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 -i ../../../trunk/examples/svcomp/product-lines/email_spec4_product29.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-112bae1 [2019-09-08 05:16:22,936 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-09-08 05:16:22,938 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-09-08 05:16:22,950 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-09-08 05:16:22,950 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-09-08 05:16:22,951 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-09-08 05:16:22,953 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-09-08 05:16:22,955 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-09-08 05:16:22,956 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-09-08 05:16:22,957 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-09-08 05:16:22,958 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-09-08 05:16:22,959 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-09-08 05:16:22,960 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-09-08 05:16:22,961 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-09-08 05:16:22,962 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-09-08 05:16:22,963 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-09-08 05:16:22,964 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-09-08 05:16:22,964 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-09-08 05:16:22,966 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-09-08 05:16:22,968 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-09-08 05:16:22,970 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-09-08 05:16:22,971 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-09-08 05:16:22,972 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-09-08 05:16:22,973 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-09-08 05:16:22,975 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-09-08 05:16:22,975 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-09-08 05:16:22,975 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-09-08 05:16:22,976 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-09-08 05:16:22,977 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-09-08 05:16:22,978 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-09-08 05:16:22,978 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-09-08 05:16:22,979 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-09-08 05:16:22,980 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-09-08 05:16:22,980 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-09-08 05:16:22,981 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-09-08 05:16:22,982 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-09-08 05:16:22,982 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-09-08 05:16:22,983 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-09-08 05:16:22,983 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-09-08 05:16:22,984 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-09-08 05:16:22,985 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-09-08 05:16:22,985 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 [2019-09-08 05:16:23,000 INFO L113 SettingsManager]: Loading preferences was successful [2019-09-08 05:16:23,000 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-09-08 05:16:23,002 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-09-08 05:16:23,002 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-09-08 05:16:23,002 INFO L138 SettingsManager]: * Use SBE=true [2019-09-08 05:16:23,002 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-09-08 05:16:23,003 INFO L138 SettingsManager]: * sizeof long=4 [2019-09-08 05:16:23,003 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-09-08 05:16:23,003 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-09-08 05:16:23,003 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-09-08 05:16:23,003 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-09-08 05:16:23,003 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-09-08 05:16:23,004 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-09-08 05:16:23,004 INFO L138 SettingsManager]: * sizeof long double=12 [2019-09-08 05:16:23,004 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-09-08 05:16:23,004 INFO L138 SettingsManager]: * Use constant arrays=true [2019-09-08 05:16:23,004 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-09-08 05:16:23,005 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-09-08 05:16:23,005 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-09-08 05:16:23,005 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-09-08 05:16:23,005 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-09-08 05:16:23,005 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-09-08 05:16:23,006 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-09-08 05:16:23,006 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-09-08 05:16:23,006 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-09-08 05:16:23,006 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-09-08 05:16:23,006 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-09-08 05:16:23,007 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-09-08 05:16:23,007 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-09-08 05:16:23,036 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-09-08 05:16:23,049 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-09-08 05:16:23,052 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-09-08 05:16:23,054 INFO L271 PluginConnector]: Initializing CDTParser... [2019-09-08 05:16:23,054 INFO L275 PluginConnector]: CDTParser initialized [2019-09-08 05:16:23,055 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/email_spec4_product29.cil.c [2019-09-08 05:16:23,132 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5c10385b5/d1c6010fab984b6aae099fcd9375d1d6/FLAG349f5cfdb [2019-09-08 05:16:23,741 INFO L306 CDTParser]: Found 1 translation units. [2019-09-08 05:16:23,742 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/email_spec4_product29.cil.c [2019-09-08 05:16:23,777 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5c10385b5/d1c6010fab984b6aae099fcd9375d1d6/FLAG349f5cfdb [2019-09-08 05:16:23,945 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5c10385b5/d1c6010fab984b6aae099fcd9375d1d6 [2019-09-08 05:16:23,954 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-09-08 05:16:23,955 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-09-08 05:16:23,956 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-09-08 05:16:23,957 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-09-08 05:16:23,960 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-09-08 05:16:23,961 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.09 05:16:23" (1/1) ... [2019-09-08 05:16:23,964 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@50d0a3d6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 05:16:23, skipping insertion in model container [2019-09-08 05:16:23,964 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.09 05:16:23" (1/1) ... [2019-09-08 05:16:23,971 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-09-08 05:16:24,045 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-09-08 05:16:24,761 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-08 05:16:24,780 INFO L188 MainTranslator]: Completed pre-run [2019-09-08 05:16:24,888 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-08 05:16:24,993 INFO L192 MainTranslator]: Completed translation [2019-09-08 05:16:24,994 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 05:16:24 WrapperNode [2019-09-08 05:16:24,994 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-09-08 05:16:24,995 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-09-08 05:16:24,995 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-09-08 05:16:24,995 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-09-08 05:16:25,009 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 05:16:24" (1/1) ... [2019-09-08 05:16:25,009 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 05:16:24" (1/1) ... [2019-09-08 05:16:25,050 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 05:16:24" (1/1) ... [2019-09-08 05:16:25,051 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 05:16:24" (1/1) ... [2019-09-08 05:16:25,108 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 05:16:24" (1/1) ... [2019-09-08 05:16:25,132 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 05:16:24" (1/1) ... [2019-09-08 05:16:25,144 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 05:16:24" (1/1) ... [2019-09-08 05:16:25,169 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-09-08 05:16:25,170 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-09-08 05:16:25,174 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-09-08 05:16:25,174 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-09-08 05:16:25,176 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 05:16:24" (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 [2019-09-08 05:16:25,261 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-09-08 05:16:25,262 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-09-08 05:16:25,262 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-09-08 05:16:25,262 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob__wrappee__Base [2019-09-08 05:16:25,264 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob [2019-09-08 05:16:25,264 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh__wrappee__Base [2019-09-08 05:16:25,264 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh [2019-09-08 05:16:25,264 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck__wrappee__Base [2019-09-08 05:16:25,265 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck [2019-09-08 05:16:25,265 INFO L138 BoogieDeclarations]: Found implementation of procedure bobToRjh [2019-09-08 05:16:25,266 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhToBob [2019-09-08 05:16:25,266 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-09-08 05:16:25,267 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-09-08 05:16:25,267 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAdd [2019-09-08 05:16:25,268 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAdd [2019-09-08 05:16:25,268 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAddChuck [2019-09-08 05:16:25,271 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAddChuck [2019-09-08 05:16:25,271 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2019-09-08 05:16:25,271 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAddRjh [2019-09-08 05:16:25,271 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhDeletePrivateKey [2019-09-08 05:16:25,272 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyChange [2019-09-08 05:16:25,272 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyChange [2019-09-08 05:16:25,272 INFO L138 BoogieDeclarations]: Found implementation of procedure bobSetAddressBook [2019-09-08 05:16:25,272 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-09-08 05:16:25,272 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-09-08 05:16:25,273 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-09-08 05:16:25,273 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-09-08 05:16:25,273 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-09-08 05:16:25,273 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-09-08 05:16:25,274 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__Keys [2019-09-08 05:16:25,274 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__AddressBook [2019-09-08 05:16:25,274 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__Sign [2019-09-08 05:16:25,274 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail [2019-09-08 05:16:25,275 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable__wrappee__Keys [2019-09-08 05:16:25,275 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2019-09-08 05:16:25,275 INFO L138 BoogieDeclarations]: Found implementation of procedure cloneEmail [2019-09-08 05:16:25,275 INFO L138 BoogieDeclarations]: Found implementation of procedure createEmail [2019-09-08 05:16:25,275 INFO L138 BoogieDeclarations]: Found implementation of procedure initClient [2019-09-08 05:16:25,275 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientName [2019-09-08 05:16:25,276 