 21:17:54,169 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob [2019-10-13 21:17:54,170 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh__wrappee__Base [2019-10-13 21:17:54,170 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh [2019-10-13 21:17:54,170 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck__wrappee__Base [2019-10-13 21:17:54,171 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck [2019-10-13 21:17:54,171 INFO L138 BoogieDeclarations]: Found implementation of procedure bobToRjh [2019-10-13 21:17:54,172 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhToBob [2019-10-13 21:17:54,172 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-10-13 21:17:54,172 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-13 21:17:54,173 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAdd [2019-10-13 21:17:54,173 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAdd [2019-10-13 21:17:54,173 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAddChuck [2019-10-13 21:17:54,176 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAddChuck [2019-10-13 21:17:54,176 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2019-10-13 21:17:54,176 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAddRjh [2019-10-13 21:17:54,176 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhDeletePrivateKey [2019-10-13 21:17:54,177 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyChange [2019-10-13 21:17:54,177 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyChange [2019-10-13 21:17:54,178 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhEnableForwarding [2019-10-13 21:17:54,178 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__EncryptVerify_spec__1 [2019-10-13 21:17:54,178 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-10-13 21:17:54,178 INFO L138 BoogieDeclarations]: Found implementation of procedure mail [2019-10-13 21:17:54,178 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__Keys [2019-10-13 21:17:54,178 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__Encrypt [2019-10-13 21:17:54,179 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2019-10-13 21:17:54,179 INFO L138 BoogieDeclarations]: Found implementation of procedure deliver [2019-10-13 21:17:54,179 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Sign [2019-10-13 21:17:54,179 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Forward [2019-10-13 21:17:54,179 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Verify [2019-10-13 21:17:54,179 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming [2019-10-13 21:17:54,180 INFO L138 BoogieDeclarations]: Found implementation of procedure createClient [2019-10-13 21:17:54,180 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2019-10-13 21:17:54,180 INFO L138 BoogieDeclarations]: Found implementation of procedure queue [2019-10-13 21:17:54,181 INFO L138 BoogieDeclarations]: Found implementation of procedure is_queue_empty [2019-10-13 21:17:54,181 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_client [2019-10-13 21:17:54,181 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_email [2019-10-13 21:17:54,181 INFO L138 BoogieDeclarations]: Found implementation of procedure isKeyPairValid [2019-10-13 21:17:54,181 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2019-10-13 21:17:54,182 INFO L138 BoogieDeclarations]: Found implementation of procedure sign [2019-10-13 21:17:54,182 INFO L138 BoogieDeclarations]: Found implementation of procedure forward [2019-10-13 21:17:54,182 INFO L138 BoogieDeclarations]: Found implementation of procedure verify [2019-10-13 21:17:54,182 INFO L138 BoogieDeclarations]: Found implementation of procedure initEmail [2019-10-13 21:17:54,183 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailId [2019-10-13 21:17:54,183 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailId [2019-10-13 21:17:54,183 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2019-10-13 21:17:54,183 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2019-10-13 21:17:54,183 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2019-10-13 21:17:54,184 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2019-10-13 21:17:54,184 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSubject [2019-10-13 21:17:54,184 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSubject [2019-10-13 21:17:54,184 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailBody [2019-10-13 21:17:54,184 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailBody [2019-10-13 21:17:54,185 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2019-10-13 21:17:54,185 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2019-10-13 21:17:54,185 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2019-10-13 21:17:54,185 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2019-10-13 21:17:54,185 INFO L138 BoogieDeclarations]: Found implementation of procedure isSigned [2019-10-13 21:17:54,185 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSigned [2019-10-13 21:17:54,186 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSignKey [2019-10-13 21:17:54,186 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSignKey [2019-10-13 21:17:54,187 INFO L138 BoogieDeclarations]: Found implementation of procedure isVerified [2019-10-13 21:17:54,187 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSignatureVerified [2019-10-13 21:17:54,187 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-10-13 21:17:54,187 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-10-13 21:17:54,187 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-10-13 21:17:54,188 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-10-13 21:17:54,188 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-10-13 21:17:54,188 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-10-13 21:17:54,188 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__Keys [2019-10-13 21:17:54,189 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__Encrypt [2019-10-13 21:17:54,189 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__Forward [2019-10-13 21:17:54,189 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail [2019-10-13 21:17:54,190 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable__wrappee__Keys [2019-10-13 21:17:54,190 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2019-10-13 21:17:54,190 INFO L138 BoogieDeclarations]: Found implementation of procedure cloneEmail [2019-10-13 21:17:54,191 INFO L138 BoogieDeclarations]: Found implementation of procedure createEmail [2019-10-13 21:17:54,191 INFO L138 BoogieDeclarations]: Found implementation of procedure prompt [2019-10-13 21:17:54,191 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-10-13 21:17:54,191 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-10-13 21:17:54,192 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-10-13 21:17:54,192 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-10-13 21:17:54,193 INFO L138 BoogieDeclarations]: Found implementation of procedure initClient [2019-10-13 21:17:54,193 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientName [2019-10-13 21:17:54,194 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientName [2019-10-13 21:17:54,194 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientOutbuffer [2019-10-13 21:17:54,194 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientOutbuffer [2019-10-13 21:17:54,194 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookSize [2019-10-13 21:17:54,195 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookSize [2019-10-13 21:17:54,195 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientAddressBookEntry [2019-10-13 21:17:54,195 