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_spec8_product22.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-112bae1 [2019-09-08 05:43:25,901 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-09-08 05:43:25,903 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-09-08 05:43:25,915 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-09-08 05:43:25,916 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-09-08 05:43:25,917 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-09-08 05:43:25,918 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-09-08 05:43:25,920 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-09-08 05:43:25,922 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-09-08 05:43:25,922 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-09-08 05:43:25,923 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-09-08 05:43:25,925 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-09-08 05:43:25,925 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-09-08 05:43:25,926 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-09-08 05:43:25,927 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-09-08 05:43:25,928 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-09-08 05:43:25,929 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-09-08 05:43:25,930 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-09-08 05:43:25,931 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-09-08 05:43:25,933 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-09-08 05:43:25,935 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-09-08 05:43:25,936 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-09-08 05:43:25,937 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-09-08 05:43:25,938 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-09-08 05:43:25,940 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-09-08 05:43:25,940 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-09-08 05:43:25,940 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-09-08 05:43:25,941 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-09-08 05:43:25,942 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-09-08 05:43:25,942 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-09-08 05:43:25,943 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-09-08 05:43:25,943 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-09-08 05:43:25,944 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-09-08 05:43:25,945 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-09-08 05:43:25,946 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-09-08 05:43:25,946 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-09-08 05:43:25,947 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-09-08 05:43:25,947 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-09-08 05:43:25,947 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-09-08 05:43:25,948 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-09-08 05:43:25,949 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-09-08 05:43:25,950 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2019-09-08 05:43:25,964 INFO L113 SettingsManager]: Loading preferences was successful [2019-09-08 05:43:25,964 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-09-08 05:43:25,965 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-09-08 05:43:25,966 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-09-08 05:43:25,966 INFO L138 SettingsManager]: * Use SBE=true [2019-09-08 05:43:25,966 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-09-08 05:43:25,966 INFO L138 SettingsManager]: * sizeof long=4 [2019-09-08 05:43:25,966 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-09-08 05:43:25,967 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-09-08 05:43:25,967 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-09-08 05:43:25,967 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-09-08 05:43:25,967 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-09-08 05:43:25,967 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-09-08 05:43:25,968 INFO L138 SettingsManager]: * sizeof long double=12 [2019-09-08 05:43:25,968 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-09-08 05:43:25,968 INFO L138 SettingsManager]: * Use constant arrays=true [2019-09-08 05:43:25,968 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-09-08 05:43:25,968 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-09-08 05:43:25,969 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-09-08 05:43:25,969 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-09-08 05:43:25,969 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-09-08 05:43:25,969 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-09-08 05:43:25,969 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-09-08 05:43:25,970 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-09-08 05:43:25,970 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-09-08 05:43:25,970 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-09-08 05:43:25,972 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-09-08 05:43:25,972 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-09-08 05:43:25,972 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-09-08 05:43:26,022 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-09-08 05:43:26,035 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-09-08 05:43:26,038 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-09-08 05:43:26,039 INFO L271 PluginConnector]: Initializing CDTParser... [2019-09-08 05:43:26,040 INFO L275 PluginConnector]: CDTParser initialized [2019-09-08 05:43:26,041 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/email_spec8_product22.cil.c [2019-09-08 05:43:26,121 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ba58853b9/6d9a829d35eb4bee9e54c13a85749fd6/FLAGbfe84cc5d [2019-09-08 05:43:26,790 INFO L306 CDTParser]: Found 1 translation units. [2019-09-08 05:43:26,793 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/email_spec8_product22.cil.c [2019-09-08 05:43:26,814 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ba58853b9/6d9a829d35eb4bee9e54c13a85749fd6/FLAGbfe84cc5d [2019-09-08 05:43:26,986 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ba58853b9/6d9a829d35eb4bee9e54c13a85749fd6 [2019-09-08 05:43:26,997 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-09-08 05:43:26,998 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-09-08 05:43:26,999 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-09-08 05:43:26,999 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-09-08 05:43:27,002 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-09-08 05:43:27,003 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.09 05:43:26" (1/1) ... [2019-09-08 05:43:27,005 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@485875dd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 05:43:27, skipping insertion in model container [2019-09-08 05:43:27,005 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.09 05:43:26" (1/1) ... [2019-09-08 05:43:27,012 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-09-08 05:43:27,083 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-09-08 05:43:27,921 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-08 05:43:27,951 INFO L188 MainTranslator]: Completed pre-run [2019-09-08 05:43:28,111 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-08 05:43:28,225 INFO L192 MainTranslator]: Completed translation [2019-09-08 05:43:28,226 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 05:43:28 WrapperNode [2019-09-08 05:43:28,226 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-09-08 05:43:28,227 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-09-08 05:43:28,227 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-09-08 05:43:28,227 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-09-08 05:43:28,241 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 05:43:28" (1/1) ... [2019-09-08 05:43:28,242 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 05:43:28" (1/1) ... [2019-09-08 05:43:28,307 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 05:43:28" (1/1) ... [2019-09-08 05:43:28,308 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 05:43:28" (1/1) ... [2019-09-08 05:43:28,365 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 05:43:28" (1/1) ... [2019-09-08 05:43:28,399 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 05:43:28" (1/1) ... [2019-09-08 05:43:28,422 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 05:43:28" (1/1) ... [2019-09-08 05:43:28,439 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-09-08 05:43:28,440 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-09-08 05:43:28,440 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-09-08 05:43:28,440 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-09-08 05:43:28,441 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 05:43:28" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-09-08 05:43:28,511 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-09-08 05:43:28,511 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-09-08 05:43:28,511 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-09-08 05:43:28,511 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob__wrappee__Base [2019-09-08 05:43:28,512 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob [2019-09-08 05:43:28,512 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh__wrappee__Base [2019-09-08 05:43:28,513 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh [2019-09-08 05:43:28,513 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck__wrappee__Base [2019-09-08 05:43:28,513 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck [2019-09-08 05:43:28,513 INFO L138 BoogieDeclarations]: Found implementation of procedure bobToRjh [2019-09-08 05:43:28,513 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhToBob [2019-09-08 05:43:28,514 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-09-08 05:43:28,514 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-09-08 05:43:28,515 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAdd [2019-09-08 05:43:28,515 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAdd [2019-09-08 05:43:28,516 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAddChuck [2019-09-08 05:43:28,518 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAddChuck [2019-09-08 05:43:28,518 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2019-09-08 05:43:28,518 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAddRjh [2019-09-08 05:43:28,519 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhDeletePrivateKey [2019-09-08 05:43:28,519 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyChange [2019-09-08 05:43:28,520 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyChange [2019-09-08 05:43:28,520 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhSetAutoRespond [2019-09-08 05:43:28,520 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhEnableForwarding [2019-09-08 05:43:28,520 INFO L138 BoogieDeclarations]: Found implementation of procedure initEmail [2019-09-08 05:43:28,520 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailId [2019-09-08 05:43:28,520 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailId [2019-09-08 05:43:28,521 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2019-09-08 05:43:28,521 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2019-09-08 05:43:28,521 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2019-09-08 05:43:28,521 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2019-09-08 05:43:28,521 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSubject [2019-09-08 05:43:28,521 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSubject [2019-09-08 05:43:28,522 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailBody [2019-09-08 05:43:28,522 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailBody [2019-09-08 05:43:28,522 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2019-09-08 05:43:28,522 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2019-09-08 05:43:28,522 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2019-09-08 05:43:28,522 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2019-09-08 05:43:28,523 INFO L138 BoogieDeclarations]: Found implementation of procedure isSigned [2019-09-08 05:43:28,523 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSigned [2019-09-08 05:43:28,523 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSignKey [2019-09-08 05:43:28,523 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSignKey [2019-09-08 05:43:28,523 INFO L138 BoogieDeclarations]: Found implementation of procedure isVerified [2019-09-08 05:43:28,523 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSignatureVerified [2019-09-08 05:43:28,524 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-09-08 05:43:28,524 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-09-08 05:43:28,524 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-09-08 05:43:28,524 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-09-08 05:43:28,524 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-09-08 05:43:28,524 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-09-08 05:43:28,524 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-09-08 05:43:28,525 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-09-08 05:43:28,525 INFO L138 BoogieDeclarations]: Found implementation of procedure prompt [2019-09-08 05:43:28,525 INFO L138 BoogieDeclarations]: Found implementation of procedure mail [2019-09-08 05:43:28,525 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__Keys [2019-09-08 05:43:28,525 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2019-09-08 05:43:28,525 INFO L138 BoogieDeclarations]: Found implementation of procedure deliver [2019-09-08 05:43:28,525 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Encrypt [2019-09-08 05:43:28,526 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__AutoResponder [2019-09-08 05:43:28,526 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Forward [2019-09-08 05:43:28,526 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming [2019-09-08 05:43:28,526 INFO L138 BoogieDeclarations]: Found implementation of procedure createClient [2019-09-08 05:43:28,527 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2019-09-08 05:43:28,527 INFO L138 BoogieDeclarations]: Found implementation of procedure queue [2019-09-08 05:43:28,527 INFO L138 BoogieDeclarations]: Found implementation of procedure is_queue_empty [2019-09-08 05:43:28,527 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_client [2019-09-08 05:43:28,527 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_email [2019-09-08 05:43:28,528 INFO L138 BoogieDeclarations]: Found implementation of procedure isKeyPairValid [2019-09-08 05:43:28,528 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2019-09-08 05:43:28,528 INFO L138 BoogieDeclarations]: Found implementation