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientName [2019-09-08 05:16:25,276 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientOutbuffer [2019-09-08 05:16:25,276 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientOutbuffer [2019-09-08 05:16:25,277 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookSize [2019-09-08 05:16:25,277 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookSize [2019-09-08 05:16:25,277 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientAddressBookEntry [2019-09-08 05:16:25,277 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAlias [2019-09-08 05:16:25,277 INFO L138 BoogieDeclarations]: Found implementation of procedure findClientAddressBookAlias [2019-09-08 05:16:25,277 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAlias [2019-09-08 05:16:25,278 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAddress [2019-09-08 05:16:25,278 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAddress [2019-09-08 05:16:25,278 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAutoResponse [2019-09-08 05:16:25,278 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAutoResponse [2019-09-08 05:16:25,278 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientPrivateKey [2019-09-08 05:16:25,279 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2019-09-08 05:16:25,279 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringSize [2019-09-08 05:16:25,279 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringSize [2019-09-08 05:16:25,279 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2019-09-08 05:16:25,280 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringUser [2019-09-08 05:16:25,280 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2019-09-08 05:16:25,280 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringPublicKey [2019-09-08 05:16:25,280 INFO L138 BoogieDeclarations]: Found implementation of procedure findPublicKey [2019-09-08 05:16:25,280 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2019-09-08 05:16:25,281 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientForwardReceiver [2019-09-08 05:16:25,281 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientForwardReceiver [2019-09-08 05:16:25,281 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientId [2019-09-08 05:16:25,281 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2019-09-08 05:16:25,281 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-09-08 05:16:25,281 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-09-08 05:16:25,282 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-09-08 05:16:25,282 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-09-08 05:16:25,282 INFO L138 BoogieDeclarations]: Found implementation of procedure prompt [2019-09-08 05:16:25,282 INFO L138 BoogieDeclarations]: Found implementation of procedure initEmail [2019-09-08 05:16:25,282 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailId [2019-09-08 05:16:25,283 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailId [2019-09-08 05:16:25,283 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2019-09-08 05:16:25,284 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2019-09-08 05:16:25,284 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2019-09-08 05:16:25,284 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2019-09-08 05:16:25,284 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSubject [2019-09-08 05:16:25,284 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSubject [2019-09-08 05:16:25,284 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailBody [2019-09-08 05:16:25,285 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailBody [2019-09-08 05:16:25,285 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2019-09-08 05:16:25,285 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2019-09-08 05:16:25,286 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2019-09-08 05:16:25,286 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2019-09-08 05:16:25,286 INFO L138 BoogieDeclarations]: Found implementation of procedure isSigned [2019-09-08 05:16:25,287 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSigned [2019-09-08 05:16:25,287 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSignKey [2019-09-08 05:16:25,287 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSignKey [2019-09-08 05:16:25,287 INFO L138 BoogieDeclarations]: Found implementation of procedure isVerified [2019-09-08 05:16:25,288 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSignatureVerified [2019-09-08 05:16:25,288 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-09-08 05:16:25,289 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-09-08 05:16:25,289 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__SignForward_spec__1 [2019-09-08 05:16:25,289 INFO L138 BoogieDeclarations]: Found implementation of procedure mail [2019-09-08 05:16:25,289 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__Keys [2019-09-08 05:16:25,290 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__Encrypt [2019-09-08 05:16:25,290 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__AddressBook [2019-09-08 05:16:25,290 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2019-09-08 05:16:25,290 INFO L138 BoogieDeclarations]: Found implementation of procedure deliver [2019-09-08 05:16:25,290 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Sign [2019-09-08 05:16:25,290 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Verify [2019-09-08 05:16:25,290 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming [2019-09-08 05:16:25,291 INFO L138 BoogieDeclarations]: Found implementation of procedure createClient [2019-09-08 05:16:25,291 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2019-09-08 05:16:25,291 INFO L138 BoogieDeclarations]: Found implementation of procedure queue [2019-09-08 05:16:25,291 INFO L138 BoogieDeclarations]: Found implementation of procedure is_queue_empty [2019-09-08 05:16:25,291 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_client [2019-09-08 05:16:25,291 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_email [2019-09-08 05:16:25,291 INFO L138 BoogieDeclarations]: Found implementation of procedure isKeyPairValid [2019-09-08 05:16:25,292 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2019-09-08 05:16:25,292 INFO L138 BoogieDeclarations]: Found implementation of procedure sendToAddressBook [2019-09-08 05:16:25,292 INFO L138 BoogieDeclarations]: Found implementation of procedure sign [2019-09-08 05:16:25,292 INFO L138 BoogieDeclarations]: Found implementation of procedure verify [2019-09-08 05:16:25,292 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-09-08 05:16:25,292 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-09-08 05:16:25,293 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-09-08 05:16:25,293 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2019-09-08 05:16:25,293 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookSize [2019-09-08 05:16:25,294 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAlias [2019-09-08 05:16:25,294 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAddress [2019-09-08 05:16:25,294 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2019-09-08 05:16:25,294 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2019-09-08 05:16:25,296 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringUser [2019-09-08 05:16:25,296 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2019-09-08 05:16:25,296 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringPublicKey [2019-09-08 05:16:25,296 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2019-09-08 05:16:25,296 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2019-09-08 05:16:25,296 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-09-08 05:16:25,296 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-09-08 05:16:25,297 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-09-08 05:16:25,297 INFO L130 BoogieDeclarations]: Found specification of procedure is_queue_empty [2019-09-08 05:16:25,297 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_client [2019-09-08 05:16:25,297 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_email [2019-09-08 05:16:25,298 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2019-09-08 05:16:25,298 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2019-09-08 05:16:25,298 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2019-09-08 05:16:25,298 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob [2019-09-08 05:16:25,299 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh [2019-09-08 05:16:25,302 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck [2019-09-08 05:16:25,306 INFO L130 BoogieDeclarations]: Found specification of procedure bobToRjh [2019-09-08 05:16:25,306 INFO L130 BoogieDeclarations]: Found specification of procedure rjhToBob [2019-09-08 05:16:25,307 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-09-08 05:16:25,315 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-09-08 05:16:25,315 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-09-08 05:16:25,316 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAdd [2019-09-08 05:16:25,316 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAddChuck [2019-09-08 05:16:25,316 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAdd [2019-09-08 05:16:25,316 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAddChuck [2019-09-08 05:16:25,316 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2019-09-08 05:16:25,316 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyChange [2019-09-08 05:16:25,317 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyChange [2019-09-08 05:16:25,317 INFO L130 BoogieDeclarations]: Found specification of procedure rjhDeletePrivateKey [2019-09-08 05:16:25,317 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAddRjh [2019-09-08 05:16:25,318 INFO L130 BoogieDeclarations]: Found specification of procedure bobSetAddressBook [2019-09-08 05:16:25,318 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob__wrappee__Base [2019-09-08 05:16:25,318 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh__wrappee__Base [2019-09-08 05:16:25,319 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck__wrappee__Base [2019-09-08 05:16:25,319 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-09-08 05:16:25,319 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-09-08 05:16:25,319 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-09-08 05:16:25,319 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-09-08 05:16:25,319 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-09-08 05:16:25,319 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-09-08 05:16:25,320 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-09-08 05:16:25,320 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-09-08 05:16:25,320 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-09-08 05:16:25,320 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-09-08 05:16:25,320 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-09-08 05:16:25,320 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-09-08 05:16:25,320 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-09-08 05:16:25,321 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-09-08 05:16:25,321 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-09-08 05:16:25,321 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-09-08 05:16:25,321 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-09-08 05:16:25,321 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailId [2019-09-08 05:16:25,321 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2019-09-08 05:16:25,321 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2019-09-08 05:16:25,321 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2019-09-08 05:16:25,322 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2019-09-08 05:16:25,322 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2019-09-08 05:16:25,322 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2019-09-08 05:16:25,322 INFO L130 BoogieDeclarations]: Found specification of procedure isSigned [2019-09-08 05:16:25,322 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSignKey [2019-09-08 05:16:25,322 INFO L130 BoogieDeclarations]: Found specification of procedure isVerified [2019-09-08 05:16:25,322 INFO L130 BoogieDeclarations]: Found