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAlias [2019-10-13 21:17:54,195 INFO L138 BoogieDeclarations]: Found implementation of procedure findClientAddressBookAlias [2019-10-13 21:17:54,195 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAlias [2019-10-13 21:17:54,195 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAddress [2019-10-13 21:17:54,196 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAddress [2019-10-13 21:17:54,196 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAutoResponse [2019-10-13 21:17:54,196 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAutoResponse [2019-10-13 21:17:54,196 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientPrivateKey [2019-10-13 21:17:54,196 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2019-10-13 21:17:54,197 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringSize [2019-10-13 21:17:54,197 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringSize [2019-10-13 21:17:54,197 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2019-10-13 21:17:54,197 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringUser [2019-10-13 21:17:54,197 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2019-10-13 21:17:54,198 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringPublicKey [2019-10-13 21:17:54,198 INFO L138 BoogieDeclarations]: Found implementation of procedure findPublicKey [2019-10-13 21:17:54,198 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2019-10-13 21:17:54,198 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientForwardReceiver [2019-10-13 21:17:54,198 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientForwardReceiver [2019-10-13 21:17:54,198 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientId [2019-10-13 21:17:54,198 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2019-10-13 21:17:54,199 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-10-13 21:17:54,199 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-13 21:17:54,199 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-13 21:17:54,200 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-10-13 21:17:54,200 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2019-10-13 21:17:54,200 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2019-10-13 21:17:54,200 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2019-10-13 21:17:54,201 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringUser [2019-10-13 21:17:54,201 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2019-10-13 21:17:54,201 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringPublicKey [2019-10-13 21:17:54,202 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2019-10-13 21:17:54,202 INFO L130 BoogieDeclarations]: Found specification of procedure setClientForwardReceiver [2019-10-13 21:17:54,202 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2019-10-13 21:17:54,202 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-10-13 21:17:54,202 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-10-13 21:17:54,203 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-10-13 21:17:54,203 INFO L130 BoogieDeclarations]: Found specification of procedure is_queue_empty [2019-10-13 21:17:54,203 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_client [2019-10-13 21:17:54,203 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_email [2019-10-13 21:17:54,204 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2019-10-13 21:17:54,204 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2019-10-13 21:17:54,204 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2019-10-13 21:17:54,205 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob [2019-10-13 21:17:54,209 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh [2019-10-13 21:17:54,209 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck [2019-10-13 21:17:54,209 INFO L130 BoogieDeclarations]: Found specification of procedure bobToRjh [2019-10-13 21:17:54,210 INFO L130 BoogieDeclarations]: Found specification of procedure rjhToBob [2019-10-13 21:17:54,210 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-10-13 21:17:54,211 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-10-13 21:17:54,211 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-13 21:17:54,217 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAdd [2019-10-13 21:17:54,217 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAddChuck [2019-10-13 21:17:54,217 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAdd [2019-10-13 21:17:54,217 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAddChuck [2019-10-13 21:17:54,218 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2019-10-13 21:17:54,218 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyChange [2019-10-13 21:17:54,218 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyChange [2019-10-13 21:17:54,219 INFO L130 BoogieDeclarations]: Found specification of procedure rjhDeletePrivateKey [2019-10-13 21:17:54,219 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAddRjh [2019-10-13 21:17:54,219 INFO L130 BoogieDeclarations]: Found specification of procedure rjhEnableForwarding [2019-10-13 21:17:54,219 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob__wrappee__Base [2019-10-13 21:17:54,219 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh__wrappee__Base [2019-10-13 21:17:54,220 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck__wrappee__Base [2019-10-13 21:17:54,220 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-13 21:17:54,220 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-10-13 21:17:54,220 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2019-10-13 21:17:54,220 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__EncryptVerify_spec__1 [2019-10-13 21:17:54,220 INFO L130 BoogieDeclarations]: Found specification of procedure initClient [2019-10-13 21:17:54,220 INFO L130 BoogieDeclarations]: Found specification of procedure getClientPrivateKey [2019-10-13 21:17:54,221 INFO L130 BoogieDeclarations]: Found specification of procedure getClientForwardReceiver [2019-10-13 21:17:54,221 INFO L130 BoogieDeclarations]: Found specification of procedure getClientId [2019-10-13 21:17:54,221 INFO L130 BoogieDeclarations]: Found specification of procedure findPublicKey [2019-10-13 21:17:54,221 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2019-10-13 21:17:54,221 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2019-10-13 21:17:54,221 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2019-10-13 21:17:54,221 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2019-10-13 21:17:54,221 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2019-10-13 21:17:54,222 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2019-10-13 21:17:54,222 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2019-10-13 21:17:54,222 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2019-10-13 21:17:54,222 INFO L130 BoogieDeclarations]: Found specification of procedure isSigned [2019-10-13 21:17:54,222 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSigned [2019-10-13 21:17:54,222 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSignKey [2019-10-13 21:17:54,222 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSignKey [2019-10-13 21:17:54,222 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSignatureVerified [2019-10-13 21:17:54,223 INFO L130 BoogieDeclarations]: Found specification of procedure printMail [2019-10-13 21:17:54,223 INFO L130 BoogieDeclarations]: Found specification of procedure createEmail [2019-10-13 21:17:54,223 INFO L130 BoogieDeclarations]: Found specification of procedure queue [2019-10-13 21:17:54,223 INFO L130 BoogieDeclarations]: Found specification of procedure mail [2019-10-13 21:17:54,223 INFO L130 BoogieDeclarations]: Found specification of procedure deliver [2019-10-13 21:17:54,223 INFO L130 BoogieDeclarations]: Found specification of procedure incoming [2019-10-13 21:17:54,223 INFO L130 BoogieDeclarations]: Found specification of procedure createClient [2019-10-13 21:17:54,223 INFO L130 BoogieDeclarations]: Found specification of procedure isKeyPairValid [2019-10-13 21:17:54,224 INFO L130 BoogieDeclarations]: Found specification of procedure sign [2019-10-13 21:17:54,224 INFO L130 BoogieDeclarations]: Found specification of procedure forward [2019-10-13 21:17:54,224 INFO L130 BoogieDeclarations]: Found specification of procedure verify [2019-10-13 21:17:54,224 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__Keys [2019-10-13 21:17:54,224 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__Encrypt [2019-10-13 21:17:54,224 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Sign [2019-10-13 21:17:54,224 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Forward [2019-10-13 21:17:54,225 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Verify [2019-10-13 21:17:54,225 INFO L130 BoogieDeclarations]: Found specification of procedure initEmail [2019-10-13 21:17:54,225 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailId [2019-10-13 21:17:54,225 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailId [2019-10-13 21:17:54,225 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSubject [2019-10-13 21:17:54,225 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSubject [2019-10-13 21:17:54,225 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailBody [2019-10-13 21:17:54,225 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailBody [2019-10-13 21:17:54,226 INFO L130 BoogieDeclarations]: Found specification of procedure isVerified [2019-10-13 21:17:54,226 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-10-13 21:17:54,226 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-10-13 21:17:54,226 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-13 21:17:54,226 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-10-13 21:17:54,226 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-13 21:17:54,226 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-13 21:17:54,226 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-13 21:17:54,227 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-13 21:17:54,227 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-10-13 21:17:54,227 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-13 21:17:54,227 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-10-13 21:17:54,227 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-10-13 21:17:54,227 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-13 21:17:54,227 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-10-13 21:17:54,228 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-10-13 21:17:54,228 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-10-13 21:17:54,228 INFO L130 BoogieDeclarations]: Found specification of procedure cloneEmail [2019-10-13 21:17:54,228 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__Keys [2019-10-13 21:17:54,228 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__Encrypt [2019-10-13 21:17:54,228 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__Forward [2019-10-13 21:17:54,228 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable__wrappee__Keys [2019-10-13 21:17:54,228 INFO L130 BoogieDeclarations]: Found specification of procedure prompt [2019-10-13 21:17:54,229 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-10-13 21:17:54,229 INFO L130 BoogieDeclarations]: Found specification of procedure getClientName [2019-10-13 21:17:54,229 INFO L130 BoogieDeclarations]: Found specification of procedure setClientName [2019-10-13 21:17:54,229 INFO L130 BoogieDeclarations]: Found specification of procedure getClientOutbuffer [2019-10-13 21:17:54,229 INFO L130 BoogieDeclarations]: Found specification of procedure setClientOutbuffer [2019-10-13 21:17:54,229 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookSize [2019-10-13 21:17:54,229 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookSize [2019-10-13 21:17:54,229 INFO L130 BoogieDeclarations]: Found specification of procedure createClientAddressBookEntry [2019-10-13 21:17:54,230 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAlias [2019-10-13 21:17:54,230 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAlias [2019-10-13 21:17:54,230 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAddress [2019-10-13 21:17:54,230 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAddress [2019-10-13 21:17:54,230 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAutoResponse [2019-10-13 21:17:54,230 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAutoResponse [2019-10-13 21:17:54,230 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringSize [2019-10-13 21:17:54,230 INFO L130 BoogieDeclarations]: Found specification of procedure findClientAddressBookAlias [2019-10-13 21:17:54,231 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringSize [2019-10-13 21:17:54,231 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-13 21:17:54,231 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-13 21:17:54,231 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-13 21:17:56,466 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-13 21:17:56,466 INFO L284 CfgBuilder]: Removed 4 assume(true) statements. [2019-10-13 21:17:56,468 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 09:17:56 BoogieIcfgContainer [2019-10-13 21:17:56,468 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-13 21:17:56,470 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-13 21:17:56,470 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-13 21:17:56,473 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-13 21:17:56,473 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 09:17:52" (1/3) ... [2019-10-13 21:17:56,474 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@42ed5667 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 09:17:56, skipping insertion in model container [2019-10-13 21:17:56,475 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:17:53" (2/3) ... [2019-10-13 21:17:56,475 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@42ed5667 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 09:17:56, skipping insertion in model container [2019-10-13 21:17:56,475 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 09:17:56" (3/3) ... [2019-10-13 21:17:56,477 INFO L109 eAbstractionObserver]: Analyzing ICFG email_spec7_product31.cil.c [2019-10-13 21:17:56,489 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-13 21:17:56,499 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-13 21:17:56,514 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-13 21:17:56,565 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-13 21:17:56,565 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-13 21:17:56,566 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-13 21:17:56,570 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-13 21:17:56,570 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-13 21:17:56,570 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-13 21:17:56,570 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-13 21:17:56,571 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-13 21:17:56,612 INFO L276 IsEmpty]: Start isEmpty. Operand 554 states. [2019-10-13 21:17:56,653 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2019-10-13 21:17:56,653 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:17:56,658 