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_spec6_product31.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-673a906-m [2019-10-02 13:43:51,878 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-02 13:43:51,881 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-02 13:43:51,901 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-02 13:43:51,902 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-02 13:43:51,904 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-02 13:43:51,906 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-02 13:43:51,920 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-02 13:43:51,922 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-02 13:43:51,924 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-02 13:43:51,927 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-02 13:43:51,928 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-02 13:43:51,929 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-02 13:43:51,932 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-02 13:43:51,935 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-02 13:43:51,936 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-02 13:43:51,938 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-02 13:43:51,942 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-02 13:43:51,944 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-02 13:43:51,949 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-02 13:43:51,954 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-02 13:43:51,956 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-02 13:43:51,960 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-02 13:43:51,961 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-02 13:43:51,963 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-02 13:43:51,963 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-02 13:43:51,963 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-02 13:43:51,966 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-02 13:43:51,967 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-02 13:43:51,969 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-02 13:43:51,969 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-02 13:43:51,970 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-02 13:43:51,970 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-02 13:43:51,971 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-02 13:43:51,973 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-02 13:43:51,974 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-02 13:43:51,974 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-02 13:43:51,975 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-02 13:43:51,975 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-02 13:43:51,976 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-02 13:43:51,976 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-02 13:43:51,978 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2019-10-02 13:43:52,005 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-02 13:43:52,006 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-02 13:43:52,008 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-02 13:43:52,009 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-02 13:43:52,009 INFO L138 SettingsManager]: * Use SBE=true [2019-10-02 13:43:52,009 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-02 13:43:52,010 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-02 13:43:52,010 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-02 13:43:52,010 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-02 13:43:52,010 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-02 13:43:52,011 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-02 13:43:52,012 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-02 13:43:52,012 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-02 13:43:52,012 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-02 13:43:52,013 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-02 13:43:52,013 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-02 13:43:52,013 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-02 13:43:52,013 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-02 13:43:52,013 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-02 13:43:52,014 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-02 13:43:52,014 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-02 13:43:52,014 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-02 13:43:52,014 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-02 13:43:52,015 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-02 13:43:52,015 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-02 13:43:52,015 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-02 13:43:52,015 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-02 13:43:52,016 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-02 13:43:52,016 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-10-02 13:43:52,077 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-02 13:43:52,094 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-02 13:43:52,098 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-02 13:43:52,100 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-02 13:43:52,100 INFO L275 PluginConnector]: CDTParser initialized [2019-10-02 13:43:52,101 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/email_spec6_product31.cil.c [2019-10-02 13:43:52,167 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b00dde181/fe4b7edab0134bb883985105e67df6e0/FLAG0d591f001 [2019-10-02 13:43:52,813 INFO L306 CDTParser]: Found 1 translation units. [2019-10-02 13:43:52,816 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/email_spec6_product31.cil.c [2019-10-02 13:43:52,843 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b00dde181/fe4b7edab0134bb883985105e67df6e0/FLAG0d591f001 [2019-10-02 13:43:52,985 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b00dde181/fe4b7edab0134bb883985105e67df6e0 [2019-10-02 13:43:52,995 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-02 13:43:52,997 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-02 13:43:52,998 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-02 13:43:52,998 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-02 13:43:53,002 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-02 13:43:53,003 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.10 01:43:52" (1/1) ... [2019-10-02 13:43:53,007 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@18ad9034 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.10 01:43:53, skipping insertion in model container [2019-10-02 13:43:53,007 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.10 01:43:52" (1/1) ... [2019-10-02 13:43:53,015 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-02 13:43:53,108 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-02 13:43:53,904 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-02 13:43:53,921 INFO L188 MainTranslator]: Completed pre-run [2019-10-02 13:43:54,045 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-02 13:43:54,165 INFO L192 MainTranslator]: Completed translation [2019-10-02 13:43:54,166 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.10 01:43:54 WrapperNode [2019-10-02 13:43:54,167 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-02 13:43:54,167 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-02 13:43:54,168 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-02 13:43:54,168 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-02 13:43:54,182 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.10 01:43:54" (1/1) ... [2019-10-02 13:43:54,182 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.10 01:43:54" (1/1) ... [2019-10-02 13:43:54,244 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.10 01:43:54" (1/1) ... [2019-10-02 13:43:54,244 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.10 01:43:54" (1/1) ... [2019-10-02 13:43:54,303 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.10 01:43:54" (1/1) ... [2019-10-02 13:43:54,328 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.10 01:43:54" (1/1) ... [2019-10-02 13:43:54,342 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.10 01:43:54" (1/1) ... [2019-10-02 13:43:54,361 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-02 13:43:54,362 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-02 13:43:54,362 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-02 13:43:54,363 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-02 13:43:54,364 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.10 01:43:54" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-02 13:43:54,448 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-02 13:43:54,448 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-02 13:43:54,449 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-10-02 13:43:54,449 INFO L138 BoogieDeclarations]: Found implementation of procedure prompt [2019-10-02 13:43:54,449 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__Keys [2019-10-02 13:43:54,449 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__Encrypt [2019-10-02 13:43:54,449 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__Forward [2019-10-02 13:43:54,450 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail [2019-10-02 13:43:54,450 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable__wrappee__Keys [2019-10-02 13:43:54,450 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2019-10-02 13:43:54,450 INFO L138 BoogieDeclarations]: Found implementation of procedure cloneEmail [2019-10-02 13:43:54,451 INFO L138 BoogieDeclarations]: Found implementation of procedure createEmail [2019-10-02 13:43:54,451 INFO L138 BoogieDeclarations]: Found implementation of procedure initClient [2019-10-02 13:43:54,451 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientName [2019-10-02 13:43:54,451 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientName [2019-10-02 13:43:54,451 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientOutbuffer [2019-10-02 13:43:54,452 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientOutbuffer [2019-10-02 13:43:54,452 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookSize [2019-10-02 13:43:54,452 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookSize [2019-10-02 13:43:54,452 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientAddressBookEntry [2019-10-02 13:43:54,453 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAlias [2019-10-02 13:43:54,453 INFO L138 BoogieDeclarations]: Found implementation of procedure findClientAddressBookAlias [2019-10-02 13:43:54,453 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAlias [2019-10-02 13:43:54,453 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAddress [2019-10-02 