specification of procedure printMail [2019-09-08 05:16:25,322 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2019-09-08 05:16:25,323 INFO L130 BoogieDeclarations]: Found specification of procedure createEmail [2019-09-08 05:16:25,323 INFO L130 BoogieDeclarations]: Found specification of procedure cloneEmail [2019-09-08 05:16:25,323 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__Keys [2019-09-08 05:16:25,323 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__AddressBook [2019-09-08 05:16:25,323 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__Sign [2019-09-08 05:16:25,323 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable__wrappee__Keys [2019-09-08 05:16:25,323 INFO L130 BoogieDeclarations]: Found specification of procedure initClient [2019-09-08 05:16:25,324 INFO L130 BoogieDeclarations]: Found specification of procedure getClientName [2019-09-08 05:16:25,324 INFO L130 BoogieDeclarations]: Found specification of procedure setClientName [2019-09-08 05:16:25,324 INFO L130 BoogieDeclarations]: Found specification of procedure getClientOutbuffer [2019-09-08 05:16:25,324 INFO L130 BoogieDeclarations]: Found specification of procedure setClientOutbuffer [2019-09-08 05:16:25,324 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookSize [2019-09-08 05:16:25,324 INFO L130 BoogieDeclarations]: Found specification of procedure createClientAddressBookEntry [2019-09-08 05:16:25,324 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAlias [2019-09-08 05:16:25,324 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAddress [2019-09-08 05:16:25,325 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAutoResponse [2019-09-08 05:16:25,325 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAutoResponse [2019-09-08 05:16:25,325 INFO L130 BoogieDeclarations]: Found specification of procedure getClientPrivateKey [2019-09-08 05:16:25,325 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringSize [2019-09-08 05:16:25,325 INFO L130 BoogieDeclarations]: Found specification of procedure getClientForwardReceiver [2019-09-08 05:16:25,325 INFO L130 BoogieDeclarations]: Found specification of procedure setClientForwardReceiver [2019-09-08 05:16:25,325 INFO L130 BoogieDeclarations]: Found specification of procedure getClientId [2019-09-08 05:16:25,326 INFO L130 BoogieDeclarations]: Found specification of procedure findPublicKey [2019-09-08 05:16:25,326 INFO L130 BoogieDeclarations]: Found specification of procedure findClientAddressBookAlias [2019-09-08 05:16:25,326 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringSize [2019-09-08 05:16:25,326 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-09-08 05:16:25,326 INFO L130 BoogieDeclarations]: Found specification of procedure prompt [2019-09-08 05:16:25,326 INFO L130 BoogieDeclarations]: Found specification of procedure initEmail [2019-09-08 05:16:25,326 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailId [2019-09-08 05:16:25,326 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSubject [2019-09-08 05:16:25,327 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSubject [2019-09-08 05:16:25,327 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailBody [2019-09-08 05:16:25,327 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailBody [2019-09-08 05:16:25,327 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2019-09-08 05:16:25,327 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2019-09-08 05:16:25,327 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSigned [2019-09-08 05:16:25,327 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSignKey [2019-09-08 05:16:25,328 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSignatureVerified [2019-09-08 05:16:25,328 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-09-08 05:16:25,328 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__SignForward_spec__1 [2019-09-08 05:16:25,328 INFO L130 BoogieDeclarations]: Found specification of procedure queue [2019-09-08 05:16:25,328 INFO L130 BoogieDeclarations]: Found specification of procedure mail [2019-09-08 05:16:25,328 INFO L130 BoogieDeclarations]: Found specification of procedure deliver [2019-09-08 05:16:25,328 INFO L130 BoogieDeclarations]: Found specification of procedure incoming [2019-09-08 05:16:25,328 INFO L130 BoogieDeclarations]: Found specification of procedure createClient [2019-09-08 05:16:25,329 INFO L130 BoogieDeclarations]: Found specification of procedure isKeyPairValid [2019-09-08 05:16:25,329 INFO L130 BoogieDeclarations]: Found specification of procedure sendToAddressBook [2019-09-08 05:16:25,329 INFO L130 BoogieDeclarations]: Found specification of procedure sign [2019-09-08 05:16:25,329 INFO L130 BoogieDeclarations]: Found specification of procedure verify [2019-09-08 05:16:25,329 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__Keys [2019-09-08 05:16:25,329 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__Encrypt [2019-09-08 05:16:25,329 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__AddressBook [2019-09-08 05:16:25,329 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Sign [2019-09-08 05:16:25,330 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Verify [2019-09-08 05:16:25,330 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-09-08 05:16:25,330 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-09-08 05:16:25,330 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-09-08 05:16:27,453 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-09-08 05:16:27,453 INFO L283 CfgBuilder]: Removed 4 assume(true) statements. [2019-09-08 05:16:27,456 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.09 05:16:27 BoogieIcfgContainer [2019-09-08 05:16:27,456 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-09-08 05:16:27,457 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-09-08 05:16:27,457 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-09-08 05:16:27,460 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-09-08 05:16:27,461 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.09 05:16:23" (1/3) ... [2019-09-08 05:16:27,462 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@735eccdc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.09 05:16:27, skipping insertion in model container [2019-09-08 05:16:27,462 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 05:16:24" (2/3) ... [2019-09-08 05:16:27,462 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@735eccdc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.09 05:16:27, skipping insertion in model container [2019-09-08 05:16:27,462 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.09 05:16:27" (3/3) ... [2019-09-08 05:16:27,464 INFO L109 eAbstractionObserver]: Analyzing ICFG email_spec4_product29.cil.c [2019-09-08 05:16:27,474 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-09-08 05:16:27,487 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-09-08 05:16:27,503 INFO L252 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-09-08 05:16:27,548 INFO L128 ementStrategyFactory]: Using default assertion order modulation [2019-09-08 05:16:27,549 INFO L377 AbstractCegarLoop]: Interprodecural is true [2019-09-08 05:16:27,549 INFO L378 AbstractCegarLoop]: Hoare is true [2019-09-08 05:16:27,549 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-09-08 05:16:27,549 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-09-08 05:16:27,551 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-09-08 05:16:27,554 INFO L382 AbstractCegarLoop]: Difference is false [2019-09-08 05:16:27,554 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-09-08 05:16:27,555 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-09-08 05:16:27,594 INFO L276 IsEmpty]: Start isEmpty. Operand 602 states. [2019-09-08 05:16:27,628 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 174 [2019-09-08 05:16:27,632 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 05:16:27,634 INFO L399 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-08 05:16:27,640 INFO L418 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 05:16:27,647 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 05:16:27,648 INFO L82 PathProgramCache]: Analyzing trace with hash 1933710850, now seen corresponding path program 1 times [2019-09-08 05:16:27,650 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 05:16:27,650 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 05:16:27,705 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 05:16:27,705 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 05:16:27,705 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 05:16:27,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 05:16:28,263 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2019-09-08 05:16:28,266 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-08 05:16:28,266 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-09-08 05:16:28,270 INFO L454 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-09-08 05:16:28,284 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-09-08 05:16:28,285 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-09-08 05:16:28,287 INFO L87 Difference]: Start difference. First operand 602 states. Second operand 2 states. [2019-09-08 05:16:28,396 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-08 05:16:28,399 INFO L93 Difference]: Finished difference Result 845 states and 1153 transitions. [2019-09-08 05:16:28,400 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-09-08 05:16:28,402 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 173 [2019-09-08 05:16:28,403 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-08 05:16:28,445 INFO L225 Difference]: With dead ends: 845 [2019-09-08 05:16:28,446 INFO L226 Difference]: Without dead ends: 545 [2019-09-08 05:16:28,459 INFO L628 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 [2019-09-08 05:16:28,490 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 545 states. [2019-09-08 05:16:28,666 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 545 to 545. [2019-09-08 05:16:28,667 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 545 states. [2019-09-08 05:16:28,676 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 545 states to 545 states and 748 transitions. [2019-09-08 05:16:28,679 INFO L78 Accepts]: Start accepts. Automaton has 545 states and 748 transitions. Word has length 173 [2019-09-08 05:16:28,682 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-08 05:16:28,682 INFO L475 AbstractCegarLoop]: Abstraction has 545 states and 748 transitions. [2019-09-08 05:16:28,682 INFO L476 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-09-08 05:16:28,682 INFO L276 IsEmpty]: Start isEmpty. Operand 545 states and 748 transitions. [2019-09-08 05:16:28,695 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 175 [2019-09-08 05:16:28,695 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 05:16:28,696 INFO L399 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-08 05:16:28,696 INFO L418 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 05:16:28,697 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 05:16:28,697 INFO L82 PathProgramCache]: Analyzing trace with hash 1848846547, now seen corresponding path program 1 times [2019-09-08 05:16:28,697 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 05:16:28,697 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 05:16:28,699 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 05:16:28,699 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 05:16:28,700 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 05:16:28,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 05:16:28,980 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2019-09-08 05:16:28,981 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-08 05:16:28,981 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-08 05:16:28,983 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-08 05:16:28,983 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-08 05:16:28,984 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-08 05:16:28,984 INFO L87 Difference]: Start difference. First operand 545 states and 748 transitions. Second operand 3 states. [2019-09-08 05:16:29,035 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-08 05:16:29,035 INFO L93 Difference]: Finished difference Result 828 states and 1118 transitions. [2019-09-08 05:16:29,036 