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 21:17:56,661 INFO L410 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:17:56,671 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:17:56,671 INFO L82 PathProgramCache]: Analyzing trace with hash 1012113491, now seen corresponding path program 1 times [2019-10-13 21:17:56,684 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:17:56,684 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [603017380] [2019-10-13 21:17:56,684 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:17:56,685 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:17:56,685 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:17:57,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:17:57,512 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2019-10-13 21:17:57,513 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [603017380] [2019-10-13 21:17:57,514 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 21:17:57,514 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-10-13 21:17:57,515 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1747933537] [2019-10-13 21:17:57,523 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-13 21:17:57,525 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:17:57,540 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-13 21:17:57,541 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-13 21:17:57,544 INFO L87 Difference]: Start difference. First operand 554 states. Second operand 2 states. [2019-10-13 21:17:57,676 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:17:57,677 INFO L93 Difference]: Finished difference Result 850 states and 1117 transitions. [2019-10-13 21:17:57,677 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-13 21:17:57,680 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 182 [2019-10-13 21:17:57,682 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:17:57,743 INFO L225 Difference]: With dead ends: 850 [2019-10-13 21:17:57,743 INFO L226 Difference]: Without dead ends: 531 [2019-10-13 21:17:57,759 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 [2019-10-13 21:17:57,789 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 531 states. [2019-10-13 21:17:57,854 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 531 to 531. [2019-10-13 21:17:57,855 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 531 states. [2019-10-13 21:17:57,860 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 531 states to 531 states and 701 transitions. [2019-10-13 21:17:57,863 INFO L78 Accepts]: Start accepts. Automaton has 531 states and 701 transitions. Word has length 182 [2019-10-13 21:17:57,865 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:17:57,865 INFO L462 AbstractCegarLoop]: Abstraction has 531 states and 701 transitions. [2019-10-13 21:17:57,865 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-13 21:17:57,865 INFO L276 IsEmpty]: Start isEmpty. Operand 531 states and 701 transitions. [2019-10-13 21:17:57,871 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 184 [2019-10-13 21:17:57,871 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:17:57,871 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 21:17:57,872 INFO L410 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:17:57,872 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:17:57,872 INFO L82 PathProgramCache]: Analyzing trace with hash -1074774869, now seen corresponding path program 1 times [2019-10-13 21:17:57,873 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:17:57,873 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [478512889] [2019-10-13 21:17:57,873 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:17:57,873 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:17:57,874 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:17:57,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:17:58,171 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2019-10-13 21:17:58,171 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [478512889] [2019-10-13 21:17:58,172 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 21:17:58,172 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-13 21:17:58,172 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [966508722] [2019-10-13 21:17:58,174 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-13 21:17:58,175 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:17:58,175 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-13 21:17:58,175 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 21:17:58,176 INFO L87 Difference]: Start difference. First operand 531 states and 701 transitions. Second operand 3 states. [2019-10-13 21:17:58,302 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:17:58,303 INFO L93 Difference]: Finished difference Result 833 states and 1082 transitions. [2019-10-13 21:17:58,303 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-13 21:17:58,303 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 183 [2019-10-13 21:17:58,307 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:17:58,312 INFO L225 Difference]: With dead ends: 833 [2019-10-13 21:17:58,312 INFO L226 Difference]: Without dead ends: 534 [2019-10-13 21:17:58,315 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 [2019-10-13 21:17:58,317 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 534 states. [2019-10-13 21:17:58,356 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 534 to 533. [2019-10-13 21:17:58,357 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 533 states. [2019-10-13 21:17:58,364 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 533 states to 533 states and 703 transitions. [2019-10-13 21:17:58,364 INFO L78 Accepts]: Start accepts. Automaton has 533 states and 703 transitions. Word has length 183 [2019-10-13 21:17:58,367 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:17:58,368 INFO L462 AbstractCegarLoop]: Abstraction has 533 states and 703 transitions. [2019-10-13 21:17:58,368 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-13 21:17:58,368 INFO L276 IsEmpty]: Start isEmpty. Operand 533 states and 703 transitions. [2019-10-13 21:17:58,375 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 190 [2019-10-13 21:17:58,375 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:17:58,375 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 21:17:58,376 INFO L410 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:17:58,376 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:17:58,376 INFO L82 PathProgramCache]: Analyzing trace with hash 1838955167, now seen corresponding path program 1 times [2019-10-13 21:17:58,377 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:17:58,377 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [918953619] [2019-10-13 21:17:58,377 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:17:58,377 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:17:58,378 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:17:58,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:17:58,621 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2019-10-13 21:17:58,622 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [918953619] [2019-10-13 21:17:58,622 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 21:17:58,622 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-13 21:17:58,623 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1691523984] [2019-10-13 21:17:58,625 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-13 21:17:58,627 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:17:58,628 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-13 21:17:58,628 