13:43:54,453 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAddress [2019-10-02 13:43:54,454 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAutoResponse [2019-10-02 13:43:54,454 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAutoResponse [2019-10-02 13:43:54,454 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientPrivateKey [2019-10-02 13:43:54,454 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2019-10-02 13:43:54,454 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringSize [2019-10-02 13:43:54,454 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringSize [2019-10-02 13:43:54,454 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2019-10-02 13:43:54,455 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringUser [2019-10-02 13:43:54,455 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2019-10-02 13:43:54,455 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringPublicKey [2019-10-02 13:43:54,455 INFO L138 BoogieDeclarations]: Found implementation of procedure findPublicKey [2019-10-02 13:43:54,455 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2019-10-02 13:43:54,455 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientForwardReceiver [2019-10-02 13:43:54,456 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientForwardReceiver [2019-10-02 13:43:54,456 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientId [2019-10-02 13:43:54,456 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2019-10-02 13:43:54,456 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-10-02 13:43:54,456 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-10-02 13:43:54,456 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-10-02 13:43:54,457 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-10-02 13:43:54,457 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-10-02 13:43:54,457 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-10-02 13:43:54,457 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-10-02 13:43:54,457 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-10-02 13:43:54,457 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob__wrappee__Base [2019-10-02 13:43:54,457 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob [2019-10-02 13:43:54,458 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh__wrappee__Base [2019-10-02 13:43:54,458 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh [2019-10-02 13:43:54,458 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck__wrappee__Base [2019-10-02 13:43:54,458 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck [2019-10-02 13:43:54,458 INFO L138 BoogieDeclarations]: Found implementation of procedure bobToRjh [2019-10-02 13:43:54,458 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhToBob [2019-10-02 13:43:54,459 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-10-02 13:43:54,459 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-02 13:43:54,459 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAdd [2019-10-02 13:43:54,459 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAdd [2019-10-02 13:43:54,459 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAddChuck [2019-10-02 13:43:54,459 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAddChuck [2019-10-02 13:43:54,459 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2019-10-02 13:43:54,460 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAddRjh [2019-10-02 13:43:54,460 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhDeletePrivateKey [2019-10-02 13:43:54,460 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyChange [2019-10-02 13:43:54,460 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyChange [2019-10-02 13:43:54,460 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhEnableForwarding [2019-10-02 13:43:54,461 INFO L138 BoogieDeclarations]: Found implementation of procedure mail [2019-10-02 13:43:54,461 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__Keys [2019-10-02 13:43:54,461 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__Encrypt [2019-10-02 13:43:54,461 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2019-10-02 13:43:54,461 INFO L138 BoogieDeclarations]: Found implementation of procedure deliver [2019-10-02 13:43:54,461 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Sign [2019-10-02 13:43:54,461 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Forward [2019-10-02 13:43:54,462 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Verify [2019-10-02 13:43:54,462 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming [2019-10-02 13:43:54,462 INFO L138 BoogieDeclarations]: Found implementation of procedure createClient [2019-10-02 13:43:54,462 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2019-10-02 13:43:54,462 INFO L138 BoogieDeclarations]: Found implementation of procedure queue [2019-10-02 13:43:54,462 INFO L138 BoogieDeclarations]: Found implementation of procedure is_queue_empty [2019-10-02 13:43:54,463 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_client [2019-10-02 13:43:54,463 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_email [2019-10-02 13:43:54,463 INFO L138 BoogieDeclarations]: Found implementation of procedure isKeyPairValid [2019-10-02 13:43:54,463 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2019-10-02 13:43:54,463 INFO L138 BoogieDeclarations]: Found implementation of procedure sign [2019-10-02 13:43:54,463 INFO L138 BoogieDeclarations]: Found implementation of procedure forward [2019-10-02 13:43:54,464 INFO L138 BoogieDeclarations]: Found implementation of procedure verify [2019-10-02 13:43:54,464 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__EncryptDecrypt_spec__1 [2019-10-02 13:43:54,464 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__EncryptDecrypt_spec__2 [2019-10-02 13:43:54,464 INFO L138 BoogieDeclarations]: Found implementation of procedure initEmail [2019-10-02 13:43:54,464 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailId [2019-10-02 13:43:54,464 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailId [2019-10-02 13:43:54,464 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2019-10-02 13:43:54,465 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2019-10-02 13:43:54,465 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2019-10-02 13:43:54,465 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2019-10-02 13:43:54,465 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSubject [2019-10-02 13:43:54,465 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSubject [2019-10-02 13:43:54,465 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailBody [2019-10-02 13:43:54,466 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailBody [2019-10-02 13:43:54,466 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2019-10-02 13:43:54,466 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2019-10-02 13:43:54,466 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2019-10-02 13:43:54,466 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2019-10-02 13:43:54,466 INFO L138 BoogieDeclarations]: Found implementation of procedure isSigned [2019-10-02 13:43:54,467 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSigned [2019-10-02 13:43:54,467 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSignKey [2019-10-02 13:43:54,467 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSignKey [2019-10-02 13:43:54,467 INFO L138 BoogieDeclarations]: Found implementation of procedure isVerified [2019-10-02 13:43:54,467 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSignatureVerified [2019-10-02 13:43:54,467 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-10-02 13:43:54,467 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-10-02 13:43:54,468 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-10-02 13:43:54,468 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-10-02 13:43:54,468 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-02 13:43:54,468 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-02 13:43:54,468 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-10-02 13:43:54,468 INFO L130 BoogieDeclarations]: Found specification of procedure prompt [2019-10-02 13:43:54,469 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-02 13:43:54,469 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailId [2019-10-02 13:43:54,469 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2019-10-02 13:43:54,469 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2019-10-02 13:43:54,469 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2019-10-02 13:43:54,469 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2019-10-02 13:43:54,469 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2019-10-02 13:43:54,470 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2019-10-02 13:43:54,470 INFO L130 BoogieDeclarations]: Found specification of procedure isSigned [2019-10-02 13:43:54,470 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSignKey [2019-10-02 13:43:54,470 INFO L130 BoogieDeclarations]: Found specification of procedure isVerified [2019-10-02 13:43:54,470 INFO L130 BoogieDeclarations]: Found specification of procedure printMail [2019-10-02 13:43:54,470 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2019-10-02 13:43:54,471 INFO L130 BoogieDeclarations]: Found specification of procedure createEmail [2019-10-02 13:43:54,471 INFO L130 BoogieDeclarations]: Found specification of procedure cloneEmail [2019-10-02 13:43:54,471 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__Keys [2019-10-02 13:43:54,471 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__Encrypt [2019-10-02 13:43:54,471 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__Forward [2019-10-02 13:43:54,471 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable__wrappee__Keys [2019-10-02 13:43:54,471 INFO L130 BoogieDeclarations]: Found specification of procedure initClient [2019-10-02 13:43:54,472 INFO L130 BoogieDeclarations]: Found specification of procedure getClientName [2019-10-02 13:43:54,472 INFO L130 BoogieDeclarations]: Found specification of procedure setClientName [2019-10-02 13:43:54,472 INFO L130 BoogieDeclarations]: Found specification of procedure getClientOutbuffer [2019-10-02 13:43:54,472 INFO L130 BoogieDeclarations]: Found specification of procedure setClientOutbuffer [2019-10-02 13:43:54,472 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookSize [2019-10-02 13:43:54,473 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookSize [2019-10-02 13:43:54,473 INFO L130 BoogieDeclarations]: Found specification of procedure createClientAddressBookEntry [2019-10-02 13:43:54,473 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAlias [2019-10-02 13:43:54,473 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAlias [2019-10-02 13:43:54,473 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAddress [2019-10-02 13:43:54,473 