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_product29.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-13a467a-m [2019-10-15 01:16:51,401 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-15 01:16:51,404 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-15 01:16:51,424 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-15 01:16:51,424 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-15 01:16:51,426 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-15 01:16:51,429 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-15 01:16:51,441 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-15 01:16:51,443 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-15 01:16:51,446 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-15 01:16:51,447 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-15 01:16:51,449 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-15 01:16:51,449 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-15 01:16:51,451 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-15 01:16:51,452 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-15 01:16:51,453 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-15 01:16:51,458 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-15 01:16:51,459 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-15 01:16:51,460 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-15 01:16:51,462 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-15 01:16:51,464 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-15 01:16:51,465 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-15 01:16:51,466 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-15 01:16:51,466 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-15 01:16:51,468 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-15 01:16:51,469 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-15 01:16:51,469 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-15 01:16:51,470 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-15 01:16:51,470 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-15 01:16:51,471 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-15 01:16:51,471 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-15 01:16:51,472 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-15 01:16:51,473 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-15 01:16:51,474 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-15 01:16:51,475 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-15 01:16:51,475 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-15 01:16:51,475 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-15 01:16:51,476 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-15 01:16:51,476 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-15 01:16:51,477 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-15 01:16:51,477 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-15 01:16:51,478 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2019-10-15 01:16:51,497 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-15 01:16:51,497 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-15 01:16:51,499 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-15 01:16:51,500 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-15 01:16:51,500 INFO L138 SettingsManager]: * Use SBE=true [2019-10-15 01:16:51,500 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-15 01:16:51,500 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-15 01:16:51,501 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-15 01:16:51,501 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-15 01:16:51,501 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-15 01:16:51,502 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-15 01:16:51,502 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-15 01:16:51,502 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-15 01:16:51,502 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-15 01:16:51,503 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-15 01:16:51,503 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-15 01:16:51,503 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-15 01:16:51,503 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-15 01:16:51,503 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-15 01:16:51,504 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-15 01:16:51,504 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-15 01:16:51,504 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-15 01:16:51,505 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-15 01:16:51,505 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-15 01:16:51,505 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-15 01:16:51,506 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-15 01:16:51,506 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-15 01:16:51,506 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-15 01:16:51,506 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2: Abstract domain -> IntervalDomain Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> TAIPAN Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Abstract interpretation Mode -> USE_PREDICATES [2019-10-15 01:16:51,783 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-15 01:16:51,797 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-15 01:16:51,800 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-15 01:16:51,802 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-15 01:16:51,802 INFO L275 PluginConnector]: CDTParser initialized [2019-10-15 01:16:51,803 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/email_spec7_product29.cil.c [2019-10-15 01:16:51,862 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3c27859d3/5a8cc70c382348d5980517b62b354619/FLAG29111ee8e [2019-10-15 01:16:52,507 INFO L306 CDTParser]: Found 1 translation units. [2019-10-15 01:16:52,510 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/email_spec7_product29.cil.c [2019-10-15 01:16:52,542 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3c27859d3/5a8cc70c382348d5980517b62b354619/FLAG29111ee8e [2019-10-15 01:16:52,706 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3c27859d3/5a8cc70c382348d5980517b62b354619 [2019-10-15 01:16:52,716 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-15 01:16:52,718 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-15 01:16:52,718 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-15 01:16:52,718 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-15 01:16:52,722 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-15 01:16:52,723 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 01:16:52" (1/1) ... [2019-10-15 01:16:52,726 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@ef0aef and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:16:52, skipping insertion in model container [2019-10-15 01:16:52,726 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 01:16:52" (1/1) ... [2019-10-15 01:16:52,734 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-15 01:16:52,811 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-15 01:16:53,574 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-15 01:16:53,591 INFO L188 MainTranslator]: Completed pre-run [2019-10-15 01:16:53,691 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-15 01:16:53,787 INFO L192 MainTranslator]: Completed translation [2019-10-15 01:16:53,787 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:16:53 WrapperNode [2019-10-15 01:16:53,788 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-15 01:16:53,788 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-15 01:16:53,789 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-15 01:16:53,789 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-15 01:16:53,802 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:16:53" (1/1) ... [2019-10-15 01:16:53,803 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:16:53" (1/1) ... [2019-10-15 01:16:53,835 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:16:53" (1/1) ... [2019-10-15 01:16:53,835 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:16:53" (1/1) ... [2019-10-15 01:16:53,905 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:16:53" (1/1) ... [2019-10-15 01:16:53,949 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:16:53" (1/1) ... [2019-10-15 01:16:53,961 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:16:53" (1/1) ... [2019-10-15 01:16:53,978 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-15 01:16:53,979 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-15 01:16:53,979 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-15 01:16:53,980 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-15 01:16:53,981 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:16:53" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-15 01:16:54,051 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-15 01:16:54,052 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-15 01:16:54,052 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-10-15 01:16:54,053 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob__wrappee__Base [2019-10-15 01:16:54,053 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_bob [2019-10-15 01:16:54,053 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh__wrappee__Base [2019-10-15 01:16:54,053 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rjh [2019-10-15 01:16:54,053 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck__wrappee__Base [2019-10-15 01:16:54,054 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_chuck [2019-10-15 01:16:54,054 INFO L138 BoogieDeclarations]: Found implementation of procedure bobToRjh [2019-10-15 01:16:54,054 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhToBob [2019-10-15 01:16:54,054 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-10-15 01:16:54,054 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-15 01:16:54,055 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAdd [2019-10-15 01:16:54,055 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAdd [2019-10-15 01:16:54,055 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyAddChuck [2019-10-15 01:16:54,055 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyAddChuck [2019-10-15 01:16:54,056 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2019-10-15 01:16:54,056 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAddRjh [2019-10-15 01:16:54,056 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhDeletePrivateKey [2019-10-15 01:16:54,056 INFO L138 BoogieDeclarations]: Found implementation of procedure bobKeyChange [2019-10-15 01:16:54,057 INFO L138 BoogieDeclarations]: Found implementation of procedure rjhKeyChange [2019-10-15 01:16:54,057 INFO L138 BoogieDeclarations]: Found implementation of procedure bobSetAddressBook [2019-10-15 01:16:54,057 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-10-15 01:16:54,057 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-10-15 01:16:54,057 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-10-15 01:16:54,058 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-10-15 01:16:54,058 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-10-15 01:16:54,058 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-10-15 01:16:54,058 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-10-15 01:16:54,058 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-10-15 01:16:54,058 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__EncryptVerify_spec__1 [2019-10-15 01:16:54,059 INFO L138 BoogieDeclarations]: Found implementation of procedure mail [2019-10-15 01:16:54,059 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__Keys [2019-10-15 01:16:54,059 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__Encrypt [2019-10-15 01:16:54,059 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing__wrappee__AddressBook [2019-10-15 01:16:54,059 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2019-10-15 01:16:54,059 INFO L138 BoogieDeclarations]: Found implementation of procedure deliver [2019-10-15 01:16:54,060 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Sign [2019-10-15 01:16:54,060 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming__wrappee__Verify [2019-10-15 01:16:54,060 INFO L138 BoogieDeclarations]: Found implementation of procedure incoming [2019-10-15 01:16:54,060 INFO L138 BoogieDeclarations]: Found implementation of procedure createClient [2019-10-15 01:16:54,060 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2019-10-15 01:16:54,060 INFO L138 BoogieDeclarations]: Found implementation of procedure queue [2019-10-15 01:16:54,061 INFO L138 BoogieDeclarations]: Found implementation of procedure is_queue_empty [2019-10-15 01:16:54,061 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_client [2019-10-15 01:16:54,061 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queued_email [2019-10-15 01:16:54,061 INFO L138 BoogieDeclarations]: Found implementation of procedure isKeyPairValid [2019-10-15 01:16:54,061 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2019-10-15 01:16:54,061 INFO L138 BoogieDeclarations]: Found implementation of procedure sendToAddressBook [2019-10-15 01:16:54,062 INFO L138 BoogieDeclarations]: Found implementation of procedure sign [2019-10-15 01:16:54,062 INFO L138 BoogieDeclarations]: Found implementation of procedure verify [2019-10-15 01:16:54,062 INFO L138 BoogieDeclarations]: Found implementation of procedure initClient [2019-10-15 01:16:54,062 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientName [2019-10-15 01:16:54,062 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientName [2019-10-15 01:16:54,062 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientOutbuffer [2019-10-15 01:16:54,062 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientOutbuffer [2019-10-15 01:16:54,063 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookSize [2019-10-15 01:16:54,063 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookSize [2019-10-15 01:16:54,063 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientAddressBookEntry [2019-10-15 01:16:54,063 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAlias [2019-10-15 01:16:54,063 INFO L138 BoogieDeclarations]: Found implementation of procedure findClientAddressBookAlias [2019-10-15 01:16:54,063 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAlias [2019-10-15 01:16:54,063 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAddressBookAddress [2019-10-15 01:16:54,064 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAddressBookAddress [2019-10-15 01:16:54,064 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientAutoResponse [2019-10-15 01:16:54,064 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientAutoResponse [2019-10-15 01:16:54,064 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientPrivateKey [2019-10-15 01:16:54,064 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2019-10-15 01:16:54,064 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringSize [2019-10-15 01:16:54,065 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringSize [2019-10-15 01:16:54,065 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2019-10-15 01:16:54,065 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringUser [2019-10-15 01:16:54,065 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2019-10-15 01:16:54,065 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientKeyringPublicKey [2019-10-15 01:16:54,065 INFO L138 BoogieDeclarations]: Found implementation of procedure findPublicKey [2019-10-15 01:16:54,065 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2019-10-15 01:16:54,066 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientForwardReceiver [2019-10-15 01:16:54,066 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientForwardReceiver [2019-10-15 01:16:54,066 INFO L138 BoogieDeclarations]: Found implementation of procedure getClientId [2019-10-15 01:16:54,066 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2019-10-15 01:16:54,066 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__Keys [2019-10-15 01:16:54,066 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__AddressBook [2019-10-15 01:16:54,067 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail__wrappee__Sign [2019-10-15 01:16:54,067 INFO L138 BoogieDeclarations]: Found implementation of procedure printMail [2019-10-15 01:16:54,067 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable__wrappee__Keys [2019-10-15 01:16:54,067 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2019-10-15 01:16:54,067 INFO L138 BoogieDeclarations]: Found implementation of procedure cloneEmail [2019-10-15 01:16:54,067 INFO L138 BoogieDeclarations]: Found implementation of procedure createEmail [2019-10-15 01:16:54,068 INFO L138 BoogieDeclarations]: Found implementation of procedure prompt [2019-10-15 01:16:54,068 INFO L138 BoogieDeclarations]: Found implementation of procedure initEmail [2019-10-15 01:16:54,068 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailId [2019-10-15 01:16:54,068 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailId [2019-10-15 01:16:54,068 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2019-10-15 01:16:54,068 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2019-10-15 01:16:54,068 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2019-10-15 01:16:54,069 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2019-10-15 01:16:54,069 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSubject [2019-10-15 01:16:54,069 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSubject [2019-10-15 01:16:54,069 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailBody [2019-10-15 01:16:54,069 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailBody [2019-10-15 01:16:54,069 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2019-10-15 01:16:54,070 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2019-10-15 01:16:54,070 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2019-10-15 01:16:54,070 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2019-10-15 01:16:54,070 INFO L138 BoogieDeclarations]: Found implementation of procedure isSigned [2019-10-15 01:16:54,070 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSigned [2019-10-15 01:16:54,070 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailSignKey [2019-10-15 01:16:54,070 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailSignKey [2019-10-15 01:16:54,071 INFO L138 BoogieDeclarations]: Found implementation of procedure isVerified [2019-10-15 01:16:54,071 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsSignatureVerified [2019-10-15 01:16:54,071 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-10-15 01:16:54,071 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-10-15 01:16:54,071 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-10-15 01:16:54,071 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-10-15 01:16:54,072 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-15 01:16:54,072 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-15 01:16:54,072 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-10-15 01:16:54,072 