of procedure autoRespond [2019-09-08 05:43:28,528 INFO L138 BoogieDeclarations]: Found implementation of procedure forward [2019-09-08 05:43:28,528 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-09-08 05:43:28,528 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-09-08 05:43:28,528 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-09-08 05:43:28,529 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-09-08 05:43:28,529 INFO L138 BoogieDeclarations]: Found implementation of procedure initClient [2019-09-08 05:43:28,529 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientName [2019-09-08 05:43:28,529 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientName [2019-09-08 05:43:28,529 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientOutbuffer [2019-09-08 05:43:28,529 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientOutbuffer [2019-09-08 05:43:28,529 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookSize [2019-09-08 05:43:28,530 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookSize [2019-09-08 05:43:28,530 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientAddressBookEntry [2019-09-08 05:43:28,530 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAlias [2019-09-08 05:43:28,530 INFO L138 BoogieDeclarations]: Found implementation of procedure findClientAddressBookAlias [2019-09-08 05:43:28,530 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAlias [2019-09-08 05:43:28,530 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAddress [2019-09-08 05:43:28,531 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAddress [2019-09-08 05:43:28,531 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAutoResponse [2019-09-08 05:43:28,531 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAutoResponse [2019-09-08 05:43:28,531 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientPrivateKey [2019-09-08 05:43:28,531 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2019-09-08 05:43:28,531 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringSize [2019-09-08 05:43:28,531 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringSize [2019-09-08 05:43:28,532 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2019-09-08 05:43:28,532 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringUser [2019-09-08 05:43:28,533 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2019-09-08 05:43:28,533 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringPublicKey [2019-09-08 05:43:28,533 INFO L138 BoogieDeclarations]: Found implementation of procedure findPublicKey [2019-09-08 05:43:28,533 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2019-09-08 05:43:28,534 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientForwardReceiver [2019-09-08 05:43:28,534 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientForwardReceiver [2019-09-08 05:43:28,534 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientId [2019-09-08 05:43:28,534 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2019-09-08 05:43:28,534 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__Keys [2019-09-08 05:43:28,534 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail [2019-09-08 05:43:28,534 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable__wrappee__Keys [2019-09-08 05:43:28,534 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2019-09-08 05:43:28,534 INFO L138 BoogieDeclarations]: Found implementation of procedure cloneEmail [2019-09-08 05:43:28,534 INFO L138 BoogieDeclarations]: Found implementation of procedure createEmail [2019-09-08 05:43:28,534 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__EncryptAutoResponder_spec__1 [2019-09-08 05:43:28,535 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__EncryptAutoResponder_spec__2 [2019-09-08 05:43:28,535 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-09-08 05:43:28,535 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-09-08 05:43:28,535 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-09-08 05:43:28,535 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2019-09-08 05:43:28,535 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAutoResponse [2019-09-08 05:43:28,535 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2019-09-08 05:43:28,536 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2019-09-08 05:43:28,536 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringUser [2019-09-08 05:43:28,536 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2019-09-08 05:43:28,536 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringPublicKey [2019-09-08 05:43:28,536 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2019-09-08 05:43:28,536 INFO L130 BoogieDeclarations]: Found specification of procedure setClientForwardReceiver [2019-09-08 05:43:28,536 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2019-09-08 05:43:28,537 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-09-08 05:43:28,537 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-09-08 05:43:28,537 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-09-08 05:43:28,537 INFO L130 BoogieDeclarations]: Found specification of procedure is_queue_empty [2019-09-08 05:43:28,537 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_client [2019-09-08 05:43:28,537 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_email [2019-09-08 05:43:28,538 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2019-09-08 05:43:28,538 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2019-09-08 05:43:28,538 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2019-09-08 05:43:28,538 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob [2019-09-08 05:43:28,538 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh [2019-09-08 05:43:28,538 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck [2019-09-08 05:43:28,538 INFO L130 BoogieDeclarations]: Found specification of procedure bobToRjh [2019-09-08 05:43:28,539 INFO L130 BoogieDeclarations]: Found specification of procedure rjhToBob [2019-09-08 05:43:28,539 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-09-08 05:43:28,539 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-09-08 05:43:28,539 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-09-08 05:43:28,539 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAdd [2019-09-08 05:43:28,539 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAddChuck [2019-09-08 05:43:28,540 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAdd [2019-09-08 05:43:28,540 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAddChuck [2019-09-08 05:43:28,540 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2019-09-08 05:43:28,540 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyChange [2019-09-08 05:43:28,540 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyChange [2019-09-08 05:43:28,540 INFO L130 BoogieDeclarations]: Found specification of procedure rjhDeletePrivateKey [2019-09-08 05:43:28,540 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAddRjh [2019-09-08 05:43:28,541 INFO L130 BoogieDeclarations]: Found specification of procedure rjhSetAutoRespond [2019-09-08 05:43:28,541 INFO L130 BoogieDeclarations]: Found specification of procedure rjhEnableForwarding [2019-09-08 05:43:28,541 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob__wrappee__Base [2019-09-08 05:43:28,541 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh__wrappee__Base [2019-09-08 05:43:28,541 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck__wrappee__Base [2019-09-08 05:43:28,541 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-09-08 05:43:28,541 INFO L130 BoogieDeclarations]: Found specification of procedure initEmail [2019-09-08 05:43:28,542 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailId [2019-09-08 05:43:28,542 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailId [2019-09-08 05:43:28,542 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2019-09-08 05:43:28,542 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2019-09-08 05:43:28,542 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2019-09-08 05:43:28,542 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2019-09-08 05:43:28,542 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSubject [2019-09-08 05:43:28,542 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSubject [2019-09-08 05:43:28,543 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailBody [2019-09-08 05:43:28,543 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailBody [2019-09-08 05:43:28,543 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2019-09-08 05:43:28,543 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2019-09-08 05:43:28,543 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2019-09-08 05:43:28,543 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2019-09-08 05:43:28,543 INFO L130 BoogieDeclarations]: Found specification of procedure isSigned [2019-09-08 05:43:28,543 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSigned [2019-09-08 05:43:28,544 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSignKey [2019-09-08 05:43:28,544 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSignKey [2019-09-08 05:43:28,544 INFO L130 BoogieDeclarations]: Found specification of procedure isVerified [2019-09-08 05:43:28,544 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSignatureVerified [2019-09-08 05:43:28,544 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-09-08 05:43:28,544 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-09-08 05:43:28,544 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-09-08 05:43:28,545 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-09-08 05:43:28,545 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-09-08 05:43:28,545 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-09-08 05:43:28,545 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-09-08 05:43:28,545 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-09-08 05:43:28,545 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-09-08 05:43:28,545 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-09-08 05:43:28,546 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-09-08 05:43:28,546 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-09-08 05:43:28,546 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-09-08 05:43:28,546 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-09-08 05:43:28,546 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-09-08 05:43:28,546 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-09-08 05:43:28,547 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-09-08 05:43:28,547 INFO L130 BoogieDeclarations]: Found specification of procedure prompt [2019-09-08 05:43:28,547 INFO L130 BoogieDeclarations]: Found specification of procedure initClient [2019-09-08 05:43:28,547 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAutoResponse [2019-09-08 05:43:28,547 INFO L130 BoogieDeclarations]: Found specification of procedure getClientPrivateKey [2019-09-08 05:43:28,547 INFO L130 BoogieDeclarations]: Found specification of procedure getClientForwardReceiver [2019-09-08 05:43:28,548 INFO L130 BoogieDeclarations]: Found specification of procedure getClientId [2019-09-08 05:43:28,548 INFO L130 BoogieDeclarations]: Found specification of procedure findPublicKey [2019-09-08 05:43:28,548 INFO L130 BoogieDeclarations]: Found specification of procedure printMail [2019-09-08 05:43:28,548 INFO L130 BoogieDeclarations]: Found specification of procedure createEmail [2019-09-08 05:43:28,548 INFO L130 BoogieDeclarations]: Found specification of procedure queue [2019-09-08 05:43:28,548 INFO L130 BoogieDeclarations]: Found specification of procedure mail [2019-09-08 05:43:28,549 INFO L130 BoogieDeclarations]: Found specification of procedure deliver [2019-09-08 05:43:28,549 INFO L130 BoogieDeclarations]: Found specification of procedure incoming [2019-09-08 05:43:28,549 INFO L130 BoogieDeclarations]: Found specification of procedure createClient [2019-09-08 05:43:28,549 INFO L130 BoogieDeclarations]: Found specification of procedure isKeyPairValid [2019-09-08 05:43:28,549 INFO L130 BoogieDeclarations]: Found specification of procedure autoRespond [2019-09-08 05:43:28,549 INFO L130 BoogieDeclarations]: Found specification of procedure forward [2019-09-08 05:43:28,550 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__EncryptAutoResponder_spec__2 [2019-09-08 05:43:28,550 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__Keys [2019-09-08 05:43:28,550 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Encrypt [2019-09-08 05:43:28,550 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__AutoResponder [2019-09-08 05:43:28,550 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Forward [2019-09-08 05:43:28,550 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__EncryptAutoResponder_spec__1 [2019-09-08 05:43:28,551 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-09-08 05:43:28,551 INFO L130 BoogieDeclarations]: Found specification of procedure getClientName [2019-09-08 05:43:28,551 INFO L130 BoogieDeclarations]: Found specification of procedure setClientName [2019-09-08 05:43:28,551 INFO L130 BoogieDeclarations]: Found specification of procedure getClientOutbuffer [2019-09-08 05:43:28,551 INFO L130 BoogieDeclarations]: Found specification of procedure setClientOutbuffer [2019-09-08 05:43:28,551 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookSize [2019-09-08 05:43:28,552 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookSize [2019-09-08 05:43:28,552 INFO L130 BoogieDeclarations]: Found specification of procedure createClientAddressBookEntry [2019-09-08 05:43:28,552 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAlias [2019-09-08 05:43:28,552 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAlias [2019-09-08 05:43:28,552 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAddress [2019-09-08 05:43:28,552 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAddress [2019-09-08 05:43:28,552 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringSize [2019-09-08 05:43:28,553 INFO L130 BoogieDeclarations]: Found specification of procedure findClientAddressBookAlias [2019-09-08 05:43:28,553 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringSize [2019-09-08 05:43:28,553 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2019-09-08 05:43:28,553 INFO L130 BoogieDeclarations]: Found specification of procedure cloneEmail [2019-09-08 05:43:28,553 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__Keys [2019-09-08 05:43:28,553 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable__wrappee__Keys [2019-09-08 05:43:28,554 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-09-08 05:43:28,554 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-09-08 05:43:28,554 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-09-08 05:43:30,426 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-09-08 05:43:30,426 INFO L283 CfgBuilder]: Removed 4 assume(true) statements. [2019-09-08 