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-08 05:16:29,036 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 174 [2019-09-08 05:16:29,039 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-08 05:16:29,043 INFO L225 Difference]: With dead ends: 828 [2019-09-08 05:16:29,044 INFO L226 Difference]: Without dead ends: 548 [2019-09-08 05:16:29,046 INFO L628 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 [2019-09-08 05:16:29,047 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 548 states. [2019-09-08 05:16:29,077 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 548 to 547. [2019-09-08 05:16:29,077 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 547 states. [2019-09-08 05:16:29,082 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 547 states to 547 states and 750 transitions. [2019-09-08 05:16:29,083 INFO L78 Accepts]: Start accepts. Automaton has 547 states and 750 transitions. Word has length 174 [2019-09-08 05:16:29,083 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-08 05:16:29,083 INFO L475 AbstractCegarLoop]: Abstraction has 547 states and 750 transitions. [2019-09-08 05:16:29,084 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-08 05:16:29,084 INFO L276 IsEmpty]: Start isEmpty. Operand 547 states and 750 transitions. [2019-09-08 05:16:29,087 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 181 [2019-09-08 05:16:29,087 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 05:16:29,087 INFO L399 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-08 05:16:29,087 INFO L418 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 05:16:29,088 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 05:16:29,088 INFO L82 PathProgramCache]: Analyzing trace with hash 1241537791, now seen corresponding path program 1 times [2019-09-08 05:16:29,088 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 05:16:29,088 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 05:16:29,089 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 05:16:29,089 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 05:16:29,089 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 05:16:29,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 05:16:29,315 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2019-09-08 05:16:29,315 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-08 05:16:29,315 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-08 05:16:29,316 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-08 05:16:29,318 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-08 05:16:29,318 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-08 05:16:29,319 INFO L87 Difference]: Start difference. First operand 547 states and 750 transitions. Second operand 3 states. [2019-09-08 05:16:29,362 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-08 05:16:29,363 INFO L93 Difference]: Finished difference Result 1070 states and 1498 transitions. [2019-09-08 05:16:29,363 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-08 05:16:29,363 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 180 [2019-09-08 05:16:29,365 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-08 05:16:29,370 INFO L225 Difference]: With dead ends: 1070 [2019-09-08 05:16:29,371 INFO L226 Difference]: Without dead ends: 588 [2019-09-08 05:16:29,372 INFO L628 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 [2019-09-08 05:16:29,374 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 588 states. [2019-09-08 05:16:29,439 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 588 to 587. [2019-09-08 05:16:29,439 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 587 states. [2019-09-08 05:16:29,443 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 587 states to 587 states and 819 transitions. [2019-09-08 05:16:29,445 INFO L78 Accepts]: Start accepts. Automaton has 587 states and 819 transitions. Word has length 180 [2019-09-08 05:16:29,446 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-08 05:16:29,446 INFO L475 AbstractCegarLoop]: Abstraction has 587 states and 819 transitions. [2019-09-08 05:16:29,446 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-08 05:16:29,446 INFO L276 IsEmpty]: Start isEmpty. Operand 587 states and 819 transitions. [2019-09-08 05:16:29,454 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 182 [2019-09-08 05:16:29,454 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 05:16:29,454 INFO L399 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-08 05:16:29,455 INFO L418 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 05:16:29,455 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 05:16:29,455 INFO L82 PathProgramCache]: Analyzing trace with hash -2124332308, now seen corresponding path program 1 times [2019-09-08 05:16:29,455 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 05:16:29,456 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 05:16:29,456 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 05:16:29,457 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 05:16:29,457 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 05:16:29,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 05:16:29,737 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2019-09-08 05:16:29,738 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-08 05:16:29,738 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-09-08 05:16:29,739 INFO L454 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-09-08 05:16:29,740 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-09-08 05:16:29,740 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-09-08 05:16:29,740 INFO L87 Difference]: Start difference. First operand 587 states and 819 transitions. Second operand 7 states. [2019-09-08 05:16:33,239 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-08 05:16:33,239 INFO L93 Difference]: Finished difference Result 1139 states and 1552 transitions. [2019-09-08 05:16:33,240 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2019-09-08 05:16:33,240 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 181 [2019-09-08 05:16:33,241 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-08 05:16:33,247 INFO L225 Difference]: With dead ends: 1139 [2019-09-08 05:16:33,247 INFO L226 Difference]: Without dead ends: 870 [2019-09-08 05:16:33,249 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=43, Invalid=113, Unknown=0, NotChecked=0, Total=156 [2019-09-08 05:16:33,251 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 870 states. [2019-09-08 05:16:33,318 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 870 to 861. [2019-09-08 05:16:33,318 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 861 states. [2019-09-08 05:16:33,325 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 861 states to 861 states and 1182 transitions. [2019-09-08 05:16:33,327 INFO L78 Accepts]: Start accepts. Automaton has 861 states and 1182 transitions. Word has length 181 [2019-09-08 05:16:33,328 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-08 05:16:33,328 INFO L475 AbstractCegarLoop]: Abstraction has 861 states and 1182 transitions. [2019-09-08 05:16:33,328 INFO L476 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-09-08 05:16:33,328 INFO L276 IsEmpty]: Start isEmpty. Operand 861 states and 1182 transitions. [2019-09-08 05:16:33,332 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2019-09-08 05:16:33,332 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 05:16:33,332 INFO L399 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-08 05:16:33,333 INFO L418 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 05:16:33,333 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 05:16:33,333 INFO L82 PathProgramCache]: Analyzing trace with hash 176199948, now seen corresponding path program 1 times [2019-09-08 05:16:33,333 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 05:16:33,333 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 05:16:33,334 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 05:16:33,334 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 05:16:33,335 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 05:16:33,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 05:16:33,749 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2019-09-08 05:16:33,749 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-08 05:16:33,750 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [20] imperfect sequences [] total 20 [2019-09-08 05:16:33,750 INFO L454 AbstractCegarLoop]: Interpolant automaton has 20 states [2019-09-08 05:16:33,750 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2019-09-08 05:16:33,752 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=343, Unknown=0, NotChecked=0, Total=380 [2019-09-08 05:16:33,752 INFO L87 Difference]: Start difference. First operand 861 states and 1182 transitions. Second operand 20 states. [2019-09-08 05:16:34,296 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-08 05:16:34,296 INFO L93 Difference]: Finished difference Result 1520 states and 2076 transitions. [2019-09-08 05:16:34,297 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2019-09-08 05:16:34,297 INFO L78 Accepts]: Start accepts. Automaton has 20 states. Word has length 182 [2019-09-08 05:16:34,297 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-08 05:16:34,304 INFO L225 Difference]: With dead ends: 1520 [2019-09-08 05:16:34,305 INFO L226 Difference]: Without dead ends: 971 [2019-09-08 05:16:34,310 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=69, Invalid=687, Unknown=0, NotChecked=0, Total=756 [2019-09-08 05:16:34,312 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 971 states. [2019-09-08 05:16:34,384 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 971 to 969. [2019-09-08 05:16:34,384 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 969 states. [2019-09-08 05:16:34,393 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 969 states to 969 states and 1333 transitions. [2019-09-08 05:16:34,394 INFO L78 Accepts]: Start accepts. Automaton has 969 states and 1333 transitions. Word has length 182 [2019-09-08 05:16:34,396 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-08 05:16:34,397 INFO L475 AbstractCegarLoop]: Abstraction has 969 states and 1333 transitions. [2019-09-08 05:16:34,397 INFO L476 AbstractCegarLoop]: Interpolant automaton has 20 states. [2019-09-08 05:16:34,397 INFO L276 IsEmpty]: Start isEmpty. Operand 969 states and 1333 transitions. [2019-09-08 05:16:34,401 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 192 [2019-09-08 05:16:34,401 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 05:16:34,402 INFO L399 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-08 05:16:34,402 INFO L418 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 05:16:34,402 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 05:16:34,402 INFO L82 PathProgramCache]: Analyzing trace with hash -427472189, now seen corresponding path program 1 times [2019-09-08 05:16:34,403 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 05:16:34,403 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 05:16:34,405 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 05:16:34,405 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 05:16:34,405 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 05:16:34,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 05:16:34,663 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2019-09-08 05:16:34,663 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-08 05:16:34,664 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-09-08 05:16:34,665 INFO L454 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-09-08 05:16:34,665 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-09-08 05:16:34,665 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2019-09-08 05:16:34,665 INFO L87 Difference]: Start difference. First operand 969 states and 1333 transitions. Second operand 8 states. [2019-09-08 05:16:36,040 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-08 05:16:36,041 INFO L93 Difference]: Finished difference Result 2122 states and 2888 transitions. [2019-09-08 05:16:36,041 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2019-09-08 05:16:36,042 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 191 [2019-09-08 05:16:36,044 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-08 05:16:36,070 