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_spec11_product32.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-13a467a-m [2019-10-15 01:12:36,951 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-15 01:12:36,953 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-15 01:12:36,965 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-15 01:12:36,966 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-15 01:12:36,967 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-15 01:12:36,968 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-15 01:12:36,970 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-15 01:12:36,972 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-15 01:12:36,973 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-15 01:12:36,974 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-15 01:12:36,975 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-15 01:12:36,975 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-15 01:12:36,976 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-15 01:12:36,977 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-15 01:12:36,979 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-15 01:12:36,980 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-15 01:12:36,981 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-15 01:12:36,983 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-15 01:12:36,985 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-15 01:12:36,987 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-15 01:12:36,991 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-15 01:12:36,993 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-15 01:12:36,995 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-15 01:12:37,001 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-15 01:12:37,001 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-15 01:12:37,002 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-15 01:12:37,003 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-15 01:12:37,003 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-15 01:12:37,007 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-15 01:12:37,007 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-15 01:12:37,010 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-15 01:12:37,011 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-15 01:12:37,012 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-15 01:12:37,016 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-15 01:12:37,016 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-15 01:12:37,017 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-15 01:12:37,018 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-15 01:12:37,018 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-15 01:12:37,019 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-15 01:12:37,020 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-15 01:12:37,024 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2019-10-15 01:12:37,049 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-15 01:12:37,050 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-15 01:12:37,051 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-15 01:12:37,051 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-15 01:12:37,052 INFO L138 SettingsManager]: * Use SBE=true [2019-10-15 01:12:37,052 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-15 01:12:37,052 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-15 01:12:37,052 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-15 01:12:37,053 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-15 01:12:37,053 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-15 01:12:37,054 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-15 01:12:37,054 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-15 01:12:37,054 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-15 01:12:37,055 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-15 01:12:37,055 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-15 01:12:37,055 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-15 01:12:37,055 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-15 01:12:37,056 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-15 01:12:37,056 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-15 01:12:37,056 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-15 01:12:37,056 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-15 01:12:37,057 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-15 01:12:37,057 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-15 01:12:37,057 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-15 01:12:37,057 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-15 01:12:37,057 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-15 01:12:37,058 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-15 01:12:37,058 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-15 01:12:37,058 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2: Abstract domain -> IntervalDomain Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> TAIPAN Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Abstract interpretation Mode -> USE_PREDICATES [2019-10-15 01:12:37,386 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-15 01:12:37,403 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-15 01:12:37,408 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-15 01:12:37,409 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-15 01:12:37,410 INFO L275 PluginConnector]: CDTParser initialized [2019-10-15 01:12:37,411 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/email_spec11_product32.cil.c [2019-10-15 01:12:37,487 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4b4f2c2ef/9eb9aa6b1acf42d89448b8f3ecf77c15/FLAG859f8424a [2019-10-15 01:12:38,147 INFO L306 CDTParser]: Found 1 translation units. [2019-10-15 01:12:38,148 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/email_spec11_product32.cil.c [2019-10-15 01:12:38,182 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4b4f2c2ef/9eb9aa6b1acf42d89448b8f3ecf77c15/FLAG859f8424a [2019-10-15 01:12:38,374 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4b4f2c2ef/9eb9aa6b1acf42d89448b8f3ecf77c15 [2019-10-15 01:12:38,382 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-15 01:12:38,383 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-15 01:12:38,384 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-15 01:12:38,384 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-15 01:12:38,387 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-15 01:12:38,388 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 01:12:38" (1/1) ... [2019-10-15 01:12:38,391 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@21180631 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:12:38, skipping insertion in model container [2019-10-15 01:12:38,391 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 01:12:38" (1/1) ... [2019-10-15 01:12:38,398 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-15 01:12:38,486 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-15 01:12:39,316 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-15 01:12:39,336 INFO L188 MainTranslator]: Completed pre-run [2019-10-15 01:12:39,482 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-15 01:12:39,653 INFO L192 MainTranslator]: Completed translation [2019-10-15 01:12:39,654 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:12:39 WrapperNode [2019-10-15 01:12:39,655 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-15 01:12:39,657 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-15 01:12:39,657 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-15 01:12:39,657 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-15 01:12:39,678 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:12:39" (1/1) ... [2019-10-15 01:12:39,679 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:12:39" (1/1) ... [2019-10-15 01:12:39,768 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:12:39" (1/1) ... [2019-10-15 01:12:39,768 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:12:39" (1/1) ... [2019-10-15 01:12:39,876 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:12:39" (1/1) ... [2019-10-15 01:12:39,911 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:12:39" (1/1) ... [2019-10-15 01:12:39,926 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:12:39" (1/1) ... [2019-10-15 01:12:39,942 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-15 01:12:39,942 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-15 01:12:39,943 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-15 01:12:39,943 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-15 01:12:39,948 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:12:39" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-15 01:12:40,063 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-15 01:12:40,064 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-15 01:12:40,064 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-10-15 01:12:40,064 INFO L138 BoogieDeclarations]: Found implementation of procedure initClient [2019-10-15 01:12:40,065 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientName [2019-10-15 01:12:40,066 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientName [2019-10-15 01:12:40,066 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientOutbuffer [2019-10-15 01:12:40,067 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientOutbuffer [2019-10-15 01:12:40,067 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookSize [2019-10-15 01:12:40,068 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookSize [2019-10-15 01:12:40,068 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientAddressBookEntry [2019-10-15 01:12:40,068 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAlias [2019-10-15 01:12:40,069 INFO L138 BoogieDeclarations]: Found