/usr/bin/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_spec7_product28.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-fb55353 [2019-11-07 00:54:33,431 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-07 00:54:33,434 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-07 00:54:33,446 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-07 00:54:33,447 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-07 00:54:33,448 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-07 00:54:33,449 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-07 00:54:33,451 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-07 00:54:33,453 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-07 00:54:33,454 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-07 00:54:33,455 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-07 00:54:33,456 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-07 00:54:33,456 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-07 00:54:33,457 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-07 00:54:33,458 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-07 00:54:33,459 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-07 00:54:33,463 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-07 00:54:33,466 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-07 00:54:33,468 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-07 00:54:33,472 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-07 00:54:33,474 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-07 00:54:33,479 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-07 00:54:33,482 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-07 00:54:33,482 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-07 00:54:33,485 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-07 00:54:33,489 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-07 00:54:33,489 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-07 00:54:33,490 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-07 00:54:33,491 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-07 00:54:33,492 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-07 00:54:33,492 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-07 00:54:33,496 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-07 00:54:33,497 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-07 00:54:33,499 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-07 00:54:33,500 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-07 00:54:33,500 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-07 00:54:33,504 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-07 00:54:33,504 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-07 00:54:33,504 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-07 00:54:33,505 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-07 00:54:33,506 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-07 00:54:33,507 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 [2019-11-07 00:54:33,529 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-07 00:54:33,529 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-07 00:54:33,531 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-07 00:54:33,532 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-07 00:54:33,532 INFO L138 SettingsManager]: * Use SBE=true [2019-11-07 00:54:33,532 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-07 00:54:33,532 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-07 00:54:33,532 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-07 00:54:33,533 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-07 00:54:33,533 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-07 00:54:33,534 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-07 00:54:33,534 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-07 00:54:33,534 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-07 00:54:33,535 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-07 00:54:33,535 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-07 00:54:33,535 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-07 00:54:33,535 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-07 00:54:33,536 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-07 00:54:33,536 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-07 00:54:33,536 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-07 00:54:33,536 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-07 00:54:33,537 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-07 00:54:33,537 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-07 00:54:33,537 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-07 00:54:33,537 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-07 00:54:33,537 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-07 00:54:33,538 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-07 00:54:33,538 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-07 00:54:33,538 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 [2019-11-07 00:54:33,824 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-07 00:54:33,838 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-07 00:54:33,841 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-07 00:54:33,843 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-07 00:54:33,844 INFO L275 PluginConnector]: CDTParser initialized [2019-11-07 00:54:33,844 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/email_spec7_product28.cil.c [2019-11-07 00:54:33,917 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2e908e21d/a323d715a9974eeba96bac0d864cb248/FLAG7e63dddac [2019-11-07 00:54:34,544 INFO L306 CDTParser]: Found 1 translation units. [2019-11-07 00:54:34,545 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/email_spec7_product28.cil.c [2019-11-07 00:54:34,574 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2e908e21d/a323d715a9974eeba96bac0d864cb248/FLAG7e63dddac [2019-11-07 00:54:34,762 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2e908e21d/a323d715a9974eeba96bac0d864cb248 [2019-11-07 00:54:34,772 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-07 00:54:34,774 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-11-07 00:54:34,775 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-07 00:54:34,775 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-07 00:54:34,779 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-07 00:54:34,780 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 12:54:34" (1/1) ... [2019-11-07 00:54:34,787 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@18316cf8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:54:34, skipping insertion in model container [2019-11-07 00:54:34,787 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 12:54:34" (1/1) ... [2019-11-07 00:54:34,795 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-07 00:54:34,875 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-07 00:54:35,599 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-07 00:54:35,618 INFO L188 MainTranslator]: Completed pre-run [2019-11-07 00:54:35,872 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-07 00:54:35,963 INFO L192 MainTranslator]: Completed translation [2019-11-07 00:54:35,964 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:54:35 WrapperNode [2019-11-07 00:54:35,964 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-07 00:54:35,965 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-07 00:54:35,965 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-07 00:54:35,965 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-07 00:54:35,979 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:54:35" (1/1) ... [2019-11-07 00:54:35,980 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:54:35" (1/1) ... [2019-11-07 00:54:36,009 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:54:35" (1/1) ... [2019-11-07 00:54:36,009 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:54:35" (1/1) ... [2019-11-07 00:54:36,067 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:54:35" (1/1) ... [2019-11-07 00:54:36,093 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:54:35" (1/1) ... [2019-11-07 00:54:36,106 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:54:35" (1/1) ... [2019-11-07 00:54:36,139 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-07 00:54:36,140 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-07 00:54:36,140 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-07 00:54:36,140 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-07 00:54:36,141 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:54:35" (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 [2019-11-07 00:54:36,219 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-11-07 00:54:36,219 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-07 00:54:36,219 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-11-07 00:54:36,220 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-11-07 00:54:36,220 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__Keys [2019-11-07 00:54:36,221 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__Encrypt [2019-11-07 00:54:36,221 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__Sign [2019-11-07 00:54:36,221 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail [2019-11-07 00:54:36,221 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable__wrappee__Keys [2019-11-07 00:54:36,222 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2019-11-07 00:54:36,222 INFO L138 BoogieDeclarations]: Found implementation of procedure cloneEmail [2019-11-07 00:54:36,222 INFO L138 BoogieDeclarations]: Found implementation of procedure createEmail [2019-11-07 00:54:36,223 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-11-07 00:54:36,224 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-11-07 00:54:36,224 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-11-07 00:54:36,224 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-11-07 00:54:36,226 INFO L138 BoogieDeclarations]: Found implementation of procedure mail [2019-11-07 00:54:36,226 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__Keys [2019-11-07 00:54:36,227 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__Encrypt [2019-11-07 00:54:36,227 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2019-11-07 00:54:36,227 INFO L138 BoogieDeclarations]: Found implementation of procedure deliver [2019-11-07 00:54:36,227 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Sign [2019-11-07 00:54:36,228 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Verify [2019-11-07 00:54:36,228 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming [2019-11-07 00:54:36,228 INFO L138 BoogieDeclarations]: Found implementation of procedure createClient [2019-11-07 00:54:36,228 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2019-11-07 00:54:36,228 INFO L138 BoogieDeclarations]: Found implementation of procedure queue [2019-11-07 00:54:36,229 INFO L138 BoogieDeclarations]: Found implementation of procedure is_queue_empty [2019-11-07 00:54:36,229 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_client [2019-11-07 00:54:36,229 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_email [2019-11-07 00:54:36,230 INFO L138 BoogieDeclarations]: Found implementation of procedure isKeyPairValid [2019-11-07 00:54:36,230 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2019-11-07 00:54:36,230 INFO L138 BoogieDeclarations]: Found implementation of procedure sign [2019-11-07 00:54:36,231 INFO L138 BoogieDeclarations]: Found implementation of procedure verify [2019-11-07 00:54:36,231 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob__wrappee__Base [2019-11-07 00:54:36,231 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob [2019-11-07 00:54:36,232 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh__wrappee__Base [2019-11-07 00:54:36,232 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh [2019-11-07 00:54:36,232 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck__wrappee__Base [2019-11-07 00:54:36,232 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck [2019-11-07 00:54:36,232 INFO L138 BoogieDeclarations]: Found implementation of procedure bobToRjh [2019-11-07 00:54:36,233 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhToBob [2019-11-07 00:54:36,233 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-11-07 00:54:36,233 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-11-07 00:54:36,233 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAdd [2019-11-07 00:54:36,233 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAdd [2019-11-07 00:54:36,233 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAddChuck [2019-11-07 00:54:36,234 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAddChuck [2019-11-07 00:54:36,234 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2019-11-07 00:54:36,234 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAddRjh [2019-11-07 00:54:36,234 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhDeletePrivateKey [2019-11-07 00:54:36,234 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyChange [2019-11-07 00:54:36,235 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyChange [2019-11-07 00:54:36,235 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-11-07 00:54:36,235 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__EncryptVerify_spec__1 [2019-11-07 00:54:36,235 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-11-07 00:54:36,235 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-11-07 00:54:36,235 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-11-07 00:54:36,236 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-11-07 00:54:36,236 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-11-07 00:54:36,236 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-11-07 00:54:36,236 INFO L138 BoogieDeclarations]: Found implementation of procedure prompt [2019-11-07 00:54:36,237 INFO L138 BoogieDeclarations]: Found implementation of procedure initClient [2019-11-07 00:54:36,237 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientName [2019-11-07 00:54:36,237 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientName [2019-11-07 00:54:36,238 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientOutbuffer [2019-11-07 00:54:36,238 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientOutbuffer [2019-11-07 00:54:36,238 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookSize [2019-11-07 00:54:36,238 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookSize [2019-11-07 00:54:36,238 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientAddressBookEntry [2019-11-07 00:54:36,238 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAlias [2019-11-07 00:54:36,239 INFO L138 BoogieDeclarations]: Found implementation of procedure findClientAddressBookAlias [2019-11-07 00:54:36,239 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAlias [2019-11-07 00:54:36,240 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAddress [2019-11-07 00:54:36,240 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAddress [2019-11-07 00:54:36,240 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAutoResponse [2019-11-07 00:54:36,240 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAutoResponse [2019-11-07 00:54:36,240 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientPrivateKey [2019-11-07 00:54:36,240 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2019-11-07 00:54:36,241 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringSize [2019-11-07 00:54:36,241 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringSize [2019-11-07 00:54:36,241 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2019-11-07 00:54:36,242 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringUser [2019-11-07 00:54:36,242 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2019-11-07 00:54:36,243 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringPublicKey [2019-11-07 00:54:36,243 INFO L138 BoogieDeclarations]: Found implementation of procedure findPublicKey [2019-11-07 00:54:36,243 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2019-11-07 00:54:36,244 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientForwardReceiver [2019-11-07 00:54:36,244 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientForwardReceiver [2019-11-07 00:54:36,244 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientId [2019-11-07 00:54:36,244 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2019-11-07 00:54:36,245 INFO L138 BoogieDeclarations]: Found implementation of procedure initEmail [2019-11-07 00:54:36,245 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailId [2019-11-07 00:54:36,245 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailId [2019-11-07 00:54:36,245 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2019-11-07 00:54:36,245 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2019-11-07 00:54:36,245 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2019-11-07 00:54:36,246 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2019-11-07 00:54:36,246 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSubject [2019-11-07 00:54:36,246 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSubject [2019-11-07 00:54:36,246 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailBody [2019-11-07 00:54:36,246 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailBody [2019-11-07 00:54:36,246 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2019-11-07 00:54:36,247 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2019-11-07 00:54:36,247 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2019-11-07 00:54:36,247 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2019-11-07 00:54:36,247 INFO L138 BoogieDeclarations]: Found implementation of procedure isSigned [2019-11-07 00:54:36,247 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSigned [2019-11-07 00:54:36,247 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSignKey [2019-11-07 00:54:36,247 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSignKey [2019-11-07 00:54:36,248 INFO L138 BoogieDeclarations]: Found implementation of procedure isVerified [2019-11-07 00:54:36,248 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSignatureVerified [2019-11-07 00:54:36,248 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-11-07 00:54:36,248 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-11-07 00:54:36,248 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-11-07 00:54:36,249 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-11-07 00:54:36,249 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailId [2019-11-07 00:54:36,249 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2019-11-07 00:54:36,249 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2019-11-07 00:54:36,249 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2019-11-07 00:54:36,250 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2019-11-07 00:54:36,250 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2019-11-07 00:54:36,250 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2019-11-07 00:54:36,250 INFO L130 BoogieDeclarations]: Found specification of procedure isSigned [2019-11-07 00:54:36,252 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSignKey [2019-11-07 00:54:36,252 INFO L130 BoogieDeclarations]: Found specification of procedure isVerified [2019-11-07 00:54:36,252 INFO L130 BoogieDeclarations]: Found specification of procedure printMail [2019-11-07 00:54:36,252 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2019-11-07 00:54:36,252 INFO L130 BoogieDeclarations]: Found specification of procedure createEmail [2019-11-07 00:54:36,252 INFO L130 BoogieDeclarations]: Found specification of procedure cloneEmail [2019-11-07 00:54:36,252 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__Keys [2019-11-07 00:54:36,253 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-07 00:54:36,253 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__Encrypt [2019-11-07 00:54:36,253 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__Sign [2019-11-07 00:54:36,253 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable__wrappee__Keys [2019-11-07 00:54:36,254 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-11-07 00:54:36,254 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-11-07 00:54:36,257 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-11-07 00:54:36,257 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-11-07 00:54:36,258 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2019-11-07 00:54:36,258 INFO L130 BoogieDeclarations]: Found specification of procedure initClient [2019-11-07 00:54:36,258 INFO L130 BoogieDeclarations]: Found specification of procedure getClientPrivateKey [2019-11-07 00:54:36,258 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2019-11-07 00:54:36,259 INFO L130 BoogieDeclarations]: Found specification of procedure getClientId [2019-11-07 00:54:36,265 INFO L130 BoogieDeclarations]: Found specification of procedure findPublicKey [2019-11-07 00:54:36,266 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2019-11-07 00:54:36,267 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2019-11-07 00:54:36,267 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSigned [2019-11-07 00:54:36,267 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSignKey [2019-11-07 00:54:36,267 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSignatureVerified [2019-11-07 00:54:36,268 INFO L130 BoogieDeclarations]: Found specification of procedure queue [2019-11-07 00:54:36,268 INFO L130 BoogieDeclarations]: Found specification of procedure is_queue_empty [2019-11-07 00:54:36,268 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_client [2019-11-07 00:54:36,268 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_email [2019-11-07 00:54:36,268 INFO L130 BoogieDeclarations]: Found specification of procedure mail [2019-11-07 00:54:36,268 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2019-11-07 00:54:36,268 INFO L130 BoogieDeclarations]: Found specification of procedure deliver [2019-11-07 00:54:36,268 INFO L130 BoogieDeclarations]: Found specification of procedure incoming [2019-11-07 00:54:36,269 INFO L130 BoogieDeclarations]: Found specification of procedure createClient [2019-11-07 00:54:36,269 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2019-11-07 00:54:36,269 INFO L130 BoogieDeclarations]: Found specification of procedure isKeyPairValid [2019-11-07 00:54:36,269 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2019-11-07 00:54:36,269 INFO L130 BoogieDeclarations]: Found specification of procedure sign [2019-11-07 00:54:36,269 INFO L130 BoogieDeclarations]: Found specification of procedure verify [2019-11-07 00:54:36,269 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__Keys [2019-11-07 00:54:36,269 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__Encrypt [2019-11-07 00:54:36,269 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Sign [2019-11-07 00:54:36,270 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Verify [2019-11-07 00:54:36,270 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__EncryptVerify_spec__1 [2019-11-07 00:54:36,270 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2019-11-07 00:54:36,270 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringUser [2019-11-07 00:54:36,270 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2019-11-07 00:54:36,270 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringPublicKey [2019-11-07 00:54:36,270 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2019-11-07 00:54:36,270 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2019-11-07 00:54:36,270 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob [2019-11-07 00:54:36,271 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh [2019-11-07 00:54:36,271 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck [2019-11-07 00:54:36,271 INFO L130 BoogieDeclarations]: Found specification of procedure bobToRjh [2019-11-07 00:54:36,271 INFO L130 BoogieDeclarations]: Found specification of procedure rjhToBob [2019-11-07 00:54:36,271 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-11-07 00:54:36,271 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-11-07 00:54:36,271 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-11-07 00:54:36,271 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAdd [2019-11-07 00:54:36,272 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAddChuck [2019-11-07 00:54:36,272 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAdd [2019-11-07 00:54:36,272 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAddChuck [2019-11-07 00:54:36,272 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2019-11-07 00:54:36,272 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyChange [2019-11-07 00:54:36,272 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyChange [2019-11-07 00:54:36,272 INFO L130 BoogieDeclarations]: Found specification of procedure rjhDeletePrivateKey [2019-11-07 00:54:36,272 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAddRjh [2019-11-07 00:54:36,273 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob__wrappee__Base [2019-11-07 00:54:36,273 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh__wrappee__Base [2019-11-07 00:54:36,273 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck__wrappee__Base [2019-11-07 00:54:36,273 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-11-07 00:54:36,273 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-11-07 00:54:36,273 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-11-07 00:54:36,273 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-11-07 00:54:36,274 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-11-07 00:54:36,274 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-11-07 00:54:36,274 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-11-07 00:54:36,274 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-11-07 00:54:36,274 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-11-07 00:54:36,274 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-07 00:54:36,274 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-11-07 00:54:36,274 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-11-07 00:54:36,275 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-11-07 00:54:36,275 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-11-07 00:54:36,275 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-11-07 00:54:36,275 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-11-07 00:54:36,275 INFO L130 BoogieDeclarations]: Found specification of procedure prompt [2019-11-07 00:54:36,275 INFO L130 BoogieDeclarations]: Found specification of procedure getClientName [2019-11-07 00:54:36,275 INFO L130 BoogieDeclarations]: Found specification of procedure setClientName [2019-11-07 00:54:36,275 INFO L130 BoogieDeclarations]: Found specification of procedure getClientOutbuffer [2019-11-07 00:54:36,276 INFO L130 BoogieDeclarations]: Found specification of procedure setClientOutbuffer [2019-11-07 00:54:36,276 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookSize [2019-11-07 00:54:36,276 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookSize [2019-11-07 00:54:36,276 INFO L130 BoogieDeclarations]: Found specification of procedure createClientAddressBookEntry [2019-11-07 00:54:36,276 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAlias [2019-11-07 00:54:36,276 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAlias [2019-11-07 00:54:36,276 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAddress [2019-11-07 00:54:36,276 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAddress [2019-11-07 00:54:36,277 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAutoResponse [2019-11-07 00:54:36,277 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAutoResponse [2019-11-07 00:54:36,277 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringSize [2019-11-07 00:54:36,277 INFO L130 BoogieDeclarations]: Found specification of procedure getClientForwardReceiver [2019-11-07 00:54:36,277 INFO L130 BoogieDeclarations]: Found specification of procedure setClientForwardReceiver [2019-11-07 00:54:36,277 INFO L130 BoogieDeclarations]: Found specification of procedure findClientAddressBookAlias [2019-11-07 00:54:36,277 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringSize [2019-11-07 00:54:36,277 INFO L130 BoogieDeclarations]: Found specification of procedure initEmail [2019-11-07 00:54:36,278 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailId [2019-11-07 00:54:36,278 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSubject [2019-11-07 00:54:36,278 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSubject [2019-11-07 00:54:36,278 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailBody [2019-11-07 00:54:36,278 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailBody [2019-11-07 00:54:36,278 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-11-07 00:54:36,278 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-11-07 00:54:36,278 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-07 00:54:38,612 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-07 00:54:38,613 INFO L284 CfgBuilder]: Removed 4 assume(true) statements. [2019-11-07 00:54:38,615 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 12:54:38 BoogieIcfgContainer [2019-11-07 00:54:38,615 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-07 00:54:38,616 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-07 00:54:38,616 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-07 00:54:38,619 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-07 00:54:38,620 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 12:54:34" (1/3) ... [2019-11-07 00:54:38,620 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@104738e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 12:54:38, skipping insertion in model container [2019-11-07 00:54:38,620 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:54:35" (2/3) ... [2019-11-07 00:54:38,621 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@104738e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 12:54:38, skipping insertion in model container [2019-11-07 00:54:38,621 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 12:54:38" (3/3) ... [2019-11-07 00:54:38,623 INFO L109 eAbstractionObserver]: Analyzing ICFG email_spec7_product28.cil.c [2019-11-07 00:54:38,632 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-07 00:54:38,644 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-07 00:54:38,655 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-07 00:54:38,711 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-07 00:54:38,711 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-07 00:54:38,711 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-07 00:54:38,711 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-07 00:54:38,711 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-07 00:54:38,711 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-07 00:54:38,712 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-07 00:54:38,712 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-07 00:54:38,751 INFO L276 IsEmpty]: Start isEmpty. Operand 505 states. [2019-11-07 00:54:38,790 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2019-11-07 00:54:38,790 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 00:54:38,791 INFO L410 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] [2019-11-07 00:54:38,793 INFO L410 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 00:54:38,797 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 00:54:38,798 INFO L82 PathProgramCache]: Analyzing trace with hash 791417093, now seen corresponding path program 1 times [2019-11-07 00:54:38,807 INFO L161 FreeRefinementEngine]: Executing refinement strategy TAIPAN [2019-11-07 00:54:38,807 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1945912296] [2019-11-07 00:54:38,808 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 00:54:39,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 00:54:39,464 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2019-11-07 00:54:39,465 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1945912296] [2019-11-07 00:54:39,466 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 00:54:39,467 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-11-07 00:54:39,468 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [652659627] [2019-11-07 00:54:39,474 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-11-07 00:54:39,476 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-11-07 00:54:39,489 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-11-07 00:54:39,490 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-11-07 00:54:39,492 INFO L87 Difference]: Start difference. First operand 505 states. Second operand 2 states. [2019-11-07 00:54:39,585 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 00:54:39,585 INFO L93 Difference]: Finished difference Result 707 states and 939 transitions. [2019-11-07 00:54:39,585 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-11-07 00:54:39,588 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 182 [2019-11-07 00:54:39,589 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 00:54:39,629 INFO L225 Difference]: With dead ends: 707 [2019-11-07 00:54:39,630 INFO L226 Difference]: Without dead ends: 454 [2019-11-07 00:54:39,638 INFO L630 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 [2019-11-07 00:54:39,660 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 454 states. [2019-11-07 00:54:39,744 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 454 to 454. [2019-11-07 00:54:39,746 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 454 states. [2019-11-07 00:54:39,750 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 454 states to 454 states and 605 transitions. [2019-11-07 00:54:39,753 INFO L78 Accepts]: Start accepts. Automaton has 454 states and 605 transitions. Word has length 182 [2019-11-07 00:54:39,755 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 00:54:39,755 INFO L462 AbstractCegarLoop]: Abstraction has 454 states and 605 transitions. [2019-11-07 00:54:39,755 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-11-07 00:54:39,755 INFO L276 IsEmpty]: Start isEmpty. Operand 454 states and 605 transitions. [2019-11-07 00:54:39,761 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 184 [2019-11-07 00:54:39,762 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 00:54:39,762 INFO L410 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] [2019-11-07 00:54:39,762 INFO L410 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 00:54:39,763 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 00:54:39,763 INFO L82 PathProgramCache]: Analyzing trace with hash 34062624, now seen corresponding path program 1 times [2019-11-07 00:54:39,763 INFO L161 FreeRefinementEngine]: Executing refinement strategy TAIPAN [2019-11-07 00:54:39,763 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1477939810] [2019-11-07 00:54:39,763 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 00:54:39,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 00:54:39,958 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2019-11-07 00:54:39,958 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1477939810] [2019-11-07 00:54:39,959 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 00:54:39,959 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-07 00:54:39,959 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1192368034] [2019-11-07 00:54:39,961 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-07 00:54:39,962 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-11-07 00:54:39,962 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-07 00:54:39,962 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-07 00:54:39,963 INFO L87 Difference]: Start difference. First operand 454 states and 605 transitions. Second operand 3 states. [2019-11-07 00:54:40,063 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 00:54:40,064 INFO L93 Difference]: Finished difference Result 690 states and 904 transitions. [2019-11-07 00:54:40,064 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-07 00:54:40,064 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 183 [2019-11-07 00:54:40,065 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 00:54:40,069 INFO L225 Difference]: With dead ends: 690 [2019-11-07 00:54:40,069 INFO L226 Difference]: Without dead ends: 457 [2019-11-07 00:54:40,074 INFO L630 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 [2019-11-07 00:54:40,075 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 457 states. [2019-11-07 00:54:40,118 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 457 to 456. [2019-11-07 00:54:40,118 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 456 states. [2019-11-07 00:54:40,124 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 456 states to 456 states and 607 transitions. [2019-11-07 00:54:40,124 INFO L78 Accepts]: Start accepts. Automaton has 456 states and 607 transitions. Word has length 183 [2019-11-07 00:54:40,126 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 00:54:40,126 INFO L462 AbstractCegarLoop]: Abstraction has 456 states and 607 transitions. [2019-11-07 00:54:40,126 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-07 00:54:40,127 INFO L276 IsEmpty]: Start isEmpty. Operand 456 states and 607 transitions. [2019-11-07 00:54:40,131 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 190 [2019-11-07 00:54:40,132 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 00:54:40,132 INFO L410 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] [2019-11-07 00:54:40,132 INFO L410 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 00:54:40,132 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 00:54:40,133 INFO L82 PathProgramCache]: Analyzing trace with hash 2105837044, now seen corresponding path program 1 times [2019-11-07 00:54:40,133 INFO L161 FreeRefinementEngine]: Executing refinement strategy TAIPAN [2019-11-07 00:54:40,133 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1066604813] [2019-11-07 00:54:40,133 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 00:54:40,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 00:54:40,386 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2019-11-07 00:54:40,386 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1066604813] [2019-11-07 00:54:40,387 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 00:54:40,387 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-07 00:54:40,387 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1150898499] [2019-11-07 00:54:40,388 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-07 00:54:40,388 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-11-07 00:54:40,388 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-07 00:54:40,389 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-07 00:54:40,389 INFO L87 Difference]: Start difference. First operand 456 states and 607 transitions. Second operand 3 states. [2019-11-07 00:54:40,428 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 00:54:40,428 INFO L93 Difference]: Finished difference Result 886 states and 1209 transitions. [2019-11-07 00:54:40,429 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-07 00:54:40,429 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 189 [2019-11-07 00:54:40,430 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 00:54:40,435 INFO L225 Difference]: With dead ends: 886 [2019-11-07 00:54:40,435 INFO L226 Difference]: Without dead ends: 495 [2019-11-07 00:54:40,437 INFO L630 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 [2019-11-07 00:54:40,439 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 495 states. [2019-11-07 00:54:40,462 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 495 to 494. [2019-11-07 00:54:40,463 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 494 states. [2019-11-07 00:54:40,467 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 494 states to 494 states and 673 transitions. [2019-11-07 00:54:40,468 INFO L78 Accepts]: Start accepts. Automaton has 494 states and 673 transitions. Word has length 189 [2019-11-07 00:54:40,468 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 00:54:40,469 INFO L462 AbstractCegarLoop]: Abstraction has 494 states and 673 transitions. [2019-11-07 00:54:40,469 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-07 00:54:40,469 INFO L276 IsEmpty]: Start isEmpty. Operand 494 states and 673 transitions. [2019-11-07 00:54:40,479 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 191 [2019-11-07 00:54:40,480 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 00:54:40,480 INFO L410 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] [2019-11-07 00:54:40,481 INFO L410 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 00:54:40,481 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 00:54:40,481 INFO L82 PathProgramCache]: Analyzing trace with hash -89354053, now seen corresponding path program 1 times [2019-11-07 00:54:40,482 INFO L161 FreeRefinementEngine]: Executing refinement strategy TAIPAN [2019-11-07 00:54:40,482 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1360278086] [2019-11-07 00:54:40,482 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 00:54:40,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 00:54:41,060 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2019-11-07 00:54:41,060 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1360278086] [2019-11-07 00:54:41,060 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 00:54:41,061 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2019-11-07 00:54:41,061 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1381181876] [2019-11-07 00:54:41,061 INFO L442 AbstractCegarLoop]: Interpolant automaton has 19 states [2019-11-07 00:54:41,062 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-11-07 00:54:41,062 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2019-11-07 00:54:41,062 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=300, Unknown=0, NotChecked=0, Total=342 [2019-11-07 00:54:41,063 INFO L87 Difference]: Start difference. First operand 494 states and 673 transitions. Second operand 19 states. [2019-11-07 00:54:45,817 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 00:54:45,818 INFO L93 Difference]: Finished difference Result 1666 states and 2267 transitions. [2019-11-07 00:54:45,818 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2019-11-07 00:54:45,819 INFO L78 Accepts]: Start accepts. Automaton has 19 states. Word has length 190 [2019-11-07 00:54:45,820 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 00:54:45,831 INFO L225 Difference]: With dead ends: 1666 [2019-11-07 00:54:45,831 INFO L226 Difference]: Without dead ends: 1451 [2019-11-07 00:54:45,834 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 602 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=267, Invalid=2385, Unknown=0, NotChecked=0, Total=2652 [2019-11-07 00:54:45,836 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1451 states. [2019-11-07 00:54:45,947 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1451 to 1419. [2019-11-07 00:54:45,948 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1419 states. [2019-11-07 00:54:45,956 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1419 states to 1419 states and 1938 transitions. [2019-11-07 00:54:45,956 INFO L78 Accepts]: Start accepts. Automaton has 1419 states and 1938 transitions. Word has length 190 [2019-11-07 00:54:45,957 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 00:54:45,957 INFO L462 AbstractCegarLoop]: Abstraction has 1419 states and 1938 transitions. [2019-11-07 00:54:45,957 INFO L463 AbstractCegarLoop]: Interpolant automaton has 19 states. [2019-11-07 00:54:45,958 INFO L276 IsEmpty]: Start isEmpty. Operand 1419 states and 1938 transitions. [2019-11-07 00:54:45,963 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 192 [2019-11-07 00:54:45,964 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 00:54:45,964 INFO L410 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] [2019-11-07 00:54:45,964 INFO L410 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 00:54:45,965 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 00:54:45,965 INFO L82 PathProgramCache]: Analyzing trace with hash 2067450055, now seen corresponding path program 1 times [2019-11-07 00:54:45,965 INFO L161 FreeRefinementEngine]: Executing refinement strategy TAIPAN [2019-11-07 00:54:45,965 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1706976073] [2019-11-07 00:54:45,965 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 00:54:46,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 00:54:46,196 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2019-11-07 00:54:46,197 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1706976073] [2019-11-07 00:54:46,197 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 00:54:46,197 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2019-11-07 00:54:46,197 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [334001777] [2019-11-07 00:54:46,198 INFO L442 AbstractCegarLoop]: Interpolant automaton has 11 states [2019-11-07 00:54:46,198 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-11-07 00:54:46,199 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2019-11-07 00:54:46,199 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110 [2019-11-07 00:54:46,199 INFO L87 Difference]: Start difference. First operand 1419 states and 1938 transitions. Second operand 11 states. [2019-11-07 00:54:46,608 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 00:54:46,608 INFO L93 Difference]: Finished difference Result 2414 states and 3259 transitions. [2019-11-07 00:54:46,609 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2019-11-07 00:54:46,609 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 191 [2019-11-07 00:54:46,609 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 00:54:46,619 INFO L225 Difference]: With dead ends: 2414 [2019-11-07 00:54:46,619 INFO L226 Difference]: Without dead ends: 1484 [2019-11-07 00:54:46,622 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=59, Invalid=283, Unknown=0, NotChecked=0, Total=342 [2019-11-07 00:54:46,625 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1484 states. [2019-11-07 00:54:46,694 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1484 to 1477. [2019-11-07 00:54:46,695 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1477 states. [2019-11-07 00:54:46,702 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1477 states to 1477 states and 2031 transitions. [2019-11-07 00:54:46,703 INFO L78 Accepts]: Start accepts. Automaton has 1477 states and 2031 transitions. Word has length 191 [2019-11-07 00:54:46,704 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 00:54:46,704 INFO L462 AbstractCegarLoop]: Abstraction has 1477 states and 2031 transitions. [2019-11-07 00:54:46,704 INFO L463 AbstractCegarLoop]: Interpolant automaton has 11 states. [2019-11-07 00:54:46,704 INFO L276 IsEmpty]: Start isEmpty. Operand 1477 states and 2031 transitions. [2019-11-07 00:54:46,709 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 192 [2019-11-07 00:54:46,709 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 00:54:46,710 INFO L410 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] [2019-11-07 00:54:46,710 INFO L410 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 00:54:46,710 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 00:54:46,710 INFO L82 PathProgramCache]: Analyzing trace with hash -393480967, now seen corresponding path program 1 times [2019-11-07 00:54:46,711 INFO L161 FreeRefinementEngine]: Executing refinement strategy TAIPAN [2019-11-07 00:54:46,711 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [681043789] [2019-11-07 00:54:46,711 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 00:54:46,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 00:54:46,943 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2019-11-07 00:54:46,944 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [681043789] [2019-11-07 00:54:46,944 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 00:54:46,944 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-11-07 00:54:46,945 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1264510580] [2019-11-07 00:54:46,945 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-07 00:54:46,945 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-11-07 00:54:46,946 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-07 00:54:46,946 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-07 00:54:46,946 INFO L87 Difference]: Start difference. First operand 1477 states and 2031 transitions. Second operand 5 states. [2019-11-07 00:54:48,205 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 00:54:48,206 INFO L93 Difference]: Finished difference Result 3622 states and 4991 transitions. [2019-11-07 00:54:48,206 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-11-07 00:54:48,206 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 191 [2019-11-07 00:54:48,207 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 00:54:48,227 INFO L225 Difference]: With dead ends: 3622 [2019-11-07 00:54:48,227 INFO L226 Difference]: Without dead ends: 3145 [2019-11-07 00:54:48,231 INFO L630 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 [2019-11-07 00:54:48,237 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3145 states. [2019-11-07 00:54:48,436 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3145 to 3125. [2019-11-07 00:54:48,437 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3125 states. [2019-11-07 00:54:48,456 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3125 states to 3125 states and 4309 transitions. [2019-11-07 00:54:48,457 INFO L78 Accepts]: Start accepts. Automaton has 3125 states and 4309 transitions. Word has length 191 [2019-11-07 00:54:48,458 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 00:54:48,458 INFO L462 AbstractCegarLoop]: Abstraction has 3125 states and 4309 transitions. [2019-11-07 00:54:48,458 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-07 00:54:48,458 INFO L276 IsEmpty]: Start isEmpty. Operand 3125 states and 4309 transitions. [2019-11-07 00:54:48,468 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 192 [2019-11-07 00:54:48,469 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 00:54:48,469 INFO L410 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] [2019-11-07 00:54:48,469 INFO L410 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 00:54:48,470 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 00:54:48,470 INFO L82 PathProgramCache]: Analyzing trace with hash -373143592, now seen corresponding path program 1 times [2019-11-07 00:54:48,470 INFO L161 FreeRefinementEngine]: Executing refinement strategy TAIPAN [2019-11-07 00:54:48,470 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [793049178] [2019-11-07 00:54:48,470 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 00:54:48,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 00:54:48,815 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2019-11-07 00:54:48,815 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [793049178] [2019-11-07 00:54:48,815 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 00:54:48,815 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-11-07 00:54:48,816 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [858218218] [2019-11-07 00:54:48,816 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-11-07 00:54:48,817 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-11-07 00:54:48,817 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-11-07 00:54:48,817 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-11-07 00:54:48,818 INFO L87 Difference]: Start difference. First operand 3125 states and 4309 transitions. Second operand 7 states. [2019-11-07 00:54:50,966 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 00:54:50,966 INFO L93 Difference]: Finished difference Result 10144 states and 14343 transitions. [2019-11-07 00:54:50,967 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2019-11-07 00:54:50,967 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 191 [2019-11-07 00:54:50,968 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 00:54:51,021 INFO L225 Difference]: With dead ends: 10144 [2019-11-07 00:54:51,022 INFO L226 Difference]: Without dead ends: 7862 [2019-11-07 00:54:51,037 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=121, Unknown=0, NotChecked=0, Total=156 [2019-11-07 00:54:51,051 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7862 states. [2019-11-07 00:54:51,520 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7862 to 7822. [2019-11-07 00:54:51,520 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7822 states. [2019-11-07 00:54:51,564 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7822 states to 7822 states and 10819 transitions. [2019-11-07 00:54:51,566 INFO L78 Accepts]: Start accepts. Automaton has 7822 states and 10819 transitions. Word has length 191 [2019-11-07 00:54:51,567 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 00:54:51,568 INFO L462 AbstractCegarLoop]: Abstraction has 7822 states and 10819 transitions. [2019-11-07 00:54:51,568 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-11-07 00:54:51,568 INFO L276 IsEmpty]: Start isEmpty. Operand 7822 states and 10819 transitions. [2019-11-07 00:54:51,578 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 193 [2019-11-07 00:54:51,578 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 00:54:51,579 INFO L410 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] [2019-11-07 00:54:51,579 INFO L410 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 00:54:51,580 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 00:54:51,580 INFO L82 PathProgramCache]: Analyzing trace with hash 960811411, now seen corresponding path program 1 times [2019-11-07 00:54:51,580 INFO L161 FreeRefinementEngine]: Executing refinement strategy TAIPAN [2019-11-07 00:54:51,581 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [276028774] [2019-11-07 00:54:51,581 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 00:54:51,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 00:54:52,435 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2019-11-07 00:54:52,436 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [276028774] [2019-11-07 00:54:52,436 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 00:54:52,436 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2019-11-07 00:54:52,437 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [425970162] [2019-11-07 00:54:52,438 INFO L442 AbstractCegarLoop]: Interpolant automaton has 26 states [2019-11-07 00:54:52,438 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-11-07 00:54:52,438 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2019-11-07 00:54:52,439 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=601, Unknown=0, NotChecked=0, Total=650 [2019-11-07 00:54:52,439 INFO L87 Difference]: Start difference. First operand 7822 states and 10819 transitions. Second operand 26 states. [2019-11-07 00:54:53,649 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 00:54:53,649 INFO L93 Difference]: Finished difference Result 15767 states and 22449 transitions. [2019-11-07 00:54:53,650 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2019-11-07 00:54:53,650 INFO L78 Accepts]: Start accepts. Automaton has 26 states. Word has length 192 [2019-11-07 00:54:53,653 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 00:54:53,708 INFO L225 Difference]: With dead ends: 15767 [2019-11-07 00:54:53,708 INFO L226 Difference]: Without dead ends: 7467 [2019-11-07 00:54:53,744 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 55 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=93, Invalid=1239, Unknown=0, NotChecked=0, Total=1332 [2019-11-07 00:54:53,755 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7467 states. [2019-11-07 00:54:54,237 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7467 to 7197. [2019-11-07 00:54:54,238 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7197 states. [2019-11-07 00:54:54,264 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7197 states to 7197 states and 9976 transitions. [2019-11-07 00:54:54,266 INFO L78 Accepts]: Start accepts. Automaton has 7197 states and 9976 transitions. Word has length 192 [2019-11-07 00:54:54,267 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 00:54:54,267 INFO L462 AbstractCegarLoop]: Abstraction has 7197 states and 9976 transitions. [2019-11-07 00:54:54,267 INFO L463 AbstractCegarLoop]: Interpolant automaton has 26 states. [2019-11-07 00:54:54,267 INFO L276 IsEmpty]: Start isEmpty. Operand 7197 states and 9976 transitions. [2019-11-07 00:54:54,276 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 197 [2019-11-07 00:54:54,277 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 00:54:54,277 INFO L410 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] [2019-11-07 00:54:54,277 INFO L410 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 00:54:54,277 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 00:54:54,278 INFO L82 PathProgramCache]: Analyzing trace with hash 1419526608, now seen corresponding path program 1 times [2019-11-07 00:54:54,278 INFO L161 FreeRefinementEngine]: Executing refinement strategy TAIPAN [2019-11-07 00:54:54,278 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [792675394] [2019-11-07 00:54:54,278 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 00:54:54,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 00:54:54,473 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2019-11-07 00:54:54,473 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [792675394] [2019-11-07 00:54:54,475 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 00:54:54,475 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2019-11-07 00:54:54,475 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1393428696] [2019-11-07 00:54:54,476 INFO L442 AbstractCegarLoop]: Interpolant automaton has 10 states [2019-11-07 00:54:54,476 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-11-07 00:54:54,476 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2019-11-07 00:54:54,476 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2019-11-07 00:54:54,477 INFO L87 Difference]: Start difference. First operand 7197 states and 9976 transitions. Second operand 10 states. [2019-11-07 00:54:54,660 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 00:54:54,660 INFO L93 Difference]: Finished difference Result 7262 states and 10060 transitions. [2019-11-07 00:54:54,661 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2019-11-07 00:54:54,661 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 196 [2019-11-07 00:54:54,661 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 00:54:54,707 INFO L225 Difference]: With dead ends: 7262 [2019-11-07 00:54:54,707 INFO L226 Difference]: Without dead ends: 7187 [2019-11-07 00:54:54,714 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2019-11-07 00:54:54,723 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7187 states. [2019-11-07 00:54:55,031 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7187 to 7187. [2019-11-07 00:54:55,031 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7187 states. [2019-11-07 00:54:55,059 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7187 states to 7187 states and 9926 transitions. [2019-11-07 00:54:55,060 INFO L78 Accepts]: Start accepts. Automaton has 7187 states and 9926 transitions. Word has length 196 [2019-11-07 00:54:55,062 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 00:54:55,062 INFO L462 AbstractCegarLoop]: Abstraction has 7187 states and 9926 transitions. [2019-11-07 00:54:55,062 INFO L463 AbstractCegarLoop]: Interpolant automaton has 10 states. [2019-11-07 00:54:55,062 INFO L276 IsEmpty]: Start isEmpty. Operand 7187 states and 9926 transitions. [2019-11-07 00:54:55,073 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 202 [2019-11-07 00:54:55,073 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 00:54:55,074 INFO L410 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] [2019-11-07 00:54:55,074 INFO L410 AbstractCegarLoop]: === Iteration 10 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 00:54:55,074 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 00:54:55,075 INFO L82 PathProgramCache]: Analyzing trace with hash -106874396, now seen corresponding path program 1 times [2019-11-07 00:54:55,075 INFO L161 FreeRefinementEngine]: Executing refinement strategy TAIPAN [2019-11-07 00:54:55,075 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [71533834] [2019-11-07 00:54:55,075 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 00:54:55,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 00:54:55,773 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2019-11-07 00:54:55,773 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [71533834] [2019-11-07 00:54:55,774 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 00:54:55,774 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-11-07 00:54:55,775 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1418277374] [2019-11-07 00:54:55,775 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-07 00:54:55,775 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-11-07 00:54:55,776 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-07 00:54:55,776 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-07 00:54:55,776 INFO L87 Difference]: Start difference. First operand 7187 states and 9926 transitions. Second operand 5 states. [2019-11-07 00:54:55,975 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 00:54:55,975 INFO L93 Difference]: Finished difference Result 13263 states and 18050 transitions. [2019-11-07 00:54:55,976 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-07 00:54:55,976 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 201 [2019-11-07 00:54:55,976 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 00:54:56,013 INFO L225 Difference]: With dead ends: 13263 [2019-11-07 00:54:56,014 INFO L226 Difference]: Without dead ends: 7392 [2019-11-07 00:54:56,035 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-07 00:54:56,044 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7392 states. [2019-11-07 00:54:56,328 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7392 to 7291. [2019-11-07 00:54:56,328 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7291 states. [2019-11-07 00:54:56,355 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7291 states to 7291 states and 10066 transitions. [2019-11-07 00:54:56,358 INFO L78 Accepts]: Start accepts. Automaton has 7291 states and 10066 transitions. Word has length 201 [2019-11-07 00:54:56,358 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 00:54:56,358 INFO L462 AbstractCegarLoop]: Abstraction has 7291 states and 10066 transitions. [2019-11-07 00:54:56,358 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-07 00:54:56,359 INFO L276 IsEmpty]: Start isEmpty. Operand 7291 states and 10066 transitions. [2019-11-07 00:54:56,371 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 204 [2019-11-07 00:54:56,371 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 00:54:56,372 INFO L410 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-07 00:54:56,372 INFO L410 AbstractCegarLoop]: === Iteration 11 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 00:54:56,372 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 00:54:56,372 INFO L82 PathProgramCache]: Analyzing trace with hash -530905528, now seen corresponding path program 1 times [2019-11-07 00:54:56,373 INFO L161 FreeRefinementEngine]: Executing refinement strategy TAIPAN [2019-11-07 00:54:56,373 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1807287067] [2019-11-07 00:54:56,373 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 00:54:56,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 00:54:56,516 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2019-11-07 00:54:56,517 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1807287067] [2019-11-07 00:54:56,517 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 00:54:56,517 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-11-07 00:54:56,517 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1231145595] [2019-11-07 00:54:56,518 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-07 00:54:56,518 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-11-07 00:54:56,518 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-07 00:54:56,519 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-07 00:54:56,519 INFO L87 Difference]: Start difference. First operand 7291 states and 10066 transitions. Second operand 5 states. [2019-11-07 00:54:56,731 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 00:54:56,732 INFO L93 Difference]: Finished difference Result 9177 states and 12566 transitions. [2019-11-07 00:54:56,732 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-07 00:54:56,732 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 203 [2019-11-07 00:54:56,733 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 00:54:56,752 INFO L225 Difference]: With dead ends: 9177 [2019-11-07 00:54:56,752 INFO L226 Difference]: Without dead ends: 5691 [2019-11-07 00:54:56,763 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2019-11-07 00:54:56,770 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5691 states. [2019-11-07 00:54:56,967 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5691 to 5679. [2019-11-07 00:54:56,968 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5679 states. [2019-11-07 00:54:56,985 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5679 states to 5679 states and 7775 transitions. [2019-11-07 00:54:56,987 INFO L78 Accepts]: Start accepts. Automaton has 5679 states and 7775 transitions. Word has length 203 [2019-11-07 00:54:56,987 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 00:54:56,987 INFO L462 AbstractCegarLoop]: Abstraction has 5679 states and 7775 transitions. [2019-11-07 00:54:56,988 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-07 00:54:56,988 INFO L276 IsEmpty]: Start isEmpty. Operand 5679 states and 7775 transitions. [2019-11-07 00:54:56,996 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 202 [2019-11-07 00:54:56,996 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 00:54:56,996 INFO L410 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-07 00:54:56,997 INFO L410 AbstractCegarLoop]: === Iteration 12 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 00:54:56,997 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 00:54:56,997 INFO L82 PathProgramCache]: Analyzing trace with hash -927665010, now seen corresponding path program 1 times [2019-11-07 00:54:56,997 INFO L161 FreeRefinementEngine]: Executing refinement strategy TAIPAN [2019-11-07 00:54:56,997 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [379541872] [2019-11-07 00:54:56,997 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 00:54:57,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 00:54:57,149 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2019-11-07 00:54:57,149 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [379541872] [2019-11-07 00:54:57,150 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 00:54:57,150 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-11-07 00:54:57,150 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [468409164] [2019-11-07 00:54:57,151 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-11-07 00:54:57,151 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-11-07 00:54:57,151 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-11-07 00:54:57,151 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-11-07 00:54:57,151 INFO L87 Difference]: Start difference. First operand 5679 states and 7775 transitions. Second operand 6 states. [2019-11-07 00:54:57,877 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 00:54:57,878 INFO L93 Difference]: Finished difference Result 15992 states and 21689 transitions. [2019-11-07 00:54:57,878 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-11-07 00:54:57,878 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 201 [2019-11-07 00:54:57,879 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 00:54:57,926 INFO L225 Difference]: With dead ends: 15992 [2019-11-07 00:54:57,926 INFO L226 Difference]: Without dead ends: 11287 [2019-11-07 00:54:57,945 INFO L630 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 [2019-11-07 00:54:57,958 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11287 states. [2019-11-07 00:54:58,483 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11287 to 11125. [2019-11-07 00:54:58,483 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11125 states. [2019-11-07 00:54:58,516 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11125 states to 11125 states and 15225 transitions. [2019-11-07 00:54:58,518 INFO L78 Accepts]: Start accepts. Automaton has 11125 states and 15225 transitions. Word has length 201 [2019-11-07 00:54:58,519 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 00:54:58,519 INFO L462 AbstractCegarLoop]: Abstraction has 11125 states and 15225 transitions. [2019-11-07 00:54:58,519 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-11-07 00:54:58,519 INFO L276 IsEmpty]: Start isEmpty. Operand 11125 states and 15225 transitions. [2019-11-07 00:54:58,537 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 222 [2019-11-07 00:54:58,538 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 00:54:58,538 INFO L410 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-07 00:54:58,538 INFO L410 AbstractCegarLoop]: === Iteration 13 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 00:54:58,538 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 00:54:58,539 INFO L82 PathProgramCache]: Analyzing trace with hash -1787182647, now seen corresponding path program 1 times [2019-11-07 00:54:58,539 INFO L161 FreeRefinementEngine]: Executing refinement strategy TAIPAN [2019-11-07 00:54:58,539 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1384583200] [2019-11-07 00:54:58,539 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 00:54:58,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 00:54:58,708 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2019-11-07 00:54:58,709 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1384583200] [2019-11-07 00:54:58,709 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 00:54:58,709 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-11-07 00:54:58,709 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1430367776] [2019-11-07 00:54:58,710 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-11-07 00:54:58,710 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-11-07 00:54:58,711 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-11-07 00:54:58,711 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2019-11-07 00:54:58,711 INFO L87 Difference]: Start difference. First operand 11125 states and 15225 transitions. Second operand 8 states. [2019-11-07 00:55:00,294 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 00:55:00,295 INFO L93 Difference]: Finished difference Result 32906 states and 45382 transitions. [2019-11-07 00:55:00,295 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2019-11-07 00:55:00,296 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 221 [2019-11-07 00:55:00,296 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 00:55:00,412 INFO L225 Difference]: With dead ends: 32906 [2019-11-07 00:55:00,413 INFO L226 Difference]: Without dead ends: 23146 [2019-11-07 00:55:00,453 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=33, Invalid=123, Unknown=0, NotChecked=0, Total=156 [2019-11-07 00:55:00,481 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23146 states. [2019-11-07 00:55:01,492 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23146 to 22773. [2019-11-07 00:55:01,493 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22773 states. [2019-11-07 00:55:01,566 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22773 states to 22773 states and 31350 transitions. [2019-11-07 00:55:01,576 INFO L78 Accepts]: Start accepts. Automaton has 22773 states and 31350 transitions. Word has length 221 [2019-11-07 00:55:01,576 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 00:55:01,576 INFO L462 AbstractCegarLoop]: Abstraction has 22773 states and 31350 transitions. [2019-11-07 00:55:01,577 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-11-07 00:55:01,577 INFO L276 IsEmpty]: Start isEmpty. Operand 22773 states and 31350 transitions. [2019-11-07 00:55:01,607 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 222 [2019-11-07 00:55:01,607 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 00:55:01,608 INFO L410 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-07 00:55:01,608 INFO L410 AbstractCegarLoop]: === Iteration 14 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 00:55:01,608 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 00:55:01,609 INFO L82 PathProgramCache]: Analyzing trace with hash 880838603, now seen corresponding path program 1 times [2019-11-07 00:55:01,609 INFO L161 FreeRefinementEngine]: Executing refinement strategy TAIPAN [2019-11-07 00:55:01,609 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [893153026] [2019-11-07 00:55:01,609 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 00:55:01,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 00:55:01,927 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2019-11-07 00:55:01,928 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [893153026] [2019-11-07 00:55:01,928 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 00:55:01,928 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2019-11-07 00:55:01,929 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [603423031] [2019-11-07 00:55:01,929 INFO L442 AbstractCegarLoop]: Interpolant automaton has 15 states [2019-11-07 00:55:01,930 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-11-07 00:55:01,930 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2019-11-07 00:55:01,931 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=181, Unknown=0, NotChecked=0, Total=210 [2019-11-07 00:55:01,931 INFO L87 Difference]: Start difference. First operand 22773 states and 31350 transitions. Second operand 15 states.