05:43:30,428 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.09 05:43:30 BoogieIcfgContainer [2019-09-08 05:43:30,428 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-09-08 05:43:30,431 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-09-08 05:43:30,431 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-09-08 05:43:30,434 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-09-08 05:43:30,435 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.09 05:43:26" (1/3) ... [2019-09-08 05:43:30,436 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@25c4cef5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.09 05:43:30, skipping insertion in model container [2019-09-08 05:43:30,436 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 05:43:28" (2/3) ... [2019-09-08 05:43:30,437 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@25c4cef5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.09 05:43:30, skipping insertion in model container [2019-09-08 05:43:30,437 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.09 05:43:30" (3/3) ... [2019-09-08 05:43:30,439 INFO L109 eAbstractionObserver]: Analyzing ICFG email_spec8_product22.cil.c [2019-09-08 05:43:30,449 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-09-08 05:43:30,462 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-09-08 05:43:30,481 INFO L252 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-09-08 05:43:30,532 INFO L128 ementStrategyFactory]: Using default assertion order modulation [2019-09-08 05:43:30,533 INFO L377 AbstractCegarLoop]: Interprodecural is true [2019-09-08 05:43:30,533 INFO L378 AbstractCegarLoop]: Hoare is true [2019-09-08 05:43:30,533 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-09-08 05:43:30,533 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-09-08 05:43:30,533 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-09-08 05:43:30,533 INFO L382 AbstractCegarLoop]: Difference is false [2019-09-08 05:43:30,533 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-09-08 05:43:30,534 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-09-08 05:43:30,575 INFO L276 IsEmpty]: Start isEmpty. Operand 512 states. [2019-09-08 05:43:30,601 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2019-09-08 05:43:30,601 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 05:43:30,603 INFO L399 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-08 05:43:30,605 INFO L418 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 05:43:30,611 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 05:43:30,611 INFO L82 PathProgramCache]: Analyzing trace with hash 145305660, now seen corresponding path program 1 times [2019-09-08 05:43:30,613 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 05:43:30,614 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 05:43:30,662 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 05:43:30,662 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 05:43:30,663 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 05:43:30,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 05:43:31,190 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2019-09-08 05:43:31,193 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-08 05:43:31,193 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-09-08 05:43:31,199 INFO L454 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-09-08 05:43:31,213 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-09-08 05:43:31,214 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-09-08 05:43:31,216 INFO L87 Difference]: Start difference. First operand 512 states. Second operand 2 states. [2019-09-08 05:43:31,293 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-08 05:43:31,293 INFO L93 Difference]: Finished difference Result 755 states and 991 transitions. [2019-09-08 05:43:31,294 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-09-08 05:43:31,295 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 145 [2019-09-08 05:43:31,296 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-08 05:43:31,320 INFO L225 Difference]: With dead ends: 755 [2019-09-08 05:43:31,320 INFO L226 Difference]: Without dead ends: 489 [2019-09-08 05:43:31,327 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-09-08 05:43:31,350 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 489 states. [2019-09-08 05:43:31,419 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 489 to 489. [2019-09-08 05:43:31,421 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 489 states. [2019-09-08 05:43:31,434 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 489 states to 489 states and 647 transitions. [2019-09-08 05:43:31,437 INFO L78 Accepts]: Start accepts. Automaton has 489 states and 647 transitions. Word has length 145 [2019-09-08 05:43:31,440 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-08 05:43:31,440 INFO L475 AbstractCegarLoop]: Abstraction has 489 states and 647 transitions. [2019-09-08 05:43:31,440 INFO L476 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-09-08 05:43:31,440 INFO L276 IsEmpty]: Start isEmpty. Operand 489 states and 647 transitions. [2019-09-08 05:43:31,450 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2019-09-08 05:43:31,450 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 05:43:31,450 INFO L399 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-08 05:43:31,451 INFO L418 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 05:43:31,452 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 05:43:31,452 INFO L82 PathProgramCache]: Analyzing trace with hash 1475603101, now seen corresponding path program 1 times [2019-09-08 05:43:31,452 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 05:43:31,453 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 05:43:31,454 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 05:43:31,454 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 05:43:31,454 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 05:43:31,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 05:43:31,766 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2019-09-08 05:43:31,767 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-08 05:43:31,767 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-08 05:43:31,770 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-08 05:43:31,771 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-08 05:43:31,771 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-08 05:43:31,771 INFO L87 Difference]: Start difference. First operand 489 states and 647 transitions. Second operand 3 states. [2019-09-08 05:43:31,834 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-08 05:43:31,835 INFO L93 Difference]: Finished difference Result 738 states and 960 transitions. [2019-09-08 05:43:31,839 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-08 05:43:31,839 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 146 [2019-09-08 05:43:31,840 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-08 05:43:31,848 INFO L225 Difference]: With dead ends: 738 [2019-09-08 05:43:31,848 INFO L226 Difference]: Without dead ends: 492 [2019-09-08 05:43:31,851 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-08 05:43:31,853 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 492 states. [2019-09-08 05:43:31,884 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 492 to 491. [2019-09-08 05:43:31,885 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 491 states. [2019-09-08 05:43:31,889 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 491 states to 491 states and 649 transitions. [2019-09-08 05:43:31,889 INFO L78 Accepts]: Start accepts. Automaton has 491 states and 649 transitions. Word has length 146 [2019-09-08 05:43:31,890 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-08 05:43:31,890 INFO L475 AbstractCegarLoop]: Abstraction has 491 states and 649 transitions. [2019-09-08 05:43:31,890 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-08 05:43:31,890 INFO L276 IsEmpty]: Start isEmpty. Operand 491 states and 649 transitions. [2019-09-08 05:43:31,893 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2019-09-08 05:43:31,894 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 05:43:31,894 INFO L399 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-08 05:43:31,894 INFO L418 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 05:43:31,894 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 05:43:31,895 INFO L82 PathProgramCache]: Analyzing trace with hash -1631744993, now seen corresponding path program 1 times [2019-09-08 05:43:31,895 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 05:43:31,895 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 05:43:31,896 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 05:43:31,896 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 05:43:31,896 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 05:43:31,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 05:43:32,055 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2019-09-08 05:43:32,056 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-08 05:43:32,056 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-08 05:43:32,056 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-08 05:43:32,059 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-08 05:43:32,059 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-08 05:43:32,059 INFO L87 Difference]: Start difference. First operand 491 states and 649 transitions. Second operand 3 states. [2019-09-08 05:43:32,105 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-08 05:43:32,106 INFO L93 Difference]: Finished difference Result 960 states and 1299 transitions. [2019-09-08 05:43:32,106 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-08 05:43:32,106 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 158 [2019-09-08 05:43:32,107 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-08 05:43:32,111 INFO L225 Difference]: With dead ends: 960 [2019-09-08 05:43:32,111 INFO L226 Difference]: Without dead ends: 534 [2019-09-08 05:43:32,114 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-08 05:43:32,115 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 534 states. [2019-09-08 05:43:32,135 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 534 to 533. [2019-09-08 05:43:32,135 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 533 states. [2019-09-08 05:43:32,139 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 533 states to 533 states and 721 transitions. [2019-09-08 05:43:32,139 INFO L78 Accepts]: Start accepts. Automaton has 533 states and 721 transitions. Word has length 158 [2019-09-08 05:43:32,140 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-08 05:43:32,140 INFO L475 AbstractCegarLoop]: Abstraction has 533 states and 721 transitions. [2019-09-08 05:43:32,140 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-08 05:43:32,140 INFO L276 IsEmpty]: Start isEmpty. Operand 533 states and 721 transitions. [2019-09-08 05:43:32,144 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2019-09-08 05:43:32,144 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 05:43:32,144 INFO L399 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-08 05:43:32,145 INFO L418 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 05:43:32,145 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 05:43:32,145 INFO L82 PathProgramCache]: Analyzing trace with hash 34916284, now seen corresponding path program 1 times [2019-09-08 05:43:32,145 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 05:43:32,145 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 05:43:32,146 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 05:43:32,146 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 05:43:32,147 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 05:43:32,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 05:43:32,327 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2019-09-08 05:43:32,328 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-08 05:43:32,328 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-08 05:43:32,329 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-08 05:43:32,329 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-08 05:43:32,330 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-08 05:43:32,330 INFO L87 Difference]: Start difference. First operand 533 states and 721 transitions. Second operand 3 states. [2019-09-08 05:43:32,371 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-08 05:43:32,371 INFO L93 Difference]: Finished difference Result 1083 states and 1510 transitions. [2019-09-08 05:43:32,371 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-08 05:43:32,372 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 159 [2019-09-08 05:43:32,372 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-08 05:43:32,376 INFO L225 Difference]: With dead ends: 1083 [2019-09-08 05:43:32,376 INFO L226 Difference]: Without dead ends: 615 [2019-09-08 05:43:32,379 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-08 05:43:32,380 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 615 states. [2019-09-08 05:43:32,400 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 615 to 614. [2019-09-08 05:43:32,400 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 614 states. [2019-09-08 05:43:32,404 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 614 states to 614 states and 859 transitions. [2019-09-08 05:43:32,405 INFO L78 Accepts]: Start accepts. Automaton has 614 states and 859 transitions. Word has length 159 [2019-09-08 05:43:32,405 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-08 05:43:32,406 INFO L475 AbstractCegarLoop]: Abstraction has 614 states and 859 transitions. [2019-09-08 05:43:32,406 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-08 05:43:32,406 INFO L276 IsEmpty]: Start isEmpty. Operand 614 states and 859 transitions. [2019-09-08 05:43:32,410 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2019-09-08 05:43:32,410 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 05:43:32,410 INFO L399 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-08 05:43:32,410 INFO L418 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 05:43:32,411 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 05:43:32,411 INFO L82 PathProgramCache]: Analyzing trace with hash 1085880483, now seen corresponding path program 1 times [2019-09-08 05:43:32,411 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 05:43:32,411 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 05:43:32,412 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 05:43:32,412 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 05:43:32,412 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 05:43:32,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 05:43:32,573 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2019-09-08 05:43:32,574 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-08 05:43:32,574 