implementation of procedure findClientAddressBookAlias [2019-10-15 01:12:40,070 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAlias [2019-10-15 01:12:40,070 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAddress [2019-10-15 01:12:40,071 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAddress [2019-10-15 01:12:40,074 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAutoResponse [2019-10-15 01:12:40,074 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAutoResponse [2019-10-15 01:12:40,075 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientPrivateKey [2019-10-15 01:12:40,075 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2019-10-15 01:12:40,075 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringSize [2019-10-15 01:12:40,076 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringSize [2019-10-15 01:12:40,076 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2019-10-15 01:12:40,076 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringUser [2019-10-15 01:12:40,076 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2019-10-15 01:12:40,076 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringPublicKey [2019-10-15 01:12:40,077 INFO L138 BoogieDeclarations]: Found implementation of procedure findPublicKey [2019-10-15 01:12:40,077 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2019-10-15 01:12:40,077 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientForwardReceiver [2019-10-15 01:12:40,078 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientForwardReceiver [2019-10-15 01:12:40,078 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientId [2019-10-15 01:12:40,078 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2019-10-15 01:12:40,078 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob__wrappee__Base [2019-10-15 01:12:40,078 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob [2019-10-15 01:12:40,078 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh__wrappee__Base [2019-10-15 01:12:40,079 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh [2019-10-15 01:12:40,079 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck__wrappee__Base [2019-10-15 01:12:40,079 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck [2019-10-15 01:12:40,079 INFO L138 BoogieDeclarations]: Found implementation of procedure bobToRjh [2019-10-15 01:12:40,080 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhToBob [2019-10-15 01:12:40,080 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-10-15 01:12:40,080 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-15 01:12:40,080 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAdd [2019-10-15 01:12:40,080 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAdd [2019-10-15 01:12:40,080 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAddChuck [2019-10-15 01:12:40,081 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAddChuck [2019-10-15 01:12:40,081 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2019-10-15 01:12:40,081 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAddRjh [2019-10-15 01:12:40,081 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhDeletePrivateKey [2019-10-15 01:12:40,081 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyChange [2019-10-15 01:12:40,081 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyChange [2019-10-15 01:12:40,081 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhSetAutoRespond [2019-10-15 01:12:40,082 INFO L138 BoogieDeclarations]: Found implementation of procedure bobSetAddressBook [2019-10-15 01:12:40,082 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-10-15 01:12:40,082 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-10-15 01:12:40,082 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-10-15 01:12:40,082 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-10-15 01:12:40,082 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__Keys [2019-10-15 01:12:40,082 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__AddressBook [2019-10-15 01:12:40,083 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__Sign [2019-10-15 01:12:40,083 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail [2019-10-15 01:12:40,084 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable__wrappee__Keys [2019-10-15 01:12:40,084 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2019-10-15 01:12:40,084 INFO L138 BoogieDeclarations]: Found implementation of procedure cloneEmail [2019-10-15 01:12:40,085 INFO L138 BoogieDeclarations]: Found implementation of procedure createEmail [2019-10-15 01:12:40,085 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-10-15 01:12:40,085 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-10-15 01:12:40,085 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-10-15 01:12:40,086 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-10-15 01:12:40,086 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-10-15 01:12:40,086 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-10-15 01:12:40,086 INFO L138 BoogieDeclarations]: Found implementation of procedure prompt [2019-10-15 01:12:40,087 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-10-15 01:12:40,088 INFO L138 BoogieDeclarations]: Found implementation of procedure mail [2019-10-15 01:12:40,088 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__Keys [2019-10-15 01:12:40,088 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__AutoResponder [2019-10-15 01:12:40,088 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__AddressBook [2019-10-15 01:12:40,089 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2019-10-15 01:12:40,089 INFO L138 BoogieDeclarations]: Found implementation of procedure deliver [2019-10-15 01:12:40,090 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Encrypt [2019-10-15 01:12:40,090 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Sign [2019-10-15 01:12:40,091 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Verify [2019-10-15 01:12:40,091 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming [2019-10-15 01:12:40,091 INFO L138 BoogieDeclarations]: Found implementation of procedure createClient [2019-10-15 01:12:40,092 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2019-10-15 01:12:40,093 INFO L138 BoogieDeclarations]: Found implementation of procedure queue [2019-10-15 01:12:40,093 INFO L138 BoogieDeclarations]: Found implementation of procedure is_queue_empty [2019-10-15 01:12:40,094 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_client [2019-10-15 01:12:40,094 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_email [2019-10-15 01:12:40,094 INFO L138 BoogieDeclarations]: Found implementation of procedure isKeyPairValid [2019-10-15 01:12:40,095 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2019-10-15 01:12:40,095 INFO L138 BoogieDeclarations]: Found implementation of procedure autoRespond [2019-10-15 01:12:40,095 INFO L138 BoogieDeclarations]: Found implementation of procedure sendToAddressBook [2019-10-15 01:12:40,095 INFO L138 BoogieDeclarations]: Found implementation of procedure sign [2019-10-15 01:12:40,096 INFO L138 BoogieDeclarations]: Found implementation of procedure verify [2019-10-15 01:12:40,096 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__DecryptAutoResponder_spec__1 [2019-10-15 01:12:40,096 INFO L138 BoogieDeclarations]: Found implementation of procedure initEmail [2019-10-15 01:12:40,096 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailId [2019-10-15 01:12:40,097 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailId [2019-10-15 01:12:40,097 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2019-10-15 01:12:40,097 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2019-10-15 01:12:40,097 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2019-10-15 01:12:40,098 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2019-10-15 01:12:40,098 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSubject [2019-10-15 01:12:40,098 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSubject [2019-10-15 01:12:40,098 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailBody [2019-10-15 01:12:40,099 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailBody [2019-10-15 01:12:40,099 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2019-10-15 01:12:40,099 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2019-10-15 01:12:40,099 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2019-10-15 01:12:40,100 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2019-10-15 01:12:40,100 INFO L138 BoogieDeclarations]: Found implementation of procedure isSigned [2019-10-15 01:12:40,100 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSigned [2019-10-15 01:12:40,100 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSignKey [2019-10-15 01:12:40,101 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSignKey [2019-10-15 01:12:40,101 INFO L138 BoogieDeclarations]: Found implementation of procedure isVerified [2019-10-15 01:12:40,102 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSignatureVerified [2019-10-15 01:12:40,102 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-10-15 01:12:40,102 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-15 01:12:40,102 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-15 01:12:40,103 INFO L130 BoogieDeclarations]: Found specification of procedure initClient [2019-10-15 01:12:40,103 INFO L130 BoogieDeclarations]: Found specification of procedure getClientName [2019-10-15 01:12:40,103 INFO L130 BoogieDeclarations]: Found specification of procedure setClientName [2019-10-15 01:12:40,104 INFO L130 BoogieDeclarations]: Found specification of procedure getClientOutbuffer [2019-10-15 01:12:40,105 INFO L130 BoogieDeclarations]: Found specification of procedure setClientOutbuffer [2019-10-15 01:12:40,106 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookSize [2019-10-15 01:12:40,106 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookSize [2019-10-15 01:12:40,106 