INFO L225 Difference]: With dead ends: 2122 [2019-09-08 05:16:36,070 INFO L226 Difference]: Without dead ends: 1665 [2019-09-08 05:16:36,073 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=33, Invalid=123, Unknown=0, NotChecked=0, Total=156 [2019-09-08 05:16:36,076 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1665 states. [2019-09-08 05:16:36,168 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1665 to 1646. [2019-09-08 05:16:36,169 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1646 states. [2019-09-08 05:16:36,180 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1646 states to 1646 states and 2251 transitions. [2019-09-08 05:16:36,181 INFO L78 Accepts]: Start accepts. Automaton has 1646 states and 2251 transitions. Word has length 191 [2019-09-08 05:16:36,183 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-08 05:16:36,183 INFO L475 AbstractCegarLoop]: Abstraction has 1646 states and 2251 transitions. [2019-09-08 05:16:36,183 INFO L476 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-09-08 05:16:36,183 INFO L276 IsEmpty]: Start isEmpty. Operand 1646 states and 2251 transitions. [2019-09-08 05:16:36,189 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 193 [2019-09-08 05:16:36,189 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 05:16:36,189 INFO L399 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-08 05:16:36,190 INFO L418 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 05:16:36,190 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 05:16:36,190 INFO L82 PathProgramCache]: Analyzing trace with hash 304313995, now seen corresponding path program 1 times [2019-09-08 05:16:36,190 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 05:16:36,190 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 05:16:36,193 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 05:16:36,193 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 05:16:36,194 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 05:16:36,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 05:16:36,605 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2019-09-08 05:16:36,606 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-08 05:16:36,606 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2019-09-08 05:16:36,607 INFO L454 AbstractCegarLoop]: Interpolant automaton has 19 states [2019-09-08 05:16:36,608 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2019-09-08 05:16:36,608 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=307, Unknown=0, NotChecked=0, Total=342 [2019-09-08 05:16:36,608 INFO L87 Difference]: Start difference. First operand 1646 states and 2251 transitions. Second operand 19 states. [2019-09-08 05:16:37,757 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-08 05:16:37,757 INFO L93 Difference]: Finished difference Result 2287 states and 3115 transitions. [2019-09-08 05:16:37,757 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2019-09-08 05:16:37,757 INFO L78 Accepts]: Start accepts. Automaton has 19 states. Word has length 192 [2019-09-08 05:16:37,758 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-08 05:16:37,770 INFO L225 Difference]: With dead ends: 2287 [2019-09-08 05:16:37,770 INFO L226 Difference]: Without dead ends: 1645 [2019-09-08 05:16:37,774 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 112 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=115, Invalid=1075, Unknown=0, NotChecked=0, Total=1190 [2019-09-08 05:16:37,777 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1645 states. [2019-09-08 05:16:37,856 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1645 to 1644. [2019-09-08 05:16:37,857 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1644 states. [2019-09-08 05:16:37,868 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1644 states to 1644 states and 2246 transitions. [2019-09-08 05:16:37,868 INFO L78 Accepts]: Start accepts. Automaton has 1644 states and 2246 transitions. Word has length 192 [2019-09-08 05:16:37,869 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-08 05:16:37,869 INFO L475 AbstractCegarLoop]: Abstraction has 1644 states and 2246 transitions. [2019-09-08 05:16:37,869 INFO L476 AbstractCegarLoop]: Interpolant automaton has 19 states. [2019-09-08 05:16:37,869 INFO L276 IsEmpty]: Start isEmpty. Operand 1644 states and 2246 transitions. [2019-09-08 05:16:37,874 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 193 [2019-09-08 05:16:37,874 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 05:16:37,874 INFO L399 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-08 05:16:37,875 INFO L418 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 05:16:37,875 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 05:16:37,875 INFO L82 PathProgramCache]: Analyzing trace with hash 383856407, now seen corresponding path program 2 times [2019-09-08 05:16:37,875 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 05:16:37,875 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 05:16:37,876 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 05:16:37,876 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 05:16:37,876 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 05:16:37,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 05:16:38,060 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2019-09-08 05:16:38,061 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-08 05:16:38,061 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-09-08 05:16:38,078 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST1 [2019-09-08 05:16:38,411 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2019-09-08 05:16:38,412 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-09-08 05:16:38,420 INFO L256 TraceCheckSpWp]: Trace formula consists of 2125 conjuncts, 10 conjunts are in the unsatisfiable core [2019-09-08 05:16:38,437 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-09-08 05:16:38,726 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2019-09-08 05:16:38,799 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-09-08 05:16:38,800 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [11] total 17 [2019-09-08 05:16:38,801 INFO L454 AbstractCegarLoop]: Interpolant automaton has 17 states [2019-09-08 05:16:38,801 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2019-09-08 05:16:38,801 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=240, Unknown=0, NotChecked=0, Total=272 [2019-09-08 05:16:38,802 INFO L87 Difference]: Start difference. First operand 1644 states and 2246 transitions. Second operand 17 states. [2019-09-08 05:16:40,995 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-08 05:16:40,995 INFO L93 Difference]: Finished difference Result 4218 states and 5760 transitions. [2019-09-08 05:16:40,996 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2019-09-08 05:16:40,996 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 192 [2019-09-08 05:16:40,996 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-08 05:16:41,026 INFO L225 Difference]: With dead ends: 4218 [2019-09-08 05:16:41,026 INFO L226 Difference]: Without dead ends: 3072 [2019-09-08 05:16:41,035 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 233 GetRequests, 193 SyntacticMatches, 0 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 289 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=199, Invalid=1523, Unknown=0, NotChecked=0, Total=1722 [2019-09-08 05:16:41,041 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3072 states. [2019-09-08 05:16:41,210 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3072 to 3047. [2019-09-08 05:16:41,210 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3047 states. [2019-09-08 05:16:41,233 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3047 states to 3047 states and 4185 transitions. [2019-09-08 05:16:41,234 INFO L78 Accepts]: Start accepts. Automaton has 3047 states and 4185 transitions. Word has length 192 [2019-09-08 05:16:41,235 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-08 05:16:41,235 INFO L475 AbstractCegarLoop]: Abstraction has 3047 states and 4185 transitions. [2019-09-08 05:16:41,235 INFO L476 AbstractCegarLoop]: Interpolant automaton has 17 states. [2019-09-08 05:16:41,235 INFO L276 IsEmpty]: Start isEmpty. Operand 3047 states and 4185 transitions. [2019-09-08 05:16:41,255 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 324 [2019-09-08 05:16:41,255 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 05:16:41,256 INFO L399 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-08 05:16:41,256 INFO L418 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 05:16:41,256 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 05:16:41,257 INFO L82 PathProgramCache]: Analyzing trace with hash 1947596030, now seen corresponding path program 1 times [2019-09-08 05:16:41,257 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 05:16:41,257 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 05:16:41,258 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 05:16:41,258 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2019-09-08 05:16:41,258 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 05:16:41,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 05:16:41,842 INFO L134 CoverageAnalysis]: Checked inductivity of 124 backedges. 29 proven. 14 refuted. 0 times theorem prover too weak. 81 trivial. 0 not checked. [2019-09-08 05:16:41,842 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-08 05:16:41,842 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-09-08 05:16:41,853 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 05:16:42,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 05:16:42,347 INFO L256 TraceCheckSpWp]: Trace formula consists of 3412 conjuncts, 8 conjunts are in the unsatisfiable core [2019-09-08 05:16:42,358 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-09-08 05:16:42,638 INFO L134 CoverageAnalysis]: Checked inductivity of 124 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 100 trivial. 0 not checked. [2019-09-08 05:16:42,646 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-09-08 05:16:42,647 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [21] total 28 [2019-09-08 05:16:42,648 INFO L454 AbstractCegarLoop]: Interpolant automaton has 28 states [2019-09-08 05:16:42,649 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2019-09-08 05:16:42,650 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=64, Invalid=692, Unknown=0, NotChecked=0, Total=756 [2019-09-08 05:16:42,650 INFO L87 Difference]: Start difference. First operand 3047 states and 4185 transitions. Second operand 28 states. [2019-09-08 05:17:01,920 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-08 05:17:01,921 INFO L93 Difference]: Finished difference Result 26329 states and 37574 transitions. [2019-09-08 05:17:01,921 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 118 states. [2019-09-08 05:17:01,921 INFO L78 Accepts]: Start accepts. Automaton has 28 states. Word has length 323 [2019-09-08 05:17:01,922 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-08 05:17:02,087 INFO L225 Difference]: With dead ends: 26329 [2019-09-08 05:17:02,087 INFO L226 Difference]: Without dead ends: 23318 [2019-09-08 05:17:02,121 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 490 GetRequests, 349 SyntacticMatches, 0 SemanticMatches, 141 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6595 ImplicationChecksByTransitivity, 2.8s TimeCoverageRelationStatistics Valid=1235, Invalid=19071, Unknown=0, NotChecked=0, Total=20306 [2019-09-08 05:17:02,150 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23318 states. [2019-09-08 05:17:04,157 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23318 to 22715. [2019-09-08 05:17:04,158 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22715 states. [2019-09-08 05:17:04,255 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22715 states to 22715 states and 31982 transitions. [2019-09-08 05:17:04,257 INFO L78 Accepts]: Start accepts. Automaton has 22715 states and 31982 transitions. Word has length 323 [2019-09-08 05:17:04,259 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-08 05:17:04,259 INFO L475 AbstractCegarLoop]: Abstraction has 22715 states and 31982 transitions. [2019-09-08 05:17:04,259 INFO L476 AbstractCegarLoop]: Interpolant automaton has 28 states. [2019-09-08 05:17:04,259 INFO L276 IsEmpty]: Start isEmpty. Operand 22715 states and 31982 transitions. [2019-09-08 05:17:04,340 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 326 [2019-09-08 05:17:04,340 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 05:17:04,341 INFO L399 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-08 05:17:04,341 INFO L418 AbstractCegarLoop]: === Iteration 10 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 05:17:04,341 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 05:17:04,341 INFO L82 PathProgramCache]: Analyzing trace with hash 1428470390, now seen corresponding path program 1 times [2019-09-08 05:17:04,342 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 05:17:04,342 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 05:17:04,343 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 05:17:04,343 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 05:17:04,343 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 05:17:04,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 05:17:04,558 INFO L134 CoverageAnalysis]: Checked inductivity of 123 backedges. 26 proven. 0 refuted. 0 times theorem prover too weak. 97 trivial. 0 not checked. [2019-09-08 05:17:04,559 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-08 05:17:04,559 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-09-08 05:17:04,561 INFO L454 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-09-08 05:17:04,561 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-09-08 05:17:04,563 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-09-08 05:17:04,563 INFO L87 Difference]: Start difference. First operand 22715 states and 31982 transitions. Second operand 5 states. [2019-09-08 05:17:05,631 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-08 05:17:05,632 INFO L93 Difference]: Finished difference Result 44184 states and 61924 transitions. [2019-09-08 05:17:05,632 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-09-08 05:17:05,632 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 325 [2019-09-08 05:17:05,633 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-08 05:17:05,747 INFO L225 Difference]: With dead ends: 44184 [2019-09-08 05:17:05,748 INFO L226 Difference]: Without dead ends: 22665 [2019-09-08 05:17:05,823 INFO L628 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 [2019-09-08 05:17:05,850 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22665 states. [2019-09-08 05:17:06,838 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22665 to 22661. [2019-09-08 05:17:06,838 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22661 states. [2019-09-08 05:17:06,943 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22661 states to 22661 states and 31860 transitions. [2019-09-08 05:17:06,950 INFO L78 Accepts]: Start accepts. Automaton has 22661 states and 31860 transitions. Word has length 325 [2019-09-08 05:17:06,950 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-08 05:17:06,951 INFO L475 AbstractCegarLoop]: Abstraction has 22661 states and 31860 transitions. [2019-09-08 05:17:06,951 INFO L476 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-09-08 05:17:06,951 INFO L276 IsEmpty]: Start isEmpty. Operand 22661 states and 31860 transitions. [2019-09-08 05:17:07,030 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 327 [2019-09-08 05:17:07,030 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 05:17:07,031 INFO L399 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-08 05:17:07,031 INFO L418 AbstractCegarLoop]: === Iteration 11 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 05:17:07,032 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 05:17:07,032 INFO L82 PathProgramCache]: Analyzing trace with hash -1397911522, now seen corresponding path program 1 times [2019-09-08 05:17:07,032 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 05:17:07,032 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 05:17:07,034 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 05:17:07,034 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 05:17:07,034 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 05:17:07,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 05:17:07,646 INFO L134 CoverageAnalysis]: Checked inductivity of 123 backedges. 29 proven. 14 refuted. 0 times theorem prover too weak. 80 trivial. 0 not checked. [2019-09-08 05:17:07,647 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-08 05:17:07,647 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) [2019-09-08 05:17:07,661 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-09-08 05:17:08,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 05:17:08,105 INFO L256 TraceCheckSpWp]: Trace formula consists of 3413 conjuncts, 6 conjunts are in the unsatisfiable core [2019-09-08 05:17:08,116 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-09-08 05:17:08,283 INFO L134 CoverageAnalysis]: Checked inductivity of 123 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 99 trivial. 0 not checked. [2019-09-08 05:17:08,299 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-09-08 05:17:08,299 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [17] total 22 [2019-09-08 05:17:08,300 INFO L454 AbstractCegarLoop]: Interpolant automaton has 22 states [2019-09-08 05:17:08,301 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2019-09-08 05:17:08,301 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=417, Unknown=0, NotChecked=0, Total=462 [2019-09-08 05:17:08,301 INFO L87 Difference]: Start difference. First operand 22661 states and 31860 transitions. Second operand 22 states. [2019-09-08 05:17:13,247 WARN L188 SmtUtils]: Spent 212.00 ms on a formula simplification that was a NOOP. DAG size: 10 [2019-09-08 05:17:26,377 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-08 05:17:26,377 INFO L93 Difference]: Finished difference Result 73430 states and 104594 transitions. [2019-09-08 05:17:26,377 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 114 states. [2019-09-08 05:17:26,377 INFO L78 Accepts]: Start accepts. Automaton has 22 states. Word has length 326 [2019-09-08 05:17:26,378 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-08 05:17:26,596 INFO L225 Difference]: With dead ends: 73430 [2019-09-08 05:17:26,596 INFO L226 Difference]: Without dead ends: 49476 [2019-09-08 05:17:26,668 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 496 GetRequests, 366 SyntacticMatches, 0 SemanticMatches, 130 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5809 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=1121, Invalid=16171, Unknown=0, NotChecked=0, Total=17292 [2019-09-08 05:17:26,726 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49476 states. [2019-09-08 05:17:28,782 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49476 to 46043. [2019-09-08 05:17:28,783 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 46043 states. [2019-09-08 05:17:28,976 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46043 states to 46043 states and 64364 transitions. [2019-09-08 05:17:28,984 INFO L78 Accepts]: Start accepts. Automaton has 46043 states and 64364 transitions. Word has length 326 [2019-09-08 05:17:28,985 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-08 05:17:28,985 INFO L475 AbstractCegarLoop]: Abstraction has 46043 states and 64364 transitions. [2019-09-08 05:17:28,985 INFO L476 AbstractCegarLoop]: Interpolant automaton has 22 states. [2019-09-08 05:17:28,985 INFO L276 IsEmpty]: Start isEmpty. Operand 46043 states and 64364 transitions. [2019-09-08 05:17:29,120 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 327 [2019-09-08 05:17:29,120 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 05:17:29,121 INFO L399 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-08 05:17:29,121 INFO L418 AbstractCegarLoop]: === Iteration 12 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 05:17:29,122 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 05:17:29,122 INFO L82 PathProgramCache]: Analyzing trace with hash 627376371, now seen corresponding path program 1 times [2019-09-08 05:17:29,122 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 05:17:29,122 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 05:17:29,123 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 05:17:29,123 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 05:17:29,123 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 05:17:29,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 05:17:29,387 INFO L134 CoverageAnalysis]: Checked inductivity of 122 backedges. 26 proven. 3 refuted. 0 times theorem prover too weak. 93 trivial. 0 not checked. [2019-09-08 05:17:29,388 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-08 05:17:29,388 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) [2019-09-08 05:17:29,411 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-09-08 05:17:29,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 05:17:29,889 INFO L256 TraceCheckSpWp]: Trace formula consists of 3413 conjuncts, 8 conjunts are in the unsatisfiable core [2019-09-08 05:17:29,902 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-09-08 05:17:30,135 INFO L134 CoverageAnalysis]: Checked inductivity of 122 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 106 trivial. 0 not checked. [2019-09-08 05:17:30,142 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-09-08 05:17:30,142 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [13] total 20 [2019-09-08 05:17:30,143 INFO L454 AbstractCegarLoop]: Interpolant automaton has 20 states [2019-09-08 05:17:30,143 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2019-09-08 05:17:30,144 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=337, Unknown=0, NotChecked=0, Total=380 [2019-09-08 05:17:30,144 INFO L87 Difference]: Start difference. First operand 46043 states and 64364 transitions. Second operand 20 states. [2019-09-08 05:17:34,271 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-08 05:17:34,272 INFO L93 Difference]: Finished difference Result 96927 states and 137636 transitions. [2019-09-08 05:17:34,272 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2019-09-08 05:17:34,272 INFO L78 Accepts]: Start accepts. Automaton has 20 states. Word has length 326 [2019-09-08 05:17:34,272 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-08 05:17:34,545 INFO L225 Difference]: With dead ends: 96927 [2019-09-08 05:17:34,545 INFO L226 Difference]: Without dead ends: 49273 [2019-09-08 05:17:34,669 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 361 GetRequests, 324 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 145 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=173, Invalid=1309, Unknown=0, NotChecked=0, Total=1482 [2019-09-08 05:17:34,725 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49273 states. [2019-09-08 05:17:38,341 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49273 to 48757. [2019-09-08 05:17:38,341 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 48757 states. [2019-09-08 05:17:38,504 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48757 states to 48757 states and 68775 transitions. [2019-09-08 05:17:38,516 INFO L78 Accepts]: Start accepts. Automaton has 48757 states and 68775 transitions. Word has length 326 [2019-09-08 05:17:38,517 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-08 05:17:38,517 INFO L475 AbstractCegarLoop]: Abstraction has 48757 states and 68775 transitions. [2019-09-08 05:17:38,517 INFO L476 AbstractCegarLoop]: Interpolant automaton has 20 states. [2019-09-08 05:17:38,517 INFO L276 IsEmpty]: Start isEmpty. Operand 48757 states and 68775 transitions. [2019-09-08 05:17:38,601 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 331 [2019-09-08 05:17:38,601 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 05:17:38,602 INFO L399 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-08 05:17:38,602 INFO L418 AbstractCegarLoop]: === Iteration 13 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 05:17:38,603 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 05:17:38,603 INFO L82 PathProgramCache]: Analyzing trace with hash -1204249305, now seen corresponding path program 1 times [2019-09-08 05:17:38,603 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 05:17:38,603 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 05:17:38,604 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 05:17:38,604 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 05:17:38,604 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 05:17:38,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 05:17:38,979 INFO L134 CoverageAnalysis]: Checked inductivity of 126 backedges. 29 proven. 4 refuted. 0 times theorem prover too weak. 93 trivial. 0 not checked. [2019-09-08 05:17:38,981 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-08 05:17:38,981 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) [2019-09-08 05:17:39,004 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY Waiting until toolchain timeout for monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-09-08 05:17:39,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 05:17:39,462 INFO L256 TraceCheckSpWp]: Trace formula consists of 3419 conjuncts, 8 conjunts are in the unsatisfiable core [2019-09-08 05:17:39,471 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-09-08 05:17:39,690 INFO L134 CoverageAnalysis]: Checked inductivity of 126 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 109 trivial. 0 not checked. [2019-09-08 05:17:39,697 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-09-08 05:17:39,697 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [18] total 25 [2019-09-08 05:17:39,698 INFO L454 AbstractCegarLoop]: Interpolant automaton has 25 states [2019-09-08 05:17:39,698 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2019-09-08 05:17:39,698 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=547, Unknown=0, NotChecked=0, Total=600 [2019-09-08 05:17:39,699 INFO L87 Difference]: Start difference. First operand 48757 states and 68775 transitions. Second operand 25 states. [2019-09-08 05:17:44,003 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-08 05:17:44,004 INFO L93 Difference]: Finished difference Result 105303 states and 153233 transitions. [2019-09-08 05:17:44,004 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2019-09-08 05:17:44,004 INFO L78 Accepts]: Start accepts. Automaton has 25 states. Word has length 330 [2019-09-08 05:17:44,004 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-08 05:17:44,304 INFO L225 Difference]: With dead ends: 105303 [2019-09-08 05:17:44,305 INFO L226 Difference]: Without dead ends: 54141 [2019-09-08 05:17:44,448 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 371 GetRequests, 325 SyntacticMatches, 0 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 246 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=166, Invalid=2090, Unknown=0, NotChecked=0, Total=2256 [2019-09-08 05:17:44,503 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54141 states. [2019-09-08 05:17:48,162 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54141 to 53829. [2019-09-08 05:17:48,163 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 53829 states. [2019-09-08 05:17:48,396 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53829 states to 53829 states and 76676 transitions. [2019-09-08 05:17:48,408 INFO L78 Accepts]: Start accepts. Automaton has 53829 states and 76676 transitions. Word has length 330 [2019-09-08 05:17:48,408 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-08 05:17:48,409 INFO L475 AbstractCegarLoop]: Abstraction has 53829 states and 76676 transitions. [2019-09-08 05:17:48,409 INFO L476 AbstractCegarLoop]: Interpolant automaton has 25 states. [2019-09-08 05:17:48,409 INFO L276 IsEmpty]: Start isEmpty. Operand 53829 states and 76676 transitions. [2019-09-08 05:17:48,473 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 330 [2019-09-08 05:17:48,473 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 05:17:48,473 INFO L399 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-08 05:17:48,474 INFO L418 AbstractCegarLoop]: === Iteration 14 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 05:17:48,474 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 05:17:48,474 INFO L82 PathProgramCache]: Analyzing trace with hash 931539644, now seen corresponding path program 1 times [2019-09-08 05:17:48,474 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 05:17:48,474 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 05:17:48,475 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 05:17:48,475 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 05:17:48,475 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 05:17:48,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 05:17:48,651 INFO L134 CoverageAnalysis]: Checked inductivity of 125 backedges. 26 proven. 2 refuted. 0 times theorem prover too weak. 97 trivial. 0 not checked. [2019-09-08 05:17:48,652 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-08 05:17:48,652 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) [2019-09-08 05:17:48,667 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY Waiting until toolchain timeout for monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-09-08 05:17:49,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 05:17:49,157 INFO L256 TraceCheckSpWp]: Trace formula consists of 3418 conjuncts, 6 conjunts are in the unsatisfiable core [2019-09-08 05:17:49,168 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-09-08 05:17:49,296 INFO L134 CoverageAnalysis]: Checked inductivity of 125 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 108 trivial. 0 not checked. [2019-09-08 05:17:49,313 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-09-08 05:17:49,313 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [5] total 10 [2019-09-08 05:17:49,315 INFO L454 AbstractCegarLoop]: Interpolant automaton has 10 states [2019-09-08 05:17:49,315 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2019-09-08 05:17:49,316 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2019-09-08 05:17:49,316 INFO L87 Difference]: Start difference. First operand 53829 states and 76676 transitions. Second operand 10 states. [2019-09-08 05:17:55,736 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-08 05:17:55,737 INFO L93 Difference]: Finished difference Result 113867 states and 165043 transitions. [2019-09-08 05:17:55,737 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2019-09-08 05:17:55,737 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 329 [2019-09-08 05:17:55,738 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-08 05:17:56,099 INFO L225 Difference]: With dead ends: 113867 [2019-09-08 05:17:56,100 INFO L226 Difference]: Without dead ends: 60127 [2019-09-08 05:17:56,286 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 351 GetRequests, 333 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=81, Invalid=299, Unknown=0, NotChecked=0, Total=380 [2019-09-08 05:17:56,365 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60127 states. [2019-09-08 05:18:00,293 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60127 to 54361. [2019-09-08 05:18:00,293 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 54361 states. [2019-09-08 05:18:00,528 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54361 states to 54361 states and 79089 transitions. [2019-09-08 05:18:00,541 INFO L78 Accepts]: Start accepts. Automaton has 54361 states and 79089 transitions. Word has length 329 [2019-09-08 05:18:00,541 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-08 05:18:00,541 INFO L475 AbstractCegarLoop]: Abstraction has 54361 states and 79089 transitions. [2019-09-08 05:18:00,541 INFO L476 AbstractCegarLoop]: Interpolant automaton has 10 states. [2019-09-08 05:18:00,541 INFO L276 IsEmpty]: Start isEmpty. Operand 54361 states and 79089 transitions. [2019-09-08 05:18:00,587 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 330 [2019-09-08 05:18:00,587 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 05:18:00,587 INFO L399 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-08 05:18:00,588 INFO L418 AbstractCegarLoop]: === Iteration 15 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 05:18:00,588 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 05:18:00,588 INFO L82 PathProgramCache]: Analyzing trace with hash -1493970281, now seen corresponding path program 1 times [2019-09-08 05:18:00,588 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 05:18:00,589 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 05:18:00,589 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 05:18:00,589 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 05:18:00,590 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 05:18:00,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 05:18:00,954 INFO L134 CoverageAnalysis]: Checked inductivity of 125 backedges. 29 proven. 14 refuted. 0 times theorem prover too weak. 82 trivial. 0 not checked. [2019-09-08 05:18:00,955 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-08 05:18:00,955 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-09-08 05:18:00,971 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 05:18:01,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 05:18:01,452 INFO L256 TraceCheckSpWp]: Trace formula consists of 3418 conjuncts, 6 conjunts are in the unsatisfiable core [2019-09-08 05:18:01,464 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-09-08 05:18:01,643 INFO L134 CoverageAnalysis]: Checked inductivity of 125 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 107 trivial. 0 not checked. [2019-09-08 05:18:01,650 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-09-08 05:18:01,650 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [17] total 22 [2019-09-08 05:18:01,651 INFO L454 AbstractCegarLoop]: Interpolant automaton has 22 states [2019-09-08 05:18:01,651 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2019-09-08 05:18:01,651 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=417, Unknown=0, NotChecked=0, Total=462 [2019-09-08 05:18:01,651 INFO L87 Difference]: Start difference. First operand 54361 states and 79089 transitions. Second operand 22 states. [2019-09-08 05:18:20,944 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-08 05:18:20,944 INFO L93 Difference]: Finished difference Result 147363 states and 217707 transitions. [2019-09-08 05:18:20,944 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 114 states. [2019-09-08 05:18:20,945 INFO L78 Accepts]: Start accepts. Automaton has 22 states. Word has length 329 [2019-09-08 05:18:20,945 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-08 05:18:21,399 INFO L225 Difference]: With dead ends: 147363 [2019-09-08 05:18:21,400 INFO L226 Difference]: Without dead ends: 90713 [2019-09-08 05:18:21,605 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 502 GetRequests, 372 SyntacticMatches, 0 SemanticMatches, 130 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5763 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=1121, Invalid=16171, Unknown=0, NotChecked=0, Total=17292 [2019-09-08 05:18:21,680 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 90713 states. [2019-09-08 05:18:24,617 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 90713 to 85001. [2019-09-08 05:18:24,617 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 85001 states. [2019-09-08 05:18:24,992 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 85001 states to 85001 states and 123496 transitions. [2019-09-08 05:18:25,006 INFO L78 Accepts]: Start accepts. Automaton has 85001 states and 123496 transitions. Word has length 329 [2019-09-08 05:18:25,006 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-08 05:18:25,007 INFO L475 AbstractCegarLoop]: Abstraction has 85001 states and 123496 transitions. [2019-09-08 05:18:25,007 INFO L476 AbstractCegarLoop]: Interpolant automaton has 22 states. [2019-09-08 05:18:25,007 INFO L276 IsEmpty]: Start isEmpty. Operand 85001 states and 123496 transitions. [2019-09-08 05:18:25,088 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 331 [2019-09-08 05:18:25,089 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 05:18:25,089 INFO L399 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-08 05:18:25,089 INFO L418 AbstractCegarLoop]: === Iteration 16 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 05:18:25,090 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 05:18:25,090 INFO L82 PathProgramCache]: Analyzing trace with hash 898930826, now seen corresponding path program 1 times [2019-09-08 05:18:25,090 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 05:18:25,090 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 05:18:25,091 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 05:18:25,091 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 05:18:25,091 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 05:18:28,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 05:18:28,252 INFO L134 CoverageAnalysis]: Checked inductivity of 124 backedges. 26 proven. 0 refuted. 0 times theorem prover too weak. 98 trivial. 0 not checked. [2019-09-08 05:18:28,253 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-08 05:18:28,253 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2019-09-08 05:18:28,253 INFO L454 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-09-08 05:18:28,254 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-09-08 05:18:28,254 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2019-09-08 05:18:28,254 INFO L87 Difference]: Start difference. First operand 85001 states and 123496 transitions. Second operand 9 states. [2019-09-08 05:18:46,487 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-08 05:18:46,487 INFO L93 Difference]: Finished difference Result 400606 states and 700875 transitions. [2019-09-08 05:18:46,488 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2019-09-08 05:18:46,488 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 330 [2019-09-08 05:18:46,488 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-08 05:18:48,249 INFO L225 Difference]: With dead ends: 400606 [2019-09-08 05:18:48,249 INFO L226 Difference]: Without dead ends: 316599 [2019-09-08 05:18:48,677 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 68 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=93, Invalid=369, Unknown=0, NotChecked=0, Total=462 [2019-09-08 05:18:48,932 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 316599 states. [2019-09-08 05:19:06,527 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 316599 to 293753. [2019-09-08 05:19:06,527 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 293753 states. [2019-09-08 05:19:16,067 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 293753 states to 293753 states and 516207 transitions. [2019-09-08 05:19:16,097 INFO L78 Accepts]: Start accepts. Automaton has 293753 states and 516207 transitions. Word has length 330 [2019-09-08 05:19:16,098 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-08 05:19:16,098 INFO L475 AbstractCegarLoop]: Abstraction has 293753 states and 516207 transitions. [2019-09-08 05:19:16,098 INFO L476 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-09-08 05:19:16,098 INFO L276 IsEmpty]: Start isEmpty. Operand 293753 states and 516207 transitions. [2019-09-08 05:19:16,321 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 332 [2019-09-08 05:19:16,321 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 05:19:16,322 INFO L399 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-08 05:19:16,322 INFO L418 AbstractCegarLoop]: === Iteration 17 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 05:19:16,322 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 05:19:16,322 INFO L82 PathProgramCache]: Analyzing trace with hash -548498339, now seen corresponding path program 1 times [2019-09-08 05:19:16,322 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 05:19:16,322 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 05:19:16,323 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 05:19:16,323 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 05:19:16,323 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 05:19:16,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 05:19:16,809 INFO L134 CoverageAnalysis]: Checked inductivity of 124 backedges. 26 proven. 0 refuted. 0 times theorem prover too weak. 98 trivial. 0 not checked. [2019-09-08 05:19:16,810 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-08 05:19:16,810 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2019-09-08 05:19:16,811 INFO L454 AbstractCegarLoop]: Interpolant automaton has 26 states [2019-09-08 05:19:16,811 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2019-09-08 05:19:16,811 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=601, Unknown=0, NotChecked=0, Total=650 [2019-09-08 05:19:16,812 INFO L87 Difference]: Start difference. First operand 293753 states and 516207 transitions. Second operand 26 states. [2019-09-08 05:19:53,371 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-08 05:19:53,371 INFO L93 Difference]: Finished difference Result 665649 states and 1357178 transitions. [2019-09-08 05:19:53,371 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2019-09-08 05:19:53,372 INFO L78 Accepts]: Start accepts. Automaton has 26 states. Word has length 331 [2019-09-08 05:19:53,372 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-08 05:19:55,167 INFO L225 Difference]: With dead ends: 665649 [2019-09-08 05:19:55,167 INFO L226 Difference]: Without dead ends: 348051 [2019-09-08 05:20:05,268 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 55 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=93, Invalid=1239, Unknown=0, NotChecked=0, Total=1332 [2019-09-08 05:20:05,516 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 348051 states. [2019-09-08 05:20:24,648 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 348051 to 327151. [2019-09-08 05:20:24,648 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 327151 states. [2019-09-08 05:20:28,081 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 327151 states to 327151 states and 553232 transitions. [2019-09-08 05:20:28,141 INFO L78 Accepts]: Start accepts. Automaton has 327151 states and 553232 transitions. Word has length 331 [2019-09-08 05:20:28,142 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-08 05:20:28,142 INFO L475 AbstractCegarLoop]: Abstraction has 327151 states and 553232 transitions. [2019-09-08 05:20:28,142 INFO L476 AbstractCegarLoop]: Interpolant automaton has 26 states. [2019-09-08 05:20:28,142 INFO L276 IsEmpty]: Start isEmpty. Operand 327151 states and 553232 transitions. [2019-09-08 05:20:28,304 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 337 [2019-09-08 05:20:28,304 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 05:20:28,305 INFO L399 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-08 05:20:28,305 INFO L418 AbstractCegarLoop]: === Iteration 18 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 05:20:28,305 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 05:20:28,305 INFO L82 PathProgramCache]: Analyzing trace with hash 1900534824, now seen corresponding path program 1 times [2019-09-08 05:20:28,305 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 05:20:28,306 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 05:20:28,306 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 05:20:28,306 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 05:20:28,306 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 05:20:28,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 05:20:28,519 INFO L134 CoverageAnalysis]: Checked inductivity of 124 backedges. 26 proven. 0 refuted. 0 times theorem prover too weak. 98 trivial. 0 not checked. [2019-09-08 05:20:28,519 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-08 05:20:28,519 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2019-09-08 05:20:28,520 INFO L454 AbstractCegarLoop]: Interpolant automaton has 10 states [2019-09-08 05:20:28,520 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2019-09-08 05:20:28,521 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2019-09-08 05:20:28,521 INFO L87 Difference]: Start difference. First operand 327151 states and 553232 transitions. Second operand 10 states. [2019-09-08 05:21:04,122 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-08 05:21:04,123 INFO L93 Difference]: Finished difference Result 661615 states and 1181214 transitions. [2019-09-08 05:21:04,123 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2019-09-08 05:21:04,123 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 336 [2019-09-08 05:21:04,123 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-08 05:21:05,956 INFO L225 Difference]: With dead ends: 661615 [2019-09-08 05:21:05,957 INFO L226 Difference]: Without dead ends: 340111 [2019-09-08 05:21:07,785 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2019-09-08 05:21:08,044 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 340111 states. [2019-09-08 05:21:34,649 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 340111 to 329743. [2019-09-08 05:21:34,650 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 329743 states. [2019-09-08 05:21:38,206 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 329743 states to 329743 states and 556256 transitions. [2019-09-08 05:21:38,259 INFO L78 Accepts]: Start accepts. Automaton has 329743 states and 556256 transitions. Word has length 336 [2019-09-08 05:21:38,260 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-08 05:21:38,260 INFO L475 AbstractCegarLoop]: Abstraction has 329743 states and 556256 transitions. [2019-09-08 05:21:38,260 INFO L476 AbstractCegarLoop]: Interpolant automaton has 10 states. [2019-09-08 05:21:38,260 INFO L276 IsEmpty]: Start isEmpty. Operand 329743 states and 556256 transitions. [2019-09-08 05:21:38,414 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 354 [2019-09-08 05:21:38,414 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 05:21:38,415 INFO L399 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-08 05:21:38,415 INFO L418 AbstractCegarLoop]: === Iteration 19 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 05:21:38,415 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 05:21:38,415 INFO L82 PathProgramCache]: Analyzing trace with hash 1746973154, now seen corresponding path program 1 times [2019-09-08 05:21:38,415 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 05:21:38,415 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 05:21:38,416 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 05:21:38,416 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 05:21:38,416 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 05:21:38,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 05:21:38,605 INFO L134 CoverageAnalysis]: Checked inductivity of 132 backedges. 26 proven. 2 refuted. 0 times theorem prover too weak. 104 trivial. 0 not checked. [2019-09-08 05:21:38,606 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-08 05:21:38,606 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-09-08 05:21:38,617 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 05:21:40,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 05:21:40,812 INFO L256 TraceCheckSpWp]: Trace formula consists of 3496 conjuncts, 3 conjunts are in the unsatisfiable core [2019-09-08 05:21:40,822 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-09-08 05:21:40,915 INFO L134 CoverageAnalysis]: Checked inductivity of 132 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 130 trivial. 0 not checked. [2019-09-08 05:21:40,932 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-09-08 05:21:40,933 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 4] total 9 [2019-09-08 05:21:40,936 INFO L454 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-09-08 05:21:40,937 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-09-08 05:21:40,937 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2019-09-08 05:21:40,937 INFO L87 Difference]: Start difference. First operand 329743 states and 556256 transitions. Second operand 9 states. [2019-09-08 05:22:52,439 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-08 05:22:52,440 INFO L93 Difference]: Finished difference Result 1125846 states and 1946019 transitions. [2019-09-08 05:22:52,440 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2019-09-08 05:22:52,440 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 353 [2019-09-08 05:22:52,440 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-08 05:22:58,355 INFO L225 Difference]: With dead ends: 1125846 [2019-09-08 05:22:58,356 INFO L226 Difference]: Without dead ends: 796806 [2019-09-08 05:23:00,503 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 371 GetRequests, 356 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=50, Invalid=222, Unknown=0, NotChecked=0, Total=272 [2019-09-08 05:23:01,097 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 796806 states.