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2019-10-15 01:16:54,072 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookSize [2019-10-15 01:16:54,072 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAlias [2019-10-15 01:16:54,072 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAddressBookAddress [2019-10-15 01:16:54,073 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2019-10-15 01:16:54,073 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2019-10-15 01:16:54,073 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringUser [2019-10-15 01:16:54,073 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2019-10-15 01:16:54,073 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringPublicKey [2019-10-15 01:16:54,073 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2019-10-15 01:16:54,074 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2019-10-15 01:16:54,074 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-10-15 01:16:54,074 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-10-15 01:16:54,074 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-10-15 01:16:54,074 INFO L130 BoogieDeclarations]: Found specification of procedure is_queue_empty [2019-10-15 01:16:54,074 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_client [2019-10-15 01:16:54,075 INFO L130 BoogieDeclarations]: Found specification of procedure get_queued_email [2019-10-15 01:16:54,075 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2019-10-15 01:16:54,075 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2019-10-15 01:16:54,075 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2019-10-15 01:16:54,075 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob [2019-10-15 01:16:54,075 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh [2019-10-15 01:16:54,076 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck [2019-10-15 01:16:54,076 INFO L130 BoogieDeclarations]: Found specification of procedure bobToRjh [2019-10-15 01:16:54,076 INFO L130 BoogieDeclarations]: Found specification of procedure rjhToBob [2019-10-15 01:16:54,076 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-10-15 01:16:54,076 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-10-15 01:16:54,076 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-15 01:16:54,076 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAdd [2019-10-15 01:16:54,077 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyAddChuck [2019-10-15 01:16:54,077 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAdd [2019-10-15 01:16:54,077 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyAddChuck [2019-10-15 01:16:54,077 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2019-10-15 01:16:54,077 INFO L130 BoogieDeclarations]: Found specification of procedure bobKeyChange [2019-10-15 01:16:54,077 INFO L130 BoogieDeclarations]: Found specification of procedure rjhKeyChange [2019-10-15 01:16:54,078 INFO L130 BoogieDeclarations]: Found specification of procedure rjhDeletePrivateKey [2019-10-15 01:16:54,078 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAddRjh [2019-10-15 01:16:54,078 INFO L130 BoogieDeclarations]: Found specification of procedure bobSetAddressBook [2019-10-15 01:16:54,078 INFO L130 BoogieDeclarations]: Found specification of procedure setup_bob__wrappee__Base [2019-10-15 01:16:54,078 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rjh__wrappee__Base [2019-10-15 01:16:54,078 INFO L130 BoogieDeclarations]: Found specification of procedure setup_chuck__wrappee__Base [2019-10-15 01:16:54,078 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-15 01:16:54,078 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-10-15 01:16:54,079 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-10-15 01:16:54,079 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-15 01:16:54,079 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-10-15 01:16:54,079 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-15 01:16:54,079 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-15 01:16:54,079 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-15 01:16:54,079 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-15 01:16:54,080 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-10-15 01:16:54,080 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-15 01:16:54,080 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-10-15 01:16:54,080 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-10-15 01:16:54,080 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-15 01:16:54,080 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-10-15 01:16:54,080 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-10-15 01:16:54,081 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-10-15 01:16:54,081 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-10-15 01:16:54,081 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2019-10-15 01:16:54,081 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__EncryptVerify_spec__1 [2019-10-15 01:16:54,081 INFO L130 BoogieDeclarations]: Found specification of procedure initClient [2019-10-15 01:16:54,081 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookSize [2019-10-15 01:16:54,081 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAddress [2019-10-15 01:16:54,081 INFO L130 BoogieDeclarations]: Found specification of procedure getClientPrivateKey [2019-10-15 01:16:54,082 INFO L130 BoogieDeclarations]: Found specification of procedure getClientId [2019-10-15 01:16:54,082 INFO L130 BoogieDeclarations]: Found specification of procedure findPublicKey [2019-10-15 01:16:54,082 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2019-10-15 01:16:54,082 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2019-10-15 01:16:54,082 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2019-10-15 01:16:54,082 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2019-10-15 01:16:54,082 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2019-10-15 01:16:54,083 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2019-10-15 01:16:54,083 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2019-10-15 01:16:54,083 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2019-10-15 01:16:54,083 INFO L130 BoogieDeclarations]: Found specification of procedure isSigned [2019-10-15 01:16:54,083 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSigned [2019-10-15 01:16:54,083 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSignKey [2019-10-15 01:16:54,083 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSignKey [2019-10-15 01:16:54,084 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsSignatureVerified [2019-10-15 01:16:54,084 INFO L130 BoogieDeclarations]: Found specification of procedure createEmail [2019-10-15 01:16:54,084 INFO L130 BoogieDeclarations]: Found specification of procedure queue [2019-10-15 01:16:54,084 INFO L130 BoogieDeclarations]: Found specification of procedure mail [2019-10-15 01:16:54,084 INFO L130 BoogieDeclarations]: Found specification of procedure deliver [2019-10-15 01:16:54,084 INFO L130 BoogieDeclarations]: Found specification of procedure incoming [2019-10-15 01:16:54,084 INFO L130 BoogieDeclarations]: Found specification of procedure createClient [2019-10-15 01:16:54,085 INFO L130 BoogieDeclarations]: Found specification of procedure isKeyPairValid [2019-10-15 01:16:54,085 INFO L130 BoogieDeclarations]: Found specification of procedure sendToAddressBook [2019-10-15 01:16:54,085 INFO L130 BoogieDeclarations]: Found specification of procedure sign [2019-10-15 01:16:54,085 INFO L130 BoogieDeclarations]: Found specification of procedure verify [2019-10-15 01:16:54,085 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__Keys [2019-10-15 01:16:54,085 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__Encrypt [2019-10-15 01:16:54,085 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing__wrappee__AddressBook [2019-10-15 01:16:54,086 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Sign [2019-10-15 01:16:54,086 INFO L130 BoogieDeclarations]: Found specification of procedure incoming__wrappee__Verify [2019-10-15 01:16:54,086 INFO L130 BoogieDeclarations]: Found specification of procedure getClientName [2019-10-15 01:16:54,086 INFO L130 BoogieDeclarations]: Found specification of procedure setClientName [2019-10-15 01:16:54,086 INFO L130 BoogieDeclarations]: Found specification of procedure getClientOutbuffer [2019-10-15 01:16:54,086 INFO L130 BoogieDeclarations]: Found specification of procedure setClientOutbuffer [2019-10-15 01:16:54,086 INFO L130 BoogieDeclarations]: Found specification of procedure createClientAddressBookEntry [2019-10-15 01:16:54,087 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAddressBookAlias [2019-10-15 01:16:54,087 INFO L130 BoogieDeclarations]: Found specification of procedure getClientAutoResponse [2019-10-15 01:16:54,087 INFO L130 BoogieDeclarations]: Found specification of procedure setClientAutoResponse [2019-10-15 01:16:54,087 INFO L130 BoogieDeclarations]: Found specification of procedure getClientKeyringSize [2019-10-15 01:16:54,087 INFO L130 BoogieDeclarations]: Found specification of procedure getClientForwardReceiver [2019-10-15 01:16:54,088 INFO L130 BoogieDeclarations]: Found specification of procedure setClientForwardReceiver [2019-10-15 01:16:54,088 INFO L130 BoogieDeclarations]: Found specification of procedure findClientAddressBookAlias [2019-10-15 01:16:54,088 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringSize [2019-10-15 01:16:54,088 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailId [2019-10-15 01:16:54,088 INFO L130 BoogieDeclarations]: Found specification of procedure isVerified [2019-10-15 01:16:54,088 INFO L130 BoogieDeclarations]: Found specification of procedure printMail [2019-10-15 01:16:54,089 INFO L130 BoogieDeclarations]: Found specification of procedure cloneEmail [2019-10-15 01:16:54,089 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__Keys [2019-10-15 01:16:54,089 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__AddressBook [2019-10-15 01:16:54,089 INFO L130 BoogieDeclarations]: Found specification of procedure printMail__wrappee__Sign [2019-10-15 01:16:54,089 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable__wrappee__Keys [2019-10-15 01:16:54,089 INFO L130 BoogieDeclarations]: Found specification of procedure prompt [2019-10-15 01:16:54,089 INFO L130 BoogieDeclarations]: Found specification of procedure initEmail [2019-10-15 01:16:54,090 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailId [2019-10-15 01:16:54,090 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailSubject [2019-10-15 01:16:54,090 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailSubject [2019-10-15 01:16:54,090 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailBody [2019-10-15 01:16:54,090 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailBody [2019-10-15 01:16:54,090 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-10-15 01:16:54,091 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-15 01:16:54,091 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-15 01:16:54,091 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-15 01:16:56,374 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-15 01:16:56,374 INFO L284 CfgBuilder]: Removed 4 assume(true) statements. [2019-10-15 01:16:56,376 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 01:16:56 BoogieIcfgContainer [2019-10-15 01:16:56,376 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-15 01:16:56,377 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-15 01:16:56,378 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-15 01:16:56,381 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-15 01:16:56,381 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.10 01:16:52" (1/3) ... [2019-10-15 01:16:56,382 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4a0608d5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 01:16:56, skipping insertion in model container [2019-10-15 01:16:56,382 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:16:53" (2/3) ... [2019-10-15 01:16:56,383 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4a0608d5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 01:16:56, skipping insertion in model container [2019-10-15 01:16:56,383 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 01:16:56" (3/3) ... [2019-10-15 01:16:56,385 INFO L109 eAbstractionObserver]: Analyzing ICFG email_spec7_product29.cil.c [2019-10-15 01:16:56,395 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-15 01:16:56,405 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-15 01:16:56,418 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-15 01:16:56,451 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-15 01:16:56,452 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-15 01:16:56,452 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-15 01:16:56,452 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-15 01:16:56,452 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-15 01:16:56,452 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-15 01:16:56,452 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-15 01:16:56,453 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-15 01:16:56,485 INFO L276 IsEmpty]: Start isEmpty. Operand 598 states. [2019-10-15 01:16:56,508 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 192 [2019-10-15 01:16:56,509 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:16:56,510 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 01:16:56,512 INFO L410 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:16:56,518 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:16:56,518 INFO L82 PathProgramCache]: Analyzing trace with hash 2048915059, now seen corresponding path program 1 times [2019-10-15 01:16:56,530 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:16:56,530 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1147535156] [2019-10-15 01:16:56,531 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:16:56,531 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:16:56,531 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:16:56,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:16:57,278 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2019-10-15 01:16:57,279 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1147535156] [2019-10-15 01:16:57,280 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:16:57,280 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-10-15 01:16:57,281 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1459430983] [2019-10-15 01:16:57,287 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-15 01:16:57,289 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:16:57,304 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-15 01:16:57,305 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-15 01:16:57,307 INFO L87 Difference]: Start difference. First operand 598 states. Second operand 2 states. [2019-10-15 01:16:57,403 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:16:57,404 INFO L93 Difference]: Finished difference Result 837 states and 1144 transitions. [2019-10-15 01:16:57,404 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-15 01:16:57,406 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 191 [2019-10-15 01:16:57,407 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:16:57,440 INFO L225 Difference]: With dead ends: 837 [2019-10-15 01:16:57,441 INFO L226 Difference]: Without dead ends: 541 [2019-10-15 01:16:57,452 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-15 01:16:57,474 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 541 states. [2019-10-15 01:16:57,566 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 541 to 541. [2019-10-15 01:16:57,570 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 541 states. [2019-10-15 01:16:57,577 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 541 states to 541 states and 742 transitions. [2019-10-15 01:16:57,580 INFO L78 Accepts]: Start accepts. Automaton has 541 states and 742 transitions. Word has length 191 [2019-10-15 01:16:57,584 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:16:57,584 INFO L462 AbstractCegarLoop]: Abstraction has 541 states and 742 transitions. [2019-10-15 01:16:57,584 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-15 01:16:57,584 INFO L276 IsEmpty]: Start isEmpty. Operand 541 states and 742 transitions. [2019-10-15 01:16:57,593 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 193 [2019-10-15 01:16:57,593 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:16:57,594 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 01:16:57,597 INFO L410 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:16:57,598 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:16:57,598 INFO L82 PathProgramCache]: Analyzing trace with hash -1030093926, now seen corresponding path program 1 times [2019-10-15 01:16:57,598 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:16:57,599 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [35978508] [2019-10-15 01:16:57,599 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:16:57,600 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:16:57,600 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:16:57,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:16:57,888 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2019-10-15 01:16:57,888 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [35978508] [2019-10-15 01:16:57,889 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:16:57,889 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-15 01:16:57,889 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [770680895] [2019-10-15 01:16:57,891 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-15 01:16:57,892 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:16:57,892 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-15 01:16:57,892 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 01:16:57,893 INFO L87 Difference]: Start difference. First operand 541 states and 742 transitions. Second operand 3 states. [2019-10-15 01:16:57,972 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:16:57,972 INFO L93 Difference]: Finished difference Result 820 states and 1106 transitions. [2019-10-15 01:16:57,973 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-15 01:16:57,973 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 192 [2019-10-15 01:16:57,974 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:16:57,979 INFO L225 Difference]: With dead ends: 820 [2019-10-15 01:16:57,979 INFO L226 Difference]: Without dead ends: 544 [2019-10-15 01:16:57,981 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 01:16:57,982 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 544 states. [2019-10-15 01:16:58,028 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 544 to 543. [2019-10-15 01:16:58,028 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 543 states. [2019-10-15 01:16:58,038 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 543 states to 543 states and 744 transitions. [2019-10-15 01:16:58,039 INFO L78 Accepts]: Start accepts. Automaton has 543 states and 744 transitions. Word has length 192 [2019-10-15 01:16:58,039 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:16:58,039 INFO L462 AbstractCegarLoop]: Abstraction has 543 states and 744 transitions. [2019-10-15 01:16:58,040 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-15 01:16:58,040 INFO L276 IsEmpty]: Start isEmpty. Operand 543 states and 744 transitions. [2019-10-15 01:16:58,048 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 199 [2019-10-15 01:16:58,052 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:16:58,052 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 01:16:58,053 INFO L410 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:16:58,053 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:16:58,053 INFO L82 PathProgramCache]: Analyzing trace with hash -369073018, now seen corresponding path program 1 times [2019-10-15 01:16:58,054 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:16:58,054 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2037754748] [2019-10-15 01:16:58,054 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:16:58,054 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:16:58,054 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:16:58,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:16:58,255 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2019-10-15 01:16:58,256 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2037754748] [2019-10-15 01:16:58,256 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:16:58,256 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-15 01:16:58,257 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1609615650] [2019-10-15 01:16:58,258 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-15 01:16:58,261 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:16:58,261 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-15 01:16:58,261 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 01:16:58,262 INFO L87 Difference]: Start difference. First operand 543 states and 744 transitions. Second operand 3 states. [2019-10-15 01:16:58,316 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:16:58,317 INFO L93 Difference]: Finished difference Result 1062 states and 1486 transitions. [2019-10-15 01:16:58,317 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-15 01:16:58,317 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 198 [2019-10-15 01:16:58,318 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:16:58,322 INFO L225 Difference]: With dead ends: 1062 [2019-10-15 01:16:58,322 INFO L226 Difference]: Without dead ends: 584 [2019-10-15 01:16:58,324 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 01:16:58,326 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 584 states. [2019-10-15 01:16:58,345 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 584 to 583. [2019-10-15 01:16:58,346 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 583 states. [2019-10-15 01:16:58,349 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 583 states to 583 states and 813 transitions. [2019-10-15 01:16:58,350 INFO L78 Accepts]: Start accepts. Automaton has 583 states and 813 transitions. Word has length 198 [2019-10-15 01:16:58,350 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:16:58,350 INFO L462 AbstractCegarLoop]: Abstraction has 583 states and 813 transitions. [2019-10-15 01:16:58,351 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-15 01:16:58,351 INFO L276 IsEmpty]: Start isEmpty. Operand 583 states and 813 transitions. [2019-10-15 01:16:58,355 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 200 [2019-10-15 01:16:58,355 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:16:58,355 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 01:16:58,356 INFO L410 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:16:58,356 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:16:58,356 INFO L82 PathProgramCache]: Analyzing trace with hash -436885539, now seen corresponding path program 1 times [2019-10-15 01:16:58,356 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:16:58,356 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1860718649] [2019-10-15 01:16:58,357 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:16:58,357 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:16:58,357 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:16:58,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:16:58,996 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2019-10-15 01:16:58,999 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1860718649] [2019-10-15 01:16:58,999 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:16:59,000 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2019-10-15 01:16:59,000 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1080350565] [2019-10-15 01:16:59,001 INFO L442 AbstractCegarLoop]: Interpolant automaton has 19 states [2019-10-15 01:16:59,002 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:16:59,002 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2019-10-15 01:16:59,003 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=300, Unknown=0, NotChecked=0, Total=342 [2019-10-15 01:16:59,003 INFO L87 Difference]: Start difference. First operand 583 states and 813 transitions. Second operand 19 states. [2019-10-15 01:17:04,289 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:17:04,289 INFO L93 Difference]: Finished difference Result 1984 states and 2786 transitions. [2019-10-15 01:17:04,290 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2019-10-15 01:17:04,290 INFO L78 Accepts]: Start accepts. Automaton has 19 states. Word has length 199 [2019-10-15 01:17:04,291 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:17:04,315 INFO L225 Difference]: With dead ends: 1984 [2019-10-15 01:17:04,316 INFO L226 Difference]: Without dead ends: 1721 [2019-10-15 01:17:04,320 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 602 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=267, Invalid=2385, Unknown=0, NotChecked=0, Total=2652 [2019-10-15 01:17:04,325 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1721 states. [2019-10-15 01:17:04,440 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1721 to 1689. [2019-10-15 01:17:04,440 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1689 states. [2019-10-15 01:17:04,453 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1689 states to 1689 states and 2374 transitions. [2019-10-15 01:17:04,455 INFO L78 Accepts]: Start accepts. Automaton has 1689 states and 2374 transitions. Word has length 199 [2019-10-15 01:17:04,457 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:17:04,457 INFO L462 AbstractCegarLoop]: Abstraction has 1689 states and 2374 transitions. [2019-10-15 01:17:04,457 INFO L463 AbstractCegarLoop]: Interpolant automaton has 19 states. [2019-10-15 01:17:04,457 INFO L276 IsEmpty]: Start isEmpty. Operand 1689 states and 2374 transitions. [2019-10-15 01:17:04,464 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 203 [2019-10-15 01:17:04,464 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:17:04,464 INFO L380 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] [2019-10-15 01:17:04,465 INFO L410 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:17:04,465 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:17:04,465 INFO L82 PathProgramCache]: Analyzing trace with hash 175793894, now seen corresponding path program 1 times [2019-10-15 01:17:04,465 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:17:04,466 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1117601880] [2019-10-15 01:17:04,466 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:17:04,467 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:17:04,467 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:17:04,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:17:04,665 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2019-10-15 01:17:04,666 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1117601880] [2019-10-15 01:17:04,666 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:17:04,666 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-10-15 01:17:04,667 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [860016661] [2019-10-15 01:17:04,668 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-15 01:17:04,669 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:17:04,669 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-15 01:17:04,670 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-10-15 01:17:04,670 INFO L87 Difference]: Start difference. First operand 1689 states and 2374 transitions. Second operand 5 states. [2019-10-15 01:17:04,766 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:17:04,766 INFO L93 Difference]: Finished difference Result 2524 states and 3490 transitions. [2019-10-15 01:17:04,767 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-10-15 01:17:04,767 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 202 [2019-10-15 01:17:04,770 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:17:04,780 INFO L225 Difference]: With dead ends: 2524 [2019-10-15 01:17:04,780 INFO L226 Difference]: Without dead ends: 1407 [2019-10-15 01:17:04,786 INFO L600 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 [2019-10-15 01:17:04,790 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1407 states. [2019-10-15 01:17:04,855 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1407 to 1407. [2019-10-15 01:17:04,855 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1407 states. [2019-10-15 01:17:04,864 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1407 states to 1407 states and 1987 transitions. [2019-10-15 01:17:04,866 INFO L78 Accepts]: Start accepts. Automaton has 1407 states and 1987 transitions. Word has length 202 [2019-10-15 01:17:04,868 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:17:04,868 INFO L462 AbstractCegarLoop]: Abstraction has 1407 states and 1987 transitions. [2019-10-15 01:17:04,868 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-15 01:17:04,868 INFO L276 IsEmpty]: Start isEmpty. Operand 1407 states and 1987 transitions. [2019-10-15 01:17:04,877 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 201 [2019-10-15 01:17:04,877 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:17:04,877 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 01:17:04,878 INFO L410 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:17:04,878 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:17:04,878 INFO L82 PathProgramCache]: Analyzing trace with hash 603543550, now seen corresponding path program 1 times [2019-10-15 01:17:04,878 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:17:04,879 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [82673572] [2019-10-15 01:17:04,879 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:17:04,879 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:17:04,879 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:17:04,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:17:05,292 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2019-10-15 01:17:05,292 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [82673572] [2019-10-15 01:17:05,292 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:17:05,293 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2019-10-15 01:17:05,293 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1181367515] [2019-10-15 01:17:05,293 INFO L442 AbstractCegarLoop]: Interpolant automaton has 15 states [2019-10-15 01:17:05,294 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:17:05,294 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2019-10-15 01:17:05,294 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=181, Unknown=0, NotChecked=0, Total=210 [2019-10-15 01:17:05,294 INFO L87 Difference]: Start difference. First operand 1407 states and 1987 transitions. Second operand 15 states. [2019-10-15 01:17:08,368 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:17:08,368 INFO L93 Difference]: Finished difference Result 2036 states and 2867 transitions. [2019-10-15 01:17:08,369 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2019-10-15 01:17:08,369 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 200 [2019-10-15 01:17:08,369 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:17:08,380 INFO L225 Difference]: With dead ends: 2036 [2019-10-15 01:17:08,380 INFO L226 Difference]: Without dead ends: 1473 [2019-10-15 01:17:08,383 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 188 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=155, Invalid=1035, Unknown=0, NotChecked=0, Total=1190 [2019-10-15 01:17:08,386 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1473 states. [2019-10-15 01:17:08,448 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1473 to 1443. [2019-10-15 01:17:08,449 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1443 states. [2019-10-15 01:17:08,456 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1443 states to 1443 states and 2046 transitions. [2019-10-15 01:17:08,456 INFO L78 Accepts]: Start accepts. Automaton has 1443 states and 2046 transitions. Word has length 200 [2019-10-15 01:17:08,457 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:17:08,457 INFO L462 AbstractCegarLoop]: Abstraction has 1443 states and 2046 transitions. [2019-10-15 01:17:08,457 INFO L463 AbstractCegarLoop]: Interpolant automaton has 15 states. [2019-10-15 01:17:08,457 INFO L276 IsEmpty]: Start isEmpty. Operand 1443 states and 2046 transitions. [2019-10-15 01:17:08,462 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 201 [2019-10-15 01:17:08,463 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:17:08,463 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 01:17:08,463 INFO L410 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:17:08,464 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:17:08,464 INFO L82 PathProgramCache]: Analyzing trace with hash 1383640434, now seen corresponding path program 1 times [2019-10-15 01:17:08,464 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:17:08,464 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [239957896] [2019-10-15 01:17:08,465 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:17:08,465 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:17:08,465 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:17:08,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:17:08,837 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2019-10-15 01:17:08,837 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [239957896] [2019-10-15 01:17:08,837 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:17:08,838 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2019-10-15 01:17:08,838 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [681420983] [2019-10-15 01:17:08,839 INFO L442 AbstractCegarLoop]: Interpolant automaton has 18 states [2019-10-15 01:17:08,839 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:17:08,839 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2019-10-15 01:17:08,840 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=273, Unknown=0, NotChecked=0, Total=306 [2019-10-15 01:17:08,840 INFO L87 Difference]: Start difference. First operand 1443 states and 2046 transitions. Second operand 18 states. [2019-10-15 01:17:09,476 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:17:09,477 INFO L93 Difference]: Finished difference Result 2434 states and 3427 transitions. [2019-10-15 01:17:09,478 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2019-10-15 01:17:09,479 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 200 [2019-10-15 01:17:09,479 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:17:09,496 INFO L225 Difference]: With dead ends: 2434 [2019-10-15 01:17:09,496 INFO L226 Difference]: Without dead ends: 1561 [2019-10-15 01:17:09,501 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=61, Invalid=539, Unknown=0, NotChecked=0, Total=600 [2019-10-15 01:17:09,503 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1561 states. [2019-10-15 01:17:09,601 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1561 to 1561. [2019-10-15 01:17:09,601 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1561 states. [2019-10-15 01:17:09,610 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1561 states to 1561 states and 2218 transitions. [2019-10-15 01:17:09,611 INFO L78 Accepts]: Start accepts. Automaton has 1561 states and 2218 transitions. Word has length 200 [2019-10-15 01:17:09,611 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:17:09,611 INFO L462 AbstractCegarLoop]: Abstraction has 1561 states and 2218 transitions. [2019-10-15 01:17:09,612 INFO L463 AbstractCegarLoop]: Interpolant automaton has 18 states. [2019-10-15 01:17:09,612 INFO L276 IsEmpty]: Start isEmpty. Operand 1561 states and 2218 transitions. [2019-10-15 01:17:09,620 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 201 [2019-10-15 01:17:09,620 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:17:09,621 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 01:17:09,621 INFO L410 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:17:09,621 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:17:09,621 INFO L82 PathProgramCache]: Analyzing trace with hash -1967915888, now seen corresponding path program 1 times [2019-10-15 01:17:09,622 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:17:09,622 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [772880028] [2019-10-15 01:17:09,623 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:17:09,623 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:17:09,623 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:17:09,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:17:09,855 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2019-10-15 01:17:09,856 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [772880028] [2019-10-15 01:17:09,856 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:17:09,856 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-10-15 01:17:09,856 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1333796415] [2019-10-15 01:17:09,857 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-15 01:17:09,857 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:17:09,857 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-15 01:17:09,858 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-10-15 01:17:09,858 INFO L87 Difference]: Start difference. First operand 1561 states and 2218 transitions. Second operand 5 states. [2019-10-15 01:17:10,899 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:17:10,899 INFO L93 Difference]: Finished difference Result 4105 states and 5854 transitions. [2019-10-15 01:17:10,899 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-10-15 01:17:10,900 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 200 [2019-10-15 01:17:10,902 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:17:10,926 INFO L225 Difference]: With dead ends: 4105 [2019-10-15 01:17:10,926 INFO L226 Difference]: Without dead ends: 3450 [2019-10-15 01:17:10,932 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2019-10-15 01:17:10,937 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3450 states. [2019-10-15 01:17:11,136 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3450 to 3432. [2019-10-15 01:17:11,136 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3432 states. [2019-10-15 01:17:11,154 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3432 states to 3432 states and 4894 transitions. [2019-10-15 01:17:11,155 INFO L78 Accepts]: Start accepts. Automaton has 3432 states and 4894 transitions. Word has length 200 [2019-10-15 01:17:11,155 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:17:11,156 INFO L462 AbstractCegarLoop]: Abstraction has 3432 states and 4894 transitions. [2019-10-15 01:17:11,156 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-15 01:17:11,156 INFO L276 IsEmpty]: Start isEmpty. Operand 3432 states and 4894 transitions. [2019-10-15 01:17:11,166 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 201 [2019-10-15 01:17:11,167 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:17:11,167 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 01:17:11,168 INFO L410 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:17:11,168 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:17:11,168 INFO L82 PathProgramCache]: Analyzing trace with hash -1947578513, now seen corresponding path program 1 times [2019-10-15 01:17:11,168 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:17:11,169 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [247010226] [2019-10-15 01:17:11,169 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:17:11,169 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:17:11,170 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:17:11,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:17:11,429 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2019-10-15 01:17:11,429 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [247010226] [2019-10-15 01:17:11,430 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:17:11,430 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-10-15 01:17:11,430 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2049241505] [2019-10-15 01:17:11,431 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-10-15 01:17:11,431 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:17:11,431 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-10-15 01:17:11,432 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-10-15 01:17:11,432 INFO L87 Difference]: Start difference. First operand 3432 states and 4894 transitions. Second operand 7 states. [2019-10-15 01:17:13,601 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:17:13,602 INFO L93 Difference]: Finished difference Result 11201 states and 16975 transitions. [2019-10-15 01:17:13,602 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2019-10-15 01:17:13,602 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 200 [2019-10-15 01:17:13,603 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:17:13,742 INFO L225 Difference]: With dead ends: 11201 [2019-10-15 01:17:13,743 INFO L226 Difference]: Without dead ends: 8654 [2019-10-15 01:17:13,765 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=35, Invalid=121, Unknown=0, NotChecked=0, Total=156 [2019-10-15 01:17:13,781 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8654 states. [2019-10-15 01:17:14,380 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8654 to 8644. [2019-10-15 01:17:14,380 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8644 states. [2019-10-15 01:17:14,434 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8644 states to 8644 states and 12956 transitions. [2019-10-15 01:17:14,436 INFO L78 Accepts]: Start accepts. Automaton has 8644 states and 12956 transitions. Word has length 200 [2019-10-15 01:17:14,437 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:17:14,437 INFO L462 AbstractCegarLoop]: Abstraction has 8644 states and 12956 transitions. [2019-10-15 01:17:14,437 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-10-15 01:17:14,437 INFO L276 IsEmpty]: Start isEmpty. Operand 8644 states and 12956 transitions. [2019-10-15 01:17:14,449 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 202 [2019-10-15 01:17:14,450 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:17:14,450 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 01:17:14,451 INFO L410 AbstractCegarLoop]: === Iteration 10 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:17:14,451 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:17:14,451 INFO L82 PathProgramCache]: Analyzing trace with hash 212373713, now seen corresponding path program 1 times [2019-10-15 01:17:14,452 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:17:14,452 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1814421593] [2019-10-15 01:17:14,452 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:17:14,453 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:17:14,453 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:17:14,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:17:15,060 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2019-10-15 01:17:15,061 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1814421593] [2019-10-15 01:17:15,061 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:17:15,061 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2019-10-15 01:17:15,061 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1265308738] [2019-10-15 01:17:15,062 INFO L442 AbstractCegarLoop]: Interpolant automaton has 28 states [2019-10-15 01:17:15,062 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:17:15,063 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2019-10-15 01:17:15,063 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=703, Unknown=0, NotChecked=0, Total=756 [2019-10-15 01:17:15,063 INFO L87 Difference]: Start difference. First operand 8644 states and 12956 transitions. Second operand 28 states. [2019-10-15 01:17:16,343 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:17:16,343 INFO L93 Difference]: Finished difference Result 16748 states and 25652 transitions. [2019-10-15 01:17:16,344 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2019-10-15 01:17:16,344 INFO L78 Accepts]: Start accepts. Automaton has 28 states. Word has length 201 [2019-10-15 01:17:16,344 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:17:16,423 INFO L225 Difference]: With dead ends: 16748 [2019-10-15 01:17:16,423 INFO L226 Difference]: Without dead ends: 8989 [2019-10-15 01:17:16,468 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 66 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=101, Invalid=1459, Unknown=0, NotChecked=0, Total=1560 [2019-10-15 01:17:16,481 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8989 states. [2019-10-15 01:17:16,935 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8989 to 8972. [2019-10-15 01:17:16,935 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8972 states. [2019-10-15 01:17:16,979 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8972 states to 8972 states and 13455 transitions. [2019-10-15 01:17:16,982 INFO L78 Accepts]: Start accepts. Automaton has 8972 states and 13455 transitions. Word has length 201 [2019-10-15 01:17:16,982 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:17:16,982 INFO L462 AbstractCegarLoop]: Abstraction has 8972 states and 13455 transitions. [2019-10-15 01:17:16,983 INFO L463 AbstractCegarLoop]: Interpolant automaton has 28 states. [2019-10-15 01:17:16,983 INFO L276 IsEmpty]: Start isEmpty. Operand 8972 states and 13455 transitions. [2019-10-15 01:17:16,993 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 206 [2019-10-15 01:17:16,994 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:17:16,994 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 01:17:16,994 INFO L410 AbstractCegarLoop]: === Iteration 11 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:17:16,995 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:17:16,995 INFO L82 PathProgramCache]: Analyzing trace with hash -469886620, now seen corresponding path program 1 times [2019-10-15 01:17:16,995 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:17:16,995 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1700710216] [2019-10-15 01:17:16,995 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:17:16,996 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:17:16,996 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:17:17,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:17:17,216 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2019-10-15 01:17:17,217 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1700710216] [2019-10-15 01:17:17,217 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:17:17,217 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2019-10-15 01:17:17,217 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1367509766] [2019-10-15 01:17:17,219 INFO L442 AbstractCegarLoop]: Interpolant automaton has 10 states [2019-10-15 01:17:17,219 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:17:17,219 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2019-10-15 01:17:17,219 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2019-10-15 01:17:17,220 INFO L87 Difference]: Start difference. First operand 8972 states and 13455 transitions. Second operand 10 states. [2019-10-15 01:17:17,491 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:17:17,491 INFO L93 Difference]: Finished difference Result 9071 states and 13617 transitions. [2019-10-15 01:17:17,492 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2019-10-15 01:17:17,492 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 205 [2019-10-15 01:17:17,492 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:17:17,552 INFO L225 Difference]: With dead ends: 9071 [2019-10-15 01:17:17,553 INFO L226 Difference]: Without dead ends: 9068 [2019-10-15 01:17:17,562 INFO L600 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 [2019-10-15 01:17:17,574 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9068 states. [2019-10-15 01:17:17,956 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9068 to 9068. [2019-10-15 01:17:17,957 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9068 states. [2019-10-15 01:17:17,996 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9068 states to 9068 states and 13583 transitions. [2019-10-15 01:17:17,998 INFO L78 Accepts]: Start accepts. Automaton has 9068 states and 13583 transitions. Word has length 205 [2019-10-15 01:17:17,999 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:17:17,999 INFO L462 AbstractCegarLoop]: Abstraction has 9068 states and 13583 transitions. [2019-10-15 01:17:17,999 INFO L463 AbstractCegarLoop]: Interpolant automaton has 10 states. [2019-10-15 01:17:17,999 INFO L276 IsEmpty]: Start isEmpty. Operand 9068 states and 13583 transitions. [2019-10-15 01:17:18,008 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 211 [2019-10-15 01:17:18,008 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:17:18,008 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 01:17:18,009 INFO L410 AbstractCegarLoop]: === Iteration 12 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:17:18,009 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:17:18,009 INFO L82 PathProgramCache]: Analyzing trace with hash -208674281, now seen corresponding path program 1 times [2019-10-15 01:17:18,009 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:17:18,009 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1538747933] [2019-10-15 01:17:18,009 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:17:18,010 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:17:18,010 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:17:18,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:17:18,193 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2019-10-15 01:17:18,193 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1538747933] [2019-10-15 01:17:18,193 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:17:18,193 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-10-15 01:17:18,194 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1269406792] [2019-10-15 01:17:18,194 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-15 01:17:18,195 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:17:18,195 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-15 01:17:18,195 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-10-15 01:17:18,195 INFO L87 Difference]: Start difference. First operand 9068 states and 13583 transitions. Second operand 5 states. [2019-10-15 01:17:18,506 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:17:18,506 INFO L93 Difference]: Finished difference Result 17532 states and 26627 transitions. [2019-10-15 01:17:18,507 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-10-15 01:17:18,507 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 210 [2019-10-15 01:17:18,507 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:17:18,685 INFO L225 Difference]: With dead ends: 17532 [2019-10-15 01:17:18,685 INFO L226 Difference]: Without dead ends: 9397 [2019-10-15 01:17:18,722 INFO L600 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 [2019-10-15 01:17:18,732 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9397 states. [2019-10-15 01:17:19,133 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9397 to 9234. [2019-10-15 01:17:19,133 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9234 states. [2019-10-15 01:17:19,172 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9234 states to 9234 states and 13823 transitions. [2019-10-15 01:17:19,176 INFO L78 Accepts]: Start accepts. Automaton has 9234 states and 13823 transitions. Word has length 210 [2019-10-15 01:17:19,176 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:17:19,176 INFO L462 AbstractCegarLoop]: Abstraction has 9234 states and 13823 transitions. [2019-10-15 01:17:19,176 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-15 01:17:19,177 INFO L276 IsEmpty]: Start isEmpty. Operand 9234 states and 13823 transitions. [2019-10-15 01:17:19,187 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 211 [2019-10-15 01:17:19,187 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:17:19,188 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 01:17:19,188 INFO L410 AbstractCegarLoop]: === Iteration 13 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:17:19,188 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:17:19,188 INFO L82 PathProgramCache]: Analyzing trace with hash 952522831, now seen corresponding path program 1 times [2019-10-15 01:17:19,188 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:17:19,189 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1041789719] [2019-10-15 01:17:19,189 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:17:19,189 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:17:19,189 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:17:19,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:17:19,423 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2019-10-15 01:17:19,424 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1041789719] [2019-10-15 01:17:19,424 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:17:19,424 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2019-10-15 01:17:19,424 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [434640099] [2019-10-15 01:17:19,425 INFO L442 AbstractCegarLoop]: Interpolant automaton has 13 states [2019-10-15 01:17:19,425 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:17:19,425 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2019-10-15 01:17:19,426 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=133, Unknown=0, NotChecked=0, Total=156 [2019-10-15 01:17:19,426 INFO L87 Difference]: Start difference. First operand 9234 states and 13823 transitions. Second operand 13 states. [2019-10-15 01:17:20,236 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:17:20,237 INFO L93 Difference]: Finished difference Result 17539 states and 26237 transitions. [2019-10-15 01:17:20,237 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2019-10-15 01:17:20,237 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 210 [2019-10-15 01:17:20,238 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:17:20,295 INFO L225 Difference]: With dead ends: 17539 [2019-10-15 01:17:20,295 INFO L226 Difference]: Without dead ends: 9238 [2019-10-15 01:17:20,330 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=73, Invalid=433, Unknown=0, NotChecked=0, Total=506 [2019-10-15 01:17:20,348 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9238 states. [2019-10-15 01:17:21,544 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9238 to 9206. [2019-10-15 01:17:21,544 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9206 states. [2019-10-15 01:17:21,583 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9206 states to 9206 states and 13770 transitions. [2019-10-15 01:17:21,587 INFO L78 Accepts]: Start accepts. Automaton has 9206 states and 13770 transitions. Word has length 210 [2019-10-15 01:17:21,587 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:17:21,587 INFO L462 AbstractCegarLoop]: Abstraction has 9206 states and 13770 transitions. [2019-10-15 01:17:21,587 INFO L463 AbstractCegarLoop]: Interpolant automaton has 13 states. [2019-10-15 01:17:21,588 INFO L276 IsEmpty]: Start isEmpty. Operand 9206 states and 13770 transitions. [2019-10-15 01:17:21,597 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 212 [2019-10-15 01:17:21,597 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:17:21,598 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 01:17:21,598 INFO L410 AbstractCegarLoop]: === Iteration 14 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:17:21,598 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:17:21,598 INFO L82 PathProgramCache]: Analyzing trace with hash -438718559, now seen corresponding path program 1 times [2019-10-15 01:17:21,599 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:17:21,599 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1731512734] [2019-10-15 01:17:21,599 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:17:21,599 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:17:21,599 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:17:21,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:17:21,765 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2019-10-15 01:17:21,765 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1731512734] [2019-10-15 01:17:21,765 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:17:21,765 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-10-15 01:17:21,766 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1426152510] [2019-10-15 01:17:21,767 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-10-15 01:17:21,767 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:17:21,767 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-10-15 01:17:21,767 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-10-15 01:17:21,767 INFO L87 Difference]: Start difference. First operand 9206 states and 13770 transitions. Second operand 6 states.