INFO L130 BoogieDeclarations]: Found specification of procedure createClientAddressBookEntry [2019-10-15 01:12:40,106 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAlias [2019-10-15 01:12:40,106 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAlias [2019-10-15 01:12:40,107 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAddress [2019-10-15 01:12:40,107 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAddress [2019-10-15 01:12:40,108 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAutoResponse [2019-10-15 01:12:40,108 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAutoResponse [2019-10-15 01:12:40,108 INFO L130 BoogieDeclarations]: Found specification of procedure getClientPrivateKey [2019-10-15 01:12:40,108 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2019-10-15 01:12:40,109 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringSize [2019-10-15 01:12:40,114 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2019-10-15 01:12:40,114 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringUser [2019-10-15 01:12:40,114 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2019-10-15 01:12:40,115 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringPublicKey [2019-10-15 01:12:40,115 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2019-10-15 01:12:40,116 INFO L130 BoogieDeclarations]: Found specification of procedure getClientForwardReceiver [2019-10-15 01:12:40,117 INFO L130 BoogieDeclarations]: Found specification of procedure setClientForwardReceiver [2019-10-15 01:12:40,126 INFO L130 BoogieDeclarations]: Found specification of procedure getClientId [2019-10-15 01:12:40,126 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2019-10-15 01:12:40,126 INFO L130 BoogieDeclarations]: Found specification of procedure findPublicKey [2019-10-15 01:12:40,127 INFO L130 BoogieDeclarations]: Found specification of procedure findClientAddressBookAlias [2019-10-15 01:12:40,127 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringSize [2019-10-15 01:12:40,128 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-10-15 01:12:40,129 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2019-10-15 01:12:40,129 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-10-15 01:12:40,129 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-10-15 01:12:40,129 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-10-15 01:12:40,130 INFO L130 BoogieDeclarations]: Found specification of procedure is_queue_empty [2019-10-15 01:12:40,130 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_client [2019-10-15 01:12:40,130 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_email [2019-10-15 01:12:40,130 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2019-10-15 01:12:40,130 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2019-10-15 01:12:40,131 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2019-10-15 01:12:40,131 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob [2019-10-15 01:12:40,131 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh [2019-10-15 01:12:40,131 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck [2019-10-15 01:12:40,132 INFO L130 BoogieDeclarations]: Found specification of procedure bobToRjh [2019-10-15 01:12:40,132 INFO L130 BoogieDeclarations]: Found specification of procedure rjhToBob [2019-10-15 01:12:40,132 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-10-15 01:12:40,132 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-10-15 01:12:40,132 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-15 01:12:40,133 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAdd [2019-10-15 01:12:40,133 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAddChuck [2019-10-15 01:12:40,133 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAdd [2019-10-15 01:12:40,133 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAddChuck [2019-10-15 01:12:40,134 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2019-10-15 01:12:40,134 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyChange [2019-10-15 01:12:40,134 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyChange [2019-10-15 01:12:40,134 INFO L130 BoogieDeclarations]: Found specification of procedure rjhDeletePrivateKey [2019-10-15 01:12:40,135 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAddRjh [2019-10-15 01:12:40,135 INFO L130 BoogieDeclarations]: Found specification of procedure rjhSetAutoRespond [2019-10-15 01:12:40,135 INFO L130 BoogieDeclarations]: Found specification of procedure bobSetAddressBook [2019-10-15 01:12:40,136 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob__wrappee__Base [2019-10-15 01:12:40,136 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh__wrappee__Base [2019-10-15 01:12:40,136 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck__wrappee__Base [2019-10-15 01:12:40,136 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-15 01:12:40,137 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-10-15 01:12:40,137 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailId [2019-10-15 01:12:40,137 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2019-10-15 01:12:40,137 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2019-10-15 01:12:40,138 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2019-10-15 01:12:40,138 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2019-10-15 01:12:40,138 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2019-10-15 01:12:40,139 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2019-10-15 01:12:40,139 INFO L130 BoogieDeclarations]: Found specification of procedure isSigned [2019-10-15 01:12:40,139 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSignKey [2019-10-15 01:12:40,139 INFO L130 BoogieDeclarations]: Found specification of procedure isVerified [2019-10-15 01:12:40,139 INFO L130 BoogieDeclarations]: Found specification of procedure printMail [2019-10-15 01:12:40,140 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2019-10-15 01:12:40,140 INFO L130 BoogieDeclarations]: Found specification of procedure createEmail [2019-10-15 01:12:40,140 INFO L130 BoogieDeclarations]: Found specification of procedure cloneEmail [2019-10-15 01:12:40,141 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__Keys [2019-10-15 01:12:40,141 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__AddressBook [2019-10-15 01:12:40,141 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__Sign [2019-10-15 01:12:40,141 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable__wrappee__Keys [2019-10-15 01:12:40,142 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-10-15 01:12:40,142 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-10-15 01:12:40,142 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-15 01:12:40,142 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-10-15 01:12:40,143 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-15 01:12:40,143 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-15 01:12:40,143 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-15 01:12:40,143 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-15 01:12:40,144 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-10-15 01:12:40,144 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-15 01:12:40,144 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-10-15 01:12:40,145 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-10-15 01:12:40,145 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-15 01:12:40,145 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-10-15 01:12:40,145 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-10-15 01:12:40,146 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-10-15 01:12:40,146 INFO L130 BoogieDeclarations]: Found specification of procedure prompt [2019-10-15 01:12:40,146 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-10-15 01:12:40,146 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2019-10-15 01:12:40,147 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2019-10-15 01:12:40,147 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSigned [2019-10-15 01:12:40,147 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSignKey [2019-10-15 01:12:40,148 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSignatureVerified [2019-10-15 01:12:40,148 INFO L130 BoogieDeclarations]: Found specification of procedure queue [2019-10-15 01:12:40,148 INFO L130 BoogieDeclarations]: Found specification of procedure mail [2019-10-15 01:12:40,148 INFO L130 BoogieDeclarations]: Found specification of procedure deliver [2019-10-15 01:12:40,149 INFO L130 BoogieDeclarations]: Found specification of procedure incoming [2019-10-15 01:12:40,149 INFO L130 BoogieDeclarations]: Found specification of procedure createClient [2019-10-15 01:12:40,149 INFO L130 BoogieDeclarations]: Found specification of procedure isKeyPairValid [2019-10-15 01:12:40,149 INFO L130 BoogieDeclarations]: Found specification of procedure autoRespond [2019-10-15 01:12:40,150 INFO L130 BoogieDeclarations]: Found specification of procedure sendToAddressBook [2019-10-15 01:12:40,150 INFO L130 BoogieDeclarations]: Found specification of procedure sign [2019-10-15 01:12:40,150 INFO L130 BoogieDeclarations]: Found specification of procedure verify [2019-10-15 01:12:40,150 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__Keys [2019-10-15 01:12:40,151 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__AutoResponder [2019-10-15 01:12:40,151 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__AddressBook [2019-10-15 01:12:40,151 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Encrypt [2019-10-15 01:12:40,152 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Sign [2019-10-15 01:12:40,152 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Verify [2019-10-15 01:12:40,152 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__DecryptAutoResponder_spec__1 [2019-10-15 01:12:40,152 INFO L130 BoogieDeclarations]: Found specification of procedure initEmail [2019-10-15 01:12:40,153 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailId [2019-10-15 01:12:40,153 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSubject [2019-10-15 01:12:40,153 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSubject [2019-10-15 01:12:40,153 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailBody [2019-10-15 01:12:40,154 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailBody [2019-10-15 01:12:40,154 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-15 01:12:40,154 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-15 01:12:40,154 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-15 01:12:42,640 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-15 01:12:42,641 INFO L284 CfgBuilder]: Removed 4 assume(true) statements. [2019-10-15 01:12:42,643 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 01:12:42 BoogieIcfgContainer [2019-10-15 01:12:42,643 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-15 01:12:42,644 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-15 01:12:42,644 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-15 01:12:42,648 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-15 01:12:42,648 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.10 01:12:38" (1/3) ... [2019-10-15 01:12:42,649 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6355f254 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 01:12:42, skipping insertion in model container [2019-10-15 01:12:42,649 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:12:39" (2/3) ... [2019-10-15 01:12:42,649 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6355f254 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 01:12:42, skipping insertion in model container [2019-10-15 01:12:42,650 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 01:12:42" (3/3) ... [2019-10-15 01:12:42,653 INFO L109 eAbstractionObserver]: Analyzing ICFG email_spec11_product32.cil.c [2019-10-15 01:12:42,668 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-15 01:12:42,680 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-15 01:12:42,693 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-15 01:12:42,747 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-15 01:12:42,747 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-15 01:12:42,747 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-15 01:12:42,747 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-15 01:12:42,748 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-15 01:12:42,751 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-15 01:12:42,751 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-15 01:12:42,751 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-15 01:12:42,799 INFO L276 IsEmpty]: Start isEmpty. Operand 634 states. [2019-10-15 01:12:42,839 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 226 [2019-10-15 01:12:42,839 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:12:42,842 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 01:12:42,846 INFO L410 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:12:42,853 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:12:42,854 INFO L82 PathProgramCache]: Analyzing trace with hash 524711374, now seen corresponding path program 1 times [2019-10-15 01:12:42,865 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:12:42,865 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1087318876] [2019-10-15 01:12:42,866 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:12:42,866 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:12:42,866 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:12:43,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:12:43,658 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2019-10-15 01:12:43,659 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1087318876] [2019-10-15 01:12:43,660 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:12:43,661 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-10-15 01:12:43,661 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2075573125] [2019-10-15 01:12:43,668 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-15 01:12:43,670 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:12:43,685 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-15 01:12:43,686 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-15 01:12:43,688 INFO L87 Difference]: Start difference. First operand 634 states. Second operand 2 states. [2019-10-15 01:12:43,813 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:12:43,813 INFO L93 Difference]: Finished difference Result 898 states and 1221 transitions. [2019-10-15 01:12:43,813 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-15 01:12:43,815 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 225 [2019-10-15 01:12:43,816 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:12:43,854 INFO L225 Difference]: With dead ends: 898 [2019-10-15 01:12:43,854 INFO L226 Difference]: Without dead ends: 577 [2019-10-15 01:12:43,869 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-15 01:12:43,893 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 577 states. [2019-10-15 01:12:44,000 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 577 to 577. [2019-10-15 01:12:44,002 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 577 states. [2019-10-15 01:12:44,008 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 577 states to 577 states and 787 transitions. [2019-10-15 01:12:44,011 INFO L78 Accepts]: Start accepts. Automaton has 577 states and 787 transitions. Word has length 225 [2019-10-15 01:12:44,013 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:12:44,013 INFO L462 AbstractCegarLoop]: Abstraction has 577 states and 787 transitions. [2019-10-15 01:12:44,013 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-15 01:12:44,014 INFO L276 IsEmpty]: Start isEmpty. Operand 577 states and 787 transitions. [2019-10-15 01:12:44,020 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 227 [2019-10-15 01:12:44,020 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:12:44,021 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 01:12:44,021 INFO L410 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:12:44,021 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:12:44,022 INFO L82 PathProgramCache]: Analyzing trace with hash 426124943, now seen corresponding path program 1 times [2019-10-15 01:12:44,022 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:12:44,022 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [490024170] [2019-10-15 01:12:44,022 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:12:44,023 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:12:44,023 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:12:44,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:12:44,360 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2019-10-15 01:12:44,361 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [490024170] [2019-10-15 01:12:44,361 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:12:44,361 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-15 01:12:44,362 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [113006334] [2019-10-15 01:12:44,364 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-15 01:12:44,365 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:12:44,365 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-15 01:12:44,365 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 01:12:44,365 INFO L87 Difference]: Start difference. First operand 577 states and 787 transitions. Second operand 3 states. [2019-10-15 01:12:44,423 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:12:44,423 INFO L93 Difference]: Finished difference Result 881 states and 1182 transitions. [2019-10-15 01:12:44,424 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-15 01:12:44,425 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 226 [2019-10-15 01:12:44,429 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:12:44,433 INFO L225 Difference]: With dead ends: 881 [2019-10-15 01:12:44,434 INFO L226 Difference]: Without dead ends: 580 [2019-10-15 01:12:44,436 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 01:12:44,437 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 580 states. [2019-10-15 01:12:44,468 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 580 to 579. [2019-10-15 01:12:44,468 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 579 states. [2019-10-15 01:12:44,474 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 579 states to 579 states and 789 transitions. [2019-10-15 01:12:44,474 INFO L78 Accepts]: Start accepts. Automaton has 579 states and 789 transitions. Word has length 226 [2019-10-15 01:12:44,475 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:12:44,476 INFO L462 AbstractCegarLoop]: Abstraction has 579 states and 789 transitions. [2019-10-15 01:12:44,476 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-15 01:12:44,476 INFO L276 IsEmpty]: Start isEmpty. Operand 579 states and 789 transitions. [2019-10-15 01:12:44,485 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 237 [2019-10-15 01:12:44,485 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:12:44,485 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 01:12:44,486 INFO L410 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:12:44,486 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:12:44,486 INFO L82 PathProgramCache]: Analyzing trace with hash -478434401, now seen corresponding path program 1 times [2019-10-15 01:12:44,486 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:12:44,487 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2126059844] [2019-10-15 01:12:44,487 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:12:44,487 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:12:44,487 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:12:44,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:12:44,782 