java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf --abstractinterpretationv2.abstract.domain IntervalDomain --traceabstraction.trace.refinement.strategy TAIPAN --traceabstraction.abstract.interpretation.mode USE_PREDICATES -i ../../../trunk/examples/svcomp/product-lines/email_spec0_product16.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-f4eb214f-m [2019-10-13 21:12:43,421 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-13 21:12:43,423 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-13 21:12:43,442 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-13 21:12:43,442 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-13 21:12:43,444 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-13 21:12:43,446 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-13 21:12:43,459 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-13 21:12:43,461 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-13 21:12:43,462 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-13 21:12:43,463 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-13 21:12:43,465 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-13 21:12:43,465 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-13 21:12:43,470 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-13 21:12:43,473 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-13 21:12:43,474 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-13 21:12:43,476 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-13 21:12:43,478 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-13 21:12:43,480 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-13 21:12:43,486 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-13 21:12:43,490 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-13 21:12:43,493 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-13 21:12:43,494 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-13 21:12:43,498 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-13 21:12:43,500 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-13 21:12:43,500 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-13 21:12:43,500 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-13 21:12:43,503 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-13 21:12:43,505 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-13 21:12:43,507 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-13 21:12:43,507 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-13 21:12:43,508 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-13 21:12:43,509 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-13 21:12:43,509 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-13 21:12:43,511 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-13 21:12:43,511 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-13 21:12:43,512 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-13 21:12:43,512 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-13 21:12:43,512 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-13 21:12:43,513 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-13 21:12:43,515 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-13 21:12:43,515 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2019-10-13 21:12:43,530 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-13 21:12:43,530 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-13 21:12:43,531 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-13 21:12:43,532 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-13 21:12:43,532 INFO L138 SettingsManager]: * Use SBE=true [2019-10-13 21:12:43,532 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-13 21:12:43,532 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-13 21:12:43,533 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-13 21:12:43,533 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-13 21:12:43,533 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-13 21:12:43,533 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-13 21:12:43,533 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-13 21:12:43,534 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-13 21:12:43,534 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-13 21:12:43,534 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-13 21:12:43,534 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-13 21:12:43,534 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-13 21:12:43,535 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-13 21:12:43,535 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-13 21:12:43,535 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-13 21:12:43,535 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-13 21:12:43,536 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-13 21:12:43,536 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-13 21:12:43,536 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-13 21:12:43,536 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-13 21:12:43,536 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-13 21:12:43,537 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-13 21:12:43,537 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-13 21:12:43,537 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2: Abstract domain -> IntervalDomain Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> TAIPAN Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Abstract interpretation Mode -> USE_PREDICATES [2019-10-13 21:12:43,867 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-13 21:12:43,893 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-13 21:12:43,896 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-13 21:12:43,899 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-13 21:12:43,899 INFO L275 PluginConnector]: CDTParser initialized [2019-10-13 21:12:43,900 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/email_spec0_product16.cil.c [2019-10-13 21:12:43,958 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5941c11ad/1f0681102e1a401e8b4841fe6b54d9c2/FLAGc39254671 [2019-10-13 21:12:44,639 INFO L306 CDTParser]: Found 1 translation units. [2019-10-13 21:12:44,642 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/email_spec0_product16.cil.c [2019-10-13 21:12:44,677 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5941c11ad/1f0681102e1a401e8b4841fe6b54d9c2/FLAGc39254671 [2019-10-13 21:12:44,852 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5941c11ad/1f0681102e1a401e8b4841fe6b54d9c2 [2019-10-13 21:12:44,862 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-13 21:12:44,864 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-13 21:12:44,865 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-13 21:12:44,866 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-13 21:12:44,869 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-13 21:12:44,870 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 09:12:44" (1/1) ... [2019-10-13 21:12:44,873 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7ae3ae2b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:12:44, skipping insertion in model container [2019-10-13 21:12:44,873 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 09:12:44" (1/1) ... [2019-10-13 21:12:44,880 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-13 21:12:44,957 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-13 21:12:45,699 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-13 21:12:45,724 INFO L188 MainTranslator]: Completed pre-run [2019-10-13 21:12:45,872 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-13 21:12:45,968 INFO L192 MainTranslator]: Completed translation [2019-10-13 21:12:45,968 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:12:45 WrapperNode [2019-10-13 21:12:45,969 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-13 21:12:45,969 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-13 21:12:45,970 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-13 21:12:45,970 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-13 21:12:45,984 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:12:45" (1/1) ... [2019-10-13 21:12:45,984 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:12:45" (1/1) ... [2019-10-13 21:12:46,018 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:12:45" (1/1) ... [2019-10-13 21:12:46,018 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:12:45" (1/1) ... [2019-10-13 21:12:46,075 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:12:45" (1/1) ... [2019-10-13 21:12:46,103 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:12:45" (1/1) ... [2019-10-13 21:12:46,123 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:12:45" (1/1) ... [2019-10-13 21:12:46,140 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-13 21:12:46,141 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-13 21:12:46,141 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-13 21:12:46,142 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-13 21:12:46,143 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:12:45" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-13 21:12:46,219 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-13 21:12:46,220 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-13 21:12:46,220 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-10-13 21:12:46,220 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-10-13 21:12:46,221 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-10-13 21:12:46,221 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-10-13 21:12:46,221 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-10-13 21:12:46,221 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob__wrappee__Base [2019-10-13 21:12:46,222 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob [2019-10-13 21:12:46,222 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh__wrappee__Base [2019-10-13 21:12:46,222 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh [2019-10-13 21:12:46,222 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck__wrappee__Base [2019-10-13 21:12:46,223 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck [2019-10-13 21:12:46,223 INFO L138 BoogieDeclarations]: Found implementation of procedure bobToRjh [2019-10-13 21:12:46,223 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhToBob [2019-10-13 21:12:46,223 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-10-13 21:12:46,227 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-13 21:12:46,227 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAdd [2019-10-13 21:12:46,228 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAdd [2019-10-13 21:12:46,228 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAddChuck [2019-10-13 21:12:46,228 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAddChuck [2019-10-13 21:12:46,229 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2019-10-13 21:12:46,229 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAddRjh [2019-10-13 21:12:46,229 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhDeletePrivateKey [2019-10-13 21:12:46,229 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyChange [2019-10-13 21:12:46,229 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyChange [2019-10-13 21:12:46,230 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhEnableForwarding [2019-10-13 21:12:46,230 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-10-13 21:12:46,230 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__Keys [2019-10-13 21:12:46,230 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail [2019-10-13 21:12:46,230 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable__wrappee__Keys [2019-10-13 21:12:46,231 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2019-10-13 21:12:46,231 INFO L138 BoogieDeclarations]: Found implementation of procedure cloneEmail [2019-10-13 21:12:46,231 INFO L138 BoogieDeclarations]: Found implementation of procedure createEmail [2019-10-13 21:12:46,231 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-10-13 21:12:46,231 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-10-13 21:12:46,232 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-10-13 21:12:46,232 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-10-13 21:12:46,232 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-10-13 21:12:46,232 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-10-13 21:12:46,233 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-10-13 21:12:46,233 INFO L138 BoogieDeclarations]: Found implementation of procedure initClient [2019-10-13 21:12:46,233 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientName [2019-10-13 21:12:46,233 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientName [2019-10-13 21:12:46,233 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientOutbuffer [2019-10-13 21:12:46,234 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientOutbuffer [2019-10-13 21:12:46,234 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookSize [2019-10-13 21:12:46,234 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookSize [2019-10-13 21:12:46,234 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientAddressBookEntry [2019-10-13 21:12:46,234 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAlias [2019-10-13 21:12:46,234 INFO L138 BoogieDeclarations]: Found implementation of procedure findClientAddressBookAlias [2019-10-13 21:12:46,235 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAlias [2019-10-13 21:12:46,235 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAddress [2019-10-13 21:12:46,235 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAddress [2019-10-13 21:12:46,235 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAutoResponse [2019-10-13 21:12:46,235 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAutoResponse [2019-10-13 21:12:46,236 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientPrivateKey [2019-10-13 21:12:46,236 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2019-10-13 21:12:46,236 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringSize [2019-10-13 21:12:46,236 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringSize [2019-10-13 21:12:46,236 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2019-10-13 21:12:46,236 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringUser [2019-10-13 21:12:46,237 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2019-10-13 21:12:46,237 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringPublicKey [2019-10-13 21:12:46,238 INFO L138 BoogieDeclarations]: Found implementation of procedure findPublicKey [2019-10-13 21:12:46,238 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2019-10-13 21:12:46,238 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientForwardReceiver [2019-10-13 21:12:46,238 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientForwardReceiver [2019-10-13 21:12:46,238 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientId [2019-10-13 21:12:46,239 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2019-10-13 21:12:46,239 INFO L138 BoogieDeclarations]: Found implementation of procedure initEmail [2019-10-13 21:12:46,239 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailId [2019-10-13 21:12:46,239 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailId [2019-10-13 21:12:46,240 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2019-10-13 21:12:46,240 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2019-10-13 21:12:46,240 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2019-10-13 21:12:46,241 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2019-10-13 21:12:46,241 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSubject [2019-10-13 21:12:46,241 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSubject [2019-10-13 21:12:46,242 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailBody [2019-10-13 21:12:46,242 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailBody [2019-10-13 21:12:46,242 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2019-10-13 21:12:46,242 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2019-10-13 21:12:46,242 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2019-10-13 21:12:46,242 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2019-10-13 21:12:46,244 INFO L138 BoogieDeclarations]: Found implementation of procedure isSigned [2019-10-13 21:12:46,244 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSigned [2019-10-13 21:12:46,245 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSignKey [2019-10-13 21:12:46,245 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSignKey [2019-10-13 21:12:46,245 INFO L138 BoogieDeclarations]: Found implementation of procedure isVerified [2019-10-13 21:12:46,245 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSignatureVerified [2019-10-13 21:12:46,245 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__DecryptForward_spec__1 [2019-10-13 21:12:46,246 INFO L138 BoogieDeclarations]: Found implementation of procedure prompt [2019-10-13 21:12:46,246 INFO L138 BoogieDeclarations]: Found implementation of procedure mail [2019-10-13 21:12:46,246 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__Keys [2019-10-13 21:12:46,246 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2019-10-13 21:12:46,246 INFO L138 BoogieDeclarations]: Found implementation of procedure deliver [2019-10-13 21:12:46,247 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Encrypt [2019-10-13 21:12:46,247 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Forward [2019-10-13 21:12:46,247 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming [2019-10-13 21:12:46,247 INFO L138 BoogieDeclarations]: Found implementation of procedure createClient [2019-10-13 21:12:46,247 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2019-10-13 21:12:46,247 INFO L138 BoogieDeclarations]: Found implementation of procedure queue [2019-10-13 21:12:46,248 INFO L138 BoogieDeclarations]: Found implementation of procedure is_queue_empty [2019-10-13 21:12:46,248 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_client [2019-10-13 21:12:46,248 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_email [2019-10-13 21:12:46,248 INFO L138 BoogieDeclarations]: Found implementation of procedure isKeyPairValid [2019-10-13 21:12:46,248 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2019-10-13 21:12:46,249 INFO L138 BoogieDeclarations]: Found implementation of procedure forward [2019-10-13 21:12:46,249 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-13 21:12:46,249 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-13 21:12:46,249 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-10-13 21:12:46,249 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-10-13 21:12:46,250 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-10-13 21:12:46,250 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-10-13 21:12:46,250 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-10-13 21:12:46,250 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2019-10-13 21:12:46,251 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2019-10-13 21:12:46,251 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2019-10-13 21:12:46,251 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringUser [2019-10-13 21:12:46,252 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2019-10-13 21:12:46,252 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringPublicKey [2019-10-13 21:12:46,252 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2019-10-13 21:12:46,252 INFO L130 BoogieDeclarations]: Found specification of procedure setClientForwardReceiver [2019-10-13 21:12:46,253 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2019-10-13 21:12:46,254 INFO L130 BoogieDeclarations]: Found specification of procedure is_queue_empty [2019-10-13 21:12:46,254 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_client [2019-10-13 21:12:46,254 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_email [2019-10-13 21:12:46,254 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2019-10-13 21:12:46,254 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2019-10-13 21:12:46,254 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2019-10-13 21:12:46,255 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob [2019-10-13 21:12:46,255 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh [2019-10-13 21:12:46,255 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck [2019-10-13 21:12:46,255 INFO L130 BoogieDeclarations]: Found specification of procedure bobToRjh [2019-10-13 21:12:46,256 INFO L130 BoogieDeclarations]: Found specification of procedure rjhToBob [2019-10-13 21:12:46,256 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-10-13 21:12:46,261 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-10-13 21:12:46,261 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-13 21:12:46,262 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAdd [2019-10-13 21:12:46,262 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAddChuck [2019-10-13 21:12:46,262 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAdd [2019-10-13 21:12:46,263 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAddChuck [2019-10-13 21:12:46,263 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2019-10-13 21:12:46,271 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyChange [2019-10-13 21:12:46,271 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyChange [2019-10-13 21:12:46,271 INFO L130 BoogieDeclarations]: Found specification of procedure rjhDeletePrivateKey [2019-10-13 21:12:46,271 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAddRjh [2019-10-13 21:12:46,271 INFO L130 BoogieDeclarations]: Found specification of procedure rjhEnableForwarding [2019-10-13 21:12:46,271 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob__wrappee__Base [2019-10-13 21:12:46,272 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh__wrappee__Base [2019-10-13 21:12:46,272 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck__wrappee__Base [2019-10-13 21:12:46,272 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-13 21:12:46,272 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-10-13 21:12:46,272 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailId [2019-10-13 21:12:46,272 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2019-10-13 21:12:46,272 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2019-10-13 21:12:46,273 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2019-10-13 21:12:46,273 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2019-10-13 21:12:46,273 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2019-10-13 21:12:46,273 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2019-10-13 21:12:46,273 INFO L130 BoogieDeclarations]: Found specification of procedure printMail [2019-10-13 21:12:46,274 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2019-10-13 21:12:46,274 INFO L130 BoogieDeclarations]: Found specification of procedure createEmail [2019-10-13 21:12:46,274 INFO L130 BoogieDeclarations]: Found specification of procedure cloneEmail [2019-10-13 21:12:46,275 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__Keys [2019-10-13 21:12:46,275 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable__wrappee__Keys [2019-10-13 21:12:46,275 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-10-13 21:12:46,275 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-10-13 21:12:46,275 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-13 21:12:46,275 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-10-13 21:12:46,275 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-13 21:12:46,275 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-13 21:12:46,276 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-13 21:12:46,276 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-13 21:12:46,276 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-10-13 21:12:46,276 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-13 21:12:46,276 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-10-13 21:12:46,276 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-10-13 21:12:46,276 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-13 21:12:46,276 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-10-13 21:12:46,277 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-10-13 21:12:46,277 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-10-13 21:12:46,277 INFO L130 BoogieDeclarations]: Found specification of procedure initClient [2019-10-13 21:12:46,277 INFO L130 BoogieDeclarations]: Found specification of procedure getClientName [2019-10-13 21:12:46,277 INFO L130 BoogieDeclarations]: Found specification of procedure setClientName [2019-10-13 21:12:46,277 INFO L130 BoogieDeclarations]: Found specification of procedure getClientOutbuffer [2019-10-13 21:12:46,277 INFO L130 BoogieDeclarations]: Found specification of procedure setClientOutbuffer [2019-10-13 21:12:46,278 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookSize [2019-10-13 21:12:46,278 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookSize [2019-10-13 21:12:46,278 INFO L130 BoogieDeclarations]: Found specification of procedure createClientAddressBookEntry [2019-10-13 21:12:46,278 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAlias [2019-10-13 21:12:46,278 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAlias [2019-10-13 21:12:46,278 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAddress [2019-10-13 21:12:46,278 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAddress [2019-10-13 21:12:46,278 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAutoResponse [2019-10-13 21:12:46,279 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAutoResponse [2019-10-13 21:12:46,279 INFO L130 BoogieDeclarations]: Found specification of procedure getClientPrivateKey [2019-10-13 21:12:46,279 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringSize [2019-10-13 21:12:46,279 INFO L130 BoogieDeclarations]: Found specification of procedure getClientForwardReceiver [2019-10-13 21:12:46,279 INFO L130 BoogieDeclarations]: Found specification of procedure getClientId [2019-10-13 21:12:46,279 INFO L130 BoogieDeclarations]: Found specification of procedure findPublicKey [2019-10-13 21:12:46,279 INFO L130 BoogieDeclarations]: Found specification of procedure findClientAddressBookAlias [2019-10-13 21:12:46,280 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringSize [2019-10-13 21:12:46,280 INFO L130 BoogieDeclarations]: Found specification of procedure initEmail [2019-10-13 21:12:46,280 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailId [2019-10-13 21:12:46,280 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSubject [2019-10-13 21:12:46,280 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSubject [2019-10-13 21:12:46,280 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailBody [2019-10-13 21:12:46,280 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailBody [2019-10-13 21:12:46,280 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2019-10-13 21:12:46,281 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2019-10-13 21:12:46,281 INFO L130 BoogieDeclarations]: Found specification of procedure isSigned [2019-10-13 21:12:46,281 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSigned [2019-10-13 21:12:46,281 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSignKey [2019-10-13 21:12:46,281 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSignKey [2019-10-13 21:12:46,281 INFO L130 BoogieDeclarations]: Found specification of procedure isVerified [2019-10-13 21:12:46,281 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSignatureVerified [2019-10-13 21:12:46,282 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__DecryptForward_spec__1 [2019-10-13 21:12:46,282 INFO L130 BoogieDeclarations]: Found specification of procedure prompt [2019-10-13 21:12:46,282 INFO L130 BoogieDeclarations]: Found specification of procedure queue [2019-10-13 21:12:46,282 INFO L130 BoogieDeclarations]: Found specification of procedure mail [2019-10-13 21:12:46,282 INFO L130 BoogieDeclarations]: Found specification of procedure deliver [2019-10-13 21:12:46,282 INFO L130 BoogieDeclarations]: Found specification of procedure incoming [2019-10-13 21:12:46,283 INFO L130 BoogieDeclarations]: Found specification of procedure createClient [2019-10-13 21:12:46,283 INFO L130 BoogieDeclarations]: Found specification of procedure isKeyPairValid [2019-10-13 21:12:46,283 INFO L130 BoogieDeclarations]: Found specification of procedure forward [2019-10-13 21:12:46,283 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__Keys [2019-10-13 21:12:46,283 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Encrypt [2019-10-13 21:12:46,283 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Forward [2019-10-13 21:12:46,283 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-13 21:12:46,284 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-13 21:12:46,284 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-13 21:12:48,341 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-13 21:12:48,341 INFO L284 CfgBuilder]: Removed 4 assume(true) statements. [2019-10-13 21:12:48,343 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 09:12:48 BoogieIcfgContainer [2019-10-13 21:12:48,343 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-13 21:12:48,344 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-13 21:12:48,344 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-13 21:12:48,348 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-13 21:12:48,348 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 09:12:44" (1/3) ... [2019-10-13 21:12:48,349 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@45930d9b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 09:12:48, skipping insertion in model container [2019-10-13 21:12:48,349 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:12:45" (2/3) ... [2019-10-13 21:12:48,349 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@45930d9b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 09:12:48, skipping insertion in model container [2019-10-13 21:12:48,350 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 09:12:48" (3/3) ... [2019-10-13 21:12:48,351 INFO L109 eAbstractionObserver]: Analyzing ICFG email_spec0_product16.cil.c [2019-10-13 21:12:48,361 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-13 21:12:48,371 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-13 21:12:48,385 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-13 21:12:48,417 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-13 21:12:48,417 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-13 21:12:48,417 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-13 21:12:48,417 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-13 21:12:48,417 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-13 21:12:48,418 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-13 21:12:48,418 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-13 21:12:48,418 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-13 21:12:48,452 INFO L276 IsEmpty]: Start isEmpty. Operand 473 states. [2019-10-13 21:12:48,474 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 190 [2019-10-13 21:12:48,474 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:12:48,475 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 21:12:48,478 INFO L410 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:12:48,483 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:12:48,484 INFO L82 PathProgramCache]: Analyzing trace with hash -302652635, now seen corresponding path program 1 times [2019-10-13 21:12:48,494 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:12:48,495 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1013823632] [2019-10-13 21:12:48,495 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:12:48,496 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:12:48,496 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:12:48,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:12:49,203 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2019-10-13 21:12:49,204 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1013823632] [2019-10-13 21:12:49,205 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 21:12:49,205 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-10-13 21:12:49,205 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1298964783] [2019-10-13 21:12:49,213 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-13 21:12:49,215 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:12:49,231 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-13 21:12:49,232 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-13 21:12:49,234 INFO L87 Difference]: Start difference. First operand 473 states. Second operand 2 states. [2019-10-13 21:12:49,330 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:12:49,330 INFO L93 Difference]: Finished difference Result 688 states and 906 transitions. [2019-10-13 21:12:49,331 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-13 21:12:49,332 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 189 [2019-10-13 21:12:49,333 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:12:49,355 INFO L225 Difference]: With dead ends: 688 [2019-10-13 21:12:49,355 INFO L226 Difference]: Without dead ends: 450 [2019-10-13 21:12:49,362 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-13 21:12:49,382 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 450 states. [2019-10-13 21:12:49,456 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 450 to 450. [2019-10-13 21:12:49,458 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 450 states. [2019-10-13 21:12:49,470 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 450 states to 450 states and 596 transitions. [2019-10-13 21:12:49,473 INFO L78 Accepts]: Start accepts. Automaton has 450 states and 596 transitions. Word has length 189 [2019-10-13 21:12:49,479 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:12:49,479 INFO L462 AbstractCegarLoop]: Abstraction has 450 states and 596 transitions. [2019-10-13 21:12:49,480 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-13 21:12:49,480 INFO L276 IsEmpty]: Start isEmpty. Operand 450 states and 596 transitions. [2019-10-13 21:12:49,491 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 191 [2019-10-13 21:12:49,491 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:12:49,492 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 21:12:49,496 INFO L410 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:12:49,496 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:12:49,496 INFO L82 PathProgramCache]: Analyzing trace with hash -182666753, now seen corresponding path program 1 times [2019-10-13 21:12:49,497 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:12:49,497 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1304014587] [2019-10-13 21:12:49,498 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:12:49,498 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:12:49,498 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:12:49,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:12:49,813 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2019-10-13 21:12:49,814 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1304014587] [2019-10-13 21:12:49,814 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 21:12:49,815 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-13 21:12:49,815 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1889818357] [2019-10-13 21:12:49,825 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-13 21:12:49,826 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:12:49,826 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-13 21:12:49,826 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 21:12:49,827 INFO L87 Difference]: Start difference. First operand 450 states and 596 transitions. Second operand 3 states. [2019-10-13 21:12:49,923 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:12:49,923 INFO L93 Difference]: Finished difference Result 671 states and 872 transitions. [2019-10-13 21:12:49,925 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-13 21:12:49,925 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 190 [2019-10-13 21:12:49,926 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:12:49,936 INFO L225 Difference]: With dead ends: 671 [2019-10-13 21:12:49,936 INFO L226 Difference]: Without dead ends: 453 [2019-10-13 21:12:49,943 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 21:12:49,944 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 453 states. [2019-10-13 21:12:50,021 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 453 to 452. [2019-10-13 21:12:50,021 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 452 states. [2019-10-13 21:12:50,025 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 452 states to 452 states and 598 transitions. [2019-10-13 21:12:50,025 INFO L78 Accepts]: Start accepts. Automaton has 452 states and 598 transitions. Word has length 190 [2019-10-13 21:12:50,026 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:12:50,026 INFO L462 AbstractCegarLoop]: Abstraction has 452 states and 598 transitions. [2019-10-13 21:12:50,026 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-13 21:12:50,026 INFO L276 IsEmpty]: Start isEmpty. Operand 452 states and 598 transitions. [2019-10-13 21:12:50,029 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 197 [2019-10-13 21:12:50,029 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:12:50,030 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 21:12:50,030 INFO L410 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:12:50,030 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:12:50,031 INFO L82 PathProgramCache]: Analyzing trace with hash -2135910709, now seen corresponding path program 1 times [2019-10-13 21:12:50,031 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:12:50,031 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [689588546] [2019-10-13 21:12:50,031 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:12:50,031 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:12:50,032 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:12:50,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:12:50,187 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2019-10-13 21:12:50,188 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [689588546] [2019-10-13 21:12:50,188 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 21:12:50,188 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-13 21:12:50,188 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1859846328] [2019-10-13 21:12:50,192 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-13 21:12:50,194 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:12:50,194 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-13 21:12:50,195 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 21:12:50,195 INFO L87 Difference]: Start difference. First operand 452 states and 598 transitions. Second operand 3 states. [2019-10-13 21:12:50,245 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:12:50,246 INFO L93 Difference]: Finished difference Result 880 states and 1194 transitions. [2019-10-13 21:12:50,247 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-13 21:12:50,247 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 196 [2019-10-13 21:12:50,250 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:12:50,257 INFO L225 Difference]: With dead ends: 880 [2019-10-13 21:12:50,257 INFO L226 Difference]: Without dead ends: 493 [2019-10-13 21:12:50,259 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 21:12:50,260 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 493 states. [2019-10-13 21:12:50,297 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 493 to 492. [2019-10-13 21:12:50,297 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 492 states. [2019-10-13 21:12:50,302 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 492 states to 492 states and 667 transitions. [2019-10-13 21:12:50,303 INFO L78 Accepts]: Start accepts. Automaton has 492 states and 667 transitions. Word has length 196 [2019-10-13 21:12:50,304 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:12:50,304 INFO L462 AbstractCegarLoop]: Abstraction has 492 states and 667 transitions. [2019-10-13 21:12:50,304 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-13 21:12:50,305 INFO L276 IsEmpty]: Start isEmpty. Operand 492 states and 667 transitions. [2019-10-13 21:12:50,315 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 198 [2019-10-13 21:12:50,315 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:12:50,315 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 21:12:50,316 INFO L410 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:12:50,316 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:12:50,316 INFO L82 PathProgramCache]: Analyzing trace with hash -318353265, now seen corresponding path program 1 times [2019-10-13 21:12:50,316 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:12:50,316 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1430301525] [2019-10-13 21:12:50,317 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:12:50,317 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:12:50,317 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:12:50,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:12:50,803 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2019-10-13 21:12:50,804 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1430301525] [2019-10-13 21:12:50,804 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 21:12:50,804 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2019-10-13 21:12:50,804 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2032888203] [2019-10-13 21:12:50,805 INFO L442 AbstractCegarLoop]: Interpolant automaton has 19 states [2019-10-13 21:12:50,805 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:12:50,805 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2019-10-13 21:12:50,806 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=300, Unknown=0, NotChecked=0, Total=342 [2019-10-13 21:12:50,806 INFO L87 Difference]: Start difference. First operand 492 states and 667 transitions. Second operand 19 states. [2019-10-13 21:12:54,863 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:12:54,864 INFO L93 Difference]: Finished difference Result 1632 states and 2213 transitions. [2019-10-13 21:12:54,864 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2019-10-13 21:12:54,865 INFO L78 Accepts]: Start accepts. Automaton has 19 states. Word has length 197 [2019-10-13 21:12:54,865 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:12:54,875 INFO L225 Difference]: With dead ends: 1632 [2019-10-13 21:12:54,876 INFO L226 Difference]: Without dead ends: 1427 [2019-10-13 21:12:54,879 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 707 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=287, Invalid=2683, Unknown=0, NotChecked=0, Total=2970 [2019-10-13 21:12:54,881 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1427 states. [2019-10-13 21:12:54,958 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1427 to 1390. [2019-10-13 21:12:54,959 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1390 states. [2019-10-13 21:12:54,967 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1390 states to 1390 states and 1897 transitions. [2019-10-13 21:12:54,967 INFO L78 Accepts]: Start accepts. Automaton has 1390 states and 1897 transitions. Word has length 197 [2019-10-13 21:12:54,968 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:12:54,968 INFO L462 AbstractCegarLoop]: Abstraction has 1390 states and 1897 transitions. [2019-10-13 21:12:54,968 INFO L463 AbstractCegarLoop]: Interpolant automaton has 19 states. [2019-10-13 21:12:54,968 INFO L276 IsEmpty]: Start isEmpty. Operand 1390 states and 1897 transitions. [2019-10-13 21:12:54,974 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 199 [2019-10-13 21:12:54,974 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:12:54,975 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 21:12:54,975 INFO L410 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:12:54,975 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:12:54,976 INFO L82 PathProgramCache]: Analyzing trace with hash 309681099, now seen corresponding path program 1 times [2019-10-13 21:12:54,976 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:12:54,976 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1685829076] [2019-10-13 21:12:54,976 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:12:54,976 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:12:54,977 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:12:55,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:12:55,246 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2019-10-13 21:12:55,246 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1685829076] [2019-10-13 21:12:55,247 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 21:12:55,247 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2019-10-13 21:12:55,247 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [571184829] [2019-10-13 21:12:55,248 INFO L442 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-10-13 21:12:55,248 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:12:55,248 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-10-13 21:12:55,248 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2019-10-13 21:12:55,249 INFO L87 Difference]: Start difference. First operand 1390 states and 1897 transitions. Second operand 9 states. [2019-10-13 21:12:55,528 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:12:55,528 INFO L93 Difference]: Finished difference Result 2315 states and 3109 transitions. [2019-10-13 21:12:55,528 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2019-10-13 21:12:55,529 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 198 [2019-10-13 21:12:55,529 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:12:55,540 INFO L225 Difference]: With dead ends: 2315 [2019-10-13 21:12:55,540 INFO L226 Difference]: Without dead ends: 1436 [2019-10-13 21:12:55,545 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=45, Invalid=165, Unknown=0, NotChecked=0, Total=210 [2019-10-13 21:12:55,548 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1436 states. [2019-10-13 21:12:55,644 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1436 to 1436. [2019-10-13 21:12:55,645 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1436 states. [2019-10-13 21:12:55,655 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1436 states to 1436 states and 1970 transitions. [2019-10-13 21:12:55,656 INFO L78 Accepts]: Start accepts. Automaton has 1436 states and 1970 transitions. Word has length 198 [2019-10-13 21:12:55,657 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:12:55,657 INFO L462 AbstractCegarLoop]: Abstraction has 1436 states and 1970 transitions. [2019-10-13 21:12:55,657 INFO L463 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-10-13 21:12:55,657 INFO L276 IsEmpty]: Start isEmpty. Operand 1436 states and 1970 transitions. [2019-10-13 21:12:55,666 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 199 [2019-10-13 21:12:55,666 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:12:55,666 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 21:12:55,667 INFO L410 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:12:55,667 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:12:55,668 INFO L82 PathProgramCache]: Analyzing trace with hash 1834515197, now seen corresponding path program 1 times [2019-10-13 21:12:55,668 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:12:55,668 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [922940709] [2019-10-13 21:12:55,668 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:12:55,669 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:12:55,669 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:12:55,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:12:55,915 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2019-10-13 21:12:55,915 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [922940709] [2019-10-13 21:12:55,916 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 21:12:55,916 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-10-13 21:12:55,916 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [586132145] [2019-10-13 21:12:55,917 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-13 21:12:55,917 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:12:55,918 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-13 21:12:55,918 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-10-13 21:12:55,918 INFO L87 Difference]: Start difference. First operand 1436 states and 1970 transitions. Second operand 5 states. [2019-10-13 21:12:57,179 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:12:57,180 INFO L93 Difference]: Finished difference Result 3494 states and 4736 transitions. [2019-10-13 21:12:57,184 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-10-13 21:12:57,184 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 198 [2019-10-13 21:12:57,185 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:12:57,210 INFO L225 Difference]: With dead ends: 3494 [2019-10-13 21:12:57,210 INFO L226 Difference]: Without dead ends: 3040 [2019-10-13 21:12:57,217 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2019-10-13 21:12:57,222 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3040 states. [2019-10-13 21:12:57,421 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3040 to 3020. [2019-10-13 21:12:57,421 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3020 states. [2019-10-13 21:12:57,440 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3020 states to 3020 states and 4117 transitions. [2019-10-13 21:12:57,441 INFO L78 Accepts]: Start accepts. Automaton has 3020 states and 4117 transitions. Word has length 198 [2019-10-13 21:12:57,443 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:12:57,443 INFO L462 AbstractCegarLoop]: Abstraction has 3020 states and 4117 transitions. [2019-10-13 21:12:57,443 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-13 21:12:57,443 INFO L276 IsEmpty]: Start isEmpty. Operand 3020 states and 4117 transitions. [2019-10-13 21:12:57,452 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 199 [2019-10-13 21:12:57,453 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:12:57,453 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 21:12:57,453 INFO L410 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:12:57,453 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:12:57,454 INFO L82 PathProgramCache]: Analyzing trace with hash -1351636900, now seen corresponding path program 1 times [2019-10-13 21:12:57,454 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:12:57,454 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [501905081] [2019-10-13 21:12:57,454 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:12:57,454 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:12:57,455 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:12:57,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:12:57,723 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2019-10-13 21:12:57,724 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [501905081] [2019-10-13 21:12:57,724 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 21:12:57,724 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-10-13 21:12:57,724 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [48256491] [2019-10-13 21:12:57,725 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-10-13 21:12:57,726 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:12:57,726 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-10-13 21:12:57,726 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-10-13 21:12:57,727 INFO L87 Difference]: Start difference. First operand 3020 states and 4117 transitions. Second operand 6 states. [2019-10-13 21:12:58,344 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:12:58,345 INFO L93 Difference]: Finished difference Result 8271 states and 11200 transitions. [2019-10-13 21:12:58,345 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-10-13 21:12:58,345 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 198 [2019-10-13 21:12:58,348 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:12:58,395 INFO L225 Difference]: With dead ends: 8271 [2019-10-13 21:12:58,395 INFO L226 Difference]: Without dead ends: 6075 [2019-10-13 21:12:58,406 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2019-10-13 21:12:58,415 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6075 states. [2019-10-13 21:12:58,897 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6075 to 6032. [2019-10-13 21:12:58,897 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6032 states. [2019-10-13 21:12:58,935 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6032 states to 6032 states and 8228 transitions. [2019-10-13 21:12:58,936 INFO L78 Accepts]: Start accepts. Automaton has 6032 states and 8228 transitions. Word has length 198 [2019-10-13 21:12:58,937 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:12:58,937 INFO L462 AbstractCegarLoop]: Abstraction has 6032 states and 8228 transitions. [2019-10-13 21:12:58,937 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-10-13 21:12:58,937 INFO L276 IsEmpty]: Start isEmpty. Operand 6032 states and 8228 transitions. [2019-10-13 21:12:58,959 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 200 [2019-10-13 21:12:58,960 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:12:58,960 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 21:12:58,960 INFO L410 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:12:58,961 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:12:58,961 INFO L82 PathProgramCache]: Analyzing trace with hash 156692310, now seen corresponding path program 1 times [2019-10-13 21:12:58,961 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:12:58,962 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1054247934] [2019-10-13 21:12:58,962 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:12:58,962 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:12:58,962 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:12:59,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:12:59,312 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2019-10-13 21:12:59,312 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1054247934] [2019-10-13 21:12:59,313 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 21:12:59,313 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2019-10-13 21:12:59,313 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1821891487] [2019-10-13 21:12:59,315 INFO L442 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-10-13 21:12:59,315 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:12:59,316 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-10-13 21:12:59,316 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2019-10-13 21:12:59,316 INFO L87 Difference]: Start difference. First operand 6032 states and 8228 transitions. Second operand 9 states. [2019-10-13 21:12:59,681 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:12:59,682 INFO L93 Difference]: Finished difference Result 11011 states and 14871 transitions. [2019-10-13 21:12:59,682 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2019-10-13 21:12:59,682 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 199 [2019-10-13 21:12:59,683 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:12:59,726 INFO L225 Difference]: With dead ends: 11011 [2019-10-13 21:12:59,726 INFO L226 Difference]: Without dead ends: 6562 [2019-10-13 21:12:59,746 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=105, Unknown=0, NotChecked=0, Total=132 [2019-10-13 21:12:59,756 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6562 states. [2019-10-13 21:13:00,094 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6562 to 6532. [2019-10-13 21:13:00,094 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6532 states. [2019-10-13 21:13:00,125 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6532 states to 6532 states and 8968 transitions. [2019-10-13 21:13:00,126 INFO L78 Accepts]: Start accepts. Automaton has 6532 states and 8968 transitions. Word has length 199 [2019-10-13 21:13:00,127 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:13:00,127 INFO L462 AbstractCegarLoop]: Abstraction has 6532 states and 8968 transitions. [2019-10-13 21:13:00,127 INFO L463 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-10-13 21:13:00,128 INFO L276 IsEmpty]: Start isEmpty. Operand 6532 states and 8968 transitions. [2019-10-13 21:13:00,147 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 201 [2019-10-13 21:13:00,147 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:13:00,147 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 21:13:00,148 INFO L410 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:13:00,148 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:13:00,148 INFO L82 PathProgramCache]: Analyzing trace with hash 1972860762, now seen corresponding path program 1 times [2019-10-13 21:13:00,149 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:13:00,149 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1696704804] [2019-10-13 21:13:00,149 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:13:00,149 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:13:00,150 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:13:00,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:13:00,416 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2019-10-13 21:13:00,417 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1696704804] [2019-10-13 21:13:00,417 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 21:13:00,418 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-10-13 21:13:00,419 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [152496694] [2019-10-13 21:13:00,419 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-10-13 21:13:00,420 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:13:00,420 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-10-13 21:13:00,420 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-10-13 21:13:00,420 INFO L87 Difference]: Start difference. First operand 6532 states and 8968 transitions. Second operand 6 states. [2019-10-13 21:13:01,188 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:13:01,189 INFO L93 Difference]: Finished difference Result 18148 states and 24739 transitions. [2019-10-13 21:13:01,189 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-10-13 21:13:01,189 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 200 [2019-10-13 21:13:01,190 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:13:01,277 INFO L225 Difference]: With dead ends: 18148 [2019-10-13 21:13:01,277 INFO L226 Difference]: Without dead ends: 13199 [2019-10-13 21:13:01,301 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2019-10-13 21:13:01,320 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13199 states. [2019-10-13 21:13:01,957 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13199 to 13036. [2019-10-13 21:13:01,958 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13036 states. [2019-10-13 21:13:02,004 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13036 states to 13036 states and 17919 transitions. [2019-10-13 21:13:02,006 INFO L78 Accepts]: Start accepts. Automaton has 13036 states and 17919 transitions. Word has length 200 [2019-10-13 21:13:02,007 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:13:02,008 INFO L462 AbstractCegarLoop]: Abstraction has 13036 states and 17919 transitions. [2019-10-13 21:13:02,008 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-10-13 21:13:02,008 INFO L276 IsEmpty]: Start isEmpty. Operand 13036 states and 17919 transitions. [2019-10-13 21:13:02,035 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 202 [2019-10-13 21:13:02,035 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:13:02,036 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 21:13:02,036 INFO L410 AbstractCegarLoop]: === Iteration 10 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:13:02,036 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:13:02,037 INFO L82 PathProgramCache]: Analyzing trace with hash -1385655780, now seen corresponding path program 1 times [2019-10-13 21:13:02,037 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:13:02,037 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2032537610] [2019-10-13 21:13:02,037 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:13:02,037 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:13:02,038 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:13:02,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:13:02,243 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2019-10-13 21:13:02,244 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2032537610] [2019-10-13 21:13:02,244 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 21:13:02,244 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2019-10-13 21:13:02,244 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [476596176] [2019-10-13 21:13:02,246 INFO L442 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-10-13 21:13:02,246 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:13:02,247 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-10-13 21:13:02,247 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2019-10-13 21:13:02,247 INFO L87 Difference]: Start difference. First operand 13036 states and 17919 transitions. Second operand 9 states. [2019-10-13 21:13:03,260 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:13:03,260 INFO L93 Difference]: Finished difference Result 24391 states and 33443 transitions. [2019-10-13 21:13:03,261 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2019-10-13 21:13:03,261 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 201 [2019-10-13 21:13:03,261 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:13:03,335 INFO L225 Difference]: With dead ends: 24391 [2019-10-13 21:13:03,335 INFO L226 Difference]: Without dead ends: 14456 [2019-10-13 21:13:03,375 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=105, Unknown=0, NotChecked=0, Total=132 [2019-10-13 21:13:03,394 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14456 states. [2019-10-13 21:13:03,989 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14456 to 14326. [2019-10-13 21:13:03,989 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14326 states. [2019-10-13 21:13:04,038 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14326 states to 14326 states and 19899 transitions. [2019-10-13 21:13:04,042 INFO L78 Accepts]: Start accepts. Automaton has 14326 states and 19899 transitions. Word has length 201 [2019-10-13 21:13:04,042 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:13:04,042 INFO L462 AbstractCegarLoop]: Abstraction has 14326 states and 19899 transitions. [2019-10-13 21:13:04,043 INFO L463 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-10-13 21:13:04,043 INFO L276 IsEmpty]: Start isEmpty. Operand 14326 states and 19899 transitions. [2019-10-13 21:13:04,068 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 203 [2019-10-13 21:13:04,068 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:13:04,069 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 21:13:04,069 INFO L410 AbstractCegarLoop]: === Iteration 11 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:13:04,069 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:13:04,070 INFO L82 PathProgramCache]: Analyzing trace with hash -221138788, now seen corresponding path program 1 times [2019-10-13 21:13:04,070 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:13:04,070 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [716748261] [2019-10-13 21:13:04,070 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:13:04,070 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:13:04,071 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:13:04,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:13:04,374 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2019-10-13 21:13:04,375 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [716748261] [2019-10-13 21:13:04,375 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 21:13:04,375 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-10-13 21:13:04,375 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [87007964] [2019-10-13 21:13:04,376 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-10-13 21:13:04,376 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:13:04,376 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-10-13 21:13:04,377 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-10-13 21:13:04,377 INFO L87 Difference]: Start difference. First operand 14326 states and 19899 transitions. Second operand 6 states. [2019-10-13 21:13:05,564 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:13:05,565 INFO L93 Difference]: Finished difference Result 39463 states and 54578 transitions. [2019-10-13 21:13:05,565 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-10-13 21:13:05,565 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 202 [2019-10-13 21:13:05,566 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:13:05,662 INFO L225 Difference]: With dead ends: 39463 [2019-10-13 21:13:05,662 INFO L226 Difference]: Without dead ends: 25937 [2019-10-13 21:13:05,709 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2019-10-13 21:13:05,740 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25937 states. [2019-10-13 21:13:06,990 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25937 to 25642. [2019-10-13 21:13:06,990 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 25642 states. [2019-10-13 21:13:07,051 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25642 states to 25642 states and 35837 transitions. [2019-10-13 21:13:07,055 INFO L78 Accepts]: Start accepts. Automaton has 25642 states and 35837 transitions. Word has length 202 [2019-10-13 21:13:07,055 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:13:07,055 INFO L462 AbstractCegarLoop]: Abstraction has 25642 states and 35837 transitions. [2019-10-13 21:13:07,055 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-10-13 21:13:07,056 INFO L276 IsEmpty]: Start isEmpty. Operand 25642 states and 35837 transitions. [2019-10-13 21:13:07,097 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 214 [2019-10-13 21:13:07,098 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:13:07,098 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 21:13:07,099 INFO L410 AbstractCegarLoop]: === Iteration 12 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:13:07,099 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:13:07,099 INFO L82 PathProgramCache]: Analyzing trace with hash -1368778680, now seen corresponding path program 1 times [2019-10-13 21:13:07,099 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:13:07,099 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1465268317] [2019-10-13 21:13:07,100 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:13:07,100 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:13:07,100 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:13:07,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:13:07,217 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2019-10-13 21:13:07,217 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1465268317] [2019-10-13 21:13:07,218 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 21:13:07,218 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-13 21:13:07,218 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1254615042] [2019-10-13 21:13:07,219 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-13 21:13:07,219 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:13:07,219 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-13 21:13:07,219 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 21:13:07,219 INFO L87 Difference]: Start difference. First operand 25642 states and 35837 transitions. Second operand 3 states. [2019-10-13 21:13:07,767 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:13:07,767 INFO L93 Difference]: Finished difference Result 53186 states and 75254 transitions. [2019-10-13 21:13:07,767 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-13 21:13:07,767 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 213 [2019-10-13 21:13:07,768 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:13:08,989 INFO L225 Difference]: With dead ends: 53186 [2019-10-13 21:13:08,990 INFO L226 Difference]: Without dead ends: 27607 [2019-10-13 21:13:09,041 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 21:13:09,064 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27607 states. [2019-10-13 21:13:10,013 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27607 to 27586. [2019-10-13 21:13:10,013 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 27586 states. [2019-10-13 21:13:10,076 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27586 states to 27586 states and 39419 transitions. [2019-10-13 21:13:10,083 INFO L78 Accepts]: Start accepts. Automaton has 27586 states and 39419 transitions. Word has length 213 [2019-10-13 21:13:10,083 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:13:10,084 INFO L462 AbstractCegarLoop]: Abstraction has 27586 states and 39419 transitions. [2019-10-13 21:13:10,084 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-13 21:13:10,084 INFO L276 IsEmpty]: Start isEmpty. Operand 27586 states and 39419 transitions. [2019-10-13 21:13:10,134 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 213 [2019-10-13 21:13:10,135 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:13:10,135 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 21:13:10,135 INFO L410 AbstractCegarLoop]: === Iteration 13 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:13:10,136 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:13:10,136 INFO L82 PathProgramCache]: Analyzing trace with hash 1766066792, now seen corresponding path program 1 times [2019-10-13 21:13:10,136 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:13:10,136 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [95325864] [2019-10-13 21:13:10,136 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:13:10,136 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:13:10,137 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:13:10,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:13:10,403 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2019-10-13 21:13:10,403 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [95325864] [2019-10-13 21:13:10,403 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 21:13:10,403 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-13 21:13:10,404 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1471881949] [2019-10-13 21:13:10,404 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-13 21:13:10,404 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:13:10,405 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-13 21:13:10,405 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 21:13:10,405 INFO L87 Difference]: Start difference. First operand 27586 states and 39419 transitions. Second operand 3 states. [2019-10-13 21:13:10,904 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:13:10,905 INFO L93 Difference]: Finished difference Result 58778 states and 85616 transitions. [2019-10-13 21:13:10,905 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-13 21:13:10,905 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 212 [2019-10-13 21:13:10,905 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:13:11,036 INFO L225 Difference]: With dead ends: 58778 [2019-10-13 21:13:11,036 INFO L226 Difference]: Without dead ends: 31255 [2019-10-13 21:13:11,121 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 21:13:11,156 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31255 states. [2019-10-13 21:13:12,500 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31255 to 31234. [2019-10-13 21:13:12,501 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 31234 states. [2019-10-13 21:13:12,579 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31234 states to 31234 states and 46151 transitions. [2019-10-13 21:13:12,584 INFO L78 Accepts]: Start accepts. Automaton has 31234 states and 46151 transitions. Word has length 212 [2019-10-13 21:13:12,585 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:13:12,585 INFO L462 AbstractCegarLoop]: Abstraction has 31234 states and 46151 transitions. [2019-10-13 21:13:12,585 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-13 21:13:12,585 INFO L276 IsEmpty]: Start isEmpty. Operand 31234 states and 46151 transitions. [2019-10-13 21:13:12,621 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 214 [2019-10-13 21:13:12,621 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:13:12,621 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 21:13:12,622 INFO L410 AbstractCegarLoop]: === Iteration 14 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:13:12,622 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:13:12,622 INFO L82 PathProgramCache]: Analyzing trace with hash -569401298, now seen corresponding path program 1 times [2019-10-13 21:13:12,622 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:13:12,622 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1182815213] [2019-10-13 21:13:12,623 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:13:12,623 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:13:12,623 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:13:12,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:13:12,747 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2019-10-13 21:13:12,747 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1182815213] [2019-10-13 21:13:12,747 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 21:13:12,748 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-13 21:13:12,748 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [408068434] [2019-10-13 21:13:12,748 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-13 21:13:12,749 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:13:12,749 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-13 21:13:12,749 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 21:13:12,749 INFO L87 Difference]: Start difference. First operand 31234 states and 46151 transitions. Second operand 3 states. [2019-10-13 21:13:13,645 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:13:13,645 INFO L93 Difference]: Finished difference Result 69434 states and 105140 transitions. [2019-10-13 21:13:13,646 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-13 21:13:13,646 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 213 [2019-10-13 21:13:13,646 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:13:13,751 INFO L225 Difference]: With dead ends: 69434 [2019-10-13 21:13:13,751 INFO L226 Difference]: Without dead ends: 38263 [2019-10-13 21:13:13,804 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 21:13:13,841 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38263 states.