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAddress [2019-10-02 13:43:54,474 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAutoResponse [2019-10-02 13:43:54,474 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAutoResponse [2019-10-02 13:43:54,474 INFO L130 BoogieDeclarations]: Found specification of procedure getClientPrivateKey [2019-10-02 13:43:54,474 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2019-10-02 13:43:54,474 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringSize [2019-10-02 13:43:54,475 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2019-10-02 13:43:54,475 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringUser [2019-10-02 13:43:54,475 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2019-10-02 13:43:54,475 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringPublicKey [2019-10-02 13:43:54,475 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2019-10-02 13:43:54,475 INFO L130 BoogieDeclarations]: Found specification of procedure getClientForwardReceiver [2019-10-02 13:43:54,476 INFO L130 BoogieDeclarations]: Found specification of procedure setClientForwardReceiver [2019-10-02 13:43:54,476 INFO L130 BoogieDeclarations]: Found specification of procedure getClientId [2019-10-02 13:43:54,476 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2019-10-02 13:43:54,476 INFO L130 BoogieDeclarations]: Found specification of procedure findPublicKey [2019-10-02 13:43:54,476 INFO L130 BoogieDeclarations]: Found specification of procedure findClientAddressBookAlias [2019-10-02 13:43:54,477 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringSize [2019-10-02 13:43:54,477 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-10-02 13:43:54,477 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-10-02 13:43:54,477 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-10-02 13:43:54,477 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-02 13:43:54,477 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-10-02 13:43:54,478 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-02 13:43:54,478 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-02 13:43:54,478 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-02 13:43:54,478 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-02 13:43:54,478 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-10-02 13:43:54,478 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-02 13:43:54,479 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-10-02 13:43:54,479 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-10-02 13:43:54,479 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-02 13:43:54,479 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-10-02 13:43:54,479 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-10-02 13:43:54,479 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-10-02 13:43:54,480 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAdd [2019-10-02 13:43:54,480 INFO L130 BoogieDeclarations]: Found specification of procedure rjhDeletePrivateKey [2019-10-02 13:43:54,480 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAdd [2019-10-02 13:43:54,480 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAddRjh [2019-10-02 13:43:54,480 INFO L130 BoogieDeclarations]: Found specification of procedure rjhEnableForwarding [2019-10-02 13:43:54,480 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyChange [2019-10-02 13:43:54,481 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2019-10-02 13:43:54,481 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyChange [2019-10-02 13:43:54,481 INFO L130 BoogieDeclarations]: Found specification of procedure bobToRjh [2019-10-02 13:43:54,481 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-10-02 13:43:54,481 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2019-10-02 13:43:54,482 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-10-02 13:43:54,482 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-10-02 13:43:54,482 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-10-02 13:43:54,482 INFO L130 BoogieDeclarations]: Found specification of procedure is_queue_empty [2019-10-02 13:43:54,482 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_client [2019-10-02 13:43:54,482 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_email [2019-10-02 13:43:54,483 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2019-10-02 13:43:54,483 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2019-10-02 13:43:54,483 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2019-10-02 13:43:54,483 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob [2019-10-02 13:43:54,483 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh [2019-10-02 13:43:54,483 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck [2019-10-02 13:43:54,484 INFO L130 BoogieDeclarations]: Found specification of procedure rjhToBob [2019-10-02 13:43:54,484 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-10-02 13:43:54,484 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-02 13:43:54,484 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAddChuck [2019-10-02 13:43:54,484 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAddChuck [2019-10-02 13:43:54,484 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob__wrappee__Base [2019-10-02 13:43:54,485 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh__wrappee__Base [2019-10-02 13:43:54,485 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck__wrappee__Base [2019-10-02 13:43:54,485 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2019-10-02 13:43:54,485 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2019-10-02 13:43:54,485 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSigned [2019-10-02 13:43:54,486 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSignKey [2019-10-02 13:43:54,486 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSignatureVerified [2019-10-02 13:43:54,486 INFO L130 BoogieDeclarations]: Found specification of procedure queue [2019-10-02 13:43:54,486 INFO L130 BoogieDeclarations]: Found specification of procedure mail [2019-10-02 13:43:54,486 INFO L130 BoogieDeclarations]: Found specification of procedure deliver [2019-10-02 13:43:54,486 INFO L130 BoogieDeclarations]: Found specification of procedure incoming [2019-10-02 13:43:54,487 INFO L130 BoogieDeclarations]: Found specification of procedure createClient [2019-10-02 13:43:54,487 INFO L130 BoogieDeclarations]: Found specification of procedure isKeyPairValid [2019-10-02 13:43:54,487 INFO L130 BoogieDeclarations]: Found specification of procedure sign [2019-10-02 13:43:54,487 INFO L130 BoogieDeclarations]: Found specification of procedure forward [2019-10-02 13:43:54,487 INFO L130 BoogieDeclarations]: Found specification of procedure verify [2019-10-02 13:43:54,487 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__EncryptDecrypt_spec__1 [2019-10-02 13:43:54,488 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__Keys [2019-10-02 13:43:54,488 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__Encrypt [2019-10-02 13:43:54,488 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Sign [2019-10-02 13:43:54,488 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Forward [2019-10-02 13:43:54,488 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Verify [2019-10-02 13:43:54,488 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__EncryptDecrypt_spec__2 [2019-10-02 13:43:54,489 INFO L130 BoogieDeclarations]: Found specification of procedure initEmail [2019-10-02 13:43:54,489 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailId [2019-10-02 13:43:54,489 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSubject [2019-10-02 13:43:54,489 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSubject [2019-10-02 13:43:54,489 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailBody [2019-10-02 13:43:54,489 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailBody [2019-10-02 13:43:54,490 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-10-02 13:43:54,490 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-02 13:43:54,490 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-02 13:43:54,490 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-02 13:43:56,849 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-02 13:43:56,850 INFO L283 CfgBuilder]: Removed 4 assume(true) statements. [2019-10-02 13:43:56,852 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.10 01:43:56 BoogieIcfgContainer [2019-10-02 13:43:56,852 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-02 13:43:56,853 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-02 13:43:56,853 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-02 13:43:56,857 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-02 13:43:56,857 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.10 01:43:52" (1/3) ... [2019-10-02 13:43:56,858 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@26f71cf8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.10 01:43:56, skipping insertion in model container [2019-10-02 13:43:56,858 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.10 01:43:54" (2/3) ... [2019-10-02 13:43:56,859 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@26f71cf8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.10 01:43:56, skipping insertion in model container [2019-10-02 13:43:56,860 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.10 01:43:56" (3/3) ... [2019-10-02 13:43:56,863 INFO L109 eAbstractionObserver]: Analyzing ICFG email_spec6_product31.cil.c [2019-10-02 13:43:56,875 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-02 13:43:56,889 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-02 13:43:56,907 INFO L252 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-02 13:43:56,952 INFO L128 ementStrategyFactory]: Using default assertion order modulation [2019-10-02 13:43:56,953 INFO L377 AbstractCegarLoop]: Interprodecural is true [2019-10-02 13:43:56,953 INFO L378 AbstractCegarLoop]: Hoare is true [2019-10-02 13:43:56,953 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-02 13:43:56,953 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-02 13:43:56,957 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-02 13:43:56,958 INFO L382 AbstractCegarLoop]: Difference is false [2019-10-02 13:43:56,958 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-02 13:43:56,958 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-02 13:43:57,006 INFO L276 IsEmpty]: Start isEmpty. Operand 566 states. [2019-10-02 13:43:57,046 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 190 [2019-10-02 13:43:57,046 INFO L403 BasicCegarLoop]: Found error trace [2019-10-02 13:43:57,047 INFO L411 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-02 13:43:57,050 INFO L418 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-02 13:43:57,054 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-02 