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2019-10-15 01:12:44,783 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2126059844] [2019-10-15 01:12:44,783 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:12:44,783 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-15 01:12:44,784 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1067400205] [2019-10-15 01:12:44,787 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-15 01:12:44,789 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:12:44,789 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-15 01:12:44,790 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 01:12:44,790 INFO L87 Difference]: Start difference. First operand 579 states and 789 transitions. Second operand 3 states. [2019-10-15 01:12:44,949 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:12:44,950 INFO L93 Difference]: Finished difference Result 1136 states and 1579 transitions. [2019-10-15 01:12:44,950 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-15 01:12:44,951 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 236 [2019-10-15 01:12:44,952 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:12:44,960 INFO L225 Difference]: With dead ends: 1136 [2019-10-15 01:12:44,960 INFO L226 Difference]: Without dead ends: 622 [2019-10-15 01:12:44,963 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 01:12:44,966 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 622 states. [2019-10-15 01:12:45,011 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 622 to 621. [2019-10-15 01:12:45,011 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 621 states. [2019-10-15 01:12:45,018 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 621 states to 621 states and 861 transitions. [2019-10-15 01:12:45,019 INFO L78 Accepts]: Start accepts. Automaton has 621 states and 861 transitions. Word has length 236 [2019-10-15 01:12:45,023 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:12:45,023 INFO L462 AbstractCegarLoop]: Abstraction has 621 states and 861 transitions. [2019-10-15 01:12:45,023 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-15 01:12:45,023 INFO L276 IsEmpty]: Start isEmpty. Operand 621 states and 861 transitions. [2019-10-15 01:12:45,031 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 238 [2019-10-15 01:12:45,031 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:12:45,032 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 01:12:45,032 INFO L410 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:12:45,032 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:12:45,033 INFO L82 PathProgramCache]: Analyzing trace with hash 28118044, now seen corresponding path program 1 times [2019-10-15 01:12:45,034 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:12:45,034 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2101999456] [2019-10-15 01:12:45,035 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:12:45,035 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:12:45,035 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:12:45,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:12:45,359 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2019-10-15 01:12:45,359 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2101999456] [2019-10-15 01:12:45,360 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:12:45,360 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-15 01:12:45,360 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [285105165] [2019-10-15 01:12:45,361 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-15 01:12:45,362 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:12:45,362 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-15 01:12:45,362 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 01:12:45,363 INFO L87 Difference]: Start difference. First operand 621 states and 861 transitions. Second operand 3 states. [2019-10-15 01:12:45,418 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:12:45,418 INFO L93 Difference]: Finished difference Result 1259 states and 1790 transitions. [2019-10-15 01:12:45,419 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-15 01:12:45,419 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 237 [2019-10-15 01:12:45,420 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:12:45,425 INFO L225 Difference]: With dead ends: 1259 [2019-10-15 01:12:45,425 INFO L226 Difference]: Without dead ends: 703 [2019-10-15 01:12:45,428 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 01:12:45,430 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 703 states. [2019-10-15 01:12:45,457 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 703 to 702. [2019-10-15 01:12:45,457 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 702 states. [2019-10-15 01:12:45,464 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 702 states to 702 states and 999 transitions. [2019-10-15 01:12:45,466 INFO L78 Accepts]: Start accepts. Automaton has 702 states and 999 transitions. Word has length 237 [2019-10-15 01:12:45,466 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:12:45,467 INFO L462 AbstractCegarLoop]: Abstraction has 702 states and 999 transitions. [2019-10-15 01:12:45,467 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-15 01:12:45,467 INFO L276 IsEmpty]: Start isEmpty. Operand 702 states and 999 transitions. [2019-10-15 01:12:45,473 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 239 [2019-10-15 01:12:45,474 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:12:45,474 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 01:12:45,475 INFO L410 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:12:45,475 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:12:45,475 INFO L82 PathProgramCache]: Analyzing trace with hash 280680863, now seen corresponding path program 1 times [2019-10-15 01:12:45,475 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:12:45,476 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1774141510] [2019-10-15 01:12:45,476 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:12:45,477 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:12:45,477 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:12:45,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:12:45,749 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2019-10-15 01:12:45,750 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1774141510] [2019-10-15 01:12:45,750 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:12:45,750 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-15 01:12:45,750 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [994037449] [2019-10-15 01:12:45,751 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-15 01:12:45,752 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:12:45,752 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-15 01:12:45,752 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 01:12:45,753 INFO L87 Difference]: Start difference. First operand 702 states and 999 transitions. Second operand 3 states. [2019-10-15 01:12:45,806 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:12:45,807 INFO L93 Difference]: Finished difference Result 1496 states and 2194 transitions. [2019-10-15 01:12:45,807 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-15 01:12:45,807 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 238 [2019-10-15 01:12:45,808 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:12:45,815 INFO L225 Difference]: With dead ends: 1496 [2019-10-15 01:12:45,815 INFO L226 Difference]: Without dead ends: 859 [2019-10-15 01:12:45,818 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 01:12:45,821 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 859 states. [2019-10-15 01:12:45,856 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 859 to 858. [2019-10-15 01:12:45,856 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 858 states. [2019-10-15 01:12:45,864 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 858 states to 858 states and 1263 transitions. [2019-10-15 01:12:45,864 INFO L78 Accepts]: Start accepts. Automaton has 858 states and 1263 transitions. Word has length 238 [2019-10-15 01:12:45,865 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:12:45,865 INFO L462 AbstractCegarLoop]: Abstraction has 858 states and 1263 transitions. [2019-10-15 01:12:45,866 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-15 01:12:45,866 INFO L276 IsEmpty]: Start isEmpty. Operand 858 states and 1263 transitions. [2019-10-15 01:12:45,876 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 240 [2019-10-15 01:12:45,877 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:12:45,877 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 01:12:45,878 INFO L410 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:12:45,878 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:12:45,879 INFO L82 PathProgramCache]: Analyzing trace with hash 407261724, now seen corresponding path program 1 times [2019-10-15 01:12:45,879 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:12:45,879 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1956270537] [2019-10-15 01:12:45,880 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:12:45,880 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:12:45,880 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:12:45,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:12:46,159 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2019-10-15 01:12:46,160 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1956270537] [2019-10-15 01:12:46,160 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:12:46,160 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-15 01:12:46,161 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1873145964] [2019-10-15 01:12:46,161 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-15 01:12:46,162 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:12:46,162 