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 21:17:58,628 INFO L87 Difference]: Start difference. First operand 533 states and 703 transitions. Second operand 3 states. [2019-10-13 21:17:58,690 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:17:58,691 INFO L93 Difference]: Finished difference Result 1042 states and 1404 transitions. [2019-10-13 21:17:58,691 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-13 21:17:58,691 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 189 [2019-10-13 21:17:58,692 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:17:58,699 INFO L225 Difference]: With dead ends: 1042 [2019-10-13 21:17:58,700 INFO L226 Difference]: Without dead ends: 574 [2019-10-13 21:17:58,702 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 [2019-10-13 21:17:58,704 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 574 states. [2019-10-13 21:17:58,738 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 574 to 573. [2019-10-13 21:17:58,738 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 573 states. [2019-10-13 21:17:58,744 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 573 states to 573 states and 772 transitions. [2019-10-13 21:17:58,744 INFO L78 Accepts]: Start accepts. Automaton has 573 states and 772 transitions. Word has length 189 [2019-10-13 21:17:58,746 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:17:58,746 INFO L462 AbstractCegarLoop]: Abstraction has 573 states and 772 transitions. [2019-10-13 21:17:58,746 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-13 21:17:58,746 INFO L276 IsEmpty]: Start isEmpty. Operand 573 states and 772 transitions. [2019-10-13 21:17:58,754 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 191 [2019-10-13 21:17:58,754 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:17:58,756 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 21:17:58,756 INFO L410 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:17:58,756 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:17:58,757 INFO L82 PathProgramCache]: Analyzing trace with hash -120410327, now seen corresponding path program 1 times [2019-10-13 21:17:58,757 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:17:58,757 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [126084016] [2019-10-13 21:17:58,758 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:17:58,758 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:17:58,758 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:17:58,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:17:59,412 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2019-10-13 21:17:59,413 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [126084016] [2019-10-13 21:17:59,413 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 21:17:59,413 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2019-10-13 21:17:59,414 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1774330619] [2019-10-13 21:17:59,414 INFO L442 AbstractCegarLoop]: Interpolant automaton has 19 states [2019-10-13 21:17:59,415 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:17:59,415 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2019-10-13 21:17:59,416 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=300, Unknown=0, NotChecked=0, Total=342 [2019-10-13 21:17:59,416 INFO L87 Difference]: Start difference. First operand 573 states and 772 transitions. Second operand 19 states. [2019-10-13 21:18:05,024 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:18:05,024 INFO L93 Difference]: Finished difference Result 2037 states and 2754 transitions. [2019-10-13 21:18:05,024 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2019-10-13 21:18:05,025 INFO L78 Accepts]: Start accepts. Automaton has 19 states. Word has length 190 [2019-10-13 21:18:05,028 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:18:05,042 INFO L225 Difference]: With dead ends: 2037 [2019-10-13 21:18:05,042 INFO L226 Difference]: Without dead ends: 1751 [2019-10-13 21:18:05,046 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 708 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=287, Invalid=2683, Unknown=0, NotChecked=0, Total=2970 [2019-10-13 21:18:05,049 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1751 states. [2019-10-13 21:18:05,136 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1751 to 1714. [2019-10-13 21:18:05,137 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1714 states. [2019-10-13 21:18:05,148 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1714 states to 1714 states and 2325 transitions. [2019-10-13 21:18:05,149 INFO L78 Accepts]: Start accepts. Automaton has 1714 states and 2325 transitions. Word has length 190 [2019-10-13 21:18:05,150 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:18:05,150 INFO L462 AbstractCegarLoop]: Abstraction has 1714 states and 2325 transitions. [2019-10-13 21:18:05,151 INFO L463 AbstractCegarLoop]: Interpolant automaton has 19 states. [2019-10-13 21:18:05,151 INFO L276 IsEmpty]: Start isEmpty. Operand 1714 states and 2325 transitions. [2019-10-13 21:18:05,156 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 192 [2019-10-13 21:18:05,156 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:18:05,157 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 21:18:05,157 INFO L410 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:18:05,157 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:18:05,158 INFO L82 PathProgramCache]: Analyzing trace with hash -1465895855, now seen corresponding path program 1 times [2019-10-13 21:18:05,158 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:18:05,158 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1852555798] [2019-10-13 21:18:05,159 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:18:05,159 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:18:05,159 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:18:05,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:18:05,547 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2019-10-13 21:18:05,548 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1852555798] [2019-10-13 21:18:05,548 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 21:18:05,549 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2019-10-13 21:18:05,549 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [503062479] [2019-10-13 21:18:05,550 INFO L442 AbstractCegarLoop]: Interpolant automaton has 15 states [2019-10-13 21:18:05,550 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:18:05,550 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2019-10-13 21:18:05,551 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=181, Unknown=0, NotChecked=0, Total=210 [2019-10-13 21:18:05,551 INFO L87 Difference]: Start difference. First operand 1714 states and 2325 transitions. Second operand 15 states. [2019-10-13 21:18:09,563 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:18:09,563 INFO L93 Difference]: Finished difference Result 3011 states and 4062 transitions. [2019-10-13 21:18:09,564 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2019-10-13 21:18:09,564 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 191 [2019-10-13 21:18:09,565 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:18:09,578 INFO L225 Difference]: With dead ends: 3011 [2019-10-13 21:18:09,578 INFO L226 Difference]: Without dead ends: 1816 [2019-10-13 21:18:09,585 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 513 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=229, Invalid=1933, Unknown=0, NotChecked=0, Total=2162 [2019-10-13 21:18:09,588 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1816 states. [2019-10-13 21:18:09,695 