13:43:57,055 INFO L82 PathProgramCache]: Analyzing trace with hash -1627872487, now seen corresponding path program 1 times [2019-10-02 13:43:57,057 INFO L224 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-10-02 13:43:57,057 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-10-02 13:43:57,126 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 13:43:57,126 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-02 13:43:57,126 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 13:43:57,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-02 13:43:57,847 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2019-10-02 13:43:57,850 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-02 13:43:57,850 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-10-02 13:43:57,854 INFO L454 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-02 13:43:57,869 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-02 13:43:57,870 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-02 13:43:57,872 INFO L87 Difference]: Start difference. First operand 566 states. Second operand 2 states. [2019-10-02 13:43:57,953 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-02 13:43:57,954 INFO L93 Difference]: Finished difference Result 874 states and 1147 transitions. [2019-10-02 13:43:57,954 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-02 13:43:57,956 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 189 [2019-10-02 13:43:57,957 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-02 13:43:57,989 INFO L225 Difference]: With dead ends: 874 [2019-10-02 13:43:57,992 INFO L226 Difference]: Without dead ends: 543 [2019-10-02 13:43:58,005 INFO L640 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-02 13:43:58,029 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 543 states. [2019-10-02 13:43:58,148 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 543 to 543. [2019-10-02 13:43:58,149 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 543 states. [2019-10-02 13:43:58,160 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 543 states to 543 states and 717 transitions. [2019-10-02 13:43:58,162 INFO L78 Accepts]: Start accepts. Automaton has 543 states and 717 transitions. Word has length 189 [2019-10-02 13:43:58,166 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-02 13:43:58,166 INFO L475 AbstractCegarLoop]: Abstraction has 543 states and 717 transitions. [2019-10-02 13:43:58,166 INFO L476 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-02 13:43:58,166 INFO L276 IsEmpty]: Start isEmpty. Operand 543 states and 717 transitions. [2019-10-02 13:43:58,175 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 191 [2019-10-02 13:43:58,176 INFO L403 BasicCegarLoop]: Found error trace [2019-10-02 13:43:58,176 INFO L411 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-02 13:43:58,177 INFO L418 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-02 13:43:58,178 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-02 13:43:58,178 INFO L82 PathProgramCache]: Analyzing trace with hash -43680010, now seen corresponding path program 1 times [2019-10-02 13:43:58,178 INFO L224 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-10-02 13:43:58,178 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-10-02 13:43:58,183 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 13:43:58,184 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-02 13:43:58,184 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 13:43:58,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-02 13:43:58,475 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2019-10-02 13:43:58,475 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-02 13:43:58,476 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-02 13:43:58,478 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-02 13:43:58,478 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-02 13:43:58,478 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-02 13:43:58,479 INFO L87 Difference]: Start difference. First operand 543 states and 717 transitions. Second operand 3 states. [2019-10-02 13:43:58,524 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-02 13:43:58,525 INFO L93 Difference]: Finished difference Result 857 states and 1114 transitions. [2019-10-02 13:43:58,525 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-02 13:43:58,525 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 190 [2019-10-02 13:43:58,526 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-02 13:43:58,531 INFO L225 Difference]: With dead ends: 857 [2019-10-02 13:43:58,531 INFO L226 Difference]: Without dead ends: 546 [2019-10-02 13:43:58,534 INFO L640 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-02 13:43:58,536 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 546 states. [2019-10-02 13:43:58,555 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 546 to 545. [2019-10-02 13:43:58,555 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 545 states. [2019-10-02 13:43:58,559 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 545 states to 545 states and 719 transitions. [2019-10-02 13:43:58,559 INFO L78 Accepts]: Start accepts. Automaton has 545 states and 719 transitions. Word has length 190 [2019-10-02 13:43:58,560 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-02 13:43:58,560 INFO L475 AbstractCegarLoop]: Abstraction has 545 states and 719 transitions. [2019-10-02 13:43:58,560 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-02 13:43:58,560 INFO L276 IsEmpty]: Start isEmpty. Operand 545 states and 719 transitions. [2019-10-02 13:43:58,564 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 197 [2019-10-02 13:43:58,564 INFO L403 BasicCegarLoop]: Found error trace [2019-10-02 13:43:58,565 INFO L411 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-02 13:43:58,565 INFO L418 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-02 13:43:58,565 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-02 13:43:58,565 INFO L82 PathProgramCache]: Analyzing trace with hash -1696045406, now seen corresponding path program 1 times [2019-10-02 13:43:58,566 INFO L224 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-10-02 13:43:58,566 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-10-02 13:43:58,571 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 13:43:58,571 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-02 13:43:58,571 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 13:43:58,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-02 13:43:58,803 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2019-10-02 13:43:58,803 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-02 13:43:58,803 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-02 13:43:58,804 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-02 13:43:58,807 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-02 13:43:58,807 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-02 13:43:58,807 INFO L87 Difference]: Start difference. First operand 545 states and 719 transitions. Second operand 3 states. [2019-10-02 13:43:58,860 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-02 13:43:58,860 INFO L93 Difference]: Finished difference Result 1066 states and 1436 transitions. [2019-10-02 13:43:58,864 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-02 13:43:58,865 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 196 [2019-10-02 13:43:58,865 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-02 13:43:58,872 INFO L225 Difference]: With dead ends: 1066 [2019-10-02 13:43:58,872 INFO L226 Difference]: Without dead ends: 586 [2019-10-02 13:43:58,875 INFO L640 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-02 13:43:58,877 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 586 states. [2019-10-02 13:43:58,924 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 586 to 585. [2019-10-02 13:43:58,924 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 585 states. [2019-10-02 13:43:58,931 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 585 states to 585 states and 788 transitions. [2019-10-02 13:43:58,931 INFO L78 Accepts]: Start accepts. Automaton has 585 states and 788 transitions. Word has length 196 [2019-10-02 13:43:58,933 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-02 13:43:58,933 INFO L475 AbstractCegarLoop]: Abstraction has 585 states and 788 transitions. [2019-10-02 13:43:58,933 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-02 13:43:58,933 INFO L276 IsEmpty]: Start isEmpty. Operand 585 states and 788 transitions. [2019-10-02 13:43:58,942 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 198 [2019-10-02 13:43:58,942 INFO L403 BasicCegarLoop]: Found error trace [2019-10-02 13:43:58,943 INFO L411 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-02 13:43:58,943 INFO L418 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-02 13:43:58,943 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-02 13:43:58,944 INFO L82 PathProgramCache]: Analyzing trace with hash -1296301565, now seen corresponding path program 1 times [2019-10-02 13:43:58,944 INFO L224 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-10-02 13:43:58,944 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-10-02 13:43:58,949 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 13:43:58,949 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-02 13:43:58,950 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 13:43:59,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-02 13:43:59,311 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2019-10-02 13:43:59,312 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-02 13:43:59,312 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2019-10-02 13:43:59,313 INFO L454 AbstractCegarLoop]: Interpolant automaton has 11 states [2019-10-02 13:43:59,316 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2019-10-02 13:43:59,317 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2019-10-02 13:43:59,317 INFO L87 Difference]: Start difference. First operand 585 states and 788 transitions. Second operand 11 states. [2019-10-02 13:44:04,542 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-02 13:44:04,543 INFO L93 Difference]: Finished difference Result 3072 states and 4085 transitions. [2019-10-02 13:44:04,544 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2019-10-02 13:44:04,544 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 197 [2019-10-02 13:44:04,545 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-02 13:44:04,562 INFO L225 Difference]: With dead ends: 3072 [2019-10-02 13:44:04,562 INFO L226 Difference]: Without dead ends: 2362 [2019-10-02 13:44:04,570 INFO L640 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 234 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=190, Invalid=802, Unknown=0, NotChecked=0, Total=992 [2019-10-02 13:44:04,575 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2362 states. [2019-10-02 13:44:04,696 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2362 to 2347. [2019-10-02 13:44:04,696 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2347 states. [2019-10-02 13:44:04,711 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2347 states to 2347 states and 3065 transitions. [2019-10-02 13:44:04,713 INFO L78 Accepts]: Start accepts. Automaton has 2347 states and 3065 transitions. Word has length 197 [2019-10-02 13:44:04,714 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-02 13:44:04,714 INFO L475 AbstractCegarLoop]: Abstraction has 2347 states and 3065 transitions. [2019-10-02 13:44:04,714 INFO L476 AbstractCegarLoop]: Interpolant automaton has 11 states. [2019-10-02 13:44:04,714 INFO L276 IsEmpty]: Start isEmpty. Operand 2347 states and 3065 transitions. [2019-10-02 13:44:04,719 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 199 [2019-10-02 13:44:04,719 INFO L403 BasicCegarLoop]: Found error trace [2019-10-02 13:44:04,719 INFO L411 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-02 13:44:04,720 INFO L418 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-02 13:44:04,720 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-02 13:44:04,720 INFO L82 PathProgramCache]: Analyzing trace with hash -1739210456, now seen corresponding path program 1 times [2019-10-02 13:44:04,720 INFO L224 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-10-02 13:44:04,720 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-10-02 13:44:04,725 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 13:44:04,725 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-02 13:44:04,725 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 13:44:04,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-02 13:44:05,134 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2019-10-02 13:44:05,135 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-02 13:44:05,135 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2019-10-02 13:44:05,137 INFO L454 AbstractCegarLoop]: Interpolant automaton has 18 states [2019-10-02 13:44:05,137 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2019-10-02 13:44:05,139 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=273, Unknown=0, NotChecked=0, Total=306 [2019-10-02 13:44:05,139 INFO L87 Difference]: Start difference. First operand 2347 states and 3065 transitions. Second operand 18 states. [2019-10-02 13:44:05,614 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-02 13:44:05,614 INFO L93 Difference]: Finished difference Result 4175 states and 5446 transitions. [2019-10-02 13:44:05,614 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2019-10-02 13:44:05,615 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 198 [2019-10-02 13:44:05,615 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-02 13:44:05,636 INFO L225 Difference]: With dead ends: 4175 [2019-10-02 13:44:05,636 INFO L226 Difference]: Without dead ends: 1888 [2019-10-02 13:44:05,646 INFO L640 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=61, Invalid=539, Unknown=0, NotChecked=0, Total=600 [2019-10-02 13:44:05,649 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1888 states. [2019-10-02 13:44:05,736 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1888 to 1848. [2019-10-02 13:44:05,736 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1848 states. [2019-10-02 13:44:05,746 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1848 states to 1848 states and 2408 transitions. [2019-10-02 13:44:05,747 INFO L78 Accepts]: Start accepts. Automaton has 1848 states and 2408 transitions. Word has length 198 [2019-10-02 13:44:05,749 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-02 13:44:05,749 INFO L475 AbstractCegarLoop]: Abstraction has 1848 states and 2408 transitions. [2019-10-02 13:44:05,749 INFO L476 AbstractCegarLoop]: Interpolant automaton has 18 states. [2019-10-02 13:44:05,749 INFO L276 IsEmpty]: Start isEmpty. Operand 1848 states and 2408 transitions. [2019-10-02 13:44:05,753 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 208 [2019-10-02 13:44:05,753 INFO L403 BasicCegarLoop]: Found error trace [2019-10-02 13:44:05,754 INFO L411 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-02 13:44:05,754 INFO L418 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-02 13:44:05,754 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-02 13:44:05,754 INFO L82 PathProgramCache]: Analyzing trace with hash -1608111805, now seen corresponding path program 1 times [2019-10-02 13:44:05,755 INFO L224 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-10-02 13:44:05,755 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-10-02 13:44:05,759 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 13:44:05,759 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-02 13:44:05,759 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 13:44:05,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-02 13:44:05,932 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2019-10-02 13:44:05,932 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-02 13:44:05,933 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-10-02 13:44:05,933 INFO L454 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-10-02 13:44:05,934 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-10-02 13:44:05,934 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-10-02 13:44:05,934 INFO L87 Difference]: Start difference. First operand 1848 states and 2408 transitions. Second operand 6 states. [2019-10-02 13:44:06,717 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-02 13:44:06,718 INFO L93 Difference]: Finished difference Result 5193 states and 6754 transitions. [2019-10-02 13:44:06,718 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-10-02 13:44:06,718 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 207 [2019-10-02 13:44:06,719 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-02 13:44:06,740 INFO L225 Difference]: With dead ends: 5193 [2019-10-02 13:44:06,740 INFO L226 Difference]: Without dead ends: 3687 [2019-10-02 13:44:06,746 INFO L640 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2019-10-02 13:44:06,751 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3687 states. [2019-10-02 13:44:06,888 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3687 to 3616. [2019-10-02 13:44:06,889 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3616 states. [2019-10-02 13:44:06,908 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3616 states to 3616 states and 4738 transitions. [2019-10-02 13:44:06,909 INFO L78 Accepts]: Start accepts. Automaton has 3616 states and 4738 transitions. Word has length 207 [2019-10-02 13:44:06,910 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-02 13:44:06,910 INFO L475 AbstractCegarLoop]: Abstraction has 3616 states and 4738 transitions. [2019-10-02 13:44:06,910 INFO L476 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-10-02 13:44:06,910 INFO L276 IsEmpty]: Start isEmpty. Operand 3616 states and 4738 transitions. [2019-10-02 13:44:06,916 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 209 [2019-10-02 13:44:06,916 INFO L403 BasicCegarLoop]: Found error trace [2019-10-02 13:44:06,917 INFO L411 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-02 13:44:06,917 INFO L418 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-02 13:44:06,917 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-02 13:44:06,918 INFO L82 PathProgramCache]: Analyzing trace with hash 529447440, now seen corresponding path program 1 times [2019-10-02 13:44:06,918 INFO L224 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-10-02 13:44:06,918 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-10-02 13:44:06,922 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 13:44:06,922 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-02 13:44:06,922 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 13:44:06,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-02 13:44:07,146 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2019-10-02 13:44:07,147 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-02 13:44:07,147 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2019-10-02 13:44:07,148 INFO L454 AbstractCegarLoop]: Interpolant automaton has 11 states [2019-10-02 13:44:07,149 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2019-10-02 13:44:07,150 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110 [2019-10-02 13:44:07,150 INFO L87 Difference]: Start difference. First operand 3616 states and 4738 transitions. Second operand 11 states. [2019-10-02 13:44:07,684 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-02 13:44:07,684 INFO L93 Difference]: Finished difference Result 6651 states and 8619 transitions. [2019-10-02 13:44:07,684 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2019-10-02 13:44:07,685 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 208 [2019-10-02 13:44:07,685 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-02 13:44:07,709 INFO L225 Difference]: With dead ends: 6651 [2019-10-02 13:44:07,709 INFO L226 Difference]: Without dead ends: 3634 [2019-10-02 13:44:07,721 INFO L640 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=59, Invalid=283, Unknown=0, NotChecked=0, Total=342 [2019-10-02 13:44:07,726 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3634 states. [2019-10-02 13:44:07,990 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3634 to 3604. [2019-10-02 13:44:07,990 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3604 states. [2019-10-02 13:44:08,004 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3604 states to 3604 states and 4712 transitions. [2019-10-02 13:44:08,005 INFO L78 Accepts]: Start accepts. Automaton has 3604 states and 4712 transitions. Word has length 208 [2019-10-02 13:44:08,008 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-02 13:44:08,012 INFO L475 AbstractCegarLoop]: Abstraction has 3604 states and 4712 transitions. [2019-10-02 13:44:08,012 INFO L476 AbstractCegarLoop]: Interpolant automaton has 11 states. [2019-10-02 13:44:08,013 INFO L276 IsEmpty]: Start isEmpty. Operand 3604 states and 4712 transitions. [2019-10-02 13:44:08,020 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 209 [2019-10-02 13:44:08,020 INFO L403 BasicCegarLoop]: Found error trace [2019-10-02 13:44:08,021 INFO L411 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-02 13:44:08,022 INFO L418 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-02 13:44:08,022 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-02 13:44:08,022 INFO L82 PathProgramCache]: Analyzing trace with hash 1116223559, now seen corresponding path program 1 times [2019-10-02 13:44:08,022 INFO L224 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-10-02 13:44:08,023 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-10-02 13:44:08,027 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 13:44:08,027 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-02 13:44:08,027 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 13:44:08,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-02 13:44:08,204 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2019-10-02 13:44:08,204 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-02 13:44:08,204 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-10-02 13:44:08,206 INFO L454 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-02 13:44:08,206 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-02 13:44:08,206 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-10-02 13:44:08,207 INFO L87 Difference]: Start difference. First operand 3604 states and 4712 transitions. Second operand 5 states. [2019-10-02 13:44:09,598 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-02 13:44:09,598 INFO L93 Difference]: Finished difference Result 12681 states and 16577 transitions. [2019-10-02 13:44:09,599 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-10-02 13:44:09,599 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 208 [2019-10-02 13:44:09,600 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-02 13:44:09,656 INFO L225 Difference]: With dead ends: 12681 [2019-10-02 13:44:09,657 INFO L226 Difference]: Without dead ends: 8562 [2019-10-02 13:44:09,677 INFO L640 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2019-10-02 13:44:09,692 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8562 states. [2019-10-02 13:44:10,130 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8562 to 8282. [2019-10-02 13:44:10,130 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8282 states. [2019-10-02 13:44:10,160 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8282 states to 8282 states and 10870 transitions. [2019-10-02 13:44:10,162 INFO L78 Accepts]: Start accepts. Automaton has 8282 states and 10870 transitions. Word has length 208 [2019-10-02 13:44:10,162 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-02 13:44:10,162 INFO L475 AbstractCegarLoop]: Abstraction has 8282 states and 10870 transitions. [2019-10-02 13:44:10,162 INFO L476 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-02 13:44:10,163 INFO L276 IsEmpty]: Start isEmpty. Operand 8282 states and 10870 transitions. [2019-10-02 13:44:10,175 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 238 [2019-10-02 13:44:10,175 INFO L403 BasicCegarLoop]: Found error trace [2019-10-02 13:44:10,175 INFO L411 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-02 13:44:10,176 INFO L418 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-02 13:44:10,176 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-02 13:44:10,176 INFO L82 PathProgramCache]: Analyzing trace with hash 416033079, now seen corresponding path program 1 times [2019-10-02 13:44:10,176 INFO L224 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-10-02 13:44:10,177 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-10-02 13:44:10,181 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 13:44:10,182 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-02 13:44:10,182 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 13:44:10,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-02 13:44:10,325 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2019-10-02 13:44:10,325 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-02 13:44:10,325 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-02 13:44:10,326 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-02 13:44:10,326 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-02 13:44:10,326 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-02 13:44:10,327 INFO L87 Difference]: Start difference. First operand 8282 states and 10870 transitions. Second operand 3 states. [2019-10-02 13:44:10,555 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-02 13:44:10,556 INFO L93 Difference]: Finished difference Result 16827 states and 22276 transitions. [2019-10-02 13:44:10,556 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-02 13:44:10,557 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 237 [2019-10-02 13:44:10,557 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-02 13:44:10,634 INFO L225 Difference]: With dead ends: 16827 [2019-10-02 13:44:10,634 INFO L226 Difference]: Without dead ends: 8610 [2019-10-02 13:44:10,668 INFO L640 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-02 13:44:10,679 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8610 states. [2019-10-02 13:44:11,195 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8610 to 8606. [2019-10-02 13:44:11,196 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8606 states. [2019-10-02 13:44:11,224 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8606 states to 8606 states and 11467 transitions. [2019-10-02 13:44:11,227 INFO L78 Accepts]: Start accepts. Automaton has 8606 states and 11467 transitions. Word has length 237 [2019-10-02 13:44:11,228 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-02 13:44:11,228 INFO L475 AbstractCegarLoop]: Abstraction has 8606 states and 11467 transitions. [2019-10-02 13:44:11,228 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-02 13:44:11,228 INFO L276 IsEmpty]: Start isEmpty. Operand 8606 states and 11467 transitions. [2019-10-02 13:44:11,247 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 239 [2019-10-02 13:44:11,247 INFO L403 BasicCegarLoop]: Found error trace [2019-10-02 13:44:11,248 INFO L411 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-02 13:44:11,248 INFO L418 AbstractCegarLoop]: === Iteration 10 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-02 13:44:11,248 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-02 13:44:11,249 INFO L82 PathProgramCache]: Analyzing trace with hash 636431702, now seen corresponding path program 1 times [2019-10-02 13:44:11,249 INFO L224 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-10-02 13:44:11,249 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-10-02 13:44:11,255 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 13:44:11,255 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-02 13:44:11,256 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 13:44:11,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-02 13:44:11,434 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2019-10-02 13:44:11,434 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-02 13:44:11,434 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-02 13:44:11,436 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-02 13:44:11,436 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-02 13:44:11,436 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-02 13:44:11,436 INFO L87 Difference]: Start difference. First operand 8606 states and 11467 transitions. Second operand 3 states. [2019-10-02 13:44:11,669 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-02 13:44:11,669 INFO L93 Difference]: Finished difference Result 17759 states and 24003 transitions. [2019-10-02 13:44:11,670 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-02 13:44:11,670 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 238 [2019-10-02 13:44:11,670 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-02 13:44:11,731 INFO L225 Difference]: With dead ends: 17759 [2019-10-02 13:44:11,732 INFO L226 Difference]: Without dead ends: 9218 [2019-10-02 13:44:11,765 INFO L640 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-02 13:44:11,777 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9218 states. [2019-10-02 13:44:12,126 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9218 to 9214. [2019-10-02 13:44:12,126 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9214 states. [2019-10-02 13:44:12,162 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9214 states to 9214 states and 12589 transitions. [2019-10-02 13:44:12,165 INFO L78 Accepts]: Start accepts. Automaton has 9214 states and 12589 transitions. Word has length 238 [2019-10-02 13:44:12,166 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-02 13:44:12,166 INFO L475 AbstractCegarLoop]: Abstraction has 9214 states and 12589 transitions. [2019-10-02 13:44:12,167 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-02 13:44:12,167 INFO L276 IsEmpty]: Start isEmpty. Operand 9214 states and 12589 transitions. [2019-10-02 13:44:12,185 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 240 [2019-10-02 13:44:12,185 INFO L403 BasicCegarLoop]: Found error trace [2019-10-02 13:44:12,185 INFO L411 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-02 13:44:12,186 INFO L418 AbstractCegarLoop]: === Iteration 11 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-02 13:44:12,186 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-02 13:44:12,186 INFO L82 PathProgramCache]: Analyzing trace with hash -2128411399, now seen corresponding path program 1 times [2019-10-02 13:44:12,186 INFO L224 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-10-02 13:44:12,186 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-10-02 13:44:12,190 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 13:44:12,191 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-02 13:44:12,191 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 13:44:12,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-02 13:44:13,100 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2019-10-02 13:44:13,101 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-02 13:44:13,101 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-10-02 13:44:13,102 INFO L454 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-10-02 13:44:13,102 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-10-02 13:44:13,102 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2019-10-02 13:44:13,102 INFO L87 Difference]: Start difference. First operand 9214 states and 12589 transitions. Second operand 8 states. [2019-10-02 13:44:17,676 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-02 13:44:17,676 INFO L93 Difference]: Finished difference Result 28008 states and 39757 transitions. [2019-10-02 13:44:17,677 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2019-10-02 13:44:17,677 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 239 [2019-10-02 13:44:17,677 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-02 13:44:17,770 INFO L225 Difference]: With dead ends: 28008 [2019-10-02 13:44:17,770 INFO L226 Difference]: Without dead ends: 18859 [2019-10-02 13:44:17,811 INFO L640 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=61, Invalid=211, Unknown=0, NotChecked=0, Total=272 [2019-10-02 13:44:17,834 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18859 states. [2019-10-02 13:44:18,561 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18859 to 11398. [2019-10-02 13:44:18,561 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11398 states. [2019-10-02 13:44:18,592 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11398 states to 11398 states and 16993 transitions. [2019-10-02 13:44:18,595 INFO L78 Accepts]: Start accepts. Automaton has 11398 states and 16993 transitions. Word has length 239 [2019-10-02 13:44:18,596 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-02 13:44:18,596 INFO L475 AbstractCegarLoop]: Abstraction has 11398 states and 16993 transitions. [2019-10-02 13:44:18,596 INFO L476 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-10-02 13:44:18,596 INFO L276 IsEmpty]: Start isEmpty. Operand 11398 states and 16993 transitions. [2019-10-02 13:44:18,639 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 247 [2019-10-02 13:44:18,639 INFO L403 BasicCegarLoop]: Found error trace [2019-10-02 13:44:18,640 INFO L411 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 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] [2019-10-02 13:44:18,640 INFO L418 AbstractCegarLoop]: === Iteration 12 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-02 13:44:18,640 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-02 13:44:18,641 INFO L82 PathProgramCache]: Analyzing trace with hash -225684679, now seen corresponding path program 1 times [2019-10-02 13:44:18,641 INFO L224 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-10-02 13:44:18,641 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-10-02 13:44:18,645 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 13:44:18,645 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-02 13:44:18,645 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 13:44:18,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-02 13:44:18,863 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2019-10-02 13:44:18,864 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-02 13:44:18,865 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-10-02 13:44:18,865 INFO L454 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-10-02 13:44:18,865 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-10-02 13:44:18,866 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2019-10-02 13:44:18,866 INFO L87 Difference]: Start difference. First operand 11398 states and 16993 transitions. Second operand 8 states. [2019-10-02 13:44:24,017 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-02 13:44:24,018 INFO L93 Difference]: Finished difference Result 35096 states and 55217 transitions. [2019-10-02 13:44:24,018 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2019-10-02 13:44:24,018 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 246 [2019-10-02 13:44:24,019 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-02 13:44:24,149 INFO L225 Difference]: With dead ends: 35096 [2019-10-02 13:44:24,149 INFO L226 Difference]: Without dead ends: 23763 [2019-10-02 13:44:24,190 INFO L640 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=61, Invalid=211, Unknown=0, NotChecked=0, Total=272 [2019-10-02 13:44:24,219 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23763 states. [2019-10-02 13:44:25,411 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23763 to 15886. [2019-10-02 13:44:25,411 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15886 states. [2019-10-02 13:44:25,488 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15886 states to 15886 states and 26641 transitions. [2019-10-02 13:44:25,493 INFO L78 Accepts]: Start accepts. Automaton has 15886 states and 26641 transitions. Word has length 246 [2019-10-02 13:44:25,494 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-02 13:44:25,494 INFO L475 AbstractCegarLoop]: Abstraction has 15886 states and 26641 transitions. [2019-10-02 13:44:25,494 INFO L476 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-10-02 13:44:25,494 INFO L276 IsEmpty]: Start isEmpty. Operand 15886 states and 26641 transitions. [2019-10-02 13:44:25,599 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 242 [2019-10-02 13:44:25,600 INFO L403 BasicCegarLoop]: Found error trace [2019-10-02 13:44:25,602 INFO L411 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-02 13:44:25,603 INFO L418 AbstractCegarLoop]: === Iteration 13 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-02 13:44:25,603 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-02 13:44:25,603 INFO L82 PathProgramCache]: Analyzing trace with hash -1694126859, now seen corresponding path program 1 times [2019-10-02 13:44:25,604 INFO L224 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-10-02 13:44:25,604 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-10-02 13:44:25,609 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 13:44:25,609 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-02 13:44:25,609 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 13:44:25,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-02 13:44:25,833 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2019-10-02 13:44:25,833 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-02 13:44:25,833 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-10-02 13:44:25,834 INFO L454 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-10-02 13:44:25,835 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-10-02 13:44:25,836 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2019-10-02 13:44:25,836 INFO L87 Difference]: Start difference. First operand 15886 states and 26641 transitions. Second operand 8 states. [2019-10-02 13:44:32,469 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-02 13:44:32,470 INFO L93 Difference]: Finished difference Result 49544 states and 88613 transitions. [2019-10-02 13:44:32,470 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2019-10-02 13:44:32,471 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 241 [2019-10-02 13:44:32,471 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-02 13:44:32,755 INFO L225 Difference]: With dead ends: 49544 [2019-10-02 13:44:32,755 INFO L226 Difference]: Without dead ends: 33723 [2019-10-02 13:44:32,838 INFO L640 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=61, Invalid=211, Unknown=0, NotChecked=0, Total=272 [2019-10-02 13:44:32,880 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33723 states. [2019-10-02 13:44:34,941 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33723 to 24990. [2019-10-02 13:44:34,941 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24990 states. [2019-10-02 13:44:35,058 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24990 states to 24990 states and 47477 transitions. [2019-10-02 13:44:35,065 INFO L78 Accepts]: Start accepts. Automaton has 24990 states and 47477 transitions. Word has length 241 [2019-10-02 13:44:35,065 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-02 13:44:35,066 INFO L475 AbstractCegarLoop]: Abstraction has 24990 states and 47477 transitions. [2019-10-02 13:44:35,066 INFO L476 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-10-02 13:44:35,066 INFO L276 IsEmpty]: Start isEmpty. Operand 24990 states and 47477 transitions. [2019-10-02 13:44:35,216 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 246 [2019-10-02 13:44:35,216 INFO L403 BasicCegarLoop]: Found error trace [2019-10-02 13:44:35,217 INFO L411 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-02 13:44:35,217 INFO L418 AbstractCegarLoop]: === Iteration 14 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-02 13:44:35,217 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-02 13:44:35,218 INFO L82 PathProgramCache]: Analyzing trace with hash 1231138441, now seen corresponding path program 1 times [2019-10-02 13:44:35,218 INFO L224 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-10-02 13:44:35,218 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-10-02 13:44:35,222 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 13:44:35,222 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-02 13:44:35,222 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 13:44:35,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-02 13:44:35,513 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2019-10-02 13:44:35,513 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-02 13:44:35,513 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2019-10-02 13:44:35,514 INFO L454 AbstractCegarLoop]: Interpolant automaton has 11 states [2019-10-02 13:44:35,514 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2019-10-02 13:44:35,515 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110 [2019-10-02 13:44:35,515 INFO L87 Difference]: Start difference. First operand 24990 states and 47477 transitions. Second operand 11 states. [2019-10-02 13:44:37,228 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-02 13:44:37,228 INFO L93 Difference]: Finished difference Result 35255 states and 60816 transitions. [2019-10-02 13:44:37,229 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2019-10-02 13:44:37,229 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 245 [2019-10-02 13:44:37,229 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-02 13:44:37,414 INFO L225 Difference]: With dead ends: 35255 [2019-10-02 13:44:37,414 INFO L226 Difference]: Without dead ends: 31388 [2019-10-02 13:44:37,442 INFO L640 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=58, Invalid=322, Unknown=0, NotChecked=0, Total=380 [2019-10-02 13:44:37,474 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31388 states. [2019-10-02 13:44:40,232 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31388 to 31078. [2019-10-02 13:44:40,232 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 31078 states. [2019-10-02 13:44:40,322 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31078 states to 31078 states and 55445 transitions. [2019-10-02 13:44:40,327 INFO L78 Accepts]: Start accepts. Automaton has 31078 states and 55445 transitions. Word has length 245 [2019-10-02 13:44:40,328 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-02 13:44:40,328 INFO L475 AbstractCegarLoop]: Abstraction has 31078 states and 55445 transitions. [2019-10-02 13:44:40,328 INFO L476 AbstractCegarLoop]: Interpolant automaton has 11 states. [2019-10-02 13:44:40,328 INFO L276 IsEmpty]: Start isEmpty. Operand 31078 states and 55445 transitions. [2019-10-02 13:44:40,426 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 253 [2019-10-02 13:44:40,426 INFO L403 BasicCegarLoop]: Found error trace [2019-10-02 13:44:40,426 INFO L411 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 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] [2019-10-02 13:44:40,426 INFO L418 AbstractCegarLoop]: === Iteration 15 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-02 13:44:40,427 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-02 13:44:40,427 INFO L82 PathProgramCache]: Analyzing trace with hash 921094426, now seen corresponding path program 1 times [2019-10-02 13:44:40,427 INFO L224 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-10-02 13:44:40,427 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-10-02 13:44:40,431 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 13:44:40,431 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-02 13:44:40,431 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 13:44:40,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-02 13:44:41,943 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 16 proven. 4 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2019-10-02 13:44:41,944 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-10-02 13:44:41,944 INFO L224 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 [2019-10-02 13:44:42,084 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-02 13:44:42,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-02 13:44:42,582 INFO L256 TraceCheckSpWp]: Trace formula consists of 3158 conjuncts, 8 conjunts are in the unsatisfiable core [2019-10-02 13:44:42,614 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-02 13:44:43,072 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [MP z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (2)] Exception during sending of exit command (exit): Stream Closed [2019-10-02 13:44:43,083 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-10-02 13:44:43,084 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [49] total 55 [2019-10-02 13:44:43,085 INFO L454 AbstractCegarLoop]: Interpolant automaton has 55 states [2019-10-02 13:44:43,086 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 55 interpolants. [2019-10-02 13:44:43,087 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=124, Invalid=2846, Unknown=0, NotChecked=0, Total=2970 [2019-10-02 13:44:43,087 INFO L87 Difference]: Start difference. First operand 31078 states and 55445 transitions. Second operand 55 states. [2019-10-02 13:45:23,893 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-02 13:45:23,894 INFO L93 Difference]: Finished difference Result 197189 states and 336986 transitions. [2019-10-02 13:45:23,894 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 168 states. [2019-10-02 13:45:23,894 INFO L78 Accepts]: Start accepts. Automaton has 55 states. Word has length 252 [2019-10-02 13:45:23,894 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-02 13:45:24,822 INFO L225 Difference]: With dead ends: 197189 [2019-10-02 13:45:24,823 INFO L226 Difference]: Without dead ends: 162076 [2019-10-02 13:45:25,055 INFO L640 BasicCegarLoop]: 0 DeclaredPredicates, 492 GetRequests, 273 SyntacticMatches, 1 SemanticMatches, 218 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14799 ImplicationChecksByTransitivity, 10.0s TimeCoverageRelationStatistics Valid=2054, Invalid=46126, Unknown=0, NotChecked=0, Total=48180 [2019-10-02 13:45:25,219 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 162076 states. [2019-10-02 13:45:37,233 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 162076 to 158551. [2019-10-02 13:45:37,233 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 158551 states. [2019-10-02 13:45:41,045 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 158551 states to 158551 states and 259708 transitions. [2019-10-02 13:45:41,062 INFO L78 Accepts]: Start accepts. Automaton has 158551 states and 259708 transitions. Word has length 252 [2019-10-02 13:45:41,063 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-02 13:45:41,063 INFO L475 AbstractCegarLoop]: Abstraction has 158551 states and 259708 transitions. [2019-10-02 13:45:41,063 INFO L476 AbstractCegarLoop]: Interpolant automaton has 55 states. [2019-10-02 13:45:41,063 INFO L276 IsEmpty]: Start isEmpty. Operand 158551 states and 259708 transitions. [2019-10-02 13:45:41,644 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 255 [2019-10-02 13:45:41,644 INFO L403 BasicCegarLoop]: Found error trace [2019-10-02 13:45:41,645 INFO L411 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 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] [2019-10-02 13:45:41,645 INFO L418 AbstractCegarLoop]: === Iteration 16 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-02 13:45:41,645 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-02 13:45:41,645 INFO L82 PathProgramCache]: Analyzing trace with hash -665550380, now seen corresponding path program 1 times [2019-10-02 13:45:41,645 INFO L224 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-10-02 13:45:41,646 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-10-02 13:45:41,648 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 13:45:41,648 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-02 13:45:41,649 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 13:45:41,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-02 13:45:41,855 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2019-10-02 13:45:41,857 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-02 13:45:41,858 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-02 13:45:41,858 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-02 13:45:41,859 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-02 13:45:41,859 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-02 13:45:41,859 INFO L87 Difference]: Start difference. First operand 158551 states and 259708 transitions. Second operand 3 states. [2019-10-02 13:45:52,263 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-02 13:45:52,263 INFO L93 Difference]: Finished difference Result 349696 states and 602930 transitions. [2019-10-02 13:45:52,263 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-02 13:45:52,264 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 254 [2019-10-02 13:45:52,264 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-02 13:45:53,256 INFO L225 Difference]: With dead ends: 349696 [2019-10-02 13:45:53,256 INFO L226 Difference]: Without dead ends: 191269 [2019-10-02 13:45:53,539 INFO L640 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-02 13:45:53,694 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 191269 states. [2019-10-02 13:46:08,515 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 191269 to 191145. [2019-10-02 13:46:08,515 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 191145 states. [2019-10-02 13:46:09,153 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 191145 states to 191145 states and 342323 transitions. [2019-10-02 13:46:09,182 INFO L78 Accepts]: Start accepts. Automaton has 191145 states and 342323 transitions. Word has length 254 [2019-10-02 13:46:09,183 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-02 13:46:09,183 INFO L475 AbstractCegarLoop]: Abstraction has 191145 states and 342323 transitions. [2019-10-02 13:46:09,183 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-02 13:46:09,183 INFO L276 IsEmpty]: Start isEmpty. Operand 191145 states and 342323 transitions. [2019-10-02 13:46:09,767 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 257 [2019-10-02 13:46:09,767 INFO L403 BasicCegarLoop]: Found error trace [2019-10-02 13:46:09,768 INFO L411 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 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, 1] [2019-10-02 13:46:09,768 INFO L418 AbstractCegarLoop]: === Iteration 17 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-02 13:46:09,768 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-02 13:46:09,768 INFO L82 PathProgramCache]: Analyzing trace with hash -933805910, now seen corresponding path program 1 times [2019-10-02 13:46:09,768 INFO L224 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-10-02 13:46:09,769 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-10-02 13:46:09,772 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 13:46:09,772 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-02 13:46:09,772 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 13:46:09,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-02 13:46:11,791 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 13 proven. 9 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2019-10-02 13:46:11,792 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-10-02 13:46:11,792 INFO L224 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 [2019-10-02 13:46:12,860 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-02 13:46:13,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-02 13:46:13,316 INFO L256 TraceCheckSpWp]: Trace formula consists of 3168 conjuncts, 6 conjunts are in the unsatisfiable core [2019-10-02 13:46:13,325 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-02 13:46:13,636 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [MP z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (3)] Exception during sending of exit command (exit): Broken pipe [2019-10-02 13:46:13,644 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-10-02 13:46:13,644 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [61] total 65 [2019-10-02 13:46:13,645 INFO L454 AbstractCegarLoop]: Interpolant automaton has 65 states [2019-10-02 13:46:13,645 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 65 interpolants. [2019-10-02 13:46:13,646 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=143, Invalid=4017, Unknown=0, NotChecked=0, Total=4160 [2019-10-02 13:46:13,647 INFO L87 Difference]: Start difference. First operand 191145 states and 342323 transitions. Second operand 65 states. [2019-10-02 13:47:26,138 WARN L191 SmtUtils]: Spent 788.00 ms on a formula simplification. DAG size of input: 28 DAG size of output: 25 [2019-10-02 13:47:36,627 WARN L191 SmtUtils]: Spent 5.33 s on a formula simplification. DAG size of input: 32 DAG size of output: 28 [2019-10-02 13:48:15,846 WARN L191 SmtUtils]: Spent 178.00 ms on a formula simplification. DAG size of input: 34 DAG size of output: 27 [2019-10-02 13:51:27,951 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-02 13:51:27,951 INFO L93 Difference]: Finished difference Result 1708884 states and 2803340 transitions. [2019-10-02 13:51:27,952 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 959 states. [2019-10-02 13:51:27,952 INFO L78 Accepts]: Start accepts. Automaton has 65 states. Word has length 256 [2019-10-02 13:51:27,952 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-02 13:51:35,718 INFO L225 Difference]: With dead ends: 1708884 [2019-10-02 13:51:35,719 INFO L226 Difference]: Without dead ends: 1529797 [2019-10-02 13:51:36,574 INFO L640 BasicCegarLoop]: 0 DeclaredPredicates, 1420 GetRequests, 399 SyntacticMatches, 2 SemanticMatches, 1019 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 458799 ImplicationChecksByTransitivity, 66.1s TimeCoverageRelationStatistics Valid=30882, Invalid=1010538, Unknown=0, NotChecked=0, Total=1041420 [2019-10-02 13:51:39,000 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1529797 states.