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-15 01:12:46,162 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 01:12:46,163 INFO L87 Difference]: Start difference. First operand 858 states and 1263 transitions. Second operand 3 states. [2019-10-15 01:12:46,227 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:12:46,228 INFO L93 Difference]: Finished difference Result 1952 states and 2966 transitions. [2019-10-15 01:12:46,228 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-15 01:12:46,228 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 239 [2019-10-15 01:12:46,229 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:12:46,237 INFO L225 Difference]: With dead ends: 1952 [2019-10-15 01:12:46,237 INFO L226 Difference]: Without dead ends: 1159 [2019-10-15 01:12:46,241 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 01:12:46,244 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1159 states. [2019-10-15 01:12:46,287 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1159 to 1158. [2019-10-15 01:12:46,287 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1158 states. [2019-10-15 01:12:46,294 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1158 states to 1158 states and 1767 transitions. [2019-10-15 01:12:46,295 INFO L78 Accepts]: Start accepts. Automaton has 1158 states and 1767 transitions. Word has length 239 [2019-10-15 01:12:46,296 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:12:46,296 INFO L462 AbstractCegarLoop]: Abstraction has 1158 states and 1767 transitions. [2019-10-15 01:12:46,296 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-15 01:12:46,296 INFO L276 IsEmpty]: Start isEmpty. Operand 1158 states and 1767 transitions. [2019-10-15 01:12:46,305 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 241 [2019-10-15 01:12:46,305 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:12:46,305 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 01:12:46,306 INFO L410 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:12:46,306 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:12:46,306 INFO L82 PathProgramCache]: Analyzing trace with hash 1311842207, now seen corresponding path program 1 times [2019-10-15 01:12:46,307 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:12:46,307 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [739442915] [2019-10-15 01:12:46,307 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:12:46,307 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:12:46,308 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:12:46,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:12:46,624 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2019-10-15 01:12:46,624 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [739442915] [2019-10-15 01:12:46,625 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:12:46,625 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-15 01:12:46,625 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [614547851] [2019-10-15 01:12:46,626 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-15 01:12:46,627 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:12:46,627 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-15 01:12:46,628 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 01:12:46,628 INFO L87 Difference]: Start difference. First operand 1158 states and 1767 transitions. Second operand 3 states. [2019-10-15 01:12:46,743 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:12:46,743 INFO L93 Difference]: Finished difference Result 2828 states and 4438 transitions. [2019-10-15 01:12:46,744 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-15 01:12:46,744 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 240 [2019-10-15 01:12:46,745 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:12:46,760 INFO L225 Difference]: With dead ends: 2828 [2019-10-15 01:12:46,760 INFO L226 Difference]: Without dead ends: 1735 [2019-10-15 01:12:46,768 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 01:12:46,772 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1735 states. [2019-10-15 01:12:46,902 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1735 to 1734. [2019-10-15 01:12:46,903 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1734 states. [2019-10-15 01:12:46,918 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1734 states to 1734 states and 2727 transitions. [2019-10-15 01:12:46,920 INFO L78 Accepts]: Start accepts. Automaton has 1734 states and 2727 transitions. Word has length 240 [2019-10-15 01:12:46,921 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:12:46,921 INFO L462 AbstractCegarLoop]: Abstraction has 1734 states and 2727 transitions. [2019-10-15 01:12:46,921 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-15 01:12:46,921 INFO L276 IsEmpty]: Start isEmpty. Operand 1734 states and 2727 transitions. [2019-10-15 01:12:46,936 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 243 [2019-10-15 01:12:46,937 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:12:46,937 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 01:12:46,938 INFO L410 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:12:46,938 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:12:46,938 INFO L82 PathProgramCache]: Analyzing trace with hash 689298150, now seen corresponding path program 1 times [2019-10-15 01:12:46,938 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:12:46,939 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1352694097] [2019-10-15 01:12:46,939 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:12:46,939 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:12:46,939 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:12:47,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:12:47,482 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2019-10-15 01:12:47,482 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1352694097] [2019-10-15 01:12:47,482 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:12:47,483 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2019-10-15 01:12:47,483 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1037692413] [2019-10-15 01:12:47,484 INFO L442 AbstractCegarLoop]: Interpolant automaton has 19 states [2019-10-15 01:12:47,484 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:12:47,484 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2019-10-15 01:12:47,484 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=300, Unknown=0, NotChecked=0, Total=342 [2019-10-15 01:12:47,485 INFO L87 Difference]: Start difference. First operand 1734 states and 2727 transitions. Second operand 19 states. [2019-10-15 01:12:52,871 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:12:52,871 INFO L93 Difference]: Finished difference Result 4365 states and 6833 transitions. [2019-10-15 01:12:52,872 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2019-10-15 01:12:52,872 INFO L78 Accepts]: Start accepts. Automaton has 19 states. Word has length 242 [2019-10-15 01:12:52,873 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:12:52,915 INFO L225 Difference]: With dead ends: 4365 [2019-10-15 01:12:52,916 INFO L226 Difference]: Without dead ends: 4077 [2019-10-15 01:12:52,921 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 708 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=287, Invalid=2683, Unknown=0, NotChecked=0, Total=2970 [2019-10-15 01:12:52,926 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4077 states. [2019-10-15 01:12:53,164 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4077 to 4040. [2019-10-15 01:12:53,164 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4040 states. [2019-10-15 01:12:53,207 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4040 states to 4040 states and 6381 transitions. [2019-10-15 01:12:53,209 INFO L78 Accepts]: Start accepts. Automaton has 4040 states and 6381 transitions. Word has length 242 [2019-10-15 01:12:53,212 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:12:53,212 INFO L462 AbstractCegarLoop]: Abstraction has 4040 states and 6381 transitions. [2019-10-15 01:12:53,212 INFO L463 AbstractCegarLoop]: Interpolant automaton has 19 states. [2019-10-15 01:12:53,213 INFO L276 IsEmpty]: Start isEmpty. Operand 4040 states and 6381 transitions. [2019-10-15 01:12:53,247 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 244 [2019-10-15 01:12:53,248 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:12:53,249 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 01:12:53,249 INFO L410 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:12:53,249 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:12:53,250 INFO L82 PathProgramCache]: Analyzing trace with hash -179274695, now seen corresponding path program 1 times [2019-10-15 01:12:53,250 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:12:53,251 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1193768053] [2019-10-15 01:12:53,251 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:12:53,251 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:12:53,252 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:12:53,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:12:53,602 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2019-10-15 01:12:53,603 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1193768053] [2019-10-15 01:12:53,604 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:12:53,604 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2019-10-15 01:12:53,605 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [406278587] [2019-10-15 01:12:53,606 INFO L442 AbstractCegarLoop]: Interpolant automaton has 13 states [2019-10-15 01:12:53,606 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:12:53,607 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2019-10-15 01:12:53,607 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=133, Unknown=0, NotChecked=0, Total=156 [2019-10-15 01:12:53,607 INFO L87 Difference]: Start difference. First