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1816 to 1784. [2019-10-13 21:18:09,696 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1784 states. [2019-10-13 21:18:09,706 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1784 states to 1784 states and 2439 transitions. [2019-10-13 21:18:09,707 INFO L78 Accepts]: Start accepts. Automaton has 1784 states and 2439 transitions. Word has length 191 [2019-10-13 21:18:09,709 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:18:09,709 INFO L462 AbstractCegarLoop]: Abstraction has 1784 states and 2439 transitions. [2019-10-13 21:18:09,709 INFO L463 AbstractCegarLoop]: Interpolant automaton has 15 states. [2019-10-13 21:18:09,709 INFO L276 IsEmpty]: Start isEmpty. Operand 1784 states and 2439 transitions. [2019-10-13 21:18:09,714 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 192 [2019-10-13 21:18:09,715 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:18:09,715 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 21:18:09,715 INFO L410 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:18:09,716 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:18:09,716 INFO L82 PathProgramCache]: Analyzing trace with hash -1602067908, now seen corresponding path program 1 times [2019-10-13 21:18:09,716 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:18:09,716 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [223316240] [2019-10-13 21:18:09,717 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:18:09,717 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:18:09,717 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:18:09,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:18:09,999 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2019-10-13 21:18:09,999 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [223316240] [2019-10-13 21:18:10,001 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 21:18:10,003 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2019-10-13 21:18:10,003 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1972021357] [2019-10-13 21:18:10,004 INFO L442 AbstractCegarLoop]: Interpolant automaton has 16 states [2019-10-13 21:18:10,005 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:18:10,005 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2019-10-13 21:18:10,005 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=211, Unknown=0, NotChecked=0, Total=240 [2019-10-13 21:18:10,005 INFO L87 Difference]: Start difference. First operand 1784 states and 2439 transitions. Second operand 16 states. [2019-10-13 21:18:10,465 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:18:10,465 INFO L93 Difference]: Finished difference Result 3171 states and 4308 transitions. [2019-10-13 21:18:10,466 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2019-10-13 21:18:10,466 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 191 [2019-10-13 21:18:10,466 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:18:10,479 INFO L225 Difference]: With dead ends: 3171 [2019-10-13 21:18:10,479 INFO L226 Difference]: Without dead ends: 1856 [2019-10-13 21:18:10,485 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=53, Invalid=409, Unknown=0, NotChecked=0, Total=462 [2019-10-13 21:18:10,487 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1856 states. [2019-10-13 21:18:10,571 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1856 to 1825. [2019-10-13 21:18:10,571 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1825 states. [2019-10-13 21:18:10,582 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1825 states to 1825 states and 2486 transitions. [2019-10-13 21:18:10,583 INFO L78 Accepts]: Start accepts. Automaton has 1825 states and 2486 transitions. Word has length 191 [2019-10-13 21:18:10,583 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:18:10,583 INFO L462 AbstractCegarLoop]: Abstraction has 1825 states and 2486 transitions. [2019-10-13 21:18:10,583 INFO L463 AbstractCegarLoop]: Interpolant automaton has 16 states. [2019-10-13 21:18:10,584 INFO L276 IsEmpty]: Start isEmpty. Operand 1825 states and 2486 transitions. [2019-10-13 21:18:10,589 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 192 [2019-10-13 21:18:10,589 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:18:10,590 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 21:18:10,590 INFO L410 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:18:10,590 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:18:10,590 INFO L82 PathProgramCache]: Analyzing trace with hash 204651284, now seen corresponding path program 1 times [2019-10-13 21:18:10,591 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:18:10,591 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1054256460] [2019-10-13 21:18:10,591 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:18:10,591 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:18:10,591 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:18:10,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:18:10,805 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2019-10-13 21:18:10,805 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1054256460] [2019-10-13 21:18:10,806 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 21:18:10,806 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-10-13 21:18:10,806 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1945087526] [2019-10-13 21:18:10,806 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-13 21:18:10,807 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:18:10,807 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-13 21:18:10,807 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-10-13 21:18:10,807 INFO L87 Difference]: Start difference. First operand 1825 states and 2486 transitions. Second operand 5 states. [2019-10-13 21:18:12,369 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:18:12,369 INFO L93 Difference]: Finished difference Result 4634 states and 6300 transitions. [2019-10-13 21:18:12,370 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-10-13 21:18:12,370 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 191 [2019-10-13 21:18:12,371 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:18:12,401 INFO L225 Difference]: With dead ends: 4634 [2019-10-13 21:18:12,401 INFO L226 Difference]: Without dead ends: 3988 [2019-10-13 21:18:12,407 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2019-10-13 21:18:12,414 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3988 states. [2019-10-13 21:18:12,684 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3988 to 3957. [2019-10-13 21:18:12,684 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3957 states. [2019-10-13 21:18:12,719 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3957 states to 3957 states and 5379 transitions. [2019-10-13 21:18:12,720 INFO L78 Accepts]: Start accepts. Automaton has 3957 states and 5379 transitions. Word has length 191 [2019-10-13 21:18:12,720 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:18:12,720 INFO L462 AbstractCegarLoop]: Abstraction has 3957 states and 5379 transitions. [2019-10-13 21:18:12,721 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-13 21:18:12,721 INFO L276 IsEmpty]: Start isEmpty. Operand 3957 states and 5379 transitions. [2019-10-13 21:18:12,731 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 192 [2019-10-13 21:18:12,732 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:18:12,732 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 21:18:12,733 INFO L410 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:18:12,733 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:18:12,733 INFO L82 