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-08 05:43:32,575 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-08 05:43:32,575 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-08 05:43:32,575 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-08 05:43:32,575 INFO L87 Difference]: Start difference. First operand 614 states and 859 transitions. Second operand 3 states. [2019-09-08 05:43:32,613 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-08 05:43:32,613 INFO L93 Difference]: Finished difference Result 924 states and 1264 transitions. [2019-09-08 05:43:32,613 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-08 05:43:32,614 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 162 [2019-09-08 05:43:32,614 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-08 05:43:32,619 INFO L225 Difference]: With dead ends: 924 [2019-09-08 05:43:32,619 INFO L226 Difference]: Without dead ends: 680 [2019-09-08 05:43:32,621 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-08 05:43:32,622 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 680 states. [2019-09-08 05:43:32,647 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 680 to 680. [2019-09-08 05:43:32,647 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 680 states. [2019-09-08 05:43:32,652 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 680 states to 680 states and 947 transitions. [2019-09-08 05:43:32,652 INFO L78 Accepts]: Start accepts. Automaton has 680 states and 947 transitions. Word has length 162 [2019-09-08 05:43:32,653 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-08 05:43:32,653 INFO L475 AbstractCegarLoop]: Abstraction has 680 states and 947 transitions. [2019-09-08 05:43:32,653 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-08 05:43:32,653 INFO L276 IsEmpty]: Start isEmpty. Operand 680 states and 947 transitions. [2019-09-08 05:43:32,659 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 281 [2019-09-08 05:43:32,660 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 05:43:32,660 INFO L399 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-08 05:43:32,660 INFO L418 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 05:43:32,661 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 05:43:32,661 INFO L82 PathProgramCache]: Analyzing trace with hash 1436879733, now seen corresponding path program 1 times [2019-09-08 05:43:32,661 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 05:43:32,661 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 05:43:32,662 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 05:43:32,662 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 05:43:32,662 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 05:43:32,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 05:43:33,235 INFO L134 CoverageAnalysis]: Checked inductivity of 79 backedges. 16 proven. 8 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2019-09-08 05:43:33,235 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-08 05:43:33,235 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-09-08 05:43:33,255 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 05:43:33,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 05:43:33,699 INFO L256 TraceCheckSpWp]: Trace formula consists of 3065 conjuncts, 8 conjunts are in the unsatisfiable core [2019-09-08 05:43:33,727 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-09-08 05:43:34,258 INFO L134 CoverageAnalysis]: Checked inductivity of 79 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [MP z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (2)] Exception during sending of exit command (exit): Broken pipe [2019-09-08 05:43:34,268 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-09-08 05:43:34,269 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [22] total 29 [2019-09-08 05:43:34,270 INFO L454 AbstractCegarLoop]: Interpolant automaton has 29 states [2019-09-08 05:43:34,270 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2019-09-08 05:43:34,271 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=746, Unknown=0, NotChecked=0, Total=812 [2019-09-08 05:43:34,271 INFO L87 Difference]: Start difference. First operand 680 states and 947 transitions. Second operand 29 states. [2019-09-08 05:44:00,847 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-08 05:44:00,847 INFO L93 Difference]: Finished difference Result 3185 states and 4443 transitions. [2019-09-08 05:44:00,848 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 107 states. [2019-09-08 05:44:00,848 INFO L78 Accepts]: Start accepts. Automaton has 29 states. Word has length 280 [2019-09-08 05:44:00,848 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-08 05:44:00,867 INFO L225 Difference]: With dead ends: 3185 [2019-09-08 05:44:00,867 INFO L226 Difference]: Without dead ends: 2535 [2019-09-08 05:44:00,877 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 430 GetRequests, 300 SyntacticMatches, 0 SemanticMatches, 130 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5318 ImplicationChecksByTransitivity, 3.1s TimeCoverageRelationStatistics Valid=1357, Invalid=15935, Unknown=0, NotChecked=0, Total=17292 [2019-09-08 05:44:00,881 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2535 states. [2019-09-08 05:44:01,037 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2535 to 2232. [2019-09-08 05:44:01,038 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2232 states. [2019-09-08 05:44:01,048 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2232 states to 2232 states and 3119 transitions. [2019-09-08 05:44:01,049 INFO L78 Accepts]: Start accepts. Automaton has 2232 states and 3119 transitions. Word has length 280 [2019-09-08 05:44:01,049 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-08 05:44:01,049 INFO L475 AbstractCegarLoop]: Abstraction has 2232 states and 3119 transitions. [2019-09-08 05:44:01,049 INFO L476 AbstractCegarLoop]: Interpolant automaton has 29 states. [2019-09-08 05:44:01,050 INFO L276 IsEmpty]: Start isEmpty. Operand 2232 states and 3119 transitions. [2019-09-08 05:44:01,063 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 286 [2019-09-08 05:44:01,064 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 05:44:01,064 INFO L399 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-08 05:44:01,065 INFO L418 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 05:44:01,065 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 05:44:01,065 INFO L82 PathProgramCache]: Analyzing trace with hash 242025523, now seen corresponding path program 1 times [2019-09-08 05:44:01,065 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 05:44:01,065 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 05:44:01,066 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 05:44:01,067 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 05:44:01,067 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 05:44:01,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 05:44:01,320 INFO L134 CoverageAnalysis]: Checked inductivity of 79 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 63 trivial. 0 not checked. [2019-09-08 05:44:01,320 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-08 05:44:01,320 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-09-08 05:44:01,323 INFO L454 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-09-08 05:44:01,323 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-09-08 05:44:01,324 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-09-08 05:44:01,324 INFO L87 Difference]: Start difference. First operand 2232 states and 3119 transitions. Second operand 5 states. [2019-09-08 05:44:01,470 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-08 05:44:01,470 INFO L93 Difference]: Finished difference Result 3528 states and 4803 transitions. [2019-09-08 05:44:01,471 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-09-08 05:44:01,471 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 285 [2019-09-08 05:44:01,472 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-08 05:44:01,488 INFO L225 Difference]: With dead ends: 3528 [2019-09-08 05:44:01,489 INFO L226 Difference]: Without dead ends: 2180 [2019-09-08 05:44:01,496 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2019-09-08 05:44:01,501 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2180 states. [2019-09-08 05:44:01,664 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2180 to 2170. [2019-09-08 05:44:01,665 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2170 states. [2019-09-08 05:44:01,678 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2170 states to 2170 states and 3021 transitions. [2019-09-08 05:44:01,678 INFO L78 Accepts]: Start accepts. Automaton has 2170 states and 3021 transitions. Word has length 285 [2019-09-08 05:44:01,679 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-08 05:44:01,679 INFO L475 AbstractCegarLoop]: Abstraction has 2170 states and 3021 transitions. [2019-09-08 05:44:01,680 INFO L476 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-09-08 05:44:01,680 INFO L276 IsEmpty]: Start isEmpty. Operand 2170 states and 3021 transitions. [2019-09-08 05:44:01,701 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 283 [2019-09-08 05:44:01,701 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 05:44:01,703 INFO L399 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-08 05:44:01,704 INFO L418 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 05:44:01,704 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 05:44:01,704 INFO L82 PathProgramCache]: Analyzing trace with hash -1479633480, now seen corresponding path program 1 times [2019-09-08 05:44:01,704 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 05:44:01,705 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 05:44:01,706 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 05:44:01,706 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 05:44:01,706 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 05:44:01,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 05:44:02,172 INFO L134 CoverageAnalysis]: Checked inductivity of 79 backedges. 19 proven. 3 refuted. 0 times theorem prover too weak. 57 trivial. 0 not checked. [2019-09-08 05:44:02,172 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-08 05:44:02,173 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) [2019-09-08 05:44:02,187 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-09-08 05:44:02,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 05:44:02,596 INFO L256 TraceCheckSpWp]: Trace formula consists of 3067 conjuncts, 6 conjunts are in the unsatisfiable core [2019-09-08 05:44:02,608 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-09-08 05:44:02,779 INFO L134 CoverageAnalysis]: Checked inductivity of 79 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2019-09-08 05:44:02,785 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-09-08 05:44:02,786 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [14] total 19 [2019-09-08 05:44:02,787 INFO L454 AbstractCegarLoop]: Interpolant automaton has 19 states [2019-09-08 05:44:02,787 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2019-09-08 05:44:02,788 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=303, Unknown=0, NotChecked=0, Total=342 [2019-09-08 05:44:02,788 INFO L87 Difference]: Start difference. First operand 2170 states and 3021 transitions. Second operand 19 states. [2019-09-08 05:44:04,559 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-08 05:44:04,559 INFO L93 Difference]: Finished difference Result 4429 states and 6209 transitions. [2019-09-08 05:44:04,559 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2019-09-08 05:44:04,560 INFO L78 Accepts]: Start accepts. Automaton has 19 states. Word has length 282 [2019-09-08 05:44:04,560 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-08 05:44:04,571 INFO L225 Difference]: With dead ends: 4429 [2019-09-08 05:44:04,572 INFO L226 Difference]: Without dead ends: 2201 [2019-09-08 05:44:04,580 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 313 GetRequests, 279 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 130 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=122, Invalid=1138, Unknown=0, NotChecked=0, Total=1260 [2019-09-08 05:44:04,583 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2201 states. [2019-09-08 05:44:04,665 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2201 to 2131. [2019-09-08 05:44:04,665 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2131 states. [2019-09-08 05:44:04,673 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2131 states to 2131 states and 2945 transitions. [2019-09-08 05:44:04,674 INFO L78 Accepts]: Start accepts. Automaton has 2131 states and 2945 transitions. Word has length 282 [2019-09-08 05:44:04,675 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-08 05:44:04,675 INFO L475 AbstractCegarLoop]: Abstraction has 2131 states and 2945 transitions. [2019-09-08 05:44:04,675 INFO L476 AbstractCegarLoop]: Interpolant automaton has 19 states. [2019-09-08 05:44:04,675 INFO L276 IsEmpty]: Start isEmpty. Operand 2131 states and 2945 transitions. [2019-09-08 05:44:04,687 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 284 [2019-09-08 05:44:04,687 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 05:44:04,687 INFO L399 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-08 05:44:04,688 INFO L418 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 05:44:04,688 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 05:44:04,688 INFO L82 PathProgramCache]: Analyzing trace with hash 809915854, now seen corresponding path program 1 times [2019-09-08 05:44:04,688 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 05:44:04,688 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 05:44:04,689 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 05:44:04,689 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 05:44:04,690 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 05:44:04,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 05:44:04,919 INFO L134 CoverageAnalysis]: Checked inductivity of 78 backedges. 16 proven. 3 refuted. 0 times theorem prover too weak. 59 trivial. 0 not checked. [2019-09-08 05:44:04,919 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-08 05:44:04,920 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) [2019-09-08 05:44:04,941 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-09-08 05:44:05,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 05:44:05,328 INFO L256 TraceCheckSpWp]: Trace formula consists of 3066 conjuncts, 8 conjunts are in the unsatisfiable core [2019-09-08 05:44:05,338 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-09-08 05:44:05,503 INFO L134 CoverageAnalysis]: Checked inductivity of 78 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 62 trivial. 