operand 4040 states and 6381 transitions. Second operand 13 states. [2019-10-15 01:12:54,401 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:12:54,402 INFO L93 Difference]: Finished difference Result 5393 states and 8281 transitions. [2019-10-15 01:12:54,402 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2019-10-15 01:12:54,402 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 243 [2019-10-15 01:12:54,403 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:12:54,429 INFO L225 Difference]: With dead ends: 5393 [2019-10-15 01:12:54,430 INFO L226 Difference]: Without dead ends: 4174 [2019-10-15 01:12:54,436 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=73, Invalid=433, Unknown=0, NotChecked=0, Total=506 [2019-10-15 01:12:54,440 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4174 states. [2019-10-15 01:12:54,619 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4174 to 4174. [2019-10-15 01:12:54,619 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4174 states. [2019-10-15 01:12:54,635 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4174 states to 4174 states and 6598 transitions. [2019-10-15 01:12:54,636 INFO L78 Accepts]: Start accepts. Automaton has 4174 states and 6598 transitions. Word has length 243 [2019-10-15 01:12:54,636 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:12:54,636 INFO L462 AbstractCegarLoop]: Abstraction has 4174 states and 6598 transitions. [2019-10-15 01:12:54,637 INFO L463 AbstractCegarLoop]: Interpolant automaton has 13 states. [2019-10-15 01:12:54,637 INFO L276 IsEmpty]: Start isEmpty. Operand 4174 states and 6598 transitions. [2019-10-15 01:12:54,658 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 244 [2019-10-15 01:12:54,659 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:12:54,659 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 01:12:54,660 INFO L410 AbstractCegarLoop]: === Iteration 10 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:12:54,660 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:12:54,660 INFO L82 PathProgramCache]: Analyzing trace with hash 766207055, now seen corresponding path program 1 times [2019-10-15 01:12:54,660 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:12:54,661 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2096324467] [2019-10-15 01:12:54,661 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:12:54,661 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:12:54,661 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:12:54,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:12:54,980 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2019-10-15 01:12:54,980 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2096324467] [2019-10-15 01:12:54,981 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:12:54,981 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2019-10-15 01:12:54,981 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1753361066] [2019-10-15 01:12:54,982 INFO L442 AbstractCegarLoop]: Interpolant automaton has 15 states [2019-10-15 01:12:54,982 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:12:54,982 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2019-10-15 01:12:54,984 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=181, Unknown=0, NotChecked=0, Total=210 [2019-10-15 01:12:54,984 INFO L87 Difference]: Start difference. First operand 4174 states and 6598 transitions. Second operand 15 states. [2019-10-15 01:12:59,393 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:12:59,393 INFO L93 Difference]: Finished difference Result 5565 states and 8573 transitions. [2019-10-15 01:12:59,394 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2019-10-15 01:12:59,394 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 243 [2019-10-15 01:12:59,395 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:12:59,424 INFO L225 Difference]: With dead ends: 5565 [2019-10-15 01:12:59,425 INFO L226 Difference]: Without dead ends: 4292 [2019-10-15 01:12:59,434 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 513 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=229, Invalid=1933, Unknown=0, NotChecked=0, Total=2162 [2019-10-15 01:12:59,440 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4292 states. [2019-10-15 01:12:59,785 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4292 to 4255. [2019-10-15 01:12:59,786 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4255 states. [2019-10-15 01:12:59,803 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4255 states to 4255 states and 6736 transitions. [2019-10-15 01:12:59,804 INFO L78 Accepts]: Start accepts. Automaton has 4255 states and 6736 transitions. Word has length 243 [2019-10-15 01:12:59,805 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:12:59,805 INFO L462 AbstractCegarLoop]: Abstraction has 4255 states and 6736 transitions. [2019-10-15 01:12:59,805 INFO L463 AbstractCegarLoop]: Interpolant automaton has 15 states. [2019-10-15 01:12:59,805 INFO L276 IsEmpty]: Start isEmpty. Operand 4255 states and 6736 transitions. [2019-10-15 01:12:59,829 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 245 [2019-10-15 01:12:59,829 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:12:59,829 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 01:12:59,830 INFO L410 AbstractCegarLoop]: === Iteration 11 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:12:59,830 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:12:59,830 INFO L82 PathProgramCache]: Analyzing trace with hash -740936318, now seen corresponding path program 1 times [2019-10-15 01:12:59,830 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:12:59,831 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1708631053] [2019-10-15 01:12:59,831 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:12:59,831 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:12:59,831 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:12:59,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:13:00,200 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2019-10-15 01:13:00,201 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1708631053] [2019-10-15 01:13:00,201 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:13:00,201 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2019-10-15 01:13:00,201 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2109613649] [2019-10-15 01:13:00,202 INFO L442 AbstractCegarLoop]: Interpolant automaton has 15 states [2019-10-15 01:13:00,202 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:13:00,202 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2019-10-15 01:13:00,203 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=181, Unknown=0, NotChecked=0, Total=210 [2019-10-15 01:13:00,203 INFO L87 Difference]: Start difference. First operand 4255 states and 6736 transitions. Second operand 15 states. [2019-10-15 01:13:04,398 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:13:04,399 INFO L93 Difference]: Finished difference Result 5646 states and 8708 transitions. [2019-10-15 01:13:04,399 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2019-10-15 01:13:04,399 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 244 [2019-10-15 01:13:04,400 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:13:04,428 INFO L225 Difference]: With dead ends: 5646 [2019-10-15 01:13:04,428 INFO L226 Difference]: Without dead ends: 4292 [2019-10-15 01:13:04,436 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 [2019-10-15 01:13:04,441 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4292 states. [2019-10-15 01:13:04,606 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4292 to 4255. [2019-10-15 01:13:04,606 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4255 states. [2019-10-15 01:13:04,626 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4255 states to 4255 states and 6736 transitions. [2019-10-15 01:13:04,627 INFO L78 Accepts]: Start accepts. Automaton has 4255 states and 6736 transitions. Word has length 244 [2019-10-15 01:13:04,629 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:13:04,629 INFO L462 AbstractCegarLoop]: Abstraction has 4255 states and 6736 transitions. [2019-10-15 01:13:04,629 INFO L463 AbstractCegarLoop]: Interpolant automaton has 15 states. [2019-10-15 01:13:04,630 INFO L276 IsEmpty]: Start isEmpty. Operand 4255 states and 6736 transitions. [2019-10-15 01:13:04,653 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 247 [2019-10-15 01:13:04,653 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:13:04,654 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 01:13:04,654 INFO L410 AbstractCegarLoop]: === Iteration 12 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:13:04,655 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:13:04,655 INFO L82 PathProgramCache]: Analyzing trace with hash 1820254474, now seen corresponding path program 1 times [2019-10-15 01:13:04,655 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:13:04,655 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1009658328] [2019-10-15 01:13:04,655 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:13:04,656 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:13:04,656 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:13:04,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:13:04,814 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 49 trivial. 