PathProgramCache]: Analyzing trace with hash 224988659, now seen corresponding path program 1 times [2019-10-13 21:18:12,734 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:18:12,734 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1547515679] [2019-10-13 21:18:12,734 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:18:12,735 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:18:12,735 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:18:12,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:18:12,993 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2019-10-13 21:18:12,994 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1547515679] [2019-10-13 21:18:12,994 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 21:18:12,994 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-10-13 21:18:12,995 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [907784663] [2019-10-13 21:18:12,996 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-10-13 21:18:12,996 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:18:12,996 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-10-13 21:18:12,996 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-10-13 21:18:12,997 INFO L87 Difference]: Start difference. First operand 3957 states and 5379 transitions. Second operand 7 states. [2019-10-13 21:18:15,490 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:18:15,490 INFO L93 Difference]: Finished difference Result 13336 states and 18632 transitions. [2019-10-13 21:18:15,491 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2019-10-13 21:18:15,491 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 191 [2019-10-13 21:18:15,492 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:18:15,560 INFO L225 Difference]: With dead ends: 13336 [2019-10-13 21:18:15,560 INFO L226 Difference]: Without dead ends: 10293 [2019-10-13 21:18:15,579 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=35, Invalid=121, Unknown=0, NotChecked=0, Total=156 [2019-10-13 21:18:15,592 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10293 states. [2019-10-13 21:18:16,348 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10293 to 10271. [2019-10-13 21:18:16,348 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10271 states. [2019-10-13 21:18:16,389 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10271 states to 10271 states and 14191 transitions. [2019-10-13 21:18:16,391 INFO L78 Accepts]: Start accepts. Automaton has 10271 states and 14191 transitions. Word has length 191 [2019-10-13 21:18:16,392 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:18:16,392 INFO L462 AbstractCegarLoop]: Abstraction has 10271 states and 14191 transitions. [2019-10-13 21:18:16,392 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-10-13 21:18:16,392 INFO L276 IsEmpty]: Start isEmpty. Operand 10271 states and 14191 transitions. [2019-10-13 21:18:16,403 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 193 [2019-10-13 21:18:16,403 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:18:16,403 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 21:18:16,404 INFO L410 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:18:16,404 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:18:16,404 INFO L82 PathProgramCache]: Analyzing trace with hash 10550669, now seen corresponding path program 1 times [2019-10-13 21:18:16,405 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:18:16,405 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1981609225] [2019-10-13 21:18:16,405 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:18:16,405 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:18:16,405 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:18:16,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:18:17,004 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2019-10-13 21:18:17,005 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1981609225] [2019-10-13 21:18:17,005 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 21:18:17,005 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2019-10-13 21:18:17,006 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1447393403] [2019-10-13 21:18:17,006 INFO L442 AbstractCegarLoop]: Interpolant automaton has 26 states [2019-10-13 21:18:17,007 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:18:17,007 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2019-10-13 21:18:17,008 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=601, Unknown=0, NotChecked=0, Total=650 [2019-10-13 21:18:17,008 INFO L87 Difference]: Start difference. First operand 10271 states and 14191 transitions. Second operand 26 states. [2019-10-13 21:18:18,338 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:18:18,338 INFO L93 Difference]: Finished difference Result 19928 states and 27760 transitions. [2019-10-13 21:18:18,339 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2019-10-13 21:18:18,339 INFO L78 Accepts]: Start accepts. Automaton has 26 states. Word has length 192 [2019-10-13 21:18:18,339 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:18:18,395 INFO L225 Difference]: With dead ends: 19928 [2019-10-13 21:18:18,395 INFO L226 Difference]: Without dead ends: 8778 [2019-10-13 21:18:18,435 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 55 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=93, Invalid=1239, Unknown=0, NotChecked=0, Total=1332 [2019-10-13 21:18:18,445 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8778 states. [2019-10-13 21:18:18,831 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8778 to 8555. [2019-10-13 21:18:18,832 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8555 states. [2019-10-13 21:18:18,866 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8555 states to 8555 states and 11702 transitions. [2019-10-13 21:18:18,870 INFO L78 Accepts]: Start accepts. Automaton has 8555 states and 11702 transitions. Word has length 192 [2019-10-13 21:18:18,872 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:18:18,872 INFO L462 AbstractCegarLoop]: Abstraction has 8555 states and 11702 transitions. [2019-10-13 21:18:18,872 INFO L463 AbstractCegarLoop]: Interpolant automaton has 26 states. [2019-10-13 21:18:18,872 INFO L276 IsEmpty]: Start isEmpty. Operand 8555 states and 11702 transitions. [2019-10-13 21:18:18,883 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 197 [2019-10-13 21:18:18,884 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:18:18,884 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 21:18:18,884 INFO L410 AbstractCegarLoop]: === Iteration 10 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:18:18,884 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:18:18,885 INFO L82 PathProgramCache]: Analyzing trace with hash 1712144114, now seen corresponding path program 1 times [2019-10-13 21:18:18,885 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:18:18,885 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1801782102] [2019-10-13 21:18:18,885 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:18:18,885 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:18:18,886 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:18:18,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:18:19,126 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2019-10-13 21:18:19,127 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1801782102] [2019-10-13 21:18:19,128 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 21:18:19,128 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2019-10-13 21:18:19,128 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [572117590] [2019-10-13 21:18:19,129 INFO L442 AbstractCegarLoop]: Interpolant automaton has 10 states [2019-10-13 21:18:19,130 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:18:19,130 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2019-10-13 21:18:19,130 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2019-10-13 21:18:19,131 INFO L87 Difference]: Start difference. First operand 8555 states and 11702 transitions. Second operand 10 states. [2019-10-13 21:18:19,367 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:18:19,367 INFO L93 Difference]: Finished difference Result 8620 states and 11804 transitions. [2019-10-13 21:18:19,367 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2019-10-13 21:18:19,368 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 196 [2019-10-13 21:18:19,368 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:18:19,432 INFO L225 Difference]: With dead ends: 8620 [2019-10-13 21:18:19,432 INFO L226 Difference]: Without dead ends: 8545 [2019-10-13 21:18:19,443 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2019-10-13 21:18:19,455 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8545 states. [2019-10-13 21:18:20,413 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8545 to 8537. [2019-10-13 21:18:20,414 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8537 states. [2019-10-13 21:18:20,445 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8537 states to 8537 states and 11660 transitions. [2019-10-13 21:18:20,446 INFO L78 Accepts]: Start accepts. Automaton has 8537 states and 11660 transitions. Word has length 196 [2019-10-13 21:18:20,447 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:18:20,447 INFO L462 AbstractCegarLoop]: Abstraction has 8537 states and 11660 transitions. [2019-10-13 21:18:20,447 INFO L463 AbstractCegarLoop]: Interpolant automaton has 10 states. [2019-10-13 21:18:20,447 INFO L276 IsEmpty]: Start isEmpty. Operand 8537 states and 11660 transitions. [2019-10-13 21:18:20,457 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 202 [2019-10-13 21:18:20,457 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:18:20,458 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 21:18:20,458 INFO L410 AbstractCegarLoop]: === Iteration 11 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:18:20,458 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:18:20,459 INFO L82 PathProgramCache]: Analyzing trace with hash 1889598004, now seen corresponding path program 1 times [2019-10-13 21:18:20,459 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:18:20,459 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [807322896] [2019-10-13 21:18:20,459 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:18:20,459 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:18:20,460 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:18:20,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:18:20,612 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2019-10-13 21:18:20,612 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [807322896] [2019-10-13 21:18:20,613 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 21:18:20,613 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-10-13 21:18:20,613 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [380953465] [2019-10-13 21:18:20,614 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-13 21:18:20,614 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:18:20,614 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-13 21:18:20,614 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-10-13 21:18:20,614 INFO L87 Difference]: Start difference. First operand 8537 states and 11660 transitions. Second operand 5 states. [2019-10-13 21:18:20,901 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:18:20,901 INFO L93 Difference]: Finished difference Result 16187 states and 21888 transitions. [2019-10-13 21:18:20,902 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-10-13 21:18:20,902 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 201 [2019-10-13 21:18:20,902 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:18:20,949 INFO L225 Difference]: With dead ends: 16187 [2019-10-13 21:18:20,949 INFO L226 Difference]: Without dead ends: 8726 [2019-10-13 21:18:20,975 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-10-13 21:18:20,985 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8726 states. [2019-10-13 21:18:21,489 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8726 to 8641. [2019-10-13 21:18:21,489 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8641 states. [2019-10-13 21:18:21,520 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8641 states to 8641 states and 11794 transitions. [2019-10-13 21:18:21,523 INFO L78 Accepts]: Start accepts. Automaton has 8641 states and 11794 transitions. Word has length 201 [2019-10-13 21:18:21,524 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:18:21,524 INFO L462 AbstractCegarLoop]: Abstraction has 8641 states and 11794 transitions. [2019-10-13 21:18:21,524 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-13 21:18:21,524 INFO L276 IsEmpty]: Start isEmpty. Operand 8641 states and 11794 transitions. [2019-10-13 21:18:21,533 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 202 [2019-10-13 21:18:21,534 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:18:21,534 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 21:18:21,534 INFO L410 AbstractCegarLoop]: === Iteration 12 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:18:21,534 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:18:21,535 INFO L82 PathProgramCache]: Analyzing trace with hash -1244172180, now seen corresponding path program 1 times [2019-10-13 21:18:21,535 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:18:21,535 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [79527292] [2019-10-13 21:18:21,535 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:18:21,535 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:18:21,535 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:18:21,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:18:21,744 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2019-10-13 21:18:21,745 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [79527292] [2019-10-13 21:18:21,745 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 21:18:21,745 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2019-10-13 21:18:21,745 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [204612637] [2019-10-13 21:18:21,746 INFO L442 AbstractCegarLoop]: Interpolant automaton has 11 states [2019-10-13 21:18:21,746 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:18:21,746 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2019-10-13 21:18:21,747 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110 [2019-10-13 21:18:21,747 INFO L87 Difference]: Start difference. First operand 8641 states and 11794 transitions. Second operand 11 states. [2019-10-13 21:18:22,344 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:18:22,344 INFO L93 Difference]: Finished difference Result 16228 states and 21857 transitions. [2019-10-13 21:18:22,345 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2019-10-13 21:18:22,345 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 201 [2019-10-13 21:18:22,345 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:18:22,384 INFO L225 Difference]: With dead ends: 16228 [2019-10-13 21:18:22,384 INFO L226 Difference]: Without dead ends: 8651 [2019-10-13 21:18:22,412 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=59, Invalid=283, Unknown=0, NotChecked=0, Total=342 [2019-10-13 21:18:22,423 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8651 states.