0 not checked. [MP z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (4)] Exception during sending of exit command (exit): Broken pipe [2019-09-08 05:44:05,512 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-09-08 05:44:05,512 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [9] total 16 [2019-09-08 05:44:05,513 INFO L454 AbstractCegarLoop]: Interpolant automaton has 16 states [2019-09-08 05:44:05,513 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2019-09-08 05:44:05,514 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=205, Unknown=0, NotChecked=0, Total=240 [2019-09-08 05:44:05,514 INFO L87 Difference]: Start difference. First operand 2131 states and 2945 transitions. Second operand 16 states. [2019-09-08 05:44:07,694 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-08 05:44:07,695 INFO L93 Difference]: Finished difference Result 4276 states and 5922 transitions. [2019-09-08 05:44:07,695 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2019-09-08 05:44:07,695 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 283 [2019-09-08 05:44:07,695 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-08 05:44:07,707 INFO L225 Difference]: With dead ends: 4276 [2019-09-08 05:44:07,707 INFO L226 Difference]: Without dead ends: 2172 [2019-09-08 05:44:07,714 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 308 GetRequests, 281 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 60 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=123, Invalid=689, Unknown=0, NotChecked=0, Total=812 [2019-09-08 05:44:07,717 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2172 states. [2019-09-08 05:44:07,803 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2172 to 2135. [2019-09-08 05:44:07,803 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2135 states. [2019-09-08 05:44:07,809 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2135 states to 2135 states and 2936 transitions. [2019-09-08 05:44:07,810 INFO L78 Accepts]: Start accepts. Automaton has 2135 states and 2936 transitions. Word has length 283 [2019-09-08 05:44:07,810 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-08 05:44:07,811 INFO L475 AbstractCegarLoop]: Abstraction has 2135 states and 2936 transitions. [2019-09-08 05:44:07,811 INFO L476 AbstractCegarLoop]: Interpolant automaton has 16 states. [2019-09-08 05:44:07,811 INFO L276 IsEmpty]: Start isEmpty. Operand 2135 states and 2936 transitions. [2019-09-08 05:44:07,820 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 285 [2019-09-08 05:44:07,821 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 05:44:07,821 INFO L399 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-08 05:44:07,821 INFO L418 AbstractCegarLoop]: === Iteration 10 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 05:44:07,822 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 05:44:07,822 INFO L82 PathProgramCache]: Analyzing trace with hash -1937613769, now seen corresponding path program 1 times [2019-09-08 05:44:07,822 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 05:44:07,822 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 05:44:07,823 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 05:44:07,823 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 05:44:07,823 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 05:44:07,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 05:44:08,222 INFO L134 CoverageAnalysis]: Checked inductivity of 80 backedges. 16 proven. 8 refuted. 0 times theorem prover too weak. 56 trivial. 0 not checked. [2019-09-08 05:44:08,222 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-08 05:44:08,223 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-09-08 05:44:08,249 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 05:44:08,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 05:44:08,658 INFO L256 TraceCheckSpWp]: Trace formula consists of 3069 conjuncts, 8 conjunts are in the unsatisfiable core [2019-09-08 05:44:08,668 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-09-08 05:44:08,899 INFO L134 CoverageAnalysis]: Checked inductivity of 80 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 63 trivial. 0 not checked. [2019-09-08 05:44:08,905 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-09-08 05:44:08,905 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [18] total 25 [2019-09-08 05:44:08,906 INFO L454 AbstractCegarLoop]: Interpolant automaton has 25 states [2019-09-08 05:44:08,906 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2019-09-08 05:44:08,906 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=547, Unknown=0, NotChecked=0, Total=600 [2019-09-08 05:44:08,907 INFO L87 Difference]: Start difference. First operand 2135 states and 2936 transitions. Second operand 25 states. [2019-09-08 05:44:29,327 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-08 05:44:29,327 INFO L93 Difference]: Finished difference Result 4618 states and 6347 transitions. [2019-09-08 05:44:29,330 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 99 states. [2019-09-08 05:44:29,331 INFO L78 Accepts]: Start accepts. Automaton has 25 states. Word has length 284 [2019-09-08 05:44:29,331 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-08 05:44:29,344 INFO L225 Difference]: With dead ends: 4618 [2019-09-08 05:44:29,345 INFO L226 Difference]: Without dead ends: 2537 [2019-09-08 05:44:29,355 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 420 GetRequests, 302 SyntacticMatches, 0 SemanticMatches, 118 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4316 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=1208, Invalid=13072, Unknown=0, NotChecked=0, Total=14280 [2019-09-08 05:44:29,358 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2537 states. [2019-09-08 05:44:29,450 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2537 to 2135. [2019-09-08 05:44:29,450 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2135 states. [2019-09-08 05:44:29,456 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2135 states to 2135 states and 2934 transitions. [2019-09-08 05:44:29,457 INFO L78 Accepts]: Start accepts. Automaton has 2135 states and 2934 transitions. Word has length 284 [2019-09-08 05:44:29,457 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-08 05:44:29,457 INFO L475 AbstractCegarLoop]: Abstraction has 2135 states and 2934 transitions. [2019-09-08 05:44:29,457 INFO L476 AbstractCegarLoop]: Interpolant automaton has 25 states. [2019-09-08 05:44:29,457 INFO L276 IsEmpty]: Start isEmpty. Operand 2135 states and 2934 transitions. [2019-09-08 05:44:29,467 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 288 [2019-09-08 05:44:29,467 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 05:44:29,467 INFO L399 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-08 05:44:29,468 INFO L418 AbstractCegarLoop]: === Iteration 11 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 05:44:29,468 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 05:44:29,468 INFO L82 PathProgramCache]: Analyzing trace with hash -1084523647, now seen corresponding path program 1 times [2019-09-08 05:44:29,468 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 05:44:29,469 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 05:44:29,469 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 05:44:29,470 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 05:44:29,470 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 05:44:29,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 05:44:29,673 INFO L134 CoverageAnalysis]: Checked inductivity of 80 backedges. 16 proven. 2 refuted. 0 times theorem prover too weak. 62 trivial. 0 not checked. [2019-09-08 05:44:29,674 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-08 05:44:29,674 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-09-08 05:44:29,692 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 05:44:30,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 05:44:30,201 INFO L256 TraceCheckSpWp]: Trace formula consists of 3072 conjuncts, 6 conjunts are in the unsatisfiable core [2019-09-08 05:44:30,225 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-09-08 05:44:30,357 INFO L134 CoverageAnalysis]: Checked inductivity of 80 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 63 trivial. 0 not checked. [MP z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (6)] Exception during sending of exit command (exit): Broken pipe [2019-09-08 05:44:30,373 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-09-08 05:44:30,373 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [5] total 10 [2019-09-08 05:44:30,374 INFO L454 AbstractCegarLoop]: Interpolant automaton has 10 states [2019-09-08 05:44:30,374 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2019-09-08 05:44:30,375 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2019-09-08 05:44:30,375 INFO L87 Difference]: Start difference. First operand 2135 states and 2934 transitions. Second operand 10 states. [2019-09-08 05:44:33,510 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-08 05:44:33,510 INFO L93 Difference]: Finished difference Result 5923 states and 8138 transitions. [2019-09-08 05:44:33,511 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2019-09-08 05:44:33,511 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 287 [2019-09-08 05:44:33,511 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-08 05:44:33,534 INFO L225 Difference]: With dead ends: 5923 [2019-09-08 05:44:33,534 INFO L226 Difference]: Without dead ends: 3864 [2019-09-08 05:44:33,542 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 309 GetRequests, 291 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=81, Invalid=299, Unknown=0, NotChecked=0, Total=380 [2019-09-08 05:44:33,547 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3864 states. [2019-09-08 05:44:33,729 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3864 to 3639. [2019-09-08 05:44:33,729 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3639 states. [2019-09-08 05:44:33,741 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3639 states to 3639 states and 4987 transitions. [2019-09-08 05:44:33,742 INFO L78 Accepts]: Start accepts. Automaton has 3639 states and 4987 transitions. Word has length 287 [2019-09-08 05:44:33,742 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-08 05:44:33,742 INFO L475 AbstractCegarLoop]: Abstraction has 3639 states and 4987 transitions. [2019-09-08 05:44:33,742 INFO L476 AbstractCegarLoop]: Interpolant automaton has 10 states. [2019-09-08 05:44:33,743 INFO L276 IsEmpty]: Start isEmpty. Operand 3639 states and 4987 transitions. [2019-09-08 05:44:33,759 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 287 [2019-09-08 05:44:33,760 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 05:44:33,760 INFO L399 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-08 05:44:33,760 INFO L418 AbstractCegarLoop]: === Iteration 12 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 05:44:33,761 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 05:44:33,761 INFO L82 PathProgramCache]: Analyzing trace with hash -1490372169, now seen corresponding path program 1 times [2019-09-08 05:44:33,761 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 05:44:33,761 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 05:44:33,762 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 05:44:33,762 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 05:44:33,763 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 05:44:33,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 05:44:34,080 INFO L134 CoverageAnalysis]: Checked inductivity of 81 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 63 trivial. 0 not checked. [2019-09-08 05:44:34,083 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-08 05:44:34,083 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2019-09-08 05:44:34,085 INFO L454 AbstractCegarLoop]: Interpolant automaton has 13 states [2019-09-08 05:44:34,085 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2019-09-08 05:44:34,086 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=132, Unknown=0, NotChecked=0, Total=156 [2019-09-08 05:44:34,086 INFO L87 Difference]: Start difference. First operand 3639 states and 4987 transitions. Second operand 13 states. [2019-09-08 05:44:37,099 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-08 05:44:37,100 INFO L93 Difference]: Finished difference Result 8989 states and 12288 transitions. [2019-09-08 05:44:37,101 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2019-09-08 05:44:37,101 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 286 [2019-09-08 05:44:37,102 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-08 05:44:37,169 INFO L225 Difference]: With dead ends: 8989 [2019-09-08 05:44:37,170 INFO L226 Difference]: Without dead ends: 7305 [2019-09-08 05:44:37,188 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 80 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=84, Invalid=566, Unknown=0, NotChecked=0, Total=650 [2019-09-08 05:44:37,201 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7305 states. [2019-09-08 05:44:37,743 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7305 to 7120. [2019-09-08 05:44:37,743 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7120 states. [2019-09-08 05:44:37,772 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7120 states to 7120 states and 9769 transitions. [2019-09-08 05:44:37,774 INFO L78 Accepts]: Start accepts. Automaton has 7120 states and 9769 transitions. Word has length 286 [2019-09-08 05:44:37,776 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-08 05:44:37,776 INFO L475 AbstractCegarLoop]: Abstraction has 7120 states and 9769 transitions. [2019-09-08 05:44:37,776 INFO L476 AbstractCegarLoop]: Interpolant automaton has 13 states. [2019-09-08 05:44:37,777 INFO L276 IsEmpty]: Start isEmpty. Operand 7120 states and 9769 transitions. [2019-09-08 05:44:37,818 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 287 [2019-09-08 05:44:37,819 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 05:44:37,819 INFO L399 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-08 05:44:37,820 INFO L418 AbstractCegarLoop]: === Iteration 13 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 05:44:37,820 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 05:44:37,821 INFO L82 PathProgramCache]: Analyzing trace with hash 533541079, now seen corresponding path program 1 times [2019-09-08 05:44:37,821 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 05:44:37,821 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 05:44:37,823 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 05:44:37,823 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 05:44:37,823 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 05:44:37,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 05:44:38,085 INFO L134 CoverageAnalysis]: Checked inductivity of 81 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 63 trivial. 0 not checked. [2019-09-08 05:44:38,085 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-08 05:44:38,086 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-08 05:44:38,086 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-08 05:44:38,087 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-08 05:44:38,088 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-08 05:44:38,088 INFO L87 Difference]: Start difference. First operand 7120 states and 9769 transitions. Second operand 3 states. [2019-09-08 05:44:38,452 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-08 05:44:38,453 INFO L93 Difference]: Finished difference Result 15093 states and 21165 transitions. [2019-09-08 05:44:38,453 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-08 05:44:38,453 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 286 [2019-09-08 05:44:38,454 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-08 05:44:38,504 INFO L225 Difference]: With dead ends: 15093 [2019-09-08 05:44:38,505 INFO L226 Difference]: Without dead ends: 8062 [2019-09-08 05:44:38,537 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-08 05:44:38,552 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8062 states. [2019-09-08 05:44:39,155 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8062 to 8056. [2019-09-08 05:44:39,155 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8056 states. [2019-09-08 05:44:39,187 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8056 states to 8056 states and 11467 transitions. [2019-09-08 05:44:39,189 INFO L78 Accepts]: Start accepts. Automaton has 8056 states and 11467 transitions. Word has length 286 [2019-09-08 05:44:39,190 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-08 05:44:39,190 INFO L475 AbstractCegarLoop]: Abstraction has 8056 states and 11467 transitions. [2019-09-08 05:44:39,191 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-08 05:44:39,191 INFO L276 IsEmpty]: Start isEmpty. Operand 8056 states and 11467 transitions. [2019-09-08 05:44:39,241 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 288 [2019-09-08 05:44:39,241 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 05:44:39,242 INFO L399 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-08 05:44:39,242 INFO L418 AbstractCegarLoop]: === Iteration 14 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 05:44:39,243 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 05:44:39,244 INFO L82 PathProgramCache]: Analyzing trace with hash 530823302, now seen corresponding path program 1 times [2019-09-08 05:44:39,244 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 05:44:39,244 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 05:44:39,245 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 05:44:39,245 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 05:44:39,245 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 05:44:39,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 05:44:39,889 INFO L134 CoverageAnalysis]: Checked inductivity of 81 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 65 trivial. 0 not checked. [2019-09-08 05:44:39,890 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-08 05:44:39,890 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2019-09-08 05:44:39,891 INFO L454 AbstractCegarLoop]: Interpolant automaton has 11 states [2019-09-08 05:44:39,891 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2019-09-08 05:44:39,891 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2019-09-08 05:44:39,892 INFO L87 Difference]: Start difference. First operand 8056 states and 11467 transitions. Second operand 11 states. [2019-09-08 05:44:43,758 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-08 05:44:43,758 INFO L93 Difference]: Finished difference Result 11317 states and 15558 transitions. [2019-09-08 05:44:43,758 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2019-09-08 05:44:43,758 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 287 [2019-09-08 05:44:43,759 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-08 05:44:43,798 INFO L225 Difference]: With dead ends: 11317 [2019-09-08 05:44:43,798 INFO L226 Difference]: Without dead ends: 9498 [2019-09-08 05:44:43,808 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=72, Invalid=270, Unknown=0, NotChecked=0, Total=342 [2019-09-08 05:44:43,822 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9498 states. [2019-09-08 05:44:44,418 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9498 to 9434. [2019-09-08 05:44:44,419 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9434 states. [2019-09-08 05:44:44,443 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9434 states to 9434 states and 13161 transitions. [2019-09-08 05:44:44,444 INFO L78 Accepts]: Start accepts. Automaton has 9434 states and 13161 transitions. Word has length 287 [2019-09-08 05:44:44,445 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-08 05:44:44,445 INFO L475 AbstractCegarLoop]: Abstraction has 9434 states and 13161 transitions. [2019-09-08 05:44:44,445 INFO L476 AbstractCegarLoop]: Interpolant automaton has 11 states. [2019-09-08 05:44:44,445 INFO L276 IsEmpty]: Start isEmpty. Operand 9434 states and 13161 transitions. [2019-09-08 05:44:44,486 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 308 [2019-09-08 05:44:44,487 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 05:44:44,488 INFO L399 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-08 05:44:44,489 INFO L418 AbstractCegarLoop]: === Iteration 15 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 05:44:44,489 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 05:44:44,489 INFO L82 PathProgramCache]: Analyzing trace with hash 1075622710, now seen corresponding path program 1 times [2019-09-08 05:44:44,490 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 05:44:44,490 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 05:44:44,491 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 05:44:44,491 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 05:44:44,491 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 05:44:44,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 05:44:44,744 INFO L134 CoverageAnalysis]: Checked inductivity of 85 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 69 trivial. 0 not checked. [2019-09-08 05:44:44,744 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-08 05:44:44,744 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2019-09-08 05:44:44,745 INFO L454 AbstractCegarLoop]: Interpolant automaton has 11 states [2019-09-08 05:44:44,745 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2019-09-08 05:44:44,746 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110 [2019-09-08 05:44:44,746 INFO L87 Difference]: Start difference. First operand 9434 states and 13161 transitions. Second operand 11 states. [2019-09-08 05:44:45,220 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-08 05:44:45,221 INFO L93 Difference]: Finished difference Result 11647 states and 16142 transitions. [2019-09-08 05:44:45,221 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2019-09-08 05:44:45,221 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 307 [2019-09-08 05:44:45,222 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-08 05:44:45,265 INFO L225 Difference]: With dead ends: 11647 [2019-09-08 05:44:45,265 INFO L226 Difference]: Without dead ends: 9776 [2019-09-08 05:44:45,277 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=35, Invalid=175, Unknown=0, NotChecked=0, Total=210 [2019-09-08 05:44:45,290 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9776 states. [2019-09-08 05:44:45,794 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9776 to 9724. [2019-09-08 05:44:45,795 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9724 states. [2019-09-08 05:44:45,826 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9724 states to 9724 states and 13632 transitions. [2019-09-08 05:44:45,828 INFO L78 Accepts]: Start accepts. Automaton has 9724 states and 13632 transitions. Word has length 307 [2019-09-08 05:44:45,828 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-08 05:44:45,828 INFO L475 AbstractCegarLoop]: Abstraction has 9724 states and 13632 transitions. [2019-09-08 05:44:45,828 INFO L476 AbstractCegarLoop]: Interpolant automaton has 11 states. [2019-09-08 05:44:45,829 INFO L276 IsEmpty]: Start isEmpty. Operand 9724 states and 13632 transitions. [2019-09-08 05:44:45,863 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 306 [2019-09-08 05:44:45,864 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 05:44:45,864 INFO L399 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-08 05:44:45,864 INFO L418 AbstractCegarLoop]: === Iteration 16 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 05:44:45,865 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 05:44:45,865 INFO L82 PathProgramCache]: Analyzing trace with hash 375209042, now seen corresponding path program 1 times [2019-09-08 05:44:45,865 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 05:44:45,865 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 05:44:45,867 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 05:44:45,867 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 05:44:45,867 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 05:44:45,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 05:44:46,873 INFO L134 CoverageAnalysis]: Checked inductivity of 85 backedges. 32 proven. 11 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2019-09-08 05:44:46,874 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-08 05:44:46,874 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) [2019-09-08 05:44:46,903 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY Waiting until toolchain timeout for monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-09-08 05:44:47,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 05:44:47,343 INFO L256 TraceCheckSpWp]: Trace formula consists of 3172 conjuncts, 6 conjunts are in the unsatisfiable core [2019-09-08 05:44:47,353 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-09-08 05:44:47,722 INFO L134 CoverageAnalysis]: Checked inductivity of 85 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 67 trivial. 0 not checked. [MP z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (7)] Exception during sending of exit command (exit): Stream closed [2019-09-08 05:44:47,740 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-09-08 05:44:47,741 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [36] total 41 [2019-09-08 05:44:47,742 INFO L454 AbstractCegarLoop]: Interpolant automaton has 41 states [2019-09-08 05:44:47,743 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 41 interpolants. [2019-09-08 05:44:47,745 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=88, Invalid=1552, Unknown=0, NotChecked=0, Total=1640 [2019-09-08 05:44:47,745 INFO L87 Difference]: Start difference. First operand 9724 states and 13632 transitions. Second operand 41 states. [2019-09-08 05:45:58,408 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-08 05:45:58,408 INFO L93 Difference]: Finished difference Result 54059 states and 73336 transitions. [2019-09-08 05:45:58,408 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 260 states. [2019-09-08 05:45:58,408 INFO L78 Accepts]: Start accepts. Automaton has 41 states. Word has length 305 [2019-09-08 05:45:58,411 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-08 05:45:58,565 INFO L225 Difference]: With dead ends: 54059 [2019-09-08 05:45:58,565 INFO L226 Difference]: Without dead ends: 44413 [2019-09-08 05:45:58,620 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 715 GetRequests, 419 SyntacticMatches, 0 SemanticMatches, 296 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32685 ImplicationChecksByTransitivity, 10.7s TimeCoverageRelationStatistics Valid=5108, Invalid=83398, Unknown=0, NotChecked=0, Total=88506 [2019-09-08 05:45:58,671 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44413 states. [2019-09-08 05:46:02,878 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44413 to 41292. [2019-09-08 05:46:02,879 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 41292 states. [2019-09-08 05:46:02,961 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41292 states to 41292 states and 55920 transitions. [2019-09-08 05:46:02,965 INFO L78 Accepts]: Start accepts. Automaton has 41292 states and 55920 transitions. Word has length 305 [2019-09-08 05:46:02,965 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-08 05:46:02,965 INFO L475 AbstractCegarLoop]: Abstraction has 41292 states and 55920 transitions. [2019-09-08 05:46:02,965 INFO L476 AbstractCegarLoop]: Interpolant automaton has 41 states. [2019-09-08 05:46:02,966 INFO L276 IsEmpty]: Start isEmpty. Operand 41292 states and 55920 transitions. [2019-09-08 05:46:03,041 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 311 [2019-09-08 05:46:03,042 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 05:46:03,042 INFO L399 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-08 05:46:03,042 INFO L418 AbstractCegarLoop]: === Iteration 17 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 05:46:03,043 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 05:46:03,043 INFO L82 PathProgramCache]: Analyzing trace with hash 206525583, now seen corresponding path program 1 times [2019-09-08 05:46:03,043 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 05:46:03,043 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 05:46:03,044 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 05:46:03,044 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 05:46:03,044 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 05:46:03,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 05:46:03,287 INFO L134 CoverageAnalysis]: Checked inductivity of 85 backedges. 19 proven. 3 refuted. 0 times theorem prover too weak. 63 trivial. 0 not checked. [2019-09-08 05:46:03,288 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-08 05:46:03,288 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) [2019-09-08 05:46:03,321 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY Waiting until toolchain timeout for monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-09-08 05:46:03,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 05:46:03,792 INFO L256 TraceCheckSpWp]: Trace formula consists of 3177 conjuncts, 3 conjunts are in the unsatisfiable core [2019-09-08 05:46:03,810 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-09-08 05:46:03,952 INFO L134 CoverageAnalysis]: Checked inductivity of 85 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 83 trivial. 0 not checked. [2019-09-08 05:46:03,971 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-09-08 05:46:03,971 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 4] total 14 [2019-09-08 05:46:03,973 INFO L454 AbstractCegarLoop]: Interpolant automaton has 14 states [2019-09-08 05:46:03,973 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2019-09-08 05:46:03,973 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2019-09-08 05:46:03,973 INFO L87 Difference]: Start difference. First operand 41292 states and 55920 transitions. Second operand 14 states. [2019-09-08 05:46:05,807 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-08 05:46:05,808 INFO L93 Difference]: Finished difference Result 76356 states and 101379 transitions. [2019-09-08 05:46:05,808 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2019-09-08 05:46:05,808 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 310 [2019-09-08 05:46:05,809 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-08 05:46:05,948 INFO L225 Difference]: With dead ends: 76356 [2019-09-08 05:46:05,948 INFO L226 Difference]: Without dead ends: 40551 [2019-09-08 05:46:06,022 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 326 GetRequests, 310 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=42, Invalid=264, Unknown=0, NotChecked=0, Total=306 [2019-09-08 05:46:06,064 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40551 states. [2019-09-08 05:46:10,003 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40551 to 40328. [2019-09-08 05:46:10,003 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 40328 states. [2019-09-08 05:46:10,075 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40328 states to 40328 states and 54400 transitions. [2019-09-08 05:46:10,081 INFO L78 Accepts]: Start accepts. Automaton has 40328 states and 54400 transitions. Word has length 310 [2019-09-08 05:46:10,082 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-08 05:46:10,082 INFO L475 AbstractCegarLoop]: Abstraction has 40328 states and 54400 transitions. [2019-09-08 05:46:10,082 INFO L476 AbstractCegarLoop]: Interpolant automaton has 14 states. [2019-09-08 05:46:10,082 INFO L276 IsEmpty]: Start isEmpty. Operand 40328 states and 54400 transitions. [2019-09-08 05:46:10,141 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 310 [2019-09-08 05:46:10,141 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 05:46:10,142 INFO L399 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-08 05:46:10,142 INFO L418 AbstractCegarLoop]: === Iteration 18 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 05:46:10,142 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 05:46:10,143 INFO L82 PathProgramCache]: Analyzing trace with hash -810305449, now seen corresponding path program 1 times [2019-09-08 05:46:10,143 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 05:46:10,143 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 05:46:10,144 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 05:46:10,144 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 05:46:10,144 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 05:46:10,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 05:46:10,300 INFO L134 CoverageAnalysis]: Checked inductivity of 83 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 67 trivial. 0 not checked. [2019-09-08 05:46:10,300 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-08 05:46:10,301 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-08 05:46:10,301 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-08 05:46:10,301 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-08 05:46:10,302 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-08 05:46:10,302 INFO L87 Difference]: Start difference. First operand 40328 states and 54400 transitions. Second operand 3 states. [2019-09-08 05:46:11,318 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-08 05:46:11,318 INFO L93 Difference]: Finished difference Result 84063 states and 115062 transitions. [2019-09-08 05:46:11,319 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-08 05:46:11,319 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 309 [2019-09-08 05:46:11,319 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-08 05:46:11,921 INFO L225 Difference]: With dead ends: 84063 [2019-09-08 05:46:11,921 INFO L226 Difference]: Without dead ends: 43952 [2019-09-08 05:46:11,994 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-08 05:46:12,037 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43952 states. [2019-09-08 05:46:13,547 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43952 to 43940. [2019-09-08 05:46:13,547 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 43940 states. [2019-09-08 05:46:13,635 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43940 states to 43940 states and 60818 transitions. [2019-09-08 05:46:13,641 INFO L78 Accepts]: Start accepts. Automaton has 43940 states and 60818 transitions. Word has length 309 [2019-09-08 05:46:13,641 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-08 05:46:13,641 INFO L475 AbstractCegarLoop]: Abstraction has 43940 states and 60818 transitions. [2019-09-08 05:46:13,641 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-08 05:46:13,641 INFO L276 IsEmpty]: Start isEmpty. Operand 43940 states and 60818 transitions. [2019-09-08 05:46:13,712 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 309 [2019-09-08 05:46:13,713 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 05:46:13,713 INFO L399 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-08 05:46:13,713 INFO L418 AbstractCegarLoop]: === Iteration 19 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 05:46:13,713 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 05:46:13,714 INFO L82 PathProgramCache]: Analyzing trace with hash 769122074, now seen corresponding path program 1 times [2019-09-08 05:46:13,714 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 05:46:13,714 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 05:46:13,714 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 05:46:13,715 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 05:46:13,715 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 05:46:13,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 05:46:13,914 INFO L134 CoverageAnalysis]: Checked inductivity of 83 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 67 trivial. 0 not checked. [2019-09-08 05:46:13,915 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-08 05:46:13,915 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-08 05:46:13,916 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-08 05:46:14,259 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-08 05:46:14,260 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-08 05:46:14,260 INFO L87 Difference]: Start difference. First operand 43940 states and 60818 transitions. Second operand 3 states. [2019-09-08 05:46:15,490 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-08 05:46:15,490 INFO L93 Difference]: Finished difference Result 94575 states and 133698 transitions. [2019-09-08 05:46:15,490 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-08 05:46:15,490 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 308 [2019-09-08 05:46:15,491 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-08 05:46:15,687 INFO L225 Difference]: With dead ends: 94575 [2019-09-08 05:46:15,688 INFO L226 Difference]: Without dead ends: 50876 [2019-09-08 05:46:15,781 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-08 05:46:15,833 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50876 states. [2019-09-08 05:46:18,046 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50876 to 50864. [2019-09-08 05:46:18,047 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 50864 states. [2019-09-08 05:46:18,148 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50864 states to 50864 states and 72972 transitions. [2019-09-08 05:46:18,154 INFO L78 Accepts]: Start accepts. Automaton has 50864 states and 72972 transitions. Word has length 308 [2019-09-08 05:46:18,155 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-08 05:46:18,155 INFO L475 AbstractCegarLoop]: Abstraction has 50864 states and 72972 transitions. [2019-09-08 05:46:18,155 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-08 05:46:18,155 INFO L276 IsEmpty]: Start isEmpty. Operand 50864 states and 72972 transitions. [2019-09-08 05:46:18,241 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 312 [2019-09-08 05:46:18,241 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 05:46:18,242 INFO L399 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-08 05:46:18,242 INFO L418 AbstractCegarLoop]: === Iteration 20 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 05:46:18,242 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 05:46:18,243 INFO L82 PathProgramCache]: Analyzing trace with hash -1773714729, now seen corresponding path program 1 times [2019-09-08 05:46:18,243 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 05:46:18,243 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 05:46:18,243 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 05:46:18,244 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 05:46:18,244 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 05:46:18,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 05:46:18,401 INFO L134 CoverageAnalysis]: Checked inductivity of 83 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 67 trivial. 0 not checked. [2019-09-08 05:46:18,402 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-08 05:46:18,402 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-08 05:46:18,402 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-08 05:46:18,403 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-08 05:46:18,403 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-08 05:46:18,403 INFO L87 Difference]: Start difference. First operand 50864 states and 72972 transitions. Second operand 3 states. [2019-09-08 05:46:20,627 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-08 05:46:20,627 INFO L93 Difference]: Finished difference Result 114731 states and 169350 transitions. [2019-09-08 05:46:20,628 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-08 05:46:20,628 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 311 [2019-09-08 05:46:20,628 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-08 05:46:20,838 INFO L225 Difference]: With dead ends: 114731 [2019-09-08 05:46:20,838 INFO L226 Difference]: Without dead ends: 64128 [2019-09-08 05:46:20,956 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-08 05:46:21,027 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64128 states. [2019-09-08 05:46:24,487 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64128 to 64116. [2019-09-08 05:46:24,487 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 64116 states. [2019-09-08 05:46:24,625 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64116 states to 64116 states and 96302 transitions. [2019-09-08 05:46:24,632 INFO L78 Accepts]: Start accepts. Automaton has 64116 states and 96302 transitions. Word has length 311 [2019-09-08 05:46:24,632 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-08 05:46:24,632 INFO L475 AbstractCegarLoop]: Abstraction has 64116 states and 96302 transitions. [2019-09-08 05:46:24,632 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-08 05:46:24,632 INFO L276 IsEmpty]: Start isEmpty. Operand 64116 states and 96302 transitions. [2019-09-08 05:46:24,768 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 313 [2019-09-08 05:46:24,768 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 05:46:24,768 INFO L399 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-08 05:46:24,769 INFO L418 AbstractCegarLoop]: === Iteration 21 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 05:46:24,769 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 05:46:24,769 INFO L82 PathProgramCache]: Analyzing trace with hash 1480428094, now seen corresponding path program 1 times [2019-09-08 05:46:24,769 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 05:46:24,769 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 05:46:24,770 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 05:46:24,770 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 05:46:24,770 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 05:46:24,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 05:46:24,925 INFO L134 CoverageAnalysis]: Checked inductivity of 83 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 67 trivial. 0 not checked. [2019-09-08 05:46:24,926 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-08 05:46:24,926 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-08 05:46:24,926 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-08 05:46:24,927 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-08 05:46:24,927 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-08 05:46:24,927 INFO L87 Difference]: Start difference. First operand 64116 states and 96302 transitions. Second operand 3 states. [2019-09-08 05:46:29,529 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-08 05:46:29,530 INFO L93 Difference]: Finished difference Result 153319 states and 237402 transitions. [2019-09-08 05:46:29,530 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-08 05:46:29,530 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 312 [2019-09-08 05:46:29,530 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-08 05:46:29,764 INFO L225 Difference]: With dead ends: 153319 [2019-09-08 05:46:29,765 INFO L226 Difference]: Without dead ends: 89476 [2019-09-08 05:46:29,856 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-08 05:46:29,921 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 89476 states. [2019-09-08 05:46:33,766 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 89476 to 89464. [2019-09-08 05:46:33,766 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 89464 states. [2019-09-08 05:46:33,943 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 89464 states to 89464 states and 140656 transitions. [2019-09-08 05:46:33,952 INFO L78 Accepts]: Start accepts. Automaton has 89464 states and 140656 transitions. Word has length 312 [2019-09-08 05:46:33,953 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-08 05:46:33,953 INFO L475 AbstractCegarLoop]: Abstraction has 89464 states and 140656 transitions. [2019-09-08 05:46:33,953 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-08 05:46:33,953 INFO L276 IsEmpty]: Start isEmpty. Operand 89464 states and 140656 transitions. [2019-09-08 05:46:34,180 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 314 [2019-09-08 05:46:34,180 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 05:46:34,180 INFO L399 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-08 05:46:34,180 INFO L418 AbstractCegarLoop]: === Iteration 22 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 05:46:34,180 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 05:46:34,181 INFO L82 PathProgramCache]: Analyzing trace with hash -648112809, now seen corresponding path program 1 times [2019-09-08 05:46:34,181 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 05:46:34,181 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 05:46:34,181 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 05:46:34,181 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 05:46:34,181 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 05:46:34,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 05:46:34,794 INFO L134 CoverageAnalysis]: Checked inductivity of 83 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 67 trivial. 0 not checked. [2019-09-08 05:46:34,794 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-08 05:46:34,794 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-08 05:46:34,795 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-08 05:46:34,795 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-08 05:46:34,795 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-08 05:46:34,796 INFO L87 Difference]: Start difference. First operand 89464 states and 140656 transitions. Second operand 3 states. [2019-09-08 05:46:41,323 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-08 05:46:41,324 INFO L93 Difference]: Finished difference Result 230119 states and 371220 transitions. [2019-09-08 05:46:41,324 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-08 05:46:41,324 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 313 [2019-09-08 05:46:41,325 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-08 05:46:41,713 INFO L225 Difference]: With dead ends: 230119 [2019-09-08 05:46:41,714 INFO L226 Difference]: Without dead ends: 140936 [2019-09-08 05:46:41,848 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-08 05:46:41,945 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 140936 states. [2019-09-08 05:46:51,196 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 140936 to 140924. [2019-09-08 05:46:51,197 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 140924 states. [2019-09-08 05:46:51,486 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 140924 states to 140924 states and 229362 transitions. [2019-09-08 05:46:51,493 INFO L78 Accepts]: Start accepts. Automaton has 140924 states and 229362 transitions. Word has length 313 [2019-09-08 05:46:51,494 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-08 05:46:51,494 INFO L475 AbstractCegarLoop]: Abstraction has 140924 states and 229362 transitions. [2019-09-08 05:46:51,494 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-08 05:46:51,494 INFO L276 IsEmpty]: Start isEmpty. Operand 140924 states and 229362 transitions. [2019-09-08 05:46:51,938 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 315 [2019-09-08 05:46:51,939 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 05:46:51,939 INFO L399 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-08 05:46:51,939 INFO L418 AbstractCegarLoop]: === Iteration 23 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 05:46:51,939 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 05:46:51,940 INFO L82 PathProgramCache]: Analyzing trace with hash -404925506, now seen corresponding path program 1 times [2019-09-08 05:46:51,940 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 05:46:51,940 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 05:46:51,941 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 05:46:51,941 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 05:46:51,941 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 05:46:51,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 05:46:52,117 INFO L134 CoverageAnalysis]: Checked inductivity of 83 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 67 trivial. 0 not checked. [2019-09-08 05:46:52,117 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-08 05:46:52,117 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-08 05:46:52,117 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-08 05:46:52,118 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-08 05:46:52,118 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-08 05:46:52,118 INFO L87 Difference]: Start difference. First operand 140924 states and 229362 transitions. Second operand 3 states. [2019-09-08 05:47:03,774 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-08 05:47:03,775 INFO L93 Difference]: Finished difference Result 376807 states and 621960 transitions. [2019-09-08 05:47:03,775 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-08 05:47:03,775 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 314 [2019-09-08 05:47:03,775 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-08 05:47:04,423 INFO L225 Difference]: With dead ends: 376807 [2019-09-08 05:47:04,424 INFO L226 Difference]: Without dead ends: 236180 [2019-09-08 05:47:04,611 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-08 05:47:04,760 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 236180 states. [2019-09-08 05:47:26,483 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 236180 to 236168. [2019-09-08 05:47:26,483 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 236168 states. [2019-09-08 05:47:27,007 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 236168 states to 236168 states and 389884 transitions. [2019-09-08 05:47:27,019 INFO L78 Accepts]: Start accepts. Automaton has 236168 states and 389884 transitions. Word has length 314 [2019-09-08 05:47:27,020 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-08 05:47:27,020 INFO L475 AbstractCegarLoop]: Abstraction has 236168 states and 389884 transitions. [2019-09-08 05:47:27,020 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-08 05:47:27,020 INFO L276 IsEmpty]: Start isEmpty. Operand 236168 states and 389884 transitions. [2019-09-08 05:47:28,106 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 316 [2019-09-08 05:47:28,106 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 05:47:28,106 INFO L399 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-08 05:47:28,106 INFO L418 AbstractCegarLoop]: === Iteration 24 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 05:47:28,106 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 05:47:28,107 INFO L82 PathProgramCache]: Analyzing trace with hash -155141223, now seen corresponding path program 1 times [2019-09-08 05:47:28,107 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 05:47:28,107 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 05:47:28,107 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 05:47:28,107 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 05:47:28,108 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 05:47:28,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 05:47:28,255 INFO L134 CoverageAnalysis]: Checked inductivity of 83 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 67 trivial. 0 not checked. [2019-09-08 05:47:28,255 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-08 05:47:28,255 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-08 05:47:28,256 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-08 05:47:28,256 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-08 05:47:28,256 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-08 05:47:28,257 INFO L87 Difference]: Start difference. First operand 236168 states and 389884 transitions. Second operand 3 states. [2019-09-08 05:47:52,986 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-08 05:47:52,987 INFO L93 Difference]: Finished difference Result 653283 states and 1091196 transitions. [2019-09-08 05:47:52,987 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-08 05:47:52,987 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 315 [2019-09-08 05:47:52,987 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-08 05:47:55,078 INFO L225 Difference]: With dead ends: 653283 [2019-09-08 05:47:55,079 INFO L226 Difference]: Without dead ends: 417432 [2019-09-08 05:47:55,472 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-08 05:47:55,767 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 417432 states. [2019-09-08 05:48:35,035 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 417432 to 417420. [2019-09-08 05:48:35,035 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 417420 states. [2019-09-08 05:48:36,016 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 417420 states to 417420 states and 695550 transitions. [2019-09-08 05:48:36,042 INFO L78 Accepts]: Start accepts. Automaton has 417420 states and 695550 transitions. Word has length 315 [2019-09-08 05:48:36,043 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-08 05:48:36,043 INFO L475 AbstractCegarLoop]: Abstraction has 417420 states and 695550 transitions. [2019-09-08 05:48:36,043 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-08 05:48:36,043 INFO L276 IsEmpty]: Start isEmpty. Operand 417420 states and 695550 transitions. [2019-09-08 05:48:38,558 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 315 [2019-09-08 05:48:38,559 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 05:48:38,559 INFO L399 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-08 05:48:38,559 INFO L418 AbstractCegarLoop]: === Iteration 25 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 05:48:38,559 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 05:48:38,559 INFO L82 PathProgramCache]: Analyzing trace with hash -1109466150, now seen corresponding path program 1 times [2019-09-08 05:48:38,560 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 05:48:38,560 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 05:48:38,560 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 05:48:38,560 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 05:48:38,560 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 05:48:38,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 05:48:38,719 INFO L134 CoverageAnalysis]: Checked inductivity of 83 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 67 trivial. 0 not checked. [2019-09-08 05:48:38,719 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-08 05:48:38,719 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-08 05:48:38,720 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-08 05:48:38,720 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-08 05:48:38,720 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-08 05:48:38,721 INFO L87 Difference]: Start difference. First operand 417420 states and 695550 transitions. Second operand 3 states. [2019-09-08 05:49:30,691 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-08 05:49:30,692 INFO L93 Difference]: Finished difference Result 795881 states and 1314450 transitions. [2019-09-08 05:49:30,692 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-08 05:49:30,692 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 314 [2019-09-08 05:49:30,692 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-08 05:49:34,028 INFO L225 Difference]: With dead ends: 795881 [2019-09-08 05:49:34,029 INFO L226 Difference]: Without dead ends: 761394 [2019-09-08 05:49:34,268 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-08 05:49:34,737 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 761394 states. [2019-09-08 05:50:50,791 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 761394 to 761382. [2019-09-08 05:50:50,791 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 761382 states. [2019-09-08 05:50:53,810 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 761382 states to 761382 states and 1257580 transitions. [2019-09-08 05:50:53,816 INFO L78 Accepts]: Start accepts. Automaton has 761382 states and 1257580 transitions. Word has length 314 [2019-09-08 05:50:53,816 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-08 05:50:53,816 INFO L475 AbstractCegarLoop]: Abstraction has 761382 states and 1257580 transitions. [2019-09-08 05:50:53,816 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-08 05:50:53,816 INFO L276 IsEmpty]: Start isEmpty. Operand 761382 states and 1257580 transitions. [2019-09-08 05:51:11,253 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 316 [2019-09-08 05:51:11,253 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 05:51:11,254 INFO L399 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-08 05:51:11,254 INFO L418 AbstractCegarLoop]: === Iteration 26 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 05:51:11,254 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 05:51:11,254 INFO L82 PathProgramCache]: Analyzing trace with hash -531128587, now seen corresponding path program 1 times [2019-09-08 05:51:11,254 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 05:51:11,254 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 05:51:11,255 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 05:51:11,255 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 05:51:11,255 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 05:51:11,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 05:51:12,666 INFO L134 CoverageAnalysis]: Checked inductivity of 83 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 67 trivial. 0 not checked. [2019-09-08 05:51:12,666 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-08 05:51:12,667 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2019-09-08 05:51:12,667 INFO L454 AbstractCegarLoop]: Interpolant automaton has 11 states [2019-09-08 05:51:12,667 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2019-09-08 05:51:12,667 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110 [2019-09-08 05:51:12,668 INFO L87 Difference]: Start difference. First operand 761382 states and 1257580 transitions. Second operand 11 states. [2019-09-08 05:51:54,441 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-08 05:51:54,442 INFO L93 Difference]: Finished difference Result 771621 states and 1270666 transitions. [2019-09-08 05:51:54,442 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2019-09-08 05:51:54,442 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 315 [2019-09-08 05:51:54,442 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-08 05:51:57,605 INFO L225 Difference]: With dead ends: 771621 [2019-09-08 05:51:57,606 INFO L226 Difference]: Without dead ends: 761534 [2019-09-08 05:51:57,817 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=35, Invalid=175, Unknown=0, NotChecked=0, Total=210 [2019-09-08 05:51:58,299 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 761534 states. [2019-09-08 05:53:15,969 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 761534 to 761382. [2019-09-08 05:53:15,969 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 761382 states. [2019-09-08 05:53:18,507 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 761382 states to 761382 states and 1257452 transitions. [2019-09-08 05:53:18,508 INFO L78 Accepts]: Start accepts. Automaton has 761382 states and 1257452 transitions. Word has length 315 [2019-09-08 05:53:18,509 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-08 05:53:18,509 INFO L475 AbstractCegarLoop]: Abstraction has 761382 states and 1257452 transitions. [2019-09-08 05:53:18,509 INFO L476 AbstractCegarLoop]: Interpolant automaton has 11 states. [2019-09-08 05:53:18,509 INFO L276 IsEmpty]: Start isEmpty. Operand 761382 states and 1257452 transitions.