0 not checked. [2019-10-15 01:13:04,815 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1009658328] [2019-10-15 01:13:04,815 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:13:04,815 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-10-15 01:13:04,815 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [471109133] [2019-10-15 01:13:04,816 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-15 01:13:04,816 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:13:04,816 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-15 01:13:04,817 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-10-15 01:13:04,817 INFO L87 Difference]: Start difference. First operand 4255 states and 6736 transitions. Second operand 5 states. [2019-10-15 01:13:04,991 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:13:04,991 INFO L93 Difference]: Finished difference Result 5271 states and 8123 transitions. [2019-10-15 01:13:04,991 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-10-15 01:13:04,992 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 246 [2019-10-15 01:13:04,992 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:13:05,037 INFO L225 Difference]: With dead ends: 5271 [2019-10-15 01:13:05,037 INFO L226 Difference]: Without dead ends: 3870 [2019-10-15 01:13:05,044 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2019-10-15 01:13:05,049 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3870 states. [2019-10-15 01:13:05,600 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3870 to 3870. [2019-10-15 01:13:05,601 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3870 states. [2019-10-15 01:13:05,613 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3870 states to 3870 states and 6182 transitions. [2019-10-15 01:13:05,614 INFO L78 Accepts]: Start accepts. Automaton has 3870 states and 6182 transitions. Word has length 246 [2019-10-15 01:13:05,614 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:13:05,615 INFO L462 AbstractCegarLoop]: Abstraction has 3870 states and 6182 transitions. [2019-10-15 01:13:05,615 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-15 01:13:05,615 INFO L276 IsEmpty]: Start isEmpty. Operand 3870 states and 6182 transitions. [2019-10-15 01:13:05,633 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 244 [2019-10-15 01:13:05,633 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:13:05,634 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 01:13:05,634 INFO L410 AbstractCegarLoop]: === Iteration 13 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:13:05,634 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:13:05,635 INFO L82 PathProgramCache]: Analyzing trace with hash 381795678, now seen corresponding path program 1 times [2019-10-15 01:13:05,635 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:13:05,635 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [993024524] [2019-10-15 01:13:05,635 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:13:05,635 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:13:05,636 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:13:05,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:13:05,986 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2019-10-15 01:13:05,987 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [993024524] [2019-10-15 01:13:05,987 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:13:05,987 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2019-10-15 01:13:05,987 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1622878729] [2019-10-15 01:13:05,988 INFO L442 AbstractCegarLoop]: Interpolant automaton has 18 states [2019-10-15 01:13:05,988 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:13:05,988 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2019-10-15 01:13:05,988 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=273, Unknown=0, NotChecked=0, Total=306 [2019-10-15 01:13:05,989 INFO L87 Difference]: Start difference. First operand 3870 states and 6182 transitions. Second operand 18 states. [2019-10-15 01:13:06,543 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:13:06,543 INFO L93 Difference]: Finished difference Result 4916 states and 7637 transitions. [2019-10-15 01:13:06,544 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2019-10-15 01:13:06,544 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 243 [2019-10-15 01:13:06,544 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:13:06,570 INFO L225 Difference]: With dead ends: 4916 [2019-10-15 01:13:06,570 INFO L226 Difference]: Without dead ends: 3902 [2019-10-15 01:13:06,577 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=61, Invalid=539, Unknown=0, NotChecked=0, Total=600 [2019-10-15 01:13:06,582 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3902 states. [2019-10-15 01:13:06,716 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3902 to 3900. [2019-10-15 01:13:06,717 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3900 states. [2019-10-15 01:13:06,734 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3900 states to 3900 states and 6210 transitions. [2019-10-15 01:13:06,735 INFO L78 Accepts]: Start accepts. Automaton has 3900 states and 6210 transitions. Word has length 243 [2019-10-15 01:13:06,736 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:13:06,736 INFO L462 AbstractCegarLoop]: Abstraction has 3900 states and 6210 transitions. [2019-10-15 01:13:06,736 INFO L463 AbstractCegarLoop]: Interpolant automaton has 18 states. [2019-10-15 01:13:06,736 INFO L276 IsEmpty]: Start isEmpty. Operand 3900 states and 6210 transitions. [2019-10-15 01:13:06,759 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 244 [2019-10-15 01:13:06,759 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:13:06,761 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 01:13:06,761 INFO L410 AbstractCegarLoop]: === Iteration 14 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:13:06,761 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:13:06,761 INFO L82 PathProgramCache]: Analyzing trace with hash 632036331, now seen corresponding path program 1 times [2019-10-15 01:13:06,762 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:13:06,762 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [824365004] [2019-10-15 01:13:06,762 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:13:06,762 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:13:06,762 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:13:06,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:13:06,954 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2019-10-15 01:13:06,954 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [824365004] [2019-10-15 01:13:06,955 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:13:06,955 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-10-15 01:13:06,955 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [603179690] [2019-10-15 01:13:06,956 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-15 01:13:06,956 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:13:06,956 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-15 01:13:06,956 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-10-15 01:13:06,957 INFO L87 Difference]: Start difference. First operand 3900 states and 6210 transitions. Second operand 5 states. [2019-10-15 01:13:08,348 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:13:08,349 INFO L93 Difference]: Finished difference Result 7771 states and 12249 transitions. [2019-10-15 01:13:08,349 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-10-15 01:13:08,349 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 243 [2019-10-15 01:13:08,350 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:13:08,380 INFO L225 Difference]: With dead ends: 7771 [2019-10-15 01:13:08,381 INFO L226 Difference]: Without dead ends: 7056 [2019-10-15 01:13:08,388 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 [2019-10-15 01:13:08,396 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7056 states. [2019-10-15 01:13:08,640 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7056 to 7042. [2019-10-15 01:13:08,640 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7042 states. [2019-10-15 01:13:08,664 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7042 states to 7042 states and 11195 transitions. [2019-10-15 01:13:08,664 INFO L78 Accepts]: Start accepts. Automaton has 7042 states and 11195 transitions. Word has length 243 [2019-10-15 01:13:08,665 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:13:08,665 INFO L462 AbstractCegarLoop]: Abstraction has 7042 states and 11195 transitions. [2019-10-15 01:13:08,665 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-15 01:13:08,665 INFO L276 IsEmpty]: Start isEmpty. Operand 7042 states and 11195 transitions. [2019-10-15 01:13:08,713 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 244 [2019-10-15 01:13:08,713 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:13:08,713 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 01:13:08,714 INFO L410 AbstractCegarLoop]: === Iteration 15 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:13:08,714 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:13:08,714 INFO L82 PathProgramCache]: Analyzing trace with hash 1570567946, now seen corresponding path program 1 times [2019-10-15 01:13:08,714 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:13:08,714 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2074057371] [2019-10-15 01:13:08,715 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:13:08,715 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:13:08,715 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:13:08,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:13:08,927 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2019-10-15 01:13:08,927 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2074057371] [2019-10-15 01:13:08,928 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1130062279] [2019-10-15 01:13:08,928 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-15 01:13:09,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:13:09,711 INFO L256 TraceCheckSpWp]: Trace formula consists of 3245 conjuncts, 8 conjunts are in the unsatisfiable core [2019-10-15 01:13:09,733 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-15 01:13:09,968 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2019-10-15 01:13:09,968 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-15 01:13:10,449 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms